# SDR DALA2026052603147

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 25, 2026
- Submitted: May 26, 2026
- Operation: Air carrier
- Aircraft: [N423DX](https://openairdocs.org/aircraft/N423DX), registered now
- Make and model: Airbus A330-941
- Registry model: [Airbus A330-941](https://openairdocs.org/model/airbus-a330-941) (OpenAirDocs)
- Aircraft serial: 2032
- Aircraft time: 14,017 hours, 1,617 cycles
- System (JASC): [3240 · Landing Gear Brake System](https://openairdocs.org/jasc/3240)
- Part: Tachometer
- Condition: Faulted
- Location: Zone 700 Wheel
- Stage of operation: TO
- How discovered: O
- Nature of condition: N
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2026052603147

## Discrepancy

ATO - AT 30KTS DUE TO BRAKES RELEASED ECAM MSG.   REPLACE NR 4 MLG WHEEL TACHOMETER. OK FOR SERVICE. (8798208) AIRCRAFT WAS GROUNDED.

---
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.