Airworthiness directives › 2021-26-21
AD 2021-26-21 Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes
Makes named: pilatus. Models named: PC-24. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to Pilatus Aircraft Ltd. Model PC-24 airplanes, serial numbers 101 through 184, certificated in any category.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Within 5 months after the effective date of this AD, modify the fuel drain pipe routing and install the drain mast by following paragraphs A. and B. of the Accomplishment Instructions in Pilatus PC-24 Service Bulletin No. 28-003, Revision 1, dated January 23, 2020.
Unsafe condition
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 describes the unsafe condition as insufficient performance of the fuel drain system that could lead to fire and damage of the airplane. The FAA is issuing this AD to prevent fuel contamination of the inboard rear fuselage. If not addressed, this unsafe condition, in combination with an ignition source, could result in fire and loss of control of the airplane.
Affected ADs
None.
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1