Airworthiness directives › 2025-16-03
AD 2025-16-03 Airworthiness Directives; BAE Systems (Operations) Limited Airplanes
Models named: 4101. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to all BAE Systems (Operations) Limited Model 4101 airplanes, certificated in any category.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
This paragraph restates the requirements of paragraph (m) of AD 2023-02-06, with a new terminating action. Within 90 days after March 14, 2023 (the effective date of AD 2023-02-06): Revise the existing maintenance or inspection program, as applicable, by incorporating Subjects 05-10-10, “Airworthiness Limitations”; 05-10-20, “Certification Maintenance Requirements”; and 05-10-30, “Critical Design Configuration Control Limitations (CDCCL)—Fuel System”; of Chapter 05, “Airworthiness Limitations,” of the BAE Systems (Operations) Limited J41 Aircraft Maintenance Manual (AMM), Effectivity Group 403, Revision 44, dated June 15, 2021; or BAE Systems (Operations) Limited J41 AMM, Effectivity Group 408, Revision 44, dated June 15, 2021; as applicable. The initial compliance times for the tasks are at the applicable times specified in paragraphs (g)(1) through (3) of this AD. Accomplishing the revision of the existing maintenance or inspection program required by paragraph (i) of this AD terminates the requirements of this paragraph. (1) For replacement tasks of life limited parts specified in Subject 05-10-10, “Airworthiness Limitations,” of Chapter 05, “Airworthiness Limitations,” of the BAE Systems (Operations) Limited J41 AMM, Effectivity Group 403, Revision 44, dated June 15, 2021; or BAE Systems (Operations) Limited J41 AMM, Effectivity Group 408, Revision 44, dated June 15, 2021; as applicable: Prior to the applicable flight cycles (landings) or flight hours (flying hours) on the part specified in the “Mandatory Life Limits” column in Subject 05-10-10, or within 90 days after March 14, 2023, whichever occurs later. (2) For structurally significant item tasks specified in Subject 05-10-10, “Airworthiness Limitations,” of Chapter 05, “Airworthiness Limitations,” of the BAE Systems (Operations) Limited J41 AMM, Effectivity Group 403, Revision 44, dated June 15, 2021; or BAE Systems (Operations) Limited J41 AMM, Effectivity Group 408, Revision 44, dated June 15, 2021; as applicable: Prior to the accumulation of the applicable flight cycles specified in the “Initial Inspection” column in Subject 05-10-10, or within 90 days after March 14, 2023, whichever occurs later. (3) For certification maintenance requirements tasks specified in Subject 05-10-20, “Certification Maintenance Requirements,” of Chapter 05, “Airworthiness Limitations,” of the BAE Systems (Operations) Limited J41 AMM, Effectivity Group 403, Revision 44, dated June 15, 2021; or BAE Systems (Operations) Limited J41 AMM, Effectivity Group 408, Revision 44, dated June 15, 2021; as applicable: Prior to the accumulation of the applicable flight hours specified in the “Time Between Checks” column in Subject 05-10-20, or within 90 days after March 14, 2023, whichever occurs later; except for tasks that specify “first flight of the day” in the “Time Between Checks” column in Subject 05-10-20, the initial compliance time is the first flight of the next day after accomplishing the revision required by paragraph (g) of this AD, or within 90 days after March 14, 2023, whichever occurs later.
Unsafe condition
This AD was prompted by a determination that new or more restrictive airworthiness limitations are necessary. The FAA is issuing this AD to address fatigue damage of various airplane structures and failure of certain structurally significant items, which could result in reduced structural integrity of the airplane. The FAA is also issuing this AD to address fuel vapor ignition sources, which could result in a fuel tank explosion and consequent loss of the airplane.
Affected ADs
This AD replaces AD 2023-02-06, Amendment 39-22313 (88 FR 7851, February 7, 2023) (AD 2023-02-06).
Read the original on the Federal Register →
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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