# AD 79-11-01: Attaching Bolts

- Type: Airworthiness directive
- Status: Current
- Products: Short Brothers SD3-30
- Effective: June 25, 1979
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- Amendment: 39-3476
- Registered aircraft: 4 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C1710BA065BB324D862569BB0069FCE9.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/79-11-01

## The airworthiness directive

79-11-01 SHORT BROTHERS LIMITED: Amendment 39-3476. Applies to Model SD3-30 airplanes, S/N's 3003 through 3017, certificated in all categories.

Compliance is required prior to the accumulation of 6000 total landings or prior to the accumulation of 25 landings after the effective date of this AD, whichever occurs later, unless already accomplished.

To prevent fatigue failure of the bolts, P/N A111-5-G (10 places) and A111-5-J (2 places), attaching the engine support tube brackets to the engine ring, replace the bolts and associated hardware with new bolts, P/N MS. 21250-05008 (10 places) and MS. 21250-06008 (2 places), and associated hardware in accordance with Section 2, "ACCOMPLISHMENT INSTRUCTIONS," of Short Brothers Limited Service Bulletin No. SD3-71-04, dated February 14, 1978, or an FAA-approved equivalent.

This amendment becomes effective June 25, 1979.

## 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/79-11-01/models.md
Every aircraft: https://openairdocs.org/ad/79-11-01/aircraft.md

Its text cites no advisory circulars or STCs.

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