# N158BK: 1985 Eurocopter Deutschland MBB BK-117 A4, registration cancelled 2013-07-01 - Type: Cancelled registration (FAA registry, deregistered aircraft) - Cancelled: July 1, 2013 - Status when cancelled: Registration expired, pending cancellation - Airframe: [Eurocopter Deutschland MBB BK-117 A4](https://openairdocs.org/model/eurocopter-deutschland-mbb-bk-117-a4) (registry code 5626035) - Engine: [Honeywell LTS101-600 SR](https://openairdocs.org/engine/honeywell-lts101-600-sr) (registry code 33904) - Data sheets: [TCDS H13EU](https://openairdocs.org/tcds/H13EU) (OpenAirDocs) - Serial number: 7058 - Year built: 1985 - Type of aircraft: Rotorcraft - Engine type: Turbo-shaft - Airworthiness: Standard, transport - Airworthiness date: August 26, 2002 - Certificate issued: May 30, 1996 - Last registry action: April 15, 2008 - Mode S code: A0E80A - Owner when cancelled: [Rocky Mountain Holdings L L C](https://openairdocs.org/faa-owner/ROCKY%20MOUNTAIN%20HOLDINGS%20L%20L%20C) - 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/N158BK - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=158BK - Page: https://openairdocs.org/deregistered/N158BK-2013-07-01 From the FAA registry file of October 29, 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 Eurocopter Deutschland MBB BK-117 A4: https://openairdocs.org/model/eurocopter-deutschland-mbb-bk-117-a4.md ## Service difficulty reports (37) Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. - [SDR QML2008F00004](https://openairdocs.org/sdr/QML2008F00004), Jun 12, 2008: MODULATOR. STICKING. DURING ANNUAL TRAINING/CHECK RIDE, THERE DEVELOPED AN UNCOMMANDED, INTERMITTENT TORQUE SPLITS OF UP TO 25 PERCENT WITH NO COLLECTIVE MOVEMENTS OR TORQUE MATCHIN - [SDR 705805272008](https://openairdocs.org/sdr/705805272008), May 27, 2008: ACTUATOR. FAILED. AFTER DROPPING A PATIENT OFF AT THE HOSPITAL, ON THE RETURN LEG TO THE AIRCRAFT HOME BASE, IN CRUISE FLT, THE NR 1 ENGINE FAILED TO FOLLOW COLLECTIVE MOVEMENTS - [SDR R7MA33729](https://openairdocs.org/sdr/R7MA33729), Nov 13, 2001: IMPELLER. CRACKED. CRACKED COMPRESSOR IMPELLER BLADE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. - [SDR 20001107SH015](https://openairdocs.org/sdr/20001107SH015), Jun 3, 2000: THERMOCOUPLE. SHORTED. THERMOCOUPLE HAD INTERNAL SHORT. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. (X) - [SDR 20001107SH014](https://openairdocs.org/sdr/20001107SH014), Jun 3, 2000: THERMOCOUPLE. SHORTED. THERMOCOUPLE HAD INTERNAL SHORT. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. (X) - [SDR 20001107SH013](https://openairdocs.org/sdr/20001107SH013), Jun 3, 2000: SEAL. LEAKING. SEAL - NR 3 BEARING, LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. (X) - [SDR 20001107SH012](https://openairdocs.org/sdr/20001107SH012), Jun 3, 2000: CURL. DAMAGED. CURL ASSY - COMBUSTION CHAMBER, EXCESSIVE BURN IN SOME AREAS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. (X) - [SDR 20001107SH011](https://openairdocs.org/sdr/20001107SH011), Jun 3, 2000: BEARING. WORN. BEARING - CYLINDER ROLLER NR 2, WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. (X) - [SDR 20001107SH010](https://openairdocs.org/sdr/20001107SH010), Jun 3, 2000: SPRING. WORN. SPRING - SEAL RING EXPANDER, WORN BEYOND SERVICEABLE LIMITS. REPLACED 2 EACH WITH NEW UNITS, CORRECTED PROBLEM. (X) - [SDR 20001107SH009](https://openairdocs.org/sdr/20001107SH009), Jun 3, 2000: SEAL. WORN. SEAL RING - FIRST TURBINE SHROUD, WORN BEYOND SERVICEABLE LIMITS. REPLACED 2 EACH WITH NEW UNITS, CORRECTED PROBLEM. (X) - [SDR 20001107SH008](https://openairdocs.org/sdr/20001107SH008), Jun 3, 2000: BEARING. CORRODED. BEARING - ANNULAR BALL, COMPRESSOR, EXCESSIVE PITTING REPLACED WITH NEW UNIT, CORRECTED. PROBLEM. (X) - [SDR 20001107SH007](https://openairdocs.org/sdr/20001107SH007), Jun 3, 2000: TUBE. WORN. TUBE-START ASSIST TO MANIFOLD FEED WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. (X) - [SDR 20000918SH008](https://openairdocs.org/sdr/20000918SH008), Apr 12, 2000: IGNITION LEAD. SHORTED. INTERNAL SHORT. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. (X) - [SDR 20000918SH007](https://openairdocs.org/sdr/20000918SH007), Apr 12, 2000: IGNITION LEAD. SHORTED. IGNITION HAD INTERNAL SHORT. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. (X) - [SDR 99ZZZX4073](https://openairdocs.org/sdr/99ZZZX4073), Jul 18, 1999: SPEED PICKUP. INOPERATIVE. SPEED PICKUP INOPERATIVE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. - [SDR 99ZZZX3807](https://openairdocs.org/sdr/99ZZZX3807), Jul 9, 1999: BOLT. WORN. BOLT WORN BEYOND SERVICEABLE LIMITS. - [SDR 99ZZZX783](https://openairdocs.org/sdr/99ZZZX783), Jan 8, 1999: BEARING. CORRODED. BEARING REJECTED NEW OUT-OF BOX. EXCESSIVE CORROSION. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. - [SDR 99ZZZX782](https://openairdocs.org/sdr/99ZZZX782), Jan 8, 1999: BEARING. CORRODED. BEARING REJECTED NEW OUT-OF-BOX. EXCESSIVE CORROSION. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. - [SDR 99ZZZX781](https://openairdocs.org/sdr/99ZZZX781), Jan 8, 1999: BEARING. CORRODED. BEARING REJECTED NEW OUT-OF-BOX. EXCESSIVE CORROSION. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. - [SDR 99ZZZX780](https://openairdocs.org/sdr/99ZZZX780), Jan 8, 1999: BEARING. CORRODED. CLUTCH BEARING REJECTED NEW OUT-OF-BOX. EXCESSIVE CORROSION. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. - [SDR 99ZZZX890](https://openairdocs.org/sdr/99ZZZX890), Sep 18, 1998: BEARING. WORN. BEARING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. - [SDR 98ZZZX3374](https://openairdocs.org/sdr/98ZZZX3374), Jul 4, 1998: PICKUP. FAILED. PICKUP UNIT INOPERATIVE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. - [SDR 98ZZZX3384](https://openairdocs.org/sdr/98ZZZX3384), Mar 9, 1998: HARNESS. FAILED. HARNESS HAS INTERNAL SHORT. