Service difficulty report · Pump · Boeing 777223

Difficulty date
December 6, 2022
Submitted
January 10, 2023
Operation
Air carrier
Aircraft
N778AN
Make and model
Boeing 777223
Aircraft serial
29587
Aircraft time
91,416 hours, 11,365 cycles
Part
Pump
Part number
972952
Part serial
MX623860
Condition
Faulted
Location
Hyd System
Part time
83,515 hours, 10,310 cycles
Stage of operation
CR
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

AIRCRAFT WAS GROUNDED: RAN HYDRAULIC PRESSURE PRIMARY RIGHT CHECKLIST AT CRUISE. UPON COMPLETION OF CHECKLIST NOTED RIGHT HYDRAULIC QUANTITY ZERO. EMERGENCY DECLARED INTO MIA. REMOVED AND INSTALLED NEW ENGINE DRIVEN PUMP RIGHT IAW AMM 29-11-05.