AD 62-03-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Lycoming Engines | VO-540-A1A | LYCOMING Model VO-540 Series Engines |
| engine | Lycoming Engines | VO-540-B1A | LYCOMING Model VO-540 Series Engines |
| engine | Lycoming Engines | VO-540-B1B | LYCOMING Model VO-540 Series Engines |
| engine | Lycoming Engines | VO-540-B1B3 | LYCOMING Model VO-540 Series Engines |
| engine | Lycoming Engines | VO-540-B1C | LYCOMING Model VO-540 Series Engines |
| engine | Lycoming Engines | VO-540-B1D | LYCOMING Model VO-540 Series Engines |
| engine | Lycoming Engines | VO-540-B1E | LYCOMING Model VO-540 Series Engines |
| engine | Lycoming Engines | VO-540-C1A | LYCOMING Model VO-540 Series Engines |
| engine | Lycoming Engines | VO-540-C1B | LYCOMING Model VO-540 Series Engines |
Unsafe Condition
Failures of the hydraulic valve tappet body and plunger assembly
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install Lycoming P/N 72876 plunger assembly and Lycoming P/N 73061 tappet body at the next engine overhaul after the effective date of this AD.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
next engine overhaul after the effective date of this AD
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Lycoming Engines VO-540 Series Engines including models VO-540-A1A, VO-540-B1A, VO-540-B1B, VO-540-B1B3, VO-540-B1C, VO-540-B1D, VO-540-B1E, VO-540-C...
AI-generated summary from the source AD text. Verify against the official source before acting.
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.