| 64-6-1 |
Beech |
Modify cabin heater | SN M2 thru M555 |
| 64-5-6 |
Universal |
Inspect engine mount for corrosion | all GC-1B models |
| 64-5-4 |
Piper |
Remove, inspect or replace upper main oleo bearing | SN 22-1 thru -9848 |
| 64-4-5 |
Navion |
100-hour inspect or replace outer wing panel | all models thru G |
| 64-4-3 |
Champion |
Rework air door hinges | all models with 4-1009 air scoop box on Series 7 |
| 64-28-3 |
Piper |
Install new design torque tube | SN 30-1 thru 30-565 |
| 64-28-1 |
Hartzell |
Replace HC12X20 prop hubs | all models thru A model Navion |
| 64-27-2 |
Marvel |
Superseded by 66-5-4 |
| 64-27-1 |
Beech |
Rework control wheel stop | SN D6842 thru D7628 |
| 64-24-5 |
Piper |
Install fuselage gear seals | 235 HP | SN 25-02 & 25-2000 thru 25-2931 |
| 64-24-4 |
McCauley |
Replace blades | Models 2A36, B2A36, C2A36, D2A36 and 2D36 props |
| 64-24-2 |
Beech |
Reinstall wing attach bolts | D50E,J50,65 |
| 64-24-1 |
Gulfstream |
Superseded by 65-6-1 |
| 64-22-3 |
Piper |
Replace landing gear safety switch | SN 24-1 thru 24-3284 |
| 64-21-5 |
Piper |
Replace Hartzell prop governor relief valve | PA-23-250 & PA-30 models |
| 64-21-3 |
Beech |
Superseded by 75-27-9 |
| 64-21-2 |
Beech |
Superseded by 67-16-1 |
| 64-21-1 |
Beech |
Superseded by 75-27-9 |
| 64-20-1 |
Hartzell |
Replace pitch change blocks | HCC27 and E2 series props |
| 64-2-1 |
Gulfstream |
Modify landing gear | SN 871 thru 1329 |
