# N336MP: Bell 205A-1 - Status: Valid registration - Airframe: [Bell 205A-1](https://openairdocs.org/model/bell-205a-1) (registry code 1181414, 15 seats) - Data sheets: [TCDS H1SW](https://openairdocs.org/tcds/H1SW) (Bell Textron Inc.) (OpenAirDocs) - Serial number: 30107 - Type: Rotorcraft - Engine type: Turbo-shaft - Certificate issued: September 17, 2025 - Expires: September 30, 2032 - Mode S code: A3AD3A - Registered owner: [Pope James Dean](https://openairdocs.org/faa-owner/POPE%20JAMES%20DEAN) - Location: [Lewiston, ID](https://openairdocs.org/faa-place/ID/Lewiston) - Owner type: Individual - Owner's area on the map: 46.2517° N, 116.9250° W: Placed by OpenAirDocs at the center of ZIP code 83501, within about 9 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=336MP - Page: https://openairdocs.org/aircraft/N336MP From the FAA registry file of October 22, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination. ## ADs that may apply (OpenAirDocs): 68 in force ### Matched by airframe (Bell 205A-1) - [AD 2024-17-02](https://openairdocs.org/ad/2024-17-02): Rotorcraft Tail Boom · Bell Textron 204B, 205B, 205A-1 and 2 more. Effective Nov 8, 2024 - [AD 2024-19-17](https://openairdocs.org/ad/2024-19-17): Rotorcraft flight control · Airwolf Aerospace, LLC Tension-Torsion Strap Assemblies, P/N… (STC SR03408CH). Effective Oct 11, 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 2022-21-11](https://openairdocs.org/ad/2022-21-11): Main rotor blades · Bell Textron 204B, 205A, 205A-1 and 11 more. Effective Nov 16, 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 2022-05-10](https://openairdocs.org/ad/2022-05-10): Cabin Equipment/Furnishings · Airbus Helicopters AS332L, AS332L1, AS332L2 and 57 more. Effective Apr 20, 2022 - [AD 2022-06-03](https://openairdocs.org/ad/2022-06-03): Main Rotor System · Bell Textron 204B, 205A, 205A-1 and 3 more. Effective Mar 16, 2022 - [AD 2020-19-08](https://openairdocs.org/ad/2020-19-08): Main Rotor · Bell Textron 204B, 205A-1 and 212. Effective Oct 21, 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 2018-02-08](https://openairdocs.org/ad/2018-02-08): Main Rotor blades · Bell Helicopter Textron 204B, 205A and 205A-1. Effective Feb 1, 2018 - [AD 2016-22-07](https://openairdocs.org/ad/2016-22-07): Main Rotor Blades · Bell Helicopter Textron 204B, 205A and 205A-1. Effective Nov 30, 2016 - [AD 2015-15-04](https://openairdocs.org/ad/2015-15-04): Main Rotor Blade Grip · Bell Helicopter Textron 204B, 205A, 205A-1 and 1 more. Effective Aug 7, 2015 - [AD 2014-12-04](https://openairdocs.org/ad/2014-12-04): Main Rotor Head · Bell Helicopter Textron 204B, 205A, 205A-1 and 3 more. Effective Jul 24, 2014 - [AD 2013-18-07](https://openairdocs.org/ad/2013-18-07): Tail Rotor Control System · Bell Helicopter Textron 204B and 205A-1. Effective Oct 18, 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 2013-03-16](https://openairdocs.org/ad/2013-03-16): Main Rotor Head · Bell Helicopter Textron 204B, 205A, 205A-1 and 3 more. Effective Feb 27, 2013 - [AD 2012-17-08](https://openairdocs.org/ad/2012-17-08): Main Rotor Head · Bell Helicopter Textron 204B, 205A, 205A-1 and 2 more. Effective Feb 27, 2013 - [AD 2012-26-11](https://openairdocs.org/ad/2012-26-11): Electrical power system wiring · Bell Helicopter Textron 205A, 205A-1 and 205B. Effective Feb 13, 2013 - [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 2011-23-02](https://openairdocs.org/ad/2011-23-02): Main rotor blade (blade) assemblies · Bell Helicopter Textron 205A-1, 205B, 210 and 1 more. Effective Nov 21, 2011 - [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 2002-22-14](https://openairdocs.org/ad/2002-22-14): Main rotor tension-torsion (TT) straps · Bell Helicopter Textron 204B, 205A, 205A-1 and 4 more. Effective Dec 13, 2002 - [AD 2002-09-51](https://openairdocs.org/ad/2002-09-51): Tail rotor (T/R) grip · Bell Helicopter Textron 204B, 205A, 205A-1 and 1 more. Effective Aug 22, 2002 - [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 2001-08-04](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 2000-15-52](https://openairdocs.org/ad/2000-15-52): Mast and main rotor trunnions · Bell Helicopter Textron 204B, 205A, 205A-1 and 2 more. Effective Dec 28, 2000 - [AD 99-18-02](https://openairdocs.org/ad/99-18-02): Vertical Fin Spar Cap · Bell Helicopter Textron 205A-1 and 205B. Effective Oct 5, 1999 - [AD 99-17-03](https://openairdocs.org/ad/99-17-03): Tailboom Vertical Fin Spar · Bell Helicopter Textron 204B, 205A and 205A-1. Effective Sep 16, 1999 - [AD 98-11-14](https://openairdocs.org/ad/98-11-14): Tail Rotor Yoke Assembly · Bell Helicopter Textron 205A-1 and 205B. Effective Feb 10, 1999 - [AD 95-10-07](https://openairdocs.org/ad/95-10-07): Tail Rotor Drive Gearbox Assembly · Bell Helicopter Textron 204B, 205A and 205A-1. Effective May 26, 1995 - [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 92-27-21](https://openairdocs.org/ad/92-27-21): Tail Rotor Driveshaft · Bell Helicopter Textron 205A-1 and 205B. Effective Jul 7, 1993 - [AD 92-23-01](https://openairdocs.org/ad/92-23-01): Main Rotor Pillow Blocks · Bell Helicopter Textron 204B, 205A, 205A-1 and 10 more. Effective Apr 23, 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 92-07-08](https://openairdocs.org/ad/92-07-08): Swashplate Support Assembly · Bell Helicopter Textron 204B, 205A, 205A-1 and 2 more. Effective Mar 25, 1992 - [AD 90-03-10](https://openairdocs.org/ad/90-03-10): Tail Rotor Grips · Arrow Falcon Exporters UH-1H, UH-1F, 204B and 33 more. Effective Oct 18, 1991 - [AD 89-20-12](https://openairdocs.org/ad/89-20-12): Tail Rotor Hub Assembly · Overseas Aircraft Support 204B, 205A, 205A-1 and 8 more. Effective Aug 15, 1990 - [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 88-25-05](https://openairdocs.org/ad/88-25-05): Tail Rotor Grip Assembly · AST UH-1F, 204B, 205A and 25 more. Effective Dec 13, 1988 - [AD 80-21-05](https://openairdocs.org/ad/80-21-05): Landing Gear Cross Tubes · Bell Helicopter Textron 205A-1 and 212. Effective Oct 15, 1980 - [AD 80-03-07](https://openairdocs.org/ad/80-03-07): Fuselage Main Beams Splice · Bell Helicopter Textron 205A-1. Effective Feb 5, 1980 - [AD 78-20-07](https://openairdocs.org/ad/78-20-07): Shoulder Radius Fitting · Bell Helicopter Textron 204B, 205A-1 and 212. Effective Oct 25, 1978 ### Historical (superseded or no longer in force) - [AD 2022-02-02](https://openairdocs.org/ad/2022-02-02) (historical): Main Rotor System · Bell Textron 204B, 205A, 205A-1 and 3 more. Effective Feb 16, 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 2021-15-51](https://openairdocs.org/ad/2021-15-51) (historical): Main rotor system · Bell Textron 204B, 205A, 205A-1 and 2 more. Effective Aug 24, 2021 - [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 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 2003-01-04](https://openairdocs.org/ad/2003-01-04) (historical): Main rotor grip · New rotor blades (Hillsboro STC SH5132NM). Effective Jan 30, 2003 - [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 2002-08-53](https://openairdocs.org/ad/2002-08-53) (historical): T/R Grip · Bell Helicopter Textron 205A, 205A-1 