Service difficulty report · Actuator · Boeing 737990ER

Difficulty date
February 26, 2015
Submitted
March 2, 2015
Operation
Air carrier
Aircraft
N461AS
Make and model
Boeing 737990ER
Aircraft serial
36363
Aircraft time
3,551 hours, 1,170 cycles
Part
Actuator
Part number
676000141
Part serial
676000141532
Condition
Failed
Location
Ram Air Exhaust
Part time
3,561 hours, 1,175 cycles
Stage of operation
NR
How discovered
9
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

RT PACK ILLUMS ON RECALL. EXTINGUISHES ON RESET. ACFT GROUNDED. WHILE ON DEFERRAL, RT RAM DOOR FULL OPEN LIGHT ILLUMINATED THROUGHOUT FLIGHT WITH ALTERNATE PACK CONTROLLER IN USE. RT TEMP CONTROLLER BITE CK FAULTS. REPLACED RT RAM AIR EXHAUST ACTUATOR IAW MM 21-51-27. TESTS GOOD IAW SAME. PACK/ZONE TEMP CONTROLLER BITE REF FIM 21-62, TASK 801 SHOWS NO FAULTS. PACK ZONE TEMP CONTROLLER BITE PASSED 5 TIMES WITH NO FAULTS REF FIM 21-62, TASK 801.