SR-5-A (7)
CA:SSS:CJC:bl
Councll Meetlng 10/14/80
Santa Monlca, Callfornla
A"ti~ Le.
5..A
'OCT t 4 '980
STAFF REPORT
TO:
Mayor and Clty CounCll
FROr1.:
Clty Attorney
SUBJECT:
Rules and Regulat10ns Implernent1ng
Alrport NOlse Leglslatlon
Attached 1S a revlsed verSlon of the Rules and
Regulatlons lmplementing the Alrport nOlse oralnance WhlC~ was
orlglnally lncluded In the 9/23/80 Cauncll packet as Item lOA.
Technlcal changes have been made In the follow1ng locatlons:
1. Page 6, (3), Ilne 3:
Read:
IT
. or maXlillum gross takeoff welght
as speclfled by the alrcraft manufacturer,
whlchever lS smaller."
Now Reads:
t,
. for propeller alrcraft and 800
pounds for Jet alrcraft, or maXlffium gross
takeoff welght as speClfled by the alrcraft
manufacturer, whlchever lS smaller."
2. Page 8, (2), Ilne 11:
Read:
"
based on the. . . .'1
Now Reads:
"
. used w1th the . .
"
~tJtiirltrn. t"b
5-8
leT 1 4 1980
3. Page 10, lte~ 8 (top sectlon) :
Read:
"Operators speed In KIAS
"
Now Reads:
"S~eed In KIAS
"
Page 10, ltem 6 (bottom sectlon)
Read:
"FAR-36, Appendlx C
NOlse Level
(FAA NOlse Certlflcatlon)
(CPNdB) "
'~ow Reads:
"fAR-36, Appendlx C (FAl\ NOlse Certlflcatlon)
~Olse Level (EPNL), and graph or tabJe
of LPNL varlatlon ~..H th takeoff welght. II
'I'hese changes ,,,ere reconT'1ended by the Cl ty t S nOlse
consultant, Dr. Karl Rryter.
pre~ared by: Stephen Shane Star~, Actlng Clty Attorney
Colleen J. Clement, Legal Asslstant
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RULES AND REGULATIONS
IMPLEME~TING AIRC~~FT NOISE LEGISLATION
AT
SANTA MONICA AIRPORT
AuthOYlty
These rules and regulatlons lmplement certaln parts of
the Santa Monlca Munlclpal Code Seetlon lOl05B, as amended by
Ordlnance 1137 (CCS) I whlch sets the maXlmum permlsslble Slngle
Event NOlse Exposure Level (SENEL) at 85 for alrcraft, followlng
takeoff from the Alrport. They are promulgated by the Alrport
Dlrector under the authorlty of Sectlon 3 of Ordlnance 1137.
Type Ban
These rules and regulatlons requlre that types of
alrcraft estlmated to be unable to operate at or below the allowable
85 SENEL Ilffilt upon takeoff at Santa Monlca Alrport, with a nOlse
abatement power cutback followlng takeoff under average weather
condltlons at Santa ~onlca Alrport and at mlnlmUffi operatlng gross
welght, be "llsted" by type and prohlblted from uSlng the Alrport
except In an emergency.
SENEL Llffiltatlon
The rules and regulat10ns also requlre that a 11St of
alrcraft WhlCh would be llkely to exceed an 85 SENEL, wlth a nOlse
abatement power cutback followlng takeoff under average weather
condltlons at Santa Monlca Alrport, and at greater than mlnlmum
operat1ng gross welght, be 11sted on an advlsory Ilst along w1th
the expected SENEL values of the alrcraft at varlOUS welghts
up to the maXlmum gross takeoff welght. Such a~rcraft would
not be type banned but would be subJect to the SENEL llmltatlon,
as measured at the meter. Unrated alrcraft and those WhlCh
would not be expected to exceed an 85 SENEL even at maXlmum
gross welght would also be subJect to the 85 SENEL as measured
at the meter.
Weather Effects on SENEL
These rules and regulatlons provlde that tables showlng
the effects of varlOUS weather condltlons at Santa Monlca Alrport
upon alrcraft performance and nOlse be publlshed by the Alrport
Dlrector. These tables wlll be advlsory only and wlll show the
effects to be expected upon takeoff nOlse as a result of teMperature,
wlnd, and hUffildlty condltlons that dev~ate from the annual averages
for those varlables at Santa Monlca Alrport.
