Airworthiness directives › 2014-02-02
AD 2014-02-02 Airworthiness Directives; Bell Helicopter Textron Canada Limited (Bell) Helicopters
Applicability*9
This AD becomes effective March 7, 2014.
Compliance
(1) The Manager, Safety Management Group, FAA, may approve AMOCs for this AD. Send your proposal to: Sharon Miles, Aerospace Engineer, FAA, Rotorcraft Directorate, Regulations and Policy Group, 2601 Meacham Blvd., Fort Worth, Texas 76137, telephone (817) 222-5110, email sharon.y.miles@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
The subject of this AD is addressed in Transport Canada Civil Aviation (TCCA) AD CF-2011-43, dated November 10, 2011. You may view the TCCA AD on the internet at http://www.regulations.gov in Docket No. FAA-2013-0525.
Unsafe condition
Within 100 hours time-in-service (TIS): (1) For each M/R blade with an S/N listed in Table 1 of the ASB, measure the M/R blade spar spacer by following the Accomplishment Instructions, Part II A), paragraphs 1 through 3, of the ASB. If the spar spacer measures more than 1.018 inches (25.86 millimeters), reidentify the blade by following Part II A, paragraph 5.a. and Table 3, of the ASB. (2) For each M/R blade with an S/N listed in Table 2 of the ASB, measure the M/R blade spar spacer by following the Accomplishment Instructions, Part II B, paragraphs 1 through 3, of the ASB. If the spar spacer measures more than 1.018 inches (25.86 millimeters), reidentify the blade by following Part II B, paragraph 5 and Table 4, of the ASB. (3) For each reidentified blade, reduce the life limit from 3,600 hours TIS to 2,300 hours TIS, and make an entry on the component history card or equivalent record. (4) Before further flight, remove any blade that exceeds the new retirement life of 2,300 hours TIS.
Affected ADs
This AD defines the unsafe condition as the manufacture of an M/R blade with an oversized spar spacer. This condition could result in failure of an M/R blade and subsequent loss of control of the helicopter.
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