# Bell Helicopter Textron Canada 412

- Type: Aircraft model (FAA registry)
- Registry code: 1182209
- Manufacturer (registry): BELL HELICOPTER TEXTRON CANADA
- Model: 412
- Aircraft type: Rotorcraft
- Category: Rotorcraft
- Engines: 2 · Turbo-shaft
- Seats: 15
- Weight class: Up to 12,499 lb
- Certification: Type certificated
- Data sheet: [TCDS H4SW](https://openairdocs.org/tcds/H4SW) (OpenAirDocs)
- Holder: Bell Textron Inc.
- Registered aircraft: 0
- Page: https://openairdocs.org/model/bell-helicopter-textron-canada-412

Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker.

## ADs that may apply (OpenAirDocs)

Matched to this model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment.

- [AD 2026-08-10](https://openairdocs.org/ad/2026-08-10): Passenger compartment equipment · B/E Aerospace Fischer Medical Seat 230/305, EC135P1, EC135T1 and 19 more. Effective May 11, 2026
- [AD 2025-07-01](https://openairdocs.org/ad/2025-07-01): Air Data Computer · Synthetic Vision Electronic Flight Information System (Arrow STC SR09595RC or ST01523WI). Effective May 15, 2025
- [AD 2024-20-07](https://openairdocs.org/ad/2024-20-07): Emergency Equipment; Emergency Flotation Section · Apical Emergency Float Kit, P/N 20498 (STC SR00780LA or 12 others). Effective Dec 5, 2024
- [AD 2024-16-19](https://openairdocs.org/ad/2024-16-19): Rotorcraft Tail Boom · Bell Textron 212, 412CF, 412 and 1 more. Effective Nov 8, 2024
- [AD 2024-16-01](https://openairdocs.org/ad/2024-16-01): Fuselage structure · Bell Textron 205A, 205A-1, 205B and 4 more. Effective Sep 4, 2024
- [AD 2023-11-07](https://openairdocs.org/ad/2023-11-07): Ground Proximity System · Airbus Helicopters 47, 206, 210 and 237 more. Effective Jun 22, 2023
- [AD 2022-20-14](https://openairdocs.org/ad/2022-20-14): Main Rotor Gearbox · Bell Textron 204B, 205A, 205A-1 and 20 more. Effective Dec 27, 2022
- [AD 2022-22-12](https://openairdocs.org/ad/2022-22-12): Nose/Tail Landing Gear Structure/Axle · Replacement crosstubes P/N D212-664 (Dart Aerospace STC SR01298NY). Effective Nov 22, 2022
- [AD 2022-11-19](https://openairdocs.org/ad/2022-11-19): Aircraft Fuel System, Engine Oil System (Airframe) · Bell Textron 212, 412, 412CF and 1 more. Effective Jul 6, 2022
- [AD 2022-07-02](https://openairdocs.org/ad/2022-07-02): Rotorcraft Tail Boom · Bell Textron 205A, 205A-1, 205B and 5 more. Effective May 9, 2022
- [AD 2022-07-03](https://openairdocs.org/ad/2022-07-03): Flight Control System · Bell Textron 412, 412EP and 412CF. Effective Apr 27, 2022
- [AD 2022-05-10](https://openairdocs.org/ad/2022-05-10): Cabin Equipment/Furnishings · Airbus Helicopters AS332L, AS332L1, AS332L2 and 57 more. Effective Apr 20, 2022
- [AD 2020-22-07](https://openairdocs.org/ad/2020-22-07): Nacelle/Pylon Structure · Bell Textron 412, 412CF and 412EP. Effective Nov 18, 2020
- [AD 2020-16-10](https://openairdocs.org/ad/2020-16-10): Cabin Equipment/Furnishings · Bell Textron 204B, 205A, 205A-1 and 7 more. Effective Sep 3, 2020
- [AD 2020-12-10](https://openairdocs.org/ad/2020-12-10): Tail Rotor Blades · Bell Textron 205A, 205A-1, 205B and 4 more. Effective Jul 16, 2020
- [AD 2020-02-11](https://openairdocs.org/ad/2020-02-11): Inverter · Bell Helicopter Textron 412 and 412EP. Effective Mar 17, 2020
- [AD 2019-09-02](https://openairdocs.org/ad/2019-09-02): 7900 Engine Oil System and 2800 Aircraft Fuel System · Bell Helicopter Textron 212, 412, 412CF and 1 more. Effective Jun 4, 2019
- [AD 2018-16-14](https://openairdocs.org/ad/2018-16-14): Emergency Flotation Section · Bell Helicopter Textron 212, 412 and 412EP. Effective Oct 4, 2018
- [AD 2013-20-18](https://openairdocs.org/ad/2013-20-18): Main Rotor Head · Bell Helicopter Textron 412, 412CF and 412EP. Effective Nov 29, 2013
- [AD 2013-16-16](https://openairdocs.org/ad/2013-16-16): Main Landing Gear Strut/Axle/Truck · Replacement crosstubes P/N D212-664 (Dart Aerospace STC SR01298NY). Effective Sep 17, 2013
- [AD 2013-15-02](https://openairdocs.org/ad/2013-15-02): Tail Rotor Blades · Bell Helicopter Textron 205A, 205A-1, 205B and 5 more. Effective Aug 14, 2013
- [AD 2013-06-51](https://openairdocs.org/ad/2013-06-51): Equipment/Furnishings · Agusta A109, A109A, A109A II and 43 more. Effective Jul 15, 2013
