# SDR QXEA200701648

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 3, 2007
- Submitted: November 5, 2007
- Operation: Air carrier
- Aircraft: [N367PH](https://openairdocs.org/aircraft/N367PH), registered now
- Make and model: Dhav DHC8202
- Aircraft serial: 511
- Aircraft time: 20,315 hours, 29,357 cycles
- System (JASC): [7500 · Engine Bleed Air System](https://openairdocs.org/jasc/7500)
- Part: Pressure Switch
- Condition: Malfunctioned
- Location: Nr 1 Bleed
- Stage of operation: TX
- How discovered: O
- Nature of condition: J
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QXEA200701648

## Discrepancy

SEA FLIGHT NR 2104, AFTER ENGINE START NOTICED LOW FLOW OUT OF NR 1 BLEED, ISOLATED BOOT SYSTEM AND NOTED NR 1 DEICE PRESSURE AT 10 PSI WHILE NR 2 WAS 18 PSI WITH ENGINES OUT OF FEATHER AND POWER LEVERS JUST ABOVE DISC.  MAINTENANCE REPLACED NR 1 AND NR 2 55 AND 65 HIGH PRESSURE SWITCHES.  REPLACED 2121-K6 RELAY, DURING TROUBLESHOOTING WIRING.  OPERATIONAL CHECK GOOD.  AIRCRAFT RETURNED TO SERVICE.

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