What was found
AFTER START, ON RECALL, THE LEFT PACK LIGHT & CONT CABIN ZONE TEMP LIGHT REMAINED ILLUMINATED. LIGHT EXTINGUISHED WHEN MASTER CAUTION RESET WAS PUSHED. GROUNDED-YES. NR 2 ZTC LOGGED FLIGHT DECK TRIM VALVE. BITE TEST GOOD FAULT RESET.
- Difficulty date
- October 13, 2020
- Submitted
- October 14, 2020
- Operation
- Air carrier
- Aircraft
- N407AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41731
- Aircraft time
- 30,321 hours, 9,586 cycles
- System (JASC)
- 2150 · Cabin Cooling System
- Part
- Warning Light
- Condition
- False Activation
- Location
- Lt A/C Pack
- Stage of operation
- TX
- How discovered
- O
- Nature of condition
- N
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.