Tornado Alley Turbo, Inc. TAT SB07-01

Full document text

Tornado Alley Turbo, Inc. TAT SB07-01 300 Airport Road Page 1 of 4 Ada, Ok 74820 PH (580)332-3510 Service Bulletin TAT SB07-01 Issued: 15 January, 2007 Model SR22 w/ Turbonormalizer COMPLIANCE Mandatory: Tornado Alley Turbo considers this Service Bulletin to be MANDATORY. Accomplish this Service Bulletin at the next scheduled service or within 25 hours, whichever comes first. Compliance time begins upon receipt of this Service Bulletin. EFFECTIVITY Cirrus Design SR22, the following serial numbers that incorporate the Tornado Alley Turbo, Inc. Turbonormalizing System: 2022 2037 2056 2088 2092 2104 2108 2110 2112 2116 2121 2125 2135 2137 2142 2146 2159 2162 2166 2170 2172 2175 2176 2178 2183 2190 2193 2194 2205 2207 2208 2211 2213 2216 2219 2222 2228 2231 2237 2240 2243 2246 2247 2269 2274 2281 2285 2289 2293 2300 2303 2305 2306 2308 2312 2316 2323 2327 2331 2335 2336 2339 2342 2343 2344 2346 2349 2352 2355 2358 2360 2365 2368 2369 APPROVAL Engine Technologies, Inc., the Turbonormalizing System STC holder, has approved all technical data in this Service Bulletin that affects the type design. PURPOSE The purpose of this Service Bulletin is to inform affected owners and operators of a product improvement to the Turbonormalizing System that requires the installation of a support bracket for the wastegate control linkage and possible replacement of attaching clevis pins. DESCRIPTION This Service Bulletin contains procedures to install a wastegate linkage support bracket assembly, inspect, and if necessary, replace the 2 clevis pins that attach the wastegate linkage to the left and right wastegate assemblies. WARRANTY INFORMATION Parts and labor cost for this Service Bulletin will be covered by the STC holder. Approval for the required maintenance must be obtained in advance. The stated manhours are covered under this warranty. Only Authorized Cirrus Service Centers are eligible for warranty consideration. MANPOWER REQUIREMENTS Installation of the wastegate linkage support bracket assembly: 1.5 manhours. Installation of 2 replacement wastegate clevis pins: 1.5 manhours. Tornado Alley Turbo, Inc. TAT SB07-01 300 Airport Road Page 2 of 4 Ada, Ok 74820 PH (580)332-3510 OTHER PUBLICATION AFFECTED N/A WEIGHT AND BALANCE Weight change is considered negligible. MATERIAL INFORMATION Wastegate linkage support bracket assembly ETI-G2-112-1 1 ea Clevis pin MS20392-1C19 2 ea Cotter pin (split pin) MS24665-134 2 ea Pre-addressed envelope TATI-001 1 ea ACCOMPLISHMENT INSTRUCTIONS 1. Within the next 25 hours, or at the next regularly scheduled service, whichever comes first, install the wastegate linkage support assembly as follows: • Snap Teflon® bushing FS-895 over the long run portion of the wastegate linkage ETI-SR22-111-1. This can be done with the linkage arm installed on the aircraft and without removing the linkage or disassembly of the linkage. • Place retainer cap ETI-G2-112-101 around bushing. • Place mount plate ETI-G2-112-102 to aft side of retainer cap with bent angle towards retainer cap. • Install 4 screws AN525-832R6 through forward side of retainer cap towards the mount plate. • Install 4 washers NAS1149FN832P and 4 nuts MS21042-08 from aft side of plate and tighten to 35 inch lbs (3.9 Nm). • Slide assembly along linkage and move fore and aft to ensure the linkage can articulate left and right and with fore and aft movement with no binding of the mechanism. Tornado Alley Turbo, Inc. TAT SB07-01 300 Airport Road Page 3 of 4 Ada, Ok 74820 PH (580)332-3510 • Gain Access to the mixture cable support bracket and locate two (2) bolts identified below. • Remove the 2 bolts that secure the mixture control cable bracket to the starter drive adapter. • Place wastegate linkage support bracket between the mixture bracket and starter drive adapter and reinstall bolts. • Torque bolts 50 to 70 inch lbs (5.6 to 7.9 Nm). • Hand actuate the linkage to ensure freedom of movement. • If the linkage rod is not closely aligned with the support bracket and movement of the linkage is not free, loosen the jam nuts on each end of the linkage to allow the linkage to rest neutrally within the support bracket and retighten the nuts and secure with safety wire. • Ensure that the two wastegate butterfly positions are not changed in relation to one another. 2. If the aircraft has less than 60 hours time in service, no further action is required. Go to step 4, below to complete airplane records by noting compliance with Service Bulletin TAT SB-07-01 in aircraft logbook. 3. If the aircraft has more than 60 hours time in service, also perform the following: • If the aircraft has more than 60 hours time in service since installation of the Turbonormalizing System, then prior to installing the new wastegate linkage support bracket ETI-G2-112-1, inspect for possible wear to the clevis pins MS20392-1C19 caused by linkage flapping, as follows: Tornado Alley Turbo, Inc. TAT SB07-01 300 Airport Road Page 4 of 4 Ada, Ok 74820 PH (580)332-3510 – Inspect the pins at both wastegates by remo ving cotter pin and sliding pin out. Be sure to retrieve the washers. – Replace the pin with new, regardless of condition. – Note the condition of the clevis hole and wastegate arm. Some wear is normal and is acceptable. – Install new clevis pin with 2 washers, and new cotter pin MS24665-134. – After installation, the wastegate linkage should be relatively free from movement other than normal left and right translation aligned with wastegate actuation. – If any excessive wear is noted, contact Tornado Alley Turbo for further instructions. – Place old clevis pins in the envelope included for mailing to TAT, and include information as to the aircraft registration number, date, & time in service in the place provided on the back of the envelope. 4. After performing steps 1, 2, & 3, complete the airplane records by noting compliance with Service Bulletin