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Airworthiness Directive

AD 98-08-19 63 FR 19170 Active

Federal Aviation Administration · 14 CFR part 39

Requires installing access holes in both wing leading edges and repetitively inspecting the forward attach brackets and straps for cracks.

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FR document
98-9874
Amendment
39-10468
Published
1998-04-17
Effective
1998-05-18
Models covered
1

Last live check: 2026-08-19

Printed from https://aircraftdirectives.com/ad/98-08-19 · AircraftDirectives restates official FAA and manufacturer records; the official sources named on this sheet control. Not an airworthiness determination.

This page is a reference Record, not an airworthiness or compliance determination. Official FAA and manufacturer sources control over our restatement, subject to governing law. Check applicability, current requirements and incorporated documents before acting. The owner or operator remains responsible for airworthiness and required records under 14 CFR 91.403 and 91.417, as applicable. Terms of Use: /terms.

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AD

98-08-19

FR doc 98-9874 · 63 FR 19170

AD 98-08-19Published 1998-04-17Effective 1998-05-18

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 installing access holes in both wing leading edges and repetitively inspecting the forward attach brackets and straps for cracks.

Full official abstract

This amendment adopts a new airworthiness directive (AD) that applies to all Twin Commander Aircraft Corporation (Twin Commander) 500, 600, and 700 series airplanes. This AD requires installing access holes in both wing leading edges and repetitively inspecting the forward attach brackets and straps for cracks. Reports of cracks in the wing to fuselage attachment brackets and straps, wing station (WS) 24, and fuselage frames prompted this action. The actions specified by this AD are intended to detect cracks at the wing to fuselage attach points, which, if not detected and corrected, could cause structural failure and loss of control of the airplane.

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All Twin Commander (Aero Commander) 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