Service difficulty report · Control Valve · Boeing 737990ER
FAA SDR system
- Difficulty date
- February 22, 2019
- Submitted
- February 26, 2019
- Operation
- Air carrier
- Make and model
- Boeing 737990ER
- Aircraft serial
- 44110
- Aircraft time
- 12,996 hours, 4,348 cycles
- Part
- Control Valve
- Part number
- 3989085
- Part serial
- 20234
- Condition
- Failed
- Location
- Rt A/C Pack
- Part time
- 15,360 hours, 7,832 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.
What was found
RT PACK LIGHT ILLUMINATED ON RECALL. GROUNDED - YES. REF B737-900 AMM 21-61-00-700-806-002, #2 PZTC BITE TEST FAULTED TCV, DUE PAST HISTORY, REQUIRES # 2 PACK TCV TO BE REPLACED. REMOVED AND REPLACED RH TEMP CONTROL VALVE REF AMM 21-51-10. NO LEAKS NOTED. OPS CHECK GOOD.