# AD 86-17-01: Ammeter Replacement - Type: Airworthiness directive - Status: Current - Products: Piper PA-28-150, PA-28-160, PA-28-180, PA-28-181, PA-28-201T, PA-28-235, PA-28-236, PA-28R-180, PA-28R-200, PA-28R-201, PA-28R-201T, PA-28RT-201 and 11 more - Effective: August 21, 1986 - Published: August 14, 1986 - Issued: August 6, 1986 - Superseded by: Nothing supersedes this AD - Product type: Aircraft, Small airplane - Amendment: 39-5393 - Registered aircraft: 16,143 may be affected, by airframe or engine model (OpenAirDocs) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DD818FBEA56E10C3862569A6005C9DBB.0001 - DRS record last changed: November 21, 2025 - Page: https://openairdocs.org/ad/86-17-01 ## The airworthiness directive 86-17-01 PIPER AIRCRAFT CORPORATION: Amendment 39-5393. Applies to the following Piper models and serial numbers certificated in any category except those airplanes equipped with ninety (90) ampere alternators: MODELS AFFECTED: SERIAL NUMBERS AFFECTED PA-28-150/160 Cherokee 28-3378 thru 28-4377 PA-28-180 Archer 28-3378 thru 28-7505259 and 28-E13 PA-28-181 Archer II 28-7690001 thru 28-8190279, 28-8290017, 28-8290018, 28-8290028, 28-8290033, 28-8290034 and 28-8290036 PA-28-235 Cherokee 28-10720 thru 28-7710089 and 28-E11 PA-28-236 Dakota 28-7911001 thru 28-8511020 PA-28-201T Turbo Dakota 28-7921001 thru 28-7921091 PA-28R-180 Arrow I 28R-30004 thru 28R-30481, 28R-30483 thru 28R-7130013 PA-28R-200 Arrow II 28R-30482, 28R-35001 thru 28R-7635545 PA-28R-201 Arrow III 28R-7737001 thru 28R-7837317 PA-28R-201T Turbo Arrow III 28R-7703001 thru 28R-7803373 PA-28RT-201 Arrow IV 28R-7918001 thru 28R-8218026 PA-28RT-201T Turbo Arrow IV 28R-7931001 thru 28R-8631006 PA-32-260 Cherokee 32-1 thru 32-7800008 PA-32-300 Cherokee Six 32-40000 thru 32-7940290 PA-32R-300 Lance 32R-7680001 thru 32R-7880068 PA-32RT-300 Lance II 32R-7885001 thru 32R-7985105 PA-32RT-300T Turbo Lance II 32R-7787001 thru 32R-7987126 PA-32-301 Saratoga 32-8006001 thru 32-8106087 PA-32-301T Turbo Saratoga 32-8024001 thru 32-8124030 PA-32R-301 Saratoga SP 32R-8013001 thru 32R-8113094 PA-32R-301T Turbo Saratoga SP 32R-8029001 thru 32R-8129090 PA-34-200T Seneca II 34-7570001 thru 34-8170092 Compliance: Required as indicated, unless already accomplished. To prevent smoke in the cockpit and possibly complete electrical failure resulting from shorting of ammeter terminal posts, accomplish the following: (a) Within the next 50 hours time-in-service (TIS) after the effective date of this AD, replace the ammeter(s) with Ammeter Replacement Kit(s), Piper Part No. 765-186, on the above listed airplanes in accordance with the instructions contained in Piper Service Bulletin No. 811A, dated May 12, 1986. (b) Airplanes may be flown in accordance with FAR 21.197 to a location where this AD can be accomplished. (c) An equivalent method of compliance if used, must be approved by the Manager, Atlanta Aircraft Certification Office, FAA, 1075 Inner Loop Road, College Park, Georgia 30337. All persons affected by this directive may obtain copies of the document(s) referred to herein upon request to Piper Aircraft Corp., 2926 Piper Drive, Vero Beach, Florida 32960, or the FAA, Rules Docket, Office of