Service difficulty report · Computer · Boeing 737890

Difficulty date
December 6, 2011
Submitted
December 9, 2011
Operation
Air carrier
Aircraft
N506AS
Make and model
Boeing 737890
Aircraft serial
35690
Aircraft time
13,094 hours, 4,261 cycles
Part
Computer
Part number
8221604101
Part serial
16D2Y7
Condition
Malfunctioned
Location
E&E Bay
Part time
12,785 hours, 4,637 cycles
Stage of operation
NR
How discovered
O
Nature of condition
O
Precautionary procedure
K

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

What was found

CAPT AUTOPILOT AND FLIGHT DIRECTOR FAIL. SPEED AND MACH TRIM FAIL. AUTOTHROTTLES FAIL. ALL FAILURES OCCURED AT SAME TIME. RE-INSTALLED FCC "B" AND REPLACED FCC "A". DFCS LOGGED 22 11628 22 11356. COMPLIED WITH FIM 22 15 TASK 824 + 825. GROUND VERIFICATION SUCCEEFUL WITH FCC "A" REPLACEMENT. REF MM 22 11 33 BITE GRP #35 AND 49 HGS 34 36 0.