Service difficulty report · Actuator · Airbus A319132

Difficulty date
October 28, 2004
Submitted
October 28, 2004
Operation
Air carrier
Aircraft
N820AW
Make and model
Airbus A319132
Aircraft serial
1397
Aircraft time
14,320 hours, 5,259 cycles
Engine
Iae V2524A5
Part
Actuator
Part number
1685MK7
Part serial
1685598
Condition
Failed
Location
Nr 1 Engine Vsv
Part time
15,185 hours, 5,649 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 EWR EN ROUTE TO PHX, RECEIVED ECAM MESSAGE "ENG 1 COMPRESSOR VANE FAILURE", REJECTED TAKEOFF AT 68 KTS. MAINTENANCE REMOVED AND REPLACED THE NR 1 ENGINE VARIABLE STATOR VANE (VSV) ACTUATOR IAW T/C R5M75303, PERFORMED HIGH POWER ASSURANCE TEST, NR 1 ENGINE CHECKED GOOD. FUNCTIONAL TEST OF VSV ACTUATOR CONFIRMED REASON FOR REMOVAL. TEST REVEALED FAULTS WITH LINEAR VARIABLE DISPLACEMENT TRANSMITTER BONDING RESISTANCE AND VOLTAGE, PISTON VELOCITIES, AND INTERNAL LEAKAGE. DISASSEMBLY FOUND A DEFECTIVE TORQUE MOTOR, LACQUER LEVEL 3 ON FILTER SCREENS, AND SEVERAL WORN SEALS. REPLACED ALL DEFECTIVE PARTS, CALIBRATED VOLTAGES, CLEANED THE PISTON AND SLEEVE ASSEMBLIES, AND PERFORMED FINAL TEST IAW CMM.

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