# Twin Commander 690B - Type: Aircraft model (FAA registry) - Registry code: 3970505 - Manufacturer (registry): TWIN COMMANDER AIRCRAFT CORP - Model: 690B - Aircraft type: Fixed wing multi engine - Category: Airplane - Engines: 2 · Turbo-prop - Seats: 10 - Weight class: Up to 12,499 lb - Certification: Type certificated - Data sheet: [TCDS 2A4](https://openairdocs.org/tcds/2A4) (OpenAirDocs) - Holder: Twin Commander Aircraft LLC - Registered aircraft: 1 - Page: https://openairdocs.org/model/twin-commander-690b 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 2013-09-05](https://openairdocs.org/ad/2013-09-05): Fuselage · Twin Commander 690, 690A and 690B. Effective May 29, 2013 - [AD 2009-25-02](https://openairdocs.org/ad/2009-25-02): Upper wing skins · Twin Commander 690, 690A and 690B. Effective Jan 8, 2010 - [AD 2006-15-01](https://openairdocs.org/ad/2006-15-01): Inboard and center aileron hinge fittings · Twin Commander 690, 690A and 690B. Effective Aug 21, 2006 - [AD 2005-18-20](https://openairdocs.org/ad/2005-18-20): "FASTprop" propeller de-icers · Hartzell PHC-C3YF-1RF/F8468A(B,K)-8R constant speed propeller (STC SA00718LA or 17 others). Effective Oct 14, 2005 - [AD 2005-01-19](https://openairdocs.org/ad/2005-01-19): Mode S transponders · GARMIN International GTX 330D, GTX 330, GTX 33D and 830 more. Effective Feb 23, 2005 - [AD 2000-02-30](https://openairdocs.org/ad/2000-02-30): Airframe Pneumatic Deicing Boots · Twin Commander 680, 680-E, 680-F and 15 more. Effective Mar 24, 2000 - [AD 98-08-25 R1](https://openairdocs.org/ad/98-08-25-R1): Nose Landing Gear (NLG) Drag Link Bolt · Twin Commander 500-S, 500-U, 680-F and 9 more. Effective Jan 5, 1999 - [AD 98-20-34](https://openairdocs.org/ad/98-20-34): Airplane Flight Manuals--Severe Icing Conditions · Twin Commander 500, 500-A, 500-B and 24 more. Effective Nov 3, 1998 - [AD 98-14-03](https://openairdocs.org/ad/98-14-03): Transponders · Cessna 172, 172A, 172B and 230 more. Effective Aug 16, 1998 - [AD 98-07-17](https://openairdocs.org/ad/98-07-17): Flap System · Twin Commander 500, 500-A, 500-B and 27 more. Effective May 29, 1998 - [AD 98-08-19](https://openairdocs.org/ad/98-08-19): Wing to Fuselage Attachment Brackets and Straps · Twin Commander 500, 500-A, 500-B and 27 more. Effective May 18, 1998 - [AD 95-19-18](https://openairdocs.org/ad/95-19-18): Turbulent Air Penetration and Maneuvering Speeds · Twin Commander 680-T, 680-V, 680-W and 9 more. Effective Oct 25, 1995 - [AD 95-13-02](https://openairdocs.org/ad/95-13-02): Twin Commander 685, 690, 690A and 5 more. Effective Jul 22, 1995 - [AD 94-04-14](https://openairdocs.org/ad/94-04-14): Spar Cap · Twin Commander 500-S, 500-U, 680-FL(P) and 6 more. Effective Apr 12, 1994 - [AD 94-04-12](https://openairdocs.org/ad/94-04-12): Wing Structure · Twin Commander 685, 690, 690A and 1 more. Effective Apr 12, 1994 - [AD 94-04-11](https://openairdocs.org/ad/94-04-11): Spar Cap · Twin Commander 500-S and 690B. Effective Apr 11, 1994 - [AD 87-24-07 R1](https://openairdocs.org/ad/87-24-07-R1): POH/AFM Revision - Icing · Twin Commander 690, 690A, 690B and 5 more. Effective Feb 9, 1988 - [AD 