Modlficatlons of Alrcraft Ratlngs
These rules and regulatlons further provlde for a means
by WhlCh a partlcular unrated alrcraft may be evaluated and a
partlcular banned alrcraft may be exempted and removed from the
llst.
Exceptlons For NOlse Abatement Purposes
These rules and regulatlons permlt, wlth prlor approval
from the Alrport Dlrector, alrcraft takeoffs ln excess of
85 SENEL If the fllghts are speclflcally for nOlse abatement
lnstructlon or ratlng of alrcraft.
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Effect
The ~ntended effect of these rules and regulat10ns ~s to
reduce the Commun1ty N01se Equlvalence Level (CNEL) 1n the area
around the A~rport from 1tS current level of approx~mately 65 CNEL
to a level not greater than 55 CNEL. Th1S reduced level 1S
recommended by the U. S. Env~ronmental Protect1on Agency as
requlslte for the protectlon of publ1C health and welfare wlth
an adequate marg~n of safety.
Effect1ve Date
These rules and regulat10ns w1ll not go lnto effect
upon adopt1on, but wlll become effective on the earl1est date
upon WhlCh they may be legally enforced. The C1ty of Santa Mon1ca
lS currently en]olned from enforc1ng the 85 SENEL Ilffi1tatlon
pend1ng a dlstrlct court declslon on the const1tut1onal1ty of
pertlnent sect10ns of Ord1nance 1137.
The tr1al date for
Nat10nal BUSlness Alrcraft Assoc., et al., v. C1ty of Santa Mon1ca,
(C.D.Cal.), CV 79-04139-IH, WhlCh wl1l determlne th1S lssue, lS
antlclpated 1n December 1980.
Inqu1rles
All ~nqu1r1es regardlng these rules and regulatlons should
be d1rected to:
The A1rport D1rector's Off1ce
Santa Monlca Mun1clpal A1rport
3200 Alrport Ave.
Santa Mon~ca, CA 90405
-3-
Related EXlstlng Law
1. Federal.
The NOlse Control Act of 1972 (42 V.S.C. Seetlon 4901)
states the federal POllCY regardlng the control of nOlse. 14
C.F.R. Sectlon 36 sets nOlse emlSSlon crlterla for alrcraft
certlflcatlon by the Federal AVlatlon Admlnlstratlon. Part 36,
Appendlces C and F (14 C.F.R. Sectlon 36) establlsh the method
of measurement for nOlse certlflcatl0n. The mathematlcal formulae
used thereln are adopted, wlth modlflcatlons, for use In these
rules and regulatlons.
As requlred by Sectlon 5(a) (2) of the NOlse Control
Act 1972, the EnvlronMental Protectlon Agency prepared the
publlcatlon entltled, "Inforrnatlon on Levels of Envlronmental
NOlse Requlslte to Protect PubllC Health and Welfare Wlth an
Adequate !1argln of Safety," (Rep. 550/9-74-004 (Harch 1973)),
WhlCh recommends a CNEL of 55.
2. State.
Callfornla Department of Aeronautlcs NOlse Standards
(21 Cal.Ad. Code Sectlon 5000-5080.5 (1977)), partlcularly SectloD
5012, prescrlbes a current nOlse llIDlt of 70 CNEL w1th a mandated
maX1ffium level of 65 CNEL by 1986. The standard lS based on a
"tYPlcal" cornmulllty and does not preclude the establlshrnent of a
lower level based upon the part1cular needs of the eornmunlty.
(See Seetlon 5005)
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TEXT
1. PURPOSE.
These rules and regulatlons are promulgated ln the
lnterest of publlC health and safety, aVlatlon1 and the promotlon
of nOlse abatement conslstent wlth and subJect to all appllcable
federal, state, and munlclpal laws. They lnterpret and lmplement
certaln sectlons of Ordlnance 1137. The underlYlng purpose of
these rules and regulatlons lS to control the alrcraft nOlse lmpact
around the Alrport so that It does not exceed an annuallzed CNEL
of 55 from alrcraft nOlse In resldentlal areas, thereby, lU some
part, harrnonlzlng Alrport uses wlth the resldentlal character of
the Alrport enVlronment.
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2. DEf'INITIOXS.
A. For the purposes of these rules and regulat1ons,
the def1n1t1on of each term, except as spec1f1cally prov1ded
here1n, 15 the same as that conta1ned ln the Federal Aviat10n
Regulat1ons, T1tle 14, Code of Federal Regulat1ons, here1nafter
referred to as FAR, or contalned ln other appl1cable federal,
state, and mun1cipal laws.
