Service difficulty report · Shutoff Valve · Boeing 737890
FAA SDR system
- Difficulty date
- February 24, 2016
- Submitted
- February 26, 2016
- Operation
- Air carrier
- Make and model
- Boeing 737890
- Aircraft serial
- 35685
- Aircraft time
- 31,785 hours, 9,668 cycles
- Part
- Shutoff Valve
- Part number
- 1074926
- Part serial
- 10148
- Condition
- Failed
- Location
- Nr 1 Engine
- Part time
- 29,673 hours, 11,105 cycles
- Stage of operation
- TX
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- D
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON TAXI OUT, LT DUCT PRESSURE INDICATED ZERO. ACFT GROUNDED. REPLACED PRSOV REF AMM 36-11-04-400-801. REPLACED 450 THERMOSTAT REF AMM 36-11-05-400-801. NO HELP. REPLACED BLEED AIR REGULATOR, REF AMM 36-11-03-400-801. OPS CHECK NORMAL. GROUND VERIFICATION SUCCESSFUL BY ENGINE RUN.