Airworthiness directives › 2020-15-16
AD 2020-15-16 Airworthiness Directives; Leonardo S.p.A (Type Certificate Previously Held by Agusta S.p.A) Helicopters
Models named: A109E, A109K2, A109S, AW109SP, A119, AW119 MKII. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to Leonardo S.p.A. (type certificate previously held by Agusta S.p.A.) Model A109E, A109K2, A109S, AW109SP, A119, and AW119 MKII helicopters, certificated in any category, with a tail rotor blade retention bolt (bolt) having part number (P/N) 709-0160-57-101 installed.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
(1) Before further flight: (i) For Model A109E and A109K2 helicopters, remove from service any bolt having P/N 709-0160-57-101 that has 800 or more hours time-in-service (TIS). If the hours TIS is unknown, remove the bolt from service. Thereafter, remove from service any bolt having P/N 709-0160-57-101 before accumulating 800 hours TIS. (ii) For Model A109S, AW109SP, A119, and AW119 MKII helicopters, remove from service any bolt having P/N 709-0160-57-101 that has 3,200 or more landings. If the number of landings is unknown, remove the bolt from service. Thereafter, remove from service any bolt having P/N 709-0160-57-101 before accumulating 3,200 landings. For purposes of this AD, a landing is counted anytime a helicopter lifts off into the air and then lands again regardless of the duration of the landing and regardless of whether the engine is shutdown. (iii) Remove from service any bolt having P/N 709-0160-57-101 that has 800 or more hours TIS, or 3,200 or more landings, that has been interchanged between different model helicopters listed in paragraphs (g)(1)(i) and (ii) of this AD. If the hours TIS or number of landings is unknown, remove the bolt from service. Thereafter, remove from service any bolt having P/N 709-0160-57-101 that has been interchanged between different model helicopters listed in paragraphs (g)(1)(i) and (ii) of this AD before accumulating 800 hours TIS or 3,200 landings, whichever occurs first. (2) Within 25 hours TIS after the effective date of this AD, and thereafter at intervals not to exceed 200 hours TIS, remove each bolt having P/N 709-0160-57-101. Prior to cleaning, using a 10X or higher power magnifying glass, inspect each bolt having P/N 709-0160-57-101 for any crack in the area depicted in Figure 1 of Leonardo Helicopters Mandatory Bollettino Tecnico No. 109EP- 149, 109K-72, 109S-072, 109SP-105, or 119-080, all dated August 19, 2016, as applicable to your model helicopter. (i) If there is any crack, replace the bolt with an airworthy bolt before further flight. (ii) If there are no cracks, before further flight, clean and degrease the inspection area of the bolt with solvent, and using a 10X or higher power magnifying glass, inspect each bolt having P/N 709-0160-57-101 for any crack in the area depicted in Figure 1 of Leonardo Helicopters Mandatory Bollettino Tecnico No. 109EP-149, 109K-72, 109S-072, 109SP-105, or 119-080, all dated August 19, 2016, as applicable to your model helicopter. If there is any crack, replace the bolt with an airworthy bolt before further flight. (3) As of the effective date of this AD, installation of a bolt having P/N 709-0160-57-101 is allowed, provided that the bolt has passed an inspection as required by paragraph (g)(2) of this AD.
Unsafe condition
This AD was prompted by the discovery of a cracked bolt, and a determination that repetitive inspections of the bolt are needed to address the unsafe condition. The FAA is issuing this AD to address cracked bolts, which could result in failure of the tail rotor and loss of control of the helicopter.
Affected ADs
This AD replaces AD 2018-07-08, Amendment 39-19239 (83 FR 15495, April 11, 2018).
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