N158BK1985 Eurocopter Deutschland Gmbh MBB BK-117 A4
This N-number isn't registered right now. Below is its last known registration, canceled Jul 1, 2013.
Safety record in brief:No NTSB accidents or incidents since 198213 ADs may apply37 service difficulty reports
- Registration
- Deregistered
Registration
FAA Aircraft Registry · Oct 20, 2026- Last registered owner
- Rocky Mountain Holdings L L C
- Owner type
- Corporation
- City, state
- Englewood, CO
- Certificate issued
- May 30, 1996
- Canceled
- Jul 1, 2013
- Airworthiness
- Standard · Transport
- Airworthiness date
- Aug 26, 2002
We never show street addresses, even though they appear in the public FAA file. Individual owners are shown by city and state only.
Airframe & engine
FAA Registry + type dataAirframe
- Manufacturer
- Eurocopter Deutschland Gmbh
- Model
- MBB BK-117 A4
- Year
- 1985
- Serial number
- 7058
- Aircraft type
- Rotorcraft
- Category
- Land
- Certification
- Type Certificated
- Seats
- 8
- Engines
- 2
- Max takeoff weight
- Up to 12,499 lb
- Type certificate data sheet
- H13EU
- Mode S code
- A0E80A
Engine
- Make and model
- Honeywell Lts101-600 Sr
- Type
- Turbo-shaft
- Power
- 650 hp
Total time and engine hours aren't public. They appear here once the owner adds logbooks.
Ownership history
Ownership history from FAA records- 1996 – 2013Rocky Mountain Holdings L L CEnglewood, CO
Individual owners are shown by city and state only.
Safety record
NTSB · Oct 15, 2026 · FAA ADs · Oct 20, 2026 · SDRs · Oct 16, 2026NTSB events (0)
No NTSB accidents or incidents found for this airframe since 1982.
ADs published since 1998 that may apply (13)
These match the airframe or engine model. Whether each one applies, and whether it's been complied with, depends on serial numbers, equipment and logbook entries. Applicability must be confirmed by a mechanic against the aircraft's records.
| AD | Subject | Effective | Applies to |
|---|---|---|---|
| 2021-05-07 | Airbus Helicopters Deutschland GmbH (Type Certificate Previously Held by Eurocopter… | Apr 16, 2021 | Airframe (MBB BK-117 A4)Only with: Model BO-105A, BO-105C, and BO-105S helicopters only with voltage regulator P/N 51565-000, 51565-000R, or 51509-002R installed; MBB-BK 117 models apply unconditionally. |
| 2019-05-05 | Airbus Helicopters Deutschland GmbH (Previously Eurocopter Deutschland GmbH) Helicopters | Apr 17, 2019 | Airframe (MBB BK-117 A4)Only with: Main rotor (M/R) mast assembly part number 4639 205 011 installed. |
| 2016-01-14 | Airbus Helicopters Deutschland GmbH (Previously Eurocopter Deutschland GmbH) Helicopters | Feb 25, 2016 | Airframe (MBB BK-117 A4) |
| 2014-06-51 | Airbus Helicopters Deutschland GmbH (Airbus Helicopters) (Type Certificate Previously… | Jul 30, 2014 | Airframe (MBB BK-117 A4)Only with: Metro Aviation, Inc. vapor-cycle air conditioning kit pulley P/N 30001 installed in accordance with STC No. SH3880SW. |
| 2013-16-13 | Eurocopter Deutschland GmbH Helicopters | Sep 27, 2013 | Airframe (MBB BK-117 A4)Only with: With specified tail rotor control lever and tail rotor balance weight part numbers installed (varies by model: BO-105A/C/S/LS A-1 levers P/N 105-317231, 105-317365, 105-31736, 105-31767, 105-31728, 1121-31730 with weights P/N 117-31715.01, 117-31715.02, 105-31728.03, 105-31732.07, 105-31732.08; BO-105LS A-3 levers P/N 105-31736, 105-31767 with weights P/N 117-31715.01, 117-31715.02, B642M1011 201, 105-317171.10; MBB-BK 117 levers P/N 117-31730, 117-317361, 105-31736 with weights P/N 117-31714.07, 117-31715.01, 117-31720.01, 117-31730.02). |
