# AD 46-14-01: Propeller Indexing

- Type: Airworthiness directive
- Status: Current
- Products: Fairchild Hiller M-62C
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Registered aircraft: 35 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/0926D2F20526A89386256A38004EA37E.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/46-14-01

## The airworthiness directive

46-14-01 FAIRCHILD: (Was Mandatory Note 5 of AD-724-2.) Applies to Model M- 62C Aircraft.

Inspect indexing of fixed pitch wood propeller on engine crankshaft. To reduce possibility of crankshaft failure, fixed pitch wood propeller must be installed in the 90 degree position (blades at right angles to the crankthrow.)

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A-724](https://openairdocs.org/tcds/A-724): Fairchild Hiller Corporation; names 1 of 5 models: M-62C

## 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: 35 (35 by airframe model, 0 by engine model)
- Makers: Fairchild 32, Fairchild Funk 3

Models with the most aircraft:

- [Fairchild M-62C(PT-23A)](https://openairdocs.org/model/fairchild-m-62c-pt-23a): 32 aircraft (airframe model)
- [Fairchild Funk M62C F-23A](https://openairdocs.org/model/fairchild-funk-m62c-f-23a): 3 aircraft (airframe model)

All 2 models: https://openairdocs.org/ad/46-14-01/models.md
Every aircraft: https://openairdocs.org/ad/46-14-01/aircraft.md

Its text cites no advisory circulars or STCs.

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