# Grumman G-73 - Type: Aircraft model (FAA registry) - Registry code: 3951802 - Manufacturer (registry): GRUMMAN - Model: G-73 - Aircraft type: Fixed wing multi engine - Category: Airplane - Engines: 2 · Reciprocating - Seats: 12 - Weight class: 12,500 to 19,999 lb - Cruise speed: 165 mph - Certification: Type certificated - Data sheet: [TCDS A-783](https://openairdocs.org/tcds/A-783) (OpenAirDocs) - Holder: Frakes Aviation - Registered aircraft: 13 - Page: https://openairdocs.org/model/grumman-g-73 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 2006-01-51](https://openairdocs.org/ad/2006-01-51): Corrosion of the wings from wing station (WS) 77L · Frakes G-73. Effective Jan 17, 2006 - [AD 99-19-07](https://openairdocs.org/ad/99-19-07): AFM - Limitation Section - Ice Protection System · Frakes G-73. Effective Dec 27, 1999 - [AD 98-04-33](https://openairdocs.org/ad/98-04-33): AFM - Limitations Section - Icing · Frakes G-73. Effective Mar 25, 1998 - [AD 97-13-03](https://openairdocs.org/ad/97-13-03): AFM - Limitations Section · Frakes G-73 with STC SA2323WE. Effective Jul 25, 1997 - [AD 97-01-12](https://openairdocs.org/ad/97-01-12): Ground Proximity Warning System · Airtell International Ground Proximity Warning System, Mystere-Falcon 200, EMB-110P1 and 20 more. Effective Feb 25, 1997 - [AD 87-25-08](https://openairdocs.org/ad/87-25-08): Elevator Control System · Frakes G-73. Effective Jan 19, 1988 - [AD 80-13-02](https://openairdocs.org/ad/80-13-02): Placard-Engine Fire Emergency Procedures · Frakes G-73. Effective Jun 20, 1980 - [AD 48-03-04](https://openairdocs.org/ad/48-03-04): Landing Gear Hydraulic Hose · Frakes G-73 ## Information bulletins (advisory) (1) - [SAIB NM-06-18](https://openairdocs.org/saib/NM-06-18): . Issued Dec 23, 2005 ## Registered aircraft (13) - [N12YZ](https://openairdocs.org/aircraft/N12YZ): [Tanglefoot Wing & Wheel Co](https://openairdocs.org/faa-owner/TANGLEFOOT%20WING%20%26%20WHEEL%20CO), [Coolin, ID](https://openairdocs.org/faa-place/ID/Coolin), built 1946, S/N J2 - [N130FB](https://openairdocs.org/aircraft/N130FB): [Mayes John](https://openairdocs.org/faa-owner/MAYES%20JOHN), [Carson City, NV](https://openairdocs.org/faa-place/NV/Carson%20City), built 1947, S/N J-30 - [N168WS](https://openairdocs.org/aircraft/N168WS): [Pantechnicon Aviation Ltd](https://openairdocs.org/faa-owner/PANTECHNICON%20AVIATION%20LTD), [Minden, NV](https://openairdocs.org/faa-place/NV/Minden), built 1946, S/N J-5 - [N1888T](https://openairdocs.org/aircraft/N1888T): [Good Aviation LLC](https://openairdocs.org/faa-owner/GOOD%20AVIATION%20LLC), [Oshkosh, WI](https://openairdocs.org/faa-place/WI/Oshkosh), built 1947, S/N J31 - [N188AC](https://openairdocs.org/aircraft/N188AC): [Tanglefoot Wing And Wheel Co](https://openairdocs.org/faa-owner/TANGLEFOOT%20WING%20AND%20WHEEL%20CO), [Coolin, ID](https://openairdocs.org/faa-place/ID/Coolin), built 1951, S/N J57 - [N2945](https://openairdocs.org/aircraft/N2945): [Somers Charles Michael](https://openairdocs.org/faa-owner/SOMERS%20CHARLES%20MICHAEL), [Hillsboro, OR](https://openairdocs.org/faa-place/OR/Hillsboro), built 1946, S/N J-8 - [N2950](https://openairdocs.org/aircraft/N2950): [Hamilton Steven T](https://openairdocs.org/faa-owner/HAMILTON%20STEVEN%20T), [Reno, NV](https://openairdocs.org/faa-place/NV/Reno), built 1947, S/N J-13 - [N54GZ](https://openairdocs.org/aircraft/N54GZ): [Pacific Flying Boats Inc](https://openairdocs.org/faa-owner/PACIFIC%20FLYING%20BOATS%20INC), [Middletown, DE](https://openairdocs.org/faa-place/DE/Middletown), built 