# SDR UALA2009091002860

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 10, 2009
- Submitted: September 11, 2009
- Operation: Air carrier
- Aircraft: [N793UA](https://openairdocs.org/aircraft/N793UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26946
- Aircraft time: 53,385 hours, 7,845 cycles
- Engine: Pwa PW40903
- System (JASC): [7421 · Spark Plug/Igniter](https://openairdocs.org/jasc/7421)
- Part: Igniter
- Part number: 50U984
- Condition: Malfunctioned
- Location: Lt Engine
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2009091002860

## Discrepancy

ENG IGNITER L1 LEFT ENGINE FAILED TO IGNITE USING IGNITER 1.  STATUS  MSG01- NOT ACTIVE ENGINE START MODE DEPENDENT; IGNITION SYSTEM NR 1 (L ENG) FAILED TO LIGHT ENGINE.  DB- ELECTRONIC ENGINE CONTROL (L ENG, CH B) MSG-7461491 INACTV ES MODE.  REPLACED NR 1 AND NR 2 IGNITER AND TESTED NORMAL.

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