# SDR 2026FA0000173

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 11, 2026
- Submitted: March 11, 2026
- Operation: General aviation
- Make and model: Cessna 172R
- Registry model: [Cessna 172R](https://openairdocs.org/model/cessna-172r) (OpenAirDocs)
- Engine: Lyc IO360L2A
- System (JASC): [7414 · Magneto/Distributor](https://openairdocs.org/jasc/7414)
- Part: Coil
- Part number: K3975
- Part serial: N3975020718
- Condition: Bent
- Location: Magneto
- Part time: 488 hours
- Component: Magneto, Slick
- Component part number: 4371
- Stage of operation: IN
- How discovered: V
- Nature of condition: W
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2026FA0000173

## Discrepancy

UNDER NORMAL FLIGHT OPERATIONS, AT FIRST ROUTINE 500-HOUR INSPECTION FOUND COIL TAB WORN OUT OF LIMITS BECAUSE THE TAB WAS INCORRECTLY BEND AT FACTORY.

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