1950, S/N J54 - [N611SS](https://openairdocs.org/aircraft/N611SS): [Mayes John](https://openairdocs.org/faa-owner/MAYES%20JOHN), [Carson City, NV](https://openairdocs.org/faa-place/NV/Carson%20City), built 1946, S/N J-11 - [N632SS](https://openairdocs.org/aircraft/N632SS): [Spitfire Venture LLC](https://openairdocs.org/faa-owner/SPITFIRE%20VENTURE%20LLC), [San Antonio, TX](https://openairdocs.org/faa-place/TX/San%20Antonio), S/N J32 - [N7356](https://openairdocs.org/aircraft/N7356): [Mayes John](https://openairdocs.org/faa-owner/MAYES%20JOHN), [Carson City, NV](https://openairdocs.org/faa-place/NV/Carson%20City), built 1950, S/N J56 - [N775WA](https://openairdocs.org/aircraft/N775WA): [Yanks Air Museum](https://openairdocs.org/faa-owner/YANKS%20AIR%20MUSEUM), [Baldwin Park, CA](https://openairdocs.org/faa-place/CA/Baldwin%20Park), built 1947, S/N J21 - [N98BS](https://openairdocs.org/aircraft/N98BS): [Lac Management](https://openairdocs.org/faa-owner/LAC%20MANAGEMENT), [New York, NY](https://openairdocs.org/faa-place/NY/New%20York), built 1947, S/N J-18 ## NTSB investigations (21) 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 DCA06MA010](https://openairdocs.org/ntsb/DCA06MA010), Dec 19, 2005: Grumman G-73T (N2969), Miami, FL, destroyed, 20 fatal. Probable cause: The in-flight failure and separation of the right wing during normal flight, which resulted from (1) the failure of the Chalk's Ocean Airways maintenance program to identify and properly repair… - [NTSB MIA02WA063](https://openairdocs.org/ntsb/MIA02WA063), Feb 16, 2002: Grumman G-73T (N130FB), Paradise Island, Bahamas, substantial damage - [NTSB MIA98IA001](https://openairdocs.org/ntsb/MIA98IA001), Oct 1, 1997: Grumman G-73 (N168WS), Fort Lauderdale, FL, incident, minor damage. Probable cause: the partial failure of a component of the hydraulic system resulting in the collapse of the nose landing gear during the landing roll. - [NTSB MIA94FA097](https://openairdocs.org/ntsb/MIA94FA097), Mar 18, 1994: Grumman G-73T (N150FB), Key West, FL, destroyed, 2 fatal. Probable cause: FAILURE OF THE PILOT-IN-COMMAND TO ASSURE THE BILGES WERE ADEQUATELY PUMPED FREE OF WATER (ADEQUATELY PREFLIGHTED), WHICH RESULTED IN THE AFT CENTER OF GRAVITY LIMIT TO BE EXCEEDED, AND FAILURE OF… - [NTSB MIA87WA225](https://openairdocs.org/ntsb/MIA87WA225), Aug 14, 1987: Grumman G-73-T (N2969), Bimini, Bahamas, incident, no damage - [NTSB MIA87FA013](https://openairdocs.org/ntsb/MIA87FA013), Oct 28, 1986: Grumman G-73 (N604SS), St. Croix, substantial damage, 1 fatal - [NTSB MIA85IA155](https://openairdocs.org/ntsb/MIA85IA155), Apr 24, 1985: Grumman G-73-T (N632SS), St. Croix, incident, minor damage - [NTSB MIA84IA147](https://openairdocs.org/ntsb/MIA84IA147), Apr 17, 1984: Grumman G-73T (N2969), Ft. Lauderdale, FL, incident, minor damage - [NTSB MIA84IA077](https://openairdocs.org/ntsb/MIA84IA077), Feb 10, 1984: Grumman G-73 (N2969), West Palm Beach, FL, incident, no damage - [NTSB LAX79FA024](https://openairdocs.org/ntsb/LAX79FA024), Jan 14, 1979: Grumman G73 (N95DF), Catlina, CA, destroyed - [NTSB MIA76OM002](https://openairdocs.org/ntsb/MIA76OM002), Jul 12, 1975: Grumman G-73 (N3010), Bimini, Burkina Faso, substantial damage - [NTSB MIA75AM039](https://openairdocs.org/ntsb/MIA75AM039), Dec 26, 1974: Grumman G-73 (N7306), Miami, FL, substantial damage - [NTSB ANC74AA034](https://openairdocs.org/ntsb/ANC74AA034-143071), Sep 30, 1974: Grumman G-73 (N2965), Missing Aircraft, destroyed, 