# Bell Helicopter Textron 206L-4

- Type: Aircraft model (FAA registry)
- Registry code: 1183011
- Manufacturer (registry): BELL HELICOPTER TEXTRON
- Model: 206L-4
- Aircraft type: Rotorcraft
- Category: Rotorcraft
- Engines: 1 · Turbo-shaft
- Seats: 5
- Weight class: Up to 12,499 lb
- Certification: Type certificated
- Data sheet: [TCDS H2SW](https://openairdocs.org/tcds/H2SW) (OpenAirDocs)
- Holder: Bell Textron Canada Limited
- Registered aircraft: 0
- Page: https://openairdocs.org/model/bell-helicopter-textron-206l-4

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 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 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 2023-06-05](https://openairdocs.org/ad/2023-06-05): Tail Rotor Drive Shaft · Bell Textron Canada 206A, 206A-1 (OH-58A), 206B and 5 more. Effective May 19, 2023
- [AD 2022-22-08](https://openairdocs.org/ad/2022-22-08): Main Rotor Blades · Main rotor blade assembly P/N 20633000-101 (Van Horn STC SR02684LA). Effective Dec 23, 2022
- [AD 2022-20-04](https://openairdocs.org/ad/2022-20-04): Tail Rotor Drive Shaft · Bell Textron Canada 206, 206A, 206A-1 (OH-58A) and 6 more. Effective Dec 23, 2022
- [AD 2021-24-15](https://openairdocs.org/ad/2021-24-15): Tail Rotor Drive Shaft · Bell Textron Canada 206L-1, 206L-3 and 206L-4 with STC SH2750NM. Effective Jan 18, 2022
- [AD 2021-19-01](https://openairdocs.org/ad/2021-19-01): Cabin Equipment/Furnishings · Shoulder harness restraint system (Bell Helicopter Textron STC SH2073SO or SH2751SO). Effective Oct 13, 2021
- [AD 2021-15-06](https://openairdocs.org/ad/2021-15-06): Tail Rotor Drive · Bell Textron Canada 206A, 206B, 206L and 3 more. Effective Aug 27, 2021
- [AD 2021-10-08](https://openairdocs.org/ad/2021-10-08): Fuel Quantity Sensor · Bell Textron Canada 206L, 206L-1, 206L-3 and 1 more. Effective Jun 11, 2021
- [AD 2019-08-10](https://openairdocs.org/ad/2019-08-10): Main Rotor Drive System · Bell Helicopter Textron Canada 206A, 206B, 206L and 4 more. Effective Jun 24, 2019
- [AD 2018-25-17](https://openairdocs.org/ad/2018-25-17): Air Conditioning System Wiring · Airbus Helicopters 206A, 206B, 206L and 13 more. Effective Jan 22, 2019
- [AD 2017-05-04](https://openairdocs.org/ad/2017-05-04): Tension Torsion Strap · Bell Helicopter Textron Canada 206A, 206B, 206L and 3 more. Effective Mar 17, 2017
- [AD 2015-17-02](https://openairdocs.org/ad/2015-17-02): Main Rotor Drive System · Bell Helicopter Textron Canada 206L-4, 407, 427 and 1 more. Effective Sep 24, 2015
- [AD 2015-12-02](https://openairdocs.org/ad/2015-12-02): Turbine Section · Bell Helicopter Textron Canada 206L-1, 206L-3 and 206L-4. Effective Jul 14, 2015
- [AD 2014-02-02](https://openairdocs.org/ad/2014-02-02): Main Rotor Blades · Bell Helicopter Textron Canada 206L, 206L-1, 206L-3 and 1 more. Effective Mar 7, 2014
- [AD 2013-25-10](https://openairdocs.org/ad/2013-25-10): Rotorcraft Tailboom · Bell Helicopter Textron Canada 206L, 206L-1, 206L-3 and 1 more. Effective Jan 31, 2014
- [AD 2013-22-21](https://openairdocs.org/ad/2013-22-21): Emergency Flotation Section · Apical Industries, Inc. Emergency Float Kits (Dart Aerospace ULC STC SR01535LA). Effective Dec 13, 2013
- [AD 2013-22-01](https://openairdocs.org/ad/2013-22-01): Main Rotor Drive System · Bell Helicopter Textron Canada 206L-4 and 407. Effective Dec 5, 2013
- [AD 2013-18-06](https://openairdocs.org/ad/2013-18-06): Main Rotor Control · Bell Helicopter Textron Canada 206A, 206B, 206L and 10 more. Effective Oct 17, 2013
