What was found
ON CLIMB-OUT OF NRT, NR 3 HYDRAULIC SYSTEM WAS LOST. QUANTITY AND PRESSURE DROPPED TO ZERO. FOUND UPPER RUDDER ACTUATOR LEAKING FROM MATING SURFACE OF PROPORTIONAL VALVE AND ACTUATOR. REPLACED GASKET PLATE. NO LEAKS NOTED.
- Difficulty date
- May 22, 2008
- Submitted
- May 27, 2008
- Operation
- Air carrier
- Aircraft
- N452PA
- Make and model
- Boeing 74746NF
- Aircraft serial
- 30810
- Aircraft time
- 32,512 hours, 5,461 cycles
- System (JASC)
- 2910 · Hydraulic System, Main
- Part
- Gasket
- Part number
- 0690001981
- Condition
- Leaking
- Location
- Hyd System
- Stage of operation
- CL
- How discovered
- O
- Nature of condition
- K
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.