# SDR ASAA2016122119117

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 21, 2016
- Submitted: December 23, 2016
- Operation: Air carrier
- Aircraft: [N471AS](https://openairdocs.org/aircraft/N471AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41703
- Aircraft time: 8,824 hours, 2,910 cycles
- Engine: Cfmint CFM567B27E
- System (JASC): [7421 · Spark Plug/Igniter](https://openairdocs.org/jasc/7421)
- Part: Igniter
- Part number: 90722151
- Condition: Failed
- Location: Nr 2 Engine
- Stage of operation: TX
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2016122119117

## Discrepancy

NR 2 ENGINE WOULD NOT START WITH IGNITION SWITCH IN LEFT, BUT DID START WITH IGNITION SWITCH IN RIGHT.  ACFT GROUNDED.  PERFORMED EEC BITE TEST, NO FAULTS FOUND IAW FIM 74-21 TASK 806. INSPECTED NR 2 ENG LT IGNITION LEAD, NO DEFECTS NOTED IAW AMM 74-21-01 REMOVED & INSPECTED THE LT IGNITOR, FOUND TO BE WORN AND ARCED, REPLACED THE LT IGNITOR, PERFORMED AUDIBLE GROUND TEST,  OPS NORMAL IAW AMM 74-21-02.

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