- [AD 2013-02-01](https://openairdocs.org/ad/2013-02-01): Rotorcraft Servo System · Bell Helicopter Textron Canada 206L, 206L-1, 206L-3 and 1 more. Effective Feb 7, 2013
- [AD 2012-12-11](https://openairdocs.org/ad/2012-12-11): Engine EFT/TOT Indicating System · Supplemental lighting system (Aviation Specialties Unlimited STC SR01383SE). Effective Jul 24, 2012
- [AD 2012-02-51](https://openairdocs.org/ad/2012-02-51): Main rotor blades · Bell Helicopter Textron Canada 206L, 206L-1, 206L-3 and 1 more. Effective May 4, 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 2010-26-51](https://openairdocs.org/ad/2010-26-51): Tail rotor blade · Bell Helicopter Textron Canada 206A, 206B, 206L and 10 more. Effective Mar 25, 2011
- [AD 2009-07-52](https://openairdocs.org/ad/2009-07-52): Cyclic control lever assembly · Bell Helicopter Textron Canada 206A, 206A-1 (OH-58A), 206B and 7 more. Effective May 1, 2009
- [AD 2008-14-06](https://openairdocs.org/ad/2008-14-06): Horizontal stabilizers · Bell Helicopter Textron Canada 206L, 206L-1, 206L-3 and 2 more. Effective Aug 14, 2008
- [AD 2008-14-03](https://openairdocs.org/ad/2008-14-03): Tailboom attachment · Bell Helicopter Textron Canada 206A, 206B, 206L and 3 more. Effective Aug 14, 2008
- [AD 2007-01-06](https://openairdocs.org/ad/2007-01-06): Tail rotor blade (blade) · Bell Helicopter Textron Canada 206A, 206B, 206L and 3 more. Effective Feb 13, 2007
- [AD 2005-21-03](https://openairdocs.org/ad/2005-21-03): Tail rotor blade (blade) root doublers (doublers) · Bell Helicopter Textron Canada 206A, 206A-1 (OH-58A), 206B and 5 more. Effective Nov 21, 2005
- [AD 2003-13-14](https://openairdocs.org/ad/2003-13-14): Chip detector · Bell Helicopter Textron Canada 206A, 206A-1 (OH-58A), 206B and 5 more. Effective Aug 12, 2003
- [AD 2002-25-07](https://openairdocs.org/ad/2002-25-07): Tailboom skins · Bell Helicopter Textron Canada 206L, 206L-1, 206L-3 and 1 more. Effective Jan 27, 2003
- [AD 2002-20-05](https://openairdocs.org/ad/2002-20-05): Rescue hoists · Agusta A109, A109A, A109A II and 31 more. Effective Nov 7, 2002
- [AD 2001-20-03](https://openairdocs.org/ad/2001-20-03): Tail Rotor Static Stop Yield Indicator · Bell Helicopter Textron Canada 206L-4. Effective Nov 7, 2001
- [AD 99-17-19](https://openairdocs.org/ad/99-17-19): Mast And Trunnion · Bell Helicopter Textron Canada 206L, 206L-1, 206L-3 and 1 more. Effective Sep 24, 1999
- [AD 99-13-10](https://openairdocs.org/ad/99-13-10): Hydraulic Relief Valve · Bell Helicopter Textron Canada 206L-4. Effective Aug 2, 1999
- [AD 99-13-03](https://openairdocs.org/ad/99-13-03): Collective Idler Link Or Lever · Bell Helicopter Textron Canada 206L-4. Effective Jul 2, 1999
- [AD 95-11-14](https://openairdocs.org/ad/95-11-14): Crosstubes · Bell Helicopter Textron Canada 206A, 206A-1 (OH-58A), 206B and 5 more. Effective Jun 30, 1995
- [AD 94-20-03](https://openairdocs.org/ad/94-20-03): Main Rotor Hub Trunnion · Bell Helicopter Textron Canada 206A, 206B, 206B-1 and 4 more. Effective Oct 11, 1994
- [AD 94-15-07](https://openairdocs.org/ad/94-15-07): Main Rotor Blades · Bell Helicopter Textron Canada 206A, 206B, 206L and 3 more. Effective Aug 26, 1994
- [AD 80-08-04](https://openairdocs.org/ad/80-08-04): Auxiliary Fuel System · Chadwick C-20 auxiliary fuel system (Phoenix Air-Atlanta STC SH129WE or SH139WE). Effective Apr 17, 1980

