AC 36-3H

Advisory circular · Estimated Airplane Noise Levels in A-Weighted Decibels

Approved
May 25, 2012
Last reviewed
May 25, 2012
This change
Change 1 Incorporated
Cancelled by
AC36-3H
Family
AC 36-3 · 3 versions
Revision
H, Change 1 Incorporated
14 CFR parts
36

Guidance, not mandatory unless a rule or AD requires it. DRS record last changed November 21, 2025.

AdvisoryU.S. Department of Transportation Federal Aviation Administration Circular

SUBJECT: Estimated Airplane Noise Date: 05/25/2012 AC No: 36-3H Levels in A-Weighted Decibels Initiated by: AEE-100 Change 1

1. Purpose.

a. This Advisory Circular (AC) publishes needed changes to the existing AC material as a result of additions of certificated aircraft noise levels submitted since the AC was published.

b. This change revises Appendix l(TO), Estimated Maximum A-Weighted Sound Levels Measured in Accordance with Part 36 Appendix-C Procedures (Takeoff), Appendix l(APP), Estimated Maximum AWeighted Sound Levels Measured in Accordance with Part 36 Appendix-C Procedures (Approach), Appendix 2, Estimated Maximum A-Weighted Sound Levels Measured in Accordance with Part 36 Appendix-C Procedures, and Reference Notes.

c. The change number and the date ofthe changed material are shown at the top of each page in Appendix l(TO), Appendix 1 (APP), and Appendix 2.

2. Principal Changes. Appendix l(TO), Appendix 1 (APP), Appendix 2, and Reference Notes.

3. Website Availability. To access this AC electronically, go to http://www.faa.gov/regulations_policies/advisory_circulars/

PAGE CONTROL CHART Remove Pages Dated Appendix 1 1T thru 33T 04/25/2002 Appendix 1 1T thru 37T 04/05/2012 Appendix 1 1A and 43A 04/25/2002 Appendix 1 1A thru 48A 04/05/2012 Appendix 2 1 thru 45 04/25/2002 Appendix 2 1 thru 53 04/05/2012 Reference Notes 2 04/25/2002 Reference 2 04/05/2012 Insert Pages Dated

t~ Advisory

u.s. Department of Transportation Circular Federal Aviation Administration Subject: Date:

Initiated by:

4/25/02 AEE-100 AC No: 36-3H Change:

ESTIMATED AIRPLANE NOISE LEVE

IN A-WEIGHTED DECWELS LS

1. Purpose. This circular provides listings of estimated airplane noise levels in units of A-weighted sound level in decibels (dBA), ranked in descending order for the conditions and assumptions described below. This information is provided both for aircraft that have been noise type certificated under 14 CFR part 36, and for aircraft for which no such requirement currently exists.

2. Cancellation. Advisory Circular 36-3G, Estimated Airplane Noise Levels in A-Weighted Decibels, dated April 2, 1996, is canceled.

3. Background. 14 CPR part 36 requires the reporting of turbojet and large transport category aircraft certificated noise levels in units of Effective Perceived Noise Level in decibels (EPNdB).

Many airport and other community noise analyses utilize a noise rating scale that is based upon A-weighted decibels. For this reason, A-weighted noise levels for aircraft under 14 CFR part 36 conditions have been estimated to provide a reference source for aircraft noise levels that is consistent with the many noise rating scales having A-weighted noise level as the basic measure.

4. Noise Levels.

(a) A-weighted noise levels were estimated for each airplane as they might occur during type certification tests conducted under Appendices A, B, and C of 14 CFR part 36. However, it should be specifically noted that the reported levels are estimates and do not represent actual certificated values. This is because certification data are reported to the Federal Aviation Administration (FAA) in EPNdB for large transport category airplanes and turbojet powered aircraft. Where possible, the levels in dBA were estimated from certification data. Further, since 14 CFR part 91, Section 126(c) requires turbojet powered aircraft to use minimum certificated landing flap settings, noise levels for approaches at less than maximum flaps are listed for many turbojet aircraft.

