# N73: 1988 Beech 300

- Status: Valid registration
- Airframe: [Beech 300](https://openairdocs.org/model/beech-300) (registry code 1152930, 19 seats)
- Engine: [Pratt & Whitney PT6A series](https://openairdocs.org/engine/pratt-whitney-pt6a-series) (registry code 52032)
- Data sheets: [TCDS A24CE](https://openairdocs.org/tcds/A24CE) (Textron Aviation Inc.) (OpenAirDocs)
- Serial number: FF-8
- Year built: 1988
- Type: Fixed wing multi engine
- Engine type: Turbo-prop
- Airworthiness: Standard, normal
- Airworthiness date: July 7, 1999
- Certificate issued: September 1, 1988
- Expires: April 30, 2028
- Mode S code: A9C8B1
- Registered owner: [Federal Aviation Administration](https://openairdocs.org/faa-owner/FEDERAL%20AVIATION%20ADMINISTRATION)
- Location: [Oklahoma City, OK](https://openairdocs.org/faa-place/OK/Oklahoma%20City)
- Owner type: Government
- Owner's area on the map: 35.3806° N, 97.6484° W: Placed by OpenAirDocs at the center of ZIP code 73169, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=73
- Page: https://openairdocs.org/aircraft/N73

From the FAA registry file of October 22, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination. The registry lists only the engine series, so ADs for every Pratt & Whitney PT6A model are included.

