What was found
LEFT PACK LIGHT ILLUMINATED ON RECALL EXTINGUISHED WITH MASTER CAUTION RESET. GROUNDED - YES. REPLACED TRIM CONTROL VALVE PER B737-900 AMM 21-51-10.
- Difficulty date
- January 10, 2023
- Submitted
- January 13, 2023
- Operation
- Air carrier
- Aircraft
- N428AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 36353
- Aircraft time
- 24,993 hours, 7,824 cycles
- System (JASC)
- 2150 · Cabin Cooling System
- Part
- Modulating Valve
- Part number
- 3989083
- Part serial
- 16689
- Condition
- Faulted
- Location
- Lt Acm
- Part time
- 39,456 hours, 11,511 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.