Safety record in brief:1 NTSB incident (minor damage, Jan 2017)29 ADs may apply2 service difficulty reports
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The gas generator rear bearing oil scavenge line blocked with coke, which resulted in a failed rear bearing due to an excess of oil lubrication. Contributing to the incident was the operator not completely performing the maintenance items and not utilizing an oil for higher temperatures.
From NTSB records; matched by serial number.Read NTSB report (search CAROL for CEN17IA094)
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 |
|---|---|---|---|
| 2014-05-06 R1 | Airbus Helicopters Deutschland GmbH Helicopters (Type Certificate Previously Held by… | Jan 22, 2019 | Airframe (MBB-BK 117 C-2)Certain serial numbers: EC135 P1 0005–00829; EC135 P2 0005–00829; EC135 P2+ 0005–00829; EC135 T1 0005–00829; EC135 T2 0005–00829; EC135 T2+ 0005–00829; …. Only with: EC135: tail rotor control lever P/N L672M2802205 or L672M1012212, cyclic control lever P/N L671M1005250, collective control lever assembly P/N L671M2020108, or collective control plate P/N L671M5040207 installed; MBB-BK 117C-2: tail rotor control lever assembly P/N B672M1007101 or B672M1807101, tail rotor control lever P/N B672M1002202 or L672M2802205, or lateral control lever assembly P/N B670M1008101 installed. |
| 2017-03-01 | Airbus Helicopters Deutschland GmbH (Previously Eurocopter Deutschland GmbH) Helicopters | Mar 31, 2017 | Airframe (MBB-BK 117 C-2)Certain serial numbers: EC135 0005–00829; MBB-BK 117 C-2 9004–9310. Only with: EC135: with tail rotor control lever P/N L672M2802205 or L672M1012212, cyclic control lever P/N L671M1005250, collective control lever assembly P/N L671M2020108, or collective control plate P/N L671M5040207 installed; MBB-BK 117 C-2: with tail rotor control lever assembly P/N B672M1007101 or B672M1807101, tail rotor control lever P/N B672M1002202 or L672M2802205, or lateral control lever assembly P/N B670M1008101 installed. |
| 2016-22-10 | Turbomeca S.A. Turboshaft Engines | Dec 6, 2016 | Engine (ARRIEL 1E2)Only with: Engines with modification TU376 installed. |
| 2016-21-03 | Airbus Helicopters Deutschland GmbH (Previously Eurocopter Deutschland GmbH) (Airbus… | Nov 25, 2016 | Airframe (MBB-BK 117 C-2)Only with: Lateral duplex trim actuator P/N 418-00878-050 or 418-00878-051, or longitudinal duplex trim actuator P/N 418-00878-000 or 418-00878-001, installed. |
| 2016-04-14 | Turbomeca S.A. Turboshaft Engines | Apr 1, 2016 | Engine (ARRIEL 1E2)Only with: Engines with tachometer boxes P/N 9580116170, 9580116260, 9580116900, 9580117110 (all S/Ns), or P/N 9580117550 with S/N 1499 and below (with or without suffix) or S/N 1500 and above without suffix EL, that also have electrical connectors labeled P10106, P10098, and P10108, or P11F, P13F, and P15F installed. |
| AD | Subject | Effective | Applies to |
|---|---|---|---|
| 2015-12-09 R1 | Airbus Helicopters Deutschland GmbH (Previously Eurocopter Deutschland GmbH) (Airbus… | Feb 25, 2016 | Airframe (MBB-BK 117 C-2) |
| 2016-01-14 | Airbus Helicopters Deutschland GmbH (Previously Eurocopter Deutschland GmbH) Helicopters | Feb 25, 2016 | Airframe (MBB-BK 117 C-2) |
| 2015-13-04 | Turbomeca S.A. Turboshaft Engines | Sep 1, 2015 | Engine (ARRIEL 1E2) |
| 2014-06-51 | Airbus Helicopters Deutschland GmbH (Airbus Helicopters) (Type Certificate Previously… | Jul 30, 2014 | Airframe (MBB-BK 117 C-2)Only with: Metro Aviation, Inc. vapor-cycle air conditioning kit pulley P/N 30001 installed in accordance with STC No. SH3880SW. |
| 2014-13-01 | Airbus Helicopters Deutschland GmbH (Airbus Helicopters) (Previously Eurocopter… | Jul 15, 2014 | Airframe (MBB-BK 117 C-2)Only with: Goodrich hoist damper unit P/N 44307-480, 44307-480-1, or 44307-480-2 installed. |
| 2014-05-04 | Eurocopter Deutschland GmbH Helicopters | Apr 14, 2014 | Airframe (MBB-BK 117 C-2)Only with: With a jettisonable main cabin sliding door installed. |
| 2013-21-06 | Eurocopter Deutschland GmbH Helicopters | Jan 31, 2014 | Airframe (MBB-BK 117 C-2)Only with: Goodrich external mounted hoist with boom support assembly P/N 44301-500, 44307-500, or 44307-500-1 installed (EC135); boom P/N 44307-500 installed (MBB-BK 117 C-2). |
