Kelly Aerospace Power Systems Service Bulletin 033

ISSUED REVISED PAGE NO REVISION MO DAY YEAR MO DAY YEAR 1 of 1 Original 07 10 2008 T e le d y n e C o n t in e n t a l M o t o r s, In c . TM P.O. BOX 90 MOBILE, AL 36601 251-438-3411 CSB08-11 © 2008 TELEDYNE CONTINENTAL MOTORS, INC. TELEDYNE CONTINENTAL ® AIRCRAFT ENGINE CRITICAL SERVICE BULLETIN COMPLIANCE NECESSARY TO MAINTAIN SAFETY SUBJECT: Kelly Aerospace® Power Systems Service Bulletin 033 PURPOSE : To provide notification of Mandatory Replacement of Cooling Fan and Pulley Assemblies on TCM P/N 656872 , Kelly Aerospace P/N ES7024-11 and TCM P/N 657199 Kelly Aerospace ES7024-14 back-up alternators. Kelly Aerospace Mandatory Service Bulletin 033 is attached COMPLIANCE: As required by Kelly Aerospace Service Bulletin 033 (Attached) MODELS AFFECTED: All IO550N and IOF550N engines equipped with the TCM 656872, ES2074-11 and TCM 657199, ES7024-14 GENERAL It has come to the attention of Kelly Aerospace Power Systems, that certain IO550N and IOF550N engines installed in Cirrus Design SR22 aircraft equipped with the backup alternators listed in the attached bulletin, may experience failure in the cooling fan of the backup alternator. This Service Bulletin is issued to mandate the replacement of both the fan and pulley assemblies on the 656872 ES7024-11 and 657199 ES7024-14 backup alternators listed in the attached bulletin. Announcement of the availability of a replacement alternator fan, part number 657582 and pulley, part number 657583 is included in this bulletin Serial numbers of affected alternators are included in attached Kelly Aerospace Service Bulletin 033. . WARRANTY Warranty consideration in the compliance of this bulletin will be; Labor of 1.5 hours at posted shop rate and parts required for bulletin completion. All compliance to be performed by approved Cirrus Design Service Centers. All warranty consideration in the compliance with this bulletin will be provided by Teledyne Continental Motors through Cirrus Design. Category 2 CSB08-11 Technical Portions FAA Approved E ES S7 70 02 24 4--1 11 1 ((T TC CM M P P//N N 6 65 56 68 87 72 2)) E ES S7 70 02 24 4--1 14 4 ((T TC CM M P P//N N 6 65 57 71 19 99 9)) A AL LT TE ER RN NA AT TO OR R F FA AN N A AN ND D P PU UL LL LE EY Y R RE EP PL LA AC CE EM ME EN NT T INTRODUCTION: It has come to the attention of Kelly Aerospace Power Systems, that certain Cirrus Design SR22 airplanes may experience failures in the cooling fan of the backup alternator. During normal operation of the ES7024-11 (TCM 656872) & ES7024-14 (TCM 657199) backup alternator, a variable resonance condition with the cooling fan currently installed, may result in the development of cracks in portions of the blades. This condition, left uncorrected, may lead to the loss of the entire fan assembly with the potential loss of alternator function. This Service Bulletin is being issued to mandate the replacement of both the fan and pulley assemblies on the existing ES7024-11 (TCM 656872) & ES7024-14 (TCM 657199) alternators and to announce the availability of an improved pulley assembly which when installed will remedy the above condition. COMPLIANCE: Within the next ten (10) hours time in service or at the next regularly scheduled maintenance event or annual inspection which ever occurs first. EFFECTIVITY: All Cirrus Design SR22 Airplanes utilizing a Kelly Aerospace Power Systems ES7024-11 or ES7024-14 backup alternator installed per the serial numbers listed below. Suspect Serial Numbers - ES7024-11 New Kelly Aerospace Power Systems Service Bulletin 033 Page 1 of 4 Service Bulletin Compliance is Considered Mandatory Bulletin No. 033 Issue Date: July 11, 2008 F012805 F012806 F012807 F013887 F013888 F073050 G051889 G051890 G061199 G061200 G061201 G061202 G061203 H024787 H051538 H051539 H051540 H051541 I031197 I051109 I051110 I051111 I052679 Page 2 of 4 Kelly Aerospace Power Systems Service Bulletin 033 New Suspect Serial Numbers - ES7024-14 PROCEDURE: CAUTION:: This procedure must be performed by competent and qualified personnel familiar with engine and airframe maintenance that is specific to the electrical system. CAUTION:: Do not depend on this Service Bulletin for gaining access to the aircraft or engine. This instruction requires that you use the applicable manufacturers maintenance manuals. In addition, any preflight or inflight operational checks require use of the appropriate AFM or POH. Replacing Alternator Fan and Pulley 1. Remove all electrical power from the aircraft before beginning work. Assure that the aircraft battery has been disconnected and that no external power is hooked up. 2. Access the aircraft backup alternator by removing the engine cowling as required in accordance with instructions contained in the Cirrus Design aircraft maintenance manual. 