What was found
FLIGHT DECK TEMPERATURE REMAINS COLD EVEN WITH CONTROL CABIN TEMPERATURE SELECTOR TO FULL WARM. ACFT GROUNDED. IAW FIM 21-61 TASK 861 REPLACED THE TRIM AIR PRSOV IAW AMM 21-62-01. CORRECTED THE FAULT.
- Difficulty date
- March 2, 2018
- Submitted
- March 6, 2018
- Operation
- Air carrier
- Aircraft
- N493AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41727
- Aircraft time
- 7,314 hours, 2,474 cycles
- System (JASC)
- 2160 · Cabin Temperature Control System
- Part
- Valve
- Part number
- 32149721
- Part serial
- 5223
- Condition
- Failed
- Location
- Rt A/C Pack
- Part time
- 7,314 hours, 2,474 cycles
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.