EASA SIB 2007-22
PILATUS AIRCRAFT LTD PC-12, PC-12/45 and PC-12/47 aircraft - Main Landing Gear Special Bolts - Identification / Replacement - FOCA Switzerland AD HB-2007-382
Summary
EASA Safety Information Notice No. 2007 – 22 is a safety information notice regarding FOCA Switzerland Airworthiness Directive HB-2007-382. It addresses the identification and replacement of special bolts on the main landing gear of PILATUS AIRCRAFT LTD PC-12, PC-12/45, and PC-12/47 aircraft with Manufacturer Serial Numbers 101 through 749. The notice informs aviation professionals about a safety issue related to inadequate production of these bolts, although it does not affect the type design approval.
What Changed
This document introduces the identification and replacement requirements for certain main landing gear special bolts on specified PILATUS PC-12 series aircraft. It clarifies that the issue is due to production deficiencies rather than type design flaws. The notice serves to inform operators and authorities about the FOCA Switzerland AD HB-2007-382 and recommends compliance with it.
Why It Matters
This safety information is critical for operators, maintenance organizations, and compliance teams as it highlights a serious safety concern involving main landing gear components. Ensuring proper identification and replacement of the affected bolts is essential to maintain aircraft airworthiness and safety. Compliance helps prevent potential landing gear failures and supports regulatory adherence under national aviation authorities.
What To Do
Affected operators should review FOCA Switzerland AD HB-2007-382 for detailed instructions on identifying and replacing the special bolts on the main landing gear. Compliance with the AD is recommended unless mandated by the relevant National Aviation Authority. For further information, stakeholders should contact the EASA Airworthiness Directives, Safety & Research Section via the provided email.
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