# SDR DL76L060624

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 3, 2006
- Submitted: August 8, 2006
- Operation: Air carrier
- Aircraft: [N189DN](https://openairdocs.org/aircraft/N189DN), registered now
- Make and model: Boeing 767332
- Aircraft serial: 25990
- Aircraft time: 46,054 hours, 7,072 cycles
- System (JASC): [3445 · Air Collision Avoidance System](https://openairdocs.org/jasc/3445)
- Part: Processor
- Part number: 066500002120
- Part serial: 2329
- Condition: Unserviceable
- Location: Tcas
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DL76L060624

## Discrepancy

PRIOR TO TAKEOFF WHEN TCAS SELECTED TCAS INOP ON VSI AND NO TCAS ON RADAR SCREEN.  REPLACED TCAS PROCESSOR.  TEST OK.

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