# AD 68-08-09: Coupling Shaft

- Type: Airworthiness directive
- Status: Current
- Products: FH1100 Manufacturing FH-1100
- Effective: April 23, 1968
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Rotorcraft
- Amendment: 39-588
- Registered aircraft: 8 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5D226FE0E51964D386256A38005FA5C3.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/68-08-09

## The airworthiness directive

68-08-09 FAIRCHILD-HILLER: Amdt. 39-588. Applies to FH-1100 type Helicopters.

Compliance required as follows:

  (a) Remove P/N 19E49-3A -3B coupling shaft serial numbers 20, 21, 22, 23, 24, 25, 75, 77, 87, 90, 93, 98, 104 and 106 from service prior to further flight and replace with the same part number but different serial numbers.

This amendment effective April 23, 1968.

## 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/68-08-09/models.md
Every aircraft: https://openairdocs.org/ad/68-08-09/aircraft.md

Its text cites no advisory circulars or STCs.

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