# SDR FXTA20260628002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 28, 2026
- Submitted: August 20, 2026
- Operation: Air carrier
- Aircraft: [N409BA](https://openairdocs.org/aircraft/N409BA), registered now
- Make and model: Textrn 408
- Aircraft serial: 4080018
- Aircraft time: 1,249 hours, 1,963 cycles
- System (JASC): [2752 · Trailing Edge Flap Actuator](https://openairdocs.org/jasc/2752)
- Part: Flex Drive
- Part number: 991434478
- Condition: Failed
- Location: Zone 600
- Part time: 1,249 hours, 1,963 cycles
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FXTA20260628002

## Discrepancy

RT OUTBOARD FLAP FLEX SHAFT RUBBER CASE FAILING AT THE CRIMP UNDER STAINLESS STEEL OUTER WRAP. THIS SEPARATION ALLOWS THE OUTER CASE TO LENGTHEN AND THE INNER DRIVE SHAFT CAN SLIDE LEFT AND RIGHT TO THE POINT THE DRIVE COMES OUT OF THE JACKSCREW CAUSING THE FLAP TO TWIST.

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