- [AD 2013-05-14](https://openairdocs.org/ad/2013-05-14): Main Rotor Mast/Swashplate · Bell Helicopter Textron 412 and 412EP. Effective Apr 26, 2013
- [AD 2013-01-04](https://openairdocs.org/ad/2013-01-04): Main Landing Gear · Bell Helicopter Textron 412 and 412EP. Effective Mar 11, 2013
- [AD 2012-22-11](https://openairdocs.org/ad/2012-22-11): Main Rotor · Bell Helicopter Textron 412, 412CF and 412EP. Effective Dec 20, 2012
- [AD 2012-22-06](https://openairdocs.org/ad/2012-22-06): High Landing Gear Forward Crosstube Assembly · Aeronautical Accessories AB412, AB412 EP, 205A and 7 more. Effective Dec 14, 2012
- [AD 2012-11-13](https://openairdocs.org/ad/2012-11-13): High Landing Gear Aft Crosstube Assembly · Aeronautical Accessories AB412, AB412 EP, 412 and 3 more. Effective Jul 30, 2012
- [AD 2011-25-01](https://openairdocs.org/ad/2011-25-01): Liferafts · Agusta AB412, AB412 EP, 206A and 23 more. Effective Jan 17, 2012
- [AD 2010-26-52](https://openairdocs.org/ad/2010-26-52): Tail Rotor Blade · Bell Helicopter Textron 204B, 205A, 205A-1 and 6 more. Effective Nov 15, 2011
- [AD 2010-10-16](https://openairdocs.org/ad/2010-10-16): Crosstube · Agusta AB412, AB412 EP, 205A and 6 more. Effective Jun 8, 2010
- [AD 2007-22-02](https://openairdocs.org/ad/2007-22-02): Tail rotor blade (blade) forward tip weight retention block (tip block) and the aft tip closure (tip closure) · Bell Helicopter Textron 205A, 205A-1, 205B and 4 more. Effective Nov 30, 2007
- [AD 2005-20-38](https://openairdocs.org/ad/2005-20-38): Reservoir assembly adapter (adapter) · Bell Helicopter Textron 212, 412 and 412EP with STC SH2820SO. Effective Oct 28, 2005
- [AD 2001-22-14](https://openairdocs.org/ad/2001-22-14): Fire Extinguishing System Bottle Cartridges · Airbus A300 B2-1A, A300 B2-1C, A300 B2-203 and 105 more. Effective Dec 10, 2001
- [AD 2001-13-01](https://openairdocs.org/ad/2001-13-01): Tail Rotor Counterweight Bellcrank (bellcrank) Retention Nut (retention nut) · Bell Helicopter Textron 205A-1, 205B, 212 and 3 more. Effective Aug 1, 2001
- [AD 2001-09-11](https://openairdocs.org/ad/2001-09-11): Tail Rotor Yoke · Agusta AB412, AB412 EP, 412 and 2 more. Effective Jun 11, 2001
- [AD 2001-08-04](https://openairdocs.org/ad/2001-08-04): Main Rotor Actuator · Bell Helicopter Textron 205A-1, 205B, 212 and 3 more. Effective May 3, 2001
- [AD 99-23-23](https://openairdocs.org/ad/99-23-23): Measure Yolk  Inspection · Bell Helicopter Textron 412, 412CF and 412EP. Effective Dec 1, 1999
- [AD 97-11-04](https://openairdocs.org/ad/97-11-04): Mast And Spline Plate · Bell Helicopter Textron 412 and 412EP. Effective Jun 24, 1997
- [AD 97-07-06](https://openairdocs.org/ad/97-07-06): Swashplate Support Assembly · Bell Helicopter Textron 412. Effective May 9, 1997
- [AD 94-18-09](https://openairdocs.org/ad/94-18-09): Main Transmission Lower Planetary Spider · Bell Helicopter Textron 205A, 205A-1, 205B and 2 more. Effective Oct 14, 1994
- [AD 93-17-12](https://openairdocs.org/ad/93-17-12): Main Rotor Transmission Lower Planetary Spider · Bell Helicopter Textron 204B, 205A, 205A-1 and 3 more. Effective Jul 29, 1994
- [AD 93-02-07](https://openairdocs.org/ad/93-02-07): Vertical Fin Spar · Bell Helicopter Textron 412. Effective Mar 22, 1993
- [AD 92-13-10](https://openairdocs.org/ad/92-13-10): Tail Rotor Driveshaft Hanger Bearing · Bell Helicopter Textron 204B, 205A, 205A-1 and 3 more. Effective Feb 23, 1993
- [AD 92-09-05](https://openairdocs.org/ad/92-09-05): Torque Adapter · Bell Helicopter Textron 212 and 412. Effective Jun 2, 1992
- [AD 90-03-09](https://openairdocs.org/ad/90-03-09): T/R Hub Assembly  (See 90-03-09) · Bell Helicopter Textron 205A, 205A-1, 212 and 1 more. Effective Feb 13, 1990
- [AD 89-08-05](https://openairdocs.org/ad/89-08-05): Transmission Internal Sump Oil Filter · Bell Helicopter Textron 204B, 205A, 205A-1 and 2 more. Effective Jan 3, 1990
- [AD 85-07-01](https://openairdocs.org/ad/85-07-01): Main Rotor Pitch Horn · Bell Helicopter Textron 412. Effective Apr 10, 1985
- [AD 82-26-51 R1](https://openairdocs.org/ad/82-26-51-R1): Yoke Assemblies Service Time · Bell Helicopter Textron 412. Effective Dec 2, 1983
- [AD 86-16-11 L](https://openairdocs.org/ad/86-16-11-L): Inspect T/R Hub Assembly  (See 90-03-09) · Bell Helicopter Textron 412

