2024-08-04: Time Limits/Maintenance Checks

1. The authority citation for part 39 continues to read as follows: Authority: 49 U.S.C. 106(g), 40113, 44701. 2. The FAA amends § 39.13 by adding the following new airworthiness directive: 2024-08-04 De Havilland Aircraft of Canada Limited (Type Certificate Previously Held by Bombardier, Inc.): Amendment 39-22737; Docket No. FAA-2023-2137; Project Identifier MCAI-2022-01389-T. (a) Effective Date This airworthiness directive (AD) is effective June 20, 2024. (b) Affected ADs None. (c) Applicability This AD applies to all De Havilland Aircraft of Canada Limited Model DHC-8-401 and -402 airplanes, certificated in any category. (d) Subject Air Transport Association (ATA) of America Code 05, Time Limits/Maintenance Checks. (e) Reason This AD was prompted by a determination that new or more restrictive airworthiness limitations are necessary. The FAA is issuing this AD to address new or more restrictive maintenance interval limitations. Failure to adhere to the specified interval limitations may result in reduced structural integrity of the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Maintenance or Inspection Program Revision Within 60 days after the effective date of this AD, revise the existing maintenance or inspection program, as applicable, to incorporate the information specified in figure 1 to paragraph (g) of this AD. The initial compliance time for each task in the AMM Task column of figure 1 to paragraph (g) of this AD is at the time specified in the initial compliance time column of figure 1 to paragraph (g) of this AD or within 12 months after the effective date of this AD, whichever occurs later. Figure 1 to Paragraph (g)-Maintenance or Inspection Program Revision Figure 1 to Paragraph ( g )-Maintenance or Inspection Program Revision Effectivity Initial compliance time Interval limitation AMM task All 10,000 total flight hours (FH) 10,000 FH 21-31-00-710-801 All 20,000 total FH 20,000 FH 21-31-00-710-803 All 20,000 total FH 20,000 FH 21-31-00-710-804 All 35,000 total FH 35,000 FH 22-11-00-720-803 All 30,000 total FH 30,000 FH 26-20-00-900-801 All 30,000 total FH 30,000 FH 26-20-00-900-802 All 30,000 total FH 30,000 FH 26-20-00-900-805 All 30,000 total FH 30,000 FH 26-20-00-900-807 All 30,000 total FH 30,000 FH 26-20-00-900-803 All 30,000 total FH 30,000 FH 26-20-00-900-804 All 20,000 total FH 20,000 FH 26-20-00-710-801 All 20,000 total FH 20,000 FH 28-21-00-710-801 All 10,000 total FH 10,000 FH 29-12-00-720-803 All 4,950 total FH 4,950 FH 29-12-00-720-805 All 4,950 total FH 4,950 FH 29-12-00-720-802 All 4,950 total FH 4,950 FH 29-12-00-720-804 All 30,000 total FH 30,000 FH 30-11-00-710-802 All 5,280 total FH 5,280 FH 31-41-00-710-802 All 1,760 total FH 1,760 FH 32-11-00-210-802 All 30,000 total FH 30,000 FH 52-24-00-210-802 All 4,400 total FH 4,400 FH 61-20-00-710-802 All 150 total FH 150 FH 77-31-00-710-803 (h) No Alternative Actions or Intervals After the existing maintenance or inspection program has been revised as required by paragraph (g) of this AD, no alternative actions ( e.g., inspections) or intervals may be used unless the actions or intervals are approved as an alternative method of compliance (AMOC) in accordance with the procedures specified in paragraph (i)(1) of this AD. (i) Other FAA AD Provisions The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): 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. In accordance with 14 CFR 39.19, send your request to your principal inspector or responsible Flight Standards Office, as appropriate. If sending information directly to the International Validation Branch, send it to the attention of the person identified in paragraph (j)(2) of this AD. Information may be emailed to: [email protected]. Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the responsible Flight Standards Office. (2) Contacting the Manufacturer: For any requirement in this AD to obtain instructions from a manufacturer, the instructions must be accomplished using a method approved by the Manager, International Validation Branch, FAA; or Transport Canada; or De Havilland Aircraft of Canada Limited's Transport Canada Design Approval Organization (DAO). If approved by the DAO, the approval must include the DAO-authorized signature. (j) Additional Information (1) Refer to Transport Canada AD CF-2022-59, dated October 27, 2022, for related information. This Transport Canada AD may be found in the AD docket at regulations.gov under Docket No. FAA-2023-2137. (2) For more information about this AD, contact Fatin Saumik, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone: 516-228-7300; email: [email protected]. (k) Material Incorporated by Reference None. Issued on April 17, 2024. Victor Wicklund, Deputy Director, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2024-08577 Filed 5-15-24; 8:45 am]BILLING CODE 4910-13-P