AD 2009-04-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aviat | Various | Airworthiness Directives; Wytwornia Sprzetu Komunikacyjnego “PZL-Rzeszow” S.A. PZL-10W Turboshaft Engines |
Unsafe Condition
The ALRP-5 fuel metering pump units released to service between May 2006 and April 2007 can be vulnerable for seizing, demonstrated by occurrence of aluminum and bronze chips at the filter. This condition, if not corrected, might lead to seizing of the pump and engine RPM decrease.
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Required Actions
Initial and repetitive visual inspections of the fine filter in certain serial number ALRP-5 fuel metering pumps for aluminum and bronze chips at the filter are required. The pump must be removed from service if the filter fails the inspection.
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Compliance Time
Within 50 flight hours after the effective date of this AD.
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Affected Aircraft
Wytwornia Sprzetu Komunikacyjnego 'PZL-Rzeszow' S.A. PZL-10W turboshaft engines with specific serial numbers of ALRP-5 fuel metering pumps installed, including but not limited to PZL Swidnik W3/W3A helicopters.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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