4 fatal - [NTSB MIA73FKT94](https://openairdocs.org/ntsb/MIA73FKT94), May 7, 1973: Grumman G-73 (N7306), Miami, FL, substantial damage - [NTSB LAX67A0110](https://openairdocs.org/ntsb/LAX67A0110), May 27, 1967: Grumman G-73 (N2968), Avalon, CA, destroyed, 1 fatal - [NTSB MKC67A0064](https://openairdocs.org/ntsb/MKC67A0064), May 3, 1967: Grumman G-73 (N298GB), Huron, SD, substantial damage - [NTSB NYC67A0156](https://openairdocs.org/ntsb/NYC67A0156), Apr 11, 1967: Grumman G-73 (N2964), Ossining, NY, substantial damage - [NTSB ANC66A0024](https://openairdocs.org/ntsb/ANC66A0024), Dec 20, 1965: Grumman G-73 (N1208), Bethel, AK, substantial damage - [NTSB ANC65I0030](https://openairdocs.org/ntsb/ANC65I0030), Dec 4, 1964: Grumman G-73 (N1208), Bethel, AK, incident, minor damage - [NTSB UNK64X0993](https://openairdocs.org/ntsb/UNK64X0993), Mar 20, 1964: Grumman G73 (N2954), West Palm Bc, FL, substantial damage - [NTSB UNK64X0992](https://openairdocs.org/ntsb/UNK64X0992), Mar 20, 1964: Grumman G73 (N2954), W Palm Beach, FL, substantial damage ## FAA accident and incident reports (23) 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. - [Incident 20140424005089I](https://openairdocs.org/incident/20140424005089I), Apr 24, 2014: Grumman G-73 (N98BS), Bridgeport, CT, Minor damage. On April 24,2014, @ 1640 EDT, N98BS, a Grumman G-73 - mallard operated by [privacy data omitted], was landing at Sikorsky Memorial Airport Bridgeport CT (bdr)… - [Incident 20081117852139I](https://openairdocs.org/incident/20081117852139I), Nov 17, 2008: Gulstm G73 (N7356), Sutcliffe, NV, No damage. (-23) During a flight from wmc to rno, and during the cruise phase of operation, the left engine experienced a significant loss of power. An emergency landing… - [Accident 20051219032779A](https://openairdocs.org/incident/20051219032779A), Dec 19, 2005: Gulstm G73 (N2969), Miami, FL, Destroyed, 20 fatal. (-23) Inflight separation of right wing after takeoff from water. - [Incident 20041112032599I](https://openairdocs.org/incident/20041112032599I), Nov 12, 2004: Gulstm G73 (N2969), Ft Lauderdale, FL, Minor damage. (-23) When landing gear was extended there was a loud bang from the left maingear area. Crew investigated, and found upper section of left main gear separated… - [Incident 20020921029089I](https://openairdocs.org/incident/20020921029089I), Sep 21, 2002: Gulstm G73 (N2969), Ft Lauderdale, FL, Minor damage. (-23) Flying boat inc. flight 501 was on a flight from pid (paradise island-bahamas) to fll (ft. Lauderdale, Florida) when the crew noticed hydraulic quantity… - [Incident 19971001045069I](https://openairdocs.org/incident/19971001045069I), Oct 1, 1997: Gulstm G73 (N168WS), Ft Lauderdale, FL, Minor damage. Scraping noise rollout followed by nosegear collapse. The landing gear selector valve was by passing fluid. - [Incident 19970704029589I](https://openairdocs.org/incident/19970704029589I), Jul 4, 1997: Gulstm G73 (N2945), Winters/Davis/W, CA, Substantial damage. Narrative: upon arrival at ksql, pilot discovered a total hydraulic failure. After attempting to pump the landing gear down, all three gears became unlocked… - [Accident 19940318005829A](https://openairdocs.org/incident/19940318005829A), Mar 18, 1994: Gruman G73T (N150FB), Key West, FL, Destroyed, 2 fatal. Moored to dock several hours. Observed to pitch up on water takeoff. Had failed check bilge or use pumps reflight. - [Incident 19920103007689I](https://openairdocs.org/incident/19920103007689I), Jan 3, 1992: Gulstm G73 (N653SS), San Juan, Puerto Rico, Minor damage. Unable to lower and lock gear down. Landed gear up. Found outflow fitting on the hydraulic pump leaking at washers. - [Incident 19880602045879I](https://openairdocs.org/incident/19880602045879I), Jun 2, 1988: Gulstm G73 (N1888T), Utica, NY, Minor damage. Peported hydraulic problem. Nose gear slowly collapsed on rollout. Found a damaged pressure line. - [Incident 19870814062149I](https://openairdocs.org/incident/19870814062149I), Aug 14, 1987: Gulstm G73 (N2969), Bimini, FL. Forced landing on open sea after pilots mismanaged the fuel system. Attempted to feed both engines from right tank. - [Accident 19861028052119A](https://openairdocs.org/incident/19861028052119A), Oct 28, 1986: Gulstm G73 (N604SS), St Croix, U.S. Virgin Islands, Substantial damage, 1 fatal. The amphibian impacted the water after aileron cable was burned through by electrical short. Improper maintenance. - [Incident 19850424061969I](https://openairdocs.org/incident/19850424061969I), Apr 24, 1985: Gulstm STCG73 (N632SS), Christiansted S, U.S. Virgin Islands, Minor damage. During water takeoff run, a propeller electrical terminal block failed and penetrated window. Faulty design. - [Incident 19840210010739I](https://openairdocs.org/incident/19840210010739I), Feb 10, 1984: Gulstm G73 (N2969), West Palm Beach, FL. Lost elevator trim while descending. Extreme shaking of control column. Found shaft sheared at actuator rivet hold. - [Incident 19800803066819I](https://openairdocs.org/incident/19800803066819I), Aug 3, 1980: Gulstm G73 (N3010), Opa Locka, FL, Minor damage. Gear collapsed after landing with failed hydraulics. - [Accident 19790114005669A](https://openairdocs.org/incident/19790114005669A), Jan 14, 1979: Gulstm G73 (N95DF), Santa Catalina, CA, Substantial damage. Attempted Water take off with 2 to 3 ft swells. Hit a swell,knocked off left wing and engine. Acrft sank. - [Incident 19790108001329I](https://openairdocs.org/incident/19790108001329I), Jan 8, 1979: Gulstm G73 (N7356), Pahokee, FL, Substantial damage. Right gear collapsed after normal landing. Second landing since gear was overhauled. - [Incident 19781022029689I](https://openairdocs.org/incident/19781022029689I), Oct 22, 1978: Gulstm G73 (N7356), St Thomas, U.S. Virgin Islands. Pilot diverted due to a rough engine. A cylinder had cracked and the exhaust valve was stuck closed. - [Incident 19780925018089I](https://openairdocs.org/incident/19780925018089I), Sep 25, 1978: Gulstm G73 (N7356), Charlotte Amali, U.S. Virgin Islands, Minor damage. Engine began to run rough. Returned to harbor. Uneventful water landing. - [Incident 19780811037329I](https://openairdocs.org/incident/19780811037329I), Aug 11, 1978: Gulstm G73 (N7356), Christiansted, U.S. Virgin Islands, Minor damage. Aircraft struck object during water landing, took on water. - [Accident 19750712026929A](https://openairdocs.org/incident/19750712026929A), Jul 12, 1975: Gruman G73 (N3010), Bimini, Substantial damage. Investigation under the jurisdiction of the govt of bahama. - [Accident 19741226043639A](https://openairdocs.org/incident/19741226043639A), Dec 26, 1974: Gruman G73 (N7306), Miami, FL, Substantial damage. Hit wake of boat,porpoised.PIC un correct situation. - [Accident 19730507015399A](https://openairdocs.org/incident/19730507015399A), May 7, 1973: Gruman G73 (N7306), Miami, FL, Substantial damage. Amphibian. Lndd at pvt seaplane base,manually extndd gr to ramp taxi. Gr indcr inop. ## Service difficulty reports (14) As