(b) Propeller-driven small airplanes and commuter category airplanes are certificated in A-weighted noise level, however the certification flight procedure differs from that used for 14 CFR part 36, Appendix C noise certification. In addition, 14 CFR part 36 does not require approach noise tests for noise certification of propeller-driven small airplanes and commuter category airplanes. Therefore, the propeller-driven small airplane and commuter category airplane noise levels contained in this circular were also estimated.

FAA Form 1320-15 (4-82) Supersedes WA Fonn 1320-2

(c) The listings of the various certificated and uncertificated airplanes include tabulations of their noise levels at maximum takeoff and landing gross weights. Noise level estimates are provided at 14 CFRpart 36, Appendix C positions (6,500 meters from start of takeoff roll, and 2,000 meters from the runway threshold for approach).

(d) Since the noise levels are estimated as they might occur during type certification tests conducted under Appendix C of 14 CFR part 36, these values are intended to provide a consistent basis for comparison of noise levels of major aircraft models rather than establishing absolute levels of individual aircraft. The noise levels of individual aircraft may also differ due to variations in weight and operating procedures from those used during certification. For instance, takeoff noise levels are reduced substantially as aircraft takeoff weight is reduced. Takeoffweights during normal in-service operations are often less than the maximum certificated weight. In general, for equal application of noise control technology, the lower the maximum weight of an airplane the lower the noise level.

Conversely, those aircraft normally associated with high weight, long range operation and, therefore, greater productivity, have higher noise levels and will appear predominantly at the top of the list. This aspect of increasing noise levels with increasing weight is embodied in the noise type certification requirements of 14 CFR part 36. The takeoff noise level is also dependent on which operating procedures are applied. The takeoff noise level estimates in the table(s) in this Advisory circular represent full thrust conditions for some aircraft and a reduced thrust condition, as permitted by 14 CFR part 36, for other aircraft. Neither of these conditions may be representative of the in-service operation of a particular aircraft at a particular airport. Similarly, approach noise levels are given for maximum landing weight. However, as Federal Aviation Regulations require turbojet powered aircraft to use the minimum certificated landing flap setting for normal approaches rather than the maximum certificated flap setting (the configuration that is most critical from a noise standpoint), estimates of approach noise levels with reduced flap settings have been included for many of these aircraft. An asterisk (*) next to the flap setting indicates less than maximum flaps. Variations in the absolute value of the noise estimates presented in this circular, for individual flights at actual airports, will occur when operating conditions do not conform with those corresponding to noise certification. However, the FAA believes that the ranking of aircraft noise levels that occur under uniform certification conditions provides the best information currently available on the relative noisiness of airplanes over a wide variety of conditions.

(e) In addition to the Appendix 1 listing of noise levels in order of descending magnitude, this Advisory Circular also provides the same data listed by aircraft manufacturer. This list, contained in Appendix 2, is presented as a convenience in locating data on specific airplanes.

(f) While these listings provide data on a wide variety of airplane types and models within types, other specific model designations (often peculiar to just one carrier) may not be shown. Thus, for example a Boeing 727-232 is not listed, but the equivalent data for a Boeing 727-200 with the proper engine should be used. Similarly, data for a McDonnell-Douglas DC-I0-30 should be used for other models of the DC-l 0-30 series of aircraft.

(g) The FAA's Integrated Noise Model (INM) computer program may be useful in providing more detailed noise predictions for aircraft as they are actually flown. Further, the INM can provide Page 2

4/25/02 AC36-3H predictions of noise levels at other locations which may be of greater interest to a particular community.

5. Noise Level Estimation Procedure.

Noise level estimation procedures utilized in this revision are outlined below:

(a) The results of FAA noise measurement and assessment programs have been used to establish noise levels for certain aircraft. Reference note 10 identifies these aircraft.

