SDR CALA2019083001466

Service difficulty report · Line · Boeing 777224

Difficulty date: August 29, 2019
Submitted: August 30, 2019
Operation: Air carrier
Aircraft: N77012
Make and model: Boeing 777224
Aircraft serial: 29860
Aircraft time: 100,608 hours, 9,903 cycles
System (JASC): 2910 · Hydraulic System, Main
Part: Line
Part number: BOEING
Condition: Ruptured
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

HYD QTY LOW C, EICAS ADVISORY, CENTER HYDRAULIC SYSTEM LOW RESERVOIR QUANTITY. QTY < .40. REF L/P3142147 FOR R&R OF RUPTURED CENTER HYD BRAKE SYS LINE. REF AMM 12-12-01 FOR SERVICING OF HYD RES QUANTITIES NO LEAKS NOTED. OPS CHECK GOOD. L/P3142147- RIGHT MAIN GEAR, AFT TRUCK, HYD BRAKE RETURN HOSE RUPTURED. REMOVED AND REPLACED FLEXIBLE HYD HOSE LINE AS REQUIRED FOR RT MAIN GEAR BRAKE SYSTEM. NO LEAKS NOTED. REF AMM 20-10-10.