Historical (superseded or no longer in force):

- [AD 2021-23-13](https://openairdocs.org/ad/2021-23-13) (historical): Ground Proximity System · Airbus Helicopters K-225, K-190A, K-240 and 237 more. Effective Dec 9, 2021
- [AD 2018-17-01](https://openairdocs.org/ad/2018-17-01) (historical): Engine Oil System and Aircraft Fuel System · Bell Helicopter Textron 212, 412, 412CF and 1 more. Effective Sep 5, 2018
- [AD 2017-15-02](https://openairdocs.org/ad/2017-15-02) (historical): Engine Oil System and Aircraft Fuel System · Bell Helicopter Textron 212 and 412. Effective Aug 4, 2017
- [AD 2015-04-04](https://openairdocs.org/ad/2015-04-04) (historical): AC Inverter · Bell Helicopter Textron 412 and 412EP. Effective Mar 11, 2015
- [AD 2011-12-08](https://openairdocs.org/ad/2011-12-08) (historical): Tail rotor (T/R) blades · Bell Helicopter Textron 205A, 205A-1, 205B and 4 more. Effective Jul 5, 2011
- [AD 2009-05-09](https://openairdocs.org/ad/2009-05-09) (historical): Main rotor yoke · Bell Helicopter Textron 412, 412CF and 412EP. Effective Mar 31, 2009
- [AD 2008-10-03](https://openairdocs.org/ad/2008-10-03) (historical): Tail rotor blade assembly · Bell Helicopter Textron 204B, 205A, 205A-1 and 6 more. Effective May 21, 2008
- [AD 2007-19-53](https://openairdocs.org/ad/2007-19-53) (historical): Tail rotor blade (blade) · Bell Helicopter Textron 204B, 205A, 205A-1 and 6 more. Effective Dec 5, 2007
- [AD 2002-09-04](https://openairdocs.org/ad/2002-09-04) (historical): Tip Block and Tip Closure · Bell Helicopter Textron 205A, 205A-1, 205B and 4 more. Effective Jun 7, 2002
- [AD 2000-25-03](https://openairdocs.org/ad/2000-25-03) (historical): Main Rotor Actuator Locking Washer · Bell Helicopter Textron 205A-1, 205B, 212 and 2 more. Effective Dec 28, 2000
- [AD 2000-18-09](https://openairdocs.org/ad/2000-18-09) (historical): Tailboom Attachment Cap Angle · Bell Helicopter Textron 412, 412CF and 412EP. Effective Sep 28, 2000
- [AD 98-07-03](https://openairdocs.org/ad/98-07-03) (historical): Tail Rotor Yoke Assembly · Agusta AB412 and 412. Effective Apr 8, 1998

