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Airworthiness Directive

AD 98-25-01 63 FR 66743 Active

Federal Aviation Administration · 14 CFR part 39

Requires installing a new flap actuator overtravel stop and a roll pin through the overtravel stop and jack screw on certain Air Tractor, Inc.

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FR document
98-32046
Amendment
39-10922
Published
1998-12-03
Effective
1999-01-19
Models covered
1

Last live check: 2026-08-19

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AD

98-25-01

FR doc 98-32046 · 63 FR 66743

AD 98-25-01Published 1998-12-03Effective 1999-01-19

Supersedes 96-23-19

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 installing a new flap actuator overtravel stop and a roll pin through the overtravel stop and jack screw on certain Air Tractor, Inc.

Full official abstract

This amendment supersedes Airworthiness Directive (AD) 96-23- 19, which currently requires installing a new flap actuator overtravel stop and a roll pin through the overtravel stop and jack screw on certain Air Tractor, Inc. (Air Tractor) Models AT-300, AT-400, and AT- 500 series airplanes. This AD requires replacing the existing flap actuator overtravel stop with a new one of improved design. This AD is the result of reports of the jack screw breaking through the roll pin hole on three of the affected airplanes that were already in compliance with AD 96-23-19. The actions specified by this AD are intended to prevent interference between the flap pushrod and the aileron pushrod caused by the flap actuator overtravel nut disengaging, which could result in loss of aileron control.

More directives for Air Tractor AT-Series

  1. AD 2026-16-12 Airworthiness Directives; Air Tractor, Inc. Airplanes Effective 2026-08-31
  2. AD 2024-16-06 Airworthiness Directives; Air Tractor, Inc. Airplanes Effective 2024-09-04
  3. AD 2023-15-07 Airworthiness Directives; Air Tractor, Inc. Airplanes Effective 2023-08-09
  4. AD 2021-05-14 Airworthiness Directives; Air Tractor, Inc., Airplanes Effective 2021-04-29
  5. AD 2014-16-17 Airworthiness Directives; Air Tractor, Inc. Airplanes Effective 2014-09-29

All Air Tractor AT-Series 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