What was found
MASTER CAUTION ZONE TEMP CONT CAB. GROUNDED - YES. R/R LEFT PACK TEMPERATURE CONTROL VALVE IAW B737-900 AMM 21-51-10, OPS TEST OK.
- Difficulty date
- November 24, 2022
- Submitted
- November 28, 2022
- Operation
- Air carrier
- Aircraft
- N419AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41734
- Aircraft time
- 35,839 hours, 11,389 cycles
- System (JASC)
- 2160 · Cabin Temperature Control System
- Part
- Modulating Valve
- Part number
- 3989083
- Part serial
- 19340
- Condition
- Faulted
- Location
- Left Ecs Bay
- Part time
- 13,445 hours, 4,566 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.