Service difficulty report · Generator · Boeing 73733A

Difficulty date
December 5, 2005
Submitted
December 12, 2005
Operation
Air carrier
Aircraft
N168AW
Make and model
Boeing 73733A
Aircraft serial
23629
Aircraft time
61,080 hours, 42,420 cycles
Part
Generator
Condition
Inoperative
Location
Nr 1 Engine
Stage of operation
CR
How discovered
O
Nature of condition
H
Precautionary procedure
A

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

What was found

PILOTS REPORTED LOSS OF NR 1 ENG A/C GEN SYS FELL OFFLINE AT FL 350 & WOULD NOT RESET. VOLTS & FREQUENCY READING ZERO. NO CSD LOW OIL PRESSURE LIGHT PRESENT. RESIDUAL VOLTS AT 115. ATTEMPT TO START APU UNSUCCESFUL DIVERTED SLC FOR REPAIRS. MX PLACED NR 1 ENGINE DRIVEN GEN SYS ON MEL. MX SERVICED APU OIL LEVEL TO IT'S PROPER LEVEL & STARTED APU SUCCESSFULLY. OPS CHECKS WERE FOUND OK. R & R NR 2 ENG. GEN IAW AMWEST TASK CARD R5M24002. DISCOVERED YELLOW CONDUCTOR WIRE SHORTING. REPAIRED WIRE. OPS CHECKS WERE GOOD. VENDOR CONFIRMED FAILURE, FAILED INCOMING TEST. TEARDOWN FOUND SCREEN ON STATOR ASSEMBLY LOOSE. THE UNIT WAS REPAIRED AND TESTED IAW CMM 24-20-77 REV.20

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