Service difficulty report · Control Valve · Boeing 737990ER
FAA SDR system
- Difficulty date
- November 7, 2014
- Submitted
- November 11, 2014
- Operation
- Air carrier
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41705
- Aircraft time
- 3,893 hours, 1,234 cycles
- Part
- Control Valve
- Part number
- 3989084
- Part serial
- 20234
- Condition
- Malfunctioned
- Location
- Rt A/C Pack
- Part time
- 3,901 hours, 1,236 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.
What was found
RT PACK LIGHT "ON" RECALL RESETS WITH MASTER CAUTION. ACFT GROUNDED. RT PACK/ZONE TEMP CTRL FAULTS. "TCV-THIS PACK". REPLACED RT TCV REF MM 21-51-10. TCV INSTALLATION TEST NORMAL IAW SAME. LEAK CHECKED GOOD. NO LEAKS NOTED. REF AMM 21-51-10.