# N485UM: Messerschmitt-Bolkow-Blohm BK 117 A-4, registration cancelled 2013-06-05

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: June 5, 2013
- Status when cancelled: Valid registration
- Airframe: [Messerschmitt-Bolkow-Blohm BK 117 A-4](https://openairdocs.org/model/messerschmitt-bolkow-blohm-bk-117-a-4) (registry code 5626017)
- Data sheets: [TCDS H13EU](https://openairdocs.org/tcds/H13EU) (OpenAirDocs)
- Serial number: 7129
- Type of aircraft: Rotorcraft
- Certificate issued: June 9, 1999
- Last registry action: August 16, 2011
- Mode S code: A5FCFA
- Owner when cancelled: [Rocky Mountain Holdings LLC](https://openairdocs.org/faa-owner/ROCKY%20MOUNTAIN%20HOLDINGS%20LLC)
- Location: [Englewood, CO](https://openairdocs.org/faa-place/CO/Englewood)
- Owner type: Corporation
- Owner's area on the map: 39.5732° N, 104.8649° W: Placed by OpenAirDocs at the center of ZIP code 80112, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N485UM
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=485UM
- Page: https://openairdocs.org/deregistered/N485UM-2013-06-05

From the FAA registry file of November 7, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Messerschmitt-Bolkow-Blohm BK 117 A-4: https://openairdocs.org/model/messerschmitt-bolkow-blohm-bk-117-a-4.md

## Service difficulty reports (3)

Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

- [SDR QMLA2011012411012](https://openairdocs.org/sdr/QMLA2011012411012), Jan 24, 2011: ACCESS DOOR. CHAFED. THE LT TRANSMISSION ACCESS COWLING CHAFED INTO THE MAIN TRANSMISSION DECK STRUCTURE AT AF STA 4239, WL 2753 AND BL 452.00L BEYOND MFG ACCEPTABLE LIMITS. THE APP
- [SDR QMLA2009033109013](https://openairdocs.org/sdr/QMLA2009033109013), Mar 31, 2009: FUEL CAP. LOOSE. UPON REFUELING THE ACFT, FUEL CAP WAS NOT PROPERLY SEATED AND CAUSED A FUEL LEAK ONCE IN CRUISE FLIGHT. THE CAP WAS SECURE TO THE ACFT, BUT SLIGHTLY COCKED WHIC
- [SDR 712902242008](https://openairdocs.org/sdr/712902242008), Feb 24, 2008: WIRE. CHAFED. IMMEDIATELY AFTER TAKEOFF, AN ELECTRICAL BURNING ODOR WAS NOTED IN THE COCKPIT. SPAS (STICK POSITION AUGMENTATION SYSTEM) LIGHT ILLUMINATED AND SPAS CIRCUIT BRE

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