# SDR M7K2008F00124

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 14, 2008
- Submitted: August 5, 2008
- Operation: Air carrier
- Aircraft: [N824MH](https://openairdocs.org/aircraft/N824MH), registered now
- Make and model: Urocop EC 130 B4
- Registry model: [Urocop EC 130 B4](https://openairdocs.org/model/eurocopter-ec-130-b4) (OpenAirDocs)
- Aircraft serial: 4173
- Engine: Tmeca ARRIEL2B1
- System (JASC): [7412 · Exciter](https://openairdocs.org/jasc/7412)
- Part: Exciter
- Part serial: 2506
- Condition: Failed
- Location: Ignition Sys
- Part time: 752 hours
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/M7K2008F00124

## Discrepancy

DURING ATTEMPTED START IGNITERS FAILED TO ACTIVATE.  INVESTIGATION REVEALED CIRCUIT BREAKER HAD POPPED.  RESETTING THE BREAKER FOR A GROUND TEST REVEALED AN UNEVEN IGNITER RHYTHM NO NORMALLY FOUND WITH THIS IGNITION SYSTEM, IGNITER BOX WAS CHANGED AS A PRECAUTION.  THIS PART HAS BEEN DEEMED NON REPAIRABLE BY THE ENGINE MFG, AS NO SECOND BOX IS EMBODIED REPLACEMENT OF ANY SUSPECT BOX IS PRUDENT.  (K)

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