SDR DL72S001382

Service difficulty report · Transformer · Boeing 727232

Difficulty date: July 21, 2000
Submitted: July 24, 2000
Operation: Air carrier
Aircraft: N528DA
Make and model: Boeing 727232
Aircraft serial: 21702
Aircraft time: 60,423 hours, 45,388 cycles
System (JASC): 3340 · Exterior Lighting
Part: Transformer
Condition: Shorted
Location: Cockpit
Stage of operation: IN
How discovered: O
Nature of condition: B
Precautionary procedure: K

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

What was found

NOSE WHEEL ILLUMINATION LIGHTS INOP ON WALKAROUND. FOUND TRANSFORMER BUS NR 1 C/B BAD TRANSFORMER T50 HIGH COIL/LOW COIL SHORTED AND WIRING DAMAGED BETWEEN TRANSFORMER AND C/B C354. REPLACED CIRCUT BREAKER, TRANSFORMER AND REPLACED WIRE 455-20.