# SDR TWRA0021

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 23, 2000
- Submitted: May 31, 2000
- Operation: Air carrier
- Aircraft: N618FF
- Make and model: Boeing 747 212B
- Registry model: [Boeing 747 212B](https://openairdocs.org/model/boeing-747-212b) (OpenAirDocs)
- Aircraft serial: 21937
- System (JASC): [3310 · Flight Compartment Lighting](https://openairdocs.org/jasc/3310)
- Part: Switch
- Part number: A350
- Condition: Shorted
- Location: Cockpit
- Stage of operation: DE
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/TWRA0021

## Discrepancy

FOUND STRONG SMELL OF BURNING ELECTRICAL WIRES IN COCKPIT.  DURING DESCENT, THE LANDING LIGHT SWITCHES ACTIVATED.  FOUND RIGHT OUTBOARD LANDING LIGHT SWITCH SHORTED.  REPLACED SWITCH, OPERATIONAL CHECK NORMAL.  (M)

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