# AD 82-22-51: Moisture Separator Assembly

- Type: Airworthiness directive
- Status: Current
- Products: Maryland Air Industries F-27, F-27A, F-27B, F-27F, F-27G, F-27J, F-27M, FH-227, FH-227B, FH-227C, FH-227D and FH-227E
- Effective: February 3, 1983
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- Amendment: 39-4543
- Registered aircraft: 1 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/98C6DB94B1CEDB46862569850066AFF6.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/82-22-51

## The airworthiness directive

82-22-51 FAIRCHILD REPUBLIC: Amendment 39-4543. Applies to Fairchild Republic Models F-27 and FH-227 airplanes certificated in all categories. To prevent moisture separator assembly shell failure, accomplish the following:

A. Prior to accumulating 100 landings or within 20 days, whichever occurs first, unless accomplished within the last 12 months, inspect the aircraft's moisture separator assembly P/N's 890469, 890469-01, 890469-02, 891572, or 891572-01, as applicable (two per aircraft), for the following:

1) Any of the above separator assemblies having upper shell assemblies P/N 841665 or 841665-01 which have been in service for three years or 20,000 cycles, whichever occurs first, must be immediately removed from service and replaced with a serviceable shell assembly.

2) Any shell assembly P/N 841665 or 841665-01 confirmed to have been installed less than three years or 20,000 cycles accumulated service, whichever comes first, which has not had the annualfluorescent penetrant inspection of shell assembly specified by the Walter Kidde Maintenance and Overhaul Manual F-41024B must be removed from service for the inspection and overhaul specified. Strict compliance with the crack and corrosion detection criteria of the Walter Kidde Manual is mandatory.

3) Any shell assembly P/N 841665 or 841665-01 with manufacturing dates stamped on the top of the shell housing prior to September 1979 which have never been in service must be inspected in accordance with Kidde Manual F-41024B before being put in service.

B. Alternate means of compliance which provide an equivalent level of safety may be used when approved by the Manager, New York Aircraft Certification Office, FAA, New England Region.

C. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base for the accomplishment of inspections and/or modifications required by this AD.

This amendment becomes effective February 3, 1983, and was effective earlier to those recipients of Telegraphic AD T82-22-51 dated October 27, 1982.

## Affected data sheets (1) (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…

## 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: 1 (1 by airframe model, 0 by engine model)
- Makers: Fairchild 1

Models with the most aircraft:

- [Fairchild F-27F](https://openairdocs.org/model/fairchild-f-27f): 1 aircraft (airframe model)

All 1 models: https://openairdocs.org/ad/82-22-51/models.md
Every aircraft: https://openairdocs.org/ad/82-22-51/aircraft.md

Its text cites no advisory circulars or STCs.

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