Service difficulty report · Rectifier · Boeing 7373Y0

Difficulty date
April 14, 2002
Submitted
May 8, 2002
Operation
Air carrier
Aircraft
N334AW
Make and model
Boeing 7373Y0
Aircraft serial
23747
Aircraft time
39,002 hours, 22,746 cycles
Part
Rectifier
Part number
08020325
Part serial
4427
Condition
Faulty
Location
E/E Bay
Stage of operation
CR
How discovered
O
Nature of condition
J, B, G
Precautionary procedure
A

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

What was found

DURING CRUISE NR 2 AFT FUEL PUMP LOW PRESSURE LIGHT AND FIRST OFFICERS PITOT STATIC 1 AUX P/S ILLUMINATED . NR 2 TRANSFORMER RECTIFIER CIRCUIT BREAKER POPPED FOLLOWED BY A STRONG ELECTRICAL BURNING SMELL. AN EMERGENCY WAS DECLARED AND AIRCRAFT DIVERTED TO ABQ. DURING FINAL APPROACH AFTER DISCONNECTING AUTOPILOT; THE ELECTRICAL STABILIZER TRIM FAILED, AND STANDBY ALTIMETER, AIR SPEED INDICATOR & VIBRATION CIRCUIT BREAKERS POPPED. MX TROUBLESHOT, FOUND A BURNED SPOT WITH BURNT ELECTRICAL ODOR ON NR 2 TRANSFORMER RECTIFIER. REPLACED NR 2 TRANSFORMER RECTIFIER. OPERATIONAL CHECKS PERFORMED ON STANDBY ALTIMETER, FUEL PUMP, HORIZONTAL STABILIZER TRIM CONTROL SYSTEM AND PITOT STATIC. ALL CHECKS GOOD.

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