(1) The term "operator" shall mean pllot-1n-
command of an a1rcraft or Cert1f1ed Fl1ght
Instructor, wh1le ln actual control of
an alrcraft or engaged In fl1ght 1nstruct1on.
(2) The terms "est1mated nOlse w1ll exceed"
and "would be llkely to exceed" as
contalned In Sectlon 3, Subsectlon 9 and
9(a), respectlvely, of the Ordinance 1137,
are 1nterpreted to mean, estlmated to be
unable to operate at or below the allowable
SENEL Ilffi1t upon takeoff at Santa Monlca
A1rport.
(3) The tenn "m1nlmUffi operatlng gross we1ght,"
as used here1n, shall mean the Standard
Empty We1ght plus 400 pounds for propel1er
alrcraft and 800 pounds for Jet alrcraft, or
max1mum gross takeoff welght as spec1f1ed by the
alrcraft manufacturer, whlchever 1S smaller.
(4) The term "Standard Empty Welght," as used
hereln, shall mean the we1ght of the alrcraft,
plus unusable fuel, operatlng fluids, and
fuel all.
-6-
3. CATEGORIZATION OF AIRCRAFT BY SENEL.
A. CALCULATED SENEL RATINGS OF AIRCRAFT.
(1) The Alrport Dlrector shall provlde a
Ilst of the calculated SENEL values
expected, followlng takeoff, at Santa
Monlca Alrport nOlse monltor statlons for
any and all alrcraft expected and/or requestlng
to use Santa Monlca Alrport. These calculatlons
wlll be made ror alrcraft, when operatlng
at IDlnlmum gross operatlng welght and when
operatlng at welghts progresslvely lncreased
1n 400 pound lncrements, or other appro-
pr1ate lncrements, for a glven alrcraft,
up to the maXlmum gross takeoff welght for the
alrcraft as speclfled by ltS manufacturer.
These calculatlons shall contemplate for
takeoff operatlons the average annual w1nd
speed and d1rectlon, hum1d1ty and temperature
condltlons, angles of cllmb, and power cut
back for nOlse abatement purposes, If
appllcable, to a power and at an altltude
WhlCh lS safe, based upon the FAA's standards,
or If none eX1st, upon any other reasonably
appllcable standard.
-7-
(2) ThlS llSt shall be prepared by the
A~rport Dlrector USlng reasonable
technlcal procedures and lnformat~onl
w~th the asslstance of those governmental
offlclals of the state and federal
government, lncludlng the FAA, WhlCh
provlde such asslstance. ThlS 11St may be
extended and/or modlfled on the basls of
publlcatlons to be lssued by the FAA or
other rellable sources. ThlS Ilst lS to
be prepared from lnformatlon used wlth the
FAA Integrated NOlse Model (verslon 1) or
FAA approved modlflcatlons thereto for Jet
alrcraft and from formulae for propeller
drlven alrcraft, If avallable. The Alrport
Director shall make a copy of the 11Stl
procedures and formulae avallable, upon
request, to any lnterested person.
(3) The Alrport Dlrector shall prepare tables
showlng the effects to be expected on SENEL's,
followlng takeoff for certaln types of alr-
craft under temperature, wlnd, and humldlty
condltlons that dlffer from the average annual
values for those condltlons at Santa Monlca
Alrport. The range of the table of condltlons
wlll cover those to be expected at Santa Monlca
Alrport.
(4) The owner or operator of any alrcraft model
WhlCh lS llsted In Sectlon 3(A) of these
rules and regulatlons may show the lnappll-
-8-
cablllty of the typ~ ratlng to h1S part1cular
alrcraft by establ1shlng to the sat1sfact1on
of the Alrport D1rector:
(a) that sufflclent mod1flcatlons have
been made to the alrcraft so as to
render the est1mates conta1ned there1n,
1naccurrate, or
(b) that the formulae used there1n, are
lnappllcable to the spec1f1c model
1nvolved.
If the Alrport Dlrector agrees that th1S
ratlng lS not appl1cable for the reason(s)
stated hereln, the part1cular alrcraft shall
be treated as not appear1ng on the banned
11st.
