SDR 9510346614

Service difficulty report · Anti-Skid Module · Boeing 747251B

Difficulty date: June 30, 1995
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N614US
Make and model: Boeing 747251B
Aircraft serial: 20359
System (JASC): 3241 · Brake Anti-Skid Section
Part: Anti-Skid Module
Part number: 392331A
Condition: Leaking
Location: Lt Body Gear
Part time: 71,522 hours
Stage of operation: CL
Nature of condition: K, J
Precautionary procedure: A, J

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

What was found

DURING CLIMB AND GEAR RETRACTION, THE NR 4 HYDRAULIC SYSTEM QUANTITY DECREASED TO 1 GALLON. THE CREW DUMPED APPROXIMATELY 100,000 LBS OF FUEL, RETURNED TO MSP, AND LANDED WITHOUT INCIDENT. REPLACED THE LEFT BODY GEAR ANTI-SKID CONTROL MODULE, LEAK AND OPERATIONAL CHECK OK.