84-19-05](https://openairdocs.org/ad/84-19-05): Engine Mount Systems · Twin Commander 690, 690A, 690B and 4 more. Effective Oct 8, 1984 - [AD 79-07-02](https://openairdocs.org/ad/79-07-02): Batteries · Aircraft Parts & Development A, A-2, A-3 and 149 more. Effective Apr 3, 1979 - [AD 78-05-06](https://openairdocs.org/ad/78-05-06): Flexible Fuel Cells · Cessna 180, 182, 185 and 98 more. Effective Jun 30, 1978 - [AD 77-03-01](https://openairdocs.org/ad/77-03-01): Left and Right Wing Rivets · Twin Commander 690, 690A and 690B. Effective Feb 16, 1977 Historical (superseded or no longer in force): - [AD 98-08-25](https://openairdocs.org/ad/98-08-25) (historical): Nose Landing Gear (NLG) Drag Link Bolt · Twin Commander 500-S, 500-U, 680-F and 9 more. Effective May 18, 1998 - [AD 96-12-08](https://openairdocs.org/ad/96-12-08) (historical): Nose Landing Gear (NLG) Drag Link Bolt · Twin Commander 500-S, 500-U, 680-F and 8 more. Effective Jun 27, 1996 - [AD 94-04-17](https://openairdocs.org/ad/94-04-17) (historical): Flap System Cable · Twin Commander 500, 500-A, 500-B and 27 more. Effective Apr 15, 1994 ## Information bulletins (advisory) (1) - [SAIB 2023-14](https://openairdocs.org/saib/2023-14): Landing Gear Retract/Extend System. Issued Nov 14, 2023 ## Registered aircraft (1) - [N5016H](https://openairdocs.org/aircraft/N5016H): [Best Aircraft Deals LLC](https://openairdocs.org/faa-owner/BEST%20AIRCRAFT%20DEALS%20LLC), [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City), S/N 11452 ## NTSB investigations None matched to aircraft with this model. ## FAA accident and incident reports None matched to aircraft with this model. ## Service difficulty reports (73, newest 50) As reported by operators and repair stations, by the model named in the report. - [SDR 2025F00176](https://openairdocs.org/sdr/2025F00176), Aug 4, 2025: DRAG BRACE. BROKEN. LEFT MAIN LANDING GEAR DRAG BRACE ASSEMBLY P/N EA1570-501 WAS FOUND CRACKED IN THE UPPER PORTION OF THE DRAG BRACE. CRACK WAS FOUND DURING A PRE FLIGHT INSPECTI - [SDR 2024F00109](https://openairdocs.org/sdr/2024F00109), Mar 8, 2024: WIRE. CHAFED. DURING TRAINING FLIGHT AROUND THE PATTERN ABOVE KFMM PILOT NOTICED FIRE WARNING LIGHT INTERMITTENTLY ILLUMINATED. PILOT REPORTED REDUCING POWER AND LIGHT WOULD - [SDR 2022FA0000295](https://openairdocs.org/sdr/2022FA0000295), Jun 12, 2022: NONE. NONE. THE WHEEL AND BRAKES ON THE LH MAIN LANDING GEAR CAUGHT FIRE DURING A LONG TAXI FOR A DEPARTURE. THE INITIAL PICTURES SHOWED ALL COMPONENTS INTACT. THE AIRCRAFT - [SDR 2019FA0000185](https://openairdocs.org/sdr/2019FA0000185), Jun 1, 2019: BRACE. DAMAGED. WHILE PERFORMING SERVICE LETTER NO. 355, FUSELAGE STATION 386.82 SCREW TORQUE INSPECTION, FOUND BOTH BOLTS ATTACHING BRACES 310024-15 AND 310024-16 TO BRACE 310 - [SDR LAMA20190624531](https://openairdocs.org/sdr/LAMA20190624531), May 31, 2019: TIRE. FLAT. ON LANDING ROLL OUT, THE PIC NOTED A NOISE AND THE AIRCRAFT TENDED TO PULL TO THE LEFT. A VISUAL CONFIRMATION OF A FLAT TIRE ON THE LT MAIN GEAR WAS NOTED. THE - [SDR EHSA2019F00173](https://openairdocs.org/sdr/EHSA2019F00173), Mar 25, 2019: ATTACH BOLT. LOOSE. CRACKS WERE