# SDR F3LA202509150291

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 11, 2025
- Submitted: September 15, 2025
- Operation: Air carrier
- Aircraft: [N615FR](https://openairdocs.org/aircraft/N615FR), registered now
- Make and model: Airbus A321-271NX
- Registry model: [Airbus A321-271NX](https://openairdocs.org/model/airbus-s-a-s-a321-271nx) (OpenAirDocs)
- Aircraft serial: 11280
- Aircraft time: 6,862 hours, 3,089 cycles
- System (JASC): [2133 · Pressure Regulator/Outflow Valve](https://openairdocs.org/jasc/2133)
- Part: Outflow Valve
- Part number: VFT210B00
- Part serial: 042709753
- Condition: Failed
- Location: Zone 100
- 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/F3LA202509150291

## Discrepancy

DURING CLIMB DELTA P RISING WAS NOTED, BUT CABIN ALT WAS NOT RISING WHEN LEVELED AFTER TROUBLESHOOTING CABIN ALT DECREASED DELTA P INCREASED.   PERFORMED CABIN PRESSURE TEST IN REFERENCE TO AMM 05-53-00-780-003-A AFTER REPLACEMENT OF SKIN AIR INLET VALVE REF LP501359 ITEM #3 TEST RESULTS GOOD, AC OK FOR SERVICE AT THIS TIME.

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