What was found
NR 2 FWD OVERRIDE PUMP OPERATING WHEN IT SHOULD BE OFF. OPS CHECKED NR 2 FWD OVERRIDE PUMP, REF AMM 28-31-01. CYCLED BOOST PUMP SWITCH OFF & ON, NO FAULTS FOUND.
- Difficulty date
- April 5, 2013
- Submitted
- April 25, 2013
- Operation
- Air carrier
- Aircraft
- N116UA
- Make and model
- Boeing 747422
- Aircraft serial
- 26908
- Aircraft time
- 57,960 hours, 6,710 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 2822 · Fuel Boost Pump
- Part
- Warning Light
- Condition
- False Activation
- Location
- Pump
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.