FOUND DURING ROUTINE INSPECTION AT STATION 386.82. THIS SECTION IS LOCATED AT THE FORWARD SECTION OF THE ATTACH POINT FOR THE VERTICAL TAIL. UPON FU - [SDR 7PTA201808040001](https://openairdocs.org/sdr/7PTA201808040001), Aug 1, 2018: ENGINE. POWER LOSS. AFTER TAKE OFF, DURING CLIMB PASSING THROUGH 4000 AGL, THE RIGHT ENGINE LOST POWER. PILOT SHUT THE ENGINE DOWN, FEATHERED THE PROP AND RETURNED TO DEPARTURE. OP - [SDR 2018FA0000138](https://openairdocs.org/sdr/2018FA0000138), Apr 11, 2018: CONTROL CABLE. LOOSE. DURING REQUIRED NEGATIVE TORQUE SYSTEM CHECK FLIGHT, THE RT ENGINE WAS SHUTDOWN AND FAILED TO RE-LIGHT. THE ENGINE WOULD NOT RE-LIGHT DUE TO A FAILURE OF THE AI - [SDR 7PTA2018012500001](https://openairdocs.org/sdr/7PTA2018012500001), Jan 19, 2018: HYDRAULIC LINE. BACKED OUT. LEFT ENGINE HYDRAULIC LINE BETWEEN ENGINE HYD PUMP AND FIREWALL. FITTING AT THE FIREWALL LOOSENED UP AND LEAKED HYD FLUID TO THE POINT THE PILOT GOT A HYP PRESS - [SDR L50R2015FA0000478](https://openairdocs.org/sdr/L50R2015FA0000478), Oct 1, 2015: SHAFT. BROKEN. THE AIRCRAFT EXPERIENCED AN INFLIGHT, UNCOMMANDED NOSE GEAR EXTENSION INTO THE DOWN & LOCKED POSITION. TROUBLESHOOTING IN A MAINTENANCE FACILITY REVEALED THAT T - [SDR 2015F00046](https://openairdocs.org/sdr/2015F00046), Mar 11, 2015: ENGINE. FIRE. AFTER LANDING, PILOT WAS TAXING AND THE LEFT ENGINE FIRE LIGHT CAME ON, THE ENGINE LOST ALL POWER AND FIRE AND SPARKS WERE COMING OUT OF THE TAIL PIPE. VISUAL I - [SDR 2013FA0000060](https://openairdocs.org/sdr/2013FA0000060), Jan 28, 2013: ENGINE. FAILED. IN NORMAL CRUISE AT 3,000 FT MSL, THE LT ENGINE LOST COMPLETE POWER AND SUBSEQUENTLY BEGAN TO NTS (NEGATIVE THRUST SENSING). THE ENGINE WAS INDENTIFIED, VERIFIE - [SDR O9IA2012012400012](https://openairdocs.org/sdr/O9IA2012012400012), Jan 24, 2012: BLOWER MOTOR. BURNED. DURING CLIMBOUT, PILOT SELECTED WINDSHIELD DEFOG. ELECTRIC ODOR IN COCKPIT AND SMOKE SEEN FROM AREA BEHIND INSTRUMENT PANEL. PILOT NOTICED THAT DEFOG BLOWER WAS - [SDR CA120130011](https://openairdocs.org/sdr/CA120130011), Dec 21, 2011: LINE. MISINSTALLED. (CAN) UPON DISCONNECTING COMPONENTS TO REMOVE THE CENTER SECTION BLADDERS, SOME COMPONENTS WERE FOUND TO BE CONNECTED INCORRECTLY. UPON CONSULTING MM TO VERIFY - [SDR 2011FA0000699](https://openairdocs.org/sdr/2011FA0000699), Oct 26, 2011: STRUT. CRACKED. LEFT MAIN GEAR STRUT WAS FLAT, TRIED TO SERVICE, WHEN WE APPLIED NITROGEN PRESSURE HYDRAULIC FLUID CAME OUT OF A 3 INCH LONG CRACK IN THE STRUT BODY AND BEARING - [SDR 2011FA0000320](https://openairdocs.org/sdr/2011FA0000320), May 10, 2011: SKIN. MISREPAIRED. FOUND SB 237 IAW AD 2009-25-2 UPPER WING SKIN, STRAP INSP AND MODIFICATION DONE INCORRECTLY. HARDWARE AND FASTENERS WERE NOT CORRECTLY PLACED AND WERE SUBSTITUT - [SDR 2010FA0001101](https://openairdocs.org/sdr/2010FA0001101), Oct 8, 2010: PULLEY. CHAFED. FLAP PULLEY CHAFES FLAP BRACKET - PREVIOUSLY ADDRESSED IN AD98-07-17 AND SB226. - [SDR 2010FA0001100](https://openairdocs.org/sdr/2010FA0001100), Oct 8, 2010: PULLEY. CHAFED. FLAP PULLEY AND CLIP CHAFE FLAP BRACKET - ADDRESSED PREVIOUSLY IN BOTH AD98-07-17 AND SB226. - [SDR 