MANUFACTURER: Austro Engine GmbH Model E4
Diesel Piston Engines SUBJECT: Airworthiness Directive 2011-18-19 ACTION: Final rule.
SUMMARY: The FAA is superseding an existing
airworthiness directive (AD) for the products listed above. That AD
currently requires frequent inspections of the fuel pressure supply
for excessive oscillations to determine if high-pressure (HP) fuel
pumps have been exposed to damaging pressure oscillations. Pumps
that have been exposed require replacement before further flight.
This new AD requires the initial and repetitive inspections of AD
2010-23-09, but also requires installing HP fuel pump part number
(P/N) E4A-30-200-000, as mandatory terminating action to the
repetitive inspections. The FAA is issuing this AD to prevent
engine power loss or in-flight shutdown, which could result in loss
of control of the airplane.