# N277AT: 2016 Air Tractor AT-602 - Status: Valid registration - Airframe: [Air Tractor AT-602](https://openairdocs.org/model/air-tractor-at-602) (registry code 0390309, 2 seats) - Engine: [Pratt & Whitney Canada PT6A-65AG](https://openairdocs.org/engine/pratt-whitney-canada-pt6a-65ag) (registry code 52109) - Data sheets: [TCDS A19SW](https://openairdocs.org/tcds/A19SW) (Air Tractor Inc.), [TCDS E4EA](https://openairdocs.org/tcds/E4EA) (Pratt & Whitney Canada Corp.) (OpenAirDocs) - Serial number: 602-1277 - Year built: 2016 - Type: Fixed wing single engine - Engine type: Turbo-prop - Airworthiness: Restricted, agriculture and pest control, forest - Airworthiness date: August 17, 2016 - Certificate issued: November 1, 2016 - Expires: November 30, 2029 - Mode S code: A2C08F - Registered owner: [Boardman Air Service LLC](https://openairdocs.org/faa-owner/BOARDMAN%20AIR%20SERVICE%20LLC) - Location: [Henderson, NE](https://openairdocs.org/faa-place/NE/Henderson) - Owner type: LLC - Owner's area on the map: 40.7636° N, 97.7833° W: Placed by OpenAirDocs at the center of ZIP code 68371, within about 5 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=277AT - Page: https://openairdocs.org/aircraft/N277AT From the FAA registry file of October 24, 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): 10 in force ### Matched by airframe (Air Tractor AT-602) - [AD 2021-05-14](https://openairdocs.org/ad/2021-05-14): TE flap control system · Air Tractor AT-250, AT-300, AT-301 and 19 more. Effective Apr 29, 2021 - [AD 2009-11-05](https://openairdocs.org/ad/2009-11-05): Cracks in the engine mount · Air Tractor AT-400, AT-400A, AT-402 and 9 more. Effective Jun 1, 2009 - [AD 2008-26-01](https://openairdocs.org/ad/2008-26-01): Overturn skid plate kit · Air Tractor AT-250, AT-300, AT-301 and 15 more. Effective Jan 28, 2009 - [AD 2007-10-01](https://openairdocs.org/ad/2007-10-01): Horizontal stabilizer brace tube assembly · Air Tractor AT-602. Effective Jun 12, 2007 - [AD 2006-23-14](https://openairdocs.org/ad/2006-23-14): Rudder and vertical fin hinge attaching structure · Air Tractor AT-502, AT-502A, AT-502B and 3 more. Effective Dec 21, 2006 - [AD 2006-23-09](https://openairdocs.org/ad/2006-23-09): Wing main spar lower caps · Air Tractor AT-602. Effective Dec 14, 2006 - [AD 2005-13-12](https://openairdocs.org/ad/2005-13-12): Front and rear spar of the horizontal stabilizer · Air Tractor AT-300, AT-301, AT-302 and 11 more. Effective Aug 5, 2005 - [AD 2004-15-15](https://openairdocs.org/ad/2004-15-15): Aft Fuselage Upper Longeron · Air Tractor AT-401, AT-401B, AT-402 and 10 more. Effective Sep 7, 2004 ### Matched by engine (Pratt & Whitney Canada PT6A-65AG) - [AD 2016-05-13](https://openairdocs.org/ad/2016-05-13): Corrosion and perforation of the two-ply Cu-Be bellows in Woodward FCUs. · Pratt & Whitney Canada PT6A-60AG, PT6A-65AG, PT6A-67AF and 1 more. Effective Apr 22, 2016 - [AD 97-04-12](https://openairdocs.org/ad/97-04-12): Compressor Bleed-off Valve · Pratt & Whitney Canada PT6A-11, PT6A-110, PT6A-112 and 52 more. Effective Mar 14, 1997 ### Historical (superseded or no longer in force) - [AD 2008-11-17](https://openairdocs.org/ad/2008-11-17) (historical): Overturn skid plate in the cockpit area · Air Tractor AT-250, AT-300, AT-301 and 14 more. Effective Jul 7, 2008 - [AD 2008-10-12](https://openairdocs.org/ad/2008-10-12) (historical): Cracks in the engine mount · Air Tractor AT-400, AT-400A, AT-402 and 9 more. Effective Jun 12, 2008 - [AD 2007-13-17](https://openairdocs.org/ad/2007-13-17) (historical): Cracked engine mounts · Air Tractor AT-602, AT-802 and AT-802A. Effective Aug 10, 2007 - [AD 2006-22-08](https://openairdocs.org/ad/2006-22-08) (historical): Inspect engine mount · Air Tractor AT-602, AT-802 and AT-802A. Effective Dec 1, 2006 - [AD 2002-19-10](https://openairdocs.org/ad/2002-19-10) (historical): Upper longeron and upper diagonal tube · Air Tractor AT-402, AT-402A, AT-402B and 3 more. Effective Nov 15, 2002 ## Information bulletins (advisory) (8 in force) - [SAIB CE-19-21](https://openairdocs.org/saib/CE-19-21): Flap Motor Mounting Studs. Issued Dec 9, 2019 - [SAIB CE-18-06](https://openairdocs.org/saib/CE-18-06): Flight Controls, Rudder Control System. Issued Dec 1, 2017 - [SAIB CE-17-03](https://openairdocs.org/saib/CE-17-03): Flight Controls, Rudder Control System. Issued Dec 16, 2016 - [SAIB CE-16-27](https://openairdocs.org/saib/CE-16-27): Flight Controls, Trailing Edge (TE) Flap Control System. Issued Oct 31, 2016 - [SAIB CE-16-10](https://openairdocs.org/saib/CE-16-10): Stabilizers, Rudder Structure. Issued Dec 1, 2015 - [SAIB CE-11-30](https://openairdocs.org/saib/CE-11-30): Aircraft Structures. Issued May 9, 2011 - [SAIB CE-04-23](https://openairdocs.org/saib/CE-04-23): . Issued Dec 2, 2003 - [SAIB NE-15-21](https://openairdocs.org/saib/NE-15-21): Fuel Injector Nozzle. Issued Aug 19, 2015 ## NTSB investigations None matched to N277AT. ## FAA accident and incident reports None matched to N277AT. ## 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. ## Service difficulty reports on N277AT not matched to an aircraft (28) They name N277AT, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft. - [SDR SIMA200221902](https://openairdocs.org/sdr/SIMA200221902), Aug 7, 2002: BATTERY PACK. INOPERATIVE. MIA - FLT 5017 - DURING PREFLIGHT, CREW REPORTED SEVERAL FLOOR PROXIMITY EMERGENCY LIGHTS TO BE INOPERATIVE. MAINTENANCE REMOVED AND REPLACED A BATTERY PACK IN - [SDR SIMA200222204](https://openairdocs.org/sdr/SIMA200222204), Jul 8, 2002: BATTERY PACK. INOPERATIVE. MIA - DURING SCHEDULED PS CHECK, MAINTENANCE REPORTED ONE BATTERY PACK FOR THE EMERGENCY TO BE INOPERATIVE, ONE SET OF LIGHTS. MAINTENANCE REMOVED AND REPLACED - [SDR SIMA200132201](https://openairdocs.org/sdr/SIMA200132201), Nov 18, 2001: POWER SUPPLY. DISCHARGED. MAINTENANCE REPORTED SEVERAL EMERGENCY LIGHT TO BE INOPERATIVE. MAINTENANCE REMOVED AND REPLACED ALL SIX POWER SUPPLY UNITS IAW ATR MM. OPERATIONAL CHECK WAS GO - [SDR SIMA200131502](https://openairdocs.org/sdr/SIMA200131502), Nov 11, 2001: LIGHT. INOPERATIVE. MIA - FLT 5088 - DURING POST FLIGHT, CREW REPORTED THE EMERGENCY LIGHT IN THE PASSENGER DOOR