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Airworthiness Directive

AD 98-16-15 63 FR 42201 Active

Federal Aviation Administration · 14 CFR part 39

FR document
98-20840
Amendment
39-10691
Published
1998-08-07
Effective
1998-09-21
Models covered
1
Last live check
2026-10-01

Printed from https://aircraftdirectives.com/ad/98-16-15 · 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

98-16-15

FR doc 98-20840 · 63 FR 42201

AD 98-16-15Published 1998-08-07Effective 1998-09-21

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 an inspection opening in the area of the main spar web, repetitively inspecting the area at the main spar web for cracks, and repairing or replacing any cracked part.

Full official abstract

This amendment adopts a new airworthiness directive (AD) that applies to certain British Aerospace Model B.121 Series 1, 2, and 3 airplanes. This AD requires installing an inspection opening in the area of the main spar web, repetitively inspecting the area at the main spar web for cracks, and repairing or replacing any cracked part. This AD also requires installing nuts of improved design at the wing to fuselage main-spar attachment fittings. This AD is the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for the United Kingdom. The actions specified by this AD are intended to prevent structural failure of the main spar web area caused by fatigue cracking or separation of the wing caused by loose nuts at the wing to fuselage main-spar attachment fittings, which could result in loss of control of the airplane.

More directives for Beagle B.121 Pup

  1. AD 2008-09-19 Airworthiness Directives; De Havilland Support Limited Model Beagle B.12... 2008-05-02
  2. AD 98-26-05 Airworthiness Directives; British Aerospace (Operations) Limited Model B... 1998-12-18

All Beagle B.121 Pup directives

View on Federal Register (opens in a new tab) View this AD in FAA DRS (opens in a new tab)

Applies to 1 model in our index