| 81-23-2 |
Cont Eng |
Replace oil filter adapter | LTSIO-; TSIO-360-EB,-GB,-KB engs |
| 81-23-1 |
Beech |
Revised 1/82 | rework wing attachments | 65, A65; 70; A80; B80; 90,A,B,C,E; 99; 100; A100, B100 |
| 81-22-4 |
Swearingen |
Superseded by 93-9-5 |
| 81-22-3 |
deHavilland |
Replace elevator torque hnge bolt prior to 5000 hrs or 5 yrs | DHC-6 series |
| 81-21-7 |
Varga |
Superseded by 82-8-4 |
| 81-21-6 |
Aerospatiale |
Replace rotor blade eyebolt bearing | SA330 series |
| 81-21-5 |
Artex |
Replace ELT battery pack | all models |
| 81-21-4 |
Sikorsky |
Replace main rotor scissors | S-76A |
| 81-21-1 |
Aerospatiale |
Repetitively inspect ERC cargo hook legs | SA315B |
| 81-20-3 |
Agusta |
Periodically inspect tail rotor drive shaft bearings | A109A |
| 81-20-2 |
Varga |
Inspect fuel vent tubes | 2150A |
| 81-2-4 |
Agusta |
Modify manuals and rotor pitch horn trunion | A109,A |
| 81-2-3 |
Puritian |
Superseded by 81-8-4 |
| 81-2-10 |
Bell |
Supersedes 80-7-11 | replace freewheeling clutch | 214B,-1 thru SN 28049 |
| 81-2-1 |
Swearingen |
Superseded by 92-19-8 |
| 81-19-6 |
Falcon |
Modify pilot/copilot seats | 10 |
| 81-19-4 |
Rajay |
Inspect and/or replace air, fuel, oil hoses | all w/Rajay STC |
| 81-19-3 |
Robinson |
Superseded by 81-24-10 |
| 81-19-2 |
Bell |
Replace main rotor yoke prior to 3600 hrs | 204, 205 series |
| 81-19-1 |
Bell |
Replace main rotor yoke prior to 3600 hrs | 212 series |