TO BE INOPERATIVE. MAINTENANCE REMOVED AND REPLACED THE LIGHT ASSEM - [SDR SIMA200129018](https://openairdocs.org/sdr/SIMA200129018), Oct 17, 2001: WIRE. BROKEN. MIA - FLOOR PROXIMITY EMERGENCY LIGHTING AT ROW 2AB WAS FOUND TO BE INOPERATIVE. REPAIRED BROKEN WIRE AT EMERGENCY LIGHT ON ROW 2AB IAW ATR 42 AWM. (M) - [SDR SIMA200115618](https://openairdocs.org/sdr/SIMA200115618), Jun 5, 2001: PLUG. CONTAMINATED. JAX - FLT 5258 - NR 2 ENGINE SURGED ON TAKEOFF. TAKEOFF WAS ABORTED AND RETURNED TO GATE. S/D - FOUND OIL ON PLUGS ON THE TSCU. CLEANED PLUGS AND PERFORMED RUNS - [SDR SIMA0092](https://openairdocs.org/sdr/SIMA0092), Jan 9, 2001: SENSOR. FAILED. EYW - FLT 5263 - AFTER TAKEOFF FROM EYW CREW HAD A NR 1 DC GEN FAULT. DIVERTED TO MIA. REMOVED AND REPLACED HAIL EFFECT SENSOR IAW AMM. OPS CHECK GOOD. (M) - [SDR SIMA33410](https://openairdocs.org/sdr/SIMA33410), Nov 29, 2000: GENERATOR. MALFUNCTIONED. MIA - FLT 5239 - NR 2 DC GENERATOR FAULTS IN FLT. REMOVED AND REPLACED THE NR 2 DC GENERATOR. OPS CHECK GOOD. (M) - [SDR SIMA2074](https://openairdocs.org/sdr/SIMA2074), Jul 11, 2000: STRUCTURE. CORRODED. SAW - DURING CPCP-2 INSPECTION, MAINTENANCE FOUND THE RIGHT AFT ZEE MEMBER BETWEEN FRAMES 39 AND 40 CORRODED. MAINTENANCE REMOVED AND REPLACED THE ZEE MEMBER IA - [SDR SIMA2073](https://openairdocs.org/sdr/SIMA2073), Jul 11, 2000: INTERCOSTAL. CORRODED. SAW - DURING CPCP-2 INSPECTION, MAINTENANCE FOUND THE SERVICE DOOR SILL PLATE INTERCOSTAL BETWEEN FRAMES 39 AND 40 CORRODED. MAINTENANCE REMOVED AND REPLCCED TH - [SDR SIMA2072](https://openairdocs.org/sdr/SIMA2072), Jul 11, 2000: SILL DRAIN. CORRODED. SAW - DURING CPCP-2 INSPECTION REPORTED THE SERVICE DOOR SILL PLATE DRAIN TRACK CORRODED BETWEEN FRAMES 36 AND 39. MAINTENANCE REMOVED AND REPLACED THE DRAIN TR - [SDR SIMA2071](https://openairdocs.org/sdr/SIMA2071), Jul 11, 2000: SKIN. CORRODED. SAW - DURING CPCP-2 INSPECTION, MAINTENANCE FOUND THE PASSENGER DOOR INNER SKIN CORRODED IN SEVERAL PLACES. MAINTENANCE REMOVED AND REPLACED THE PASSENGER DOOR - [SDR SIMA2075](https://openairdocs.org/sdr/SIMA2075), Jul 11, 2000: SEAT TRACK. CORRODED. SAW - DURING CPCP-2 INSPECTION, MAINTENANCE FOUND THE RIGHT FORWARD INBOARD SEAT TRACK CORRODED. MAINTENANCE REMOVED AND REPLACED THE SEAT TRACK IAW ENGINEERING - [SDR SIMA0406](https://openairdocs.org/sdr/SIMA0406), Feb 9, 2000: BULB. FAILED. ORD - FLT 4256 - FLOOR PROXIMITY LIGHT OUT AT ROW 9. REMOVED AND REPLACED BULB AT ROW 9. OPS CHECK GOOD. (M) - [SDR SIMA992432](https://openairdocs.org/sdr/SIMA992432), Aug 31, 1999: LIGHT. INOPERATIVE. SAW - DURING PS-2 INSPECTION, FOUND THE PASSENGER DOOR EMERGENCY LIGHT DID NOT ILLUMINATE. REMOVED AND REPLACED THE LIGHT ASSEMBLY. OPERATIONAL CHECK GOOD. (M) - [SDR SIMA983174](https://openairdocs.org/sdr/SIMA983174), Nov 13, 1998: SEAT TRACK. CORRODED. SAW - DURING CPCP1 INSPECTION, FOUND THE LEFT AFT OUTBOARD SEAT TRACK CORRODED. REMOVED AND REPLACED THE SEAT TRACK. AIRCRAFT RETURNED TO SERVICE. (M) - [SDR SIMA983173](https://openairdocs.org/sdr/SIMA983173), Nov 13, 1998: DRAIN. CORRODED. SAW - DURING CPCP1 