(b) Noise levels for certain light propeller driven aircraft have been computed using primary reference data (either from Pilot Operating Handbooks or direct from the manufacturer) as input to the noise level estimation procedure outlined in Report FAA-EE-S2-1. This procedure considers both propeller and engine noise components for reciprocating engine aircraft takeoff and approach operations. Noise levels estimated using this procedure are identified in this document by Reference note 11.

(c) In the case of certain general aviation jet aircraft, the appropriate maximum noise level one-third-octave frequency spectrum has been obtained from 14 CFR part 36 certification reports. The A-weighted sound level has been computed for each spectrum. Noise level estimates established using this procedure are identified by Reference note 12.

(d) The noise levels of certain other general aviation jet aircraft included in this report have been converted to A-weighted sound level from EPNL certification data using conversion factors derived for specific engine types. The details of the procedure are outlined in Report FAA-EE-S2-1.

Data appearing in this Advisory Circular derived using the above conversion technique are identified by Reference note 13.

(e) The noise levels of certain large jet aircraft included in this Advisory Circular have been derived from 14 CFR part 36 certification EPNL values using the FAA INM. Data appearing in this document derived using the INM procedure are identified by Reference note 14.

(t) The noise levels of certain large jet aircraft have been derived from data provided to the FAA directly by aircraft manufacturers. Data appearing in this document derived from such sources are identified by Reference note 15.

The FAA welcomes substantive discussion on any estimate in this document. Readers are encouraged to present data and alternative assumptions which they feel provide or lead to more accurate estimates of noise levels. Any person wishing to provide input to subsequent revisions of this AC are encouraged to write the Manager, Noise Division (ABE-I00), Office of Environment and Energy, Federal Aviation Administration, SOO Independence Ave., SW, Washington, DC 20591.

AC36-3H 4/25/02

6. Distribution.

Requests for additional copies of this Advisory Circular should be sent to:

u.s. Department of Transportation Subsequent Distribution Office Ardmore East Business Center 3341 Q 75th Avenue Landover,NUO 20785 Requests to be placed on the mailing list to receive future revisions of this Advisory Circular should be sent to:

U.S. Department of Transportation Distribution Requirements Section SVC-121.21 Washington, DC 20590.

7. Revisions. The airplane noise level listings in this Advisory Circular will be revised and updated periodically.

. ctor of Environment and Energy Page 4

APPENDIX 1, CHANGE 1

ESTIMATED MAXIMUM A-WEIGHTED SOUND LEVELS

MEASURED IN ACCORDANCE WITH PART-36 APPENDIX -C- PROCEDURES

***TAKEOFF***

TOGW MANUFACTURER AIRPLANE ENGINE 1000 LBS EST dBA FLAPS NOTES CONCORDE CONCORDE O-593/M-602 400.00 112.9 - 4,8 BOEING B-747-100 JT9D-7F 750.00 100.5 10 4,6 BOEING B-747-100 JT9D-7FWET 750.00 100.5 10 4,6 BOEING B-747-200 JT9D-3A 767.00 100.5 10 4,6 BOEING B-747-100 JT9D-7WET 750.00 100.2 10 4,6 BOEING B-747-200 JT9D-7FWET 805.00 99.9 10 4,6 BOEING B-747-200 JT9D-3AWET 773.00 99.6 10 4,6 BOEING B-747-200 JT9D-7 770.00 99.4 10 4,6 BOEING B-747-200 JT9D-7WET 785.00 99.3 10 4,6 BOEING B-747-100 JT9D-7 710.00 99.1 10 4,6 BOEING B-747-200 JT9D-7F 775.00 99.1 10 4,6 BOEING B-747-200/300 RB211-524C2 833.00 99.1 10 15 MCDONNELL DOUG. DC-10-30 CF6-50C1 590.00 96.4 6 15 BOEING B-747-SP JT9D-7FWET 695.00 96.2 10 4,6 BOEING B-747-SP JT9D-7A 690.00 96.1 10 4,6 BOEING B-747-200 RB211-524B 800.00 96.0 10 4 BOEING B-747-200/300 RB211-524C2 775.00 95.7 10 15 MCDONNELL DOUG. DC-10-30 CF6-50A 565.00 95.7 8 15 BOEING B-747-SP JT9D-7A 660.00 94.9 10 4,6 BOEING B-747-SP JT9D-7F 660.00 94.9 10 4,6 MCDONNELL DOUG. DC-10-30 CF6-50C1 572.00 94.6 10 15 BOEING B-747-200 JT9D-70A 820.00 94.1 10 4 MCDONNELL DOUG. DC-10-30 CF6-50C 565.00 94.1 10 15 BOEING B-707-300B/C (COMTRAN QN) JT3D-3B 322.30 94.0 14 8 BOEING B-747-200/300 RB211-524D4 833.00 93.9 10 8,15 MCDONNELL DOUG. DC-10-30 CF6-50C1 562.00 93.9 10 15 BOEING B-747-SR JT9D-7A 610.00 92.9 10 4,6 PAGE 1T