Regional Counsel, Room 1558, 601 East 12th Street, Kansas City, Missouri 64106. This AD supersedes AD 80-24-03, Amendment 39-3978. This amendment becomes effective on August 21, 1986. ## Affected data sheets (3) (OpenAirDocs) The type certificate data sheets whose models the AD names. - [TCDS 2A13](https://openairdocs.org/tcds/2A13): Piper Aircraft Inc.; names 13 of 18 models: PA-28R-180, PA-28R-201, PA-28-150, PA-28-201T, PA-28-236, PA-28R-201T, PA-28R-200, PA-28-160… - [TCDS A3SO](https://openairdocs.org/tcds/A3SO): Piper Aircraft Inc.; names 9 of 13 models: PA-32-300, PA-32-301, PA-32R-300, PA-32-260, PA-32-301T, PA-32RT-300, PA-32R-301T, PA-32R-301 (SP)… - [TCDS A7SO](https://openairdocs.org/tcds/A7SO): Piper Aircraft Inc.; names 1 of 5 models: PA-34-200T (Seneca II) ## 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: 16,143 (16,143 by airframe model, 0 by engine model) - Makers: Piper 16,101, New Piper 41, Piper/Valdes-Ervin 1 Models with the most aircraft: - [Piper PA-28-181](https://openairdocs.org/model/piper-pa-28-181): 3,549 aircraft (airframe model) - [Piper PA-28-180](https://openairdocs.org/model/piper-pa-28-180): 3,504 aircraft (airframe model) - [Piper PA-28R-200](https://openairdocs.org/model/piper-pa-28r-200): 1,223 aircraft (airframe model) - [Piper PA-32-300](https://openairdocs.org/model/piper-pa-32-300): 992 aircraft (airframe model) - [Piper PA-28-235](https://openairdocs.org/model/piper-pa-28-235): 859 aircraft (airframe model) - [Piper PA-32-260](https://openairdocs.org/model/piper-pa-32-260): 650 aircraft (airframe model) - [Piper PA-34-200T](https://openairdocs.org/model/piper-pa-34-200t): 563 aircraft (airframe model) - [Piper PA-28R-180](https://openairdocs.org/model/piper-pa-28r-180): 536 aircraft (airframe model) - [Piper PA-32R-301T](https://openairdocs.org/model/piper-pa-32r-301t): 536 aircraft (airframe model) - [Piper PA-32R-300](https://openairdocs.org/model/piper-pa-32r-300): 510 aircraft (airframe model) - [Piper PA-28-236](https://openairdocs.org/model/piper-pa-28-236): 480 aircraft (airframe model) - [Piper PA-32R-301](https://openairdocs.org/model/piper-pa-32r-301): 456 aircraft (airframe model) - [Piper PA-28R-201T](https://openairdocs.org/model/piper-pa-28r-201t): 368 aircraft (airframe model) - [Piper PA-28R-201](https://openairdocs.org/model/piper-pa-28r-201): 352 aircraft (airframe model) - [Piper PA-28RT-201T](https://openairdocs.org/model/piper-pa-28rt-201t): 255 aircraft (airframe model) - [Piper PA-28-160](https://openairdocs.org/model/piper-pa-28-160): 253 aircraft (airframe model) - [Piper PA-32RT-300T](https://openairdocs.org/model/piper-pa-32rt-300t): 204 aircraft (airframe model) - [Piper PA-32RT-300](https://openairdocs.org/model/piper-pa-32rt-300): 200 aircraft (airframe model) - [Piper PA-28RT-201](https://openairdocs.org/model/piper-pa-28rt-201): 178 aircraft (airframe model) - [Piper PA-32-301](https://openairdocs.org/model/piper-pa-32-301): 167 aircraft (airframe model) All 30 models: https://openairdocs.org/ad/86-17-01/models.md Every aircraft: https://openairdocs.org/ad/86-17-01/aircraft.md Its text cites no advisory circulars or STCs. --- 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.