The owner or operator of each such
a1rcraft shall not1fy the A1rport Dlrector,
supply new lnformatlon, and conduct new tests,
at any t1me at Wh1Ch a further modlf1cat1on
18 made to the alrcraft WhlCh may affect lts
claSS1flcatlon.
(5) Any lnterested person may request the A1rport
D1rector to estlrnate the proJected SENEL for
a part1cular unrated a1rcraft. The request
for these SENEL ratlngs shall 1nclude the
followlng speclflcatlons, or thelr equlvalents:
For Propeller Drlven Alrcraft
(Sea Level Operatlon)
1. Type and model number of alrcr&ft and manufacturer
-9-
2. MaXlmum welght of alrcraft on: takeoff
landlng
3. Standard Empty Welght
4. Dlstance over a 50 foot obstacle at sea level,
ooe 200e
5. Best cllmb speed In Knots Indlcated Alrspeed
(KIAS) Approx. rpm
6. Best rate of Cllmb In feet per mlnute (FPM)
at 00 at 200
7. Best Cllrnb angle:
KIAS (at clum power)
Approx. rpm
8. Speed ln KIAS ~
at percent power, as given ln operator's
handbook for crulslng operatlon
9. Number of englnes
10. MaXlmum brake horsepower per englne
11. Dlameter of propeller (lnches)
12. Propeller tlp (check one): (a) ThlCk, square tip
(b) Thln, tapered tlp
13. Propeller pltch (check one): (a) flxed
(b) varlable
For Jet Drlven Alrcraft
(Sea Level Operation)
1. Type and model number of alrcraft and manufacturer
2. MaXlffiurn landlng welght of alrcraft
3. Standard Empty Weight
4. Englne Manufacturer
Englne Model Number
5. MaXlmun thrust per englne
6. FAR-36, Appendlx C (FAA NOlse Certlflcatlon)
NOlse Level (EPNL). and graph or table
of EPNL varlation with takeoff weight.
-10-
7. Approx. KIAS at 500 feet altltude followlng
takeoff wlth nor~al takeoff power
B. TYPE BANNED AIRCRAFT. The Alrport Dlrector,
by separate publlcatlon, shall 11St alrcraft types whose estlmated
nOlse wlll exceed or WhlCh would be llkely to exceed a SENEL of
85 as measured at Santa Monlca Alrport, when operated at mlnlmum
operatlng gross welght. These alrcraft are prohlblted from USlng
the Alrport, except In an emergency.
C. OTHER AIRCRAFT SUBJECT TO SENEL LIMITATION.
The Airport Dlrector shall publlsh an advlsory 11St of
alrcraft WhlCh would not be llkely to exceed 85 SENEL at the Santa
Monlca Alrport NOlse Monltor Statlons when operatlng at mlnlmum
gross operatlng welght under the condltlons descrlbed ln Sectlon 3(A).
Such alrcraft would not be type banned alrcraft but would be subJect
to the SENEL llmltatlon, as measured at the meter. The Alrport
Dlrector will publlSh SENEL values for these alrcraft when operatlng
wlth welghts from mlnlmUffi to maXlffium gross takeoff welghts as
descrlhed In Sectlon 3(A) (1).
D. UNRATED AIRCRAFT. The owner or operator of an
alrcraft for whlch expected SENEL on takeoff from Santa Monlca
Alrport has not been calculated by the Alrport Dlrector shall be
subJect to the SENEL llffiltatlon of 85.
E. EXCEPTION FOR NOISE ABATEMENT PURPOSES. SENEL
readlngs In excess of the maXlffium permltted nOlse level whlch occur
durlng approved lnstruction In nOlse abatement technlques or durlng
test fllght of alrcraft for the express purpose of nOlse abatement
shall not be consldered vlolatlons, provlded that the owner or
operator recelved prlor approval from the Alrport Dlrector for
each such fllght.
-11-
~
\
,
DATED: September 17, 1980
APPROVED AS TO FORM:
ST~bH~h~R)t.k
Actlng Clty Attorney
CHARLES KENT MCCLAIN
Alrport Dlrector
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g()t).... tJfPq ---- 03
NOTICE or PROPOSED RULE-~ffiKING
TITLE:
RULES A~D REGULATIONS IMPLF.MENTING AIRCRAFT ~OISE LEGISLATION
AT SANTA nOl'";ICA AIRPORT
SU~~~ARY: These rules and regulatlons lnpleNent certaln parts of
the Santa 2bnlca I~nlclpa1 Code SlOl05B, as a~ended by
Qrdlnance 1137 (CCS), ~nd prescrlbe the method of en~orce-
ment of the Slng1e Event ~Olse Exposure Level llTIltatlon
(SENEL) of 85 declbels (dBA) for alrcraft uSlng the
Alrport. They are promulgated by the Airport Dlrector
under the authorlty of Sectlon 3 of Ordlnance 1137.
