Airworthiness directives › 2020-21-12
AD 2020-21-12 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, all serial numbers, with an emergency exit grommet part number (P/N) 944.87.32.001 installed, certificated in any category.
Compliance
Unless already done, do the following actions in paragraphs (f)(1) and (2) of this AD. (1) Within 3 months after the effective date of this AD, replace each grommet P/N 944.87.32.001 holding the upper panel assembly in position on the LH and RH emergency exits with grommet P/N 525.26.24.035 in accordance with the Accomplishment Instructions, section 3.B., of Pilatus Aircraft Ltd PC-24 Service Bulletin No. 25-005, dated August 12, 2019. (2) As of the effective date of this AD, do not install a grommet P/N 944.87.32.001 on any airplane.
Required actions
The Manager, International Validation Branch, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. Send information to ATTN: Doug Rudolph, Aerospace Engineer, FAA, General Aviation & Rotorcraft Section, International Validation Branch, 901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 329-4059; fax: (816) 329-4090; email: doug.rudolph@faa.gov. Before using any approved AMOC on any airplane to which the AMOC applies, notify your appropriate principal inspector (PI) in the FAA Flight Standards District Office (FSDO), or lacking a PI, your local FSDO. Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the local flight standards district office/certificate holding district office.
Unsafe condition
This AD was prompted by a report that after exposure to low temperatures, the vinyl grommets that hold the upper panel assembly in position on the left-hand (LH) and right-hand (RH) emergency exits can become rigid. This unsafe condition, if not addressed, could result in failure of the emergency exits to open during an evacuation.
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