What was found
NR 1 ENGINE "VALVE CLOSED LIGHT" REMAINS ILLUMINATED BRIGHT AFTER ENGINE START. REMOVED AND REPLACED NR 1 ENG HIGH PRESSURE SHUT OFF VALVE SWITCH ON NR 1 ENG HMU. REF MM 73 21 09 400 801 F00. PERFORMED NR 1 ENG RUN OP CK GOOD.
- Difficulty date
- June 22, 2010
- Submitted
- June 30, 2010
- Operation
- Air carrier
- Aircraft
- N562AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35091
- Aircraft time
- 14,300 hours, 4,320 cycles
- Engine
- Cfmint CFM567B26US
- System (JASC)
- 7321 · Fuel Control/Turbine Engines
- Part
- Switch
- Part number
- 2688072
- Condition
- Failed
- Location
- Nr 1 Hmu
- 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.