| 98-21-9 |
Robinson |
Visually inspect fuel tank vent tubes in the mast fairing to prevent possible fuel starvation. | R22 |
| 98-21-36 |
Robinson |
Remove grip assembly specified by part number and replace with airworthy grip assembly. | R44 |
| 98-21-35 |
Raytheon |
Replace the left and right main landing gear actuator clevis assembly to prevent failure caused by fatigue cracking. | 200,300 series |
| 98-21-27 |
Pilatus |
Modify passenger seats and seat rail covers to prevent passenger injuries. | PC-12 |
| 98-21-26 |
Mooney |
Inspect main landing gear leg bracket for cracking to prevent failure of the main landing gear side brace bolt. | M20J,K,M,R |
| 98-21-21 |
Bob Fields Aerocessories |
R1 2000-04 | Disable seal inflation system to prevent possible fire in the cockpit caused by overheating. | Various aircraft |
| 98-21-15 |
Socata |
Modify oxygen generator firing pin to prevent failure of the system and possible incapacitation of crew. | TBM 700 |
| 98-21-12 |
MDHC |
Visually inspect clutch components for wear or damage that can cause failure of the overrunning clutch. | 369D,369E,369FF,500N |
| 98-20-41 |
Bell |
Superseded by 99-6-15 |
| 98-20-39 |
Mitsubishi |
Inspect forward attachment fitting bolts of the wing tanks for proper part number to prevent possible loss of wing tank in flight. | MU-2B series. |
| 98-20-38 |
Raytheon |
Revise the Airplane Flight Manual, Limitations Section to minimize potential operating hazards in severe icing conditions. | 200,B200 series |
| 98-20-35 |
IAI |
Supersedes 98-5-9 | Inspect horizontal stabilizer trim actuator to verify jackscrew integrity and to detect excessive wear to prevent failure of jackscrews | 1121,1123,1124 series |
| 98-20-34 |
Twin Cmdr |
Revise the Airplane Flight Manual, Limitations Section to minimize potential operating hazards in severe icing conditions. | Various Twin Commanders |
| 98-20-33 |
Cessna |
Revise the airplane flight manual to minimize potential hazards associated with severe icing conditons. | T210R |
| 98-20-28 |
Pilatus |
Revise airplane flight manual to minimize the potential hazards associated with severe icing conditions. | PC-12 |
| 98-2-9 |
Allison |
Superseded by 98-11-32 |
| 98-2-8 |
Text-Lyc |
Visually inspect inside diameter of crankshaft for corrosion pits. If pits are found, conduct furthur inspection for crankshaft cracking. | Various aircraft |
| 98-2-5 |
Cessna |
To prevent carbon monoxide from entering heating system, remove and replace specified engine exhaust mufflers. | 172R |
| 98-19-4 |
Agusta |
Superseded by 01-24-7 |
| 98-19-2 |
Tele-Cont |
To prevent piston pin failure check records to verify if pins have been replaced, replace according to AD. | Various IO-360 models |