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. - [SDR 98ZZZX105](https://openairdocs.org/sdr/98ZZZX105), Nov 24, 1997: COMPUTER. INOPERATIVE. COMPUTER UNIT INOPERATIVE. REPLACED WITH USED UNIT, CORRECTED PROBLEM. - [SDR 98ZZZX1150](https://openairdocs.org/sdr/98ZZZX1150), Jul 28, 1997: SEAL. LEAKING. LEFT ENGINE NR 3 BEARING LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. - [SDR 98ZZZX1149](https://openairdocs.org/sdr/98ZZZX1149), Jul 28, 1997: SEAL. LEAKING. LEFT ENGINE NR 1 BEARING LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. - [SDR 98ZZZX106](https://openairdocs.org/sdr/98ZZZX106), Jul 28, 1997: ROTOR ASSY. FAILED. ROTOR ASSY FAILED SB LT101-72-10-0153, Q-ROTOR = 12.36 GMIN2. EXCESSIVE IBPT BLADE SHIFT. REPLACED WITH USED UNIT, CORRECTED PROBLEM. PART TOTAL CYCLES, 3,148. - [SDR 96ZZZX5669](https://openairdocs.org/sdr/96ZZZX5669), Jul 31, 1996: BELLOWS. TORN. BELLOWS IS TORN AROUND CLAMP AND FOLD AREAS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM - [SDR 96ZZZX1576](https://openairdocs.org/sdr/96ZZZX1576), Nov 29, 1995: SEAL. LEAKING. SEAL LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. - [SDR 96ZZZX1575](https://openairdocs.org/sdr/96ZZZX1575), Nov 29, 1995: SEAL RING. WORN. SEAL RING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH 2 EACH NEW UNITS, CORRECTED PROBLEM. - [SDR 95ZZZX5726](https://openairdocs.org/sdr/95ZZZX5726), Jun 24, 1995: BLADE. SKIN DEFORMED. BLADE FAILED INSPECTION FOR SKIN DEFORMATION AND LOOP ROVING. BLADE IS LOCATED AT CTI. - [SDR 95ZZZX5725](https://openairdocs.org/sdr/95ZZZX5725), Jun 24, 1995: BLADE. SKIN DEFORMED. BLADE FAILED INSPECTION FOR SKIN DEFORMATION AND LOOP ROVING. BLADE IS LOCATED AT CTI. - [SDR 95ZZZY0968](https://openairdocs.org/sdr/95ZZZY0968), May 10, 1995: BELLOWS. TORN. BELLOWS IS TORN AROUND CLAMP AND FOLD AREAS. REPLACED WITH NEW UNIT(S), CORRECTED PROBLEM. - [SDR 95ZZZX5483](https://openairdocs.org/sdr/95ZZZX5483), Apr 13, 1995: TRANSMITTER. FAILED. TRANSMITTER DEFECTIVE. SPINS RMI/HSI. CARDS IN SLAVE MODE. REPLACED WITH NEW UNIT(S) CORRECTED PROBLEM. - [SDR 95ZZZY0721](https://openairdocs.org/sdr/95ZZZY0721), Apr 5, 1995: TRANSMITTER. FAILED. PRESSURE TRANSMITTER WORKED FOR FIRST 30 MIN. FROM INSTALLATION. AFTER 30 MIN. UNIT FAILED TO INDICATE. REPLACED WITH NEW UNIT(S) CORRECTED PROBLEM. - [SDR 95ZZZY0720](https://openairdocs.org/sdr/95ZZZY0720), Apr 5, 1995: TRANSMITTER. FAILED. PRESSURE TRANSMITTER WORKED FOR 30 MINUTES FROM INSTALLATION. AFTER 30 MINUTES UNIT FAILED TO INDICATE. REPLACED WITH NEW UNIT(S) CORRECTED PROBLEM. - [SDR 95ZZZX5484](https://openairdocs.org/sdr/95ZZZX5484), Feb 23, 1995: FLANGE BUSHING. SCORED. FLANGE BUSHING HAS EXCESSIVE SCORING. REPLACED WITH NEW UNIT(S) CORRECTED PROBLEM. ## FAA accident and incident reports (2) From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [Incident 20060118001999I](https://openairdocs.org/incident/20060118001999I), Jan 18, 2006: Bolkms BK117A4 (N158BK), Memphis, FL, Minor damage. (-23) On January 18, 2006, at 2130 EST, a Eurocopter deutschia mbbb bk 117 A4 helicopter, N158BK, operating for rocky mountain helicopters, part 135… - [Incident 19890910047689I](https://openairdocs.org/incident/19890910047689I), Sep 10, 1989: Bolkms BK117A3 (N158BK), Chapel Hill, NC. Chip detector light on. Landed at destination. No chips found in detector. Reserviced detector. --- 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.