# AD 79-07-02: Batteries - Type: Airworthiness directive - Status: Current - Products: Aircraft Parts & Development A, A-2, A-3, A-4, A-5, A-5T, A-6, A-7, A-7T, A-9, A-9A, A-9B and 140 more - Effective: April 3, 1979 - Published: March 29, 1979 - Issued: March 16, 1979 - Superseded by: Nothing supersedes this AD - Product type: Appliance - Amendment: 39-3442 - Registered aircraft: 27,745 may be affected, by airframe or engine model (OpenAirDocs) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D183DDA1C21075CE86256A3200697987.0001 - DRS record last changed: November 21, 2025 - Page: https://openairdocs.org/ad/79-07-02 ## The airworthiness directive 79-07-02 ESB WISCO, INCORPORATED: Amendment 39-3442. EXIDE AC 78M and WILLARD W 78M BATTERIES. Applies to those batteries manufactured during December 1978, January and February 1979, identified by the figures N-8, A-9, or B-9 stamped on either terminal post. They may be installed in, but not limited to, the following aircraft: Aero Commander 1960 on - various models, Bellanca 1959 on - various models, Callair 1964 on - various models, Champion 7 series models: 7GC, 7HC, etc., Enstrom F-28 series, possible other models, Helio All series, Lake Amphibian Model C-1 and LA-4, Navion Rangemaster and others, Piper Cherokee and Pawnee PA-28 and PA-25, but not limited to these models, Rockwell All models, Stinson All models, Wing Derringer models. Compliance is required as follows. Remove from service before next flight and replace with any approved battery of comparable rating. This amendment becomes effective April 3, 1979. ## Affected data sheets (29) (OpenAirDocs) The type certificate data sheets whose models the AD names. - [TCDS A-759](https://openairdocs.org/tcds/A-759): American Champion Aircraft Corp.; names 22 of 22 models: 7KC, S7EC, 7GCBA, 7FC, S7CCM, 7JC, 7EC, 7GCA… - [TCDS 2A4](https://openairdocs.org/tcds/2A4): Twin Commander Aircraft LLC; names 19 of 21 models: 680-V, 680-F, 680-E, 695B, 690C, 560-F, 720, 690A… - [TCDS 2A13](https://openairdocs.org/tcds/2A13): Piper Aircraft Inc.; names 10 of 18 models: PA-28-150, PA-28-201T, PA-28-236, PA-28-140, PA-28-160, PA-28-161, PA-28-180, PA-28-151… - [TCDS A-758](https://openairdocs.org/tcds/A-758): Aircraft Parts & Development Corp.; names 10 of 11 models: A-9B, A-9, A-6, A-3, A-7, A-4, A, A-5… - [TCDS 1A8](https://openairdocs.org/tcds/1A8): Helio Alaska Inc.; names 9 of 9 models: H-800, HT-295, H-700, H-395 (USAF L-28A or U-10B), H-250, H-391 (USAF UL-24), H-395A, H-391B… - [TCDS 6A1](https://openairdocs.org/tcds/6A1): Twin Commander Aircraft LLC; names 8 of 9 models: 500A, 500B, 500U, 520, 560, 560A, 560E, 500S - [TCDS A-782](https://openairdocs.org/tcds/A-782): Sierra Hotel Aero Inc.; names 8 of 8 models: Navion B, Navion H, Navion (Army L-17A), Navion F, Navion A (Army L-17B and L-17C), Navion D, Navion E, Navion G - [TCDS A12SO](https://openairdocs.org/tcds/A12SO): Commander Aircraft Corporation; names 8 of 8 models: 114A, 112TCA, 114B, 112B, 112TC, 114, 112, 114TC - [TCDS 1A13](https://openairdocs.org/tcds/1A13): Revo Incorporated; names 7 of 7 models: Lake Model 250, Lake LA-4A, Lake LA-4, Lake LA-4-200, Lake LA-4P, Colonial C-1, Colonial C-2 - [TCDS H1CE](https://openairdocs.org/tcds/H1CE): The Enstrom Helicopter Corporation; names 7 of 14 models: F-28F, F-28F-R, F-28C-2R, F-28, F-28C-2, F-28C, F-28A - [TCDS A-767](https://openairdocs.org/tcds/A-767): Univair Aircraft Corporation; names 5 of 5 models: 108, 108-3, 108-5, 108-1, 108-2 - [TCDS A-761](https://openairdocs.org/tcds/A-761): American Champion Aircraft Corp.; names 4 of 4 models: 11BC, S11AC, 11AC, S11BC - [TCDS A-773](https://openairdocs.org/tcds/A-773): Bellanca Aircraft Corporation; names 4 of 4 models: 14-13-3W, 14-13-3, 14-13-2, 14-13 - [TCDS 3A3](https://openairdocs.org/tcds/3A3): Helio Aircraft Corporation; names 2 of 2 models: 15A, 20 - [TCDS A-796](https://openairdocs.org/tcds/A-796): American Champion Aircraft Corp.; names 2 of 2 models: S11CC, 11CC - [TCDS A21CE](https://openairdocs.org/tcds/A21CE): American Champion Aircraft Corp.; names 2 of 2 models: 8GCBC, 8KCAB - [TCDS A4EA](https://openairdocs.org/tcds/A4EA): Helio Aircraft LLC; names 2 of 2 models: HST-550A (USAF AU-24A), HST-550 - [TCDS TC 716](https://openairdocs.org/tcds/TC%20716): Bellanca Aircraft Corporation; names 2 of 2 models: 14-9L, 14-9 - [TCDS A12SW](https://openairdocs.org/tcds/A12SW): Twin Commander Aircraft LLC; names 1 of 1 models: 700 - [TCDS A3CE](https://openairdocs.org/tcds/A3CE): American Champion Aircraft Corp.; names 1 of 1 models: 402 - [TCDS A4WE](https://openairdocs.org/tcds/A4WE): Aircraft Parts & Development Corp.; names 1 of 1 models: A-9A - [TCDS A9WE](https://openairdocs.org/tcds/A9WE) (historical): Emerald Enterprises Ltd.; names 1 of 1 models: D-1 - [TCDS ATC 129](https://openairdocs.org/tcds/ATC%20129): Bellanca Aircraft Corporation; names 1 of 1 models: CH-300 Pacemaker - [TCDS ATC 319](https://openairdocs.org/tcds/ATC%20319): Bellanca Aircraft Corporation; names 1 of 1 models: CH-400 Skyrocket - [TCDS ATC 328](https://openairdocs.org/tcds/ATC%20328): Bellanca Aircraft Corporation; names 1 of 1 models: 300-W Pacemaker - [TCDS ATC 47 Bellanca](https://openairdocs.org/tcds/ATC%2047%20Bellanca): Bellanca Aircraft Corporation; names 1 of 1 models: CH - [TCDS ATC 476](https://openairdocs.org/tcds/ATC%20476): Bellanca Aircraft Corporation; names 1 of 1 models: E Pacemaker - [TCDS TC 2-475](https://openairdocs.org/tcds/TC%202-475): Bellanca Aircraft Corporation; names 1 of 1 models: F Skyrocket - [TCDS TC 745](https://openairdocs.org/tcds/TC%20745): Bellanca Aircraft Corporation; names 1 of 1 models: 14-12F-3 ## 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: 27,745 (27,745 by airframe model, 0 by engine model) - Makers: Piper 16,028, Aeronca 3,086, Bellanca 1,929, Champion 1,603, Stinson 1,270, American Champion 1,096, Rockwell International 467, Aero Commander 422, Ryan 359, North American 256 Models with the most aircraft: - [Piper PA-28-140](https://openairdocs.org/model/piper-pa-28-140): 4,258 aircraft (airframe model) - [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) - [Aeronca 7AC](https://openairdocs.org/model/aeronca-7ac): 1,878 aircraft (airframe model) - [Piper PA-28-161](https://openairdocs.org/model/piper-pa-28-161): 1,497 aircraft (airframe model) - [Piper PA-28-151](https://openairdocs.org/model/piper-pa-28-151): 960 aircraft (airframe model) - [Piper PA-28-235](https://openairdocs.org/model/piper-pa-28-235): 859 aircraft (airframe model) - [Aeronca 11AC](https://openairdocs.org/model/aeronca-11ac): 603 aircraft (airframe model) - [Bellanca 7GCBC](https://openairdocs.org/model/bellanca-7gcbc): 487 aircraft (airframe model) - [Piper PA-28-236](https://openairdocs.org/model/piper-pa-28-236): 480 aircraft (airframe model) - [American Champion 8KCAB](https://openairdocs.org/model/american-champion-8kcab): 449 aircraft (airframe model) - [Stinson 108-3](https://openairdocs.org/model/stinson-108-3): 433 aircraft (airframe model) - [Champion 7ECA](https://openairdocs.org/model/champion-7eca): 419 aircraft (airframe model) - [Bellanca 8KCAB](https://openairdocs.org/model/bellanca-8kcab): 371 aircraft (airframe model) - [Bellanca 7ECA](https://openairdocs.org/model/bellanca-7eca): 347 aircraft (airframe model) - [Piper PA-25-235](https://openairdocs.org/model/piper-pa-25-235): 347 aircraft (airframe model) - [Stinson 108-1](https://openairdocs.org/model/stinson-108-1): 338 aircraft (airframe model) - [Stinson 108-2](https://openairdocs.org/model/stinson-108-2): 285 aircraft (airframe model) - [Piper PA-28-160](https://openairdocs.org/model/piper-pa-28-160): 253 aircraft (airframe model) - [American Champion 7GCBC](https://openairdocs.org/model/american-champion-7gcbc): 232 aircraft (airframe model) All 217 models: https://openairdocs.org/ad/79-07-02/models.md Every aircraft: https://openairdocs.org/ad/79-07-02/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.