Show all 13 ADsShow fewer ADs
| AD | Subject | Effective | Applies to |
|---|---|---|---|
| 2013-11-15 | Eurocopter Deutschland GmbH Helicopters | Jul 26, 2013 | Airframe (MBB BK-117 A4)Certain serial numbers: EC135 P1 0005–0699; EC135 P2 0005–0699; EC135 P2+ 0005–0699; EC135 T1 0005–0699; EC135 T2 0005–0699; EC135 T2+ 0005–0699; …. Only with: BO-105A/C/S/LS A-1 with cantilever assembly P/N 105-40132 or 105-40139; BO 105 LS A-3 with cantilever assembly P/N 105-40139; EC135 (excluding S/Ns 0076, 0093, 0098, 0099, 0102, 0104, 0106, 0108, 0110, 0111, 0113, 0114, 0116, 0117, 0119) with cyclic stick locking device P/N L670M1045101/-102/-104/-105/-106/-107 and pin P/N L311M1038205 or L311M1099205; MBB-BK117 A-1 through C-1 with cyclic stick holder assembly P/N 117-41140-01, 117-41230-01 or 117-41230-03; MBB-BK117 C-2 with cyclic stick locking device P/N B856M1011101 and pin P/N L311M1038205 or L311M1099205 installed. |
| 2012-13-11 | Eurocopter Deutschland GmbH Helicopters | Aug 7, 2012 | Airframe (MBB BK-117 A4)Serial numbers per Appendix 1 of Able Engineering & Component Services Alert Service Bulletin No. 2012-001, Revision IR, dated March 7, 2012. Only with: Tail rotor pitch link P/N 117-31821, 117-31822, or B642M1018101 with a serial number listed in Appendix 1 of Able ASB No. 2012-001 installed. |
| 2001-22-07 | Honeywell International, Inc. LTP 101 Series Turboprop and LTS101 Series Turboshaft… | Nov 30, 2001 | Engine (LTS101-600 SR)Only with: Rigid tube fuel manifolds P/N 4-301-042-02, -04, -05, -06, 4-301-236-01, -02, -03, -04, 4-301-286-01, -02, or 4-301-376-01 installed. |
| 2000-26-06 | Eurocopter Deutschland GMBH Model MBB-BK 117 Helicopters | Feb 26, 2001 | Airframe (MBB BK-117 A4) |
| 2000-08-16 | Eurocopter Deutschland GMBH Model MBB-BK 117 A-1, A-3, A-4, B-1, B-2, and C-1 Helicopters | Jun 2, 2000 | Airframe (MBB BK-117 A4)Certain serial numbers: 7001–7253; 7500–7523. Only with: With transmission door cowling LH P/N 117-23206-51 or 117-233731, RH P/N 117-23206-52 or 117-233741, and engine door cowling LH P/N 117-23303-51 or 117-23303-53, RH P/N 117-23303-52 or 117-23303-54 installed. |
| 98-24-13 | Eurocopter Deutschland GmbH (ECD) (Eurocopter) Model MBB-BK117 A-1, A-3, A-4, B-1, B-2… | Dec 4, 1998 | Airframe (MBB BK-117 A4) |
| 97-23-07 | Eurocopter Deutschland GmbH Model MBB- BK 117 A-1, A-3, A-4, B-1, B-2 and C-1 Helicopters | Nov 5, 1997 | Airframe (MBB BK-117 A4)Certain serial numbers: MBB-BK 117 A-1 7001–7250; MBB-BK 117 A-3 7001–7250; MBB-BK 117 A-4 7001–7250; MBB-BK 117 B-1 7001–7250; MBB-BK 117 B-2 7001–7250; MBB-BK 117 C-1 7500–7520. Only with: With clutch P/N 4639302044 or P/N CL42067-1 installed. |
| 95-21-12 | Eurocopter Deutschland GmbH (ECD) Model MBB-BK 117 A-1, A-3, A-4, B-1, B-2, and C-1… | Nov 20, 1995 | Airframe (MBB BK-117 A4) |
AI-extracted — verify against original. Matched from each AD's applicability section; ADs replaced by a later AD are left out.
