Service difficulty report · Generator · Airbus A320231

Difficulty date
March 31, 2005
Submitted
April 4, 2005
Operation
Air carrier
Aircraft
N627AW
Make and model
Airbus A320231
Aircraft serial
66
Aircraft time
50,918 hours, 22,883 cycles
Part
Generator
Part number
766219
Part serial
1593
Condition
Damaged
Location
Nr 1 Engine
Part time
27,104 hours, 10,883 cycles
Stage of operation
TO
How discovered
O
Nature of condition
J
Precautionary procedure
C

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

What was found

ON TAKEOFF AT LAS EN ROUTE TO MSP RECEIVED CLASS I ECAM MESSAGE ELECT IDG OIL LOW PRESSURE, REJECTED TAKEOFF AT 50 KTS. ISSUED MEL 24-20-01, COND 2 NR 1 IDG INOP. MAINTENANCE TROUBLESHOT THE NR 1 IDG PER TSM TASK 24-20-00-810 AND FOUND METALIC PARTICLES IN THE FILTER AND HOUSING ASSEMBLIES. REMOVED AND REPLACED NR 1 IDG IAW T/C R5M24301, OPERATIONAL CHECK WAS GOOD. FAILURE ANALYSIS OF IDG S/N 1593 CONFIRMED REASON FOR REMOVAL FINDING SMALL METAL PARTICLES IN SCAVENGE FILTER CAUSING IT TO CLOG. FURTHER INVESTIGATION REVEALED FIXED SPINE SHAFT INBOARD BEARING INNER RACE WAS END LOADING CAUSE BEARING FAILURE. VENDOR RECOMMENDS THIS UNIT TO BE OVERHAULED.

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