SDR EIA2006067

Service difficulty report · Metering Valve · Boeing 747230B

Difficulty date: May 11, 2006
Submitted: May 22, 2006
Operation: Air carrier
Aircraft: N488EV
Make and model: Boeing 747230B
Aircraft serial: 23287
Aircraft time: 82,810 hours, 14,616 cycles
System (JASC): 3240 · Landing Gear Brake System
Part: Metering Valve
Condition: Dirty
Location: Brakes
Stage of operation: TO
How discovered: O
Nature of condition: J
Precautionary procedure: C

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

ON TAKEOFF ROLL, AIRCRAFT PULLING TO THE RIGHT. INSPECT LANDING GEAR BRAKE ASSEMBLY PER MM 52-41-15, OPS CHK OK FOR APPLY AND RELEASE OF BREAKS. RT METERING VALVE FOUND DIRTY, PLUNGER STICKY. CLEANED AND LUBRICATED, GAP CHECKED PER MM 32-41-03. NLG CHECKED FOR PROPER TRAVEL, ALL CABLES PULLEYS, AND ACTUATORS CHECKED NO DEFECTS FOUND PER 32-51-00