# SDR 2008UALA02617

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 4, 2008
- Submitted: May 6, 2008
- Operation: Air carrier
- Aircraft: [N663UA](https://openairdocs.org/aircraft/N663UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 27160
- Aircraft time: 65,382 hours, 10,712 cycles
- Engine: Pwa PW4060
- System (JASC): [3400 · Navigation System](https://openairdocs.org/jasc/3400)
- Part: Switch
- Part number: D2729B003
- Condition: Inoperative
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2008UALA02617

## Discrepancy

RTFL DUE TO DOUBLE TRANSPONDER FAILURE.  RPLACED ATC ANTENNA SWITCH.

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