AD 2010-05-10
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Raytheon Aircraft Company | Models B300 and B300C | Airworthiness Directives; Hawker Beechcraft Corporation (Type Certificate Previously Held by Raytheon Aircraft Company) Models B300 and B300C Airplanes |
| aircraft | Raytheon | Various | Airworthiness Directives; Hawker Beechcraft Corporation (Type Certificate Previously Held by Raytheon Aircraft Company) Models B300 and B300C Airplanes |
| aircraft | Beechcraft | Various | Airworthiness Directives; Hawker Beechcraft Corporation (Type Certificate Previously Held by Raytheon Aircraft Company) Models B300 and B300C Airplanes |
Unsafe Condition
Installation of an incorrect bus bar on the terminal board of the circuit card rack assembly could result in failure of the pitot heat annunciators to illuminate, leading to the pilot being unaware of frozen moisture on the pitot tube(s) and causing erroneous flight instrument indications.
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Required Actions
Inspect the terminal board on the circuit card rack assembly to determine if the correct bus bar is installed and replace if necessary. Perform an operational check of the left and right pitot heat annunciators for proper operation and take corrective action as necessary.
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Compliance Time
Before further flight
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Affected Aircraft
Hawker Beechcraft Corporation Models B300 and B300C airplanes with serial numbers FL-381, FL-383 through FL-530, FL-532, FL-534 through FL-596, FL-598, and FL-600.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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