and 205B - [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 2000-08-52](https://openairdocs.org/ad/2000-08-52) (historical): Main Rotor System · Bell Helicopter Textron 204B, 205A, 205A-1 and 2 more - [AD 98-24-15](https://openairdocs.org/ad/98-24-15) (historical): Main Rotor Mast and Trunnion · Bell Helicopter Textron 204B, 205A, 205A-1 and 2 more. Effective Dec 8, 1998 - [AD 81-19-02](https://openairdocs.org/ad/81-19-02) (historical): Main Rotor Yoke · Bell Helicopter Textron 204B, 205A, 205A-1 and 1 more. Effective Sep 30, 1981 - [AD 80-17-09](https://openairdocs.org/ad/80-17-09) (historical): Main Rotor Straps · Bell Helicopter Textron 204B, 205A-1, 212 and 16 more. Effective Sep 15, 1980 - [AD 79-20-05](https://openairdocs.org/ad/79-20-05) (historical): Main Rotor Hub Assembly · Bell Helicopter Textron 204B, 205A-1 and 212. Effective Jan 18, 1980 - [AD 76-12-07](https://openairdocs.org/ad/76-12-07) (historical): Tail Rotor Chains · Bell Helicopter Textron 204B and 205A-1. Effective Oct 29, 1979 - [AD 75-26-05](https://openairdocs.org/ad/75-26-05) (historical): Main Rotor Blades · Bell Helicopter Textron 204B, 205A-1 and 212. Effective Jan 19, 1976 All 85: https://openairdocs.org/aircraft/N336MP/ads.md ## Information bulletins (advisory) (3 in force) - [SAIB SW-12-38](https://openairdocs.org/saib/SW-12-38): Emergency Push Out Window Retention. Issued Jul 30, 2012 - [SAIB SW-05-10R1](https://openairdocs.org/saib/SW-05-10R1): . Issued Nov 30, 2004 - [SAIB ASW-94-01](https://openairdocs.org/saib/ASW-94-01): . Issued Nov 2, 1994 - [SAIB SW-05-10](https://openairdocs.org/saib/SW-05-10) (historical): . Issued Nov 5, 2004 ## NTSB investigations None matched to N336MP. ## FAA accident and incident reports None matched to N336MP. ## Service difficulty reports None filed for this aircraft. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. ## STCs that may be installed (OpenAirDocs) (230, first 50) Approved for this aircraft's airframe or engine model, in force first, then newest. The registry doesn't record which STCs an aircraft has; its records do. ### Approved for the airframe (Bell 205A-1) - [STC SR12508IB](https://openairdocs.org/stc/SR12508IB): Installation of Personnel Carrying Devices (PCDs) for Human External Cargo (HEC). Ascent Aerospace Ltd - [STC SR12457NY](https://openairdocs.org/stc/SR12457NY): Demonstration of Aircraft Equipment Configurations Tolerance to Transmitting Portable Electronic Devices (TPED) in Part 29 Aircraft. Kilroy Aviation, LLC - [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 SH1201SO](https://openairdocs.org/stc/SH1201SO): Installation P/N 364-83300-1 (Standard Skid Gear) or P/N 364-83300-3 (High Skid Gear). This Wire Strike Protection System. Magellan Aerospace - [STC SR04465NY](https://openairdocs.org/stc/SR04465NY): Installation of the iPad Mount. Avio Design Group Inc - [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 SH8609SW](https://openairdocs.org/stc/SH8609SW): Fabrication of Isolair Eliminator II Model 4600-205 fire fighting system. Isolair Inc - [STC SR01776SE](https://openairdocs.org/stc/SR01776SE): Fabrication, installation, and maintenance of the Isolair Helicopters, Inc., Model 9002 High Cross tubes. Isolair Inc - [STC SR04662CH](https://openairdocs.org/stc/SR04662CH): Installation of Luma Technologies LT-4205 20 Station Integrated LED Display Panel. Luma Technologies LLC - [STC SR00145IB](https://openairdocs.org/stc/SR00145IB): Installation of LH and RH Vertical Reference Door(s). Transwest Helicopters Ltd - [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 