# SDR P5CA0401075

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 15, 2004
- Submitted: April 23, 2004
- Operation: Air carrier
- Aircraft: N505MC
- Make and model: Boeing 747-2D3B
- Registry model: [Boeing 747-2D3B](https://openairdocs.org/model/boeing-747-2d3b) (OpenAirDocs)
- Aircraft serial: 21251
- Aircraft time: 86,004 hours, 18,867 cycles
- System (JASC): [3260 · Landing Gear Position and Warning](https://openairdocs.org/jasc/3260)
- Part: Proximity Switch
- Part number: 827932
- Condition: Failed
- Location: Mlg
- Stage of operation: LD
- 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/P5CA0401075

## Discrepancy

LEFT "WING GEAR" ELECTRICAL HARNESS INSPECTION.  REPLACED LEFT WING O/B (PRIM) PROX SWITCH (TILT) AND REPLACED LEFT WING GEAR INBD (ALT) TILT SWITCH. SECURED INBD PROX SWITCH MOUNT.  CLEARANCE OK ON GEAR SWING.

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