What was found
ON RECALL LEFT PACK LIGHT ILLUMINATES. EXTINGUISHED WHEN MASTER CAUTION PRESSED. GROUNDED - YES. REMOVED AND REPLACED #1 TCV. REF B737-900 AMM 21-51-10. OPS CHECK GOOD.
- Difficulty date
- December 4, 2018
- Submitted
- December 11, 2018
- Operation
- Air carrier
- Aircraft
- N457AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 36355
- Aircraft time
- 19,330 hours, 6,396 cycles
- System (JASC)
- 2150 · Cabin Cooling System
- Part
- Control Valve
- Part number
- 3989085
- Part serial
- 18274
- Condition
- Failed
- Location
- Lt A/C Pack
- Part time
- 21,843 hours, 7,079 cycles
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.