Pilatus B4-PC11 Airworthiness Directives

Q: What is the newest Airworthiness Directive for the Pilatus B4-PC11?

AD 2005-08-07, published 2005-04-21: Airworthiness Directives; Pilatus Aircraft Limited Models B4-PC11, B4-PC11A, and B4-PC11AF Sailplanes.

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Also known as: B4-PC11A

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What Airworthiness Directives apply to the Pilatus B4-PC11

The FAA has published one Airworthiness Directive that names the Pilatus B4-PC11, published on 2005-04-21.

Newest

AD 2005-08-07 Airworthiness Directives; Pilatus Aircraft Limited Models B4-PC11, B4-PC11A, and B4-PC11AF... 2005-04-21

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AD 2005-08-07 Airworthiness Directives; Pilatus Aircraft Limited Models B4-PC11, B4-PC11A, and B4-PC11AF... 2005-04-21 Repetitive inspection or action

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Airworthiness Directives

1 record

ADAD 2005-08-07Pilatus Aircraft Limited Models B4-PC11, B4-PC11A, and B4-PC11AF Sailplanes2005-06-02Active

2005-08-07

FR doc 05-7563 · 70 FR 20708

AD 2005-08-07Published 2005-04-21Effective 2005-06-02

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.

Pilatus Aircraft Limited Models B4-PC11, B4-PC11A, and B4-PC11AF Sailplanes

Requires you to repetitively inspect the control-column support for cracks and, if any cracks are found, replace the control-column support with a new support.

Full official abstract

Airworthiness Directives; Pilatus Aircraft Limited Models B4-PC11, B4-PC11A, and B4-PC11AF Sailplanes

The FAA adopts a new airworthiness directive (AD) for all Pilatus Aircraft Limited (Pilatus) Models B4-PC11, B4-PC11A, and B4- PC11AF sailplanes. This AD requires you to repetitively inspect the control-column support for cracks and, if any cracks are found, replace the control-column support with a new support. This AD results from mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for Switzerland. We are issuing this AD to detect and correct cracks in the control-column support, which could result in failure of the support. This failure could lead to loss of the primary flight control system.

Source: Federal Register document 05-7563, retrieved 2026-08-17 · checked against the live Federal Register record on 2026-10-02

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Service Bulletins

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