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Airworthiness Directive

AD 96-22-13 61 FR 57315 Active

Federal Aviation Administration · 14 CFR part 39

Requires inspecting for loose or sheared rivets in the hinge brackets on the horizontal stabilizer and inspecting for incorrect spacing tolerance of the hinge brackets.

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FR document
96-27676
Amendment
39-9801
Published
1996-11-06
Effective
1996-12-27
Models covered
1

Last live check: 2026-08-19

Printed from https://aircraftdirectives.com/ad/96-22-13 · AircraftDirectives restates official FAA and manufacturer records; the official sources named on this sheet control. Not an airworthiness determination.

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AD

96-22-13

FR doc 96-27676 · 61 FR 57315

AD 96-22-13Published 1996-11-06Effective 1996-12-27

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 for loose or sheared rivets in the hinge brackets on the horizontal stabilizer and inspecting for incorrect spacing tolerance of the hinge brackets.

Full official abstract

This amendment adopts a new airworthiness directive (AD) that applies to Pilatus Aircraft Ltd. (Pilatus), Model PC-6 airplanes. This action requires inspecting for loose or sheared rivets in the hinge brackets on the horizontal stabilizer and inspecting for incorrect spacing tolerance of the hinge brackets. If the rivets are found loose or sheared, the AD requires replacing the rivets and also re- positioning the hinge brackets, if found incorrectly spaced. Several reports of rivets shearing on the hinge brackets prompted this action. The actions specified by this AD are intended to prevent structural failure of the hinge bracket on the horizontal stabilizer, which could result in partial or complete loss of control of the horizontal stabilizer and loss of control of the airplane.

More directives for Pilatus PC-6 Porter

  1. AD 2021-24-22 Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes Effective 2022-01-25
  2. AD 2021-11-08 Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes Effective 2021-07-12
  3. AD 2020-16-02 Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes Effective 2020-09-09
  4. AD 2020-11-06 Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes Effective 2020-06-30
  5. AD 2019-10-07 Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes Effective 2019-07-10

All Pilatus PC-6 Porter 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