2012-03-07: Carburetor

Adoption of the Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows: PART 39--AIRWORTHINESS DIRECTIVES 0 1. The authority citation for part 39 continues to read as follows: Authority: 49 U.S.C. 106(g), 40113, 44701. Sec. 39.13 [Amended] 0 2. The FAA amends Sec. 39.13 by adding the following new airworthiness directive (AD): 2012-03-07 Lycoming Engines (formerly Textron Lycoming Division, AVCO Corporation): Amendment 39-16948; Docket No. FAA-2011-0533; Directorate Identifier 2011-NE-16-AD. (a) Effective Date This AD is effective March 27, 2012. (b) Affected ADs None. (c) Applicability This AD applies to all Lycoming Engines reciprocating engines with carburetor part numbers listed in Table 1 of this AD. Table 1--Part Numbers (Including All Dash Numbers) of Known Affected HA- 6 Model Carburetors ------------------------------------------------------------------------ ------------------------------------------------------------------------ 10-5219-XX 10-5224-XX 10-5230-XX 10-5235-XX 10-5253-XX 10-5255-XX 10-5283-XX 10-6001-XX 10-6019-XX 10-6030-XX ------------------------------------------------------------------------ (d) Unsafe Condition This AD was prompted by a report of a "machined-from-billet'' HA-6 carburetor having a loose mixture control sleeve that rotated in the carburetor body causing restriction of fuel and power loss. We are issuing this AD to prevent engine in-flight shutdown, power loss, and reduced control of the airplane. (e) Compliance Comply with this AD within 50 flight hours after the effective date of this AD, unless already done. (f) Inspection Inspect the carburetor to determine the type of body the carburetor has. Use Marvel-Schebler Emergency Service Bulletin (SB) No. SB-18, dated October 14, 2010, or Revision A, dated March 15, 2011, Figure (3) to determine which type of body is used. (g) If the carburetor has a die-cast body, no further action is required. (h) If the carburetor has an affected "machined-from-billet'' body, remove the carburetor; and replace the carburetor with: (1) An HA-6 carburetor not listed in Table 1 of this AD; or (2) An HA-6 carburetor that is listed in Table 1 but is exempted as described in paragraphs 1.A. and 1.B of Marvel-Schebler Emergency SB No. SB-18, dated October 14, 2010 or Revision A, dated March 15, 2011; or that has already been repaired using that Emergency SB. (i) Alternative Methods of Compliance (AMOCs) The Manager, Atlanta Aircraft Certification Office, FAA, may approve AMOCs for this AD. Use the procedures found in 14 CFR 39.19 to make your request. (j) Related Information For more information about this AD, contact Kevin Brane, Aerospace Engineer, Propulsion, Atlanta Aircraft Certification Office, FAA, Small Airplane Directorate; 1701 Columbia Avenue, College Park, Georgia 30337; phone: (404) 474-5582; fax: (404) 474- 5606; email: kevin.brane@faa.gov. (k) Material Incorporated by Reference (1) You must use the following service information to do the actions required by this AD, unless the AD specifies otherwise. The Director of the Federal Register approved the incorporation by reference (IBR) under 5 U.S.C. 552(a) and 1 CFR part 51 of the following service information: (i) Marvel-Schebler Emergency Service Bulletin No. SB-18, dated October 14, 2010. (ii) Marvel-Schebler Emergency Service Bulletin No. SB-18, Revision A, dated March 15, 2011. (2) For service information identified in this AD, contact Marvel-Schebler Aircraft Carburetors LLC, 125 Piedmont Avenue, Gibsonville, NC 27249; phone: 336-446-0002; fax: 336-446-0007; email: customerservice@msacarbs.com; Web site: www.msacarbs.com. (3) You may review copies of the service information at the FAA, Engine & Propeller Directorate,12 New England Executive Park, Burlington, MA. For information on the availability of this material at the FAA, call 781-238-7125. (4) You may also review copies of the service information that is incorporated by reference at the National Archives and Records Administration (NARA). For information on the availability of this material at an NARA facility, call 202-741-6030, or go to http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html. [[Page 9839]]