Service difficulty report · Control Unit · Bell 407

Difficulty date
March 20, 2014
Submitted
March 12, 2015
Operation
General aviation
Make and model
Bell 407
Engine
Allsn 250C47B
Part
Control Unit
Part number
23088856
Condition
Malfunctioned
Location
Engine
Part time
365 hours
Stage of operation
CR
How discovered
O
Nature of condition
J
Precautionary procedure
A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

(CAN) EXPERIENCED A FADEC FAIL TODAY ON A TEST FLIGHT FOLLOWING A NR 1 BEARING SEAL REPLACEMENT. DURING THE TEST FLIGHT THE FADEC SUDDENLY WENT INTO MANUAL MODE, THROTTLE RESPONDED WITH PILOT INPUTS AND THEY LANDED THE ACFT SAFELY AT AIRPORT. MFG IS SENDING THEM A REPLACEMENT ECU. DOWNLOAD OF THE ECU REVELED NO FAULTS.

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