# SDR AALA201907019055

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 30, 2019
- Submitted: July 3, 2019
- Operation: Air carrier
- Aircraft: [N798AN](https://openairdocs.org/aircraft/N798AN), registered now
- Make and model: Boeing 777223
- Aircraft serial: 30797
- Aircraft time: 73,168 hours, 9,251 cycles
- System (JASC): [2820 · Aircraft Fuel Distribution System](https://openairdocs.org/jasc/2820)
- Part: Pressure Switch
- Part number: 21C167
- Part serial: A006375
- Condition: Faulty
- Location: Fuel System
- Stage of operation: IN
- How discovered: O
- Nature of condition: J
- Precautionary procedure: J, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201907019055

## Discrepancy

AIRCRAFT NOT GROUNDED: FLIGHT RETURNED TO DFW ON ACCOUNT OF LEFT FUEL PUMP FAILURE. DUMPING FUEL TO AVOID OVERWEIGHT LANDING. MAINTENANCE ACCOMPLISHED FIM TASK 28-22-00-810-831, FOUND TO BE AN INTERMITTENT FAULT IAW FIM 28-22-00-810-831. REPLACED LEFT FWD BOOST PUMP SWITCH IAW 28-42-01. *** SUPPLEMENTAL INFORMATION: ADDED DUMP FUEL TO PRECAUTIONARY PROCEDURES*** (CLOSED)

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