# SDR 8HBR20220328043

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 27, 2022
- Submitted: March 28, 2022
- Operation: General aviation
- Filed by: [Hillsboro Aero Academy LLC, repair station 8HBR698C](https://openairdocs.org/faa-repair-station/8HBR698C/hillsboro-aero-academy-llc.md) (OpenAirDocs)
- Aircraft: [N130JA](https://openairdocs.org/aircraft/N130JA), registered now
- Make and model: Cessna 172S
- Registry model: [Cessna 172S](https://openairdocs.org/model/cessna-172s) (OpenAirDocs)
- Aircraft serial: 172S9165
- Aircraft time: 10,661 hours
- Engine: Lyc IO360L2A
- Engine time: 327 hours
- System (JASC): [7400 · Ignition System](https://openairdocs.org/jasc/7400)
- Part: Eiu
- Part number: 66K4F3SN
- Part serial: 4F3221043
- Condition: Faulty
- Part time: 5 hours
- Stage of operation: TX
- How discovered: C
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/8HBR20220328043

## Discrepancy

PILOT REPORTED ROUGH LH MAG DURING RUN UP. IT WAS FOUND THAT THE ELECTRONIC IGNITION UNIT WAS THE CAUSE OF THE ROUGHNESS.

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