AD 2011-18-19
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Austro | Engine GmbH Model E4 Diesel Piston | Airworthiness Directives; Austro Engine GmbH Model E4 Diesel Piston Engines |
Unsafe Condition
Excessive oscillations in the fuel pressure supply can expose high-pressure (HP) fuel pumps to damaging pressure oscillations, potentially leading to engine power loss or in-flight shutdown.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the fuel pressure supply for excessive oscillations using the specified schedule. Replace the HP fuel pump with P/N E4A-30-200-000 if oscillations exceed 300mV (750hPa). As a mandatory terminating action, replace the HP fuel pump P/N E4A-30-100-000 with P/N E4A-30-200-000 within 120 flight hours after the effective date.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 10 flight hours after the effective date for engines with 45 flight hours or more; before 55 flight hours TSN or TSLI for engines with fewer than 45 flight hours; before 55 flight hours TSLI for repetitive inspections.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Austro Engine GmbH Model E4 Diesel Piston Engines with high-pressure (HP) fuel pump, part number (P/N) E4A-30-100-000, installed.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.