| 74-18-12 |
AiResearch |
Replace fuel control orifice | TFE 731-2-2B |
| 74-17-8 |
Piper |
Prevent fuel line failure | PA-34 (SN 34-725001 thru 7450209) |
| 74-17-4 |
Piper |
Supersedes 61-6-6 | revised 4/77 | fabric failure | PA-12,-14,-15,-16, -17,-20,-22 |
| 74-16-8 |
Piper |
Prevent cracking of aft bulkhead | all PA-30 & PA-39 |
| 74-16-6 |
Cessna |
Prevent oil gauge line failure | 177 (thru SN 2041), 177RG (thru 445) |
| 74-16-4 |
Beech |
Prevent restricted elevator travel | B80, C90, E90 |
| 74-16-3 |
Beech |
Supersedes 71-26-2 | prevent restricted elevator travel | 99; 100,A100 |
| 74-15-7 |
Bellanca |
Check prop index to crankshaft flange | 8GCBC (SN 2-74 thru 62-74) |
| 74-15-2 |
Hartzell |
Superseded by 77-12-6 |
| 74-14-6 |
Piper |
Modify holes & install new bolts in spar center section | PA-36-285 |
| 74-14-5 |
Beech |
Supersedes 73-14-8 | spins prohibited until spin kit installed | B19,C23 |
| 74-14-4 |
Piper |
Revised 8/74 | install gross weight placard | PA-28-151 thru SN 7415538 |
| 74-14-2 |
Beech |
Revised 8/74 | inspect carb heat, mixture controls, install kit | B19,C23 |
| 74-14-1 |
Hartzell |
Revised 8/74 | inspect for blade cracks | props on PT-6A-() TPE 331-() |
| 74-13-9 |
AiResearch |
Revised 7/74 | replace improper fuel pump | TFE731-2 eng |
| 74-13-8 |
AiResearch |
Superseded by 74-23-5 |
| 74-13-7 |
Piper |
Install new fuel placards | PA-36-285 (SN 36-7360001 to 36-730065) |
| 74-13-6 |
McCauley |
Modify main wheel assemblies | 180J;A185F; U-,TU206F; 210L,T210L |
| 74-13-5 |
Lyc Eng |
Replace connecting rod assemblies | IGO-540 series, IGSO-540 series |
| 74-13-4 |
Piper |
Install new bracket & end bearing in throttle cable ball joint | PA-28-140 |
