AD 2011-13-03 Airworthiness Directives: Lycoming Engines (Type Certificate Previously Held by Textron Lycoming) and Teledyne Continental Motors (TCM) Turbocharged Reciprocating Engines

Makes named: lycoming, continental, teledyne. Read the applicability below — it usually turns on serial or part numbers too.

This AD applies to the Lycoming Engines and TCM turbocharged reciprocating engines listed in, but not limited to, Table 1 of this AD, with the following Hartzell Engine Technologies, LLC (HET) turbocharger models TA3601, TAO401, TAO402, TAO411, TAO413, T1879, T18A21, T18A44, THO867, and TEO659, installed: (1) Newly manufactured turbochargers (otherwise known as the -0000 series) before serial number H-NJL00003, or rebuilt (otherwise known as the -9000 series) before serial number H-NJR00002; and (2) With less than 50 hours time-in-service (TIS) on the effective date of this AD; and (3) With a part number listed in Table 2 or Table 3 of this AD; and (4) With a “slanted A” foundry mark located on the center housing and rotating assembly (CHRA). Table 1—Engines Affected   TSIO-520-BE. TSIO-360-MB, SB. TIO-540-AK1A. L/TSIO-360-RB. TIO-540-AE2A. TSIO-360-H. O-540-L3C5D. TSIO-520-T. L/TO-360-E1A6D. TIO-540-AG1A. TIO-540-AF1A. TIO-540-AF1B. TIO-540-AH1A. TIO-541-E1D4. TIO-541-E1C4. TIGO-541-E. GTSIO-520-F. GTSIO-520-K. GTSIO-520-D. GTSIO-520-H. Table 2—KAES Turbocharger Part Numbers Affected             406990-9004 407540-0003 407540-9003 407800-9003 408590-9012 048610-0001 465292-0001 465292-9001 465292-0002 465292-9002 465292-0004 465292-9004 465398-9002 466011-0002 466011-9002 466304-0003 466304-9003 466642-0001 466642-0002 466642-9002 466642-0005 466642-9005 466642-0006 466642-0007 408610-9001 465398-0002 466642-9001 N/A N/A N/A Table 3—Original Equipment Turbocharger Part Numbers Affected             637374-1 633274-4 635034-2 642518-4 646677 649151-1 649151-2 46C19836 46C19839 46C22924 C295001-0301 C295001-0304 LW-10191 LW-13310 LW-16254 N/A N/A N/A (d) This AD does not require action for: (1) Turbochargers with more than 50 hours TIS on the effective date of this AD. (2) Turbochargers with a circled “JT” foundry mark on the CHRA. (e) This AD does not apply to engines with new or overhauled turbochargers installed on or before September 2001.

Unless already done, disassemble, clean, and reassemble the turbochargers affected by this AD as follows: Turbochargers With Between 0 and 10 Hours TIS (1) For affected turbochargers including overhauls, with between 0 and 10 hours TIS on the effective date of this AD, before further flight, disassemble the turbocharger, clean the CHRA center housing cavity, and reassemble the turbocharger. Turbochargers With More Than 10 Hours TIS But Less Than 50 Hours TIS (2) For affected turbochargers including overhauls, with more than 10 hours TIS but less than 50 hours TIS on the effective date of this AD, within the next 10 hours TIS, disassemble the turbocharger, clean the CHRA center housing cavity, and reassemble the turbocharger. (3) Use paragraphs 1 through 10 of the CLEANING CHRA CENTER HOUSING section of Hartzell Engine Technologies, LLC SB No. 040, Revision A, dated December 22, 2010, to do the cleaning. (4) The reference to Step 16 in paragraph 10 of the CLEANING CHRA CENTER HOUSING section of Hartzell Engine Technologies, LLC SB No. 040, Revision A, dated December 22, 2010, is incorrect. The correct reference is Step 9. Turbochargers With More Than 50 Hours TIS (h) For turbochargers with more than 50 hours TIS on the effective date of this AD, no further action is required. Special Flight Permits (i) Special flight permits are restricted to day Visual Meteorological Conditions flight only. Alternative Methods of Compliance (AMOCs) (j) The Manager, Atlanta Aircraft Certification Office, has the authority to approve AMOCs for this AD if requested using the procedures found in 14 CFR 39.19. Related Information (k) For more information about this AD, contact Gary Wechsler, Aerospace Engineer, Atlanta Aircraft Certification Office, 1701 Columbia Avenue, College Park, GA 30337; phone: 404-474-5575; fax: 404-474-5606; e-mail: gary.wechsler@faa.gov. Material Incorporated by Reference (l) You must use Hartzell Engine Technologies, LLC Service Bulletin No. 040, Revision A, dated December 22, 2010, to clean the turbocharger. (m) The Director of the Federal Register approved the incorporation by reference of this service bulletin in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. (n) For service information identified in this AD, contact Hartzell Engine Technologies, LLC, 2900 Selma Highway, Montgomery, AL 36108, phone: 334-386-5400; fax: 334-386-5450. (o) You may review copies of the service information that is incorporated by at the FAA, New England Region, 12 New England Executive Park, Burlington, MA; or at the National Archives and Records Administration (NARA). For information on the availability of this material at the FAA, call 781-238-7125. For information on the availability of this material at NARA, call 202-741-6030, or go to: http://www.archives.gov/federal-register/cfr/ibr-locations.html. Issued in Burlington, Massachusetts, on June 14, 2011. Peter A. White, Acting Manager, Engine and Propeller Directorate, Aircraft Certification Service. [FR Doc. 2011-16087 Filed 6-27-11; 8:45 am] BILLING CODE 4910-13-P

This AD was prompted by a turbocharger failure due to machining debris that was not cleaned from the cavities of the center housing and rotating assembly (CHRA), during manufacture. We are issuing this AD to prevent seizure of the turbocharger turbine, which could result in damage to the engine, and smoke in the airplane cabin.