# AD 60-06-04: Generator Drive Gear

- Type: Airworthiness directive
- Status: Current
- Products: Continental Motors E165-2, E165-3, E165-4, E185-1, E185-10, E185-11, E185-2, E185-3, E185-5, E185-8, E185-9, E225-2 and 3 more
- Superseded by: Nothing supersedes this AD
- Product type: Engine
- Registered aircraft: 2,114 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/8BE4DB92F2FE2FCD862569AE00702209.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/60-06-04

## The airworthiness directive

60-06-04 CONTINENTAL: Amdt. 114, Part 507, Federal Register March 11, 1960. Applies to E165, E185, and E225 Series Engines Equipped with Delco-Remy Generators P/N 1101886, 1101887, 1101888, and 1101908.

Compliance required at next periodic inspection, engine overhaul or generator removal whichever occurs first, but in any case not later than December 31, 1960.

To prevent failure of the generator drive gear retaining nut internal tooth lockwasher (CMC P/N 531232) remove the generator and inspect the generator drive to determine whether the internal tooth lockwasher or the plain flat washer (CMC P/N 401507) is installed. If the internal tooth lockwasher is installed, remove it and install the flat washer. (Note: The flat washer is not an aircraft standard part.) Use a new retaining nut (CMC P/N 531231, Esna P/N 29NTE-064 or equivalent) for reassembly. Apply a torque of 175-195 inch-pounds to the nut.

(Continental Motors Corporation Service Bulletin M57-4 covers this same subject.)

## Affected data sheets (2) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS E-246](https://openairdocs.org/tcds/E-246): Continental Aerospace Technologies, Inc.; names 11 of 11 models: E185-3, E185-1, E185-2, E165-2, E165-3, E185-11, E185-9, E185-10…
- [TCDS E-267](https://openairdocs.org/tcds/E-267): Continental Aerospace Technologies, Inc.; names 4 of 4 models: E225-8, E225-9, E225-4, E225-2

## 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: 2,114 (0 by airframe model, 2,114 by engine model)
- Makers: Beech 1,490, Ryan 256, North American 224, Navion 92, Luscombe 23, Cessna 10, Aircraft Manufacturing 3, Piper 3, Andrew J Parks 1, Boughner Gerald 1

Models with the most aircraft:

- [Continental E185 series](https://openairdocs.org/engine/continental-e185-series): 1,108 aircraft (engine model)
- [Continental E225 series](https://openairdocs.org/engine/continental-e225-series): 979 aircraft (engine model)
- [Continental E165 series](https://openairdocs.org/engine/continental-e165-series): 8 aircraft (engine model)
- [Continental E225-4](https://openairdocs.org/engine/continental-e225-4): 7 aircraft (engine model)
- [Continental E225-8](https://openairdocs.org/engine/continental-e225-8): 7 aircraft (engine model)
- [Continental E185-1](https://openairdocs.org/engine/continental-e185-1): 3 aircraft (engine model)
- [Continental E-185-11](https://openairdocs.org/engine/continental-e-185-11): 1 aircraft (engine model)
- [Continental E185-9](https://openairdocs.org/engine/continental-e185-9): 1 aircraft (engine model)

All 8 models: https://openairdocs.org/ad/60-06-04/models.md
Every aircraft: https://openairdocs.org/ad/60-06-04/aircraft.md

Its text cites no advisory circulars or STCs.

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