Service difficulty report · Control Valve · Boeing 737890
FAA SDR system
- Difficulty date
- January 5, 2020
- Submitted
- January 9, 2020
- Operation
- Air carrier
- Make and model
- Boeing 737890
- Aircraft serial
- 35688
- Aircraft time
- 44,468 hours, 13,397 cycles
- Part
- Control Valve
- Part number
- 3989085
- Part serial
- 10725
- Condition
- Inoperative
- Location
- Ac Bay
- Part time
- 38,940 hours, 14,366 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
MASTER CAUTION RECALL RIGHT PACK LIGHT ILLUMINATED. LIGHT EXTINGUISHED WITH MASTER CAUTION RESET. PRESSURIZATION NORMAL. GROUNDED - YES. REMOVED AND REPLACED RH PACK TCV REF B737-800 AMM 21-51-10, OPS CHECK LEAK CHECK AND BITE TEST GOOD. GROUND VERIFICATION TEST SUCCESSFUL.