SDR AALA201901149014

Service difficulty report · Line · Boeing 777323ER

Difficulty date: January 11, 2019
Submitted: January 14, 2019
Operation: Air carrier
Aircraft: N720AN
Make and model: Boeing 777323ER
Aircraft serial: 33522
Aircraft time: 25,380 hours, 2,850 cycles
System (JASC): 2910 · Hydraulic System, Main
Part: Line
Condition: Leaking
Location: Hyd System
Stage of operation: CL
How discovered: O
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.

What was found

CLIMBING THROUGH 17,000 FEET, LOST CENTER HYDRAULIC PRESSURE AND QUANTITY. EMERGENCY DECLARED AND LANDED WITHOUT FURTHER INCIDENT. THE AIRCRAFT WAS GROUNDED. MAINTENANCE ACCOMPLISHED ATBT AND REPLACED HYDRAULIC SYSTEM PRESSURE, NO CONTAMINATION FOUND IAW AMM 29-11-41. MAINTNENACE ALSO FOUND MAIN LANDING GEAR TRUCK STEERING ACTUATOR LINE LEAKING AND REPLACED LINE PER AMM 32-53-00 AND PERFORMED SATISFACTORY OPERATIONAL CHECK.