SDR UPS97825321

Service difficulty report · Transformer · Doug DC873F

Difficulty date: November 25, 1997
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N814UP
Make and model: Doug DC873F
Aircraft serial: 46090
System (JASC): 3310 · Flight Compartment Lighting
Part: Transformer
Condition: Failed
Location: Overhead Panel
Stage of operation: DE
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

INSPECTION TYPE-N/A, ON DESCENT TO ONTARIO NOTICED SPARKS AND SMOKE FOR A SHORT MOMENT IN OVERHEAD PANEL BEHIND THE FIRE HANDLES. FOUND RED OVERHEAD SWITCH PANEL INTRAL LIGHTS C/B OUT. NO FURTHER SMOKE WAS DEVELOPED. CONNECTOR DC 26F-10-6SW BURNT. REMOVED AND REPLACED TRANSFORMER (P/N 16434) (S/N 3551) ON, (S/N 478). INSTALLED NEW PLUG LTS, OPS GOOD.

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