# Cessna-Macone 305A - Type: Aircraft model (FAA registry) - Registry code: 2074031 - Manufacturer (registry): CESSNA-MACONE - Model: 305A - Aircraft type: Fixed wing single engine - Category: Airplane - Engines: 1 · Reciprocating - Seats: 2 - Weight class: Up to 12,499 lb - Cruise speed: 108 mph - Certification: Type certificated - Data sheet: [TCDS 5A5](https://openairdocs.org/tcds/5A5) (OpenAirDocs) - Holder: Regal Air Inc. - Registered aircraft: 1 - Page: https://openairdocs.org/model/cessna-macone-305a 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 75-04-04](https://openairdocs.org/ad/75-04-04): Oil Line System · Regal Air 305A with STC SA504SW or SA568SW ## Registered aircraft (1) - [N22SU](https://openairdocs.org/aircraft/N22SU): [Heritage Flight Museum](https://openairdocs.org/faa-owner/HERITAGE%20FLIGHT%20MUSEUM), [Burlington, WA](https://openairdocs.org/faa-place/WA/Burlington), built 1975, S/N 2 ## NTSB investigations (2) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB NYC82DA146](https://openairdocs.org/ntsb/NYC82DA146), Jul 9, 1982: Cessna 305A (N22SU), Morrisville, VT, substantial damage - [NTSB NYC80DNA13](https://openairdocs.org/ntsb/NYC80DNA13), Jun 13, 1980: Cessna 305A (N22SU), Plymouth, MA, substantial damage ## FAA accident and incident reports (2) From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [Accident 19820709032359A](https://openairdocs.org/incident/19820709032359A), Jul 9, 1982: Cessna L19 (N22SU), Morrisville, VT, Substantial damage. Wind picked up left wing and then dropped on left gear causing it to collapse. - [Accident 19800613022469A](https://openairdocs.org/incident/19800613022469A), Jun 13, 1980: Cessna 305A (N22SU), Plymouth, MA, Substantial damage. Pilot lost directional control on landing. ## Service difficulty reports (33) As reported by operators and repair stations, by the model named in the report. - [SDR CA150806002](https://openairdocs.org/sdr/CA150806002), Aug 2, 2015: MAGNETO. INTERMITTENT. (CAN) PILOT REPORTED EXCESSIVE LT MAG DROP DURING RUN-UP PROCEDURE, 200RPM. CONFIRMED MAG DROP. INVESTIGATION REVEALED LT MAG ONLY OPERATING INTERMITTENTLY. REM - [SDR CA150508014](https://openairdocs.org/sdr/CA150508014), Nov 6, 2014: REINFORCEMENT. CRACKED. (CAN) CRACK FOUND ON RT REINFORCEMENT PLATE, STEEL. BULKHEAD UNDER THE REINFORCEMENT PLATE CRACKED AS WELL. CAUSE UNKNOWN BUT MANY CYCLES DONE IN THE LAST 20 YE - [SDR CA130516008](https://openairdocs.org/sdr/CA130516008), May 10, 2013: CYLINDER HEAD. BROKEN. (CAN) BULGE WAS FOUND IN NR 2 CYLINDER ROCKER BOX COVER. INSPECTION REVEALED EXHAUST SIDE ROCKER PIN SUPPORT BOSS/JOURNAL BROKEN. 2 EQUAL PARTS OF THE OUTSIDE R - [SDR CA121129003](https://openairdocs.org/sdr/CA121129003), Nov 28, 2012: HINGE. FAILED. (CAN) THE CARBURATOR AIR BOX ASSY WAS INSTALLED UNDER STC SA1201SW. IT IS SUSPECTED THAT WHILE THE ENGINE IS RUNNING ON THE GROUND, THE ALTERNATE DOOR IS CONSTA - [SDR CA121108011](https://openairdocs.org/sdr/CA121108011), Nov 1, 2012: HINGE. WORN. (CAN) THE CARBURATOR AIR BOX ASSY WAS INSTALLED UNDER THE STC SA1201SW. IT IS SUSPECTED THAT WHILE THE ENGINE IS RUNNING ON THE GROUND, THE ALTERNATE DOOR IS CO - [SDR CA101213004](https://openairdocs.org/sdr/CA101213004), Dec 2, 2010: STUD. SEPARATED. (CAN) ITEM IS EXHAUST CABIN HEATER INSPECTED AS PER CF 90-03. FLIGHT CREW FOUND DAMAGED SPARK PLUG IN CYLINDER NR 2. REMOVED DUE TO DAMAGE ON CYLINDER HEAD AND - [SDR 