Service Bulletin No. 205 Turbocharger V-Band Torque Verification

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Service Bulletin Service Bulletin No. 205 Turbocharger V-Band Torque Verification Rev. New: 11 Oct. 2023 SB 205 2023 - Hartzell Engine Tech - All rights reserved Page 1 of 6 2900 Selma Highway Montgomery, AL 36108 USA Tel: 334-386-5400 Fax: 334-386-5450 1. Planning Information A. Effectivity (1) Overhauled or repaired Aeroforce turbocharger models TE06, TH08, TH08A, TA8102, T18A, and TA61 manufactured by Hartzell Engine Tech are affected by this Service Bulletin (SB). (a) Table 1 contains turbocharger assembly Model, turbocharger P/N, and associated aircraft/engines affected by this SB. (b) All serial numbers of overhauled or repaired turbocharger assemblies are affected. NOTE: Aircraft and engine models found in Table 1 are for reference only. Table 1 is not an all-inclusive list of aircraft and engines affected by this SB. It is the responsibility of the owner/operator to verify whether an affected turbocharger may be installed. WARNING: DO NOT USE OBSOLETE OR OUTDATED INFORMATION. PERFORM ALL INSPECTIONS OR WORK IN ACCORDANCE WITH THE MOST RECENT REVISION OF THIS SERVICE BULLETIN. INFORMATION CONTAINED HEREIN MAY BE SIGNIFICANTLY CHANGED FROM EARLIER REVISIONS. FAILURE TO COMPLY WITH THIS SERVICE BULLETIN OR THE USE OF OBSOLETE INFORMATION MAY CREATE AN UNSAFE CONDITION THAT MAY RESULT IN DEATH, SERIOUS BODILY INJURY, AND/OR SUBSTANTIAL PROPERTY DAMAGE. REFER TO WWW.AEROFORCE.AERO FOR THE MOST RECENT REVISION LEVEL OF THIS SERVICE BULLETIN. B. Concurrent Requirements (1) None C. Reason (1) Hartzell Engine Tech has discovered that affected turbocharger v-band lock-nut (1) torque specifications referenced in 400600-0000 Rev. New thru Rev. D are incorrect. (a) This condition could compromise the integrity of the v-band retention system. D. Description (1) This SB provides Instructions for Continued Airworthiness (ICA). (2) This SB is to advise the field of a known condition, supply inspection criteria to identify affected turbocharger assemblies, and provide corrective actions for affected turbochargers. (3) Torque specifications found in Table 2 of this document supersede those referenced in HET Manual P/N 400600-0000 Rev. New thru Rev. D for affected turbocharger assemblies. (a) Table 2 data is scheduled to be incorporated in the release of HET Manual P/N 400600-000 Rev. E. SERVICE BULLETIN Service Bulletin No. 205 Turbocharger V-Band Torque Verification SB 205 Rev. New: 11 Oct. 2023 Page 2 of 6 © 2023 - Hartzell Engine Tech - All rights reserved E. Compliance (1) Compliance with section 3.A of this SB is required at the next scheduled aircraft annual inspection, not to exceed 12 calendar months from issuance date of this SB, whichever occurs first. F. Approval (1) FAA acceptance has been obtained on technical data in this publication that affects type design. G. Manpower (1) Labor is negligible for identification and inspection when performed in conjunction with regularly scheduled maintenance required by the engine/aircraft manufacturer or by aircraft documentation review. (2) Up to one-half (.5) hour to perform a one-time inspection of the affected turbochargers. H. References (1) Applicable aircraft POH or AFM. (2) Aircraft maintenance manual (as applicable). (3) Engine Service Instructions or maintenance manual (as applicable). (4) Aircraft Turbocharger Maintenance and Overhaul Manual, HET P/N 400600-0000 Rev. New thru Rev. D. I. Other Publications Affected (1) None J. Weight and Balance (1) No Change 2. Material Required A. None SERVICE BULLETIN Service Bulletin No. 205 Turbocharger V-Band Torque Verification SB 205 Rev. New: 11 Oct. 2023 Page 3 of 6 © 2023 - Hartzell Engine Tech - All rights reserved 3. Accomplishment Instructions WARNING: THIS PROCEDURE MUST BE PERFORMED BY COMPETENT AND QUALIFIED PERSONNEL WHO ARE FAMILIAR WITH ENGINE AND AIRFRAME MAINTENANCE THAT IS SPECIFIC TO THE TURBOCHARGER SYSTEM. FAILURE TO DO SO MAY RESULT IN ECONOMIC LOSS, EQUIPMENT DAMAGE, AND/OR PHYSICAL INJURY. CAUTION 1: DO NOT USE OBSOLETE OR OUTDATED INFORMATION. PERFORM ALL INSPECTIONS OR WORK IN ACCORDANCE WITH THE MOST RECENT REVISION OF THIS SERVICE BULLETIN AND THE APPLICABLE AIRCRAFT, ENGINE AND/OR THE HET P/N 400600- 0000 MAINTENANCE MANUAL. INFORMATION CONTAINED IN THESE MANUALS OR THIS SERVICE BULLETIN MAY BE SIGNIFICANTLY CHANGED FROM EARLIER REVISIONS. FAILURE TO COMPLY WITH THE SERVICE BULLETIN OR THE USE OF OBSOLETE INFORMATION MAY CREATE AN UNSAFE CONDITION THAT MAY RESULT IN DEATH, SERIOUS BODILY INJURY, AND/OR SUBSTANTIAL PROPERTY DAMAGE. REFER TO THE AEROFORCE WEBSITE (WWW.AEROFORCE.AERO) FOR THE MOST RECENT REVISION OF THE 400600-0000 MANUAL. CAUTION 2: DO NOT DEPEND ON THIS SERVICE BULLETIN FOR GAINING ACCESS TO THE ENGINE OR TURBOCHARGER. ACCESS REQUIRES THE USE OF THE APPLICABLE MANUFACTURER’S MAINTENANCE MANUALS OR SERVICE INSTRUCTIONS. IN ADDITION, ANY PREFLIGHT OR IN FLIGHT OPERATIONAL CHECKS REQUIRE USE OF THE APPROPRIATE AFM OR POH. A. Turbocharger Identification (1) If positive identification of the turbocharger model can be made through the engine or aircraft documentation, and the turbocharger is affected per 1.A, continue to 3.B, Corrective Action. If the turbocharger is not affected, continue to 3.C, Maintenance Record. (2) If positive identification cannot be made through engine or aircraft documentation, use engine/ airframe service instructions or maintenance manual to gain access to the turbocharger to verify effectivity by inspecting the turbocharger data tag. (a) If the turbocharger is affected, proceed to section 3.B., Corrective Action. (b) If the turbocharger is not affected, install any components removed to gain access in accordance with the latest engine/airframe service instructions or maintenance manual. Continue to 3.D, Maintenance Record. SERVICE BULLETIN Service Bulletin No. 205 Turbocharger V-Band Torque Verification SB 205 Rev. New: 11 Oct. 2023