# AD 83-17-06: Aileron Balance Weights - Type: Airworthiness directive - Status: Current - Products: Flap actuated aileron droop system (Sierra Industries STC SA1382WE or 5 others) - Effective: September 1, 1983 - Superseded by: Nothing supersedes this AD - Product type: Aircraft, Small airplane - Amendment: 39-4716 - Registered aircraft: 37,488 may be affected, by airframe or engine model (OpenAirDocs) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E3038964F91329F7862569B9004D123A.0001 - DRS record last changed: May 30, 2024 - Page: https://openairdocs.org/ad/83-17-06 ## The airworthiness directive 83-17-06 CESSNA: Amendment 39-4716. Applies to Models 180 through 180H, 180J and 180K airplanes, modified per Robertson STC SA1435WE; 150D through 150L airplanes, modified per Robertson STC SA2191WE; 150D through 150L airplanes, modified per Robertson STC SA2192WE; 185, 185A through 185E, A185E and A185F airplanes, modified per Robertson STC SA1441WE; 182 through 182R, R182, T182 and TR182 airplanes, modified per Robertson STC SA1382WE; and 172, 172A through 172P airplanes, modified per Robertson STC SA1689WE airplanes certificated in any category. Compliance: Required within the next 50 hours time-in-service after the effective date of this AD, unless already accomplished. To prevent possible destructive aileron flutter, accomplish the following: a) Check the permanent aircraft records of the airplane to determine if it has been modified per the applicable STC at Robertson Aircraft Corporation Repair Station No. 415-23 prior to August 1, 1983. If not, no furtheraction is necessary. If, modified at this facility before this date, inspect and, if necessary, correct the aileron balance weight installation in accordance with paragraph b) of this AD. b) Measure the height of all aileron balance weights. If the measured height of all weights is approximately 3/4 inch, the weights are correctly installed and no further action is necessary. If the measured height of any weight is approximately 1/2 inch, prior to further flight, install new balance weights of the appropriate part number in accordance with the applicable STC data or Robertson Service Bulletin No. 20. Rebalance the ailerons within the limits specified by the Cessna Aircraft Company Service Manual for the airplane involved. c) Airplanes may be flown in accordance with FAR 21.197 to a location where this AD may be accomplished. d) An equivalent method of compliance with this AD may be used if approved by the Manager, Seattle Aircraft Certification Office, FAA, NorthwestMountain Region, 9010 East Marginal Way South, Seattle, Washington 98168. This amendment becomes effective on September 1, 1983. ## Affected data sheets (5) (OpenAirDocs) The type certificate data sheets whose models the AD names. - [TCDS 3A13](https://openairdocs.org/tcds/3A13): Textron Aviation Inc.; names 20 of 23 models: 182D, 182A, 182J, 182P, 182B, TR182, 182L, 182G… - [TCDS 3A12](https://openairdocs.org/tcds/3A12): Textron Aviation Inc.; names 15 of 18 models: 172F (USAF T-41A), 172M, 172K, 172G, 172A, 172L, 172, 172H (USAF T-41A)… - [TCDS 5A6](https://openairdocs.org/tcds/5A6): Textron Aviation Inc.; names 11 of 11 models: 180E, 180J, 180F, 180H, 180A, 180, 180B, 180D… - [TCDS 3A19](https://openairdocs.org/tcds/3A19): Textron Aviation Inc.; names 8 of 18 models: 150L, 150D, 150E, 150K, 150G, 150J, 150H, 150F - [TCDS 3A24](https://openairdocs.org/tcds/3A24): Textron Aviation Inc.; names 8 of 8 models: 185B, A185F, 185E, 185C, A185E, 185A, 185D, 185 ## Registered aircraft it may apply to (OpenAirDocs) Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment. - Aircraft: 37,488 (37,488 by airframe model, 0 by