# SDR UIEA2019050304111

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 3, 2019
- Submitted: May 3, 2019
- Operation: Air carrier
- Aircraft: [N263SG](https://openairdocs.org/aircraft/N263SG), registered now
- Make and model: Boeing 747481
- Aircraft serial: 29263
- Aircraft time: 52,356 hours, 6,412 cycles
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Sensing Element
- Part number: 356412400
- Condition: Faulty
- Location: Fire Warning
- Stage of operation: IN
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2019050304111

## Discrepancy

FOUND EICAS MSG "FIRE WHEEL WELL" DISPLAYED. (<P>PERFORMED WIRING CHECK IAW FIM 26-17 TASK 807 REV.95 AND FOUND SENSING ELEMENT M691A, M692A, M692B, M691B, M694A, M694B RESISTANCE LOW. REPLACED SENSING ELEMENT IAW AMM 26-17-02-004-001,  26-17-02-404-012 REV. 95 AND WDM 26-17-11 REV.44. PERFORMED OPERATIONAL TEST IAW AMM 26-17-00-705-001 REV. 93 AND THE RESULT WAS SATISFACTORY. </P>)

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