Service Difficulty Reports (37)
Reports of failures and defects that operators and repair stations sent to the FAA since 1995. A report describes one finding; it is not an accident.
- Engine air · modulator · stickingJun 12, 2008
DURING ANNUAL TRAINING/CHECK RIDE, THERE DEVELOPED AN UNCOMMANDED, INTERMITTENT TORQUE SPLITS OF UP TO 25 PERCENT WITH NO COLLECTIVE MOVEMENTS OR TORQUE MATCHING ATTEMPTS. N1 AND TOT INDICATIONS FOLLOWED EACH ENGINE THROUGH THE SPLITS. FURTHER TROUBLESHOOTING PROVIDED NO CONCLUSIVE REASON FOR…
From FAA Service Difficulty Reports; matched by N-number. - Engine · actuator · failedMay 27, 2008
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 AND STAYED FIXED AT 60 PERCENT TORQUE. THE NR 2 ENGINE RESPONDED APPROPRIATELY, CAUSING LARGE TORQUE SPLITS. ATTEMPTED TO TRIM THE NR 1…
From FAA Service Difficulty Reports; matched by N-number and serial number. - Engine · impeller · crackedNov 13, 2001
CRACKED COMPRESSOR IMPELLER BLADE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
From FAA Service Difficulty Reports; matched by N-number and serial number.
Show all 10 reportsShow fewer reports
- Engine fuel and control · tube · wornJun 3, 2000
TUBE-START ASSIST TO MANIFOLD FEED WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. (X)
From FAA Service Difficulty Reports; matched by N-number and serial number. - Engine · bearing · corrodedJun 3, 2000
BEARING - ANNULAR BALL, COMPRESSOR, EXCESSIVE PITTING REPLACED WITH NEW UNIT, CORRECTED. PROBLEM. (X)
From FAA Service Difficulty Reports; matched by N-number and serial number. - Engine · seal · wornJun 3, 2000
SEAL RING - FIRST TURBINE SHROUD, WORN BEYOND SERVICEABLE LIMITS. REPLACED 2 EACH WITH NEW UNITS, CORRECTED PROBLEM. (X)
From FAA Service Difficulty Reports; matched by N-number and serial number. - Engine · spring · wornJun 3, 2000
SPRING - SEAL RING EXPANDER, WORN BEYOND SERVICEABLE LIMITS. REPLACED 2 EACH WITH NEW UNITS, CORRECTED PROBLEM. (X)
From FAA Service Difficulty Reports; matched by N-number and serial number. - Engine · bearing · wornJun 3, 2000
BEARING - CYLINDER ROLLER NR 2, WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. (X)
From FAA Service Difficulty Reports; matched by N-number and serial number. - Engine · curl · damagedJun 3, 2000
CURL ASSY - COMBUSTION CHAMBER, EXCESSIVE BURN IN SOME AREAS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. (X)
From FAA Service Difficulty Reports; matched by N-number and serial number. - Engine · seal · leakingJun 3, 2000
SEAL - NR 3 BEARING, LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. (X)
From FAA Service Difficulty Reports; matched by N-number and serial number.
Showing the 10 most recent of 37 reports.
Sources
- FAA Aircraft RegistryRegistration, owner city and state, airframe, engineupdated Oct 20, 2026
- NTSB accident and incident databaseAccidents and incidents since 1982updated Oct 15, 2026
- FAA Airworthiness Directives (Federal Register)ADs published since 1998updated Oct 20, 2026
- FAA Service Difficulty ReportsReports since 1995updated Oct 16, 2026