# SDR J7SA2026072800505

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 22, 2026
- Submitted: July 29, 2026
- Operation: Air carrier
- Aircraft: [N392FX](https://openairdocs.org/aircraft/N392FX), registered now
- Make and model: Emb EMB-505
- Registry model: [EMB EMB-505](https://openairdocs.org/model/embraer-executive-emb-505) (OpenAirDocs)
- Aircraft serial: 50500707
- System (JASC): [3440 · Independent Position Determining System](https://openairdocs.org/jasc/3440)
- Part: Radio
- Part number: 0110317710
- Condition: Faulted
- 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/J7SA2026072800505

## Discrepancy

CREW RECEIVED INTERMITTED GND SPLR FAIL AND HSDB FAULT CAS MESSAGES DURING FLIGHT. ENG NO DISPATCH, E2 TTO HTR FAIL CAS, AND RIGHT OIL PRESSURE TEMP YELLOW X'S DISPLAYED ENTIRE FLIGHT. THIS AIRCRAFT IS ONE OF 17 AIRCRAFT IN THE FLEXJET FLEET THAT IS EQUIPPED WITH  XM RADIO AND AVIONICS SOFTWARE LOAD 18.10. IN THIS CONFIGURATION, THE RECEIVER CAN GO INTO RESET MODE WHEN IT RECEIVES CERTAIN PACKETS OF DATA FROM SIRIUS XM. DURING A XM RADIO RESET, IT DRAWS DOWN THE HSDB, RESULTING IN SOME OR ALL OF FOLLOWING CAS MESSAGES: HSDB FAULT, ENGINE NO DISPATCH, E2 TT0 HTR FAIL, GND SPLR FAIL. FURTHER, IT CAN DRIVE THE FOLLOWING GTC MESSAGES: GDL69 FAIL AND FAILED DATA PATH. LASTLY, THE FOLLOWING MFD ENGINE INDICATIONS MAY BE PRESENT: YELLOW X OVER E1 AND E2 OIL PRESSURE, YELLOW X OVER N1 AND N2 ENGINE, YELLOW X OVER LH AND RH ITT, YELLOW X OVER LFE VALUE. EMBRAER IS INVESTIGATING (CASE # EEJ-05526497). XM RADIO DISABLED AND PLACED ON MEL.

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