# AD 66-20-05: Propeller Spinner

- Type: Airworthiness directive
- Status: Current
- Products: Piper PA-28-150, PA-28-160 and PA-28-180
- Effective: August 27, 1966
- Published: August 18, 1966
- Issued: August 11, 1966
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Amendment: 39-276
- Registered aircraft: 3,880 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/BD1AA50EEE13F7D58625699700580C69.0001
- DRS record last changed: November 21, 2025
- Page: https://openairdocs.org/ad/66-20-05

## The airworthiness directive

66-20-05 PIPER: Amdt. 39-276 Part 39 Federal Register August 18, 1966. Applies to Model PA-28-150, -160, and -180 Airplanes, Serial Numbers 1761 through 3533.

Compliance required within the next 25 hours' time in service after the effective date of this AD, unless already accomplished.

To prevent failures of the propeller spinner assembly, remove propeller spinner, P/N 63760 or 63760-03 as applicable, and propeller spinner attaching bulkhead, P/N 65208 or 65208- 03, as applicable, or accomplish the following:

  (a) For Model PA-28-150 and -160 airplanes, Serial Numbers 28-1761 through 28- 2434, modify spinner in accordance with Piper Service Letters Nos. 457 and 471A, and install spinner bulkhead assembly, P/N 65804-04; spacer, P/N 65806-00; and new propeller bolts, P/N AN 76-55S; in accordance with Piper Service Kit No. 757-047 or an FAA-approved equivalent.

  (b) For Model PA-28-150 and -160 airplanes, Serial Numbers 28-2435 through 28- 3199, modify spinner inaccordance with Piper Service Letter No. 471A, and install spinner bulkhead assembly, P/N 65804-04; spacer, P/N 65806-00; and new propeller bolts, P/N AN 76- 55S; in accordance with Piper Service Kit No. 757-047 or an FAA-approved equivalent.

  (c) For Model PA-28-150 and -160 airplanes, Serial Numbers 28-3200 through 28- 3533, install spinner bulkhead assembly, P/N 65804-04; spacer, P/N 65806-00; and new propeller bolts, P/N AN 76-55S; in accordance with Piper Service Kit No. 757-047 or an FAA-approved equivalent.

  (d) For Model PA-28-180 airplanes, Serial Numbers 28-1761 through 28-2434, modify spinner in accordance with Piper Service Letters Nos. 457 and 471A, and install spinner bulkhead assembly, P/N 65804-00, in accordance with Piper Service Kit No. 757-046 or an FAA-approved equivalent.

  (e) For Model PA-28-180 airplanes, Serial Numbers 28-2435 through 28-3199, modify spinner in accordance with Piper Service Letter No. 471A, and install spinner bulkhead assembly, P/N 65804-00, in accordance with Piper Service Kit No. 757-046 or an FAA-approved equivalent.

  (f) For Model PA-28-180 airplanes, Serial Numbers 28-3200 through 28-3533, install spinner bulkhead assembly, P/N 65804-00, in accordance with Piper Service Kit No. 757- 046 or an FAA-approved equivalent.

(Piper Service Bulletin No. 234 also pertains to this subject.)

This directive effective August 27, 1966.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS 2A13](https://openairdocs.org/tcds/2A13): Piper Aircraft Inc.; names 3 of 18 models: PA-28-150, PA-28-160, PA-28-180

## 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: 3,880 (3,880 by airframe model, 0 by engine model)
- Makers: Piper 3,880

Models with the most aircraft:

- [Piper PA-28-180](https://openairdocs.org/model/piper-pa-28-180): 3,504 aircraft (airframe model)
- [Piper PA-28-160](https://openairdocs.org/model/piper-pa-28-160): 253 aircraft (airframe model)
- [Piper PA-28-150](https://openairdocs.org/model/piper-pa-28-150): 123 aircraft (airframe model)

All 3 models: https://openairdocs.org/ad/66-20-05/models.md
Every aircraft: https://openairdocs.org/ad/66-20-05/aircraft.md

Its text cites no advisory circulars or STCs.

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