Airworthiness directives › 2020-20-02
AD 2020-20-02 Airworthiness Directives; Leonardo S.p.a. Helicopters
Applicability*9
This AD becomes effective November 3, 2020.
Compliance
(1) The Manager, Rotorcraft Standards Branch, FAA, may approve AMOCs for this AD. Send your proposal to Eric Haight, Aviation Safety Engineer, Regulations and Policy Section, Rotorcraft Standards Branch, FAA, 10101 Hillwood Pkwy., Fort Worth, TX 76177; telephone 817-222-5110; email 9-ASW-FTW-AMOC-Requests@faa.gov. (2) For operations conducted under a 14 CFR part 119 operating certificate or under 14 CFR part 91, subpart K, the FAA suggests that you notify your principal inspector, or lacking a principal inspector, the manager of the local flight standards district office or certificate holding district office, before operating any aircraft complying with this AD through an AMOC.
Required actions
The subject of this AD is addressed in European Aviation Safety Agency (now European Union Aviation Safety Agency) (EASA) AD No. 2016-0261R1, dated February 13, 2020. You may view the EASA AD on the internet at https://www.regulations.gov in Docket No. FAA-2020-0413.
Unsafe condition
(1) Within 25 hours time-in-service (TIS) and thereafter at intervals not to exceed 200 hours TIS, using a mirror and a light, inspect the weld beads of each fire extinguisher bottle bypass outlet assembly for a crack in the areas depicted in Figure 2 of Leonardo Helicopters Bollettino Tecnico (BT) No. 109EP-152, BT No. 109S-073, or BT No. 109SP-108, each dated December 15, 2016, or Alert Service Bulletin No. 109S-073 Revision A, dated November 23, 2018, as applicable to your model helicopter. Pay particular attention to each circled area. If there is a crack, before further flight, replace the fire extinguisher bottle. (2) After the effective date of this AD, do not install a fire extinguisher bottle P/N 27300-1 on any helicopter unless it has been inspected as required by paragraph (e)(1) of this AD.
Affected ADs
This AD defines the unsafe condition as a crack on a fire extinguisher bottle bypass outlet assembly. This condition could result in failure of the fire extinguishing system in the event of a fire in the engine area and subsequent loss of control of the helicopter.
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