Airworthiness directives › 2013-20-13
AD 2013-20-13 Airworthiness Directives; Bell Helicopter Textron Canada Limited (Bell) Helicopters
Applicability*9
This AD becomes effective December 10, 2013.
Compliance
(1) The Manager, Safety Management Group, FAA, may approve AMOCs for this AD. Send your proposal to: Chinh Vuong, Aviation Safety Engineer, Safety Management Group, Rotorcraft Directorate, FAA, 2601 Meacham Blvd., Fort Worth, Texas 76137; telephone (817) 222-5110; email chinh.vuong@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) Bell Alert Service Bulletin (ASB) No. 206-07-115, Revision C, dated February 4, 2009, and Bell ASB No. 206L-07-146, Revision B, dated March 3, 2009, which are not incorporated by reference, contain additional information about the subject of this AD. For service information identified in this AD, contact Bell Helicopter Textron Canada Limited, 12,800 Rue de l'Avenir, Mirabel, Quebec J7J1R4; telephone (450) 437-2862 or (800) 363-8023; fax (450) 433-0272; or at http://www.bellcustomer.com/files/. You may review a copy of the service information at the FAA, Office of the Regional Counsel, Southwest Region, 2601 Meacham Blvd., Room 663, Fort Worth, Texas 76137. (2) The subject of this AD is addressed in Transport Canada Civil Aviation (TCCA) AD No. CF-2007-13R2, dated December 9, 2009. You may view the TCCA AD on the internet in the AD Docket at http://www.regulations.gov.
Unsafe condition
Within 30 days: (1) For Model 206B helicopters: (i) Revise the Operating Limitations section of the Model 206B Rotorcraft Flight Manual (RFM) by inserting Section 1, Operating Limitations, page 1-2A, of Bell BHT-206B-FM-1, revision B-50, dated December 8, 2008. (ii) Remove placard part number (P/N) 230-075-213-121, if installed. (iii) Install placard P/N 230-075-213-125, or equivalent, on the instrument panel directly below the dual tachometer. (2) For Model 206L helicopters: (i) Revise the Operating Limitations section of the Model 206L RFM by inserting Section 1, Operating Limitations, page 1-4B, of Bell BHT-206L-FM-1, revision 28, dated December 8, 2008. (ii) Remove placard P/N 230-075-213-123, if installed. (ii) Install placard P/N 230-075-213-127, or equivalent, on the instrument panel below the dual tachometer.
Affected ADs
This AD defines the unsafe condition as a third stage turbine vibration, which could result in turbine failure, engine power loss, and subsequent loss of control of the helicopter.
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