| 2013-24-05 | Turbomeca S.A. Turboshaft Engines | Jan 28, 2014 | Engine (ARRIEL 1E2)Serial numbers per Figure 2 of Turbomeca S.A. Alert MSB No. A292 72 0838, Version A, dated May 24, 2013. Only with: Equipped with free turbine (FT) module (M04) with part and serial numbers listed in Figure 2 of Turbomeca Alert MSB No. A292 72 0838. |
| 2013-16-20 | Eurocopter Deutschland GmbH (ECD) Helicopters | Sep 27, 2013 | Airframe (MBB-BK 117 C-2) |
| 2013-12-05 | Eurocopter Deutschland GmbH Helicopters | Aug 20, 2013 | Airframe (MBB-BK 117 C-2)Only with: Bevel gear P/N 4639 310 065 installed in tail rotor intermediate gear box (IGB) P/N 4639 002 007. |
| 2013-11-15 | Eurocopter Deutschland GmbH Helicopters | Jul 26, 2013 | Airframe (MBB-BK 117 C-2)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. |
| 2013-10-05 | Eurocopter Deutschland GmbH Helicopters | Jun 10, 2013 | Airframe (MBB-BK 117 C-2) |
| 2012-27-02 | Turbomeca S.A. Turboshaft Engines | Feb 14, 2013 | Engine (ARRIEL 1E2) |
| 2012-23-12 | Turbomeca S.A. Turboshaft Engines | Jan 7, 2013 | Engine (ARRIEL 1E2)Only with: Engines with fuel control units (FCUs) manufactured, repaired, or overhauled on or before March 31, 2008. |
| 2012-24-03 | Turbomeca S.A. Turboshaft Engines | Jan 7, 2013 | Engine (ARRIEL 1E2)Only with: Engines that have not incorporated Turbomeca S.A. Modification TU360. |
| 2012-13-11 | Eurocopter Deutschland GmbH Helicopters | Aug 7, 2012 | Airframe (MBB-BK 117 C-2)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. |
| 2012-12-21 | Eurocopter Deutschland GmbH Helicopters | Jul 10, 2012 | Airframe (MBB-BK 117 C-2) |
| 2012-09-11 | Eurocopter Deutschland GMBH Helicopters | Jul 9, 2012 | Airframe (MBB-BK 117 C-2)Only with: Turbomeca Arriel 1E2 engine installed with a Fuel Control Unit (FCU) not modified with Turbomeca Modification TU 358. |
| 2011-21-13 | Eurocopter Deutschland GmbH (ECD) Model MBB-BK 117 C-2 Helicopters | Nov 21, 2011 | Airframe (MBB-BK 117 C-2) |
| 2011-05-08 | Turbomeca Model Arriel 1E2, 1S, and 1S1 Turboshaft Engines | Mar 9, 2011 | Engine (ARRIEL 1E2)Only with: Engines that have incorporated Turbomeca SB No. 292 73 0826, Version A, dated October 13, 2009, or Turbomeca Internal Consign No. 298468. |
| 2010-22-07 | Eurocopter Deutschland GmbH Model MBB-BK 117 C-2 Helicopters | Dec 3, 2010 | Airframe (MBB-BK 117 C-2)Only with: Tail rotor control lever B642M1009103 installed. |
| 2009-26-07 | Turbomeca Arriel 1A1, 1A2, 1B, 1C, 1C1, 1C2, 1D, 1D1, 1E2, 1K1, 1S, and 1S1 Turboshaft… | Jan 12, 2010 | Engine (ARRIEL 1E2)Serial numbers per Figure 1 of Turbomeca Mandatory Service Bulletin No. A292 72 0825, Version B. Only with: Engines modified by Turbomeca Modification TU332 and fitted with a reduction gearbox (module M05) listed by serial number in the MSB. |
| 2008-15-02 | Eurocopter Deutschland GMBH Model MBB-BK 117C-2 Helicopters | Sep 3, 2008 | Airframe (MBB-BK 117 C-2)Certain serial numbers: MBB-BK 117C-2 9004–9104; MBB-BK 117C-2 9106; MBB-BK 117C-2 9107; MBB-BK 117C-2 9111. Only with: With fire extinguishing system B26K1002-801, B262K1003-801, or B262K1004-801 installed. |
| 2003-16-03 | Turbomeca Arriel 1 Series Turboshaft Engines | Sep 12, 2003 | Engine (ARRIEL 1E2)Only with: Engines that have not incorporated modification TU 202. |
AI-extracted — verify against original. Matched from each AD's applicability section; ADs replaced by a later AD are left out.
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.
THE PROBLEM APPEARS TO BE A PLUGGED SCAVENGE LINE DUE TO INTERNAL ENGINE COKING. THE RESULT COULD BE EXCESSIVE INTERNAL OIL PRESSURES CAUSING EXTERNAL DISCHARGE OF THE OIL, IN THIS CASE OUT THROUGH A VENT LINE. ALONG WITH THAT THERE WOULD BE A BYPASS OF OIL INTERNALLY THROUGH THE LABYRINTH SEALS…
From FAA Service Difficulty Reports; matched by N-number and serial number.DURING FLIGHT, A SLIGHT 'SQUEAL' NOISE WAS HEARD FOLLOWED BY A BURNED RUBBER ODOR. THE AIR CONDITIONER WAS SWITCHED OFF, THE NOISE QUIT. ACFT MADE A PRECAUTIONARY LANDING AT A LOCAL AIRPORT. THE AIR CONDITIONER COMPRESSOR HAD LOCKED UP AND BURNED THE DRIVE BELT.
From FAA Service Difficulty Reports; matched by N-number and serial number.