Historical (superseded or no longer in force):

- [AD 2021-26-08](https://openairdocs.org/ad/2021-26-08) (historical): Tail Rotor Drive Shaft · Bell Textron Canada 206, 206A, 206A-1 and 7 more. Effective Jan 27, 2022
- [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 2009-08-03](https://openairdocs.org/ad/2009-08-03) (historical): Tail rotor blade (blade) · Bell Helicopter Textron 206A, 206B, 206L and 10 more. Effective Apr 24, 2009
- [AD 2009-07-51](https://openairdocs.org/ad/2009-07-51) (historical): Lever assembly bearing · Bell Helicopter Textron 206A, 206A-1 (OH-58A), 206B and 7 more
- [AD 2007-19-52](https://openairdocs.org/ad/2007-19-52) (historical): Tail rotor blade (blade) · Bell Helicopter Textron 206A, 206B, 206L and 10 more. Effective Dec 5, 2007
- [AD 2004-24-08](https://openairdocs.org/ad/2004-24-08) (historical): Tail rotor blade (blade) · Bell Helicopter Textron 206A, 206B, 206L and 3 more. Effective Dec 16, 2004
- [AD 2001-13-51](https://openairdocs.org/ad/2001-13-51) (historical): Driveshafts · Bell Helicopter Textron Canada 206L-4, 407 and 427. Effective Oct 9, 2001
- [AD 99-13-12](https://openairdocs.org/ad/99-13-12) (historical): Tailboom Skin For Cracks Inspection · Bell Helicopter Textron 206L, 206L-1, 206L-3 and 1 more. Effective Jul 9, 1999

## Information bulletins (advisory) (9)

- [SAIB SW-19-05](https://openairdocs.org/saib/SW-19-05): Tail Rotor Drive System, Spline Damage. Issued Apr 4, 2019
- [SAIB SW-18-02](https://openairdocs.org/saib/SW-18-02): Loss of Hardware  Tail Rotor Drive Shaft Couplings. Issued Nov 2, 2017
- [SAIB SW-12-45](https://openairdocs.org/saib/SW-12-45): Garmin Model 400W/500W Series GPS-WAAS Navigation System. Issued Oct 3, 2012
- [SAIB SW-10-42R1](https://openairdocs.org/saib/SW-10-42R1): Emergency Float Kits. Issued Aug 11, 2010
- [SAIB SW-10-42](https://openairdocs.org/saib/SW-10-42) (historical): Emergency Float Kits. Issued Aug 5, 2010
- [SAIB SW-08-42](https://openairdocs.org/saib/SW-08-42): Emergency Float with Liferaft Kits (kits). Issued Aug 27, 2008
- [SAIB SW-05-87](https://openairdocs.org/saib/SW-05-87): . Issued Sep 30, 2005
- [SAIB SW-05-24](https://openairdocs.org/saib/SW-05-24): . Issued Dec 22, 2004
- [SAIB SW-04-92](https://openairdocs.org/saib/SW-04-92): . Issued Sep 30, 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 (709, newest 50)

