Service difficulty report · Check Valve · Airbus A321231

Difficulty date
April 22, 2021
Submitted
April 23, 2021
Operation
Air carrier
Aircraft
N924US
Make and model
Airbus A321231
Aircraft serial
6569
Aircraft time
19,789 hours, 7,613 cycles
Part
Check Valve
Condition
Leaking
Location
Hyd System
Stage of operation
NR
How discovered
9
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: ECAM MESSAGE FOR LOST GREEN HYDRAULIC SYSTEM #1 ENGINE PUMP AND GREEN HYDAULIC SYSTEM LOW PRESSURE. AN EMERGENCY WAS DECLARED AND THE AIRCRAFT LANDED SAFELY WITHOUT FURTHER INCIDENT. REPLACED ENGINE # 1 HYDAULIC PUMP DELIVERY CHECK VALVE WHICH WAS LEAKING PER AMM 29-11-36-000-001-A AND 29-11-36-400-001-A. A SATISFACTORY LEAK / OPERATIONAL CHECK WAS ACCOMPLISHED.

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