# SDR ASAA12510906

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 5, 2012
- Submitted: January 9, 2012
- Operation: Air carrier
- Aircraft: [N506AS](https://openairdocs.org/aircraft/N506AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35690
- Aircraft time: 13,415 hours, 4,353 cycles
- Engine: Cfmint CFM567B273
- System (JASC): [7421 · Spark Plug/Igniter](https://openairdocs.org/jasc/7421)
- Part: Igniter
- Part number: 90440351
- Condition: Inoperative
- Location: Nr 1 Engine
- 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/ASAA12510906

## Discrepancy

NR 1 ENG LEFT IGNITION DOES NOT WORK.  ACCOMPLISHED FIM TASK 74 21 00 810 806 F00 EEC BITE CHECK SHOWED NO FAULTS LOGGED.  DURING FURTHER T/S FOUND NO AUDIBLE CONFIRMATION OF IGNITOR PLUGS IGNITING.  REPLACED NR 1 ENGINE IGNITOR PLUGS REF T/C 78474000 SYSTEM OPS CHECKS NORMAL. GROUND VERIFICATION CHECKS NORMAL.

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