## Information bulletins (advisory) (5)

- [SAIB SW-08-42](https://openairdocs.org/saib/SW-08-42): Emergency Float with Liferaft Kits (kits). Issued Aug 27, 2008
- [SAIB SW-07-29](https://openairdocs.org/saib/SW-07-29): High skid gear crosstubes. Issued Apr 18, 2007
- [SAIB SW-05-47](https://openairdocs.org/saib/SW-05-47): . Issued Apr 5, 2005
- [SAIB SW-05-10R1](https://openairdocs.org/saib/SW-05-10R1): . Issued Nov 30, 2004
- [SAIB SW-05-10](https://openairdocs.org/saib/SW-05-10) (historical): . Issued Nov 5, 2004

## Registered aircraft

None registered with this model now.

## NTSB investigations

None matched to aircraft with this model.

## FAA accident and incident reports

None matched to aircraft with this model.

## Service difficulty reports (4,516, newest 50)

As reported by operators and repair stations, by the model named in the report.

- [SDR CA190715012](https://openairdocs.org/sdr/CA190715012), Jul 10, 2019: WIRE. MISSING. (CAN) DURING FLIGHT TEST. CHSP CASS MESSAGE APPEARED IN FLIGHT. TROUBLESHOOT FOUND 1 WIRE MISSING (BUT NOT RELATED) (TC# 20190715012)
- [SDR QMLA2019040279034](https://openairdocs.org/sdr/QMLA2019040279034), Mar 27, 2019: PANEL. DELAMINATED. R/H TAILBOOM PANEL P/N 205 032 811 077 OUTER SKIN DELAMINATED APPROX. 24” X 3.5” BETWEEN BOOM STATIONS 77-101 WL 72.L/H TAILBOOM PANEL P/N H205 032 813 67 OUTER
- [SDR 9EKA20160714008](https://openairdocs.org/sdr/9EKA20160714008), Jul 13, 2016: PAN. CRACKED. AIRCRAFT RETURNED FROM AN MOC FLIGHT FOLLOWING A 300 HOUR / 12 MONTH INSPECTION AND UPON SHUTDOWN, THE PILOT NOTICED THAT THE UPPER PLANETARY GEAR OF THE MAIN T
- [SDR QMLA2016032216027](https://openairdocs.org/sdr/QMLA2016032216027), Mar 22, 2016: SKIN. CRACKED. AT SHIFT CHANGE, DURING PRE-FLIGHT OF ACFT NOTED A CRACK IN SKIN ON RT SIDE OF VERTICAL FIN IN THE SHAPE OF A BACKWARD C OF ABOUT 5 INCHES, AFTER MEASUREMENT PO
- [SDR CA151110008](https://openairdocs.org/sdr/CA151110008), Nov 3, 2015: FILTER. FAILED. (CAN) DURING A ROUTINE 100 HR P3 FILTER INSPECTION THE ENGINEER REMOVED THE P3 FILTER FROM THE POWER SECTION AND NOTICED THE SCREEN MATERIAL HAD SEPARATED FROM 
- [SDR 2015FA0000442](https://openairdocs.org/sdr/2015FA0000442), Sep 9, 2015: ELECTRICAL BOX. FAILED. MFG WAS CONTACTED AND ADVISED THAT A HOIST, PN 42325-12-3, EXPERIENCED AN UNCOMMANDED REEL OUT DURING A LIVE LOAD LIFTING OPERATION. EVALUATED THE SYSTEM AND DE
- [SDR CA150826001](https://openairdocs.org/sdr/CA150826001), Aug 11, 2015: SCREW. SHORT. (CAN) MAIN GEARBOX, PN 412-040-002-103, NOTE THAT SECTION 8 OF THIS FORM WOULD NOT ACCEPT THE MFG INFO AND THEREFORE WOULD NOT SAVE. LOW OIL INDCATION OBSERVED 
- [SDR CA150813004](https://openairdocs.org/sdr/CA150813004), Jul 11, 2015: BOOT. DISINTEGRATED. (CAN) ACFT HAD A HARD LANDING AFTER A MAIN DRIVESHAFT COUPLING FAILURE. DURING THE INVESTIGATION IT WAS NOTED THERE WAS A HIGH POSSIBILITY OF A DRIVE SHAFT BOOT
- [SDR CA150325021](https://openairdocs.org/sdr/CA150325021), Mar 19, 2015: PACKING. LEAKING. (CAN) DURING A ROUTINE PASSENGER FLIGHT, AT FULL THROTTLE, AN OIL PRESSURE CAUTION WARNING CAME ON FOLLOWED BY AN ITT SURGE ABOVE 900 DEG C. CREW ELECTED TO SHU
- [SDR 2015FA0000004](https://openairdocs.org/sdr/2015FA0000004), Jan 12, 2015: BARREL NUT. CRACKED. 1 OF 4 BARREL NUTS THAT ATTACH THE TAILBOOM TO THE AIRFRAME WAS FOUND TO BE CRACKED ACROSS THE THREADS ON 2 SIDES. THE NUT HAD BEEN REMOVED AS PART OF A MAJOR I
- [SDR CA141024027](https://openairdocs.org/sdr/CA141024027), Oct 15, 2014: DRIVE SHAFT. CRACKED. (CAN) FUEL PUMP, PN 025277-300, SN PE5971 WAS REMOVED FOR 300 HR INSPECTION IAW MM TABLE 601. UPON INSPECTION, THE MAINTENANCE TECH NOTICED THAT THERE WAS A CRA
- [SDR CA140710003](https://openairdocs.org/sdr/CA140710003), Jul 8, 2014: TORQUE TUBE. SHEARED. (CAN) DURING A NORMAL APPROACH OF 75% TORQUE THE PILOT NOTICED THE MAST TORQUE INCREASE TO OVER 110% WHILE THE ENGINE TORQUES REMAINED UNCHANGED. HE LANDED IN A
- [SDR CA140305006](https://openairdocs.org/sdr/CA140305006), Mar 5, 2014: BEARING. FAILED. (CAN) ON A COMBINING GEAR BOX REMOVAL, AME NOTICED A LARGE AMOUNT OF BLACK FRETTING MATERIAL BETWEEN THE C BOX AND BLOWER JOINT FLANGE. ONCE CLEANED UP THE AME 
