# SDR ASOA20111212014

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 12, 2011
- Submitted: December 19, 2011
- Operation: Air carrier
- Aircraft: N19554
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145587
- Aircraft time: 22,888 hours, 17,566 cycles
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Generator
- Part number: 30086011
- Part serial: Y10431
- Condition: Faulted
- Location: Zone 400
- Part time: 20,994 hours, 11,408 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: H, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASOA20111212014

## Discrepancy

DURING CLIMB THE CREW REPORTED THAT THE NR 3 GENERATOR DROPPED OFF LINE. THE ACFT WAS OPERATING WITH THE NR1 GENERATOR ON MEL AND WITH THE NR 3 DROPPING OFF LINE ELECTED TO RETURN TO DEPARTURE WHERE THE ACFT LANDED WITHOUT INCIDENT.  MX REPLACED THE NR3 GENERATOR, PERFORMED OPS CHECKS AND CLEARED THE DISCREPANCY.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.