# SDR 2023FA0000063

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 3, 2023
- Submitted: February 3, 2023
- Operation: General aviation
- Aircraft: [N488TK](https://openairdocs.org/aircraft/N488TK), registered now
- Make and model: Honda HA-420
- Registry model: [Honda HA-420](https://openairdocs.org/model/honda-ha-420) (OpenAirDocs)
- Aircraft serial: 42000221
- Aircraft time: 135 hours, 100 cycles
- System (JASC): [2700 · Flight Control System](https://openairdocs.org/jasc/2700)
- Part: Flap
- Part number: HJ115753280004
- Part serial: LMI00151
- Condition: Cracked
- Location: Zone 600
- Part time: 135 hours, 100 cycles
- Stage of operation: UK
- How discovered: V
- Nature of condition: Z
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2023FA0000063

## Discrepancy

DURING ROUTINE MX, NOTED THE RIGHT FLAP TRAILING EDGE UNDER THE ENGINE PYLON TO BE CRACKED AND SEPARATED ALONG THE  TRAILING EDGE BEND RADIUS FOR APPROX 9" WITH 2 PROPAGATING CRACKS RUNNING FORWARD INTO THE AIRSTREAM.

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