# SDR YENA2026080600655

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 3, 2026
- Submitted: August 7, 2026
- Operation: Air carrier
- Aircraft: [N3142J](https://openairdocs.org/aircraft/N3142J), registered now
- Make and model: Airbus BD-500-1A11
- Registry model: [Airbus BD-500-1A11](https://openairdocs.org/model/airbus-canada-lp-bd-500-1a11) (OpenAirDocs)
- Aircraft serial: 55251
- Aircraft time: 7,721 hours, 3,552 cycles
- System (JASC): [2913 · Hydraulic Pump (Electric/Engine), Main](https://openairdocs.org/jasc/2913)
- Part: Pump
- Part number: 5310801
- Part serial: 531080648
- Condition: Failed
- Location: Zone 400
- Part time: 4,863 hours, 1,825 cycles
- Stage of operation: DE
- How discovered: V
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YENA2026080600655

## Discrepancy

FLT # 811, BOS-ORD(EMERGENCY DECLARED). HYD 1 LO QTY EICAS AT 36000. HYD 1 LO PRESS EICAS DESCENDING THROUGH 28000; FOR CORRECTIVE ACTION REFERENCE LP 4707576 ITEM 1 & 2 R/R OF PRIORITY HYD VALVE AND R/R OF ENG 1 EDP; FOUND MAJOR LEAK FROM LANDING GEAR PRIORITY VALVE R+R VALVE OPS CHECK GOOD IAW AMM 29-11-12.UPON INSP OF THE #1 HYDRAULIC SYS FOUND THE CASE DRAIN FILTER WITH METAL DEBRISR/R ENG #1 EDP IAW AMP 29-11-01 LEAK AND OPS CHECKS GOOD. NO DEFECTS NOTED ALS OFIF A FLUSH OF THE #1 HYDRAULIC SYS AND R/R ALL FILTES IAW AMP 29-10-00 PRESS AND QTY HOLDING NO DEFECTS NOTED AC GOOD FOR SVC

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