reported by operators and repair stations, by the model named in the report. - [SDR FVY2004F00000](https://openairdocs.org/sdr/FVY2004F00000), Nov 29, 2004: CONTROL CABLE. FAILED. PILOT REPORTS THAT ELEVATOR CONTROL WAS UNAVAILABLE IN FLIGHT AND UNABLE TO ACHIEVE NOSE DOWN POSITION WITHOUT TRIM. MAINTENANCE INSPECTED ELEVATOR CABLES. REMO - [SDR AUS20040149](https://openairdocs.org/sdr/AUS20040149), Mar 2, 2004: PUMP. FAILED. (AUS) RT HYDRAULIC PUMP FAILED. INVESTIGATION FOUND A FINE BROWN COATING OVER THE SURFACE OF THE PUMP. SUSPECT PUMP OVERHEATED. - [SDR 2002F00987](https://openairdocs.org/sdr/2002F00987), Aug 31, 2002: ENGINE. FAILED. LEFT ENGINE FAILED ON TAKEOFF FROM PDI. AIRCRAFT TAXIED BACK TO RAMP AND PASSENGERS DEPLANED. MAINTENANCE WAS DISPATCHED TO PDI TO INVESTIGATE. PROPELLER AND EN - [SDR 2002F01096](https://openairdocs.org/sdr/2002F01096), Jul 9, 2002: VALVE. LEAKING. ON TAKEOFF FROM BIMINI, HYDRAULIC FLUID WAS SEEPING OUT OF THE INERTIAL DOOR SEPARATOR HANDLES. THE FIRST OFFICER WHO WAS IN COMMAND WAS SPRAYED WITH HYDRAULIC - [SDR AUS20020143](https://openairdocs.org/sdr/AUS20020143), Feb 11, 2002: FILTER. CRACKED. (AUS) HYDRAULIC FILTER HOUSING CRACKED CIRCUMFERENTIALLY IN THREADED AREA. LOSS OF HYDRAULIC FLUID. VENT / DUMP VALVE ALSO FAULTY DUE TO A SPLIT O-RING SEAL. - [SDR AUS20010765](https://openairdocs.org/sdr/AUS20010765), Jun 8, 2001: BEARING. FAILED. (AUS) RH ENGINE FAILED. CAUSED BY FAILURE OF SUPERCHARGER SUPPORT BEARING. - [SDR EY2R9600818](https://openairdocs.org/sdr/EY2R9600818), Jun 1, 1996: HUB. CORRODED. PILOT TUBES REMOVED & REPLACED. - [SDR EY2R9600817](https://openairdocs.org/sdr/EY2R9600817), Jun 1, 1996: CLAMP. CORRODED. CLAMP CORRODED. - [SDR EY2R9600816](https://openairdocs.org/sdr/EY2R9600816), Jun 1, 1996: BEARING. CORRODED. BEARING CORRODED. - [SDR EY2R9600480](https://openairdocs.org/sdr/EY2R9600480), Mar 1, 1996: CLAMP. CORRODED. CLAMP CORRODED. - [SDR EY2R9600479](https://openairdocs.org/sdr/EY2R9600479), Mar 1, 1996: STEEL BALL. CORRODED. STEEL BALL CORRODED. - [SDR EY2R9600478](https://openairdocs.org/sdr/EY2R9600478), Mar 1, 1996: BEARING. CORRODED. BEARING CORRODED. - [SDR AU960325](https://openairdocs.org/sdr/AU960325), Feb 4, 1996: PANEL. FAULTY. (AUS) WING CENTRE SECTION TOP HAT SECTIONS FOUND IN ANNEALED (SOFT) CONDITION FOLLOWING HEAT TREATMENT - SUSPECT HEAT TREATMENTINCOMPLETE - [SDR AU960190](https://openairdocs.org/sdr/AU960190), Feb 2, 1996: GOVERNOR. FAULTY. (AUS) RH ENGINE PROPELLER GOVERNOR TRANSFER VALVE FAULTY - VALVE ALLOWED FEATHER PUMP PRESSURE TO PARTIALLY BYPASS PREVENTING UNFEATHERING OF PROPELLER ## STCs that may be installed (OpenAirDocs) (47) 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 ST01305WI-D](https://openairdocs.org/stc/ST01305WI-D): Modification of a Collins ALT-50A or ALT-55B Radio Altimeter system installation to a Collins ALT-1000 or ALT-4000 Radio Altimeter system installation in accordance with Collins Drawing Index as listed on AML No. ST01305WI-D, Revision -, or later FAA approved revision. Rockwell Collins Inc - [STC SA02511SE](https://openairdocs.org/stc/SA02511SE): Installation of replacement fuel quantity indicator sending unit(s). CiES Inc - [STC SA39CH](https://openairdocs.org/stc/SA39CH): Installation of an Amphibian Landing Gear Position Advisory System/Laser Gear Advisory System. Wipaire Inc - [STC SA651GL](https://openairdocs.org/stc/SA651GL): Install Cleveland (Parker Hannifin) wheel and brake conversion kit, P/N 199-113. Kaman Corporation Aircraft Wheel