SDR AALA20120126DFW01

Service difficulty report · Computer · Doug DC983

Difficulty date: January 26, 2012
Submitted: January 31, 2012
Operation: Air carrier
Aircraft: N9407R
Make and model: Doug DC983
Aircraft serial: 49400
Aircraft time: 67,267 hours, 33,488 cycles
System (JASC): 3460 · Flight Management Computing Hardware System
Part: Computer
Condition: Activated
Location: Flight Guidance
Stage of operation: CR
How discovered: O
Nature of condition: G
Precautionary procedure: A

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

What was found

DFW - CREW REPORTED AUTO PILOT FAILURE, DIGITAL FLIGHT GUIDANCE SYSTEM FAILURE, AND FAULTING VERTICAL GYRO. FLIGHT RETURNED DFW LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED ONE AND TWO DIGITAL FLIGHT GUIDANCE COMPUTERS. SYSTEM GROUND CHECK NORMAL OPERATION.

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