# SDR HNAA200911200393

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 7, 2009
- Submitted: January 20, 2009
- Operation: Air carrier
- Aircraft: N982HA
- Make and model: Dhav DHC8102
- Aircraft serial: 380
- Aircraft time: 37,218 hours, 40,614 cycles
- Engine: Pwa PW120A
- System (JASC): [7320 · Fuel Controlling System](https://openairdocs.org/jasc/7320)
- Part: Bypass Switch
- Part number: 5905588
- Condition: Failed
- Location: Nr 1 Fuel System
- Part time: 37,218 hours, 40,614 cycles
- Stage of operation: TO
- How discovered: O
- Nature of condition: J
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HNAA200911200393

## Discrepancy

NR 1 FUEL FILTER BYPASS CAUTION LIGHT ILLUMINATED WHEN SETTING TAKE OFF POWER THEN EXTINGUISHED WHEN POWER REDUCED TO FLIGHT IDLE.  R&R NR 1 HIGH PRESSURE FILTER AND BYPASS SWITCH.  INSPECTED OLD FILTER NO DEBRIS FOUND. GROUND RUN ACFT OPS CHECK GOOD.  LOW PRESSURE FUEL FILTER INDICATION NOT FLAGGED. IAW 72-00-00

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