- [SDR CA140224024](https://openairdocs.org/sdr/CA140224024), Feb 13, 2014: BEARING. FAILED. (CAN) ON C BOX REMOVAL THE OIL COOLER BLOWER ON NR 2 SIDE HAD BOTH FWD AND REAR BEARINGS BEGINNING TO FAIL. GREASE HAD BEEN EJECTED FROM FWD BEARING ALONG WITH 
- [SDR CA131118007](https://openairdocs.org/sdr/CA131118007), Nov 7, 2013: BLADE. FRACTURED. (CAN) DURING POSITIONING PHASE JUST BEFORE LANDING, A SUDDEN DROP IN NR 1 ENGINE TORQUE OCCURRED. THE ACFT LANDED ON THE TAXI WAY. ENGINE PARAMETERS AFTER LANDI
- [SDR CA131004007](https://openairdocs.org/sdr/CA131004007), Oct 1, 2013: BOLT. SHEARED. (CAN) 25HR AIR CONDITIONING INSPECTION C/O, LT CONDENSOR BLOWER MOTOR ATTACHMENT BOLT, 1 OF 3, WAS FOUND SHEARED AT MOTOR CASE. THIS IS THE THIRD OCCURRENCE OF 
- [SDR CA131007008](https://openairdocs.org/sdr/CA131007008), Sep 29, 2013: FUEL HEATER. LEAKING. (CAN) SIGNIFICANT FUEL LEAK NOTED ON NR 1 ENGINE DURING GROUND OPERATIONS. LEAK CONFIRMED AS CRACKED WELD ON OIL TO FUEL HEATER.
- [SDR QMLA2013082213122](https://openairdocs.org/sdr/QMLA2013082213122), Aug 22, 2013: WARNING LIGHT. FALSE ACTIVATION. NR 1 ENGINE MASTER CAUTION LIGHT ILLUMINATED REPEATEDLY IN FLIGHT. NR 1 ENGINE GAUGE SHOWED OIL PRESSURE BOTTOM GREEN/TOP YELLOW AND THE TEMP SHOWED TOP OF GREE
- [SDR CA130726004](https://openairdocs.org/sdr/CA130726004), Jul 19, 2013: BLADE. DEBONDED. (CAN) WHILE CARRYING OUT A 25 HOUR INSPECTION, PERFORMED A TAP TEST WITH A BELL TAP HAMMER, FOUND THE EROSION STRIP PARTIALLY DEBONDED. TAIL ROTOR HUB AND BLADE
- [SDR CA130128024](https://openairdocs.org/sdr/CA130128024), Jan 28, 2013: WIRE. CHAFED. (CAN) PILOT REPORTED LATERAL CYCLIC IMPULSES FELT IN ALL FLIGHT REGIMES WITH AUTO PILOT SELECTED ON ONLY. EXTENSIVE TROUBLESHOOTING WAS CARRIED OUT OVER A 3 WEE
- [SDR CA121115006](https://openairdocs.org/sdr/CA121115006), Nov 10, 2012: LINK. FAILED. (CAN) DURING 600 HR INSPECTION OF ACFT, LIFT LINK BEARINGS WERE FOUND SPINNING WITHIN BORE. OEM HAS NO REQUIRED INSPECTION OF THIS COMPONENT AND THIS IS NOT AN 
- [SDR EOPA20121022397](https://openairdocs.org/sdr/EOPA20121022397), Oct 18, 2012: HOUSING. CRACKED. ON INSPECTION, AN OIL LEAK WAS DISCOVERED IN THE COMBINED GEARBOX AREA. ON FURTHER INSPECTION THE NR 1 ENGINE CHIP DETECTOR HSG ATTACHED TO THE GEARBOX WAS FOUN
- [SDR ALGA2012101101](https://openairdocs.org/sdr/ALGA2012101101), Oct 8, 2012: NUT. CORRODED. NUT FOUND UNSERVICEABLE DUE TO EXCESSIVE CORROSION.
- [SDR CA120919001](https://openairdocs.org/sdr/CA120919001), Sep 8, 2012: TURBINE WHEEL. FRACTURED. (CAN) IN FLIGHT SHUTDOWN. PILOT REPORTED THAT WHILE PULLING POWER, HE HEARD A SERIES OF NOISES, FOLLOWED BY A SHUDDER AND VIBRATION. THE RESULT OF THIS WAS A DE
- [SDR CA120824003](https://openairdocs.org/sdr/CA120824003), Aug 22, 2012: TRANSISTOR. FAILED. (CAN) WHEN THE DIM FUNCTION ON THE CONSOLE IS UTILIZED FOR THE INSTRUMENT LIGHTING, THE CIRCUIT BREAKER TRIPS. TRANSISTOR, PN 130-007-1 USED IN THE SYS HAS FOUN
- [SDR ALGA2012061805](https://openairdocs.org/sdr/ALGA2012061805), Jun 18, 2012: SUPPORT CASE. CRACKED. CRACKED SUPPORT CASE.
- [SDR CA120615002](https://openairdocs.org/sdr/CA120615002), Jun 14, 2012: WIRE HARNESS. CHAFED. (CAN) DURING INSPECTION, IT WAS NOTICED THAT TWO WIRE BUNDLES WERE CHAFING AGAINST EACH OTHER. THE WIRE BUNDLES ARE LOCATED IN THE UPPER LT DOOR POST. WHEN THE 
- [SDR ALGA2012061202](https://openairdocs.org/sdr/ALGA2012061202), Jun 12, 2012: FLANGE. CORRODED. FLANGE, CORROSION BEYOND LIMITS.
- [SDR CA120612009](https://openairdocs.org/sdr/CA120612009), Jun 8, 2012: MAGNETIC BRAKE. NO TEST. (CAN) AS PART OF A DAILY MAINTENANCE INSPECTION THE FORCE TRIM RELEASE OF THE YAW MAGNETIC BRAKE ASSY WAS TESTED. THE MECHANIC WAS ABLE TO DETECT THAT THE BRAKE
- [SDR CA120608011](https://openairdocs.org/sdr/CA120608011), Jun 5, 2012: CONNECTOR. DISCONNECTED. (CAN) WHILE IN CONFINED SPACE, FORCE TRIM OFF, PILOT FELT PEDALS BIND AND COULD NOT INPUT MORE TAIL ROTOR CONTROL. IT THEN BROKE LOOSE AND NORMAL FEEL WAS ESTAB
- [SDR CA120511006](https://openairdocs.org/sdr/CA120511006), May 9, 2012: TUBE. LEAKING. (CAN) THE PILOT NOTICED THE NR1 HYDRAULIC SIDE RESEVOIR WAS NEARLY EMPTY ON SHUTDOWN AND HYDRAULIC FLUID LEAKING ON SPOT. MAINTENANCE WAS NOTIFIED. UPON INVESTI