AC36-3H 4/5/2012 APPENDIX 1, CHANGE 1

ESTIMATED MAXIMUM A-WEIGHTED SOUND LEVELS

MEASURED IN ACCORDANCE WITH PART-36 APPENDIX -C- PROCEDURES

***TAKEOFF*** TOGW MANUFACTURER AIRPLANE ENGINE 1000 LBS EST dBA FLAPS NOTES BOEING B-727-200 JT8D-17RQN 208.00 92.6 5 2,8,15 BOEING B-727-200 JT8D-17QN 203.10 92.2 5 2,8,14,15 BOEING B-747-200/300 CF6-50E 833.00 92.2 10 8,15 BOEING B-747-200/300 CF6-50E2 833.00 92.2 10 8,15 BOEING B-747-100 CF6-45A2 767.00 92.0 10 8,15 BOEING B-747-100 CF6-50E2 750.00 92.0 10 8,15 MCDONNELL DOUG. DC-10-40 JT9D-59A 572.00 91.8 10 15 MCDONNELL DOUG. DC-08-63 (ADC QN) JT3D-3B 355.00 91.7 12 8,15 MCDONNELL DOUG. DC-10-40 JT9D-20 530.00 91.7 10 15 MCDONNELL DOUG. DC-10-30 CF6-50A 519.60 91.4 8 15 MCDONNELL DOUG. DC-08-62 (BAC/BACII) JT3D-3B 348.00 91.1 12 8,15,16 MCDONNELL DOUG. DC-08-63F (ADC QN) JT3D-7 355.00 91.0 12 8,15 BOEING B-747-400 RB211-524G 875.00 90.8 10 8,15 MCDONNELL DOUG. DC-10-40 JT9D-59A 555.00 90.6 10 15 AIRBUS UK 1-11-400 SPEY-MK511 89.50 90.5 8 8,15 AIRBUS UK 1-11-500 SPEY-MK512 104.50 90.5 8 4 MCDONNELL DOUG. DC-08-63 (TNC QN) JT3D-3B 350.00 90.5 12 8,15 BOEING B-727-200 JT8D-9QN 184.80 90.4 5 2,8,14,15 BOEING B-747-400F RB211-524G 875.00 90.4 10 8,15 MCDONNELL DOUG. DC-08-50 (QNC QN) JT3D-3B 309.80 90.3 - 8,12 MCDONNELL DOUG. DC-08-61 (QNC QN) JT3D-3B 309.80 90.3 - 8,12 BOEING B-747-200/300 RB211-524D4 775.00 90.2 10 8,15 BOEING B-747-SR JT9D-7A 570.00 90.0 10 4,6 MCDONNELL DOUG. DC-08-62 (BAC/BACII) JT3D-3B 335.00 90.0 12 8,15,16 MCDONNELL DOUG. DC-08-62 (BAC/R1) JT3D-3B 350.00 90.0 12 8,15,16 AIRBUS UK 1-11-500 SPEY-MK512 99.70 89.9 8 4 BOEING B-727-200 JT8D-17RQN 197.00 89.9 5 2,8,15 PAGE 2T