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

- [SDR EVCA202608250001](https://openairdocs.org/sdr/EVCA202608250001), Aug 24, 2026: BLOWER MOTOR. UNSERVICEABLE. BURNING ELECTRICAL ODOR IN THE CABIN. BLOWER MOTOR UNSERVICABLE.
- [SDR EVCA202606010001](https://openairdocs.org/sdr/EVCA202606010001), Jun 1, 2026: UNKNOWN. ODOR. PILOT DEPARTED BASE WITH NO CREW ON BOARD. SHORTLY AFTER DEPARTURE HE SMELLED FUEL IN CABIN AND PERFORMED A PRECAUTIONARY LANDING AT LOCAL MUNICIPAL AIRFIELD. P
- [SDR 2026FA0000413](https://openairdocs.org/sdr/2026FA0000413), May 20, 2026: CHECK VALVE. STUCK. UPON REMOVAL OF THE OIL CHECK VALVE FOR ROUTINE TESTING, THE AMT NOTICED NO OIL FLOWED OUT OF THE LINE GOING TO THE 6&7 BEARING. THE CHECK VALVE WAS FOUND TO BE
- [SDR EVCA202602230001](https://openairdocs.org/sdr/EVCA202602230001), Feb 21, 2026: CLOCK. UNSERVICEABLE. A STEADY STREAM OF SMOKE WAS OBSERVED COMING FROM THE INSTRUMENT PANEL CLOCK.
- [SDR EVCA202511060001](https://openairdocs.org/sdr/EVCA202511060001), Oct 31, 2025: FUEL CELL. CONTAMINATED. FUEL SMELL IN CABIN, FOUND RESIDUAL FUEL ON FUEL CELL FROM PREVIOUSLY PERFORMED MAINTENANCE.
- [SDR EVCA20251028001](https://openairdocs.org/sdr/EVCA20251028001), Oct 27, 2025: FITTING. INSTALLED. UPPER L/H TAILBOOM ATTACHMENT FITTING CRACKED
- [SDR EVCA2025082300001](https://openairdocs.org/sdr/EVCA2025082300001), Aug 21, 2025: BLOWER MOTOR. ODOR. INTERMITTENT ELECTRICAL SMELL
- [SDR EVCA20250820001](https://openairdocs.org/sdr/EVCA20250820001), Aug 18, 2025: INVERTER. ODOR. INTERMITTENT ELECTRICAL SMELL
- [SDR EVCA202250515001](https://openairdocs.org/sdr/EVCA202250515001), May 9, 2025: STIFFENER. CRACKED. STATION 145 CLIP IS CRACKED IN MULTIPLE RIVET HOLES ON THE LH SIDE.
- [SDR EVCA20250117001](https://openairdocs.org/sdr/EVCA20250117001), Jan 17, 2025: STIFFENER. CRACKED. LH FS 145 & STIFFENER CLIP CRACKED
- [SDR EVCA202501070020](https://openairdocs.org/sdr/EVCA202501070020), Jan 7, 2025: BULKHEAD. CRACKED. RH FS 145 BULKHEAD & STIFFENER CLIP CRACKED
- [SDR EVCA2025010700001](https://openairdocs.org/sdr/EVCA2025010700001), Dec 30, 2024: STIFFENER. CRACKED. STATION 145 CLIP IS CRACKED IN MULTIPLE RIVET HOLES ON THE LH SIDE.
- [SDR EVCA20241204002](https://openairdocs.org/sdr/EVCA20241204002), Dec 1, 2024: BULKHEAD. CRACKED. LH FS 145 CRACKED
- [SDR EVCA202411250001](https://openairdocs.org/sdr/EVCA202411250001), Nov 25, 2024: STIFFENER. CRACKED. RH FS 145 & STIFFENER CLIP CRACKED.
- [SDR EVCA20241119001](https://openairdocs.org/sdr/EVCA20241119001), Nov 15, 2024: SKIN. DAMAGED. BIRD STRIKE WHILE IN CRUISE FLIGHT RETURNING TO BASE. PILOT LANDED IN FIELD NEAR FORUM AR. AMT NOTED DAMAGE TO VERTICAL FIN LOWER LEADING EDGE. REPLACED VERTICA
- [SDR EVCA20241021001](https://openairdocs.org/sdr/EVCA20241021001), Oct 20, 2024: FUEL LINE. WORN. FUEL SMELL IN THE CABIN. FUEL LINE WAS FOUND TO HAVE A WORN FLARE THAT CAUSED IT TO SEEP.
- [SDR MHR22024092400733](https://openairdocs.org/sdr/MHR22024092400733), Sep 24, 2024: BEARING. FLAKING. TRANSMISSION ASSEMBLY HAD METAL IN OIL.
- [SDR EVCA20240903001](https://openairdocs.org/sdr/EVCA20240903001), Sep 2, 2024: BLOWER MOTOR. ODOR. STRONG ELECTRICAL BURNING SMELL IN CABIN. TURNED OFF THE AC AND THE SMELL WENT AWAY.
- [SDR EVCA202408200002](https://openairdocs.org/sdr/EVCA202408200002), Aug 20, 2024: BULKHEAD. CRACKED. RH FS 145 & STIFFENER CLIP CRACKED
- [SDR EVCA202408200001](https://openairdocs.org/sdr/EVCA202408200001), Aug 20, 2024: BULKHEAD. CRACKED. LH FS 145 & STIFFENER CLIP CRACKED
- [SDR EVCA202408120001](https://openairdocs.org/sdr/EVCA202408120001), Aug 6, 2024: ATTACH FITTING. CRACKED. UPPER LEFT TAILBOOM ATTACHMENT FITTING, TAILBOOM SIDE, CRACKED FROM EDGE TO EDGE ACROSS TWO FWD OUTBOARD RIVETS
- [SDR EVCA20240810001](https://openairdocs.org/sdr/EVCA20240810001), Jul 31, 2024: STIFFENER. CRACKED. THE STATION 145 CLIP IS CRACKED BY A RIVET HOLE ON THE RIGHT HAND SIDE.
- [SDR EVCA202405280001](https://openairdocs.org/sdr/EVCA202405280001), May 28, 2024: NOT REPORTED. CRACKED. UPON INSPECTION OF RIVETS, FOUND CRACK IN STRUCTURE AT APPROXIMATELY STA 155, BL 13-16, WL 71-73 UNDERNEATH L/H REAR NODAL BEAM DECK MOUNT.
- [SDR EVCA202406060001](https://openairdocs.org/sdr/EVCA202406060001), May 23, 2024: BULKHEAD. CRACKED. LH FS 145 CRACKED
- [SDR EVCA2024060501](https://openairdocs.org/sdr/EVCA2024060501), May 20, 2024: STIFFENER. CRACKED. LH AFT VERTICAL STIFFENER CRACKED
- [SDR EVCA0202450300024](https://openairdocs.org/sdr/EVCA0202450300024), Apr 30, 2024: RIVET. SHEARED. RIVET SHEARED ON TRANSMISSION DECK, LEFT HAND SIDE NEXT TO LEFT REAR NODAL BEAM SUPPORT. UPON INSPECTION OF RIVETS, FOUND CRACK IN STRUCTURE AT APPROXIMATELY ST
