Service difficulty report · Pump · Boeing 7377BD

Difficulty date
June 10, 2026
Submitted
June 11, 2026
Operation
Air carrier
Aircraft
N7746C
Make and model
Boeing 7377BD
Aircraft serial
33934
Aircraft time
60,649 hours, 32,582 cycles
Part
Pump
Condition
Leaking
Location
Zone 100
Stage of operation
LD
How discovered
O
Nature of condition
K, J
Precautionary procedure
O

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

What was found

AFTER LANDING NR 1 ENGINE A HYDRAULIC SYSTEM LOW PRESSURE LIGHT CAME ON. NOTICED BOTH QTY & PRESSURE FOR A SYSTEM HYDRAULICS GOING TO ZERO. BOTH NR 1 ENG AND ELEC 2 A SYSTEM LOW PRESSURE LIGHTS. FOUND LT MAIN LANDING GEAR ACTUATOR ASSY RETRACT HYD HOSE DAMAGED. R & R THE HOSE IAW AMM 32-32-11, R & R NR 2 ENGINE ENG DRIVEN PUMP, OPS CHKD GOOD IAW AMM 29-11-11. L/H MLG RETRACT ACTUATOR HYDRAULIC HOSE LEAKED CHKD GOOD IAW AMM 32-32-11.

More about the Boeing 737-7BD