APPENDIX 1, CHANGE 1

ESTIMATED MAXIMUM A-WEIGHTED SOUND LEVELS

MEASURED IN ACCORDANCE WITH PART-36 APPENDIX -C- PROCEDURES

***TAKEOFF***

TOGW MANUFACTURER AIRPLANE ENGINE 1000 LBS EST dBA FLAPS NOTES BOEING B-747-400 PW4056 PKG A (FB2T) 875.00 89.8 10 8,15 IAI 1121 COMMODORE CJ610-5 18.50 89.7 - 4 IAI 1123 WESTWIND CJ610-9 20.70 89.7 - 4 MESSERSCHMITT HFB-320 HANSA CJ610-9 20.30 89.7 - 13 BOEING B-747-200/300 CF6-50E2 775.00 89.6 10 8,15 MCDONNELL DOUG. DC-08-63 (TNC QN) JT3D-7 355.00 89.6 12 8,15 BOEING B-747-200/300 CF6-50E 775.00 89.4 10 8,15 BOEING B-747-400F PW4056 PKG A (FB2T) 875.00 89.4 10 8,15 MCDONNELL DOUG. DC-08-63 (BAC/BACII) JT3D-7 353.00 89.2 12 8,15,16 MCDONNELL DOUG. DC-08-63 (BAC/R1) JT3D-7 355.00 89.2 12 8,15,16 BOEING B-727-200 (Fed Ex) JT8D-9 189.20 89.1 8,15,25,28 BOEING B-727-200 JT8D-15QN 190.50 89.0 5 2,8,14,15 BOEING B-747-400 RB211-524H 875.00 89.0 10 8,15 BOEING B-747-400F RB211-524H 875.00 89.0 10 8,15 MCDONNELL DOUG. DC-08-61 (BAC/BAC II) JT3D-3B 325.00 88.8 15 8,15,16 MCDONNELL DOUG. DC-08-62 (BAC/BACII) JT3D-7 350.00 88.8 12 8,15,16 MCDONNELL DOUG. DC-08-62 (BAC/R1) JT3D-3B 335.00 88.8 12 8,15,16 MCDONNELL DOUG. DC-10-30 CF6-6K 455.00 88.8 - 15 LOCKHEED 1329 JETSTAR JT12A-8 42.00 88.7 - 8,13 BOEING B-727-200 JT8D-17QN 190.50 88.5 5 2,8,14,15 BOEING B-727-200 (Fed Ex) JT8D-17 199.50 88.5 8,15,25,28 MCDONNELL DOUG. DC-10-10 CF6-6D 440.00 88.5 5 15 MCDONNELL DOUG. DC-09-50 JT8D-15 121.00 88.4 - 1,8,15 MCDONNELL DOUG. DC-10-40 JT9D-20 484.00 88.4 10 15 MCDONNELL DOUG. DC-09-30 JT8D-17 121.00 88.2 - 1,8,15 MCDONNELL DOUG. DC-09-50 JT8D-17 121.00 88.2 - 1,8,15 BOEING B-727-200 JT8D-7QN 172.50 88.0 5 2,8,15 PAGE 3T