and Brake LLC - [STC SA01967WI](https://openairdocs.org/stc/SA01967WI): Use of GAMI G100UL High Octane Unleaded Avgas. General Aviation Modifications Inc - [STC SA10236SC](https://openairdocs.org/stc/SA10236SC): Installation of a GDC 31 Roll Steering Converter. DAC International Inc - [STC SA02268CH](https://openairdocs.org/stc/SA02268CH): Installation of Airwolf Filter Corp. Air Oil Separator. Airwolf Filter Corporation - [STC SA6070NM](https://openairdocs.org/stc/SA6070NM): Installation of a 'quick-disconnect drain plug' on the engine rocker sump for the oil drain retrieval system after engine shutdown. West Coast Air Creations - [STC SA319SW](https://openairdocs.org/stc/SA319SW): Structural installation of McMillan 7501XM radome and RCA AVQ-55 antenna mount. Associated Air Center, Inc. - c/o CT Corporation System - [STC SA01282NY](https://openairdocs.org/stc/SA01282NY): Installation of Airwolf remote mounted engine oil filter kit AFC-K015 on aircraft powered by Pratt & Whitney radial reciprocating engine Series R-985, R-1340 and R-1830. Airwolf Filter Corporation - [STC ST334CH](https://openairdocs.org/stc/ST334CH): Installation of Superflite 102 fabric. Aviation Products Systems Inc - [STC ST00673WI-D](https://openairdocs.org/stc/ST00673WI-D): Modification of Collins VHF-22A/VHF-22B VHF COMM Receiver Transmitter with CTL-22 Control Pro Line II System Installation to a Collins VHF-22C/VHF-22D VHF COMM Receiver Transmitter with CTL-22C Control 8.33 kHz Pro Line II System installation. Rockwell Collins Inc - [STC SA4005NM](https://openairdocs.org/stc/SA4005NM): Precise Flight Inc. Pulselite Control System. Precise Flight Inc - [STC SA1054GL](https://openairdocs.org/stc/SA1054GL): Removal of P/N 213763 propeller synchrophaser control box and electrical connector, and installation of P/N A213796 control box, electrical connector, and remote switch. Ontic Engineering and Manufacturing Inc - [STC ST01142WI-D](https://openairdocs.org/stc/ST01142WI-D): Modification of a single or dual Collins TDR-94 or TDR-94D Mode S Transponder System installation with CTL-92 control head to a Flight ID capable Collins TDR-94 or TDR-94D Mode S Transponder System installation with CTL-92E control head. Rockwell Collins Inc - [STC SA4383SW-D](https://openairdocs.org/stc/SA4383SW-D): Installation of Model AK976, an autopilot with 1C753 yaw damper system. Tom R. Tracy - [STC SA8075SW](https://openairdocs.org/stc/SA8075SW): Installation of fiberglass covering. (M-62 SERIES PT-19) (G-73 SCHWEIZER). Razorback Fabrics Inc - [STC SA1008WE](https://openairdocs.org/stc/SA1008WE): Installation of Poly-Fiber covering material. Poly-Fiber Inc - [STC SA614SO](https://openairdocs.org/stc/SA614SO): Installation of nose wheel shimmy damper. Gander Aircraft Corp - [STC SA635SO](https://openairdocs.org/stc/SA635SO): Reduction of maximum certificated takeoff weight from 12,750 to 12,500 pounds. Franklin Dean H - [STC ST01698AT](https://openairdocs.org/stc/ST01698AT): Installation of a Collins 'Safety Package' (TCAS II, Mode S transponder, and turbulence/weather radar). East Coast Avionics, Inc - [STC ST00982AT-D](https://openairdocs.org/stc/ST00982AT-D): Installation and operation of a Bendix/King CAS 66 A TCAS I System installed. Pan Am (Air Bridge) - [STC ST01559AT](https://openairdocs.org/stc/ST01559AT): Installation of an AlliedSignal MK-VI Ground Proximity Warning System (GPWS). Pan Am (Air Bridge) - [STC SA1-546](https://openairdocs.org/stc/SA1-546): Install B.F. Goodrich type 21 pump type