# SDR DXTA2026032407359

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 22, 2026
- Submitted: March 24, 2026
- Operation: Air carrier
- Aircraft: [N874QS](https://openairdocs.org/aircraft/N874QS), registered now
- Make and model: Textrn TEXTRON700
- Aircraft serial: 7000131
- Aircraft time: 1,604 hours, 956 cycles
- System (JASC): [3420 · Attitude and Direction Data System](https://openairdocs.org/jasc/3420)
- Part: Adc
- Condition: Faulted
- Location: Zone 100
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2026032407359

## Discrepancy

ON TAKEOFF AT ROTATION AMBER 'BOTH ON ATT/HDG 2' PFD MSG DISPLAYED. IN CRUISE FLIGHT PILOT SIDE OUTBOARD GTC WAS ON HDG 2 WHEN HDG 1 SELECTED AMBER PFD MSG CLEARED. SHORTLY AFTER AMBER 'BOTH ON ADC2' PFD MSG DISPLAYED AND STAYED ON REMAINDER OF FLIGHT.   RERACKED ADC1 AND PERFORMED OPS/FUNCTIONAL CHECKS. OPS CHECKS GOOD. IAW CE700 AMM 34-10-00

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