# AD 82-27-01: Hub

- Type: Airworthiness directive
- Status: Current
- Products: McCauley Propeller Systems 1A170
- Effective: December 30, 1982
- Superseded by: Nothing supersedes this AD
- Product type: Propeller
- Amendment: 39-4520
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/CEF647FBF3CC2A7286256967004E5E13.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/82-27-01

## The airworthiness directive

82-27-01 McCAULEY ACCESSORY DIVISION: Amendment 39-4520. Applies to all McCauley Accessory Division Model 1A170/FFA fixed pitch propellers installed on, but not limited to, Gulfstream Aerospace Model AA-5B aircraft certificated in all categories.

Compliance is required as indicated, unless already accomplished.

To prevent propeller failure, accomplish the following:

  (a) For propellers with 190 or more hours time in service since new or since last dye penetrant type inspection, inspect in accordance with paragraph (c) within the next 10 hours time in service and every 200 hours time in service thereafter.

  (b) For propellers with less than 190 hours time in service since new or since last dye penetrant type inspection, inspect in accordance with paragraph (c) prior to the accumulation of 200 hours time in service and every 200 hours time in service thereafter.

  (c) Inspection procedure:

  (1) Remove propeller from the aircraft and remove spacer from the propeller.

  (2) Thoroughly remove and clean all paint material down to the anodize surface and inspect the center relief bore (hole), all mounting bolt holes, and all external surfaces in the entire propeller hub area (faces and sides) for cracks using dye penetrant inspection methods.

  (3) If a crack is found, replace the propeller with a serviceable propeller before further flight.

  (d) A special flight permit may be issued in accordance with Federal Aviation Regulations (FARs) 21.197 and 21.199 to operate the aircraft to a base where this AD can be accomplished.

  (e) Upon request of the operator, an equivalent means of compliance with the requirements of this AD may be approved by the Manager, Chicago Aircraft Certification Office, FAA, 2300 East Devon Avenue, Des Plaines, Illinois 60018.

This AD supersedes Amendment 39-3689 (45 FR 8947), AD 80-04-05.

This amendment becomes effective December 30, 1982.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS P-857](https://openairdocs.org/tcds/P-857): McCauley Propeller Systems; names 1 of 4 models: 1A170

## Registered aircraft it may apply to (OpenAirDocs)

No registered aircraft matched the models it names.

Its text cites no advisory circulars or STCs.

## NTSB investigations that cite this AD (3)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB CEN17LA333](https://openairdocs.org/ntsb/CEN17LA333), Aug 28, 2017: Gulfstream American AA 5B (N28005), Carbondale, IL, substantial damage. Probable cause: The failure of the propeller due to fatigue as a result of improper installation by unknown maintenance personnel at some point during the life of the propeller.
- [NTSB LAX84LA167](https://openairdocs.org/ntsb/LAX84LA167), Feb 6, 1984: Grumman American AA-5B (N81317), Lake Havasu Cit, AZ, substantial damage
- [NTSB ATL83LA002](https://openairdocs.org/ntsb/ATL83LA002), Oct 3, 1982: Grumman AA-5B (N28820), Denver, NC, substantial damage

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