Airworthiness directives › 2021-14-07
AD 2021-14-07 Airworthiness Directives; Airbus Helicopters (Type Certificate Previously Held by Eurocopter France) Helicopters
Models named: AS332C, AS332C1, AS332L, AS332L1, AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350D. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to: (1) Airbus Helicopters (type certificate previously held by Eurocopter France) Model AS332C, AS332C1, AS332L, and AS332L1 helicopters, certificated in any category, as follows: (i) With a Breeze 300 pound electric hoist (hoist) installed, (ii) With a hoist box 91M part number (P/N) 332A67-2875-00 installed, and (iii) Without Eurocopter modification (MOD) 332PCS 78 288, specified in Eurocopter Alert Service Bulletin (ASB) No. 25.01.18 dated November 12, 2002 (ASB No. 25.01.18) installed. (2) Airbus Helicopters (type certificate previously held by Eurocopter France) Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350D, AS355E, AS355F, AS355F1, AS355F2, and AS355N helicopters, certificated in any category, as follows: (i) With a Breeze, TRW, Lucas, or Air Equipement 300 pound hoist installed, (ii) With a hoist box 26M P/N 350A63-1136-00 (AS350-series) or 350A63-1136-01 (AS355-series) installed, and (iii) Without Airbus Helicopters (Eurocopter) MOD 07 3190 installed. Note 1 to paragraph (c)(2): Airbus Helicopters service information refers to a hoist box as a hoist operator's control unit.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
(1) For Model AS332C, AS332C1, AS332L, and AS332L1 helicopters identified in paragraph (c) of this AD, within 100 hours time-in-service or within 2 months, whichever occurs first from January 20, 2004 (the effective date of AD 2003-25-01), modify and re-identify the hoist operator control unit, replace the fuses, and functionally test the hoist operation and the emergency jettison controls in accordance with the Accomplishment Instructions, paragraph 2.B., Operational Procedure, of Eurocopter ASB No. 25.01.18. (2) For Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350D, AS355E, AS355F, AS355F1, AS355F2, and AS355N helicopters identified in paragraph (c) of this AD: (i) Before next flight involving a hoist operation after the effective date of this AD, modify and re-identify the hoist operator control unit, replace the fuses, and functionally test the hoist operation and the emergency jettison controls in accordance with the Accomplishment Instructions, paragraph 2.B., Operational Procedure, of Airbus Helicopters ASB No. 25.00.71, Revision 2, dated May 14, 2019 (ASB 25.00.71 Rev 2), or Airbus Helicopters ASB No. 25.00.79, Revision 3, dated September 24, 2019 (ASB 25.00.79 Rev 3), as applicable to your model helicopter. (ii) Within 30 days after accomplishing the actions required by paragraph (g)(2)(i) of this AD, report the information in Appendix 4.A. of ASB 25.00.71 Rev 2 or ASB 25.00.79 Rev 3, as applicable to your model helicopter, by email to support.technical-avionics.ah@airbus.com. (3) As of the effective date of this AD, do not install a Breeze, TRW, Lucas, or Air Equipement 300 pound hoist identified in paragraphs (c)(1) or (2) of this AD unless the actions required by paragraphs (g)(1) or (2) have been accomplished, as applicable to your model helicopter.
Unsafe condition
This AD was prompted by a test of a hoist that revealed an anomaly in the electrical control circuit. The FAA is issuing this AD to prevent failure of the hoist pyrotechnic squib electrical control unit. Lack of adequate current to activate the hoist pyrotechnic squib prohibits the ability of the pilot to cut the rescue hoist cable in the event of cable entanglement or other emergency. The unsafe condition, if not addressed, could result in subsequent loss of control of the helicopter.
Affected ADs
This AD replaces AD 2003-25-01, Amendment 39-13384 (68 FR 69596, December 15, 2003) (AD 2003-25-01).
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