# SDR MASA2026102400050

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 24, 2026
- Submitted: October 25, 2026
- Operation: Air carrier
- Aircraft: [N88331](https://openairdocs.org/aircraft/N88331), registered now
- Make and model: Emb ERJ 170-200 LL
- Registry model: [EMB ERJ 170-200 LL](https://openairdocs.org/model/embraer-s-a-erj-170-200-ll) (OpenAirDocs)
- Aircraft serial: 17000530
- Aircraft time: 23,437 hours, 14,412 cycles
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Gcu
- Part number: 1701321E
- Part serial: 4086
- Condition: Faulted
- Location: Zone 100
- Stage of operation: TX
- How discovered: O
- Nature of condition: B
- Precautionary procedure: F
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/MASA2026102400050

## Discrepancy

SMOKE IN CABIN,  3 SLIDES BLOWN & APU FIRE BOTTLE DISCHARGED. NO FIRE INDICATED.  FOUND TO BE CAUSED BY GCU 2.  REMOVED AND REPLACED GCU 2, SLIDES AND APU FIRE BOTTLE

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