# AD 66-30-05: Main Engine Drive Shaft

- Type: Airworthiness directive
- Status: Current
- Products: FH1100 Manufacturing FH-1100
- Effective: December 20, 1966
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Rotorcraft
- Amendment: 39-327
- Registered aircraft: 8 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/6E0321217DDDB6F086256A38005F8AC4.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/66-30-05

## The airworthiness directive

66-30-05 FAIRCHILD-HILLER: Amdt. 39-327 Part 39 Federal Register December 20, 1966. Applies to Model FH-1100 Helicopters.

Compliance required before further flight.

As a result of three failures of the Bendix main engine drive shaft, each of which occurred with less than 15 hours total time on the shaft, remove the Bendix main engine drive shaft P/N 19E49-4 and install Bendix shaft P/N 19E49X3 or 19E49-3 or an equivalent approved by the Chief, Aircraft Engineering Division, FAA Western Region, Los Angeles, California.

This directive effective upon publication in the Federal Register for all persons except those to whom it was made effective immediately by telegram dated December 14, 1966.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS H2WE](https://openairdocs.org/tcds/H2WE): Air Space Design and Manufacturing LLC; names 1 of 2 models: FH-1100

## 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: 8 (8 by airframe model, 0 by engine model)
- Makers: Fairchild Hiller 8

Models with the most aircraft:

- [Fairchild Hiller FH-1100](https://openairdocs.org/model/fairchild-hiller-fh-1100): 8 aircraft (airframe model)

All 1 models: https://openairdocs.org/ad/66-30-05/models.md
Every aircraft: https://openairdocs.org/ad/66-30-05/aircraft.md

Its text cites no advisory circulars or STCs.

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