2010FA0000192](https://openairdocs.org/sdr/2010FA0000192), Feb 19, 2010: FUEL TANK. CONTAMINATED. PILOT REPORTED THAT ENGINE QUIT ON CLIMB, AND HE WAS ABLE TO LAND ON THE REMAINING RUNWAY. ENGINE RESTARTED EASILY WITH PRIMING AND HAD RUN UP WELL BEFORE TAKEO - [SDR CA060207005](https://openairdocs.org/sdr/CA060207005), Feb 7, 2006: AXLE. CRACKED. (CAN) DURING A STRUCTURAL INSPECTION, A CRACK WAS FOUND IN RADIUS OF PART WHERE THE CYLINDER PORTION MEET THE BLOCK WHERE THE BOLTS ARE. BOTH AXLES (QTY 2) WERE - [SDR CA050729003](https://openairdocs.org/sdr/CA050729003), Jul 22, 2005: PUMP. FAILED. DURING INSPECTION RUN-UP, THE FUEL PRESSURE DROPPED TO 3 PSI AT IDLE (NORMAL PRESSURE IS 12 PSI). THE ENGINE HAD DIFFICULTY RUNNING. THE PART WAS REMOVED AND RE - [SDR CA050609010](https://openairdocs.org/sdr/CA050609010), May 23, 2005: PISTON. BROKEN. (CAN) DURING FLIGHT, MOMENTARY DROP IN OIL PRESSURE WAS NOTED. DURING NEXT OIL CHANGE, SIGNIFICANT AMOUNTS OF METAL AND CARBON WERE NOTED IN OIL SCREEN. DUE TO - [SDR SPT](https://openairdocs.org/sdr/SPT), Oct 8, 2003: CHARGER. BURNED. PURCHASED A 24 VOLT CHARGER ABOUT 6 MONTHS AGO. IT WAS A PRISM BRAND IMPORTED BY CSB BATTERY IN FT. WORTH. IT WAS ADVERTISED NOT TO OVERCHARGE IF LEFT CONNECTED - [SDR CA031107008](https://openairdocs.org/sdr/CA031107008), Sep 11, 2003: GUIDE. LOOSE. (CAN) DURING INSPECTION, IT WAS NOTED THAT THE INTAKE GUIDES WERE LEAKING OIL. THE SPRINGS WERE REMOVED TO MEASURE THE GUIDE HEIGHTS. THERE ARE NOW SHORTER GUID - [SDR CA031107006](https://openairdocs.org/sdr/CA031107006), Sep 11, 2003: GUIDE. LOOSE. (CAN) DURING INSPECTION, IT WAS NOTED THAT THE INTAKE GUIDES WERE LEAKING OIL.THE SPRINGS WERE REMOVED TO MEASURE THE GUIDE HEIGHTS.THERE ARE NOW SHORTER GUIDES - [SDR CA031107005](https://openairdocs.org/sdr/CA031107005), Sep 11, 2003: GUIDE. LOOSE. (CAN) OTHER CYLINDERS INSTALLED ON THIS ENGINE DID NOT HAVE THE INTAKE GUIDE SEALS INSTALLED. (SHORTER GUIDES REQUIRES SEALS, WHILE LONGER GUIDES DO NOT REQUIRE - [SDR 2002FA0000728](https://openairdocs.org/sdr/2002FA0000728), May 24, 2002: CYLINDER. FAILED. (CYLINDER) FOUND HEAD OF CYLINDER NR6 SEPARATING FROM THE BARREL AT THE THREADED PORTION OF HEAD. VERIFIED ENGINE TIMING WAS CORRECT. NO EVIDENCE OF DETONATION - [SDR CA010821005](https://openairdocs.org/sdr/CA010821005), Aug 11, 2001: ALTERNATOR. FAILED. (CAN) ALTERNATOR WENT OFF LINE. UPON REMOVAL OF THE ALTERNATOR WAS NOTICED THAT THE SPLINE GEAR WAS SHEARED. THE DRIVE SHAFT WAS ALSO SHEARED IN THE THREADED PO - [SDR CA010627044](https://openairdocs.org/sdr/CA010627044), Jun 22, 2001: ALTERNATOR. FAILED. (CAN) ALTERNATOR REMOVED FROM AIRCRAFT AFTER PILOT REPORTED NO INDICATION OF CHARGE AFTER HIS LAT LANDING. AFTER MAKING A FEW TESTS, IT WAS DETERMINED THAT THE - [SDR CA010627042](https://openairdocs.org/sdr/CA010627042), Jun 22, 2001: ALTERNATOR. FAILED. (CAN) ALTERNATOR REMOVED FROM AIRCRAFT AFTER PILOT REPORTED NO INDICATION OF CHARGE AFTER HIS LAST LANDING. AFTER MAKING A FEW TEST, IT WAS DETERINED THAT THE A - [SDR CA010703037](https://openairdocs.org/sdr/CA010703037), Jun 15, 2001: RETAINER. CRACKED. (CAN) ALTERNATOR REMOVED FROM A/C ENGINE FOR INVESTIGATION AND TO SEE IF RETAINER CUP WAS DAMAGED. LOOKING AT THE ALTERNATOR SPLINE GEAR AND DRIVE SHAFT, EVIDEN - [SDR CA010703038](https://openairdocs.org/sdr/CA010703038), Jun 14, 2001: RETAINER. FAILED. (CAN) ALTERNATOR REMOVED FROM A/C ENGINE FOR INST ON A NEW