# SDR AALA201802279030

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 21, 2018
- Submitted: February 28, 2018
- 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
- Aircraft time: 57,552 hours, 21,476 cycles
- System (JASC): [2824 · Fuel Transfer Valve](https://openairdocs.org/jasc/2824)
- Part: Actuator
- Part number: D2827107500800
- Part serial: 1102
- Condition: Faulty
- Location: Fuel System
- Part time: 57,355 hours, 21,353 cycles
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201802279030

## Discrepancy

AIRCRAFT WAS NOT GROUNDED. FOUND ACT 1 VERY SLOW TO TRANSFER. SUSPECT PRESSURE ISSUE. NEED TO VERIFY THAT TANK 1 ISN'T VENTING OUT OF WING NACA DUCT. REPLACED ACT ASSEMBLY TANK PER 28-28-00-710-001-A & 004-A. NORMAL TRANSFER RATES RESTORED.

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