# SDR CWQR20160307011

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 7, 2016
- Submitted: March 7, 2016
- Operation: Air carrier
- Aircraft: [N837QS](https://openairdocs.org/aircraft/N837QS), registered now
- Make and model: Cessna 560CESSNA
- Aircraft serial: 5600685
- Aircraft time: 8,312 hours
- System (JASC): [3310 · Flight Compartment Lighting](https://openairdocs.org/jasc/3310)
- Part: Rheostat
- Part number: RV6NAYSD252A
- Condition: Burned
- Location: Cockpit
- Stage of operation: IN
- How discovered: C
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CWQR20160307011

## Discrepancy

REPLACED FLIGHT COMPARTMENT FLOOD LIGHT RHEOSTAT DUE TO DEAD SPOTS ON RHEOSTAT.  DURING OPERATIONAL CHECK OF NEW RHEOSTAT, WHEN SELECTING DIM, THE RHEOSTAT HEATED UP, EMITTED SPARKS, SMOKE & NR 2 TERMINAL MELTED & FELL OFF RHEOSTAT.  AFTER TROUBLESHOOTING FLOOD LIGHT ELEC SYS, FOUND THE MODEL 560 ENCORE WIRING DIAGRAM MANUAL REV 4 33-10-01 PAGE 1 SHEET 1, HAS INCORRECT TERMINAL NR ASSIGNED TO FLOOD LIGHT RHEOSTAT DESIGNATED AS R13 ON DIAGRAM.

---
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.