What was found
AFTER ENGINE SHUTDOWN, LT SYS DEMAND PUMP DID NOT WORK IN AUTO. TROUBLESHOT IAW WPM 29-11-12, PG 1,2,3. FOUND S26 EDP PRESSURE SWITCH FAULTY. R & R PRESSURE SWITCH, OPS CHECKED NORMAL IAW AMM 29-11-18-401, LEAK CHECKED OK.
- Difficulty date
- September 17, 2013
- Submitted
- September 17, 2013
- Operation
- Air carrier
- Aircraft
- N640GT
- Make and model
- Boeing 7673S1
- Aircraft serial
- 25221
- Aircraft time
- 72,724 hours, 15,311 cycles
- System (JASC)
- 2913 · Hydraulic Pump (Electric/Engine), Main
- Part
- Pressure Switch
- Condition
- Failed
- Location
- Hyd Pump
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.