Service difficulty report · Control Valve · Boeing 737890
FAA SDR system
- Difficulty date
- September 29, 2015
- Submitted
- October 2, 2015
- Operation
- Air carrier
- Make and model
- Boeing 737890
- Aircraft serial
- 35201
- Aircraft time
- 18,617 hours, 5,540 cycles
- Part
- Control Valve
- Part number
- 3989083
- Part serial
- 11596
- Condition
- Malfunctioned
- Location
- Lt A/C Pack
- Part time
- 22,721 hours, 7,356 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
ON RECALL, LT PACK LIGHT ILLUMINATED. EXTINGUISHES WITH MASTER CAUTION RESET. ACFT GROUNDED. NR 1 TEMP CONTROLLER BITE SHOWS ON BCT/PREV FLT A FAULT OF "THIS PACK TCV". REPLACED LT PACK TEMP CONTROL VALVE IAW AMM 21-51-10-401. OPS AND LEAK CHECK GOOD.