What was found
RIGHT STBY TEMP CONTROL VALVE FAILED AN OPS TEST IAW AMM 21-51-11-400-801. ACFT GROUNDED. REMOVED AND REPLACED THE RT TEMP STANBY CONTROL VALVE IAW AMM 21-51-11. OPS TESTED GOOD.
- Difficulty date
- January 27, 2018
- Submitted
- January 29, 2018
- Operation
- Air carrier
- Aircraft
- N433AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41704
- Aircraft time
- 16,948 hours, 5,569 cycles
- System (JASC)
- 2160 · Cabin Temperature Control System
- Part
- Control Valve
- Part number
- 32902061
- Part serial
- 632
- Condition
- Failed
- Location
- Standy Temp
- Part time
- 58,775 hours, 37,196 cycles
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.