These rules and regulatlons lmpleflent the Code reqUlrement
that types of alrcraft estlflatec. to be unable to operate
at or below the allowable 85 dBA SENEL limlt upon take-off
at Santa IlonlCa. Alrport be llsted.
"Llsted alrcraft"
are ?rohiblted from uSlng the Alrport except In an emergency.
These rules and regulatlons also provide a 2 dBA tolerance
for prosecutlon of a vlolatlon of the Measured 85 SENEL
Ilm1.t. If a "llsted alrcraft" measures an 87 dBA or above
at the ~onltor slte, prosecution wlll be requested on the
flrst offense. If an "unllsted alrcraft" measures an 87 dBA
or above at t~e monitor slte, a warnlng wll1 be glven for
a flrst vlolatlon.
These rules and regulatlons further provlde for a IDeans
by which a part1cular "unl1sted a1rcrart" may be rated,
and a partlcular "l1sted alrcraft" may be exempted from
the type ban and removed from the llst of non-complying
a~rcraft.
EFFECT:
The lntended effect 0= these rules and regulat10ns lS to
reduce the Community No~se F.qulvalence Level (CNEL) In the
area around the Alrport from lts current level of approximately
65 CNEL to a level not greater than 55 CNEL. ThlS reduced
level lS recommended by the U. S. Environmental Protectlon
Agency as requls1te for the protectlon of publ1C health
and welfare wlth an adequate ~argln of safety.
EFFECTIVE
DATE: These rules and regulatlons wlll not go lnto effect upon
adoptlon, but wlll become effectlve on the earliest date
upon \vluch the}' T:1ay be legally enforced. The Clty or Santa
~bnlca lS currently en]olned from enforclng the 85 dBA
SENEL 11~ltatlon pend1ng a Dlstrict Court dec1slon on the
constitutlonallty of pertlnent sectlons of Ordlnance 1137.
The trial date for Natlonal BUS1ness Alrcraft Assoc. et al.
v. Clty of Santa Monlca (C. D. Cal.), CV 79-04119-IH, WhlCh
wlll determlne thlS lssue, lS anticlpated In September 1930.
-2-
INQUIR-
IES:
All lnqu~rles regard~ng these rules and regulatlons should
be chrected to:
The Alrport Dlrector's Offlce
Santa nonlca llunlclpal Airport
3200 Alrport Avenue
Santa tbnlca, Callfornia 90405
PUBLIC
PARTICI-
PATION: Prlor to the date upon V..rh1Ch the proposed actlon would
become effectlve, any lnterested person or h15 duly
authorlzed representatlve shall have the opportunlty to
present statements, arguftents, or contentlons In wrlt1nq
by flllng the Sane \"1. th the Offlce of the Alrport Dlrector.
In addltlon to wrltten COMments, a publlc hearlng on the
proposed rules and regulatlons will be held prlor to
thelr adoption. All 1nterested persons are invlted to
attend. The date, time, and place of the hearlng 18 as
follows: DATB: August 13, 1980
TD!E: 7:30 p.JTl.
PLACL: ~aln Llbrary Audltorium
1343 Slxth St., Santa Monlca, CA
TEXT:
RULES AND REGULATIONS It1PLErU:::NTING AIRCRAFT nOISE LEGISLA'i'ION
AT SA::-JTA !-iONICA AIRPORT
1. PURPOSE:
These rules and regulatlons are promulgated ln the interest
of publlC health and safety, aVlation, and the promotlon
-3-
of nOlse abate~ent conslstent wlth and subJect to all
appllcable federal, state, and mun1clpal laws. They
lnterpret and l@plement certaln sectlons of Ordinance 1137.
The underlY1ng purpose of these rules and regulatlons
1S to control the alrcraft nOlse lmpact around the alrport
so that lt does not exceed a CNEL of 55 from alrcraft no~se
ln resldentlal areas, thereby, In some part, harmonlzlng
Alrport uses wlth the resldentlal character of the Alrport
enVlron~ent.
