# SDR TWRA9735

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 21, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N603FF
- Make and model: Boeing 747130
- Aircraft serial: 19746
- System (JASC): [3340 · Exterior Lighting](https://openairdocs.org/jasc/3340)
- Part: Switch
- Part number: 8906R1559
- Condition: Failed
- Location: Cockpit
- Stage of operation: AP
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/TWRA9735

## Discrepancy

DURING FINAL APPROACH, A LOUD POP WAS HEARD AND ELECTRICAL SMOKE WAS NOTED.  SMELL WAS NOTED FOR A SHORT TIME.  LOWERED PILOT'S OVERHEAD PANEL AT P7 AND P12 CHECKED FOR BURNED WIRES OR SWITCHES.  FOUND RT INBOARD LANDING LIGHT SWITCH BURNED, REPLACED SWITCH.  (X)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.