What was found
L "PACK" DURING RECALL, RESET WITH MASTER CAUTION DURING QRH. GROUNDED - YES. REMOVED AND REPLACED LH PACK AIR MODULATING VALVE PER B737-900 AMM 21-61-21-400-801. OPS CK GOOD.
- Difficulty date
- September 11, 2021
- Submitted
- September 16, 2021
- Operation
- Air carrier
- Aircraft
- N448AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 36356
- Aircraft time
- 19,162 hours, 6,110 cycles
- System (JASC)
- 2150 · Cabin Cooling System
- Part
- Modulating Valve
- Part number
- 3989085
- Part serial
- 26398
- Condition
- Faulted
- Location
- Lt A/C Bay
- Part time
- 19,199 hours, 6,126 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.