## ADs that may apply (OpenAirDocs): 59 in force

### Matched by airframe (Beech 300)

- [AD 2025-07-01](https://openairdocs.org/ad/2025-07-01): Air Data Computer · Synthetic Vision Electronic Flight Information System (Arrow STC SR09595RC or ST01523WI). Effective May 15, 2025
- [AD 2023-10-02](https://openairdocs.org/ad/2023-10-02): Indicating/Recording System, Navigation · Boeing 18, 23, 35 and 1,060 more. Effective May 26, 2023
- [AD 2022-03-23](https://openairdocs.org/ad/2022-03-23): Rudder Control System · Garmin G1000 Integrated Avionics System and GFC 700 Automatic… (STC SA01535WI-D). Effective Feb 22, 2022
- [AD 2006-16-18 R1](https://openairdocs.org/ad/2006-16-18-R1): Installing a warning placard on the TAWS/RMI · Airbus A300 B2-1A, A300 B2-1C, A300 B2-203 and 100 more. Effective Jul 18, 2008
- [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 2005-01-18](https://openairdocs.org/ad/2005-01-18): Fuselage stringers · Textron 200, 200C, 200CT and 24 more. Effective Mar 1, 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 2005-01-04](https://openairdocs.org/ad/2005-01-04): Fuel hose · Textron 100, 200, 200C and 29 more. Effective Feb 22, 2005
- [AD 2004-23-02](https://openairdocs.org/ad/2004-23-02): Nose Landing Gear (NLG) Fork · Textron 100, 1900, 1900C and 50 more. Effective Dec 23, 2004
- [AD 2004-17-02](https://openairdocs.org/ad/2004-17-02): Cross shaft attach bolt · Textron 100, 1900, 1900C and 52 more. Effective Oct 4, 2004
- [AD 2004-08-15](https://openairdocs.org/ad/2004-08-15): TAWS8000 terrain awareness warning systems (TAWS) · Cessna 421, 500, 501 and 18 more. Effective Jun 7, 2004
- [AD 2003-02-03](https://openairdocs.org/ad/2003-02-03): Airstair door and emergency exits · Textron 100, 200, 2000 and 46 more. Effective Mar 7, 2003
- [AD 2002-23-11](https://openairdocs.org/ad/2002-23-11): Elevator Balance Weight Attachment Screws · Textron 1900, 1900C, 1900C (C-12J) and 30 more. Effective Jan 10, 2003
- [AD 99-09-10](https://openairdocs.org/ad/99-09-10): Landing Gear Hand Pump · Textron 200CT, 300, A200CT (C-12D) and 19 more. Effective Jun 7, 1999
- [AD 98-25-02](https://openairdocs.org/ad/98-25-02): Top-mounted Antenna · Bell Helicopter Textron Canada 407, 172, 172A and 243 more. Effective Dec 22, 1998
- [AD 98-21-35](https://openairdocs.org/ad/98-21-35): Actuator Clevis Assembly in Main Landing Gear · Textron 200T, 300, A200CT (C-12D) and 15 more. Effective Nov 23, 1998
- [AD 98-08-20](https://openairdocs.org/ad/98-08-20): Autopilot Servo Actuators · Alliedsignal Avionics Autopilot Servo Actuators, Mystere-Falcon 20 - C5, Mystere-Falcon 20 - D5 and 17 more. Effective Jun 2, 1998
- [AD 98-04-24](https://openairdocs.org/ad/98-04-24): AFM - Limitations Section - Icing · Textron 100, 300, 58 and 13 more. Effective Mar 13, 1998
- [AD 97-25-03](https://openairdocs.org/ad/97-25-03): AFM - Limitations - Power Levers · Textron 100, 1900, 1900C and 44 more. Effective Jan 21, 1998
- [AD 97-25-01](https://openairdocs.org/ad/97-25-01): Outflow/Safety Valve · Textron 100, 200, 2000 and 38 more. Effective Jan 11, 1998
- [AD 97-23-17](https://openairdocs.org/ad/97-23-17): Pneumatic Tubing · Textron 200, 200C, 200CT and 30 more. Effective Dec 29, 1997
- [AD 94-01-06](https://openairdocs.org/ad/94-01-06): Traffic Alert and Collision Avoidance System II Processors · Airbus A300 B2-1A, A300 B2-1C, A300 B2-203 and 176 more. Effective Feb 4, 1994
- [AD 93-04-02](https://openairdocs.org/ad/93-04-02): Transponders · BAE Systems ATP, CL-600-2A12 (CL-601), DHC-8-101 and 23 more. Effective Mar 26, 1993
- [AD 93-01-20](https://openairdocs.org/ad/93-01-20): Aft Cowling Doors · Textron 300. Effective Mar 10, 1993
- [AD 92-15-01](https://openairdocs.org/ad/92-15-01): Truss-To-Firewall Bolts · Textron 100, 200, 200C and 40 more. Effective Aug 21, 1992
- [AD 92-06-11](https://openairdocs.org/ad/92-06-11): Autopilot/Flight Director System Wiring · Textron 1900C, 300, B200 and 2 more. Effective Mar 30, 1992
- [AD 91-12-11](https://openairdocs.org/ad/91-12-11): Side Windows · Textron 200, 200C, 200CT and 7 more. Effective Jul 15, 1991
- [AD 91-12-10](https://openairdocs.org/ad/91-12-10): Wing Spar Attachment · Textron 300, 300LW, B200 and 2 more. Effective Jul 15, 1991
- [AD 89-19-04 R1](https://openairdocs.org/ad/89-19-04-R1): Wing Fuel Bay Skin Panels · Textron 200, 200C, 200CT and 6 more. Effective Jul 9, 1990
- [AD 90-08-17](https://openairdocs.org/ad/90-08-17): Fuselage Moisture Drain System · Textron 100, 200, 200C and 32 more. Effective May 7, 1990
- [AD 90-06-13](https://openairdocs.org/ad/90-06-13): Vertical Gyro · Bombardier DHC-8-101, DHC-8-102, DHC-8-103 and 14 more. Effective Mar 30, 1990
- [AD 89-22-14](https://openairdocs.org/ad/89-22-14): Aileron Flutter · Textron 200, 200C, 200CT and 9 more. Effective Nov 17, 1989
- [AD 87-04-24](https://openairdocs.org/ad/87-04-24): Elevator Trim Cable System · Textron 1900, 1900C, 200 and 28 more. Effective Apr 14, 1987

