# SDR 2026FA0000677

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 2, 2026
- Submitted: September 2, 2026
- Operation: General aviation
- Aircraft: [N916DK](https://openairdocs.org/aircraft/N916DK), registered now
- Make and model: Cessna 560XL
- Registry model: [Cessna 560XL](https://openairdocs.org/model/cessna-560xl) (OpenAirDocs)
- Aircraft serial: 5700
- Aircraft time: 8,256 hours, 5,876 cycles
- System (JASC): [2212 · Altitude Controller](https://openairdocs.org/jasc/2212)
- Part: Ahrs
- Part number: 1421851100
- Part serial: 2502
- Condition: Failed
- Location: Zone 100
- Part time: 7,585 hours, 5,304 cycles
- Stage of operation: CR
- 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/2026FA0000677

## Discrepancy

SEPTEMBER 1, 2026, WHILE ENROUTE ON A PASSENGERS CHARTER TRIP FROM EYW TO OKC AT 60 N.M. SOUTH OF  WAYPOINT JAWJA IN VMC CONDITIONS AT FLT 400 PLANE EXPERIENCED AHRS FAILURE. BOTH PFD SCREENS DISPLAYED RED X FOR AUTOMATION INCLUDING AUTO PILOT, FLIGHT DIRECTOR, ALTITUDE HOLD, HEADING, VS, NAVIGATION MODES EMERGENCY CHECKLIST  THEN DIVERTED TO GNV. HAND FLEW AIRPLANE FROM ALTITUDE TO GNV WITH 3 PAX ON BOARD. NO EMERGENCY WAS DECLARED.

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