engine model) - Makers: Cessna 37,485, Cessna Wren 3 Models with the most aircraft: - [Cessna 172M](https://openairdocs.org/model/cessna-172m): 3,573 aircraft (airframe model) - [Cessna 172N](https://openairdocs.org/model/cessna-172n): 3,138 aircraft (airframe model) - [Cessna 182P](https://openairdocs.org/model/cessna-182p): 2,099 aircraft (airframe model) - [Cessna 172](https://openairdocs.org/model/cessna-172): 1,805 aircraft (airframe model) - [Cessna 182Q](https://openairdocs.org/model/cessna-182q): 1,565 aircraft (airframe model) - [Cessna 150L](https://openairdocs.org/model/cessna-150l): 1,447 aircraft (airframe model) - [Cessna 180](https://openairdocs.org/model/cessna-180): 1,177 aircraft (airframe model) - [Cessna 172P](https://openairdocs.org/model/cessna-172p): 1,111 aircraft (airframe model) - [Cessna A185F](https://openairdocs.org/model/cessna-a185f): 1,109 aircraft (airframe model) - [Cessna 150F](https://openairdocs.org/model/cessna-150f): 1,063 aircraft (airframe model) - [Cessna 172K](https://openairdocs.org/model/cessna-172k): 1,026 aircraft (airframe model) - [Cessna 150G](https://openairdocs.org/model/cessna-150g): 977 aircraft (airframe model) - [Cessna 172L](https://openairdocs.org/model/cessna-172l): 857 aircraft (airframe model) - [Cessna 182A](https://openairdocs.org/model/cessna-182a): 784 aircraft (airframe model) - [Cessna 172H](https://openairdocs.org/model/cessna-172h): 780 aircraft (airframe model) - [Cessna 150H](https://openairdocs.org/model/cessna-150h): 756 aircraft (airframe model) - [Cessna 172G](https://openairdocs.org/model/cessna-172g): 722 aircraft (airframe model) - [Cessna 172F](https://openairdocs.org/model/cessna-172f): 717 aircraft (airframe model) - [Cessna R182](https://openairdocs.org/model/cessna-r182): 706 aircraft (airframe model) - [Cessna 150J](https://openairdocs.org/model/cessna-150j): 659 aircraft (airframe model) All 66 models: https://openairdocs.org/ad/83-17-06/models.md Every aircraft: https://openairdocs.org/ad/83-17-06/aircraft.md ## Related documents - [STC SA1382WE](https://openairdocs.org/stc/SA1382WE): Installation of flap actuated aileron droop system.. Sierra Industries Ltd., Named in the applicability - [STC SA1435WE](https://openairdocs.org/stc/SA1435WE): Installation of drooped ailerons in flaps down mode, recontoured wing leading edge, except 180J and K, actuated elevator trip system and installation of SC-100 stall warning system. (180, A, B, C, D, E, F, G, H, J, K LANDPLANE; FLOATPLANE AND AMPHIBIAN). Sierra Industries Ltd., Named in the applicability - [STC SA1441WE](https://openairdocs.org/stc/SA1441WE): Installation of drooped ailerons in flaps down mode, recontoured wing leading edge (except A185F) stall fence, flap actuated elevator trim system and installation of SC-100 stall warning system. (A185F LANDPLANE; FLOATPLANE; AMPHIBIAN; SKIPLANE). Sierra Industries Ltd., Named in the applicability - [STC SA1689WE](https://openairdocs.org/stc/SA1689WE): Installation of drooped ailerons in flaps down mode, contoured wing leading edge and wing stall fences. (172A, B, C, D, E, F, G, H, K, L, M, N, P LANDPLANES AND FLOAT-PLANES) (172 LANDPLANES ONLY). Sierra Industries Ltd., Named in the applicability - [STC SA2191WE](https://openairdocs.org/stc/SA2191WE): Installation of recontoured wing leading edge, stall fences, and drooped ailerons in flaps down mode.. Sierra Industries Ltd., Named in the applicability - [STC SA2192WE](https://openairdocs.org/stc/SA2192WE): Installation of recontoured wing leading edge, stall fences, and drooped ailerons in flaps down mode.. Sierra Industries Ltd., Named in the applicability --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.