# SDR P5CA2012040900024

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 7, 2012
- Submitted: April 9, 2012
- Operation: Air carrier
- Aircraft: [N450PA](https://openairdocs.org/aircraft/N450PA), registered now
- Make and model: Boeing 747-46NF
- Registry model: [Boeing 747-46NF](https://openairdocs.org/model/boeing-747-46nf) (OpenAirDocs)
- Aircraft serial: 30808
- Aircraft time: 49,955 hours, 8,184 cycles
- System (JASC): [2913 · Hydraulic Pump (Electric/Engine), Main](https://openairdocs.org/jasc/2913)
- Part: Pump
- Part number: 6506606
- Part serial: 2420787
- Condition: Overheated
- Location: Hyd System
- Stage of operation: CR
- How discovered: O
- Nature of condition: M, K, J
- Precautionary procedure: H, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/P5CA2012040900024

## Discrepancy

NR 1 HYDRAULIC SYSTEM OVERHEAT USING EDP, ADP TURNED ON, ALL FLUID EVENTUALLY LOST FROM NR 1.  FOUND EDP TO BE OVERHEATED, INOPERATIVE AND LEAKING.  REPLACED EDP AND CORRELATED FILTERS.

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