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Airworthiness Directive

AD 2007-16-01 72 FR 41615 Active

Federal Aviation Administration · 14 CFR part 39

Requires a visual check to determine if a certain serial-numbered main rotor blade retention pin (retention pin) is installed, and removing and replacing any affected retention pin with an airworthy retention pin.

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FR document
07-3711
Amendment
39-15140
Published
2007-07-31
Effective
2007-08-15
Models covered
1

Last live check: 2026-10-04

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AD

2007-16-01

FR doc 07-3711 · 72 FR 41615

AD 2007-16-01Published 2007-07-31Effective 2007-08-15

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 a visual check to determine if a certain serial-numbered main rotor blade retention pin (retention pin) is installed, and removing and replacing any affected retention pin with an airworthy retention pin.

Full official abstract

This amendment adopts a new airworthiness directive (AD) for Enstrom Helicopter Corporation (Enstrom) Model F-28, F-28A, F-28C, F- 28C-2, F-28C-2R, F-28F, F-28F-R, 280, 280C, 280F, 280FX, TH-28, 480, and 480B helicopters. This action requires a visual check to determine if a certain serial-numbered main rotor blade retention pin (retention pin) is installed, and removing and replacing any affected retention pin with an airworthy retention pin. This amendment is prompted by a report from the manufacturer that some retention pins were not manufactured in accordance with specifications cited on the engineering drawing. The actions specified in this AD are intended to prevent failure of a retention pin, separation of a main rotor blade from the helicopter, and subsequent loss of control of the helicopter.

More directives for Enstrom F-28 / 280 / 480

  1. AD 2018-02-01 Airworthiness Directives; The Enstrom Helicopter Corporation Helicopters Effective 2018-02-21
  2. AD 2017-26-03 Airworthiness Directives; The Enstrom Helicopter Corporation Helicopters Effective 2018-01-04
  3. AD 2015-08-51 Airworthiness Directives; The Enstrom Helicopter Corporation Effective 2015-06-02
  4. AD 2012-11-05 Airworthiness Directives; Enstrom Helicopter Corporation Helicopters Effective 2012-07-03
  5. AD 2011-26-10 Airworthiness Directives; Enstrom Helicopter Corporation Helicopters Effective 2012-01-23

All Enstrom F-28 / 280 / 480 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