# AD 76-10-07: Large Cargo Door

- Type: Airworthiness directive
- Status: Current
- Products: Maryland Air Industries F-27, F-27A, F-27B, F-27F, F-27G, F-27J and F-27M
- Effective: June 14, 1976
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- Amendment: 39-2609
- Registered aircraft: 1 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/6FE977288424209B8625698500662214.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/76-10-07

## The airworthiness directive

76-10-07 FAIRCHILD: Amendment 39-2609. Applies to all F-27 airplanes incorporating the outward opening large cargo door installed in accordance with STC No. SA932SW.

Compliance required within the next 300 hours' or 30 days' time in service, whichever occurs first, after the effective date of this AD unless already accomplished.

To prevent inadvertent opening of the large cargo door in flight, accomplish the alteration in paragraph 2, Accomplishment Instructions, in Fairchild Service Bulletin F27-52-31 dated January 8, 1976, for F-27 airplanes or an equivalent alteration approved by the Chief, Engineering and Manufacturing Branch, Federal Aviation Administration, Southwest Region.

This amendment becomes effective June 14, 1976.

## 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 7 of 12 models: F-27, F-27A, F-27M, F-27J, F-27F, F-27B, F-27G

## 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/76-10-07/models.md
Every aircraft: https://openairdocs.org/ad/76-10-07/aircraft.md

Its text cites no advisory circulars or STCs.

## NTSB investigations that cite this AD (1)

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 CHI98LA091](https://openairdocs.org/ntsb/CHI98LA091), Feb 4, 1998: Cessna 210G (N5842F), Springfield, IL, substantial damage. Probable cause: The failure of left main landing gear saddle resulting in the pilot's inability to extend the left gear. A factor was maintenance personnel's failure to comply with the related airworthiness…

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