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Airworthiness directives › 2018-02-02

AD 2018-02-02 Airworthiness Directives; Airbus Helicopters

2018-02-12
2018-01-26
39-19155
FAA-2017-1201
Airframe
—

Applicability*9

This AD becomes effective February 12, 2018.

Compliance

(1) The Manager, Safety Management Section, Rotorcraft Standards Branch, FAA, may approve AMOCs for this AD. Send your proposal to: Rao Edupuganti, 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, we suggest 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

(1) Airbus Helicopters Emergency Alert Service Bulletin No. 62.00.20, No. 62.00.23, No. 62.00.36, No. 62.00.39, and No. 62A015, all Revision 1 and dated May 19, 2017, which are co-published as one document and not incorporated by reference, contain additional information about the subject of this AD. For service information identified in this AD, contact Airbus Helicopters, 2701 N Forum Drive, Grand Prairie, TX 75052; telephone (972) 641-0000 or (800) 232-0323; fax (972) 641-3775; or at http://www.helicopters.airbus.com/website/en/ref/Technical-Support_73.html. You may review a copy of the service information at the FAA, Office of the Regional Counsel, Southwest Region, 10101 Hillwood Pkwy, Room 6N-321, Fort Worth, TX 76177. (2) The subject of this AD is addressed in European Aviation Safety Agency (EASA) AD No. 2017-0089, dated May 17, 2017. You may view the EASA AD on the internet at http://www.regulations.gov by searching for and locating it in Docket No. FAA-2017-1201.

Unsafe condition

(1) Within 30 hours time-in-service (TIS), disconnect the upper end of the oil hose and inspect the inside of the hose for oil. (i) If there is no oil inside the hose, before further flight, replace the M/R mast and oil hose. (ii) If there is oil inside the hose, within 30 hours TIS, remove the oil hose and blow air through the oil hose using an air gun. (A) If no air flows through the oil hose, before further flight, replace the M/R mast and oil hose. (B) If air does flow through the oil hose, inspect the oil hose for any blockage by inserting two cable ties or a semi-rigid piece of wire with a diameter of 2 to 2.3 millimeters (mm) a minimum of 100 mm into each end of the oil hose. ( 1 ) If there is any blockage, before further flight, replace the M/R mast and oil hose. (2) If there is no blockage, re-identify the oil hose by vibro-etching the letter “X” after the P/N. (2) Do not install an oil hose P/N 704A34-412-015 on any helicopter unless it has been inspected as required by this AD.

Affected ADs

This AD defines the unsafe condition as a blocked oil hose. This condition could result in failure of the direct oil jet to lubricate the M/R mast upper bearing, degradation of the M/R mast bearings, loss of M/R transmission function, and subsequent loss of control of the helicopter.

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