INSPECTION, FOUND THE SERVICE DOOR DRAIN TRACK CORRODED. REMOVED AND REPLACED THE DRAIN TRACK. AIRCRAFT RETURNED TO SERVICE. (M) - [SDR SIMA983166](https://openairdocs.org/sdr/SIMA983166), Nov 12, 1998: CHORD. CORRODED. SAW - DURING CPCP1 INSPECTION, FOUND THE LEFT CHORD BETWEEN FRAMES 39 AND 40 CORRODED. REMOVED AND REPLACED THE CHORD. AIRCRAFT RETURNED TO SERVICE. (M) - [SDR SIMA983165](https://openairdocs.org/sdr/SIMA983165), Nov 12, 1998: STRINGER. CORRODED. SAW - DURING CPCP1 INSPECTION, FOUND STRINGER 17 RIGHT BETWEEN FRAME 35 AND 37 CORRODED. REMOVED AND REPLACED STRINGER 17 RIGHT. AIRCRAFT RETURNED TO SERVICE. ( - [SDR SIMA983163](https://openairdocs.org/sdr/SIMA983163), Nov 12, 1998: SEAT TRACK. CORRODED. SAW - DURING CPCP1 INSPECTION, FOUND CORROSION ON THE RIGHT AFT INBOARD AND OUTBOARD, THE RIGHT AND LEFT FORWARD OUTBOARD, THE RIGHT AND LEFT FLIGHT ATTENDANT A - [SDR SIMA983162](https://openairdocs.org/sdr/SIMA983162), Nov 12, 1998: FLOORBEAMS. CORRODED. SAW - DURING CPCP1 INSPECTION, FOUND FLOORBEAMS 36, 38, 39 AND 40 CORRODED. REMOVED AND REPLACED THE FLOORBEAMS. AIRCRAFT RETURNED TO SERVICE. (M) - [SDR SIMA983161](https://openairdocs.org/sdr/SIMA983161), Nov 12, 1998: DRAIN TRACK. CORRODED. SAW - DURING CPCP1 INSPECTION, FOUND THE PASSENGER DOOR SILL DRAIN TRACK BETWEEN FRAMES 36 AND 39 CORRODED. REMOVED AND REPLACED THE DRAIN TRACK. AIRCRAFT RETUR - [SDR 98ZZZM918](https://openairdocs.org/sdr/98ZZZM918), Nov 12, 1998: FLOORBEAMS. CORRODED. SAW - DURING CPCP1 INSPECTION, FOUND FLOORBEAMS 36, 38, 39 AND 40 CORRODED. REMOVED AND REPLACED THE FLOORBEAMS. AIRCRAFT RETURNED TO SERVICE. (M) - [SDR 98ZZZM917](https://openairdocs.org/sdr/98ZZZM917), Nov 12, 1998: FLOORBEAMS. CORRODED. SAW - DURING CPCP1 INSPECTION, FOUND FLOORBEAMS 36, 38, 39 AND 40 CORRODED. REMOVED AND REPLACED THE FLOORBEAMS. AIRCRAFT RETURNED TO SERVICE. (M) - [SDR 98ZZZM916](https://openairdocs.org/sdr/98ZZZM916), Nov 12, 1998: FLOORBEAMS. CORRODED. SAW - DURING CPCP1 INSPECTION, FOUND FLOORBEAMS 36, 38, 39 AND 40 CORRODED. REMOVED AND REPLACED THE FLOORBEAMS. AIRCRAFT RETURNED TO SERVICE. (M) - [SDR 98ZZZM915](https://openairdocs.org/sdr/98ZZZM915), Nov 12, 1998: SEAT TRACK. CORRODED. SAW - DURING CPCP1 INSPECTION, FOUND CORROSION ON THE RIGHT AFT INBOARD AND OUTBOARD, THE RIGHT AND LEFT FORWARD OUTBOARD, THE RIGHT AND LEFT FLIGHT ATTENDANT A - [SDR 98ZZZM914](https://openairdocs.org/sdr/98ZZZM914), Nov 12, 1998: SEAT TRACK. CORRODED. SAW - DURING CPCP1 INSPECTION, FOUND CORROSION ON THE RIGHT AFT INBOARD AND OUTBOARD, THE RIGHT AND LEFT FORWARD OUTBOARD, THE RIGHT AND LEFT FLIGHT ATTENDANT A - [SDR 98ZZZM913](https://openairdocs.org/sdr/98ZZZM913), Nov 12, 1998: SEAT TRACK. CORRODED. SAW - DURING CPCP1 INSPECTION, FOUND CORROSION ON THE RIGHT AFT INBOARD AND OUTBOARD, THE RIGHT AND LEFT FORWARD OUTBOARD, THE RIGHT AND LEFT FLIGHT ATTENDANT A ## STCs that may be installed (OpenAirDocs) (63, 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 (Air Tractor AT-602) - [STC SA04484CH](https://openairdocs.org/stc/SA04484CH): Installation of a Reabe Aircraft Improvement Power