Safety record in brief:1 NTSB accident (substantial damage, Feb 2025)19 ADs may apply7 service difficulty reports
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The sUAS operator’s failure to see and avoid a helicopter, resulting in a midair collision between the helicopter and the sUAS.
From NTSB records; matched by serial number.Read NTSB report (search CAROL for ERA25LA129)
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 |
|---|---|---|---|
| 2025-13-07 | Engine Fuel and Control | Aug 6, 2025 | Engine (ARRIUS 2B2) |
| 2021-26-26 | Engine Controls | Feb 23, 2022 | Engine (ARRIUS 2B2)Only with: Engines with an installed EECU P/N 70EMF01080 or 70EMF01090 (Arrius 2B1 without overspeed protection TU 19C), P/N 70EMF01100 or 70EMF01120 (Arrius 2B1 with overspeed protection TU 67C or TU 23C), P/N 70EMH01000 or 70EMH01010 (Arrius 2B1A), or P/N 70EMM01000 (Arrius 2B2). |
| 2021-17-05 | Safran Helicopter Engines, S.A. (Type Certificate Previously Held by Turbomeca S.A.)… | Oct 12, 2021 | Engine (ARRIUS 2B2) |
| 2014-05-06 R1 | Airbus Helicopters Deutschland GmbH Helicopters (Type Certificate Previously Held by… | Jan 22, 2019 | Airframe (EC135T2)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. |
| 2018-07-01 | Airbus Helicopters Deutschland GmbH (Type Certificate Previously Held by Eurocopter… | May 3, 2018 | Airframe (EC135T2)Serial numbers per Table 1 of Airbus Helicopters Alert Service Bulletin EC135-63A-017, Revision 2, dated December 5, 2016. Only with: Main transmission FS108 housing upper part P/N 4649 301 034, 4649 301 067, or 4649 301 088 installed, with a serial number listed in Table 1 of ASB EC135-63A-017. |
| AD | Subject | Effective | Applies to |
|---|---|---|---|
| 2017-03-01 | Airbus Helicopters Deutschland GmbH (Previously Eurocopter Deutschland GmbH) Helicopters | Mar 31, 2017 | Airframe (EC135T2)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. |
| 2016-11-21 | Airbus Helicopters Deutschland GmbH (Previously Eurocopter Deutschland GmbH) (Airbus… | Jul 11, 2016 | Airframe (EC135T2) |
| 2015-12-09 R1 | Airbus Helicopters Deutschland GmbH (Previously Eurocopter Deutschland GmbH) (Airbus… | Feb 25, 2016 | Airframe (EC135T2) |
| 2014-16-24 | Airbus Helicopters Deutschland GmbH (Previously Eurocopter Deutschland GbmH) (Airbus… | Sep 25, 2014 | Airframe (EC135T2)Only with: Main rotor hub shaft P/N L623M1006101, L623M1206101, L623M1006102, L623M1206102, L623M1006103, or L623M1206103 installed. |
| 2014-13-09 | Airbus Helicopters Deutschland GmbH (Type Certificate Previously Held by Eurocopter… | Jul 30, 2014 | Airframe (EC135T2)Only with: Mounting ring frame X9227 P/N L535H2120301, L535H2120303, or L535H2120304 installed, except those with frame reinforcement P/N L535H2100201 installed. |
| 2014-05-01 | Eurocopter Deutschland GmbH Helicopters | Apr 14, 2014 | Airframe (EC135T2)Only with: Main gearbox (MGB) P/N 4649 010 003, 4649 010 005, 4649 010 006, 4649 010 006X, 4649 010 008, 4649 010 008X, 4649 001 007, 4649 010 010, or 4649 010 013 installed. |