### Matched by engine (Pratt & Whitney PT6A series)

- [AD 2024-04-51](https://openairdocs.org/ad/2024-04-51): Turbine Section · Pratt & Whitney Canada PT6A-64, PT6A-66, PT6A-66A and 17 more. Effective Mar 28, 2024
- [AD 2022-08-13](https://openairdocs.org/ad/2022-08-13): Turbine Section · Pratt & Whitney Canada PT6A-34, PT6A-34B, PT6A-34AG and 2 more. Effective May 27, 2022
- [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 2014-17-08 R1](https://openairdocs.org/ad/2014-17-08-R1): Compressor turbine (CT) blades · Pratt & Whitney Canada PT6A-114 and PT6A-114A. Effective Jun 5, 2015
- [AD 2014-11-05](https://openairdocs.org/ad/2014-11-05): Reinforcement liner to the power turbine (PT) containment   
  ring and, for certain PT containment rings, adding scallops · Pratt & Whitney Canada PT6A-11, PT6A-110, PT6A-112 and 18 more. Effective Aug 5, 2014
- [AD 2012-09-10](https://openairdocs.org/ad/2012-09-10): First stage sun gears · Pratt & Whitney Canada PT6A-110, PT6A-112, PT6A-114 and 12 more. Effective May 23, 2012
- [AD 2011-25-12](https://openairdocs.org/ad/2011-25-12): Sun gear · Pratt & Whitney Canada PT6A-15AG, PT6A-27, PT6A-28 and 4 more. Effective Dec 28, 2011
- [AD 2011-20-51](https://openairdocs.org/ad/2011-20-51): Gears · Pratt & Whitney Canada PT6A-15AG, PT6A-27, PT6A-28 and 4 more. Effective Nov 1, 2011
- [AD 2004-25-18](https://openairdocs.org/ad/2004-25-18): Propeller governor assemblies · Pratt & Whitney Canada PT6A-60A and PT6A-65B. Effective Jan 18, 2005
- [AD 2002-23-13](https://openairdocs.org/ad/2002-23-13): Turbine Exhaust Ducts · Pratt & Whitney Canada PT6A-11, PT6A-110, PT6A-112 and 20 more. Effective Dec 31, 2002
- [AD 2001-20-01](https://openairdocs.org/ad/2001-20-01): Compressor Bleed Valve Assembly · Pratt & Whitney Canada PT6A-114A and PT6A-25C. Effective Nov 5, 2001
- [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
- [AD 95-13-08](https://openairdocs.org/ad/95-13-08): Compressor Turbine Disk · Pratt & Whitney Canada PT6A-67D. Effective Jul 12, 1995
- [AD 93-23-06](https://openairdocs.org/ad/93-23-06): Airframe Chip Detector Flag System · Pratt & Whitney Canada PT6A-50. Effective Jan 26, 1994
- [AD 92-15-11](https://openairdocs.org/ad/92-15-11): Compressor Delivery Air Line (P3) Filter Assembly · Pratt & Whitney Canada PT6A-20, PT6A-20A, PT6A-21 and 7 more. Effective Aug 17, 1992
- [AD 90-12-05](https://openairdocs.org/ad/90-12-05): Engine Overhaul · Pratt & Whitney Canada PT6A-15AG, PT6A-27, PT6A-28 and 3 more. Effective May 30, 1990
- [AD 86-10-05](https://openairdocs.org/ad/86-10-05): First Stage Compressor Hub · Pratt & Whitney Canada PT6A-42. Effective Jun 5, 1986
- [AD 80-08-12](https://openairdocs.org/ad/80-08-12): Fuel Pump Drive Coupling Splines · Pratt & Whitney Canada PT6A-11, PT6A-112, PT6A-135 and 24 more. Effective Apr 18, 1980
- [AD 80-04-02](https://openairdocs.org/ad/80-04-02): Push-Pull Control Terminal · Pratt & Whitney Canada PT6A-20, PT6A-6A, PT6A-6B and 1 more. Effective Feb 8, 1980
- [AD 78-17-07](https://openairdocs.org/ad/78-17-07): Fuel Control Unit · Pratt & Whitney Canada PT6A-38, PT6A-41 and PT6A-45A. Effective Aug 31, 1978
- [AD 78-12-04](https://openairdocs.org/ad/78-12-04): No. 2 Bearing Pressure Oil Transfer Tube Assembly · Pratt & Whitney Canada PT6A-38, PT6A-41 and PT6A-45A. Effective Jun 19, 1978
- [AD 75-06-01](https://openairdocs.org/ad/75-06-01): Gearbox Deterioration · Pratt & Whitney Canada PT6A-20, PT6A-20A, PT6A-20B and 11 more. Effective Apr 1, 1977
- [AD 75-11-04](https://openairdocs.org/ad/75-11-04): Reduction Gearbox Engine Distress · Pratt & Whitney Canada PT6A-20, PT6A-20A, PT6A-20B and 8 more. Effective May 20, 1975
- [AD 70-16-01](https://openairdocs.org/ad/70-16-01): Turbo Propeller Governors · Pratt & Whitney Canada PT6A-11, PT6A-11AG, PT6A-15AG and 5 more. Effective Aug 4, 1970
- [AD 69-23-06](https://openairdocs.org/ad/69-23-06): Fuel Pumps · Pratt & Whitney Canada PT6A-20, PT6A-27, PT6A-28 and 4 more. Effective Nov 15, 1969
- [AD 68-05-03](https://openairdocs.org/ad/68-05-03): Reverse Mode · Pratt & Whitney Canada PT6A-20 and PT6A-6B. Effective Feb 28, 1968

