What was found
RETURNED TO SFO UNDER AMBER ALERT DUE TO NR 4 HYDRAULIC SYSTEM PROBLEM .
- Difficulty date
- August 15, 2005
- Submitted
- August 23, 2005
- Operation
- Air carrier
- Aircraft
- N196UA
- Make and model
- Boeing 747422
- Aircraft serial
- 28715
- Aircraft time
- 33,726 hours, 4,260 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 2910 · Hydraulic System, Main
- Part
- Hydraulic System
- Condition
- Malfunctioned
- Location
- Nr 4
- Stage of operation
- CL
- How discovered
- 9
- Nature of condition
- K, J
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.