- [SDR EVCA20240426401](https://openairdocs.org/sdr/EVCA20240426401), Apr 24, 2024: EXHAUST STACK. WARPED. WARPING IN ENGINE EXHAUST STACK.
- [SDR EVCA202401240001](https://openairdocs.org/sdr/EVCA202401240001), Jan 24, 2024: STIFFENER. CRACKED. L/H FS 145 STIFFENER CLIP CRACKED.
- [SDR EVCA20231204002](https://openairdocs.org/sdr/EVCA20231204002), Dec 4, 2023: BLADE. CRACKED. VAN HORN M/R BLADE INBOARD AND OUTBOARD TRIM TAB CRACKED
- [SDR EVCA202312040001](https://openairdocs.org/sdr/EVCA202312040001), Dec 4, 2023: BLADE. CRACKED. VAN HORN M/R BLADE INBOARD TRIM TAB CRACKED
- [SDR EVCA2023110931](https://openairdocs.org/sdr/EVCA2023110931), Nov 8, 2023: BLADE. CRACKED. VAN HORN M/R BLADE INBOARD TRIM TAB CRACKED
- [SDR EVCA202311090001](https://openairdocs.org/sdr/EVCA202311090001), Nov 8, 2023: BLADE. CRACKED. VAN HORN M/R BLADE INBOARD TRIM TAB CRACKED
- [SDR EVCA20231027002](https://openairdocs.org/sdr/EVCA20231027002), Oct 26, 2023: BLADE. CRACKED. VAN HORN M/R BLADE INBOARD TRIM TABS CRACKED.
- [SDR EVCA20231027001](https://openairdocs.org/sdr/EVCA20231027001), Oct 26, 2023: BLADE. CRACKED. VAN HORN M/R BLADE INBOARD TRIM TABS CRACKED.
- [SDR EVCA202310020002](https://openairdocs.org/sdr/EVCA202310020002), Sep 30, 2023: MOTOR. UNKNOWN. PILOT REPORTED SMOKE SMELL IN CABIN 2 MIN AFTER DEPARTING HUNTSVILLE HOSPITAL WHILE RETURNING TO BASE. AFTER LANDING DISCUSSION WITH PILOT, THEY THOUGHT IT WAS 
- [SDR EVCA20230919001](https://openairdocs.org/sdr/EVCA20230919001), Sep 16, 2023: BLADE. CRACKED. HOTIZONTAL CRACK APPROX 4" FOUND ON MAIN ROTOR BLADE ROOT
- [SDR 2023F00338](https://openairdocs.org/sdr/2023F00338), Aug 29, 2023: LINK. UNKNOWN. PILOT REPORTED HEARING A LOUD (THUMP NOISE) WHEN THE AIRCRAFT WAS PICKED UP TO A HOVER DURING REPOSITIONING FROM ONE HELI-PAD TO ANOTHER @ KJRB OPERATIONS. WHEN
- [SDR EVCA2023083020](https://openairdocs.org/sdr/EVCA2023083020), Aug 29, 2023: BLADE. UNKNOWN. DISCOVERED PERPENDICULAR CRACK 104 INCHES FROM TIP CAP STARTING AT TRAILING EDGE RUNNING UP TO SPAR ON BELL MAIN ROTOR BLADE P/N 206-015-001-119 S/N VL00249530
- [SDR EVCA20230622001](https://openairdocs.org/sdr/EVCA20230622001), Jun 21, 2023: MOTOR. UNKNOWN. SLIGHT ELECTRICAL BURNING SMELL COMING FROM THE AC DUCTING. HAPPENS WITH AC ON OR BLOWER ONLY.
- [SDR EVCA202303220001](https://openairdocs.org/sdr/EVCA202303220001), Mar 22, 2023: PAN. LEAKING. FUEL SMELL IN AIRCRAFT CABIN. OIL/FUEL SEEP FOUND UNDER ENGINE PAN. CLEANED, INSPECTED, RESEALED ENGINE PAN DRAIN HOLE.
- [SDR EVCA03062023](https://openairdocs.org/sdr/EVCA03062023), Mar 4, 2023: ATTACH FITTING. CRACKED. CRACK FOUND IN L/H UPPER ATTACHMENT TAILBOOM FITTING P/N 206-032-409-001P DURING 50 HOUR INSPECTION
- [SDR EVCA03032023](https://openairdocs.org/sdr/EVCA03032023), Mar 3, 2023: ATTACH FITTING. CRACKED. CRACK FOUND IN L/H UPPER ATTACHMENT TAILBOOM FITTING P/N 206-032-409-001P DURING 50 HOUR INSPECTION
- [SDR EVCA202301170001](https://openairdocs.org/sdr/EVCA202301170001), Jan 15, 2023: TAIL BOOM. CRACKED. 1/2 INCH CRACK AT UPPER LH INBOARD SIDE OF TAILBOOM RING
- [SDR EVCA2023010300002](https://openairdocs.org/sdr/EVCA2023010300002), Jan 2, 2023: EXHAUST DUCT. OUT OF POSITION. CREW REPORTED FUEL/EXHAUST SMELL DURING FLIGHT. UPON FURTHER INVESTIGATION, IT WAS REPORTED THEY HAD A STRONG TAIL WIND AND THE SMELL THEY REPORTED WAS EXHAUST 
- [SDR EVCA202212090001](https://openairdocs.org/sdr/EVCA202212090001), Dec 8, 2022: ATTACH FITTING. CRACKED. CRACK FOUND IN LT UPPER ATTACHMENT TAILBOOM FITTING DURING 100 HOUR INSPECTION.
- [SDR EVCA11232022](https://openairdocs.org/sdr/EVCA11232022), Nov 23, 2022: STIFFENER. CRACKED. LEFT HAND VERTICAL TUNNEL STIFFENER IS CRACKED ON UPPER END
- [SDR EVCA20221115002](https://openairdocs.org/sdr/EVCA20221115002), Nov 13, 2022: UNKNOWN. ODOR. JET-A SMELL IN THE ACFT. INSPECTED AIRCRAFT FUEL SYSTEM FOR LEAKS NO DEFECTS NOTED AT THIS TIME, NO FUEL SMELL NOTED AT THIS TIME. ALL WORK IN REFERENCE WITH BH
- [SDR EVCA20221111001](https://openairdocs.org/sdr/EVCA20221111001), Nov 11, 2022: ATTACH FITTING. CRACKED. CRACK FOUND IN L/H UPPER ATTACHMENT TAILBOOM FITTING P/N 206-032-409-001P DURING 100 HOUR INSPECTION
- [SDR 2VKA202210050001](https://openairdocs.org/sdr/2VKA202210050001), Sep 30, 2022: SUPPORT. CRACKED. CRACK FOUND IN VERTICAL TUNNEL WEB @ RBL 4.0 STA 87.5 WL 67.92.
- [SDR EVCA202209290001](https://openairdocs.org/sdr/EVCA202209290001), Sep 27, 2022: BLOWER MOTOR. ODOR. ELECTRICAL SMELL NOTED DURING FLIGHT. FOUND TO BE THE FORWARD AIR CONDITIONER BLOWER MOTOR.

