SDR CA141201005

Service difficulty report · Ecu · Bell 407

Difficulty date: November 20, 2014
Submitted: March 12, 2015
Operation: General aviation
Make and model: Bell 407
Engine: Allsn 250C47B
System (JASC): 7320 · Fuel Controlling System
Part: Ecu
Condition: Malfunctioned
Location: Engine
Part time: 295 hours
Stage of operation: CR
How discovered: O
Nature of condition: J
Precautionary procedure: O

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

What was found

(CAN) CRUISE FLIGHT AT 0200 HOURS LOCAL, ECU WENT INTO REVERSIONARY MODE. PILOT INTERPRETED CAS MESSAGE "ALT DATA FAIL" WITH WF "D OUT" AS AN ADDITIONAL ANOMALY AND MADE A PRECAUTIONARY LANDING IN A SCHOOL YARD. REPLACEMENT ECU, FROM 54357, WAS INSTALLED AND ACFT WAS FLOWN TO BASE. ECU PN: 63005SOCNM250-10696.

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