### Historical (superseded or no longer in force)

- [AD 98-15-13](https://openairdocs.org/ad/98-15-13) (historical): Fuel Hose · Raytheon 100 Model or Series (all), 200 Model or Series (all), 200C and 32 more. Effective Aug 28, 1998
- [AD 96-17-10](https://openairdocs.org/ad/96-17-10) (historical): Outflow/Safety Valve · Raytheon 200 Model or Series (all), 2000, 300 and 5 more. Effective Sep 24, 1996
- [AD 93-25-07](https://openairdocs.org/ad/93-25-07) (historical): Fuselage Stringers · Raytheon 200 Model or Series (all), 200C, 200CT and 22 more. Effective Feb 15, 1994
- [AD 87-22-01 R1](https://openairdocs.org/ad/87-22-01-R1) (historical): Nose Landing Gear Fork · Raytheon 100 Model or Series (all), 1900, 1900C and 50 more. Effective Sep 30, 1989
- [AD 2014-17-08](https://openairdocs.org/ad/2014-17-08) (historical): Compressor turbine (CT) blades · Pratt & Whitney Canada PT6A-114 and PT6A-114A. Effective Oct 8, 2014
- [AD 88-24-02](https://openairdocs.org/ad/88-24-02) (historical): Airframe Chip Detector Flag System · Pratt & Whitney Canada PT6A-50

## Information bulletins (advisory) (13 in force)

- [SAIB CE-15-15](https://openairdocs.org/saib/CE-15-15): Empennage  Horizontal & Vertical Stabilizer Structure. Issued Apr 20, 2015
- [SAIB CE-12-36](https://openairdocs.org/saib/CE-12-36): Flight Controls: Aileron. Issued Jun 19, 2012
- [SAIB CE-06-27](https://openairdocs.org/saib/CE-06-27): . Issued Jan 30, 2006
- [SAIB CE-03-43R1](https://openairdocs.org/saib/CE-03-43R1): . Issued Sep 23, 2003
- [SAIB CE-02-19](https://openairdocs.org/saib/CE-02-19): . Issued Mar 11, 2002
- [SAIB CE-02-11R1](https://openairdocs.org/saib/CE-02-11R1): . Issued Feb 22, 2002
- [SAIB CE-00-16](https://openairdocs.org/saib/CE-00-16): . Issued Feb 4, 2000
- [SAIB ACE-96-15](https://openairdocs.org/saib/ACE-96-15): . Issued Dec 20, 1996
- [SAIB NE-15-21](https://openairdocs.org/saib/NE-15-21): Fuel Injector Nozzle. Issued Aug 19, 2015
- [SAIB NE-12-04](https://openairdocs.org/saib/NE-12-04): Turbine/ Turboprop Engine: Reduction Gearbox. Issued Nov 1, 2011
- [SAIB NE-10-47](https://openairdocs.org/saib/NE-10-47): Turbine Engine Compressor Section. Issued Aug 30, 2010
- [SAIB NE-06-34](https://openairdocs.org/saib/NE-06-34): . Issued Mar 21, 2006
- [SAIB CE-03-24](https://openairdocs.org/saib/CE-03-24): . Issued Feb 19, 2003
- [SAIB CE-03-43](https://openairdocs.org/saib/CE-03-43) (historical): . Issued Jun 27, 2003
- [SAIB CE-02-11](https://openairdocs.org/saib/CE-02-11) (historical): . Issued Jan 4, 2002

## NTSB investigations

None matched to N73.

## FAA accident and incident reports (1)

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 20150123000579I](https://openairdocs.org/incident/20150123000579I), Jan 23, 2015: Beech 300 (N73), Aurora, IL, Minor damage. While conducting a low approach for ILS 9 into Aurora municipal airport (karr), in Illinois, N73, a Beechcraft 300 aircraft, struck a bird. After impacting the…

## Service difficulty reports (27)

As reported by operators and repair stations. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