| 2014-01-02 | Eurocopter Deutschland GmbH Helicopters | Mar 3, 2014 | Airframe (EC135T2)Certain serial numbers: 870; 872; 873; 879; 883; 884; …. Only with: Mechanical air conditioning system compressor bearing block upper bearing P/N L210M1872105 installed. |
| 2013-21-06 | Eurocopter Deutschland GmbH Helicopters | Jan 31, 2014 | Airframe (EC135T2)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). |
| 2013-21-05 | Eurocopter Deutschland GmbH Helicopters | Dec 5, 2013 | Airframe (EC135T2)Only with: With bearing P/N LN9367GE6N2, rod P/N L671M5040205, lever P/N L671M5040101, and floor P/N L533M1014101 through L533M1014106 installed. |
| 2013-18-05 | Eurocopter Deutschland GmbH Helicopters | Oct 18, 2013 | Airframe (EC135T2)Only with: Fire extinguishing system P/N L262M1808101, L262M1812101, or L262M1812102 installed. |
| 2013-11-15 | Eurocopter Deutschland GmbH Helicopters | Jul 26, 2013 | Airframe (EC135T2)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. |
| 2008-19-11 | Turbomeca S.A. Arrius 2B1, 2B1A, 2B2, and 2K1 Turboshaft Engines | Oct 8, 2008 | Engine (ARRIUS 2B2) |
| 2006-26-07 | Turbomeca Model Arrius 2B1, 2B1A, and 2B2 Turboshaft Engines | Jan 18, 2007 | Engine (ARRIUS 2B2)Only with: Engines that do not embody modification TU122. |
| 2004-22-11 | Eurocopter Deutschland GmbH Model EC135 P1, P2, T1, and T2 Helicopters | Dec 7, 2004 | Airframe (EC135T2)Only with: Main rotor drive aluminum torque strut assembly P/N L633M1001 103 or L633M1001 105 installed. |
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.
OBJECT STRUCK ON FINAL APPROACH TO JEFFERSON UNIVERSITY HOSPITAL. UPON SHUTDOWN, DAMAGE WAS NOTED TO THE TOP OF THE FUSELAGE AND WITNESS MARKS AND DAMAGE TO 3 OF THE ROTOR BLADES.
From FAA Service Difficulty Reports; matched by N-number and serial number.DURING 1000 HOUR INSPECTION, FOUND 3 ANGLES THAT ATTACH CONTROL POST TO FLOOR CORRODED. AFTER REMOVING THE ANGLES, FOUND THAT THE FLOOR UNDER THE ANGLES WAS ALSO CORRODED.
From FAA Service Difficulty Reports; matched by N-number and serial number.PILOTS SIDE (RIGHT SIDE) COCKPIT FLOOR SKIN AT APPROX F.S. 1700 DURING 1000 HOUR INSPECTION, HEAVY CORROSION WAS FOUND ON THE TOP AND BOTTOM SKIN OF THE COCKPIT FLOOR AT THE GROUND SHEET.
From FAA Service Difficulty Reports; matched by N-number and serial number.DURING 1000 HOUR INSPECTION, FOUND LH AND RH KEEL BEAM STRAPS (LH PN: L533M1009203 AND RH PN: L533M1010203) CORRODED NEAR THE FORWARD END OF THE CABIN FLOOR.
From FAA Service Difficulty Reports; matched by N-number and serial number.DURING 1000 HOUR INSPECTION, THE FWD LOWER SIDE OF THE FRAME 3 BULKHEAD AT APPROX F.S. 3150 W.L. 1480 WAS FOUND TO HAVE CORROSION AT THE BOTTOM EDGE OF THE WEB.
From FAA Service Difficulty Reports; matched by N-number and serial number.DURING INSPECTION, FOUND ONE CRACK ABOUT ONE HALF INCH LONG IN THE FRAME 5 WEB AT THE LOWER BULKHEAD ATTACH HOLE, AND ONE CRACK ABOUT ONE HALF INCH LONG AT THE LEFT SIDE LOWER BULKHEAD ATTACH HOLE.
From FAA Service Difficulty Reports; matched by N-number and serial number.DURING INSPECTION, FOUND FRAME 1 CORRODED ON LH AND RH SIDES UNDER TAIL ROTOR CONTROL PEDALS.
From FAA Service Difficulty Reports; matched by N-number and serial number.