Service difficulty report · Pump · Airbus A320232

Difficulty date
November 11, 2021
Submitted
November 12, 2021
Operation
Air carrier
Aircraft
N401UA
Make and model
Airbus A320232
Aircraft serial
435
Aircraft time
85,043 hours, 32,969 cycles
Part
Pump
Part number
974540
Part serial
4877
Condition
Inoperative
Location
Na
Stage of operation
DE
How discovered
O
Nature of condition
J
Precautionary procedure
B

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

What was found

CREW REPORTS HYD B RES LO LVL MESSAGE WITH INDICATION OF BLUE HYDRAULIC SYSTEM BEING EMPTY. LOCKED BY TOMC MGR DUE TO EMERGENCY DECLARED FOR LANDING. UPDATED MAA CODE FIX USING VENDOR MAA SCREEN CHECK RESERVOIR AND OTHER BLUE HYDRAULIC SYSTEMS. ITEM UNLOCKED TOMC SMITH REPLACED BLUE SYSTEM ELECTRIC HYDRAULIC PUMP REF AMM 29-12-15, REPLACED BLUE SYSTEM LP FILTER, HP FILTER AND CASE DRAIN FILTER PRECAUTIONARY, SERVICED BLUE SYSTEM. LEAK AND OPS CHECKS GOOD. ADD EMP:353556 ROTABLE PARTS CHANGE WAS INDICATED - TT # 1994270 SN OFF 4877 PUMP, AC MOTOR OFF 31-2914-9-0001 4877 ON 31-2914-9-0001 2824

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