What was found
LFT HAND PACK LIGHT ILLUMINATED ON RECALL. GROUNDED - YES. LEFT HAND PACK PRIMARY TEMP CONTROL. BITE OF #1 ZONE TEMP CONTROLLER SHOWS TCV FAULT LAST LEG. ACCOMPLISHED PACK ZONE TEMP CONTROLLER OPS CHECK REF AMM 21-61-21.
- Difficulty date
- September 11, 2019
- Submitted
- September 12, 2019
- Operation
- Air carrier
- Aircraft
- N491AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 44109
- Aircraft time
- 15,341 hours, 5,007 cycles
- System (JASC)
- 2150 · Cabin Cooling System
- Part
- Warning System
- Condition
- False Activation
- Location
- Cockpit
- Stage of operation
- NR
- 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.