# SDR 99ZZZX212

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 9, 1998
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N163BK
- Make and model: Bolkms BK117A3
- Aircraft serial: 7063
- System (JASC): [3340 · Exterior Lighting](https://openairdocs.org/jasc/3340)
- Part: Control Unit
- Part number: 1179203103
- Condition: Failed
- Location: External Lights
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/99ZZZX212

## Discrepancy

CONTROL UNIT FOR EXTERNAL LIGHTS HAS INTERNAL SHORT.  TRIPPED CIRCUIT BREAKERS UPON INSTALLATION.  REPLACED WITH NEW UNIT, CORRECTED PROBLEM.

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