Service difficulty report · Control Valve · Boeing 737990ER
FAA SDR system
- Difficulty date
- July 19, 2018
- Submitted
- July 20, 2018
- Operation
- Air carrier
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41733
- Aircraft time
- 22,159 hours, 7,337 cycles
- Part
- Control Valve
- Part number
- 3989085
- Part serial
- 20140
- Condition
- Failed
- Location
- Ac Bay
- Part time
- 16,276 hours, 5,657 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.
What was found
RIGHT PACK LIGHT ILLUMINATES ON RECALL AND EXTINGUISHES ON MASTER CAUTION RESET. GROUNDED - YES. REF SSM 21-51-22. ACCOMPLISHED PACK TEMPERATURE CONTROL - BITE PROCEDURE, FIM 21-62 TASK 801. THIS PACK TCV ILLUMINATED. REF FIM 21-62 TASK 831. REQUIRES TCV (V141). REMOVED AND REPLACED RT TCV REF B737-900 AMM 21-51-10 OPS CHECK AND LEAK CHECK GOOD.