All 709: https://openairdocs.org/model/bell-helicopter-textron-206l-4/reports.md

## STCs that may be installed (OpenAirDocs) (364, 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 SH2750NM](https://openairdocs.org/stc/SH2750NM): Installation of a Freon type cabin air conditioning system with engine-driven compressor. Air Comm Corporation
- [STC SA800EA](https://openairdocs.org/stc/SA800EA): Installation of Whelen Anti-Collision, Position, or Anti-Collision/Position Light System, and applicable associated power supplies. Whelen Aerospace Technologies
- [STC SR00643SE](https://openairdocs.org/stc/SR00643SE): Installation of Geneva Aviation Video System. Turbolyft USA Corporation
- [STC SR12375NY](https://openairdocs.org/stc/SR12375NY): Demonstration of Aircraft Equipment Configurations Tolerance to Transmitting Portable Electronic Devices (TPED) in Part 27 Aircraft in accordance with the FAA-approved Rotorcraft Equipment Compatibility List (RECL). Kilroy Aviation, LLC
- [STC SR04464NY](https://openairdocs.org/stc/SR04464NY): Installation of the iPad Mount. Avio Design Group Inc
- [STC SR00521SE](https://openairdocs.org/stc/SR00521SE): Installation of Geneva Aviation Audio System. AEM USA Inc
- [STC SR02301SE](https://openairdocs.org/stc/SR02301SE): Installation of Geneva Aviation 28 - 14 VDC Power Converter. AEM USA Inc
- [STC SR02445SE](https://openairdocs.org/stc/SR02445SE): Installation of P178 Failsafe Audio Mixer. AEM USA Inc
- [STC SR02684LA](https://openairdocs.org/stc/SR02684LA): Installation of main rotor blade assembly P/N 20633000-101. Van Horn Aviation LLC
- [STC SH2617SO](https://openairdocs.org/stc/SH2617SO): Installation of a hat rack safety net assembly, P/N 206-432. Bell Helicopter Textron Inc
- [STC SR11898NY](https://openairdocs.org/stc/SR11898NY): Installation of Outerlink Corporation Air IP system. Sterling Helicopter
- [STC SR04845NY](https://openairdocs.org/stc/SR04845NY): Installation of a Helifab East Equipment Mount. Helifab East LLC
- [STC SR04842NY](https://openairdocs.org/stc/SR04842NY): Installation of RMCI Inc. Expandable Rotorcraft Diagnostic System (XRDS). Sterling Helicopter
- [STC SR02809SE](https://openairdocs.org/stc/SR02809SE): Installation of Isolair Inc. Spray System model 3900-206L. Isolair Inc
- [STC SR00532SE](https://openairdocs.org/stc/SR00532SE): Installation of Certified Technology quick release door pins. Certified Technology
- [STC SH3761SW](https://openairdocs.org/stc/SH3761SW): Installation of enlarged instrument panel. Safran Electronics & Defense Avionics USA LLC
- [STC SR00853DE](https://openairdocs.org/stc/SR00853DE): Installation of Fibrotek survey stinger. Upper Limit Aviation
- [STC SR04548CH](https://openairdocs.org/stc/SR04548CH): Installation of Appareo Systems AIRS-400 Flight Monitoring System. Appareo Systems
- [STC SR00425SE](https://openairdocs.org/stc/SR00425SE): Installation of a satellite phone. Turbolyft USA Corporation
- [STC SR00182IB](https://openairdocs.org/stc/SR00182IB): Installation of the Avidyne Integrated Flight Display (IFD) Navigator(s). Horizon Design Services Ltd
- [STC SR00891LA](https://openairdocs.org/stc/SR00891LA): Installation of aft utility mount. Airfilm Camera Systems LLC
- [STC SR01688LA](https://openairdocs.org/stc/SR01688LA): Installation of Aero Pacific Belly Utility Mount. Airfilm Camera Systems LLC
- [STC SR04637CH](https://openairdocs.org/stc/SR04637CH): Replacement of existing main ship battery with Lithium Ion Battery and installation of Annunciator Control Panel. Airwolf Aerospace LLC
- [STC SH3899NM](https://openairdocs.org/stc/SH3899NM): Installation of cabin accessory steps. Dart Aerospace USA Inc
- [STC SH5220NM](https://openairdocs.org/stc/SH5220NM): Installation of Freon air conditioning system. Dart Aerospace USA Inc
- [STC SH5231NM](https://openairdocs.org/stc/SH5231NM): Installation of external pod, camera mount, and 12 volt power provision. Dart Aerospace USA Inc
- [STC SR00106DE](https://openairdocs.org/stc/SR00106DE): Installation and provisions for a nose mounted mini-video camera system and controls. Dart Aerospace USA Inc
- [STC SR00196DE](https://openairdocs.org/stc/SR00196DE): Installation of quick-mount snow pads. Dart Aerospace USA Inc
- [STC SR00326DE](https://openairdocs.org/stc/SR00326DE): Installation of stabilized camera system. Dart Aerospace USA Inc
- [STC SR00611DE](https://openairdocs.org/stc/SR00611DE): Installation of a ram air vent control cable kit in. Dart Aerospace USA Inc
- [STC SR00682DE](https://openairdocs.org/stc/SR00682DE): Installation of Augmented Reality System. Dart Aerospace USA Inc
- [STC SR02120SE](https://openairdocs.org/stc/SR02120SE): Installation of Garmin GTN 6XX/7XX Navigation System. Garmin International Inc
- [STC SR00010DE](https://openairdocs.org/stc/SR00010DE): Installation of anti-torque pedal extensions. Dart Aerospace USA Inc
- [STC SR00011DE](https://openairdocs.org/stc/SR00011DE): Installation of a monitor mount assembly to mount a video monitor. (206B S/N 914 and subs). Dart Aerospace USA Inc
- [STC SR00159DE](https://openairdocs.org/stc/SR00159DE): Installation of Spectrolab SX-16 searchlight under cargo compartment. Dart Aerospace USA Inc
- [STC SR00449DE](https://openairdocs.org/stc/SR00449DE): Installation of removable dual pedal system. Dart Aerospace USA Inc
- [STC SR00516DE](https://openairdocs.org/stc/SR00516DE): Installation of mounting hardware. Dart Aerospace USA Inc
- [STC SR00654DE](https://openairdocs.org/stc/SR00654DE): Installation of Rotary Latch Seat Belts. Dart Aerospace USA Inc
- [STC SH5243NM](https://openairdocs.org/stc/SH5243NM): Installation of hard point for mounting of a Forward Looking Infrared imaging unit or similar external gimbal. Dart Aerospace USA Inc
- [STC SR00014DE](https://openairdocs.org/stc/SR00014DE): Installation of Inframetrics IRTV-445G infrared imaging system. Dart Aerospace USA Inc
- [STC SR00025DE](https://openairdocs.org/stc/SR00025DE): Installation of a shelf panel. Dart Aerospace USA Inc
- [STC SR00033DE](https://openairdocs.org/stc/SR00033DE): Installation of an external mirror. Dart Aerospace USA Inc
- [STC SR00169DE](https://openairdocs.org/stc/SR00169DE): Installation of a fuel cap hinge and hardware. (206B S/N 3567 and subsquent). Dart Aerospace USA Inc
- [STC SR00375DE](https://openairdocs.org/stc/SR00375DE): Installation of laser mapping system. Dart Aerospace USA Inc
- [STC SR00489DE](https://openairdocs.org/stc/SR00489DE): Installation of Paravion Technology PR-206SC-100 engine start counter system. Dart Aerospace USA Inc
- [STC SR00104DE](https://openairdocs.org/stc/SR00104DE): Installation of 6 large area cabin windows. DV Aviation Inc
- [STC SR01980WI](https://openairdocs.org/stc/SR01980WI): Installation of Garmin GI 275 Multi-Function Instrument. Garmin International 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 SR00120BO](https://openairdocs.org/stc/SR00120BO): Installation of an OuterLink Corporation CP-3 or CP-3i Satcom System. Outerlink Corporation
- [STC SR00365BO](https://openairdocs.org/stc/SR00365BO): Installation of an Outerlink SATCOM Communications and Flight Data Monitoring System KIT B206-SAT-100 or KIT B407-SAT-100. Outerlink Corporation

All 364: https://openairdocs.org/model/bell-helicopter-textron-206l-4/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.