3. Loosen the alternator from the mount and slide the belt off. Retighten alternator to mount if fan and pulley are to be changed on the airplane. 4. Remove the alternator pulley nut, washer, pulley, and fan. The removal must be done using a nylon strap wrench (do not use rubber or chain). Apply a section of suitable alternator “V” belt of a length sufficient to wrap at least 320 degrees around and into the groove with the belt higher than the circumference of the pulley. To hold the pulley for the nut removal, place the strap wrench over the belt and pulley and tighten strap. This may be accomplished on or off the airplane. H025905 H025906 H025907 H025908 H025909 H051542 H060577 H060578 H060579 H060580 H060581 H060582 H060583 H060584 H060585 I031198 I031199 I031200 I031201 I031202 I031203 I041577 I041578 I041579 I041580 I041581 I041582 I041583 I041584 I041585 I041586 I041587 I041588 I041589 I041590 I041591 I041592 I041593 I041594 I041595 I050132 I050133 I050134 I050135 I050136 I050137 I050138 I050139 I050140 I050141 I050142 I050143 I050144 I050145 I050146 I050147 I050148 I050149 I050150 I050151 I050507 I050508 I050509 I050510 I050511 I050512 I050513 I050514 I050515 I050516 I050517 I050518 I050519 I050520 I050521 I050522 I050523 I050524 I050525 I052606 I052607 I052608 I052609 I052610 I052611 I052612 I052613 I052614 I052615 I052616 I052617 I052618 I052619 I052620 I052638 I052639 I052640 I052641 I052642 I052643 I060752 I060753 I060754 I060755 I060756 I060757 I060758 I060759 I061324 I061325 I061326 I061730 I061731 I061732 I061733 I061734 I061735 I061736 I061737 I061738 I061739 I061740 I061741 I061742 I061743 I061744 I061745 I061746 I061747 I061748 I061749 I061750 I061751 I061752 I062099 I062100 I062101 I062102 I062103 I062104 I062105 I062106 I062107 I062108 I062109 I062110 I062111 I062112 I062113 I062569 I062570 I062571 I062572 I062573 I062574 I062575 I062576 I062577 I062578 I062601 I062602 I062603 I062604 I062605 I062606 I070067 I070068 I070069 I070070 I070071 I070072 I070073 I070265 I070266 I070267 I070268 Replacing Alternator Fan and Pulley (cont’d) 5. Install a new TCM P/N 657582 fan, and new TCM P/N 657583 pulley as shown in Figure 1. Use the existing pulley nut and the locking washer. Take care when removing the locking washer as it is a special device which has two pieces. The sharp serrations must face outward while the shallow ramp must face each other. Using the strap wrench per instruction 4 above, torque the pulley nut to 35 to 45 ft-lbs. 6. Install the alternator belt (new or existing) on to the pulley and tension per instructions contained in the applicable manufacturers maintenance manual. 7. Perform an engine run to check the security and performance of the backup alternator installation and proceed to the “Return to Service” section. Figure 1 - Alternator Part Replacement RETURN TO SERVICE: NOTE:: The alternator in question is only installed in Cirrus Design SR22 aircraft utiliz- ing a backup alternator system. Check for the latest publication issued by Cirrus Design regarding aircraft model, serial number and warranty procedures. 1. Utilizing the applicable aircraft and engine manufacturers maintenance manuals, install any portion of the aircraft removed to gain access. 2. Upon successful completion of this service bulletin by repair of the alternator, make an appropriate log book entry of compliance. New Kelly Aerospace Power Systems Service Bulletin 033 Page 3 of 4 MATERIAL REQUIRED: One (1) each, fan, TCM part number 657582, and one (1) each, pulley, TCM part number 657583. AVAILABILITY OF PARTS: Parts to support this service bulletin must be obtained from an authorized Cirrus Design Service Center. WARRANTY STATEMENT: The sole warranty applicable to this service publication is related to the material listed in the “Material Required” section above provided the parts are obtained through an authorized Cirrus Design Distributor or Service Center. Other warranty may apply per the terms and conditions in the aircraft manufacturers Limited Warranty Policy. To qualify for warranty consideration, all work must be accomplished at an authorized Cirrus Design Service Center. All requests for labor related to this publication must be filed through the appropriate Cirrus Design Service Center. This publication does not imply or state any responsibility for the workmanship of any person or entity performing work or maintenance on the turbocharger, engine, or aircraft. CONTACT INFORMATION: If you have any questions concerning the instructions in this service bulletin, please contact Kelly Aerospace Power Systems Technical Support at 888-461-6077. Questions concerning aircraft service or operation must be forwarded to the applicable manufacturer of that product. Page 4 of 4 Kelly Aerospace Power Systems Service Bulletin 033 New