# SDR CALA2014021290367

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 12, 2014
- Submitted: February 13, 2014
- Operation: Air carrier
- Aircraft: N590UA
- Make and model: Boeing 757222
- Aircraft serial: 28708
- Aircraft time: 62,781 hours, 17,383 cycles
- Engine: Pwa PW2037
- System (JASC): [3452 · ATC Transponder System](https://openairdocs.org/jasc/3452)
- Part: Switch
- Condition: Faulty
- Location: Atc Transponder
- Stage of operation: IN
- 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/CALA2014021290367

## Discrepancy

TRANSPONDER LT & RT FAILED.  REPLACED TOP ANTENNA COAXIAL SWITCH S10563 IAW AMM 34-53-04,PG401 & 34-53-00, PG501.  BOTH ATC'S CHECKED OK, REINSTALLED FWD, PIT FWD, PANEL & TAPED.

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