- [SDR CA120430012](https://openairdocs.org/sdr/CA120430012), Apr 26, 2012: SEAL. CRACKED. (CAN) CARRYING OUT INSPECTION OF MAIN TRANSMISSION OIL LEVEL, IT WAS DISCOVERED THAT THE QTY WAS LOW. A GROUND RUN AND LEAK CHECK WAS PERFORMED AND FOUND THAT T
- [SDR ALGA2012042402](https://openairdocs.org/sdr/ALGA2012042402), Apr 24, 2012: BEARING. WORN. BEARING WORN AND CORRODED BEYOND LIMITS.
- [SDR CA120312024](https://openairdocs.org/sdr/CA120312024), Mar 12, 2012: GEAR. FAILED. (CAN) DURING HEAVY MAINTENANCE OF A CH146, 3000HR/5 YEAR INSPECTION IT WAS NOTICED THAT THE CHAIN FOR THE RGB FILLER CAP AND ADAPTER PN 212-062-504-001 HAD DETA
- [SDR ALGA20122281215](https://openairdocs.org/sdr/ALGA20122281215), Feb 28, 2012: NUT. CORRODED. PITTING CORROSION BEYOND LIMITS.
- [SDR ALGA20122281214](https://openairdocs.org/sdr/ALGA20122281214), Feb 28, 2012: MAST. CORRODED. MAST CORRODED BEYOND LIMITS.
- [SDR CA120213007](https://openairdocs.org/sdr/CA120213007), Feb 10, 2012: TRIM SWITCH. INTERMITTENT. (CAN) PILOT REPORTED, ATT MODE-ERRATIC PITCH. DISCUSSION WITH THE PILOT REVEALED THAT THE PROBLEM OCCURED IN THE DECENT AND IN ATT MODE. THE PILOT STATED THAT H
- [SDR ALGAR5493122711](https://openairdocs.org/sdr/ALGAR5493122711), Dec 27, 2011: FLOOR PANEL. SEPARATED. FLOOR PANEL DEBONDED AND SEPARATED BEYOND LIMITS.
- [SDR ALGAR5501122711](https://openairdocs.org/sdr/ALGAR5501122711), Dec 27, 2011: FLOOR PANEL. CORRODED. (9Y-BC, EXPORTED AIRCRAFT) FLOOR PANEL CORRODED BEYOND LIMITS IAW BHT-SRM-ALL.
- [SDR CA111130009](https://openairdocs.org/sdr/CA111130009), Nov 23, 2011: TRANSDUCER. FAILED. (CAN) PILOT REPORTED PEDAL FEEDBACK DURING FLIGHT. FEEDBACK DISAPPEARED BELOW 40 KTS. MAINTENANCE REPORTED, TAIL ROTOR SCAS TUBE P/N 7018078 & NO. 1 YAW CMT P/N
- [SDR CA111101003](https://openairdocs.org/sdr/CA111101003), Oct 31, 2011: RELIEF VALVE. STUCK. (CAN) TRANSMISSION THERMAL RELIEF VLV PN 205-060-512-003, FOUND STUCK OPEN & WORN DURING 3000 HR INSPECTION OF BELL 412CF. VLV WAS REMOVED TO REPLACE GASKET & U
- [SDR CA111026006](https://openairdocs.org/sdr/CA111026006), Oct 26, 2011: BEARING. DELAMINATED. (CAN) BEARING FOUND DELAMINATED DURING DAILY INSPECTION.
- [SDR CA111014001](https://openairdocs.org/sdr/CA111014001), Aug 25, 2011: BEARING. DELAMINATED. (CAN) BEARING FOUND DELAMINATED AROUND FULL CIRCUMFERENCE OF BEARING ASSY.
- [SDR CA110826008](https://openairdocs.org/sdr/CA110826008), Aug 24, 2011: BEARING. DELAMINATED. (CAN) DURING A 25 HR/30 DAY SCHEDULED INSPECTION, MAINTENANCE PERSONNEL FOUND THE DAMPER BEARING, LOCATED ON THE INBOARD SIDE OF THE SPINDLE ASSEMBLY TO BE COMP
- [SDR CA110803012](https://openairdocs.org/sdr/CA110803012), Jul 21, 2011: BLEED VALVE. STUCK. DURING FINAL APPROACH, THE PILOT DECLARED EMERGENCY AFTER PERFORMING A PRECAUTIONARY SHUTDOWN OF THE ENGINE DUE TO OBSERVED HIGH TEMPERATURE. AN UNEVENTFUL SING
- [SDR CA110722005](https://openairdocs.org/sdr/CA110722005), Jul 21, 2011: BLEED VALVE. STUCK. ON APPROACH, THE CREW NOTICED THAT THEY HAD ZERO TORQUE INDICATION AND HIGH ITT ON ENGINE NR1. THE CREW SHUTDOWN THE NR 1 ENGINE AND LANDED WITHOUT FURTHER INCI
- [SDR CA110602007](https://openairdocs.org/sdr/CA110602007), May 31, 2011: RADAR. INTERMITTENT. PILOT REPORTED, "WX RADAR- DIM IMAGE AND GOING INTO "WAIT" MODE. THIS OCCURED DURING HEAVY RAIN. RADAR TURNED OFF RTB." AVIONCS PERSONNEL WERE ABLE TO REPRODUCE
- [SDR CA110527005](https://openairdocs.org/sdr/CA110527005), May 26, 2011: DAMPER. DELAMINATED. UPON RETURNING FROM THE FLIGHT, THE PILOT ADVISED MX OF "LATERAL VIBE IN HELICOPTER. VERY NOTICEABLE AT HIGH POWER SETTINGS." UPON INSP, MX HAD FOUND THAT THE D
- [SDR EOPA020211397AL](https://openairdocs.org/sdr/EOPA020211397AL), Feb 2, 2011: FRAME. CRACKED. FRAME WAS FOUND CRACKED AT APPROX STA 78 IN TAILBOOM ABOVE BAGGAGE COMPARTMENT.
- [SDR 2011F00024](https://openairdocs.org/sdr/2011F00024), Jan 28, 2011: BLADE. DELAMINATED. M/R BLADE T/E "WEDGE" CAME DEBONDED. REMOVED REMAINING PORTION OF WEDGE AND TOUCHED UP PAINT IAW MFG PRODUCT SUPPORT ENGINEERING.

