Service difficulty report · Control Valve · Boeing 737890
FAA SDR system
- Difficulty date
- January 29, 2015
- Submitted
- February 2, 2015
- Operation
- Air carrier
- Make and model
- Boeing 737890
- Aircraft serial
- 35186
- Aircraft time
- 30,159 hours, 9,062 cycles
- Part
- Control Valve
- Part number
- 3989084
- Part serial
- 1722
- Condition
- Malfunctioned
- Location
- Rt A/C Pack
- Part time
- 67,415 hours, 36,105 cycles
- Stage of operation
- TX
- 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 ILLUMINATED ON RECALL AND EXTINGUISHES ON MASTER CAUTION RESET. ACFT GROUNDED. REPLACED RT PACK TEMP CONTROL VALVE IAW AMM 21-51-10. PERFORMED BITE CHECK ON RT PACK TEMP CONTROLLER IAW AMM 21-51-00 AND LEAK CHECK IAW AMM 21-51-10. BITE CHECK AND LEAK CHECK GOOD.