What was found
DECLARED EMERGENCY -- FLASHING MASTER CAUTION FOR NR 1 ENGINE DRIVEN HYDRUALIC PUMP LOW PRESSURE LIGHT ILLUMINATED IN FLIGHT. A SYSTEM HYDRAULIC QUANTITY DROPPED TO 1/4. REMOVED AND REPLACED NR 1 ENGINE DRIVER HYDRAULIC PUMP PER MM.
- Difficulty date
- June 15, 2011
- Submitted
- June 20, 2011
- Operation
- Air carrier
- Aircraft
- N694SW
- Make and model
- Boeing 7373T5
- Aircraft serial
- 23061
- Aircraft time
- 86,021 hours, 59,128 cycles
- System (JASC)
- 2913 · Hydraulic Pump (Electric/Engine), Main
- Part
- Pump
- Part number
- 623337
- Part serial
- MX514873
- Condition
- Faulty
- Location
- Nr 1 Engine
- Stage of operation
- UK
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.