Airworthiness Directive · Amendment 39-21750 · Emergency flotation section
Leonardo S.p.a. Helicopters
This AD applies to Leonardo S.p.a. Model AB139, AW139, AB412, and AB412 EP helicopters, certificated in any category, with an affected part as identified in European Union Aviation Safety Agency (EASA) AD 2019-0311, dated December 19, 2019 (EASA AD 2019-0311), installed.
The FAA is adopting a new airworthiness directive (AD) for certain Leonardo S.p.a. Model AB139, AW139, AB412, and AB412 EP helicopters. This AD was prompted by failure of an Emergency Flotation System (EFS) float compartment to inflate during maintenance of the EFS. This AD requires inspecting certain EFSs and depending on the results, marking certain parts or removing certain parts from service, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.
Except as specified in paragraph (h) of this AD: Comply with all required actions and compliance times specified in, and in accordance with, EASA AD 2019-0311.
(1) Where EASA AD 2019-0311 refers to its effective date, this AD requires using the effective date of this AD.
(2) Where EASA AD 2019-0311 requires compliance in terms of flight hours, this AD requires using hours time-in-service (TIS).
(3) Where paragraph (1) of EASA AD 2019-0311 requires inspecting each affected part within the compliance time specified in Table 2 of its AD, this AD requires:
(i) Inspecting each affected part in Group A within 100 hours TIS after the effective date of this AD.
(ii) Inspecting each affected part in Group C within 15 hours TIS after the effective date of this AD.
(4) Where the service information referenced in paragraph (1) of EASA AD 2019-0311 specifies “operator able to perform the EFS maintenance in accordance with Aircraft Maintenance Manual (AMM) or Aircraft Maintenance Publication (AMP) can perform the procedure defined in this Service Bulletin,” this AD requires that the work be accomplished by a mechanic that meets the requirements of 14 CFR part 65 subpart D.
(5) Where paragraph (2) of EASA AD 2019-0311 specifies replacing an EFS supply hose that fails the inspection, this AD requires removing the hose from service.
(6) This AD does not require the “Remarks” section of EASA AD 2019-0311.
Although the service information referenced in EASA AD 2019-0311 specifies to submit certain information to the manufacturer, this AD does not include that requirement.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