SR01865SE](https://openairdocs.org/stc/SR01865SE): Fabrication and installation of FastFin System. BLR Aerospace LLC - [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 SR09462RC](https://openairdocs.org/stc/SR09462RC): Installation of Night Vision Goggle Compatible Interior Lighting System. REB Technologies Inc - [STC SR00094IB](https://openairdocs.org/stc/SR00094IB): Installation of Extended Port Seat Rail. Ascent Aerospace Ltd - [STC SR00080IB](https://openairdocs.org/stc/SR00080IB): Installation of the Garmin GRA 55 Radar Altimeter. Alpine Aerotech LP - [STC SR00077IB](https://openairdocs.org/stc/SR00077IB): Installation of the Two Place Seat Assembly. Ascent Aerospace Ltd - [STC SR00075IB](https://openairdocs.org/stc/SR00075IB): Installation of Cabin Furnishings. Ascent Aerospace Ltd - [STC SH400NW](https://openairdocs.org/stc/SH400NW): Installation of left hand bubble door with or without duplicate engine instruments. WSH, LLC - [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 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 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 SR02189SE](https://openairdocs.org/stc/SR02189SE): Installation of a Supplemental Lighting System, manufactured and installed. Aviation Specialties Unlimited Inc - [STC SR00713SE](https://openairdocs.org/stc/SR00713SE): Installation of Onboard Systems International Cargo Hook Kit. Onboard Systems International - [STC SR01903NY](https://openairdocs.org/stc/SR01903NY): Installation of a modified co-pilot seat. Transwest Helicopters Ltd - [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 - [STC SR00699SE](https://openairdocs.org/stc/SR00699SE): Fabrication of Onboard Systems Model 200-246-00 cargo hook kit. Onboard Systems International - [STC SR04425NY](https://openairdocs.org/stc/SR04425NY): Installation of the Basic Digital Flight Instrument Kit. Alpine Aerotech LP - [STC SR04588NY](https://openairdocs.org/stc/SR04588NY): Replacement Cabin Floor Panels. Trinity Aviation Services Limited - [STC SR04581NY](https://openairdocs.org/stc/SR04581NY): Installation of Mirror and Pulse Light. Ascent Aerospace Canada Ltd - [STC SR02001SE](https://openairdocs.org/stc/SR02001SE): Fabrication and installation of Model 72448 locking fuel cover assembly. Timberline Aerospace LLC - [STC SR04593NY](https://openairdocs.org/stc/SR04593NY): Installation of Two Place Seat. Ascent Aerospace Canada Ltd - [STC SR04579NY](https://openairdocs.org/stc/SR04579NY): Installation of the 212-030-003-049 Nose Assembly. Ascent Aerospace Canada Ltd - [STC SR04580NY](https://openairdocs.org/stc/SR04580NY): Installation of Public Address Speaker Box. Ascent Aerospace Canada Ltd - [STC SR04577NY](https://openairdocs.org/stc/SR04577NY): Installation of Cabin Furnishings. Ascent Aerospace Canada Ltd - [STC SR04578NY](https://openairdocs.org/stc/SR04578NY): Installation of Extended Port Seat Rails. Ascent Aerospace Canada Ltd - [STC SR04569NY](https://openairdocs.org/stc/SR04569NY): Installation of the Garmin GTX 3x5 ADS-B Transponder. Alpine Aerotech LP - [STC SR02492LA](https://openairdocs.org/stc/SR02492LA): Installation of a Helicopter Technology Company main rotor blade assembly. Helicopter Technology Co - [STC SR04517NY](https://openairdocs.org/stc/SR04517NY): The Forward and Aft Crew Door Rod Assembly Replacement. Transwest Helicopters Ltd All 230: https://openairdocs.org/aircraft/N336MP/stcs.md ## Related - Other Bell 205A-1 aircraft: https://openairdocs.org/model/bell-205a-1/aircraft.md --- 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.