- [206EC-210-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID180008683320260923123949.0001): Instl – Air Cond Single Fwd Evap (LH) (206 L4 only) – (General Arrangement 206L4 Air Cond System (Torq-Loc). Air Comm Corporation · PMA PQ0072NM · Modification part · Aug 31, 2026
- [206EC-210-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID119609957820260923123949.0001): Instl – Air Cond  Single Fwd Evap (RH) (206 L4 only) – (General Arrangement 206L4 Air Cond System (Torq-Loc). Air Comm Corporation · PMA PQ0072NM · Modification part · Aug 31, 2026
- [206EC-210-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID112113032020260923123949.0001): Instl – Air Cond Dual Fwd Evap (206 L4 only) – (General Arrangement 206L4 Air Cond System (Torq-Loc). Air Comm Corporation · PMA PQ0072NM · Modification part · Aug 31, 2026
- [MDLDL-206H](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID107083244720260923124149.0001): Cabin Heater System. Air Comm Corporation · PMA PQ0072NM · Modification part · Aug 31, 2026
- [23511-02VA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID124645630220260728184230.0001): Screw Cap Socket Head. Vision Air Services, LLC · PMA PQ2075NM · Replaces 23511-02 · Jul 8, 2026
- [206-011-132-113A](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID157029258720260618165544.0001): Main Rotor Grip Assembly. Able Aerospace Services, Inc. · PMA PQ2487NM · Replaces 206-011-132-113A · May 27, 2026
- [ATBY5V14VA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID117318159020260527183058.0001): Bearing. Vision Air Services, LLC · PMA PQ2075NM · Replaces C42642-68 · May 11, 2026
- [41001912VA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID145872229320260501132544.0001): Rod End, Spherical. Vision Air Services, LLC · PMA PQ2075NM · Replaces 41001912 · Apr 15, 2026
- [98020206-5025](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID129220331020260325205944.0001): Bell Helicopter 206 NVG Modification Kit. REB Technologies Inc · PMA PQ1018SW · Modification part · Mar 23, 2026
- [109090-000325](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID198569213920260202232903.0001): INDUSTRIAL SD CARD, 512GB. Appareo Systems LLC · PMA PQ4000CE · Modification part · Jan 15, 2026
- [67574VA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID168293892820260120135233.0001): Bearing. Vision Air Services, LLC · PMA PQ2075NM · Replaces 67574 · Jan 7, 2026
- [67560VA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID137424716420260120135232.0001): Bearing Ball. Vision Air Services, LLC · PMA PQ2075NM · Replaces 67560 · Jan 7, 2026
- [2AA-310-700-101](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID191327412620260107201328.0001): Seal. Able Aerospace Services, Inc. · PMA PQ2487NM · Replaces 206-310-700-101 · Jan 5, 2026
- [2AA-040-032-105](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID169845768820260107201329.0001): Duplex Bearing. Able Aerospace Services, Inc. · PMA PQ2487NM · Replaces 206-040-032-105 · Jan 5, 2026
- [2AA-040-272-101](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID166278269320260107201327.0001): Seal Assy. Able Aerospace Services, Inc. · PMA PQ2487NM · Replaces 206-040-272-101 · Jan 5, 2026
- [2AA-010-443-001](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID161373427620260107201329.0001): Duplex Bearing. Able Aerospace Services, Inc. · PMA PQ2487NM · Replaces 206-010-443-001 · Jan 5, 2026
- [2AA-340-206-101](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID155802986620260107201328.0001): Seal. Able Aerospace Services, Inc. · PMA PQ2487NM · Replaces 206-340-206-101 · Jan 5, 2026
- [2AA-011-111-001](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID135822418020260107201329.0001): Bearing. Able Aerospace Services, Inc. · PMA PQ2487NM · Replaces 206-011-111-001 · Jan 5, 2026
- [2AA-340-104-101](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID123478311420260107201328.0001): Seal. Able Aerospace Services, Inc. · PMA PQ2487NM · Replaces 206-340-104-101 · Jan 5, 2026
- [535639AA-10](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID115535228420260107201330.0001): Seal. Able Aerospace Services, Inc. · PMA PQ2487NM · Replaces 535639-10 · Jan 5, 2026
- [4AA-312-100-101](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID114458725720260107201333.0001): FlappingBearing. Able Aerospace Services, Inc. · PMA PQ2487NM · Replaces 407-312-100-101 · Jan 5, 2026
- [RMA-000032-160](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID199691214320260225193403.0001): TRACKER CABLE. Sterling Helicopter · PMA PQ10048NE · Modification part · Dec 22, 2025
- [RMHA-000032-220](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID196747860220260225193405.0001): MAIN GEARBOX CASE, INTL. Sterling Helicopter · PMA PQ10048NE · Modification part · Dec 22, 2025
- [RMHA-000032-180](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID193182969620260225193404.0001): GROUND CABLE. Sterling Helicopter · PMA PQ10048NE · Modification part · Dec 22, 2025
- [RMMD-000116-01](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID192330602920260225193406.0001): BELL 206 TGB TACH BRACKET. Sterling Helicopter · PMA PQ10048NE · Modification part · Dec 22, 2025
- [RMHA-000032-230](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID189845645320260225193405.0001): MAIN ROTOR SWASH-PLATE, INTL. Sterling Helicopter · PMA PQ10048NE · Modification part · Dec 22, 2025
