What was found
CONT CAB ZONE TEMP LT ILLUM ON RECALL. GROUNDED - YES. R/R FLIGHT DECK TRIM MODULATING VALVE IAW B737-900 AMM 21-61-21.
- Difficulty date
- March 29, 2023
- Submitted
- April 3, 2023
- Operation
- Air carrier
- Aircraft
- N423AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 35206
- Aircraft time
- 36,135 hours, 11,472 cycles
- System (JASC)
- 2160 · Cabin Temperature Control System
- Part
- Valve
- Part number
- 3989083
- Part serial
- 2922
- Condition
- Faulty
- Location
- Left Ecs Bay
- Part time
- 81,847 hours, 32,562 cycles
- Stage of operation
- NR
- How discovered
- V
- Nature of condition
- J
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.