What was found
UNABLE TO CONTROL CONT CAB TEMP SWINGS UP TO 20 DEGREES. GROUNDED - YES. REMOVED & REPLACED LT PACK TEMP CONTROL VALVE PER AMM 21-51-10-400-801. LEAK CK GOOD. CLEANED TEMP CONTROL CABIN TEMP SENSOR REF AMM 21-61-10. TESTS NORMAL.
- Difficulty date
- July 27, 2018
- Submitted
- July 31, 2018
- Operation
- Air carrier
- Aircraft
- N566AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35182
- Aircraft time
- 44,523 hours, 13,341 cycles
- System (JASC)
- 2150 · Cabin Cooling System
- Part
- Control Valve
- Part number
- 3989085
- Part serial
- 22128
- Condition
- Failed
- Location
- Ac Bay
- Part time
- 13,718 hours, 4,211 cycles
- Stage of operation
- TX
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- D
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.