AD 64-16-05
final rule
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Lycoming Engines | HIO-360-B1A | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | HIO-360-B1B | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | IO-320-B1A | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | IO-360-A1A | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | IO-360-B1B | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | IO-540-C1B5 | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-320-A1A | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-320-A1B | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-320-A2A | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-320-A2B | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-320-A2C | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-320-A3A | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-320-A3B | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-320-A3C | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-320-B1A | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-320-B1B | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-320-B2A | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-320-B2B | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-320-B2C | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-320-B3A | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-320-B3B | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-320-B3C | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-320-C1A | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-320-C1B | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-320-C2A | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-320-C2B | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-320-C2C | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-320-C3A | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-320-C3B | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-320-C3C | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-320-D1A | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-320-D1B | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-320-D2A | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-320-D2B | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-320-E1A | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-320-E1B | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-320-E2A | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-320-E2B | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-340-A1A | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-340-A2A | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-340-B1A | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-360-A1A | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-360-A1C | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-360-A1D | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-360-A2A | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-360-A2D | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-360-A2E | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-360-A3A | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-360-A3AD | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-360-B1A | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-360-B1B | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-360-B2A | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-360-B2B | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-360-C1A | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-360-C1C | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-360-C2A | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-360-C2B | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-360-C2C | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-360-C2D | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-360-D1A | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-360-D2A | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-360-D2B | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-540-A1A | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-540-A1A5 | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-540-A1B5 | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-540-A1C5 | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-540-A1D | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-540-A1D5 | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-540-A2B | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-540-A3D5 | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-540-A4A5 | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-540-A4B5 | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-540-A4C5 | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-540-A4D5 | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-540-B1A5 | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-540-B1B5 | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-540-B2A5 | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-540-B2B5 | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-540-B4A5 | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-540-B4B5 | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-540-D1A5 | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-540-E4A5 | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-540-E4B5 | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-540-E4C5 | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-540-E4G5 | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-540-F1A5 | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-540-F1B5 | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-540-J1A5D | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
| engine | Lycoming Engines | O-540-J2A5D | LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines |
Unsafe Condition
Oil seal failure in AC light weight fuel pumps could drain engine oil overboard.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Modify AC pumps with specified part numbers per Lycoming Service Bulletin No. 298.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within 25 hours' time in service after the effective date of this AD unless already accomplished
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Lycoming Engines: O-320, O-340, O-360, O-540 Series Engines with AC Fuel Pumps (AC 5623-467, AC 5656880, AC 6440152, AC 5623466, AC 5656696) and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B, IO-540-C-B5 Engines with AC Fuel Pumps, excluding recent production or remanufactured engines listed in SB No. 298.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
AC Pumps
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_64-16-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 64-16-05 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-36...Show more Subject: AC Pumps Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 07/10/1964 Make: Lycoming Engines Model: HIO-360-B1A | HIO-360-B1B | IO-320-B1A | IO-360-A1A | IO-360-B1B | IO-540-C1B5 | O-320-A1A | O-320-A...Show more Product Type: Engine Product Subtype: Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: Updated RGL applicability to match AD applicability; CAR C-11-185 AIRWORTHINESS DIRECTIVES FINAL RULES: 64-16-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-765 AD NUMBER: 64-16-05 SUBJECT HEADING: LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines ACTION: SUMMARY: DATES: Effective July 10, 1964. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 64-16-05 LYCOMING: Amdt. 765 Part 507 Federal Register July 10, 1964. Applies to O-320, O-340, O-360 and O-540 Series Engines Equipped With AC Fuel Pumps, AC 5623-467 (Lycoming P/N 74082), AC 5656880 (Lycoming P/N 74082) and AC 6440152 (Lycoming P/N 74798), and to IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines Equipped With AC Fuel Pumps, AC 5623466 (Lycoming P/N 73973) and AC 5656696 (Lycoming P/N 73870), Except for Recent Production Engines and Remanufactured Engines Listed in Lycoming Service Bulletin No. 298, Which Have Already Incorporated the Modification. Compliance required within 25 hours' time in service after the effective date of this AD unless already accomplished. To preclude the possibility of engine oil being drained overboard as a result of oil seal failure in AC light weight fuel pumps, modify AC pumps with part numbers listed herein in accordance with the instructions contained in Lycoming Service Bulletin No. 298. This directive effective July 10, 1964. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_64-16-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 64-16-05 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-36...Show more Subject: AC Pumps Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 07/10/1964 Make: Lycoming Engines Model: HIO-360-B1A | HIO-360-B1B | IO-320-B1A | IO-360-A1A | IO-360-B1B | IO-540-C1B5 | O-320-A1A | O-320-A...Show more Product Type: Engine Product Subtype: Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: Updated RGL applicability to match AD applicability; CAR C-11-185 AIRWORTHINESS DIRECTIVES FINAL RULES: 64-16-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-765 AD NUMBER: 64-16-05 SUBJECT HEADING: LYCOMING Model O-320, O-340, O-360 and O-540 Series Engines and IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines ACTION: SUMMARY: DATES: Effective July 10, 1964. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 64-16-05 LYCOMING: Amdt. 765 Part 507 Federal Register July 10, 1964. Applies to O-320, O-340, O-360 and O-540 Series Engines Equipped With AC Fuel Pumps, AC 5623-467 (Lycoming P/N 74082), AC 5656880 (Lycoming P/N 74082) and AC 6440152 (Lycoming P/N 74798), and to IO-320-B1A, IO-360-A1A, -B1B, HIO-360-B1A, -B1B and IO-540-C-B5 Engines Equipped With AC Fuel Pumps, AC 5623466 (Lycoming P/N 73973) and AC 5656696 (Lycoming P/N 73870), Except for Recent Production Engines and Remanufactured Engines Listed in Lycoming Service Bulletin No. 298, Which Have Already Incorporated the Modification. Compliance required within 25 hours' time in service after the effective date of this AD unless already accomplished. To preclude the possibility of engine oil being drained overboard as a result of oil seal failure in AC light weight fuel pumps, modify AC pumps with part numbers listed herein in accordance with the instructions contained in Lycoming Service Bulletin No. 298. This directive effective July 10, 1964. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.
Related Airworthiness Directives
2026-04-11 Recurring
final ruleAirworthiness Directives; Lycoming Engines
Unsafe Condition: Reports of connecting rod failures, which resulted in uncontained engine failure and in-flight shutdowns.
2024-21-02 Recurring
final ruleAirworthiness Directives; Lycoming Engines
Unsafe Condition: Connecting rod failures, which resulted in uncontained engine failure and in-flight shutdowns (IFSDs), due to degradation of the connecting rod small end bushings.
2015-19-07
final ruleAirworthiness Directives; Lycoming Engines Fuel Injected Reciprocating Engines
Unsafe Condition: Failure of the fuel injector fuel lines, which could lead to uncontrolled engine fire, engine damage, and damage to the airplane.
2012-03-06
final ruleAirworthiness Directives; Superior Air Parts, Lycoming Engines (Formerly Textron Lycoming), and Continental Motors, Inc., Fuel-Injected Reciprocating Engines
Unsafe Condition: Failed AFS fuel servo diaphragms, part numbers AV2541801 or AV2541803, could lead to an in-flight engine shutdown and damage to the airplane.