AD 99-18-21
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | 328 Support Services GmbH | 328-100 | Airworthiness Directives; DORNIER LUFTFAHRT GmbH Model 328-100 Series Airplanes |
Unsafe Condition
Failure of the engine indication and crew alert system (EICAS) to provide a warning to the flightcrew in the event of failure of the propeller de-ice system, which could result in damage to the airplane and consequent loss of controllability of the airplane.
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Required Actions
Perform a one-time inspection of the propeller de-ice system to verify proper EICAS functioning per Dornier Alert Service Bulletin ASB-328-30-013, Revision 1. If EICAS malfunction is found, repair it prior to further flight using a method approved by FAA or Luftfahrt-Bundesamt (LBA).
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Compliance Time
Within 30 days after the effective date of this AD
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Affected Aircraft
DORNIER LUFTFAHRT GmbH Model 328-100 series airplanes excluding those with Dornier Alert Service Bulletin ASB-328-30-013, Revision 1 accomplished.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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