2010F00211](https://openairdocs.org/sdr/2010F00211), Sep 26, 2010: CONTROL HEAD. BURNED. DME HEAD SHORTED INSIDE CAUSING SMOKE TO BE PULLED INTO AVIONICS VENTILATION SYS AND CIRCULATED TO THE ACFT CABIN. - [SDR NYS2009F00000](https://openairdocs.org/sdr/NYS2009F00000), May 5, 2009: DRAG BRACE. CRACKED. DURING PHASE INSP, FOUND UPPER WEB OF DRAG BRACE CRACKED THRU UPLOCK BRACKET ATTACH HOLE. - [SDR PAI52007S4751](https://openairdocs.org/sdr/PAI52007S4751), Oct 24, 2007: LINE. RUPTURED. HYDRAULIC PRESSURE FLEX LINE AT RT ENGINE DRIVEN HYDRAULIC PUMP RUPTURED IN FLIGHT CAUSING LOSS OF HYDRAULIC FLUID. - [SDR 2007FA0000092](https://openairdocs.org/sdr/2007FA0000092), Jan 15, 2007: TURBINE WHEEL. DAMAGED. INSPECTION OF ENGINE REVEALED DAMAGE TO 3RD STAGE TURBINE ROTOR VISIBLE THROUGH ENGINE TAILPIPE. ENGINE WAS REMOVED FROM AIRCRAFT AND THE TURBINE SECTION MODULE - [SDR 2006FA0000083](https://openairdocs.org/sdr/2006FA0000083), Jan 2, 2006: SKIN. CORRODED. CORROSION BEYOND 10 PERCENT LIMITS IN LEADING EDGE SKIN UNDER BALANCE WEIGHTS. FOUND DURING SB238. (K) - [SDR FTU2004F00003](https://openairdocs.org/sdr/FTU2004F00003), Jun 7, 2004: SPAR. CRACKED. WHILE COMPLYING WITH SB 236. AILERON SPAR IB HINGE INSPECTION AND REINFORECMENT DATED MARCH 9, 2004 PART 1, BOTH AILERON IB SPAR WEBS AT IB HINGE AREA WERE FOUN - [SDR LDI2004F00000](https://openairdocs.org/sdr/LDI2004F00000), Feb 9, 2004: TRUNNION PIN. SEIZED. NOSE GEAR WOULD NOT RETRACT. TRUNNION PINS HAD FROZEN UP. TRUNNION PINS DO NOT HAVE ANY LUBRICATION GREASE ZERTS WHICH COULD HAVE PREVENTED THE NOSE GEAR TRUNNI - [SDR W1J2004F00000](https://openairdocs.org/sdr/W1J2004F00000), Feb 6, 2004: RETAINING RING. OUT OF POSITION. ON 2/6/04 A NORMAL ENGINE RUN AND TAXI WAS BEING PERFORMED. AS WE ATTEMPTED TO TAXI OUT THE LT SIDE SEEMED TO HAVE NO THRUST OR MOVEMENT. WE HEARD A LOUD THUMP - [SDR FTU2003F00004](https://openairdocs.org/sdr/FTU2003F00004), Feb 20, 2003: EXCITER. FAILED. EXCITER BOX HAD INTERMITTENT FAILURE AFTER ONLY BEING IN SERVICE FOR 11.3 HOURS. THIS UNIT WAS ORIGINALLY A MFG BLUE LABELED REMANUFACTURED PART. INSTALLED ANOT - [SDR FTU2003F00002](https://openairdocs.org/sdr/FTU2003F00002), Feb 7, 2003: PUMP. MISMANUFACTURED. WHEN PUMP WAS INSTALLED, IT WAS DISCOVERED THAT THE THREADS ON THE IN AND OUT PORTS WERE STRAIGHT THREAD. THE FITTINGS THAT ARE CALLED OUT IN THE IPC ARE PIPE T - [SDR 2003FA0000516](https://openairdocs.org/sdr/2003FA0000516), Nov 1, 2002: CAP. SEPARATED. SHORTLY AFTER LEVELING OFF AT A CRUISE ALTITUDE OF 16,000 FT, THE AIRCRAFT MADE A HARD UNCOMMANDED TURN TO THE LEFT AND LOST APPROX 1000 FT ALTITUDE BEFORE THE - [SDR 2002FA0001222](https://openairdocs.org/sdr/2002FA0001222), Sep 30, 2002: INDICATOR. DEFECTIVE. NON-LINEAR ERROR GAGE READS COOLER THAN INPUT 5 DEGREE AT 400, 6 DEGREE C 500, 7 DEGREES C 600 AS HIGH AS 10 DEGREE AT TIMES ZERO ERROR AT 200 DEGREE. DEFECT FO - [SDR 2002FA0000924](https://openairdocs.org/sdr/2002FA0000924), Jul 22, 2002: RELAY. FAILED. NR 2 BATTERY MAIN RELAY FAILED CLOSED. THE FAILURE CREATED HEAT DISTRESS AND MELTED THE CONTACTORS WITHIN THE RELAY. - [SDR O9I2002F00002](https://openairdocs.org/sdr/O9I2002F00002), Apr 