# SDR 2A6R2026041475304

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 14, 2026
- Submitted: April 21, 2026
- Operation: General aviation
- Filed by: [Air Methods, LLC, repair station 2A6R933B](https://openairdocs.org/faa-repair-station/2A6R933B/air-methods-llc.md) (OpenAirDocs)
- Aircraft: [N917AC](https://openairdocs.org/aircraft/N917AC), registered now
- Make and model: Urocop EC 135 P2
- Registry model: [Urocop EC 135 P2](https://openairdocs.org/model/eurocopter-deutschland-ec-135-p2) (OpenAirDocs)
- Aircraft serial: 0351
- Aircraft time: 9,472 hours, 47,358 cycles
- System (JASC): [5311 · Fuselage Main, Frame](https://openairdocs.org/jasc/5311)
- Part: Frame
- Part number: L533M1022215
- Condition: Cracked
- Location: Zone 200
- Part time: 9,472 hours, 47,358 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/2A6R2026041475304

## Discrepancy

CRACKING DAMAGE WAS DISCOVERED ON THE TAIL CONE UPPER FRAME 7  IN THE RADIUS ADJACENT TO THE SKIN FLANGE ON THE R/H SIDE. THE APPROXIMATE LENGTH OF THE CRACK WAS MEASURED AT 0.20”. THE CRACK WAS STOP DRILLED AND AN L-SHAPED REPAIR DOUBLER OF 0.050” ALUMINUM WAS FABRICATED AND INSTALLED, AND THE SPACE BETWEEN DOUBLER FLANGE AND UPPER FRAME 7 FLANGES WERE SHIMMED USING 2024-T3 TO ACCOMMODATE FOR THE EXISTING JOGGLE. A DETAILED DESCRIPTION OF THE DAMAGE AND APPROVED REPAIR PROCEDURES IS PROVIDED IN AIR METHODS ENGINEERING AUTHORIZATION 23-5300-EA-5580 REV. – DATED 25 MAR 2026 AND IS SUBSTANTIATED BY FAA FORM 8110-3

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