# SDR N8TA01042305

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 17, 2001
- Submitted: May 23, 2001
- Operation: Air carrier
- Aircraft: [N542NA](https://openairdocs.org/aircraft/N542NA), registered now
- Make and model: Boeing 757*
- Aircraft serial: 26245
- System (JASC): [5520 · Elevator Structure](https://openairdocs.org/jasc/5520)
- Part: Bearing
- Condition: Worn
- Location: Elevator
- Stage of operation: CR
- How discovered: O
- Nature of condition: E
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/N8TA01042305

## Discrepancy

LEVEL AT FL 350 AT MACH .80, EXPERIENCED WHAT APPEARED TO BE ELEVATOR FLUTTER FOR APPROX 1 MINUTE.  DESCENDED TO FL 310, REDUCED TO MACH .78.  SITUATION DID NOT RECUR.  PERFORMED ELEVATOR FREE PLAY CHECK;  NO DEFECTS FOUND.  AS A PRECAUTION REPLACED IDLER LINK BEARINGS AND REACTION LINK BEARINGS ON ALL 3 LEFT AND RIGHT ELEVATOR PCA.  OPERATIONALLY TESTED AND ACCOMPLISHED FLIGHT TEST WITH NO DISCREPANCIES.

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