Gate Control System. Reabe Design LLC - [STC SA01800SE](https://openairdocs.org/stc/SA01800SE): Fabrication and installation of new or replacement of existing instrument panel lights dimmer control. TCW Technologies, LLC - [STC SA01861SE](https://openairdocs.org/stc/SA01861SE): Fabrication and installation of Landing Light Controller. TCW Technologies, LLC - [STC SA04837NY](https://openairdocs.org/stc/SA04837NY): Installation of AeroLED's Holdings, LLC., position lights, navigation lights, strobe lights and beacon lights. AeroLED's Holdings, LLC - [STC SA02019SE-D](https://openairdocs.org/stc/SA02019SE-D): Installation of Garmin Model GTN 625/635/650; 725/750 Navigation System. Garmin International Inc - [STC SA12204WI](https://openairdocs.org/stc/SA12204WI): Wing Spar Cap manufacturing process change. Air Tractor Inc - [STC SA03040CH](https://openairdocs.org/stc/SA03040CH): Installation of a digital payload hopper quantity and spray boom pressure indicating system. Reabe Design LLC - [STC SA02031WI](https://openairdocs.org/stc/SA02031WI): Installation of a True Blue Power TB60 Lithium ION Battery to replace the existing lead-acid battery. Wipaire Inc - [STC SA02603SE](https://openairdocs.org/stc/SA02603SE): Installation of a Supplemental Lighting System manufactured and installed. Aviation Specialties Unlimited Inc - [STC SA02738CH](https://openairdocs.org/stc/SA02738CH): Installation of L-3 Communications Avionics Systems. Acron Aviation Inc - [STC SA01240SE](https://openairdocs.org/stc/SA01240SE): Installation of secondary voltage indication system. Visual Instruments LLC - [STC SA01995WI](https://openairdocs.org/stc/SA01995WI): Spray System Installation. See attached FAA Approved Model List (AML) SA01995WI for required data. Aeronautix, LLC - [STC SA04676CH](https://openairdocs.org/stc/SA04676CH): Installation of a True Quantity Gauge System. Reabe Design LLC - [STC SA04568CH](https://openairdocs.org/stc/SA04568CH): Installation of the uAvionix tailBeaconX, a tail mounted position light with integrated Automatic Dependent Surveillance - Broadcast (ADS-B) Out and 1090MHz Mode-S transponder functionality. uAvionix Corporation - [STC SA02658SE](https://openairdocs.org/stc/SA02658SE): Installation of Garmin GI 275 Multi-Function Display System. Garmin International Inc - [STC SA01851WI](https://openairdocs.org/stc/SA01851WI): Installation of a Hydraulic Actuator and Auger. Texas Transland LLC - [STC SA00125IB](https://openairdocs.org/stc/SA00125IB): Installation of the MT-Propeller Entwicklung GmbH model MTV-27-1-E-C-F-R(P)-J/CFR300-82() propeller. MT-Propeller Entwicklung GmbH - [STC SA02266SE](https://openairdocs.org/stc/SA02266SE): Installation of a Lever Throttle Quadrant. Kawak Aviation Technologies Inc - [STC SA01801SE](https://openairdocs.org/stc/SA01801SE): Installation of a Kawak Aviation Technologies auxiliary system, and optional ancillary equipment. Air Repair Inc - [STC SA02444AK](https://openairdocs.org/stc/SA02444AK): Approval of the L-3 Communications NGT 9000/9000R ADS-B system installed. ADS-B Technologies LLC - [STC