What was found
L PACK CAUTION LIGHT. RESETS ON MASTER CAUTION RESET. GROUNDED - YES. REMOVED & REPLACED L PACK TEMP. CONTROL VALVE REF B737-900 AMM 21-51-10/401 OPS CHECK GOOD, NO LEAK FOUND.
- Difficulty date
- October 21, 2022
- Submitted
- October 24, 2022
- Operation
- Air carrier
- Aircraft
- N464AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 40714
- Aircraft time
- 32,054 hours, 9,948 cycles
- System (JASC)
- 2150 · Cabin Cooling System
- Part
- Modulating Valve
- Part number
- 3989083
- Part serial
- 8627
- Condition
- Faulty
- Location
- Left Ecs Bay
- Part time
- 57,170 hours, 19,262 cycles
- Stage of operation
- NR
- How discovered
- V
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.