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Airworthiness Directive

AD 97-17-03 62 FR 43926 Superseded

Federal Aviation Administration · 14 CFR part 39

Requires inspecting the \1/4\-inch and \5/16\-inch bolt hole areas on the lower spar caps for fatigue cracking on Ayres S2R series airplanes, and replacing any lower spar cap if fatigue cracking is found.

Superseded by AD 2000-11-16Federal Register (opens in a new tab)

FR document
97-21788
Amendment
39-10105
Published
1997-08-18
Effective
1997-09-05
Models covered
1

Last live check: 2026-08-19

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AD

97-17-03

FR doc 97-21788 · 62 FR 43926

AD 97-17-03Published 1997-08-18Effective 1997-09-05

Superseded by 2000-11-16 Supersedes 97-13-11

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 inspecting the \1/4\-inch and \5/16\-inch bolt hole areas on the lower spar caps for fatigue cracking on Ayres S2R series airplanes, and replacing any lower spar cap if fatigue cracking is found.

Full official abstract

This amendment supersedes Airworthiness Directive (AD) 97-13- 11, which currently requires inspecting the \1/4\-inch and \5/16\-inch bolt hole areas on the lower spar caps for fatigue cracking on Ayres S2R series airplanes, and replacing any lower spar cap if fatigue cracking is found. That AD resulted from an accident on an Ayres S2R series airplane where the wing separated from the airplane in flight. AD 97-13-11 incorrectly references the Ayres Model S2R-R1340 airplanes as Model S2R-1340R. This AD requires the same actions as AD 97-13-11, but corrects the designation of the Model S2R-R1340 airplanes. The actions specified by this AD are intended to detect fatigue cracking of the lower spar caps, which, if not corrected, could result in the wing separating from the airplane with consequent loss of control of the airplane.

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All Thrush S2R directives

View on Federal Register (opens in a new tab) Search DRS manually for AD 97-17-03 (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