- [SDR RU3A2021031100005](https://openairdocs.org/sdr/RU3A2021031100005), Mar 11, 2021: CAP. LEAKING. FUEL VENT FROM RIGHT WING CAP AREA IN FLIGHT. REPLACEMENT OF FUEL CAP TO CORRECT.
- [SDR RU3A20200603025](https://openairdocs.org/sdr/RU3A20200603025), Jun 3, 2020: EVA TUBE. DAMAGED. LEFT BLEED AIR LIGHT ILLUMINATED ON AT 11000 CLIMBING OUT 4 MINUTES LATER PASSING 9000 DESCENDING. HOLE WAS FOUND IN EVA TUBING, TUBING WAS ROUTED ON TOP OF BLE
- [SDR RU3A20200601024](https://openairdocs.org/sdr/RU3A20200601024), May 29, 2020: EVA TUBE. DAMAGED. TEN MINUTES INTO THE FLIGHT AT 14000' THE LEFT ENGINE BLEED AIR FAIL LIGHT ILLUMINATED. FOUND A HOLE IN EVA TUBING. TUBING REPLACED.
- [SDR RU3A2020060127023](https://openairdocs.org/sdr/RU3A2020060127023), May 27, 2020: BLEED VALVE. FAILED. LEFT BLEED AIR FAIL LIGHT ILLUMINATED IN FLIGHT, 25 MIN INTO FLIGHT. MAINTENANCE REPLACED LEFT BLEED AIR VALVE.
- [SDR RU3A201912067071](https://openairdocs.org/sdr/RU3A201912067071), Nov 27, 2019: SWITCH. FAILED. L BL AIR FAIL LIGHT 1 HR INTO FLIGHT. LIGHT RESET WITH PNEU/ENV OFF. ILLUMINATED 30" LATER. RESET WITH PNEU/ENV OFF. NEVER ILLUMINATED AGAIN FOR .8 FLIGHT TIME.
- [SDR RU3A201911196064](https://openairdocs.org/sdr/RU3A201911196064), Nov 16, 2019: LANDING GEAR. MALFUNCTIONED. WITH LANDING GEAR CONTROL HANDLE IN UP POSITION GEAR REMAINS DOWN AND 3 GREEN GEAR DOWN LIGHTS REMAINED ILLUMINATED. ENGAGED DOWN LOCK REL TO RAISE GEAR.
- [SDR RU3A20190315009](https://openairdocs.org/sdr/RU3A20190315009), Mar 14, 2019: LIGHT. INOPERATIVE. LT MAIN GEAR LT DID NOT ILLUMINATE WITH GEAR HANDLE DOWN. UNSAFE LANDING GEAR CHECK LIST AND TROUBLESHOOTING BY MAINTENANCE REVEALED THE LT MAIN LANDING GEAR DO
- [SDR MV1R2019060130001](https://openairdocs.org/sdr/MV1R2019060130001), Nov 13, 2018: BEARING. FAILED. WHEEL BEARING FAILED. TIRE BLEW. REPLACED THE BEARING IAW MM 32-45-23.
- [SDR RU3A20170322005](https://openairdocs.org/sdr/RU3A20170322005), Mar 22, 2017: CONTROL CABLE. INTERFERENCE. LIGHT INTERFERENCE BETWEEN THE EMPENNAGE CONTROL CABLES AND THE LOWER PORTION OF FRAME PASS-THRU.
- [SDR RU3A20170206002](https://openairdocs.org/sdr/RU3A20170206002), Feb 6, 2017: DOWNLOCK SWITCH. STUCK. LANDING GEAR HANDLE DOWNLOCK DID NOT RELEASE ON TAKEOFF. RELEASED AFTER APPROXIMATELY 5 MINUTES OF LEVEL FLIGHT. CORRECTED BY REPLACEMENT OF SAFETY SWITCH ASSEM
- [SDR RU3A20150610012](https://openairdocs.org/sdr/RU3A20150610012), Jun 10, 2015: MONITOR. UNSERVICEABLE. MASTER WARNING LIGHT ILLUMINATED WITH AN ASSOCIATED, AUTOPILOT DISCONNECT, RED SEGMENT LIGHT. THERE WAS NO ACTUAL DISCONNECTING OF THE AUTOPILOT & THERE WAS NO 
- [SDR RU3A20140219008](https://openairdocs.org/sdr/RU3A20140219008), Feb 19, 2015: SELECTOR. MALFUNCTIONED. PILOT MODE SELECTOR PANEL & AUTO PILOT CONTROL PANEL STARTED FLASHING. PF FELT WHAT WAS BELIEVED TO BE AN UNCOMMANDED ENGAGING & DISENGAGING, BUMP OF THE YAW DA
