# SDR ASAA2023032542605

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 25, 2023
- Submitted: March 28, 2023
- Operation: Air carrier
- Aircraft: [N936AK](https://openairdocs.org/aircraft/N936AK), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 43379
- Aircraft time: 2,980 hours, 906 cycles
- System (JASC): [7410 · Ignition Power Supply](https://openairdocs.org/jasc/7410)
- Part: Exciter
- Part number: 2569M32P02
- Part serial: UNLPA531
- Condition: Failed
- Location: #2 Engine
- Part time: 3,004 hours, 911 cycles
- Stage of operation: TX
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023032542605

## Discrepancy

#2 ENGINE NEGATIVE IGNITION ON TWO STARTS WITH LEFT IGNITER SELECTED. GROUNDED - YES. LEFT IGNITOR PLUG REPLACED REF B737-9 AMM 74-21-02. LEFT IGNITION EXCITER REPLACED, REF AMM 74-11-01. PERFORMED TEST OF IGNITOR SYSTEM - SAME PASS-REF AMM 71-00-00. ENG RUN OF #2 ENG COMPLETED SUCCESSFULLY REF AMM 71-00-01B.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.