What was found
R/H PACK LIGHT ILLUMINATES ON MASTER CAUTION RECALL, CABIN TEMP IS HOT SO TURNED R/H PACK OFF PER QRH. GROUNDED - YES. REMOVED AND REPLACED R/H PACK TCV, REF B737-900 AMM 21-51-10. BITE CHECK PASS, NO LEAKS NOTED.
- Difficulty date
- May 2, 2021
- Submitted
- May 4, 2021
- Operation
- Air carrier
- Aircraft
- N481AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 44106
- Aircraft time
- 21,358 hours, 6,832 cycles
- System (JASC)
- 2160 · Cabin Temperature Control System
- Part
- Modulating Valve
- Part number
- 3989085
- Part serial
- 20343
- Condition
- Failed
- Location
- Cabin Temp
- Part time
- 27,709 hours, 8,880 cycles
- Stage of operation
- NR
- How discovered
- V
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.