# SDR YENA2022021800081

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 17, 2022
- Submitted: February 18, 2022
- Operation: Air carrier
- Aircraft: [N929JB](https://openairdocs.org/aircraft/N929JB), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 06031
- Aircraft time: 31,257 hours, 6,044 cycles
- System (JASC): [2700 · Flight Control System](https://openairdocs.org/jasc/2700)
- Part: None
- Condition: None
- Stage of operation: CR
- How discovered: V
- Nature of condition: S
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YENA2022021800081

## Discrepancy

FLT # 1573, EWR-LAX. IN CRUISE FLIGHT FL340 .78M, MOUNTAIN WAVE +25KTS AIRSPEED INCREASE CAUSED EXCEEDANCE OF VMO BY APPROX 10 KTS FOR APPROX 10 SECONDS. SPEED BRAKES WERE DEPLOYED AND SPEED SLOWED BACK TO NORMAL.; PERFORMED CHAPTER FIVE INSPECTION PER AMM 05-51-17 FOUND EXCEEDANCE OVER 10 KTS PER PILOT REPORT. IN LIMITS PER AMM FIGURE 05-51-1-991-00800-00-A NO FURTHER INSPECTION REQUIRED.

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