# SDR RMXA2007002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 4, 2007
- Submitted: October 4, 2007
- Operation: Air carrier
- Aircraft: [N117MK](https://openairdocs.org/aircraft/N117MK), registered now
- Make and model: Bolkms BK117B2
- Aircraft serial: 7196
- Aircraft time: 8,535 hours
- Engine: Lyc LTS101750B1
- System (JASC): [5311 · Fuselage Main, Frame](https://openairdocs.org/jasc/5311)
- Part: Frame
- Part number: FRAME2L
- Condition: Cracked
- Location: Tailcone
- Part time: 8,535 hours
- 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/RMXA2007002

## Discrepancy

DURING SCHEDULED INSPECTION A 18MM LONG CRACK WAS DISCOVERED ON THE LT 'A' FUSELAGE FRAME 2L.  THE CRACK IS ON THE LOWER SKIN ONLY OF A DOUBLE SKIN ASSEMBLY.  THE CRACK ORIGINATES FROM A BOLT HOLE, EXTENDS 9MM IN EACH DIRECTION FROM THE BOLT HOLE. THE BOLT IS USED FOR THE LOWER FORWARD ATTACHING SUPPORT FOR THE ECU (ENVIRONMENTAL CONTROL UNIT)

---
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.