SA02265SE](https://openairdocs.org/stc/SA02265SE): Installation of a camera housing. Airborne Sensor LLC - [STC SA02430SE](https://openairdocs.org/stc/SA02430SE): Fabrication and installation of a camera housing. Airborne Sensor LLC - [STC SA04514NY](https://openairdocs.org/stc/SA04514NY): Single/Dual Transponder System ADS-B Upgrade. Scandinavian Avionics Design ApS - [STC SA01756WI](https://openairdocs.org/stc/SA01756WI): Installation of a Tail Wheel Modification. Turbine Conversions Ltd - [STC SA01714WI](https://openairdocs.org/stc/SA01714WI): Installation of a Garmin transponders: (a) GTX 330/330D/33/33D with ADS-B Out functionality; (b) GTX 335/335R/345/345R with ADS-B Out and In functionality; or (c) GTX 335R/345R with ADS-B Out functionality in select airplanes installed with G950/G1000 systems. Garmin International Inc - [STC SA00344BO PAGE 2](https://openairdocs.org/stc/SA00344BO%20PAGE%202): Installation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights. Whelen Aerospace Technologies - [STC SA02135SE](https://openairdocs.org/stc/SA02135SE): Installation of Electronics International Inc. Glass Panel Engine Monitor (with In-Flight Data). Electronics International Inc - [STC SA04165NY](https://openairdocs.org/stc/SA04165NY): Installation of Latitude Technologies Skynode S200 Satcom system must be performed. Latitude Technologies Corporation - [STC SA01323CH](https://openairdocs.org/stc/SA01323CH): Installation of a ground single point fueling system. Turbine Conversions Ltd - [STC SA04145NY](https://openairdocs.org/stc/SA04145NY): Installation of the Flight Data Acquisition Storage and Transmission System (Fast). Amtech Aeronautical Limited - [STC SA01560SE](https://openairdocs.org/stc/SA01560SE): Install modified engine cowl per Cascade Flying Service LLC data. Cascade Flying Service LLC - [STC SA02205SE](https://openairdocs.org/stc/SA02205SE): Installation of a replacement airframe fuel pump in accordance with Cascade Flying Service Master Drawing List FW-CFS545-90, Rev. B, dated October 19, 2011, or later FAA approved revision. Cascade Aircraft conversions LLC - [STC SA01745WI](https://openairdocs.org/stc/SA01745WI): Installation of a Cable Cutter System on the Main Landing Gear. Hershey Flying Service Inc - [STC SA04398AT](https://openairdocs.org/stc/SA04398AT): Installation of a Manual Dump Gate Box. Texas Transland LLC - [STC SA01845WI](https://openairdocs.org/stc/SA01845WI): Installation of a Center Windshield. Hershey Flying Services - [STC SA00382BO](https://openairdocs.org/stc/SA00382BO): Installation of Globalstar Antenna and Cradle provisions to support a Globalstar GPS-1700 in non-composite airplanes. Avidyne Corporation - [STC SA02276AK](https://openairdocs.org/stc/SA02276AK): Installation of AMSAFE Aviation Inflatable Restraints. AMSAFE Inc - [STC SA02119SE PAGE 1](https://openairdocs.org/stc/SA02119SE%20PAGE%201): Installation of Garmin GDL 88 ADS-B UAT Transceiver System. Garmin International Inc - [STC SA01969SE](https://openairdocs.org/stc/SA01969SE): Installation of a Mid-Continent MD302 Standby Attitude