Service difficulty report · Pump · Airbus A320232

Difficulty date
September 15, 2020
Submitted
September 15, 2020
Operation
Air carrier
Aircraft
N465UA
Make and model
Airbus A320232
Aircraft serial
1341
Aircraft time
62,031 hours, 26,504 cycles
Part
Pump
Part number
3031863001
Part serial
MX641187
Condition
Failed
Location
Nr 1 Hyd System
Part time
764,190 hours, 727,417 cycles
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

LT ENG G HYD PUMP PR LOECAM COMPLETE. PTU WORKED REMOVED AND REPLACED ENGINE DRIVEN HYD PUMP, REF 29-11-51. COMPLETED UP TO STEP 4.E.(6), NEED TO CONTINUE WITH STEP 4.F, AMM 29-11-51-400-010-A 13. ADD EMP:U093933. ROTABLE PARTS CHANGE WAS INDICATED-TT NR 1425186 SN OFF 1187 PUMP, HYDRAULIC OFF 31-2914-9-9003 1187 ON 31-2914-9-9003 6343 ADD EMP:U093933 COMPLETION. 29-11-43-400-010-A STILL REQUIRES LEAK CHECK, ITEM 4.D TO REPLACED NR 1 ENG HYD PUMP CASE DRAIN FILTER, REF AMM FOUND THE HYD PUMP SUPPLY LINE QUICK DISCONNECT CONNECTION AT FIREWALL BACKED OFF FAR ENOUNGH TO WHERE THE INTERNAL SHUT OFF VALVE WAS CLOSED. THE SELF LOCKING FEATURE DOES NOT APPEAR TO BE WORKING CORRECTLY. SEE LOG PAGE 5238455. ADD EMP:U93933 COMPLETED ALL REFERENCED AMM'S AND ACCOMPLISHED LEAK CHECKS. PERFORMED OPERATIONAL CHECK OF ENGINE DRIVEN PUMP DURING IDLE LEAK CHECK. OPS NORMAL, NO LEAKS FOUND.

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