ENGINE FOR THIS A/C. NO PILOT RPTED LOSS OF CHARGE BEFORE ENGINE WAS STOPPED FOR HIS TBO. SMALL PIECE - [SDR CA010703039](https://openairdocs.org/sdr/CA010703039), Jun 13, 2001: RETAINER CUP. FAILED. (CAN) ALTERNATOR REMOVED FROM A/C AFTER PILOT REPORTED NO INDICATION OF CHARGE AFTER HIS LAST LANDING. SMALL PIECES OF METAL AND RUBBER FELL OFF THE ACCESSORIES - [SDR CA010621003](https://openairdocs.org/sdr/CA010621003), May 24, 2001: ALTERNATOR. FAILED. (CAN) ALTERNATOR WS REMOVE TO CHECK FOR INSTALLATION OF NUT AND SPLINE DRIVE. COTTER PINE WAS BROKEN AND NUT WAS BACKED OFF ON SPLINE. BOTH THE NUT AND COTTER P - [SDR CA010621004](https://openairdocs.org/sdr/CA010621004), May 18, 2001: ALTERNATOR. FAILED. (CAN) ALTERNATOR WENT OFF LINE AND WOULD NO LONGER SUPPLY POWER. THE ALTERNATOR WAS REMOVED FOR REPLACEMENT. THE ALTERNATOR WAS RETURNED TO THE MANUFACTURER FOR - [SDR CA010621006](https://openairdocs.org/sdr/CA010621006), Apr 25, 2001: ALTERNATOR. FAILED. (CAN) ALTERNATOR WENT OFF LINE AND WOULD NO LONGER SUPPLY POWER. THE ALTERNATOR WAS REMOVED FOR REPLACEMENT. IT WAS NOTED THAT THE ALTERATOR DID HAVE A NUT INST - [SDR CA010621005](https://openairdocs.org/sdr/CA010621005), Apr 20, 2001: ALTERNATOR. FAILED. (CAN) ALTERNATOR WAS REMOVED TO CHECK FOR INSTALLATION OF NUT ON SPLINE DRIVE. COTTOR PIN WAS BROKEN AND NUT WAS BACKED OFF THE SPLINE. BOTH THE NUT AND COTTER - [SDR CA010621007](https://openairdocs.org/sdr/CA010621007), Apr 19, 2001: ALTERNATOR. FAILED. (CAN) ALTERNATOR WENT OFF LINE AND WOULD NO LONGER SUPPLY POWER. THE ALTERNATOR WS REMOVED FOR REPLACEMENT. IT WAS NOTED THAT THE ALTERNATOR DID NOT HAVE A NUT - [SDR CA010214027](https://openairdocs.org/sdr/CA010214027), Jan 25, 2001: HINGE. CRACKED. (CAN) WING FLAP HINGE INBOARD FOUND CRACKED AT BOTH LOWER FLANGES THAT ATTACH TO THE SPAR. PART REPLACED WITH NEW. - [SDR 99ZZZX4391](https://openairdocs.org/sdr/99ZZZX4391), Oct 30, 1999: SPRING. BROKEN. SPRING, PN 3222, BROKE AT BEND CAUSING TAIL WHEEL STEERING TO RIGHT TO BE INAFFECTIVE. - [SDR CA980930004](https://openairdocs.org/sdr/CA980930004), Sep 21, 1998: CONTROL CABLE. CHAFED. (CAN) AILERON CABLE FOUND WITH BROKEN STRANDS. ON REMOVAL, NUMEROUS STRANDS WERE FOUND WORN AND BROKEN. - [SDR CA980325003](https://openairdocs.org/sdr/CA980325003), Mar 9, 1998: SPRING. BROKEN. (CAN) SPRING WAS BEING REMOVED FOR INSTALLATION ON ANOTHER AIRCRAFT. NO INDICATION THAT THE SPRING WAS BROKEN. REPLACED. - [SDR CA980325001](https://openairdocs.org/sdr/CA980325001), Mar 5, 1998: SPRING. BROKEN. (CAN) OIL PUMP SPRING BROKE INTO 5 PARTS DURING FLIGHT. THIS RESULTED IN A DROP IN OIL PRESSURE OF APPROXIMATELY 8-10 PSI, WHICH REMAINED LOW. AS THIS SPRING WA - [SDR 95ZZZX3535](https://openairdocs.org/sdr/95ZZZX3535), Jul 11, 1995: CONTROL CABLE. FAILED. THE ELEVATOR CABLE FAILED AT THE BULKHEAD PULLEY AT STA 110, BEHIND REAR SEAT DUE TO CABLE WEAR AND POSSIBLE PULLEY BINDING. CHECK OF SIMILAR AIRCRAFT SHOWED SA - [SDR 95ZZZX3534](https://openairdocs.org/sdr/95ZZZX3534), Jul 11, 1995: CONTROL CABLE. FAILED. THE ELEVATOR CABLE FAILED AT THE BULKHEAD PULLEY AT STA 110, BEHIND REAR SEAT DUE TO CABLE WEAR AND POSSIBLE PULLEY BINDING. CHECK OF SIMILAR AIRCRAFT SHOWED SA ## STCs that may be installed (OpenAirDocs) (103, 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 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 SA12406WI](https://openairdocs.org/stc/SA12406WI): Installation of a