# AD 60-23-05: Bellcrank Assembly Retirement

- Type: Airworthiness directive
- Status: Current
- Products: Boeing Defense & Space Group 42A, 42B, 44A and 44B
- Effective: November 8, 1960
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Rotorcraft
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FB35170E17A4A7C086256A34005B0C0B.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/60-23-05

## The airworthiness directive

60-23-05 VERTOL: Amdt. 218 Part 507 Federal Register November 8, 1960. Applies to All 42 and 44 Series Helicopters.

Compliance required as indicated.

As a result of a recent fatigue failure of the lower directional bellcrank assembly, P/N 22C1611-13, all Vertol parts P/N 22C1611-13 must be retired upon the accumulation of 2,500 hours of time in service.

This directive effective November 8, 1960.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS 1H12](https://openairdocs.org/tcds/1H12): Boeing Defense & Space Group; names 4 of 4 models: 44B, 44A, 42A, 42B

## Registered aircraft it may apply to (OpenAirDocs)

No registered aircraft matched the models it names.

Its text cites no advisory circulars or STCs.

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