# SDR 2001UALA02004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 9, 2001
- Submitted: September 19, 2001
- Operation: Air carrier
- Aircraft: [N478UA](https://openairdocs.org/aircraft/N478UA), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 1533
- Aircraft time: 189 hours, 73 cycles
- Engine: Iae V2527A5
- System (JASC): [2810 · Fuel Storage](https://openairdocs.org/jasc/2810)
- Part: Relief Valve
- Part number: L95F50603
- Condition: Broken
- Location: Center Tank
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2001UALA02004

## Discrepancy

FUEL AUTO FEED FAULT ECAM MESSAGE.  FUEL IMBALANCE BETWEEN LEFT AND RIGHT WING TANKS OF 1500 POUNDS. FOUND FUEL TANK PROTECTOR-OVERPRESSURE DISC BROKEN BETWEEN THE LEFT WING AND CENTER FUEL TANKS.  THIS ALLOWED FUEL TO MIGRATE FROM THE LEFT WING TANK INTO THE CENTER TANK.  REPLACED DISC.

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