# SDR SIMA20261004003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 4, 2026
- Submitted: October 5, 2026
- Operation: Air carrier
- Aircraft: [N749BM](https://openairdocs.org/aircraft/N749BM), registered now
- Make and model: Emb ERJ 170-100 SE
- Registry model: [EMB ERJ 170-100 SE](https://openairdocs.org/model/embraer-erj-170-100-se) (OpenAirDocs)
- Aircraft serial: 17000133
- Aircraft time: 42,336 hours, 31,863 cycles
- System (JASC): [3260 · Landing Gear Position and Warning](https://openairdocs.org/jasc/3260)
- Part: Sensor
- Condition: Failed
- Location: Wow
- 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/SIMA20261004003

## Discrepancy

LG WOW SYS FAULT/ RAN QRH/ DIVERTED TO MAF/ MTX INSP. EMERGENCY DECLARED. FOUND LG WOW SYS FAIL RELATED TO ASCB BUS FAULT. FOUND LOOSE ASCB BUS TERMINATOR CAP. RE-INSTALLED IAW ERJ 170 AMM 31-42-01 OPC GOOD MSG NO LONGER DISPLAYED

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