# SDR SA07048

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 12, 2007
- Submitted: July 18, 2007
- Operation: Air carrier
- Aircraft: [N172US](https://openairdocs.org/aircraft/N172US), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 1472
- Engine: Ge CFM56*
- System (JASC): [7320 · Fuel Controlling System](https://openairdocs.org/jasc/7320)
- Part: Sense Line
- Part number: 3380599510
- Condition: Cracked
- Location: Zone 400
- Stage of operation: CL
- How discovered: O
- Nature of condition: R, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SA07048

## Discrepancy

FLIGHT 1522, SFO-CLT:  AFTER TAKEOFF, POWER ON NUMBER 1 ENGINE ROLLED BACK.  NO SHUTDOWN OCCURRED.  FLIGHT RETURNED TO SFO.  MAINTENANCE REPLACED THE NUMBER ONE ENGINE HMU AND FUEL PUMP - NO HELP.  FOUND THE NUMBER ONE ENGINE PS3 SENSE LINE DAMAGED.  REPLACED THE PS3 LINE TO THE NUMBER ONE ENGINE.

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