# SDR P5CA0301008

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 20, 2003
- Submitted: January 5, 2004
- Operation: Air carrier
- Aircraft: N923FT
- Make and model: Boeing 747-2U3B
- Registry model: [Boeing 747-2U3B](https://openairdocs.org/model/boeing-747-2u3b) (OpenAirDocs)
- Aircraft serial: 22769
- Aircraft time: 65,922 hours, 18,349 cycles
- Engine: Pwa JT9D7Q
- Engine time: 50,315 hours, 13,908 cycles
- System (JASC): [7312 · Fuel Heater](https://openairdocs.org/jasc/7312)
- Part: Valve
- Part number: A26602
- Part serial: 1122088
- Condition: Failed
- Location: Nr 1 Engine
- Stage of operation: CL
- 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/P5CA0301008

## Discrepancy

NR 1 ENG FUEL HEAT FAILED IN OPEN POS WITH ICING LIGHT ON, FUEL TEMP MAX.  PER FIM 73-01-00 PG 203 FOUND ZERO VOLTAGE AT SOCKETS BAND ON FUEL HEAT VLV CONNECTOR.  REMOVED AND REPLACED FUEL HEAT VLV IAW MM 73-14-01, OPS NORMAL ON ENG RUN.

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