AC36-3H 4/5/2012 APPENDIX 1, CHANGE 1

ESTIMATED MAXIMUM A-WEIGHTED SOUND LEVELS

MEASURED IN ACCORDANCE WITH PART-36 APPENDIX -C- PROCEDURES

***TAKEOFF*** TOGW MANUFACTURER AIRPLANE ENGINE 1000 LBS EST dBA FLAPS NOTES BOEING B-727-200 (Fed Ex) JT8D-7 178.00 88.0 8,15,24,29 BOEING B-737-200 JT8D-15QN 117.00 88.0 1 2,8,15 BOEING B-737-200 JT8D-9QN 117.00 88.0 1 2,8,14,15 BOEING B-747-400F CF6-80C2B1F W/N1 MOD 875.00 88.0 10 8,15 BOEING B-747-400F RB211-524G 830.00 88.0 10 8,15 BOEING B-747-400 CF6-80C2B1F 875.00 87.9 10 8,15 BOEING B-747-400 CF6-80C2B1F W/N1 MOD 875.00 87.9 10 8,15 BOEING B-747-400 RB211-524G 820.00 87.9 10 8,15 SABRELINER CORP. SABRE 70 JT12A-8 21.00 87.9 - 8,12 MCDONNELL DOUG. DC-08-62 (BAC/BACII) JT3D-7 335.00 87.8 12 8,15,16 MCDONNELL DOUG. DC-08-62 (BAC/R1) JT3D-7 335.00 87.8 12 8,15,16 BOEING B-747-400 PW4056 PHASE 3 (FB2B) 875.00 87.6 10 8,15 AIRBUS UK 1-11-400 MK511-W/HUSHKIT 89.50 87.5 8 15 BOEING B-727-200 JT8D-15QN 184.20 87.5 5 2,8,14,15 BOEING B-747-400 PW4056 PHASE 1/PKG B 875.00 87.5 10 8,15 BOEING B-747-400F CF6-80C2B1F 875.00 87.5 10 8,15 MCDONNELL DOUG. DC-09-40 JT8D-11 114.00 87.5 - 1,8,15 BOEING B-737-200 JT8D-17QN 122.50 87.3 1 2,8,14,15 BOEING B-747-400 PW4056 PHASE 3 (FB2C) 875.00 87.3 10 8,15 BOEING B-727-200 (Fed Ex) JT8D-17 190.50 87.2 8,15,25,28 MCDONNELL DOUG. DC-10-30 CF6-50C2 590.00 87.2 15 8,15 LOCKHEED L-1011-1 RB211-22C 430.00 87.1 10 MCDONNELL DOUG. DC-09-30 JT8D-7 108.00 87.1 - 8,15 BOEING B-727-200 (Fed Ex) JT8D-15 190.50 87.0 8,15,25 BOEING B-737-200 JT8D-9QN 114.50 87.0 1 2,8,14,15 BOEING B-747-200/300 CF6-80C2B1F 833.00 86.9 10 8,15 LOCKHEED L-1011-1 RB211-22C 422.00 86.9 10 PAGE 4T

