# AD 60-17-01: Blades

- Type: Airworthiness directive
- Status: Current
- Products: Pacific Propeller A6441FN-606
- Superseded by: Nothing supersedes this AD
- Product type: Propeller
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/03271727A4CC86D78625795A006B07F1.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/60-17-01

## The airworthiness directive

60-17-01 AERO PRODUCTS: Amdt. 193 Part 507 Federal Register August 19, 1960. Applies to A6441FN-606 Propeller Installed On Lockheed 188 Series Aircraft.

Compliance required as indicated.

As a result of investigations, it has been determined that the following must be accomplished to minimize the possible occurrence of propeller roughness and/or failures:

Not later than November 1, 1960, the thrust member thickness must be determined per Allison Propeller Bulletin 63-127. All blades that do not meet thrust member thickness as prescribed in Allison Propeller Bulletin 63-127 must be removed from service prior to further flight. Concurrently with this inspection all blades shall be classified aerodynamically per Allison Propeller Bulletin 63-125. (Allison telegram to all operators dated May 19, 1960, and Allison Propeller Bulletins Nos. 63-125 and 63-127 cover this same subject.)

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS P-898](https://openairdocs.org/tcds/P-898): Pacific Propeller Inc.; names 1 of 1 models: A6441FN-606

## 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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