- [RMHA-00032-150](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID176505659720260225193403.0001): ETHERNET CABLE. Sterling Helicopter · PMA PQ10048NE · Modification part · Dec 22, 2025
- [RMHA-000032-140](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID176414415920260225193403.0001): TAIL ROTOR TACH CABLE. Sterling Helicopter · PMA PQ10048NE · Modification part · Dec 22, 2025
- [RMHA-000032-110](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID175930578120260225193402.0001): MAIN ROTOR SWASH-PLATE ACCEL. Sterling Helicopter · PMA PQ10048NE · Modification part · Dec 22, 2025
- [RMHA-000032-190](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID169897018120260225193404.0001): CABIN VERTICAL ACCEL. Sterling Helicopter · PMA PQ10048NE · Modification part · Dec 22, 2025
- [RMMD-000095-01](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID169003899220260225193359.0001): GPS ANTENNA BRACKET. Sterling Helicopter · PMA PQ10048NE · Modification part · Dec 22, 2025
- [RMHA-000032-90](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID168276412620260225193401.0001): MAINGEARBOX FORWARD ACCEL. Sterling Helicopter · PMA PQ10048NE · Modification part · Dec 22, 2025
- [RMHA-000032-40](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID164889868220260225193400.0001): HANGER BEARING 4 ACCEL. Sterling Helicopter · PMA PQ10048NE · Modification part · Dec 22, 2025
- [RMED-000080-30](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID163533474020260225193358.0001): KEY FOB. Sterling Helicopter · PMA PQ10048NE · Modification part · Dec 22, 2025
- [RMHA-000032-210](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID158150502720260225193404.0001): MAIN GEARBOX FORWARD, INTL. Sterling Helicopter · PMA PQ10048NE · Modification part · Dec 22, 2025
- [RMHA-000032-130](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID156226701220260225193402.0001): MAIN ROTOR TACH CABLE. Sterling Helicopter · PMA PQ10048NE · Modification part · Dec 22, 2025
- [RMHA-000032-250](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID151555606020260225193405.0001): MAIN ROTOR TACH, INTL. Sterling Helicopter · PMA PQ10048NE · Modification part · Dec 22, 2025
- [RMHA-000032-70](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID147874050920260225193401.0001): HANGER BEARING 7 ACCEL. Sterling Helicopter · PMA PQ10048NE · Modification part · Dec 22, 2025
- [RMHA-000032-20](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID143714288420260225193400.0001): HANGER BEARING 2 ACCEL. Sterling Helicopter · PMA PQ10048NE · Modification part · Dec 22, 2025
- [RMHA-000032-170](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID137996134820260225193403.0001): POWER CABLE. Sterling Helicopter · PMA PQ10048NE · Modification part · Dec 22, 2025
- [RMHA-000032-80](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID131362320320260225193401.0001): TAIL GEARBOX ACCEL. Sterling Helicopter · PMA PQ10048NE · Modification part · Dec 22, 2025
- [RMHA-000032-50](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID129849570720260225193400.0001): HANGER BEARING 5 ACCEL. Sterling Helicopter · PMA PQ10048NE · Modification part · Dec 22, 2025
- [RMHA-000032-60](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID127640891220260225193401.0001): HANGER BEARING 6 ACCEL. Sterling Helicopter · PMA PQ10048NE · Modification part · Dec 22, 2025
- [RMHA-000032-100](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID126079299920260225193402.0001): MAIN GEARBOX CASE ACCEL. Sterling Helicopter · PMA PQ10048NE · Modification part · Dec 22, 2025
- [RMHA-000032-30](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID116043965120260225193400.0001): HANGER BEARING 3 ACCEL. Sterling Helicopter · PMA PQ10048NE · Modification part · Dec 22, 2025
- [RMHA-000032-120](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID112670640120260225193402.0001): ENGINE GEARBOX ACCEL. Sterling Helicopter · PMA PQ10048NE · Modification part · Dec 22, 2025
- [RMHA-000032-10](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID109659436520260225193359.0001): HANGER BEARING 1 ACCEL. Sterling Helicopter · PMA PQ10048NE · Modification part · Dec 22, 2025
- [RMMD-000139-10](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID109509477720260225193359.0001): EPU LITE ASSEMBLY. Sterling Helicopter · PMA PQ10048NE · Modification part · Dec 22, 2025
- [RMHA-000032-200](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID107314285720260225193404.0001): GPS CABLE. Sterling Helicopter · PMA PQ10048NE · Modification part · Dec 22, 2025
- [RMHA-000032-240](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID104716139520260225193405.0001): ENGINE GEARBOX,  INTL. Sterling Helicopter · PMA PQ10048NE · Modification part · Dec 22, 2025

All of them: https://openairdocs.org/model/bell-helicopter-textron-206l-4/pma.md

## The same model under other registry codes

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

- [Bell 206-L4](https://openairdocs.org/model/bell-206-l4): 121 registered aircraft, registry code 1182110
- [Bell Helicopter Textron Canada 206L-4](https://openairdocs.org/model/bell-helicopter-textron-canada-206l-4): 103 registered aircraft, registry code 1181455

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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.