AD 2022-03-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Austro | Engine GmbH | Airworthiness Directives; Austro Engine GmbH Engines |
Unsafe Condition
Failure of the high pressure pump (HPP) driving gear due to a worn out assembly tool P/N AE300T012-1, and a stack up of tolerances between the cylinder head, cylinder head backside cover, camshaft gear and HPP driving gear, which may cause premature HPP driving gear failure.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Removal, inspection, and replacement of the HPP driving gear before further flight and, depending on the inspection findings, replacement of the HPP shaft, cylinder head, camshaft gear, or inlet/outlet camshaft bushing. For engines with an affected HPP driving gear, replacement of the HPP driving gear before further flight or within a certain number of flight hours, depending on the engine configuration and number of affected engines installed.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
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Affected Aircraft
Austro Engine GmbH E4 and E4P model diesel piston engines equipped with a certain cylinder head and HPP driving gear combination, or with an affected HPP driving gear.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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