AD 2021-24-10
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Austro | Engine GmbH | Airworthiness Directives; Austro Engine GmbH Engines |
Unsafe Condition
prevent failure of the engine lubrication system. The unsafe condition, if not addressed, could result in failure of the engine, in-flight shutdown, and loss of the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
For Austro Engine GmbH E4 and E4P model diesel piston engines having an oil pump, part number (P/N) E4A-50-000-BHY, with a serial number (S/N) listed in paragraph 1.2., Engines Affected, of Austro Engine GmbH Mandatory Service Bulletin No. MSB-E4-030/4, Revision No. 4, dated March 30, 2021 (the MSB), within the compliance time specified in Table 1 to paragraph (g) of this AD or before further flight, whichever occurs later: (1) Remove the oil pump, P/N E4A-50-000-BHY, from service and replace with a part eligible for installation using the Accomplishment/Instructions, paragraph 2.2.1 or paragraph 2.2.2, of the MSB, as applicable. (2) Replace the oil filter and engine oil using the Accomplishment/Instructions, paragraph 2.2.1 or paragraph 2.2.2, of the MSB, as applicable.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the compliance times specified, unless already done.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
All Austro Engine GmbH E4 and E4P model diesel piston engines.
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.