# AD 71-24-08: Landing Gear Torque Tube

- Type: Airworthiness directive
- Status: Current
- Products: FH1100 Manufacturing FH-1100
- Effective: November 30, 1971
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Rotorcraft
- Amendment: 39-1343
- Registered aircraft: 8 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/459E9E03636EDAAD86256A38005FE07B.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/71-24-08

## The airworthiness directive

71-24-08 FAIRCHILD HILLER AIRCRAFT: Amdt. 39-1343. Applies to FH1100 Type Helicopters certificated in all categories.

Compliance required as indicated.

To preclude failure of the landing gear torque tube P/N 24-43041 at the skid support attachments accomplish the following:

a. Within the next 50 hours in service after the effective date of this AD, unless already accomplished within the last 50 hours in service, inspect, and replace if necessary, torque tube P/N 24-43041 in accordance with Paragraphs 1 and 2 of Fairchild Hiller Service Letter No. SL FH1100-43-1 dated 5 October 1971 or later FAA approved Revision, or an alternate method approved by the Chief, Engineering & Manufacturing Branch, FAA, Eastern Region.

b. Within 100 hours in service after the inspection required by Paragraph a and every 100 hours in service thereafter, inspect and replace if necessary torque tube P/N 24-43041 in accordance with Paragraph 2 of Fairchild Hiller Service Letter SL FH1100-43-1 dated 5 October 1971 or later FAA-approved Revision, or an alternate method approved by the Chief, Engineering & Manufacturing Branch, FAA, Eastern Region.

This amendment is effective November 30, 1971.

## 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/71-24-08/models.md
Every aircraft: https://openairdocs.org/ad/71-24-08/aircraft.md

Its text cites no advisory circulars or STCs.

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