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Airworthiness Directive

AD 99-21-02 64 FR 53191 Active

Federal Aviation Administration · 14 CFR part 39

Requires detailed visual and borescopic inspections to detect corrosion of the engine mounting tube assembly, and replacement of corroded parts with new or serviceable parts.

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FR document
99-25596
Amendment
39-11345
Published
1999-10-01
Effective
1999-11-05
Models covered
1

Last live check: 2026-10-04

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AD

99-21-02

FR doc 99-25596 · 64 FR 53191

AD 99-21-02Published 1999-10-01Effective 1999-11-05

FAA rule - 14 CFR 39

FAA rule. Compliance with an applicable AD is required under 14 CFR 39.7. Check its effective date, applicability, compliance times and current status.

Requires detailed visual and borescopic inspections to detect corrosion of the engine mounting tube assembly, and replacement of corroded parts with new or serviceable parts.

Full official abstract

This amendment adopts a new airworthiness directive (AD), applicable to all Short Brothers Model SD3-30, SD3-60, SD3-SHERPA, and SD3-60 SHERPA series airplanes, that requires detailed visual and borescopic inspections to detect corrosion of the engine mounting tube assembly, and replacement of corroded parts with new or serviceable parts. This amendment is prompted by issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified by this AD are intended to prevent failure of the engine mounting tube assembly, which could result in loss of the engine in flight.

More directives for Shorts SD3-30 / SD3-60

  1. AD 2010-24-06 Airworthiness Directives; Short Brothers PLC Model SD3 Airplanes Effective 2011-02-16
  2. AD 2008-16-09 R1 Airworthiness Directives; Short Brothers Model SD3-60 Airplanes Effective 2009-09-16
  3. AD 2008-16-09 Airworthiness Directives; Short Brothers Model SD3-60 Airplanes Effective 2008-09-15
  4. AD 2008-12-08 Airworthiness Directives; Short Brothers Model SD3-60 Airplanes Equipped... Effective 2008-07-15
  5. AD 2007-08-09 Airworthiness Directives; Short Brothers Model SD3-60 SHERPA, SD3-SHERPA... Effective 2007-05-08

All Shorts SD3-30 / SD3-60 directives

View on Federal Register (opens in a new tab) View this AD in FAA DRS (opens in a new tab) Print AD packet (opens the full Federal Register document in a new tab)

Applies to 1 model in our index