These rules and regulatlons establlsh two maJor categorles
of a1rcraft, llsted and unl1sted, based excluslvely on
the nOlse characterlstlcs of alrcraft by type, as deter-
mlned by the state of the art nOlse measurement methodology.
These categor1es determ1ne the standards for prosecut1on
Ear alrcraft nOlse vlolatlons.
2. DEFI~ITIONS:
A. For the purposes of these rules and regulatlons,
the deflnltion of each term, except as spec1fically prov1ded
hereln, 15 the same as that contalned In the Federal
Aviatlon Regulatlons, Tltle 14, Code of Federal Regulations,
herelnafter referred to as FAR, or conta1ned In other
appllcable federal, state and municlpal laws.
(1) The term "operatorl' shall mean pllot-ln
cONMand of an alrcraft or Certlfled Fl1ght
-4-
Instructor, wh~le in actual control of
an alrcraft or engaged In fl~ght
lnstruct~on.
(2) The terms "estlmated nOlse w~ll exceed"
and "would be llkely to exceed" as
conta1ned ln Sectlon 3, Subsect~on 9 and
9 (a), respect~vely, of the Ordlnance 1137,
are interpreted to mean, estlmated to be
unable to operate at or below the allow-
able SENEL Ilmlt upon take-off at Santa
l1on~ca Alrport.
(3) The term "mlnJ..1'1.Um gross we~ght/" as used
herein shall mean the Standard Llnpty Welght
of an alrcraft.
3. ESTH1ATED SENEL BY AIRCRAFT I:lODEL:
A. Llsted Alrcraft: The Alrport Dlrector, by separate
publicatlon, shall 11st alrcraft models whose estlmated
n01se wl1l exceed or WhlCh would be llkely to exceed a SENEL
of 85 as measured at Santa Monlca Alrport, when operated at
less than r.1ax~mum gross welgJ1t. Thl.s Ilst shall contemplate
for take-off: preva~ling wlnd condltlons, angle of Cllmb
and power cut back for noise abate~ent purposes, If appll-
cable, at an angle of cllmb and to a power at an altltude
WhlCh lS safe, based upon the FAA's standards, or If none
eXlst, upon any other reasonably appllcable standard.
-5-
(1) ThlS llst shall be prepared by the Alrport
Director uSlng reasonable technlcal pro-
cedures and lnformatlon, wlth the asslstance
of those govern~ental offlclals of the state
and federal government, lncludlng the FAA,
WhlCh provlde such asslstance. It may be
extended and/or modlfled on the baslS of
publicatlons to be issued by the FAA or
other rellable sources. ThlS Ilst 15 to
be prepared from lnformatlon based on the
FAA Integrated NOlse Model (Vers1on I) or
FAA approved modiflcatlons thereto for Jet
alrcraft and from formulae for propeller
driven alrcraft, If avallab1e. The Alrport
Dlrector shall make a copy of the 11St,
procedures and formulae avallable, upon
request, to any lnterested person.
(2) The owner or operator of any alrcraft model
WhlCh 1S Ilsted in Sectlon 3 (a) of these
rules and regulatlons may show the lnappll-
cabll1ty to hlS alrcraft of the publ1shed
llst by establishlng to the satlsfactlon of
the Alrport Dlrector:
(a) that sufflClent ~odlflcatlons have
been made to the alrcraft so as to
render the estlmates contalned therein,
-6-
1naccurate, or
(b) that the for~ulae used there1n, are
lnapplicable to the speclflc model
lnvolved.
If the Alrport Dlrector agrees that thlS llst
15 applicable for the reason(s) stated herein,
the partlcular alrcraft shall be treated as
not appearlng on the Ilst. The owner or
operator of each such a1rcraft shall notify
the Alrport Director, supply new informatlon,
and conduct new tests, at any time at Whlch a
further modlf~catlon lS made to the alrcraft
WhlCh nay affect lts classiflcatlon.
B. Ratlng of Unllsted Alrcraft: Any lnterested person
may request the Alrport Dlrector to est1mate the proJected
SENEL for a partlcular unl1sted a1rcraft. The request shall
include the following speclflcatlons, or thelr equlvalents:
For Propeller Drlven Alrcraft (Sea Level Operatlon)
1. Type and model number of alrcraft and
manufacturer
2. Maxl~um landlnq welght or alrcraft
3. Standard empty welght
4. Dlstance over a 50 foot obstacle
5. Best CllMb speed ln Knots Indlcated Alrspeed
(KIAS) Approx. rpm
6. Best rate of Cll~~ ln feet per Minute (FPM): at 00
at 200
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7. Best cllffib angle: KIAS
at cllmb power, approx.
rpm
CrUlse speed KIAS I percent power
Number of englnes
LIaxlmur'1 brake horsepower per englne
8.