All 4,516: https://openairdocs.org/model/bell-helicopter-textron-canada-412/reports.md

## STCs that may be installed (OpenAirDocs) (383, first 50)

Approved for this model: the STC's model list names it on its data sheet, or a series that includes it. In force first, then newest. The registry doesn't record which STCs an aircraft has.

- [STC SR01928NY](https://openairdocs.org/stc/SR01928NY): Installation of emergency float system. Leonardo Helicopters US Corporation
- [STC SR12427IB](https://openairdocs.org/stc/SR12427IB): Installation of an AEM MTP136D Panel Mount FM Transceiver. Anodyne Electronics Manufacturing Corporation
- [STC SR02736NY](https://openairdocs.org/stc/SR02736NY): Installation of Utility Basket on the right hand side. Alpine Aerotech Ltd
- [STC SR02270SE](https://openairdocs.org/stc/SR02270SE): Fabrication and installation of Geneva Aviation Audio System. AEM USA Inc
- [STC SR02444SE](https://openairdocs.org/stc/SR02444SE): Installation of P178 Failsafe Audio Mixer. AEM USA Inc
- [STC SR12332SE](https://openairdocs.org/stc/SR12332SE): Installation of Mechanical Specialties, LLC Human External Cargo (HEC) and non-HEC Hook System. Mechanical Specialties, LLC
- [STC SH3261SO](https://openairdocs.org/stc/SH3261SO): Installation of replacement skid tubes. Bell Helicopter Textron Inc
- [STC SR12148LA](https://openairdocs.org/stc/SR12148LA): Installation of modified configurations of the Bell Helicopter Textron (BHT) Model 412 “Arm and Bearing Assembly”. Extex Engineered Products
- [STC SR04465NY](https://openairdocs.org/stc/SR04465NY): Installation of the iPad Mount. Avio Design Group Inc
- [STC SR00258DE](https://openairdocs.org/stc/SR00258DE): Installation of an articulating patient loading system. Air Methods LLC
- [STC SR09922AC](https://openairdocs.org/stc/SR09922AC): Installation of a Foresight MX Condition Monitoring System. GPMS International Inc
- [STC SR12068IB](https://openairdocs.org/stc/SR12068IB): Installation of the AFI4700 Electronic Flight Instrument. Alpine Aerotech LP
- [STC SR12072IB](https://openairdocs.org/stc/SR12072IB): Manufacturing and Installation of Cargo Hold Nets; Maintenance must be in accordance with ICARUS Aero Inc. Instructions for Continued Airworthiness as shown on the attached FAA AML No. SR12072IB. Icarus Aero Inc
- [STC SH8610SW](https://openairdocs.org/stc/SH8610SW): Fabrication of Isolair Eliminator II Model 4600-212/412 Fire Fighting System. Isolair Inc
- [STC SR02590AK](https://openairdocs.org/stc/SR02590AK): Installation of Bell Lightweight Tailboom Modification. StandardAero Atlantic USA Inc
- [STC SR00032DE-D](https://openairdocs.org/stc/SR00032DE-D): Installation of an Air Methods Corporation Emergency Medical System Interior that provides (3) three patient locations to be configured one of two ways using an Intensive Care Transport Litter (ICTL) and Ferno stretchers. Air Methods LLC
- [STC SR00107DE-D](https://openairdocs.org/stc/SR00107DE-D): Installation of an Air Methods, LLC, Emergency Medical System interior. Air Methods LLC
- [STC SR00113DE-D](https://openairdocs.org/stc/SR00113DE-D): lnstallation of an Air Methods, LLC, Emergency Medical System interior. Air Methods LLC
- [STC SR00118DE-D](https://openairdocs.org/stc/SR00118DE-D): Installation of a standby attitude indicator battery annunciator system. Air Methods LLC
- [STC SR00855DE](https://openairdocs.org/stc/SR00855DE): Installation of Tracking Patient Loading System. Air Methods LLC
- [STC SR04132CH](https://openairdocs.org/stc/SR04132CH): Installation of Heli-Preheat Kit, p/n TA3132-1 for 115 volt application in accordance with Heli-Preheat Kit drawing TA3132-1 Revision G, dated December 11, 2023 or later FAA approved revisions and Preheat Kit Installation Instruction TNH3132 Revision C, dated November 7, 2023 or later FAA approved revisions. HARTZELL PROPELLER LLC
- [STC SR01779LA](https://openairdocs.org/stc/SR01779LA): Installation of the Emergency Float Kits. Dart Aerospace ULC
- [STC SH1415SO](https://openairdocs.org/stc/SH1415SO): Installation of Wire Strike Protection system; Configuration #1 - Installation P/N 364-83300-5 (Standard Skid Gear) or P/N 364-83300-7 (High Skid Gear). Magellan Aerospace
- [STC SH3894SW](https://openairdocs.org/stc/SH3894SW): Installation of 9-place forward facing airline seats. Bell Textron Inc
- [STC SR09343RC](https://openairdocs.org/stc/SR09343RC): Installation of Aero Seats and Systems, Inc., Life Raft Deployment System (LRDS). Bell Textron Inc
- [STC SR00145IB](https://openairdocs.org/stc/SR00145IB): Installation of LH and RH Vertical Reference Door(s). Transwest Helicopters Ltd
- [STC SR00142IB](https://openairdocs.org/stc/SR00142IB): Installation of the Integrated Health and Usage Monitoring System (HUMS). RMCI Canada Inc
- [STC SR00141IB](https://openairdocs.org/stc/SR00141IB): Installation of the Aft Pedestal Stowage Compartment. Alpine Aerotech LP
- [STC SH4056NM](https://openairdocs.org/stc/SH4056NM): Installation of pneumatic door actuators. Dart Aerospace USA Inc
- [STC SH3319NM](https://openairdocs.org/stc/SH3319NM): Installation of Precise Flight Pulselite Control Unit in the Landing /Taxi Recognition Visual Control Light system,. Precise Flight Inc
- [STC SR00871LA](https://openairdocs.org/stc/SR00871LA): Installation of the Modular Seating System. LifePort LLC
- [STC SR00080IB](https://openairdocs.org/stc/SR00080IB): Installation of the Garmin GRA 55 Radar Altimeter. Alpine Aerotech LP
- [STC SR03832NY](https://openairdocs.org/stc/SR03832NY): Installation of Full Vertical Reference Door P/N D412-761 for Left Hand Vertical Reference Operations. Dart Aerospace Limited
- [STC SH1543GL](https://openairdocs.org/stc/SH1543GL): Remove skid landing gear replacing same with a fixed (non-retracting), wheeled, tricycle landing gear. Kaman Corporation Aircraft Wheel and Brake LLC
- [STC SH1651GL](https://openairdocs.org/stc/SH1651GL): Remove skid landing gear replacing same with a fixed (non-retracting), wheeled, tricycle landing gear. Kaman Corporation Aircraft Wheel and Brake LLC
- [STC SR00058IB](https://openairdocs.org/stc/SR00058IB): Installation of J301A Audio Controller. Alpine Aerotech LP
- [STC SR00047IB](https://openairdocs.org/stc/SR00047IB): Installation of VIH Aerospace (VIHA) Pulse Light. VIH Aerospace Inc
- [STC SR02590SE](https://openairdocs.org/stc/SR02590SE): Installation of a Light Emitting Diode (LED) Annunciator Panel. Luma Technologies LLC
- [STC SR00035IB](https://openairdocs.org/stc/SR00035IB): Installation of the Garmin GTS 8xx Traffic System. Alpine Aerotech LP
- [STC SH7860SW](https://openairdocs.org/stc/SH7860SW): Installation of a Lucas or Breeze externally mounted rescue hoist. AEM USA Inc
- [STC SR04615NY](https://openairdocs.org/stc/SR04615NY): Installation of the Human External Cargo (HEC) Suspension Line Kit. Boost Human External Cargo Systems Inc
- [STC SR04616NY](https://openairdocs.org/stc/SR04616NY): Installation of the Dual HEC Hook System Provisions is to be performed. Boost Human External Cargo Systems Inc
- [STC SR00713SE](https://openairdocs.org/stc/SR00713SE): Installation of Onboard Systems International Cargo Hook Kit. Onboard Systems International
- [STC SR01634SE](https://openairdocs.org/stc/SR01634SE): Installation of a Supplemental Lighting System. Aviation Specialties Unlimited Inc
- [STC SR01459LA](https://openairdocs.org/stc/SR01459LA): Installation of Apical Industries, Inc Emergency Mid-Float with 10-man Life Raft kits. Dart Aerospace ULC
- [STC SR04663NY](https://openairdocs.org/stc/SR04663NY): Installation of the Center Pedestal Riser. Alpine Aerotech LP
- [STC SH5707NM](https://openairdocs.org/stc/SH5707NM): Fabrication of Onboard Systems Model 200-088-03 or 200-088-04 (without Load Weight) or 200-089-03, -04, -05 or -06 (with Load Weight) cargo hook suspension systems. Onboard Systems International
- [STC SH5737NM](https://openairdocs.org/stc/SH5737NM): Replacement of Bell magnesium cargo hook bumper and ring Part Nos. 204-072-901-1 or -3, and 204-072-905-3, respectively, with Onboard bumper ring kit No. 210-092-00. Fabrication of Onboard Systems Model 210-092-00 bumper ring kit. Onboard Systems International
- [STC SH5758NM](https://openairdocs.org/stc/SH5758NM): Fabrication of the Onboard Model 200-095-00 Multi-Channel Electrical Slip-Ring Kit. Onboard Systems International
- [STC SR00277SE](https://openairdocs.org/stc/SR00277SE): Fabrication of Onboard Systems Model 528-002-00 or 528-002-01 cargo hook. Onboard Systems International LLC

