What was found
CABIN ZONE LIGHT ILLUMINATED ON RECALL. EXTINGUISHES WHEN MASTER CAUTION PRESSED. REPLACED ZONE TRIM MODULATING VALVE (FLT DECK) REF AMM 21-61-21-400-801.
- Difficulty date
- February 16, 2012
- Submitted
- February 21, 2012
- Operation
- Air carrier
- Aircraft
- N518AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35693
- Aircraft time
- 11,333 hours, 3,437 cycles
- System (JASC)
- 2150 · Cabin Cooling System
- Part
- Control Valve
- Part number
- 3989083
- Part serial
- 9165
- Condition
- Malfunctioned
- Location
- A/C Pack
- Part time
- 16,813 hours, 5,900 cycles
- Stage of operation
- TX
- 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.