# SDR ASAA2018012123253

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 21, 2018
- Submitted: January 23, 2018
- Operation: Air carrier
- Aircraft: [N423AS](https://openairdocs.org/aircraft/N423AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 35206
- Aircraft time: 18,923 hours, 6,229 cycles
- System (JASC): [7397 · Engine Fuel System Wiring](https://openairdocs.org/jasc/7397)
- Part: Connector
- Part number: DP0803
- Condition: Disconnected
- Location: Fuel System
- Stage of operation: TX
- How discovered: O
- Nature of condition: N
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2018012123253

## Discrepancy

NR 1 FILTER BYPASS LIGHT ILLUMINATED ON TAXI IN, STAYED ON UNTIL SHUTDOWN. GROUNDED - YES. PERFORMED EEC BITE PER FIM 73-00 TASK 801 - FOUND FAULT CODE 73-31071 THE FUEL FILTER SIGNALS DISAGREE. FOUND CANON PLUG DISCONNECTED FROM NR 1 ENG FUEL FILTER DIFFERENTIAL PRESS SWITCH SW DP0803. RE-INSTALLED CANON PLUG, RAN NR 1 ENG ALL NORMAL INDICATIONS.

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