What was found
PACK LIGHT ILLUMINATED ON RECALL, EXTINGUISHES WITH MASTER CAUTION RESET. GROUNDED - YES. REMOVED AND REPLACED TRIM MODULATOR VALVE LEAK AND OPS NORMAL PER B737-800 AMM 21-51-10.
- Difficulty date
- April 9, 2020
- Submitted
- April 13, 2020
- Operation
- Air carrier
- Aircraft
- N569AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35184
- Aircraft time
- 49,530 hours, 14,979 cycles
- System (JASC)
- 2150 · Cabin Cooling System
- Part
- Modulating Valve
- Part number
- 3989083
- Part serial
- 1526
- Condition
- Faulty
- Location
- Ac Bay
- Part time
- 90,605 hours, 40,566 cycles
- Stage of operation
- NR
- 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.