APPENDIX 1, CHANGE 1

ESTIMATED MAXIMUM A-WEIGHTED SOUND LEVELS

MEASURED IN ACCORDANCE WITH PART-36 APPENDIX -C- PROCEDURES

***TAKEOFF***

TOGW MANUFACTURER AIRPLANE ENGINE 1000 LBS EST dBA FLAPS NOTES BOEING B-727-100 (Fed Ex) JT8D-7 174.50 86.8 8,15,16,28 BOEING B-747-400D CF6-80C2B1F W/N1 MOD 833.00 86.8 10 8,15 BOEING B-727-200 JT8D-9QN 172.50 86.7 5 2,8,14,15 BOEING B-747-400 PW4056 PKG A (FB2T) 820.00 86.7 10 8,15 BOEING B-747-400F PW4056 PKG A (FB2T) 830.00 86.7 10 8,15 BOEING B-747-400F RB211-524H 830.00 86.7 10 8,15 MCDONNELL DOUG. DC-10-30 CF6-50C2B 590.00 86.7 - 8,15 BOEING B-727-200 (Fed Ex) JT8D-7 172.60 86.6 8,15,24,29 MCDONNELL DOUG. DC-09-30 JT8D-9 108.00 86.5 - 8,15 BOEING B-747-400 RB211-524H 820.00 86.3 10 8,15 BOEING B-747-400D CF6-80C2B1F 833.00 86.3 10 8,15 BOEING B-747-400F PW4056 FB2B/2C 875.00 86.3 10 8,15 MCDONNELL DOUG. DC-09-30 JT8D-9 110.00 86.3 - 1,8,15 BOEING B-727-100 JT8D-7FCD 169.50 86.1 5 3,8,14,15 BOEING B-747-200/300 CF6-80C2B1F 820.00 86.1 10 8,15 BOEING B-747-400 PW4056 PHASE 3 (FB2C) 875.00 86.1 10 8,15,23 BOEING B-727-200 (Fed Ex) JT8D-9 173.88 86.0 8,15,24,28 GENERAL DYNAMICS CV-440 R-2800 48.00 86.0 - 5 MCDONNELL DOUG. DC-09-50 JT8D-17 115.00 85.9 - 1,8,15 AIRBUS UK 1-11-200 SPEY-MK506 80.00 85.8 8 15 BOEING B-737-200 JT8D-7QN 109.00 85.8 1 2,8,14 MCDONNELL DOUG. DC-09-30 JT8D-15 114.00 85.8 - 1,8,15 MCDONNELL DOUG. DC-09-40 JT8D-15 114.00 85.8 - 1,8,15 BOEING B-747-400F CF6-80C2B1F W/N1 MOD 830.00 85.6 10 8,15 MCDONNELL DOUG. DC-08-72 CFM56-2-C1 362.50 85.6 12 BOEING B-727-200 (Fed Ex) JT8D-9 165.60 85.5 8,15,24,28 MCDONNELL DOUG. DC-09-30 JT8D-7 108.00 85.5 - 1,8,15 PAGE 5T

AC36-3H 4/5/2012 APPENDIX 1, CHANGE 1

ESTIMATED MAXIMUM A-WEIGHTED SOUND LEVELS

MEASURED IN ACCORDANCE WITH PART-36 APPENDIX -C- PROCEDURES

MANUFACTURER MCDONNELL DOUG.

AIRPLANE DC-09-30 ENGINE ***TAKEOFF*** JT8D-9 TOGW 1000 LBS

108.00 EST dBA

85.4 FLAPS - NOTES 1,8,15 LOCKHEED L-1011-1 RB211-22C 416.00 85.3 10 8 MCDONNELL DOUG. DC-10-10 CF6-6D1 440.00 85.3 8 15 RAYTHEON HAWKER 125- 400A VIPER-522 23.60 85.3 8,15 BOEING B-727-100 (Fed Ex) JT8D-7 160.50 85.2 8,15,16,28 BOEING B-727-200 (Fed Ex) JT8D-9 175.00 85.2 8,15,24,29 BOEING BOEING B-727-200 RE (ROHR STC SA4363NM) B-737-200 JT8D-217C/JT8D-15 JT8D-15QN

209.42

115.50

85.2

85.2 5 1 8,15,37,47 2,8,15 BOEING B-747-400 CF6-80C2B1F 820.00 85.2 10 8,15 BOEING B-747-400 CF6-80C2B1F W/N1 MOD 820.00 85.2 10 8,15 BOEING B-747-400F CF6-80C2B1F 830.00 85.2 10 8,15 LOCKHEED L-1011-1 RB211-22C 396.00 85.2 10 4,8 MCDONNELL DOUG. DC-10-10 CF6-6D 410.00 85.2 14 15 BOEING