24, 2002: RIB. CRACKED. DURING A ROUTINE PERIODIC INSPECTION A CRACK WAS FOUND IN VERTICAL STABILIZER BOTTOM RIB (PN 410008197) . THE CRACK RADIATED FROM THE SIDE FLANGE (LEFT) FORWARD - [SDR MV52002F00001](https://openairdocs.org/sdr/MV52002F00001), Mar 18, 2002: MONITOR. FAILED. FUEL QUANTITY INDICATION -0- AT ALL TIMES. REPLACEMENT OF FUEL QUANTITY CONTROL MONITOR CORRECTED INDICATION PROBLEM. - [SDR MV52002F00000](https://openairdocs.org/sdr/MV52002F00000), Nov 26, 2001: TUBE. CRACKED. FORWARD CABIN DOOR STEP TUBE CRACKED AT ROLL PIN (PN MS9048-047) ATTACHMENT. CRACK EXTENDED ONE INCH AFT FROM THE ROLL PIN. - [SDR MV52001F00001](https://openairdocs.org/sdr/MV52001F00001), Oct 19, 2001: SKIN. CRACKED. UPPER FUSELAGE SKIN CRACKED AT COMM ANTENNA MOUNTING BASE LOCATED AT STATION 210, FIVE INCHES LEFT OF AIRCRAFT CENTERLINE. ANTENNA INSTALLATION WAS ORIGINAL FRO - [SDR MV52001F00000](https://openairdocs.org/sdr/MV52001F00000), Aug 10, 2001: ANGLE. CRACKED. ANGLE LOCATED AT LEFT MAIN LANDING GEAR TO WING ATTACH AREA CRACKED AT INBOARD SIDE. CRACK EXTENDED ONE INCH FROM AFT PORTION OF WING AREA FORWARD. - [SDR 20001207SH017](https://openairdocs.org/sdr/20001207SH017), Nov 20, 2000: DRAG BRACE. CRACKED. UPPER PORTION OF DRAG BRACE CRACKED. CRACK EXTENDED APPROXIMATELY .50 INCH. (X) - [SDR 20001130SH003](https://openairdocs.org/sdr/20001130SH003), Nov 9, 2000: SEAT TRACK. CORRODED. PILOT INBOARD SEAT RAIL LOCATED AT THE FLOOR ATTACHMENT HAD EVIDENCE OF CORROSION AT THE AFT ATTACHMENT SCREWS. (X) - [SDR 20001109SH009](https://openairdocs.org/sdr/20001109SH009), Oct 13, 2000: AILERON. CRACKED. DURING INSPECTION, 3 EACH .25 INCH LONG CRACKS WERE FOUND ON THE LEADING EDGE AT THE FASTENERS USED TO SECURE THE AILERON BALANCE WEIGHT. AFTER THE LEADING EDGE - [SDR 20001026SH008](https://openairdocs.org/sdr/20001026SH008), Oct 2, 2000: ARM. CRACKED. ARM ASSY CRACKED AT LANDING GEAR DOOR ATTACH AREA. (X) - [SDR 20000622SH031](https://openairdocs.org/sdr/20000622SH031), Jun 9, 2000: CONTROL CABLE. FRAYED. RIGHT RUDDER CABLES FRAYED. (X) - [SDR 20000524SH014](https://openairdocs.org/sdr/20000524SH014), May 11, 2000: CONTROL CABLE. FRAYED. LEFT AND RIGHT FORWARD RUDDER CABLES HAD BROKEN WIRE STRANDS AT LEFT AND RIGHT PULLEY AT BS 99.00. FOUND DURING 100-HOUR INSPECTION. ROTATED CABLES 10 DEGREES F - [SDR 20000524SH013](https://openairdocs.org/sdr/20000524SH013), May 11, 2000: CONTROL CABLE. BROKEN. LEFT AND RIGHT FORWARD RUDDER CABLES HAD BROKEN WIRE STRANDS AT LEFT AND RIGHT PULLEY AT BS 99.00. FOUND DURING 100-HOUR INSPECTION. ROTATED CABLES 10 DEGREES F - [SDR 20000516SH002](https://openairdocs.org/sdr/20000516SH002), Apr 21, 2000: CHANNEL. CRACKED. AFTER REMOVAL OF BOTH RT AND LT AILERON INBOARD HINGE ASSEMBLIES, FOUND BOTH AILERON ''U'' CHANNELS HAD CRACKS IN THE WEB AROUND THE LOWER HINGE ATTACH BOLTS. S - [SDR 20000516SH001](https://openairdocs.org/sdr/20000516SH001), Apr 21, 2000: CHANNEL. CRACKED. AFTER REMOVAL OF BOTH RT AND LT AILERON INBOARD HINGE ASSEMBLIES, FOUND BOTH AILERON ''U'' CHANNELS HAD CRACKS IN THE WEB AROUND THE LOWER HINGE ATTACH BOLTS. S - [SDR 20000522SH002](https://openairdocs.org/sdr/20000522SH002), Apr 