pneumatic de-icer system. B.F. Goodrich - [STC ST00474AT-D](https://openairdocs.org/stc/ST00474AT-D): Installation and operation of an Airtell Centaurus 3 ground proximity warning system. Chalk's International Airlines, Inc - [STC SA00165AT](https://openairdocs.org/stc/SA00165AT): Installation of 13 passenger interior arrangement. Hill Air Company - [STC SA3323SO](https://openairdocs.org/stc/SA3323SO): Deactivation of windshield wiper and landing light systems. Jetaire Services, Inc - [STC SA3234SO](https://openairdocs.org/stc/SA3234SO): Installation of Lexan replacement windshield and cockpit window. (G-73 S/N J-27, J-36, J-42, J-44, J-30). Jetaire Services, Inc - [STC SA3288SO](https://openairdocs.org/stc/SA3288SO): Installation of 13 passenger seat interior modification. Banyan Air Services, Inc - [STC SA2323WE](https://openairdocs.org/stc/SA2323WE): Increase in gross weight and installation of United Aircraft of Canada, Ltd., PT6A-27 or PT6A-34, or PT6A-34AG engines. Frakes Aviation, Inc - [STC SA3131SO](https://openairdocs.org/stc/SA3131SO): Installation of a Fairchild cockpit voice recorder. Chalk's International Airlines, Inc - [STC SA3007SO](https://openairdocs.org/stc/SA3007SO): Installation of a pulsed landing light system. Chalk's International Airlines, Inc - [STC SA4-1554](https://openairdocs.org/stc/SA4-1554): Structure modification to improve access to fuel tanks for stripping and resealing. Rogerson ATS - [STC SA7417SW](https://openairdocs.org/stc/SA7417SW): Installation of Century Flight Systems Model AK976 automatic flight system consisting of Century 2000 autopilot with1C753-205 yaw damper system. Century Flight Systems Inc - [STC SA2208SO](https://openairdocs.org/stc/SA2208SO): Fabrication and installation of landing gear indicator proximity switches. Chalk's International Airlines, Inc - [STC SA4410SW](https://openairdocs.org/stc/SA4410SW): Installation of 17 passenger configuration, seats, emergency exit, and floor modification. Frakes Aviation, Inc - [STC SA5845SW](https://openairdocs.org/stc/SA5845SW): Avionics Installation. Frakes Aviation, Inc - [STC SA1351WE](https://openairdocs.org/stc/SA1351WE): Replace existing fabric on wings, fuselage, empennage, and/or control surfaces, with Ceconite101 material. (262A Series -12). Ceconite Inc - [STC SA412GL](https://openairdocs.org/stc/SA412GL): Installation of Parker Hannifin conversion kit P/N 199-81. Parker Hannifin Corp - [STC SA4555SW](https://openairdocs.org/stc/SA4555SW): Removal of cabin windows and installation of new double paned windows. Frakes Aviation, Inc - [STC SA36NE](https://openairdocs.org/stc/SA36NE): Install Edison continuous loop fire detection system. Armtec Industries, Inc - [STC SA310EA](https://openairdocs.org/stc/SA310EA): Fabrication of new passenger seats and necessary cabin interior modifications. Aero Trades Inc - [STC SA292EA](https://openairdocs.org/stc/SA292EA): Pump type pneumatic deicer system. BF Goodrich Airport Operations - [STC SA3-165](https://openairdocs.org/stc/SA3-165): Two 100-ampere Eclipse 30E16-1 generators. General Motors - [STC SA3-194](https://openairdocs.org/stc/SA3-194): Sonotone sintered-plate Alkaline Nickel-Cadmium battery. Sherwood George W - [STC SA3-22](https://openairdocs.org/stc/SA3-22): Hull step fairing. Briggs Manufacturing Company - [STC SA1-490](https://openairdocs.org/stc/SA1-490): Opening in leading edge of right- hand wing for passing light installation. Aero Trades, Inc --- 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.