Service difficulty report · Control Unit · Airbus A321253NX

Difficulty date
May 28, 2023
Submitted
July 28, 2023
Operation
Air carrier
Aircraft
N418AN
Make and model
Airbus A321253NX
Aircraft serial
9550
Aircraft time
2,661 hours, 9,782 cycles
Part
Control Unit
Part number
612C3501503
Part serial
WWD00938
Condition
Leaking
Location
Zone 400 - Nac/P
Part time
5,361 hours, 1,442 cycles
Stage of operation
CL
How discovered
V
Nature of condition
J, K
Precautionary procedure
A, O

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

What was found

AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT DIVERTED TO PHX: DURING CLIMB LOST ALL GREEN HYDRAULIC SYSTEM. FLIGHT CREW MANUALLY EXTENDED THE LANDING GEAR AND LANDED SAFELY AT PHX WITHOUT FURTHER INCIDENT. **ORIGINAL REPORT WAS AALA202306015493** MAINTENANCE FOUND THE #1 ENGINE GRREEN HYDRAULIC PUMP PRESSURE LINE CHAFFED / LEAKING AND REPLACED IT. ALSO FOUND THE #1 ENGINE THRUST REVERSER ISOLATION CONTROL UNIT LEAKING AND REPLACED IT. (AALA202307282907) A SATISFACTORY LEAK / OPERATIONAL CHECK WAS ACCOMPLISHED.

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