# SDR ASMF201507007

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 6, 2015
- Submitted: July 23, 2015
- Operation: Air carrier
- Aircraft: [N423AM](https://openairdocs.org/aircraft/N423AM), registered now
- Make and model: Boeing 737-73V
- Registry model: [Boeing 737-73V](https://openairdocs.org/model/boeing-737-73v) (OpenAirDocs)
- Aircraft serial: 32423
- Aircraft time: 38,004 hours, 23,192 cycles
- Engine: Cfmint CFM567B22
- System (JASC): [7421 · Spark Plug/Igniter](https://openairdocs.org/jasc/7421)
- Part: Igniter Box
- Part number: 106310453
- Part serial: JEH170
- Condition: Failed
- Location: Left Engine
- Part time: 33,369 hours, 12,000 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASMF201507007

## Discrepancy

CAPTAIN REPORTED THAT DURING START ENGINES, THE LT ENGINE IGNITION FAILED WITHOUT EGT.  DURING TRANSIT CHECK THE LT ENGINE IGNITION BOX WAS REPLACED IAW AMM 74-21-02, TESTED CORRECT & THE REPORT WAS CLOSED.

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