# SDR CALA2014123192878

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 19, 2014
- Submitted: December 31, 2014
- Operation: Air carrier
- Aircraft: [N468UA](https://openairdocs.org/aircraft/N468UA), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 1363
- Aircraft time: 48,659 hours, 19,128 cycles
- Engine: Iae V2527A5
- System (JASC): [2897 · Fuel System Wiring](https://openairdocs.org/jasc/2897)
- Part: Wire
- Condition: Burned
- Location: Fuel System
- Stage of operation: CL
- 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/CALA2014123192878

## Discrepancy

RIGHT FUEL TANK 1 PUMP INOPERATIVE.  LOW PRESS IN CLIMB WITH 2.6 IN RT WING TANK.  FOUND PUMP TRIPPING THE CB, REPLACED NR 1 RT FUEL PUMP IAW AMM 28-21-51, NO HELP.  PUMP DOES NOT OPERATE WITH SWITCH ON.  REPLACED 18QA CONNECTOR, 54QA CONNECTOR & CB 2QA. NO HELP.  TROUBLESHOOTING FOUND OPENS IN WIRING BETWEEN 18QA PINS 1 & 5 TO 22QA C & B.  SUSPECT OPEN IN WIRING BAD IN CHANNEL FROM PUMP CONNECTOR.  FOUND WIRES BURNED AT 90 DEGREE BEND WHERE HARNESS ENTERS WIRE HOUSING AT WING SKIN IAW COA 404500 FIG 2 SHEET 2. REPLACED FUEL 106589 PUMP HARNESS BETWEEN 22QA CONNECTOR & JUNCTION BOX 4070VN & SPLICED IAW COA 404500 STEP 4 B 2 >I.  FUEL PUMP OPERATIONS CHECKED OK.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.