# AD 78-11-09: Main Landing Gear Swivel Assembly

- Type: Airworthiness directive
- Status: Current
- Products: Short Brothers SD3-30
- Effective: June 6, 1978
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- Amendment: 39-3217
- Registered aircraft: 4 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E01642483B3870EC862569BB0069239B.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/78-11-09

## The airworthiness directive

78-11-09 SHORT BROTHERS LIMITED: Amendment 39-3217. Applies to Model SD3-30 airplanes, S/Ns 3003 through 3010, certificated in all categories.

Compliance required prior to accumulating 5000 landings or within 100 landings after the effective date of this AD, whichever occurs later, unless already accomplished.

To prevent failure of the main landing gear swivel assembly, remove the swivel sub- assembly, P/N 17684-1, -3, -7, -9, or -9A, the flange collar, P/N SD3-40-0023, and associated fasteners and replace with a swivel sub-assembly, P/N 17684-13, flanged collar, P/N SD3-40- 0040xB, and new fasteners all in accordance with paragraph 2, "Accomplishment Instructions", of Short Brothers Limited Mandatory Service Bulletin SD3-32-03, Revision 3, dated March 3, 1978, or an FAA-approved equivalent, and paragraph 10, "Accomplishment Instructions" of Menasco Manufacturing Service Bulletin 32-8, Revision 1, dated January 24, 1978, or an FAA- approved equivalent.

This amendmentbecomes effective June 6, 1978.

## 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: 4 (4 by airframe model, 0 by engine model)
- Makers: Short Bros. & Harland 3, Short Bros 1

Models with the most aircraft:

- [Short Bros. & Harland SD3-30](https://openairdocs.org/model/short-bros-harland-sd3-30): 3 aircraft (airframe model)
- [Short Bros SD3-30](https://openairdocs.org/model/short-bros-sd3-30): 1 aircraft (airframe model)

All 2 models: https://openairdocs.org/ad/78-11-09/models.md
Every aircraft: https://openairdocs.org/ad/78-11-09/aircraft.md

Its text cites no advisory circulars or STCs.

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