# SDR DL72S001382

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 21, 2000
- Submitted: July 24, 2000
- Operation: Air carrier
- Aircraft: [N528DA](https://openairdocs.org/aircraft/N528DA), registered now
- Make and model: Boeing 727232
- Aircraft serial: 21702
- Aircraft time: 60,423 hours, 45,388 cycles
- System (JASC): [3340 · Exterior Lighting](https://openairdocs.org/jasc/3340)
- Part: Transformer
- Condition: Shorted
- Location: Cockpit
- Stage of operation: IN
- How discovered: O
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DL72S001382

## Discrepancy

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.

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