# SDR QMLA2011122811122

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 28, 2011
- Submitted: January 4, 2012
- Operation: Air carrier
- Aircraft: N62UP
- 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: 0475
- Aircraft time: 2,947 hours
- System (JASC): [5300 · Fuselage Structure (General)](https://openairdocs.org/jasc/5300)
- Part: Unknown
- Condition: Unknown
- Location: Unknown
- Stage of operation: TO
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QMLA2011122811122

## Discrepancy

THE PILOT AND MEDICAL CREW REPORTED HEARING A LOUD "BANG" WHEN TAKING OFF FROM HOSPITAL.  THIS IS A RE-OCCURING ISSUE WITH THIS ACFT.  THE PILOT IMMEDIATELY RETURNED TO BASE, WROTE UP THE DISCREPANCY AND CONTACTED MX.

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