Service difficulty report · Control Unit · Boeing 76733A

Difficulty date
December 30, 2007
Submitted
January 2, 2008
Operation
Air carrier
Aircraft
N583HA
Make and model
Boeing 76733A
Aircraft serial
25531
Aircraft time
69,678 hours, 12,678 cycles
Part
Control Unit
Part number
285T0015116
Part serial
000412
Condition
Malfunctioned
Stage of operation
DE
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

ETOPS SIGNIFICANT SYSTEM, EICAS MSG "AILERON LOCKOUT" ILLUMINATED AT 9000 FT ON DESCENT, DECREASING AIRSPEED THRU 240 KTS DISAPPEARED AT 220 KTS AS A/S DECREASED THRU 6000 ALT DID NOT REAPPEAR THRU LANDING. REPLACED SAM PER AMM 27-09-00. PERFORMED TEST AMM 27-11-00. OK PERFORMED MCDP TEST 65 OK. GND CHECK NR 1 AND 2 ADC OK. OK FOR SERVICE.

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