What was found
NR 1 HYDRAULIC QUANTITY SYSTEM READ ZERO WITH NO PRESSURE. FOUND LT LCCA HYDRAULIC LINE LEAKING. REPLACED LINE WITH NEW MANUFACTURED LINE. RESERVICED NR 1 SYSTEM. LEAK CHECKED NEW INSTALLED LINE, CHECKED OK.
- Difficulty date
- October 30, 2003
- Submitted
- November 11, 2003
- Operation
- Air carrier
- Aircraft
- N174UA
- Make and model
- Boeing 747422
- Aircraft serial
- 24381
- Aircraft time
- 52,597 hours, 5,843 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 2910 · Hydraulic System, Main
- Part
- Line
- Condition
- Leaking
- Location
- Nr 1 Hyd System
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- K, J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.