All 383: https://openairdocs.org/model/bell-helicopter-textron-canada-412/stcs.md

## PMA parts (OpenAirDocs) (over 1,000, first 50)

Current parts manufacturer approvals (PMA): parts the FAA has approved companies to make as replacements or modifications. Each record lists its models as free text; OpenAirDocs matched them to this model on its data sheet, so check the FAA record before relying on it. Newest first.

- [412AC-106-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID158876839020260923123952.0001): Instl – 412/412SP – (General Arrangement-412 Air Conditioner (Gnd Cooling Opt / Aft Loc). Air Comm Corporation · PMA PQ0072NM · Modification part · Aug 31, 2026
- [412AC-102-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID136598026020260923123951.0001): Instl – 412/412SP (Non-NVIS) – (General Arrangement – 412 Air Conditioner (Temp Control)). Air Comm Corporation · PMA PQ0072NM · Modification part · Aug 31, 2026
- [412AC-102-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID121943153420260923123951.0001): Instl – 412/412SP (NVIS) – (General Arrangement – 412 Air Conditioner (Temp Control)). Air Comm Corporation · PMA PQ0072NM · Modification part · Aug 31, 2026
- [650-430-100-100](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID172240988120260512112135.0001): MECHANICAL SPECIALTIES, LLC MODEL 650-430-100-100ADVANCED DUEL EXTERNAL CARGO HOOK /ADEC™HOOK SYSTEM. Mechanical Specialties LLC · PMA PQ2180NM · Modification part · Apr 29, 2026
- [4RP-340-102-101](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID196661250520260107201331.0001): Boot. Able Aerospace Services, Inc. · PMA PQ2487NM · Replaces 412-340-102-101 · Jan 5, 2026
- [2AA-040-176-101](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID172820589720260107201332.0001): Boot. Able Aerospace Services, Inc. · PMA PQ2487NM · Replaces 212-040-176-101 · Jan 5, 2026
- [4AA-340-100-101](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID152078796720260107201327.0001): Seal. Able Aerospace Services, Inc. · PMA PQ2487NM · Replaces 412-340-100-101 · Jan 5, 2026
- [4AA-010-106-101](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID116074758320260107201331.0001): Bearing. Able Aerospace Services, Inc. · PMA PQ2487NM · Replaces 412-010-106-101 · Jan 5, 2026
- [4AA-010-106-101](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID170958783920260108162806.0001): Bearing. Able Aerospace Services, Inc. · PMA PQ2487NM · Replaces 412-010-106-101 · Dec 15, 2025
- [4AA-340-100-101](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID166585831720260108162801.0001): Seal. Able Aerospace Services, Inc. · PMA PQ2487NM · Replaces 412-340-100-101 · Dec 15, 2025
- [4RP-340-102-101](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID127560116420260108162806.0001): Boot. Able Aerospace Services, Inc. · PMA PQ2487NM · Replaces 412-340-102-101 · Dec 15, 2025
- [2AA-040-176-101](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID114388039520260108162807.0001): Boot. Able Aerospace Services, Inc. · PMA PQ2487NM · Replaces 212-040-176-101 · Dec 15, 2025
- [7244872448](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID114062648220251119194650.0001): Locking CoverLocking Cover. Timberline Aerospace, LLC · PMA PQ05397NM · Modification part · Nov 10, 2025
- [2AA-040-176-101](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID192530062420250930105827.0001): Boot. Able Aerospace Services, Inc. · PMA PQ2487NM · Replaces 212-040-176-101 · Sep 8, 2025
- [4AA-010-106-101](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID161878870620250930105826.0001): Bearing. Able Aerospace Services, Inc. · PMA PQ2487NM · Replaces 412-010-106-101 · Sep 8, 2025
- [4RP-340-102-101](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID151759148320250930105826.0001): Boot. Able Aerospace Services, Inc. · PMA PQ2487NM · Replaces 412-340-102-101 · Sep 8, 2025
- [4AA-340-100-101](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID123322414520250930105821.0001): Seal. Able Aerospace Services, Inc. · PMA PQ2487NM · Replaces 412-340-100-101 · Sep 8, 2025
- [2AA-040-176-101](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID196591846020250731153512.0001): Boot. Able Aerospace Services, Inc. · PMA PQ2487NM · Replaces 212-040-176-101 · Jul 21, 2025
- [4AA-340-100-101](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID181746645720250731153505.0001): Seal. Able Aerospace Services, Inc. · PMA PQ2487NM · Replaces 412-340-100-101 · Jul 21, 2025
- [4RP-340-102-101](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID152047494820250731153511.0001): Boot. Able Aerospace Services, Inc. · PMA PQ2487NM · Replaces 412-340-102-101 · Jul 21, 2025
- [4AA-010-106-101](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID104647218720250731153511.0001): Bearing. Able Aerospace Services, Inc. · PMA PQ2487NM · Replaces 412-010-106-101 · Jul 21, 2025
- [4RP-340-102-101](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID190350209420250618184754.0001): Boot. Able Aerospace Services, Inc. · PMA PQ2487NM · Replaces 4RP-340-102-101 · May 6, 2025
- [4AA-340-100-101](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID125688476920250618184750.0001): Seal. Able Aerospace Services, Inc. · PMA PQ2487NM · Replaces 412-340-100-101 · May 6, 2025
- [4AA-010-106-101](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID120272222320250618184754.0001): Bearing. Able Aerospace Services, Inc. · PMA PQ2487NM · Replaces 4AA-010-106-101 · May 6, 2025
- [2AA-040-176-101](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID112528956720250618184755.0001): Boot. Able Aerospace Services, Inc. · PMA PQ2487NM · Replaces 2AA-040-176-101 · May 6, 2025
- [16305](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID195975217920250312124255.0001): Block, VeloMount, Tri- Axial B212/412. Diagnostic Solutions International, LLC · PMA PQ05321NM · Modification part · Mar 3, 2025
- [16263](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID191818567620250312124251.0001): Bracket, ICP B212/412 IGB. Diagnostic Solutions International, LLC · PMA PQ05321NM · Modification part · Mar 3, 2025
- [3103](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID188677664720250312124223.0001): Interrupter. Diagnostic Solutions International, LLC · PMA PQ05321NM · Modification part · Mar 3, 2025
- [16296](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID188069842620250312124255.0001): Bracket, ICPDriveshaft Balance. Diagnostic Solutions International, LLC · PMA PQ05321NM · Modification part · Mar 3, 2025
- [14320](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID184861645820250312124242.0001): Cable Assy, Pigtail, HighTempAccelerometer. Diagnostic Solutions International, LLC · PMA PQ05321NM · Modification part · Mar 3, 2025
- [16240](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID179729143620250312124251.0001): Bracket, ICP. Diagnostic Solutions International, LLC · PMA PQ05321NM · Modification part · Mar 3, 2025
- [16295](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID178187762520250312124254.0001): Plate, Tail DisconnectCabin. Diagnostic Solutions International, LLC · PMA PQ05321NM · Modification part · Mar 3, 2025
- [16236](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID177741191820250312124249.0001): Bracket,Connector Mt. B212/412. Diagnostic Solutions International, LLC · PMA PQ05321NM · Modification part · Mar 3, 2025
- [16278](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID175211335320250312124253.0001): Doubler Plate ICP Connector. Diagnostic Solutions International, LLC · PMA PQ05321NM · Modification part · Mar 3, 2025
- [16417](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID173211050720250312124257.0001): Bracket, ICPCables. Diagnostic Solutions International, LLC · PMA PQ05321NM · Modification part · Mar 3, 2025
- [16391](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID170983323920250312124256.0001): Bracket, Mag P/U B212/412. Diagnostic Solutions International, LLC · PMA PQ05321NM · Modification part · Mar 3, 2025
- [16274](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID170399825420250312124252.0001): CableAssembly, ICPAccelerometer. Diagnostic Solutions International, LLC · PMA PQ05321NM · Modification part · Mar 3, 2025
- [16233](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID169851888520250312124249.0001): Assy, PCELL/ICPT/R Bell 212/412. Diagnostic Solutions International, LLC · PMA PQ05321NM · Modification part · Mar 3, 2025
- [8422](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID166213834220250312124227.0001): Brkt, Accelerometer. Diagnostic Solutions International, LLC · PMA PQ05321NM · Modification part · Mar 3, 2025
- [16242](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID164426580120250312124251.0001): Bracket, ICL, Vibrex,Hardwire. Diagnostic Solutions International, LLC · PMA PQ05321NM · Modification part · Mar 3, 2025
- [PL915-16174](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID163906258120250312124315.0001): Kit, VXP Hardwire Installation, Bell 412. Diagnostic Solutions International, LLC · PMA PQ05321NM · Modification part · Mar 3, 2025
- [16727](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID161588517520250312124258.0001): Bracket Mounting. Diagnostic Solutions International, LLC · PMA PQ05321NM · Modification part · Mar 3, 2025
- [16387](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID159405139220250312124255.0001): Cable Assembly, 90 Deg PCELLPigtail Airframe. Diagnostic Solutions International, LLC · PMA PQ05321NM · Modification part · Mar 3, 2025
- [14316](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID159305535620250312124239.0001): Cable Assembly,Pigtail, HighTemp Accelerometer. Diagnostic Solutions International, LLC · PMA PQ05321NM · Modification part · Mar 3, 2025
- [PL915-16176](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID153911246920250312124315.0001): Kit, VXP Hardwire Installation, Bell 412-41. Diagnostic Solutions International, LLC · PMA PQ05321NM · Modification part · Mar 3, 2025
- [16239](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID153274019420250312124249.0001): Cable Assy, Pigtail Velo Pnl Jack 6SA/F. Diagnostic Solutions International, LLC · PMA PQ05321NM · Modification part · Mar 3, 2025
- [15855](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID146185516120250312124247.0001): Accelerometer. Diagnostic Solutions International, LLC · PMA PQ05321NM · Modification part · Mar 3, 2025
- [10494](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID144669923220250312124231.0001): Accelerometer Hi-Temp. Diagnostic Solutions International, LLC · PMA PQ05321NM · Modification part · Mar 3, 2025
- [16386](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID143433443520250312124255.0001): Bracket, ICP,.31 MTG Hole. Diagnostic Solutions International, LLC · PMA PQ05321NM · Modification part · Mar 3, 2025
- [16392](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID141489633720250312124256.0001): Bracket, ICP Hanger BRG1&2 B212/412. Diagnostic Solutions International, LLC · PMA PQ05321NM · Modification part · Mar 3, 2025

All of them: https://openairdocs.org/model/bell-helicopter-textron-canada-412/pma.md

## The same model under other registry codes

Amateur-built copies and renamed makers get their own codes.

- [Bell 412](https://openairdocs.org/model/bell-412): 11 registered aircraft, registry code 1182202
- [Bell 412 RSAF](https://openairdocs.org/model/bell-412-rsaf): 0 registered aircraft, registry code 1182210

---
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.