9.
10.
II.
12.
DlaMeter of propeller
Propeller tlp (check one)
lnches
13.
(a) thlck, square tlp
(b) thln, tapered tlp
Propeller pltch (check one): (a) flxed
(b) varlable
I
--
For Jet Drlven Aircraft (Sea Level Operatlon)
1. Type and Model number of alrcraft and
manufacturer
2. MaXlffium landlng welght of alrcraft
3. Standard empty weight
4. Englne Manufacturer
Englne Model Number
5. i1axirnu!'1 thrust per englne
6. FAR-36, Appendlx C (FAA NOlse Certlflcat1on)
Noise Level EPNdB.
7. ApprOxlmate KIAS at 500 feet altltude followlng take-off
wlth norMal take-off power
4 . ENFORCEi1ENT :
A. MaXl!'1Um Permlsslble ~Olse Level:
(1) For excluslon purposes the maXlmum per-
mlsSlble nOlSe level from alrcraft engaged
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1n take-off, landlng, or ground operatlons
at Santa Monlca Alrport shall be 85 decibels
(8S dBA), as measured On the SENEL scale
descrlbed ~n Santa flonlca Munlclpal Code,
510105B,
Subsectlons (2) through (8),
lnclusive.
(2) TO allow for measurement varlabll1ty, nO
prosecutlon wlll be sought for any vlolation
of the maxlmum pernltted nOlse level below
87 dBA. (See Santa Monlca Munlcipal Code
5 10105B (6), 21 Cal. Adm. Code ~5080.3)
(3) SE~EL readings above 85 dBA will be calculated,
for purpose of prosecutlon under these rules
and regulatlons, frofl a pOlnt 10 dBA below
the maX1Mum dBA (dBA}1) for the reported event,
so as to ID1nlm1ze the posslbll1ty that high
SENEL readlngs may be conta~lnated by non-
a1rcraft nOlSe.
B. Llsted A1rcraft; The owner or operator of an
alrcraft WhlCh 15 llsted pursuant to Section 3 (a) of these
rules and regulatlons, and whlch does In fact record an 87
dBA, as neasured at the meter, lS concluslvely presumed to
have lntended to vlolate glOl05B (8) of the Santa MODlca
Munlclpal Code and shall be prosecuted accordlngly.
C. Unl1sted Alrcraft: The owner or operator of an
aircraft which 15 not Ilsted pursuant to Sect~on 3 (a) of
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these rules and regulatlons, or lS treated as unllsted
pursuant to Sect10n 3 (a) (2) and which does In fact record
an 87 dBA as measured at the TIeter, shall be subJect to
prosecutlon as follows:
(1) For the flrst violatlon, the owner or
operator shall be glven a warnlng and
adVlsed of the alrcraft's SENEL level.
(2) For the second and subsequent vlolatlons,
the owner or operator shall be subJect to
prosecutlon in accordance wlth law.
D. Warnings: For all alrcraft nOlse events measured
between an 85 dBA and a 87 dBA SENEL, a warning wlll be
lssued and a permanent record shall be kept.
E. Exceptlon for NOlse AbateMent Purposes: SENEL
readlngs In excess of the MaximQm permltted nOlse level
WhlCh occur durlng approved instructlon in nOlse abatement
technlques or durlng test fllght of alrcraft modlfled for
the express purpose of noise abatement shall not be consldered
vlolatlons, provlded that the owner or operator received prlor
approval from the Alrport Dlrector for each such 1nstructlon
or test flight.
RELATED
EXISTI~G
LAW: 1. FEDERAL:
The NOlse Control Act of 1972 (42 U. S. C. 54901) states
the Federal polley regardlng the control of nOlse. 14
-10-
c. F. R. ~36 sets nOlse emisslon crlterla for aircraft
certlflcat~on by the rederal AVlatlon Adm1nistratlon.
Part 36, Appendlces C & F (14 C. F. R. S36) establlsh
the ~ethod of measurement for nOlse certlflcation. The
mathematlcal formulae used thereln are adopted, wlth
modiflcations, for use In these rules and regulations.