Garmin AXIS Flight Display System. Garmin International Inc - [STC SA04652CH](https://openairdocs.org/stc/SA04652CH): To allow use of 100R grade aviation fuel meeting Swift Fuel, LLC specification. Swift Fuels LLC - [STC SA00079NY](https://openairdocs.org/stc/SA00079NY): Installation of Airwolf remote mounted engine oil filter kit AFC-K008 on single and multi engine fixed wing light aircraft incorporating Teledyne Continental reciprocating engines of 450 horsepower or less. Airwolf Filter Corporation - [STC SA2918NM](https://openairdocs.org/stc/SA2918NM): Attach a casting to the landing gear fuselage attach angles just above main landing gear legs. McFarlane Aviation LLC - [STC SA00081NY](https://openairdocs.org/stc/SA00081NY): Installation of Iceman Aviation Supplies, Inc. Carburetor Ice Detector. Alcor LLC - [STC SA11841BO](https://openairdocs.org/stc/SA11841BO): Installation of T3 Tailwheel Suspension System suspension. T3 Tailwheel Suspension System - [STC SA02594SE](https://openairdocs.org/stc/SA02594SE): SkyView HDX Instrumentation and Autopilot System manufactured. Dynon Avionics - [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 SA3-370](https://openairdocs.org/stc/SA3-370): Installation of Wipaire Skis Inc. Model 3000 (Aircraft Skis) (FluiDyne) (Fli-Lite) Main ski. F.Atlee Dodge Aircraft Services - [STC SA01967WI](https://openairdocs.org/stc/SA01967WI): Use of GAMI G100UL High Octane Unleaded Avgas. General Aviation Modifications Inc - [STC SA01015SE](https://openairdocs.org/stc/SA01015SE): Installation of eligible Alaska Bushwheel, Inc. wheels and TSO-C62d tires. ABI LLC - [STC SA11174SC PAGE 2](https://openairdocs.org/stc/SA11174SC%20PAGE%202): Installation of BendixKing by Honeywell KSN 770 and KSN 765 WAAS LPV approach capable nav/comm systems. Honeywell International Inc (Bendix King) - [STC SA00410BO](https://openairdocs.org/stc/SA00410BO): Installation of an AV-30-C Multi-Mode Indicator. uAvionix Corporation - [STC SA03286CH](https://openairdocs.org/stc/SA03286CH): Install an electronic engine ignition system. Electroair Acquisition Corporation - [STC SA04032CH](https://openairdocs.org/stc/SA04032CH): Install rocker switch assemblies. Electroair Acquisition Corporation - [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 SA02212AK](https://openairdocs.org/stc/SA02212AK): Replacement of existing landing and/or taxi light reflector and bulbs with high intensity discharge (HID) lighting systems. Seaplanes North LLC - [STC SA02428SE](https://openairdocs.org/stc/SA02428SE): Installation of an Air Stream Switch for an electric time recording device on non-pressurized aircraft. Henry F Rogers/David E Polley - [STC SA00780SE](https://openairdocs.org/stc/SA00780SE): Installation of the True Lock Safety Retention Axle Lock Nut System. True Lock LLC - [STC SA1702SW](https://openairdocs.org/stc/SA1702SW): Install 26 gallon fuel tanks. Noyes Enterprises - [STC SA4305WE](https://openairdocs.org/stc/SA4305WE): Installation of GAR-AERO wheel adapters and tundra type tires on the main landing gear. Seaplanes North LLC - [STC SA505SW](https://openairdocs.org/stc/SA505SW): Installation of McCauley 1A200FM propeller. Stephen Noyes - [STC SA2162NM](https://openairdocs.org/stc/SA2162NM): Installation of the Precise Flight stand-by vacuum system (SVS). Precise Flight Inc - [STC SA02283SE PAGE 1](https://openairdocs.org/stc/SA02283SE%20PAGE%201): Installation of Electronics