20, 2000: LINE. BROKEN. RIGHT ENGINE WOULD NOT START. FOUND PY LINE BROKEN JUST AFT OF LINE FITTING. REPLACED LINE. (X) - [SDR 99ZZZX4242](https://openairdocs.org/sdr/99ZZZX4242), Oct 18, 1999: CONTROL CABLE. FRAYED. CABLE FOR TRIM CONTROL AT THE COLLINS AUTOPILOT ELEVATOR TRIM SERVO WAS FOUND FRAYED APPROXIMATELY 90 PERCENT THROUGH. - [SDR 99ZZZX14](https://openairdocs.org/sdr/99ZZZX14), Nov 30, 1998: AUTOPILOT. MISINSTALLED. AUTOPILOT WOULD NOT CAPTURE NAV OR SLOW TO CAPTURE. AUTOPILOT WOULD DRIFT FROM PROPER COURSE WHEN CAPTURED. THIS WAS DUE TO INCORRECT HSI MODE RELAY INTERFACE W - [SDR 99ZZZX948](https://openairdocs.org/sdr/99ZZZX948), Nov 1, 1998: TIRE. LEAKING. TIRES WERE REPLACED BECAUSE THEY WOULD NOT HOLD AIR. INSPECTION REVEALED DILATING HOLES ALLOWING AIR LOSS TO CONTINUE AFTER SEVERAL DAYS. LEAKAGE BECAME WORSE T - [SDR 99ZZZX947](https://openairdocs.org/sdr/99ZZZX947), Nov 1, 1998: TIRE. LEAKING. TIRES WERE REPLACED BECAUSE THEY WOULD NOT HOLD AIR. INSPECTION REVEALED DILATING HOLES ALLOWING AIR LOSS TO CONTINUE AFTER SEVERAL DAYS. LEAKAGE BECAME WORSE T All 73: https://openairdocs.org/model/twin-commander-690b/reports.md ## STCs that may be installed (OpenAirDocs) (155, 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 SA02571SE](https://openairdocs.org/stc/SA02571SE): Installation of Garmin G500/G600 TXi Integrated Avionics System (Primary Flight Display, Multi-Function Display, and Engine Indicating System Display). Garmin International Inc - [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 SA1024SO](https://openairdocs.org/stc/SA1024SO): Installation of AiResearch TPE331-5-252K engines replacing AiResearch TPE331-5-251K engines. Carpe Diem Aviation Services of Missouri, Inc. dba CD Aviation Services - [STC SA02511SE](https://openairdocs.org/stc/SA02511SE): Installation of replacement fuel quantity indicator sending unit(s). CiES Inc - [STC SA11158SC](https://openairdocs.org/stc/SA11158SC): Demonstration of aircraft tolerance to potential electromagnetic interference from certain Transmitting Potable Electronic Devices (T-PEDS). Liberty Partners Inc - [STC SA12202IB](https://openairdocs.org/stc/SA12202IB): Installation of Garmin GWX Weather Radar System. Maxcraft Avionics Ltd - [STC SA11300DS](https://openairdocs.org/stc/SA11300DS): Upgrade previously installed Collins Aerospace Radar Altimeter. BHE & Associates Ltd - [STC SA8408SW](https://openairdocs.org/stc/SA8408SW): Replace the o-ring seals in the landing gear lower strut seal. Metrea Special Aerospace ISR Inc - [STC SA02738CH](https://openairdocs.org/stc/SA02738CH): Installation of L-3 Communications Avionics Systems. Acron Aviation Inc - [STC SA04046CH PAGE 2](https://openairdocs.org/stc/SA04046CH%20PAGE%202): Installation of L-3 GENESIS (TM) Electronic Standby Instrument System (ESI-500/MAG-500). Acron Aviation Inc - [STC SA02386AK](https://openairdocs.org/stc/SA02386AK): Replacement of existing landing and/or taxi light reflector and bulbs with Light Emitting Diode (LED) lighting systems. AeroLED's Holding LLC - [STC SA02658SE](https://openairdocs.org/stc/SA02658SE): Installation