# SDR HDNA2021062110006

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 13, 2021
- Submitted: July 13, 2021
- Operation: Air carrier
- Aircraft: [N911XF](https://openairdocs.org/aircraft/N911XF), registered now
- Make and model: Urocop EC135P1
- Registry model: [Urocop EC135P1](https://openairdocs.org/model/eurocopter-deutschland-ec135p1) (OpenAirDocs)
- Aircraft serial: 0167
- Aircraft time: 7,573 hours, 25,185 cycles
- System (JASC): [5311 · Fuselage Main, Frame](https://openairdocs.org/jasc/5311)
- Part: Frame
- Condition: Cracked
- Location: Frm 5
- 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/HDNA2021062110006

## Discrepancy

CRACK DISCOVERED IN FRAME 5 DURING HEAVY MAINTENANCE EVENT. COMPLIED WITH SB EC 135-53-032 MAIN FUSELAGE STRUCTURE IMPROVED REINFORCEMENT OF FRAME 5- PART 2 AND SB EC135-53-028 REINFORCEMENT OF FRAME 5

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.