| 80-23-52 |
Aerospatiale |
Repetitively inspect tail rotor gearbox tripod | SA-365C |
| 80-23-51 |
Sikorsky |
Superseded by 84-10-2 |
| 80-23-2 |
Soloy |
Inspect transmission lubrication jets | UH-12E,-4,47G conversions |
| 80-23-1 |
Rolls-Royce |
Modify or replace low pressure impellers | Dart 529 - series on GI (G159) |
| 80-22-9 |
Agusta |
Install steel eng mount fitting | A109A, most thru SN 7165 |
| 80-22-8 |
Aerospatiale |
Modify tail rotor system | AS-350 series |
| 80-22-55 |
Sikorsky |
Revised 3/82 | Repetitive inspect rotor damper piston rods | S-76A |
| 80-22-54 |
Sabreliner |
Inspect aileron control sys | NA-265-60, -80 |
| 80-22-53 |
Avco Lyc |
Superseded by 00-5-14 |
| 80-22-5 |
Cont Eng |
Inspect or replace crankshaft oil seal | TSIO-520-M,-P,-R |
| 80-22-4 |
Piper |
Superseded by 96-12-12 |
| 80-22-15 |
Piper |
Superseded by 81-25-5 | supersedes 58-10-2 |
| 80-22-13 |
Piper |
Supersedes 80-11-2 | replace rudder hinge bracket | PA-38-112(thru SN-80A0165) |
| 80-22-11 |
Bell |
Replace main rotor grip prior to 1200 hrs | 206L-1 |
| 80-21-9 |
Bell |
Revised 11/80 | Inspect tail rotor pitch link | 47 series |
| 80-21-8 |
Piper |
Supersedes 73-26-2 | remove wings for spar inspect if STC SA501SW | PA-25 |
| 80-21-7 |
Piper |
Deleted 10-18-83 |
| 80-21-6 |
Bellanca |
Inspect muffler each 100 hrs or 12 months | all Champions 1973 & prior |
| 80-21-53 |
Robinson |
Inspect spiral bevel gear in main transmission | R22 thru SN 0060 |
| 80-21-52 |
Aerospatiale |
Inspect main transmission | AS360C |
