# SDR DHL2004780003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 28, 2004
- Submitted: March 1, 2004
- Operation: Air carrier
- Aircraft: N780DH
- Make and model: Boeing 727223
- Aircraft serial: 22006
- System (JASC): [7331 · Fuel Flow Indicating](https://openairdocs.org/jasc/7331)
- Part: Power Supply
- Condition: Failed
- Location: Fuel Flow
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DHL2004780003

## Discrepancy

ALL THREE FUEL FLOW GAUGES WENT TO -0- CLIMBING THROUGH FL330, 28V DC AND 115 VAC FUEL FLOW CIRCUIT BREAKERS ARE POPPED.  REPLACED FUEL FLOW POWER SUPPLY PER B-727 M/M 73-31-12.  INDICATION NORMAL ON GROUND RUN-UP IAW JRH 5.2, AND GMM 20.4.

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