of Garmin GI 275 Multi-Function Display System. Garmin International Inc - [STC SA02532AT](https://openairdocs.org/stc/SA02532AT): Installation of subject Michelin tires on appropriate aircraft. For Michelin 5, 6, 8, and 10-inch rim diameter tires on General Aviation Aircraft. Michelin North America Inc - [STC SA02010WI](https://openairdocs.org/stc/SA02010WI): Installation of the Mid-Continent Instruments & Avionics MD23 FLEX Custom Function Display (CFD). Mid-Continent Instruments and Avionics - [STC SA497GL](https://openairdocs.org/stc/SA497GL): Install Aircraft Wheel and Brake conversion kit 199-80 (MIL-H-5606 system). Kaman Corporation Aircraft Wheel and Brake LLC - [STC SA1458GL](https://openairdocs.org/stc/SA1458GL): Installation of a Cleveland nose wheel. Kaman Corporation Aircraft Wheel and Brake LLC - [STC SA02203AK](https://openairdocs.org/stc/SA02203AK): Installation of FlightLogic Synthetic Vision Electronic Flight Information System (EFIS-SV). Genesys Aerosystems Inc - [STC SA02254AK](https://openairdocs.org/stc/SA02254AK): Installation of "Single Screen", "2 or 3 Screen", "Dual Screen", or "4 or 6 screen". Genesys Aerosystems 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 SA09856AC](https://openairdocs.org/stc/SA09856AC): Installation of BendixKing Aerowave 100 In-flight Data Link System for non-essential, non-required aircraft Cabin Systems & Equipments. Honeywell International Inc (Bendix King) - [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 SA02265SE](https://openairdocs.org/stc/SA02265SE): Installation of a camera housing. Airborne Sensor LLC - [STC ST01930LA](https://openairdocs.org/stc/ST01930LA): Installation of Sandel Avionics SN4500 Electronic Horizontal Situation Indicator (EHSI). Sandel Avionics LLC - [STC SA02075SE](https://openairdocs.org/stc/SA02075SE): Installation of a Mid-Continent MD835( ) Lithium Ion Battery. Mid-Continent Instrument Co. Inc - [STC SA02426AK](https://openairdocs.org/stc/SA02426AK): Approval of the FreeFlight FDL-978-TX ADS-B system installed. FreeFlight Systems - [STC SA09763DS](https://openairdocs.org/stc/SA09763DS): Installation of an S-TEC 01326 Digital Flight Control System (DFCS). S-TEC Corporation - [STC SA04489NY](https://openairdocs.org/stc/SA04489NY): Installation of Astronics Max-Viz Enhanced Vision System. Air Spray (1967) Ltd - [STC SA10236SC](https://openairdocs.org/stc/SA10236SC): Installation of a GDC 31 Roll Steering Converter. DAC International Inc - [STC SA01452CH](https://openairdocs.org/stc/SA01452CH): Installation of an air ambulance conversion kit. Med-Pac Inc - [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 SA4583SW](https://openairdocs.org/stc/SA4583SW): Installation of an electrically-driven Vapor Cycle, Freon or Refrigerant R-134a, Air Conditioning System. Air Comm 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 SA00098SE](https://openairdocs.org/stc/SA00098SE): Installation of emergency medical stretcher, oxygen, and electrical systems. LifePort LLC - [STC SA00765DE](https://openairdocs.org/stc/SA00765DE): Installation of Automatic Dependent Surveillance Broadcast (ADS-B) Out functionality