Module. Mid-Continent Instruments and Avionics - [STC SA01669CH](https://openairdocs.org/stc/SA01669CH): Installation of Challenger Reusable Air Filter. Challenger Aviation Products Inc - [STC ST03554CH](https://openairdocs.org/stc/ST03554CH): Installation of Rotary Gatekeeper and provisions equipment. Turbine Conversions Ltd - [STC SA03199CH](https://openairdocs.org/stc/SA03199CH): Install auto fill fuel system. Wilbur-Ellis LLC - [STC SA09466AC](https://openairdocs.org/stc/SA09466AC): Installation, on AT-602 airplanes, of a hydraulically operated hopper door and hopper, solid, load leveling, auger system. Texas Transland LLC - [STC SA09552AC](https://openairdocs.org/stc/SA09552AC): Installation of a hydraulic actuator to open and close the hopper door and install an auger in the hopper to ensure even distribution of solids during loading. Texas Transland LLC - [STC SA02752AT](https://openairdocs.org/stc/SA02752AT): Installation of the E-Tec ET-107 System that uses a sequential 24V to 48V Fast Start in order to reduce turbine exhaust gas temperatures (EGT) during engine starts. Air Repair Inc - [STC SA02985CH](https://openairdocs.org/stc/SA02985CH): Installation of a Cool Start System in accordance with Installation Instructions , Revision A, dated April 14, 2011, or later FAA Approved revision. Turbine Conversions Ltd - [STC SA00770CH](https://openairdocs.org/stc/SA00770CH): Replace front 30 inches of fiberglass canopy top with L.P. Aero Plastics Inc. acrylic top in accordance with Reabe Aircraft Improvement Inc. Installation Instructions as listed on AML No. SA00770CH, amended January 14, 2011, or later FAA approved revisions. Reabe Aircraft Improvement Inc - [STC SA00068SE](https://openairdocs.org/stc/SA00068SE): Installation of fuel flow/pressure instruments. (W/TSIO-360-MB1). Electronics International Inc - [STC SA02110CH](https://openairdocs.org/stc/SA02110CH): Installation of a Time Trac Data Recorder. P2 Incorporated - [STC SA2693NM](https://openairdocs.org/stc/SA2693NM): Installation of Electronics International digital volt/amp gauges and accessories. Electronics International Inc All 63: https://openairdocs.org/aircraft/N277AT/stcs.md ## Earlier aircraft with N277AT The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N277AT before. - [Cancelled 2011-03-02](https://openairdocs.org/deregistered/N277AT-2011-03-02): Agusta A109S, S/N 22149. Exported to Brazil. Owner: [Wells Fargo Bank Northwest Na Trustee](https://openairdocs.org/faa-owner/WELLS%20FARGO%20BANK%20NORTHWEST%20NA%20TRUSTEE), [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City) - [Cancelled 2007-10-25](https://openairdocs.org/deregistered/N277AT-2007-10-25): Eurocopter France EC120B, S/N 1495, built 2007. Exported to Sweden. Owner: [New Braunfels, TX](https://openairdocs.org/faa-place/TX/New%20Braunfels) ## Related - Other Air Tractor AT-602 aircraft: https://openairdocs.org/model/air-tractor-at-602/aircraft.md - The Pratt & Whitney Canada PT6A-65AG engine: https://openairdocs.org/engine/pratt-whitney-canada-pt6a-65ag.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.