# SDR UALA2010030900814

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 9, 2010
- Submitted: March 10, 2010
- Operation: Air carrier
- Aircraft: [N439UA](https://openairdocs.org/aircraft/N439UA), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 683
- Aircraft time: 43,596 hours, 16,714 cycles
- Engine: Iae V2527A5
- Engine time: 54,831 hours, 20,147 cycles
- System (JASC): [7497 · Ignition System Wiring](https://openairdocs.org/jasc/7497)
- Part: Wire
- Condition: Chafed
- Location: Ignition Sys
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2010030900814

## Discrepancy

DURING TROUBLESHOOTING OF ENG 1 AND 2 IGN SYS A CB A3 POPPED FOUND WIRES 5A421B16 AND 5A421W16 CHAFED AND ARCING AGAINST BRACKET ABOVE OIL TANK QUANTITY TRANSMITTER. REFER TO WDM71-51-04 P003 FIG 1.   SPLICED IN NEW SECTION OF CABLE FROM BELOW FUEL-OIL COOLER FUEL OUT TUBE TO CONNECTOR 4100 KSD OF RELAY BOX NR 1 ENG. REPAIR ACCOMPLISHED PER AMM70-71-23 AND AMM70-71-24.  ACCOMPLISED IGNITION SYS TEST PER AMM74-00-00 AND WDM71-51-04. NO FAULTS.

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