What was found
CONTROL CABIN ZONE TEMP ILLUMINATDED ON RECALL. ACFT GROUNDED. REMOVED & REPLACED THE CONTROL CABIN TRIM AIR VALVE, IAW AMM 21-61-21 & 401. LEAK & OPS CHECKED GOOD.
- Difficulty date
- March 27, 2017
- Submitted
- April 3, 2017
- Operation
- Air carrier
- Aircraft
- N471AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41703
- Aircraft time
- 9,837 hours, 3,271 cycles
- System (JASC)
- 2160 · Cabin Temperature Control System
- Part
- Valve
- Part number
- 3989083
- Part serial
- 5296
- Condition
- Failed
- Location
- Lt A/C Pack
- Part time
- 55,466 hours, 21,120 cycles
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.