- Difficulty date
- December 9, 2009
- Submitted
- December 17, 2009
- Operation
- Air carrier
- Make and model
- Boeing 737890
- Aircraft serial
- 35178
- Aircraft time
- 12,355 hours, 3,665 cycles
- Part
- Valve
- Part number
- 3989083
- Part serial
- 1667
- Condition
- Failed
- Location
- A/C Bay
- Part time
- 55,515 hours, 29,960 cycles
- Stage of operation
- TX
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON RECALL AIR COND MASTER CAUTION CONT CAB ZONE TEMP ILLUMINATED. QRH COMPLETED CREW PROCEDURE ACCOMPLISHED: DUCT TEMP INDICATOR OPS NORMAL. REF FIM: 21 62/832 FOUND PRIMARY TEMP CONTROLLER LOGGED FLT DECK TRIM VALVE FAIL (ACTIVE FAULT). REMOVED & REPLACED FLT DECK TRIM VALVE REF MM 21 61 21. OPS CHECK OK. NO FAULTS LOGGED.