Airworthiness Directive

AD 2021-21-10 86 FR 61063 Active

Federal Aviation Administration · 14 CFR part 39

Requires inspecting the wing internal skin for chafing and taking any necessary corrective actions.

FR document
2021-24084
Amendment
39-21770
Published
2021-11-05
Effective
2021-12-10
Models covered
1

Last live check: 2026-08-19

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AD

2021-21-10

FR doc 2021-24084 · 86 FR 61063

AD 2021-21-10Published 2021-11-05Effective 2021-12-10

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 wing internal skin for chafing and taking any necessary corrective actions.

Full official abstract

The FAA is adopting a new airworthiness directive (AD) for certain Pacific Aerospace Limited Model 750XL airplanes. This AD was prompted by mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI identifies the unsafe condition as chafing damage in the port wing skin caused by the fuel system finger filters. This AD requires inspecting the wing internal skin for chafing and taking any necessary corrective actions. The FAA is issuing this AD to address the unsafe condition on these products.

More directives for Pacific Aerospace 750XL/FU24

  1. AD 2021-23-16 Airworthiness Directives; Pacific Aerospace Limited Airplanes Effective 2022-01-11
  2. AD 2021-23-19 Airworthiness Directives; Pacific Aerospace Limited Airplanes Effective 2022-01-11
  3. AD 2021-21-11 Airworthiness Directives; Pacific Aerospace Limited Airplanes Effective 2021-12-10
  4. AD 2021-20-20 Airworthiness Directives; Pacific Aerospace Limited Airplanes Effective 2021-11-22
  5. AD 2020-17-08 Airworthiness Directives; Pacific Aerospace Limited Airplanes Effective 2020-09-14

All Pacific Aerospace 750XL/FU24 directives

Applies to 1 model in our index