# SDR UALA2010113004405

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 29, 2010
- Submitted: December 17, 2010
- Operation: Air carrier
- Aircraft: [N778UA](https://openairdocs.org/aircraft/N778UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26940
- Aircraft time: 58,871 hours, 10,626 cycles
- Engine: Pwa PW4077
- System (JASC): [2842 · Fuel Quantity Sensor](https://openairdocs.org/jasc/2842)
- Part: Pressure Switch
- Part number: 21C1627
- Condition: Malfunctioned
- Location: Fuel Cell
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2010113004405

## Discrepancy

CHRONIC LT CTR TANK FUEL PUMP FAULT RELATED TO MESSAGE.  REPLACED CONNECTOR D2189P, WIRE W8189-2001R-20, WIRE W8189-2001B-20, AND CONNECTOR DS28110.   INSTALLED NEW PRESSURE SWITCH INW IPC 28-42-01-002 ITEM 22 ACP TEST OF LT CTR FUEL PUMP PRESSURE SWITCH S28110 PER MM.

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