AD 2020-21-12

final rule
Data completeness: 80%

Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes

AD Number
2020-21-12
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2020-0744
FR Citation
85 FR 69492

Applicability

TypeManufacturerModelDetails
aircraft Pilatus Aircraft Ltd Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes
aircraft Aviat Various Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes

Unsafe Condition

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.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

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. As of the effective date of this AD, do not install a grommet P/N 944.87.32.001 on any airplane.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

Within 3 months after the effective date of this AD

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Affected Aircraft

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.

AI-generated summary from the source AD text. Verify against the official source before acting.

Source: Official FAA Source ↗

Retrieved: Apr 4, 2026

Rights: U.S. Government Public Domain

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