# SDR 2023FA0000505

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 1, 2023
- Submitted: September 1, 2023
- Operation: General aviation
- Aircraft: [N842MB](https://openairdocs.org/aircraft/N842MB), registered now
- Make and model: Lear 45LEAR
- Aircraft serial: 179
- Aircraft time: 7,783 hours, 5,773 cycles
- System (JASC): [2435 · Starter-Generator](https://openairdocs.org/jasc/2435)
- Part: Starter Gen
- Part number: 23280067
- Part serial: Y40604
- Condition: Failed
- Location: Zone 400
- Stage of operation: CR
- How discovered: V
- Nature of condition: H, F, G
- Precautionary procedure: A, B, O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2023FA0000505

## Discrepancy

RIGHT ENGINE STARTER/GENERATOR FAILED IN FLIGHT WITH NO INDICATION OF FAILURE. RESULTS OF THE INDICATION FAILURE RESULTED IN MAIN BATTERIES AND EMERGENCY BATTERY DISCHARGE, COUPLED WITH FAILURE TO PROPERLY LOAD SHED. THESE SEVERAL INSTANCES RESULTED IN LOSS OF INDICATIONS IN THE COCKPIT. CREW TOOK EMERGENCY MEASURES TO SAFELY LAND THE AIRCRAFT.

---
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.