# AD 47-50-09: Landing Gear Fittings

- Type: Airworthiness directive
- Status: Current
- Products: Fairchild Personal Planes Division, Fairchild Engine and 24R40 (Army UC-86), 24R40S, 24R46, 24R46A (Army UC-61K), 24R46S, 24R9 (Army UC-61C), 24R9S, 24W-40 (Army UC-61G), 24W-40S, 24W-41 (Army UC-61), 24W-41A (Army UC-61A), 24W-41AS and 5 more
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Registered aircraft: 174 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/31CA5117DBBB994B86256A38004EF13F.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/47-50-09

## The airworthiness directive

47-50-09 FAIRCHILD: Applies to 24R and 24W Series Aircraft.

Inspection required each 100 hours of operation.

Inspect the landing gear fittings near the lower longeron attachment and also the fuselage fittings for cracks. Cracks in the strut not exceeding 1/8 inch in length may be repaired by electric arc welding. Cracks in excess of 1/8 inch in length should be stop drilled and oxyacetylene welded, and the landing gear strut should be re-heat-treated to 180,000 pounds per square inch.

(Fairchild Service Bulletin No. 41-8 dated June 23, 1941, covers this subject.)

## Affected data sheets (2) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A-707](https://openairdocs.org/tcds/A-707): Fairchild Personal Planes Division Fairchild Engine and Airplane Corp.; names 10 of 10 models: 24W-46, 24W-41AS, 24W-41 (Army UC-61), 24W-46S, 24W-41S, 24W-9 (Army UC-61F), 24W-9S, 24W-41A (Army UC-61A)…
- [TCDS A-706](https://openairdocs.org/tcds/A-706): Fairchild Personal Planes Division Fairchild Engine and Airplane Corp.; names 7 of 7 models: 24R46, 24R9S, 24R40 (Army UC-86), 24R46S, 24R9 (Army UC-61C), 24R46A (Army UC-61K), 24R40S

## 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: 174 (174 by airframe model, 0 by engine model)
- Makers: Fairchild 174

Models with the most aircraft:

- [Fairchild 24W-46](https://openairdocs.org/model/fairchild-24w-46): 53 aircraft (airframe model)
- [Fairchild 24R-46](https://openairdocs.org/model/fairchild-24r-46): 50 aircraft (airframe model)
- [Fairchild 24W-41A](https://openairdocs.org/model/fairchild-24w-41a): 18 aircraft (airframe model)
- [Fairchild 24R-46A](https://openairdocs.org/model/fairchild-24r-46a): 15 aircraft (airframe model)
- [Fairchild 24W-40](https://openairdocs.org/model/fairchild-24w-40): 15 aircraft (airframe model)
- [Fairchild 24R-9](https://openairdocs.org/model/fairchild-24r-9): 9 aircraft (airframe model)
- [Fairchild 24W-9](https://openairdocs.org/model/fairchild-24w-9): 7 aircraft (airframe model)
- [Fairchild 24R-40](https://openairdocs.org/model/fairchild-24r-40): 5 aircraft (airframe model)
- [Fairchild 24R-46S](https://openairdocs.org/model/fairchild-24r-46s): 1 aircraft (airframe model)
- [Fairchild 24W-46S](https://openairdocs.org/model/fairchild-24w-46s): 1 aircraft (airframe model)

All 10 models: https://openairdocs.org/ad/47-50-09/models.md
Every aircraft: https://openairdocs.org/ad/47-50-09/aircraft.md

Its text cites no advisory circulars or STCs.

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