# SDR ASAA2019053029541

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 30, 2019
- Submitted: June 3, 2019
- Operation: Air carrier
- Aircraft: [N560AS](https://openairdocs.org/aircraft/N560AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35179
- Aircraft time: 48,852 hours, 14,636 cycles
- Engine: Cfmint CFM567B27
- System (JASC): [7412 · Exciter](https://openairdocs.org/jasc/7412)
- Part: Exciter
- Part number: 106310452
- Part serial: UNJJ7050
- Condition: Failed
- Location: Nr 1 Engine
- Part time: 55,283 hours, 20,208 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/ASAA2019053029541

## Discrepancy

DURING #1 ENG START, AFTER START LEVER TO IDLE, NO LIGHT OFF NO INCREASE IN EGT, ABORTED START. GROUNDED - YES. REMOVED AND REPLACED #1 ENGINE L/H EXCITER BOX REF B737-800 AMM 74-11-01. PERFORMED SNAP CHECK, SNAP CHECK SUCCESSFUL REF AMM 74-00-00. ATTEMPTED TO START ENG #1 ON L IGNITION, ENGINE START NOT SUCCESSFUL. REMOVED AND REPLACED #1 ENGINE L/H IGNITION LEAD REF AMM 74-21-01. PERFORMED SNAP CHECK, SNAP CHECK SUCCESSFUL. ATTEMPTED TO START ENG #1 ON L IGNITION, ENGINE #1 START SUCCESSFUL.

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