LOCKHEED B-727-200 RE (ROHR STC SA4363NM) L-1011 JT8D-217C/JT8D-17 RB211-22B

209.50

430.00

85.1

85.1 5 14 8,15,37,48 4,5 BOEING B-727-100 JT8D-9FCD 169.50 85.0 5 3,8,15 BOEING B-777-300 RR TRENT 884 660.00 85.0 5 8,15 DOUGLAS DC-3 R-1830-90C 25.20 85.0 - 5 MCDONNELL DOUG. DC-10-40 JT9D-20 430.00 85.0 10 15 BOEING B-737-200 JT8D-9QN 109.00 84.8 1 2,8,14,15 MCDONNELL DOUG. DC-09-40 JT8D-11 107.00 84.8 - 1,8,15 RAYTHEON HAWKER 125- 3A/R VIPER-522 22.70 84.8 - 8,15 RAYTHEON HAWKER 125- 3A/RA VIPER-522 22.70 84.8 8,15 LEARJET LEARJET 23 CJ610-1 12.50 84.7 - 4,8 SABRELINER CORP. SABRE 60 JT12A-8 20.10 84.7 - 8,12 BOEING B-737-200 JT8D-17QN 115.50 84.5 1 2,8,14,15 BOEING B-747-400 PW4056 PHASE 3 (FB2B) 820.00 84.5 10 8,15 PAGE 6T

APPENDIX 1, CHANGE 1

ESTIMATED MAXIMUM A-WEIGHTED SOUND LEVELS

MEASURED IN ACCORDANCE WITH PART-36 APPENDIX -C- PROCEDURES

***TAKEOFF***

TOGW MANUFACTURER AIRPLANE ENGINE 1000 LBS EST dBA FLAPS NOTES MCDONNELL DOUG. DC-10-30 CF6-50C2 555.00 84.4 10 8,15 BOEING B-747-400 PW4056 PHASE 1/PKG B 820.00 84.3 10 8,15 MCDONNELL DOUG. DC-09-50 JT8D-15 110.00 84.3 - 1,8,15 GULFSTREAM GULFSTREAM II SPEY MK511-8 65.50 84.2 10 8,15,16 AIRBUS UK 1-11-200 MK506-W/HUSHKIT 80.00 84.1 8 BOEING B-747-400 PW4056 PHASE 3 (FB2C) 820.00 84.1 10 8,15 MCDONNELL DOUG. DC-08-71 CFM56-2-C1 337.00 84.1 15 SABRELINER CORP. SABRE 60A JT12A-8 22.70 83.8 - 8,12 BOEING B-727-100 JT8D-7FCD 160.50 83.7 5 3,8,14,15 BOEING B-747-400F PW4056 FB2B/2C 830.00 83.7 10 8,15 MCDONNELL DOUG. MD-80 JT8D-217A 160.00 83.7 2 8,15 MCDONNELL DOUG. DC-10-30 CF6-50C2B 555.00 83.6 5 8,15 SABRELINER CORP. SABRE 40A JT12A-8 19.60 83.4 - 8,12 BOEING B-777-300 PW4090 660.00 83.3 5 8,15,59 BOEING B-747-400 PW4056 PHASE 3 (FB2C) 820.00 83.2 10 8,15,23 MCDONNELL DOUG. MD-80 JT8D-209 149.50 83.2 0 8,15 BOEING B-727-200 RE (ROHR STC JT8D-217C/JT8D-9 198.50 83.1 5 8,15,37,46 SA4363NM) MCDONNELL DOUG. MD-80 JT8D-217C 160.00 83.1 2 8,15 RAYTHEON HAWKER 125- 1A VIPER-522 21.20 83.1 - 8,15 BOEING B-777-300 RR TRENT 892 660.00 82.9 5 8,15 BOEING B-727-200 RE (ROHR STC JT8D-217C/JT8D-17A 203.10 82.8 5 8,15,37 SA4363NM) GULFSTREAM GULFSTREAM IIB/GIII SPEY MK511-8 69.70 82.8 10 8,15,16 LEARJET LEARJET 25B/C CJ610-6 15.00 82.8 20 4,8,18 BOEING B-767-300/300ER RB211-524G 407.00 82.6 5 8,15 GULFSTREAM GULFSTREAM II SPEY MK511-8 62.00 82.6 - 8,15 MCDONNELL DOUG. DC-10-30 CF6-6K 410.00 82.6 - 8,15 BOEING B-777-200 RR TRENT 884 632.50 82.5 5 8,15 PAGE 7T 15