# SDR IPXA2019123050491

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 30, 2019
- Submitted: January 2, 2020
- Operation: Air carrier
- Aircraft: [N456UP](https://openairdocs.org/aircraft/N456UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 25477
- Aircraft time: 30,580 hours, 18,470 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Module
- Part number: 7321124001
- Part serial: 451746
- Condition: Malfunctioned
- Location: Cockpit
- Stage of operation: TO
- How discovered: O
- Nature of condition: B
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IPXA2019123050491

## Discrepancy

INSPECTION TYPE:N/AREJECTED TAKEOFF APROX 110KTS (PLUS/MINUS) DUE TO SMOKE IN COCKPIT. THICK BLOCK SMOKE CAME FROM FO SIDE OF COCKPIT FIRST THEN FROM CAPT. SIDE. THEN SMOKE CAME FROM BELOW INSTRUMENT PANEL/FOOT WELL AREAS ON BOTH SIDES. AFTER CLEARING RUNNWAY.REMOVED AND REPLACED HYD RSVR PRESS MODULE AND C HYD RSVR DEPRESSURIZATION VLV AMM 29-11-16, 29-11-25. RAN ENGS AT HIGH POWER SETTINGS FOR A LONG PERIOD OF TIME APU AND BOTH PACKS. NO SMOKE IN COCKPIT GENERAL VISUAL WHEELS AND BRAKES OK, OK FOR SERVICE. ESR: 29-11-16-05-100, 29-11-30-01-001

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