As requlred by Sectlon 5 (a) (2) of the NOlse Control
Act 1972~ the Envlronmental Protectlon Agency prepared
the publicatlon entltled, I1Informatlon on Levels of
Envlronmenta1 NOlse Requlsite to Protect PubllC Health
and Welfare l1;'l th an Adequate ~1argln of Safety, 11 {Rep.
550/9-74-004 (March 1973)), whlch recommends a CNEL of 55.
2. STATE:
Ca11fornla Department of Aeronautics Noise Standards
(21 Cal. Ad. Code 5~5000-5080.5 (1977)), partlcularly Sect10n
5012 prescr1bes a current noise 11ffilt of 70 CNEL wlth a mandated
maX1MUM level of 65 CNEL by 1986. The standard lS based
on a "tYPlcal" commun1ty and does not preclude the
establlshment of a lower level based upon the partlcular
needs of the communlty.
(See Sectlon 5005)
3. SAUTA ~10NICA 11UNICIPAL CODE:
Santa ltlonlca flunlclpal Code S;lOl05B (2) (e), amended by
Sectlon 3 of Ordlnance 1l37, deflnes "Slngle Event NOlse
-ll-
Exposure Level" (SENEL) and sets the threshold n01se level
at 63 NL. Sectlon 4 (A) (3) of these proposed rules and
regulat~ons prov1de that the noise level be calculated
from a point 10 dBA below the maXlmum dBA (dBili~) for the
reported event when the dB~l of the event lS greater than
10 dBA above 63 NL.
Santa Honica Municlpal Code 510105B (8), amended by
Sectlon 3 of Ordlnance 1137, prov1des that the QaXlmum
permlsslble SE~.JLL shall be 85 declbels. Sectlon 4 (A) (2)
of these proposed rules and regulatlons provides a
tolerance of 2 dBA for varlablllty of alrcraft nOlse
measurement and does not prescrlbe prosecutlon below a
measured SENEL of 87 dBA.
Santa Honlca ~luniclpal Code ~10105B (9) and (9) (a), amended
by Sectlon 3 of Ordlnance 1137, contalns the terms "estlP1ated
nOlse wlll exceed" and "would be llkely to exceed,"
respectlvely. Sectlon 2 (A) (2) of these proposed rules
and regulatlons lnterprets these terms to mean, estlmated
to be unable to operate at or below the allowable SENEL Ilmlt
upon take-off at Santa Monlca A1rport. Pursuant to
Ordlnance 1l37, thlS classlflcatlon of alrcraft are
prohlb1ted from operat1ng at Santa Monlca A1rport, except
In an emergency.
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Santa Monlea Munlclpal Code Sl0105B (9) (a), amended by
Sectlon 3 of Ordlnance 1137, authorlzes the promulgation
of a 11St of alrcraft WhlCh would be llkely to exceed
the llmlt set at the monltor slte or sltes. Sectlons 3
(A; (I) and (2) of these proposed rules and regulatlons
lmplement the preparatlon of the Ilst, and add a sectlon
WhlCh permlts the operator or owner to SUbQlt eVldence
to show that hlS partlcular aircraft should not be on the
Ilst.
Santa Iillnlca Munlclpal Code ~10105B (10) (a) I amended by
Sectlon 3 of Ordinance 1137, concluslvely presumes an
intent to vlolate by Ilsted alrcraft WhlCh, when measured,
exceed the SENEL Ilmlt. Sectlon 4 of these proposed
rules and regulatlons does not change th~s.
Santa Monlca ~uniclpal Code 510105B (10) (b) I amended by
Section 3 of Ordlnance 1137, sets forth a rebuttable pre-
sumptlon of lntent to violate or crlmlnal neg1lgence when
alrcraft exceed the maximum permissible nOlse level, even
though, based upon Santa Monlca Munlclpal Code SlOl05B (9)
(a) and (b), they would not be expected to do so. Sectlon
3 (B) of these proposed rules and regulatlons provldes a
means by WhlCh a partlcular "unllsted alrcraft" can be rated.
Sectlon 4 (C) of these proposed rules and regulatlons set
forth the treatment of such a vlolatlon; for the flrst
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v101ation a warnlng is glven, for a second and subsequent
violatlon, there ~ay be prosecutlon.
APPROVED AS TO FO~l:
DATED: July 10, 1980
~
CHARLES KEn':!:' He CLAIN
Alrport Dlrector
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