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Airworthiness Directive

AD 2001-10-04 66 FR 27014 Active

Federal Aviation Administration · 14 CFR part 39

FR document
01-11968
Amendment
39-12230
Published
2001-05-16
Effective
2001-06-08
Models covered
1
Last live check
2026-09-30

Printed from https://aircraftdirectives.com/ad/2001-10-04 · 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

2001-10-04

FR doc 01-11968 · 66 FR 27014

AD 2001-10-04Published 2001-05-16Effective 2001-06-08

Superseded by 2001-10-04 R1

Supersedence is read from the Federal Register text of the newer AD — the FAA publishes no structured field for it — and names only ADs held in our index.

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 inspection of the wing lower spar cap for cracks on Air Tractor, Inc.

Full official abstract

This amendment supersedes Airworthiness Directive (AD) 2000- 14-51, which requires inspection of the wing lower spar cap for cracks on Air Tractor, Inc. (Air Tractor) Models AT-501, AT-502, and AT-502A airplanes, and modification or replacement of any cracked wing lower spar cap. This AD lowers the safe life for the wing lower spar cap on Air Tractor AT-400, AT-500, and AT-800 series airplanes. This AD is the result of numerous reports of cracks in the \3/8\-inch bolthole of the wing lower spar cap on the affected airplanes. The actions specified by this AD are intended to prevent fatigue cracks from occurring in the wing lower spar cap before the originally established safe life is reached. Fatigue cracks in the wing lower spar cap, if not detected and corrected, could result in the wing separating from the airplane during flight.

More directives for Air Tractor AT-Series

  1. AD 2026-16-12 Airworthiness Directives; Air Tractor, Inc. Airplanes 2026-08-14
  2. AD 2024-16-06 Airworthiness Directives; Air Tractor, Inc. Airplanes 2024-08-20
  3. AD 2023-15-07 Airworthiness Directives; Air Tractor, Inc. Airplanes 2023-08-09
  4. AD 2021-05-14 Airworthiness Directives; Air Tractor, Inc., Airplanes 2021-03-25
  5. AD 2014-16-17 Airworthiness Directives; Air Tractor, Inc. Airplanes 2014-08-25

All Air Tractor AT-Series directives

View on Federal Register (opens in a new tab) Search DRS manually for AD 2001-10-04 (opens in a new tab)

Applies to 1 model in our index