# SDR YENA2025032600339

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 21, 2025
- Submitted: March 26, 2025
- Operation: Air carrier
- Aircraft: [N651JB](https://openairdocs.org/aircraft/N651JB), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 02992
- Aircraft time: 68,110 hours, 24,514 cycles
- System (JASC): [2730 · Elevator Control System](https://openairdocs.org/jasc/2730)
- Part: Control Servo
- Condition: Faulted
- Stage of operation: AP
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YENA2025032600339

## Discrepancy

FLT#2466, FLL-BUF. 'DURING LEVEL FLIGHT AT FL350 A/C WOULD SHUTTER MOMENTARILY AND PITCH UP EVERY FEW MINUTES. IT DID IT WITH BOTH AUTOPILOTS 1 AND 2 AND WITH MANUAL FLYING. ALSO WAS NOTED DURING DESCENT THRU FL180; REMOVED AND REPLACED ELEVATOR SERVO CONTROL (34CE3) IAW AMM 27-34-51-400 SEE ITEM 2 (REMOVED AND REPLACED ELEVATOR SERVO CTL SERVOVALVE (34CE1) OPS CHECK GOOD REF AMM 27-34-51) FOR OPS CHECK.'

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