Service difficulty report · Control Valve · Boeing 737990ER
FAA SDR system
- Difficulty date
- April 27, 2014
- Submitted
- April 29, 2014
- Operation
- Air carrier
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41732
- Aircraft time
- 5,453 hours, 1,734 cycles
- Part
- Control Valve
- Part number
- 3989084
- Part serial
- 1993
- Condition
- Malfunctioned
- Location
- A/C Bay
- Part time
- 61,375 hours, 33,628 cycles
- Stage of operation
- TX
- How discovered
- O
- 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
CONT CAB "ZONE TEMP" LIGHT ILLUMINATES ON MASTER CAUTION RECALL AND EXTINGUISHES ON MASTER CAUTION RESET. ACFT GROUNDED. PERFORMED PACK/ZONE TEMPERATURE CONTROLLER BITE IAW FIM 21-62, TASK 801, FAULTED LT PACK TCV. REMOVED LT PACK TEMP CONTROL VALVE IAW MM 21-51-10-000-801. INSTALLED TEMP CONTROL VALVE IAW MM 21-51-400-801. OPS CHECKED IAW MM 21-51-10-400-801. OPS CHECKED GOOD.