# SDR UALA2011120906771

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 8, 2011
- Submitted: January 13, 2012
- Operation: Air carrier
- Aircraft: [N673UA](https://openairdocs.org/aircraft/N673UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 29241
- Aircraft time: 43,247 hours, 11,289 cycles
- Engine: Pwa PW4052
- System (JASC): [3452 · ATC Transponder System](https://openairdocs.org/jasc/3452)
- Part: Antenna
- Condition: Failed
- Location: Atc
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2011120906771

## Discrepancy

CREW REPORTS BOTH TRANSPONDERS ARE FAULTY.  REPLACED BOTH UPPER AND LOWER ATC ANTENNAS PER MM.  ACCOMPLISHED SYSTEM TEST PER MM. CHECKED OKAY.

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