AD 78-25-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Lycoming Engines | O-235-L2C | AVCO LYCOMING Model O-235-L2C Engines |
Unsafe Condition
Failure of condensers installed in the Slick 40xx series magnetos can cause engine stoppage.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace Slick Models 4050, 4051, 4052, or 4081 magnetos with Models 4150, 4151, 4152, or 4181 (serial numbers 8100001 and up) or approved equivalents. Compliance must be done prior to further flight for engines with less than 75 hours, or within 50 hours in service after the AD's effective date for those with 75+ hours.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Prior to further flight for engines with less than 75 hours of operation; within 50 hours in service after December 8, 1978 for engines with 75 hours or more.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
AVCO Lycoming Model O-235-L2C engines installed in Piper Model PA-38-112 aircraft.
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
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