International Inc. Glass Panel Engine Monitor (with In Flight Data) CGR-30P. Electronics International Inc - [STC SA02402SE PAGE 1](https://openairdocs.org/stc/SA02402SE%20PAGE%201): Installation of Electronics International Inc. Glass Panel Engine Monitor (with In-Flight Data) CGR-30C. Electronics International Inc - [STC SA02428AK](https://openairdocs.org/stc/SA02428AK): Installation of a hydraulically actuated ski drag assembly. Northern Airframes LLC - [STC SA00432SE](https://openairdocs.org/stc/SA00432SE): Installation of EGT 701 series fuel flow instrument. J P Instruments - [STC SA00861SE](https://openairdocs.org/stc/SA00861SE): Installation of J.P. Instruments (JPI) fuel flow indicating system. J P Instruments - [STC SA01026SE](https://openairdocs.org/stc/SA01026SE): Improved fuel gascolator assembly. Steve's Aircraft - [STC SA1201SW](https://openairdocs.org/stc/SA1201SW): Lycoming O-540-A4B5 engine. Noyes Enterprises - [STC ST00961LA](https://openairdocs.org/stc/ST00961LA): Installation of MASS Systems fire extinguisher cartridges as replacements for Walter Kidde Aerospace fire extinguisher cartridges in fire extinguisher bottles installed in the airplane models noted on the FAA Approved Model List dated June 29, 2000, or later FAA approved revisions. These fire extinguisher cartridges are in accordance with the MASS Systems Master Drawing List No. 30980-1, "Slug Thrower Cartridges Master Drawing List", Revision N/C, dated June 26, 2000, or later FAA approved revisions. AMETEK AMERON LLC d/b/a MASS Systems - [STC SA1315WE](https://openairdocs.org/stc/SA1315WE): Installation of Mixture Monitor (exhaust gas temperature probe, gage and selector) in accordance with Delta Products Part Lists A-192 and A-193, or in accordance with Tri-Star Corporation Mixture Monitor Installation Instructions dated December 9, 1981, or later FAA approved revision and/or Drawing List MM-127 dated November 15, 1981, or later FAA approved revision in aircraft models listed in Master Eligibility List P-80-A-6 revised March 29, 1968, copy attached, or later FAA approved revision. Universal Corporation - [STC SA2109SO](https://openairdocs.org/stc/SA2109SO): Installation of Teledyne Continental Motors Model IO-470K engine in accordance with Colemill Enterprises Installation Instructions for Modification of Cessna Model 305-A-C-D-F Revised April 24, 1987 and Colemill Enterprises Drawing No. 3000 Revision A dated May 6, 1987. Mike Jones Aircraft Sales Inc - [STC SA281SW](https://openairdocs.org/stc/SA281SW): Installation of gravity flow fuel system, carburetor heater system, and fuel selector valve in accordance with Ector Aircraft Company Drawing No. 271000 dated 9/16/1963; 72000 Rev. 2/18/1964, Ector Aircraft Drawings dated 10/16/1963 and 7/1/1963, or later FAA approved revisions and seven photographs. Or Installation of gravity flow fuel system, carburetor heater system, and fuel selector valve in accordance with Air Repair, Inc. Engineering Report AR063 dated May 12, 2009, or later FAA approved revision. Steve Noyes - [STC SA00068SE](https://openairdocs.org/stc/SA00068SE): Installation of fuel flow/pressure instruments. (W/TSIO-360-MB1). Electronics International Inc - [STC SA2693NM](https://openairdocs.org/stc/SA2693NM): Installation of Electronics International digital volt/amp gauges and accessories. Electronics International Inc - [STC SA01988SE](https://openairdocs.org/stc/SA01988SE): Installation