AD 2021-20-20

final rule
Data completeness: 70%

Airworthiness Directives; Pacific Aerospace Limited Airplanes

AD Number
2021-20-20
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2021-0576
FR Citation
86 FR 57558

Applicability

TypeManufacturerModelDetails
aircraft Aviat Various Airworthiness Directives; Pacific Aerospace Limited Airplanes

Unsafe Condition

Failure of the installation of the wing leading edge tank fuel pickup assembly in a pre-stressed condition, which could cause cracks in the wing spar web or the fuel pickup assembly pipe.

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

Required Actions

Within 165 hours time-in-service after the effective date of this AD, inspect the angle of the support bracket on the wing leading edge tank fuel pickup assembly and, before further flight, take any necessary additional actions and corrective actions by following the Accomplishment Instructions in Pacific Aerospace Mandatory Service Bulletin PACSB/XL/109, Issue 1, dated January 16, 2019.

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

Compliance Time

Within 165 hours time-in-service after the effective date of this AD

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

Affected Aircraft

Pacific Aerospace Limited Model 750XL airplanes, serial numbers 177, 186 through 213, 220, 8001, and 8002, 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 6, 2026

Rights: U.S. Government Public Domain

This site is not affiliated with or endorsed by the FAA. Always verify with official sources.