Airworthiness directives › 2021-26-14
AD 2021-26-14 Airworthiness Directives; Airbus Helicopters
Models named: AS332L2, Model EC225LP, EC225LP. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to Airbus Helicopters Model AS332L2 and Model EC225LP helicopters, certificated in any category, as specified in paragraphs (c)(1) and (2) of this AD. (1) Model AS332L2 helicopters equipped with extended aluminum splices on frame 5295 installed in accordance with Airbus Helicopters (AH) Modification (MOD) 0726517, Eurocopter (EC) AS332 Service Bulletin (SB) 53.01.52, or AH repair design 332-53-507-06, 332-53-21-07, or 332-53-82-06; except helicopters embodying AH MOD 0728463, AH SB AS 332-53.01.97, or repair design 332-53-409-12, 332-53-1284-13, 332-53-1079-16, or 332-53-1358-16. Note 1 to paragraph (c)(1): As referenced in paragraphs (c)(1) and (2) of this AD, helicopters with AH MOD 0728463 installed have replaced the aluminum splices with steel splices. (2) Model EC225LP helicopters equipped with extended aluminum splices on frame 5295 installed in accordance with AH MOD 0726517, or EC EC225 SB 53-003 (pre AH MOD 0726493 and post AH MOD 0726517), except helicopters embodying AH MOD 0728463, or SB EC225-53-061. Note 2 to paragraph (c)(2): Helicopters with AH MOD 0726493 have installed steel splice kit part number 332A08-2649-3072.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
This paragraph retains the requirements of paragraph (e) of AD 2018-11-01, with new service information and corrective actions (modification). (1) Before a splice reaches 1,700 hours time-in-service (TIS), within 50 hours TIS, or before the helicopter reaches 11,950 hours TIS, whichever occurs latest, do the following. (i) Install the rail support cut-out and identify the left-hand (LH) and right-hand (RH) junction profile, in accordance with the Accomplishment Instructions, paragraph 3.B.2., of Airbus Helicopters Alert Service Bulletin (ASB) No. EC225-05A038, Revision 1, dated February 9, 2021 (Airbus Helicopters ASB No. EC225-05A038, Revision 1); or Airbus Helicopters ASB No. AS332-05.00.97, Revision 1, dated February 9, 2021 (Airbus Helicopters ASB No. AS332-05.00.97, Revision 1); whichever is applicable to your helicopter. (ii) Inspect each splice for a crack in the area depicted as Area Y in Figure 3 of Airbus Helicopters ASB No. EC225-05A038, Revision 1; or Airbus Helicopters ASB No. AS332-05.00.97, Revision 1; whichever is applicable to your helicopter. If a crack exists, do the applicable action required by paragraph (g)(1)(ii)(A) or (B) of this AD. (A) For any cracking found before the effective date of this AD: Repair or replace the splice before further flight. (B) For any cracking found on or after the effective date of this AD: Before further flight, modify the helicopter in accordance with paragraph 3.B.2. of the Accomplishment Instructions of Airbus Helicopters Service Bulletin (SB) No. AS332-53.01.97, Revision 0, dated February 9, 2021 (Airbus Helicopters SB No. AS332-53.01.97, Revision 0); or Service Bulletin No. EC225-53-061, Revision 0, dated February 9, 2021 (Airbus Helicopters SB No. EC225-53-061, Revision 0); as applicable to your helicopter; except as specified in paragraph (h) of this AD. (2) Thereafter at intervals not to exceed 110 hours TIS, inspect each splice for a crack in the area depicted as Area Y in Figure 3 of Airbus Helicopters ASB No. EC225-05A038, Revision 1; or Airbus Helicopters ASB No. AS332-05.00.97, Revision 1; whichever is applicable to your helicopter. If a crack exists, do the applicable actions required by paragraph (g)(2)(i) or (ii) of this AD. Accomplishing the modification specified in paragraph (g)(1)(ii)(B) and (g)(2)(ii) of this AD terminates the inspections required by this paragraph. (i) For any cracking found before the effective date of this AD: Repair or replace the splice before further flight. (ii) For any cracking found on or after the effective date of this AD: Before further flight, modify the helicopter in accordance with paragraph 3.B.2. of the Accomplishment Instructions of Airbus Helicopters SB No. AS332-53.01.97, Revision 0; or Airbus Helicopters SB No. EC 225-53-061, Revision 0; as applicable to your helicopter; except as specified in paragraph (h) of this AD.
Unsafe condition
This AD was prompted by reports of cracks on frame 5295 and on aluminum splices installed to prevent those cracks. The FAA is issuing this AD to address cracking on frame 5295 and on the inner skins. The unsafe condition, if not addressed, could result in loss of structural integrity of the helicopter frame and subsequent loss of control of the helicopter.
Affected ADs
This AD replaces AD 2018-11-01, Amendment 39-19289 (83 FR 23778, May 23, 2018) (AD 2018-11-01).
Read the original on the Federal Register →
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