# SDR 2A6R2021121762704

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 17, 2021
- Submitted: December 18, 2021
- Operation: Air carrier
- Filed by: [Air Methods, LLC, repair station 2A6R933B](https://openairdocs.org/faa-repair-station/2A6R933B/air-methods-llc.md) (OpenAirDocs)
- Aircraft: [N527BF](https://openairdocs.org/aircraft/N527BF), 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: 0697
- Aircraft time: 6,188 hours, 30,158 cycles
- System (JASC): [5300 · Fuselage Structure (General)](https://openairdocs.org/jasc/5300)
- Part: None
- Condition: None
- 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/2A6R2021121762704

## Discrepancy

DURING 1000 HOUR AIRFRAME INSPECTION, FOUND SEVERAL CRACKS UNDER THE MAIN TRANSMISSION DECK.  LEFT & RIGHT LONGERONS P/N L533M1017281 & P/N L533M1017282 WERE CRACKED IN THE UPPER FLANGES AT X4565 WITH L/H CRACK MEASURING 0.50 LONG AND R/H MEASURING 0.60 LONE.  FOUND A CRACK ON THE REAR R/H STRINGER P/N L533M1017370ON ITS UPPER FLANGE MEASURING 0.50 LONG.  THE L/H & R/H A-PROFILES L/H P/N: L533M1017375 AND R/H P/N L533M1017376 ARE CRACKED ACROSS THE WIDTH OF EACH PART.  COMPLETING REPAIRS AS PER AIRBUS HELICOPTERS RDAS-EC135-53-2021-4334.

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