using the BendixKing KT74 Transponder and qualified position sensor. Peregrine - [STC SA04165NY](https://openairdocs.org/stc/SA04165NY): Installation of Latitude Technologies Skynode S200 Satcom system must be performed. Latitude Technologies Corporation - [STC SA02153LA-D PAGE 2](https://openairdocs.org/stc/SA02153LA-D%20PAGE%202): Installation of Garmin G600 Primary Flight Display (PFD) and Multifunction Display (MFD) System. Garmin International Inc - [STC SA02503AK](https://openairdocs.org/stc/SA02503AK): Installation of AMSAFE State of the Art Restraint System (SOARS) inflatable restraints. AMSAFE Inc - [STC SA02013CH](https://openairdocs.org/stc/SA02013CH): Installation of Avidyne Corporation Traffic Advisory System (TAS). Avidyne Corporation - [STC SA01933LA-D](https://openairdocs.org/stc/SA01933LA-D): Installation of Garmin Model 400W / 500W Series GPS-WAAS Navigation System. Garmin International Inc - [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 SA00343BO](https://openairdocs.org/stc/SA00343BO): Installation of a single configuration or a dual configuration Avidyne Corporation Integrated Flight Display, Model IFD540 loaded with Release 10.0 software (or later FAA approved release). Avidyne Corporation - [STC SA00352BO PAGE 2](https://openairdocs.org/stc/SA00352BO%20PAGE%202): Installation of an Avidyne Corporation Mode A/C/S Transponder with ADS-B Out capability, Model AXP340 loaded with Version 3.13 software (or later FAA approved version),. Avidyne Corporation - [STC SA1847WE](https://openairdocs.org/stc/SA1847WE): Installation of Brittain Up-Command Signal Adapter Kit. Brittain Industries, Inc - [STC SA1177GL](https://openairdocs.org/stc/SA1177GL): Install Aero Medical Products Mfg., Inc. Air Ambulance Stretcher P/N 125 using Installation Kit P/N 800 in accordance with Installation and Operating Instructions, Form EA 109K, dated April 23, 2001, or later FAA approved revisions. The Medical Oxygen System Kit P/N 807 is an FAA approved option. The Inverter/Pump Kit No. 812 may be installed in accordance with Inverter/Pump Installation Instructions, EA Form 170, dated June 9, 2001, or later FAA approved revisions. Paul/ Lanna Egan LLC - [STC SA00149BO](https://openairdocs.org/stc/SA00149BO): Installation of Aircraft Components, Inc. Volt and Vac Alert System, P/N 2044-1. Aircraft Components Inc - [STC SA02547AT](https://openairdocs.org/stc/SA02547AT): Installation of a Voice Alert System. Aircraft Components Inc - [STC SA03658AT](https://openairdocs.org/stc/SA03658AT): Installation of a Voice Alert System to incorporate as primary annunciators for stall and gear warnings. Aircraft Components Inc All 155: https://openairdocs.org/model/twin-commander-690b/stcs.md ## The same model under other registry codes Amateur-built copies and renamed makers get their own codes. - [Rockwell International 690B](https://openairdocs.org/model/rockwell-international-690b): 59 registered aircraft, registry code 7630516 - [Aero Commander 690B](https://openairdocs.org/model/aero-commander-690b): 0 registered aircraft, registry code 0141723 --- 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.