# AD 69-21-02: Cabin Superchargers

- Type: Airworthiness directive
- Status: Current
- Products: British Aerospace Argosy AW.650 Series 101, F27 Mark 100, F27 Mark 300, Cabin Supercharges, G-159, F-27, F-27A, F-27B, F-27F, F-27G, F-27J, F-27M and 9 more
- Effective: October 9, 1969
- Superseded by: Nothing supersedes this AD
- Product type: Appliance
- Amendment: 39-858
- Registered aircraft: 6 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/7160C58299BD863986256A3300423FE6.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/69-21-02

## The airworthiness directive

69-21-02 GODFREY: Amdt. 39-858. Applies to Godfrey Cabin Superchargers Type 15, Marks 6, 9 and 14, installed on, but not necessarily limited to British Aircraft Corporation, Viscount Models 744, 745D, and 810; Armstrong Whitworth Argosy AW-650; Fokker F-27, Marks 100 and 300; Fairchild Hiller F-27 and FH-227 all series; Grumman Model G-159 and Nihon YS-11 all series airplanes.

Compliance required as indicated.

To prevent loss of oil from Godfrey cabin compressor due to distortion of the banjo adapter in the oil filter assembly, accomplish the following, unless already accomplished:

  (a) For British Aircraft Corporation Viscount Models 744, 745D, and 810 airplanes, at the next overhaul of the Supercharger or within the next 750 hours' time in service, whichever occurs first, after the effective date of this AD, comply with either paragraph (d) or (e) of this AD.

  (b) For Armstrong Whitworth Argosy AW-650, Grumman Model G-159, and Nihon YS-11 series airplanes, at the next overhaul of the supercharger or within the next 1,500 hours' time in service, whichever occurs first, after the effective date of this AD, comply with either paragraph (d) or (e) of this AD.

  (c) For Fokker Model F-27, Marks 100 and 300 series airplanes, and Fairchild Hiller Models F-27 and FH-227 series airplanes, at the next overhaul of the supercharger or within the next 1,500 hours' time in service, whichever occurs first, after the effective date of this AD, comply with either paragraph (d) or (f) of this AD.

  (d) Replace Godfrey banjo adapter, P/N V8653, with Godfrey banjo adapter, P/N 139313, in accordance with Godfrey Precision Products Ltd., Service Bulletin Nos. 21-120, dated July 1968 or later ARB-approved issue or an equivalent approved by the Chief, Aircraft Certification Staff, FAA, Europe, Africa and Middle East.

  (e) Replace the Godfrey oil feeder pipe, P/N V9249, and banjo adapter, P/N 8653, with a Godfrey oil feeder pipe, P/N 139328, and banjo adapter, P/N 139322, in accordance with Godfrey Precision Products Ltd., Service Bulletin No. 21-121, dated 5 April 1968 or later ARB-approved issue or an equivalent approved by the Chief, Aircraft Certification Staff, FAA, Europe, Africa and Middle East.

  (f) Replace the Godfrey oil feeder pipe, P/N V9979, and banjo adapter, P/N V8653, with a Godfrey oil feeder pipe, P/N 139330, and banjo adapter, P/N 139322, in accordance with Godfrey Precision Products Ltd., Service Bulletin No. 21-129, Revision 1, dated 9 October 1968 or later ARB-approved issue or an equivalent approved by the Chief, Aircraft Certification Staff, FAA, Europe, Africa and Middle East.

This amendment becomes effective October 9, 1969.

## Affected data sheets (6) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS 7A1](https://openairdocs.org/tcds/7A1): Maryland Air Industries Inc.; names 12 of 12 models: FH-227B, FH-227C, FH-227D, F-27, F-27A, F-27M, F-27J, FH-227E…
- [TCDS A-814](https://openairdocs.org/tcds/A-814): Vickers-Armstrongs (Aircraft Limited); names 3 of 3 models: Viscount 810, Viscount 744, Viscount 745D
- [TCDS A-817](https://openairdocs.org/tcds/A-817): Fokker Services B.V.; names 2 of 8 models: F27 Mark 100, F27 Mark 300
- [TCDS 1A17](https://openairdocs.org/tcds/1A17): Gulfstream Aerospace Corporation; names 1 of 1 models: G-159
- [TCDS 7A9](https://openairdocs.org/tcds/7A9): British Aerospace (Commercial Aircraft) Ltd; names 1 of 1 models: Argosy AW.650 Series 101
- [TCDS A1PC](https://openairdocs.org/tcds/A1PC): Mitsubishi Heavy Industries Ltd.; names 1 of 5 models: YS-11

## 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: 6 (6 by airframe model, 0 by engine model)
- Makers: Grumman 4, Fairchild 1, Grumman American Avn. 1

Models with the most aircraft:

- [Grumman G-159](https://openairdocs.org/model/grumman-g-159): 4 aircraft (airframe model)
- [Fairchild F-27F](https://openairdocs.org/model/fairchild-f-27f): 1 aircraft (airframe model)
- [Grumman American Avn. G-159](https://openairdocs.org/model/grumman-american-avn-g-159): 1 aircraft (airframe model)

All 3 models: https://openairdocs.org/ad/69-21-02/models.md
Every aircraft: https://openairdocs.org/ad/69-21-02/aircraft.md

Its text cites no advisory circulars or STCs.

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