Airworthiness directives › 2006-13-12
AD 2006-13-12 Airworthiness Directives; Pilatus Aircraft Ltd. Models PC-6, PC-6-H1, PC-6-H2, PC-6/350, PC-6/350-H1, PC-6/350-H2, PC-6/A, PC-6/A-H1, PC-6/A-H2, PC-6/B-H2, PC-6/B1-H2, PC-6/B2-H2, PC-6/B2-H4, PC-6/C-H2, and PC-6/C1-H2 Airplanes
Makes named: pilatus. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD affects the following Models: PC-6, PC-6-H1, PC-6-H2, PC-6/350, PC-6/350-H1, PC-6/350-H2, PC-6/A, PC-6/A-H1, PC-6/A-H2, PC-6/B-H2, PC-6/B1-H2, PC-6/B2-H2, PC-6/B2-H4, PC-6/C-H2, and PC-6/C1-H2 airplanes that are equipped with turbo-prop engines and certificated in any category: (1) Group 1 (maintains the actions from AD 98-12-01): All manufacturer serial numbers (MSN) up to and including 915. (2) Group 2: MSN 2001 through 2092. Note: These airplanes are also identified as Fairchild Republic Company PC-6 airplanes, Fairchild Heli Porter PC-6 airplanes, or Fairchild-Hiller Corporation PC-6 airplanes.
Compliance
To address this problem, you must do the following: Actions Compliance Procedures (1) Modify the fuel system to improve the venting between the collector tank, the main wing tanks, and the engine (i) For Group 1 Airplanes: Within the next 3 calendar months after July 13, 1998 (the effective date of AD 98-12-01), unless already done (ii) For Group 2 Airplanes: Within the next 3 calendar months after August 7, 2006 (the effective date of this AD, unless already done Follow Pilatus PC-6 Service Bulletin No. PC-6-SB-171, dated October 18, 1995. (2) Do not install any collector tank or fuel vent system unless the modification requirements of paragraph (e)(1) are done For all airplanes: As of August 7, 2006 (the effective date of this AD) Follow Pilatus PC-6 Service Bulletin No. PC-6-SB-171, dated October 18, 1995. Alternative Methods of Compliance (AMOCs) (f) The Manager, Standards Office, ATTN: Doug Rudolph, Aerospace Engineer, FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 329-4059; facsimile: (816) 329-4090, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. (g) AMOCs approved for AD 98-12-01 are approved for this AD. Related Information (h) Swiss AD Number HB 2005-289, effective date August 23, 2005, also addresses the subject of this AD. Material Incorporated by Reference (i) You must do the actions required by this AD following the instructions in Pilatus PC-6 Service Bulletin No. PC-6-SB-171, dated October 18, 1995. (1) As of July 13, 1998 (63 FR 30370, June 4, 1998), the Director of the Federal Register previously approved the incorporation by reference of Pilatus Service Bulletin No. PC-6-SB-171, dated October 18, 1995, in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. (2) To get a copy of this service information, contact Pilatus Aircraft Ltd., Customer Liaison Manager, CH-6371 Stans, Switzerland; telephone: +41 41 619 63 19; facsimile: +41 41 619 6224. To review copies of this service information, go to the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html or call (202) 741-6030. To view the AD docket, go to the Docket Management Facility, U.S. Department of Transportation, 400 Seventh Street, SW., Nassif Building, Room PL-401, Washington, DC 20590-0001 or on the Internet at http://dms.dot.gov . The docket number is FAA-2006-24091; Directorate Identifier 2006-CE-17-AD. Issued in Kansas City, Missouri, on June 14, 2006. James E. Jackson, Acting Manager, Small Airplane Directorate, Aircraft Certification Service. [FR Doc. 06-5583 Filed 6-21-06; 8:45 am] BILLING CODE 4910-13-P
Unsafe condition
This AD results from mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for Switzerland that requires the actions of AD 98-12-01 for the added MSN 2001 through 2092 for all the models of the PC-6 airplanes listed in the type certificate data sheet of Type Certificate (TC) No. 7A15. We are issuing this AD to prevent engine fuel starvation during maximum climb and descent caused by poor fuel tank venting with low fuel levels, which could result in a loss of engine power during critical phases of flight.
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You just looked this one up by hand
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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