# SDR TSAA2026042400002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 24, 2026
- Submitted: April 24, 2026
- Operation: Air carrier
- Aircraft: [N405YK](https://openairdocs.org/aircraft/N405YK), registered now
- Make and model: Boeing 737436
- Aircraft serial: 25267
- Aircraft time: 63,118 hours, 48,619 cycles
- System (JASC): [3400 · Navigation System](https://openairdocs.org/jasc/3400)
- Part: Symbol Generator
- Part number: 6229436101
- Part serial: 111873
- Condition: Failed
- Location: Nr 1
- Stage of operation: CL
- How discovered: O
- Nature of condition: S
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/TSAA2026042400002

## Discrepancy

CAPTAINS SIDE EFIS DISPLAYS WENT BLANK. NR 1 SG FAILED.

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