What was found
LEFT "PACK" LIGHT ILLUMINATED ON MASTER CAUTION RECALL. GROUNDED - YES. #2 ZONE CONTROLLER HAD 'STANDBY PACK' FAULT LOGGED. FAULT CLEARED & CKS GOOD PER B737-900 AMM 21-61-00, GND VERIFICATION SUCCESSFUL.
- Difficulty date
- July 30, 2019
- Submitted
- August 1, 2019
- Operation
- Air carrier
- Aircraft
- N440AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41705
- Aircraft time
- 22,858 hours, 7,447 cycles
- System (JASC)
- 2150 · Cabin Cooling System
- Part
- Warning Message
- Condition
- False Activation
- Location
- Lt A/C Pack
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- N
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.