# SDR QXEA200400487

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 22, 2004
- Submitted: July 2, 2004
- Operation: Air carrier
- Aircraft: N412QX
- Make and model: Bombdr DHC8401
- Aircraft serial: 4059
- Aircraft time: 5,653 hours, 6,226 cycles
- System (JASC): [3620 · Pneumatic Indicating System](https://openairdocs.org/jasc/3620)
- Part: Warning Light
- Condition: Illuminated
- Location: Zone 100
- Stage of operation: DE
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QXEA200400487

## Discrepancy

SEA FLIGHT 2381, DESCENDING OUT OT 10,000 FT WHEN POWER WAS REDUCED TO APPROXIMATLEY 10 PERCENT TORQUE, NR 1 BLEED HOT CAUTION LIGHT CAME ON.  AFTER FOLLOWING CHECKLIST, CAUTION LIGHT WENT OUT.  MAINTENANCE INTERROGATED CDS.  NO FAULTS FOUND.  GROUND RAN NR 1 BLEED SYSTEM FULL HOT THEN FULL COLD, NO CAUTION LIGHT.  PERFORMED OPS TEST OF ECS TEMPERATURE CONTROL SYSTEM, TEST GOOD.  AIRCRAFT RETURNED TO SERVICE.

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