of Electronics International Inc. Glass Panel Engine Monitor (with In-Flight Data) MVP-50P. Electronics International Inc - [STC SA02033AT](https://openairdocs.org/stc/SA02033AT): Modification to install an air-oil separator to prevent oil from being aspirated from the engine breather line. M-20 Oil Separators LLC - [STC SA01032WI](https://openairdocs.org/stc/SA01032WI): Installation of external aerodynamic Vortelator Kit on airplanes. Aircraft Development Co - [STC SA4005NM](https://openairdocs.org/stc/SA4005NM): Precise Flight Inc. Pulselite Control System. Precise Flight Inc - [STC SA10005SC](https://openairdocs.org/stc/SA10005SC): Installation of airflow register into baggage compartment cover and insert a screened vent into empennage inspection plate. Plane Plastics Ltd - [STC SA353SW](https://openairdocs.org/stc/SA353SW): Conversion of aircraft for parachute jumping operations. Stephen Noyes - [STC SA504SW](https://openairdocs.org/stc/SA504SW): Rerouting of oil to oil cooler and addition of extra cooler. Stephen Noyes - [STC SA657SW](https://openairdocs.org/stc/SA657SW): Installation of cowl flaps. Stephen Noyes - [STC SA1058SW](https://openairdocs.org/stc/SA1058SW): Installation of Frantz oil filter. Stephen Noyes - [STC SA295SW](https://openairdocs.org/stc/SA295SW): Three-place configuration. Stephen Noyes - [STC SA656SW](https://openairdocs.org/stc/SA656SW): Installation of modified Continental O-470-13 engine, McCauley 2A36C18 propeller, exhaust system mod, battery relocation, and Woodward 210 series propeller governor. STC SA504SW, SA568SW, and SE699SW are required with this mod. Stephen Noyes - [STC SA2557NM](https://openairdocs.org/stc/SA2557NM): Installation of KS Avionics EGT/CHT-2( ) combined exhaust gas and cylinder head temperature monitoring system. K S Avionics Inc. Lists 305 Series - [STC SA01735SE](https://openairdocs.org/stc/SA01735SE): Installation of 27-gallon extended range wing fuel tanks. Del-Air All 103: https://openairdocs.org/model/cessna-macone-305a/stcs.md ## The same model under other registry codes Amateur-built copies and renamed makers get their own codes. - [Cessna 305A](https://openairdocs.org/model/cessna-305a): 166 registered aircraft, registry code 2074002 - [Cessna Ector 305A](https://openairdocs.org/model/cessna-ector-305a): 20 registered aircraft, registry code 2073902 - [Cessna 305A (O-1A)](https://openairdocs.org/model/cessna-305a-o-1a): 2 registered aircraft, registry code 2074040 - [Cessna Claassen 305A(0-1A)](https://openairdocs.org/model/cessna-claassen-305a-0-1a): 2 registered aircraft, registry code 207408K - [Cessna/Whitehouse 305A](https://openairdocs.org/model/cessna-whitehouse-305a): 1 registered aircraft, registry code 2074000 - [Cessna Allardice 305A](https://openairdocs.org/model/cessna-allardice-305a): 1 registered aircraft, registry code 207408D - [Cessna-Vansant Interprises-Inc 305A](https://openairdocs.org/model/cessna-vansant-interprises-inc-305a): 1 registered aircraft, registry code 207408E - [Cessna-Morse 305A](https://openairdocs.org/model/cessna-morse-305a): 1 registered aircraft, registry code 207408F - [Cessna/Hansen 305A](https://openairdocs.org/model/cessna-hansen-305a): 0 registered aircraft, registry code 2074019 - [Cessna/Allardice 305A](https://openairdocs.org/model/cessna-allardice-305a): 0 registered aircraft, registry code 2074025 --- 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.