# SDR AALA202608313775

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 26, 2026
- Submitted: September 1, 2026
- Operation: Air carrier
- Aircraft: [N110AN](https://openairdocs.org/aircraft/N110AN), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 5975
- Aircraft time: 44,376 hours, 8,914 cycles
- Engine: Iae V2533A5
- System (JASC): [7732 · Engine Vibration Analyzer](https://openairdocs.org/jasc/7732)
- Part: Transducer
- Part number: 144171000032
- Condition: Fault Message
- Location: Zone 400
- Stage of operation: DE
- How discovered: O
- Nature of condition: E, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202608313775

## Discrepancy

AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED INTO SFO DUE TO THE FLIGHT CREW REPORTING ENGINE 2 HIGH VIBRATION ECAM. ECAM CAUTION ILLUMINATED AND DISAPPEARED TWICE IN A ROW AND THEN A FEW MINUTES LATER REAPPEARED AND DISAPPEARED. N1 VIBRATION WAS SEEN FROM 0.1 TO 5.7, MOVING QUICKLY UP AND DOWN. N2 WAS SEEN UP TO 2.8. THERE WAS NO ICING AND NO NOTICEABLE AIRFRAME VIBRATION - THE FLIGHT CREW ALSO REPORTED THAT DURING DESCENT MULTIPLE ENG VIBRATION ECAMS (AT LEAST 30 CAUTIONS). HIGH N1 AND N2 VIBRATION INDICATIONS UP TO 9.9.  NOT IN ICING CONDITIONS AND NO UNUSUAL AIRCRAFT ACTUAL VIBRATIONS FELT. APPROACH AND LANDING WERE NORMAL - THE AIRCRAFT LANDED SAFELY AT SFO AND TAXIED TO THE GATE UNDER ITS OWN POWER - MAINTENANCE REPLACED THE ENGINE 2 VIBRATION TRANSDUCER *AALA202608313775* AND THE ENGINE 2 VIBRATION HARNESS *AALA202608319467* - A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED WITH NO ISSUES NOTED

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