- [SDR RU3A20140123004](https://openairdocs.org/sdr/RU3A20140123004), Jan 23, 2015: CONTROL CABLE. FRAYED. AILERON AUTOPILOT SERVO CABLE FRAYED FROM CONTACT WITH GUARD POST. REPOSITIONED CAPSTAN GUARD POSTS TO ALLOW FOR CLEAR MOVEMENT OF CABLE.
- [SDR RU3A20140422017](https://openairdocs.org/sdr/RU3A20140422017), Apr 24, 2014: FLUID. LOW. OIL PRESS FLUCTUATING BETWEEN 70 & 800 PSI ON THE NR 1 ENG. FOUND NO OIL ON DIPSTICK WHEN CHECKED. ENG WAS SERVICED TO BRING OIL QUANTITY UP. RAN ENG & FOUND AL
- [SDR RU3A20140220007](https://openairdocs.org/sdr/RU3A20140220007), Feb 20, 2014: HINGE. BROKEN. RIGHT WING LE HINGE SEGMENTS BROKEN. SEGMENTS HAD SEVERE CORROSION, UNABLE TO REMOVE HINGE PIN THEREFORE, RT OTBD FRONT SPAR IS BEING REPLACED.
- [SDR RU3A20120419001](https://openairdocs.org/sdr/RU3A20120419001), Apr 10, 2012: FILTER. CONTAMINATED. DURING PREFLIGHT, CREW NOTICED A STRONG SMELL OF WHAT THEY THOUGHT WAS A SANITIZER. APPROX 2 HOURS INTO THE FLT, THE SMELL BECAME IRRITATING, CAUSING THROAT AND
- [SDR RU3A1123](https://openairdocs.org/sdr/RU3A1123), Nov 6, 2011: PROCESSOR. FAILED. ABORT PRIOR TO V1 DUE TO TCAS PROCESSOR FAILURE.
- [SDR RU3A1122](https://openairdocs.org/sdr/RU3A1122), Oct 25, 2011: LIGHT. INOPERATIVE. LEFT MAIN UNSAFE GEAR INDICATION. SUSPECT BAD LIGHT BULB. MANUALLY LOWERED GEAR IAW ABNORMAL PROCEDURES CHECKLIST. DECLARED EMERGENCY. UNEVENTFUL LANDING. MAINT
- [SDR RU3A201109011118](https://openairdocs.org/sdr/RU3A201109011118), Sep 1, 2011: FLOW VALVE. FAILED. ON TAKEOFF AND INITIAL CLIMB OUT ALL CREWMEMBERS NOTICED ABNORMAL SMELL; MISSION SPECIALISTS (2) NOTED HAZE THROUGHOUT CABIN WHICH REDUCED VISIBILITY, NON-FLYIN
- [SDR RU3A1111](https://openairdocs.org/sdr/RU3A1111), Mar 9, 2011: COOLING DUCT. OUT OF POSITION. STRONG HEAT SMELL WHEN WINDSHIELD HEAT SELECTED ON. MAINTENANCE FOUND EFIS COOLING TUBE CHAFING ON CONTACT (A2) OF PILOTS WINDOW HEAT RELAY (LOW) K118. REPOSTIO
- [SDR RU3A1114](https://openairdocs.org/sdr/RU3A1114), Feb 7, 2011: SKIN. CRACKED. DURING C CHECK INSPECTION DISCOVERED LOWER SKIN CRACKED ON LEFT OUTBOARD WING FLAP.
- [SDR RU3A1013](https://openairdocs.org/sdr/RU3A1013), Apr 9, 2010: UNKNOWN. ODOR. ELECTRICAL BURNING SMELL IN AIRCRAFT INFLIGHT. INITIATED APPROPRIATE CHECKLIST. ATC NOTIFIED. PRECAUTIONARY LANDING MADE. ELECTRICAL SMELL DISSIPATED PRIOR TO L
- [SDR RU3A0615001](https://openairdocs.org/sdr/RU3A0615001), Oct 5, 2006: ACTUATOR. CRACKED. HYDRAULIC FLUID LOW LIGHT ILLUMINATED APPROX 10 MIN AFTER INITIAL TAKEOFF, WHILE LEVEL AT 4000 FT MSL. WHILE REVIEWING HYD FLUID LOW ANNUNCIATOR ILLUMINATED CHE
- [SDR RU3A0614](https://openairdocs.org/sdr/RU3A0614), Sep 20, 2006: VALVE. MALFUNCTIONED. UPON COMPLETION OF LOW APPROACH ATTEMPTED TO RAISE GEAR. 3 GREEN DOWN AND LOCKED LIGHTS EXTINGUISHED, GEAR HANDLE WOULD NOT RAISE, AND LANDING GEAR RELAY CB (2A
- [SDR 2004F00405](https://openairdocs.org/sdr/2004F00405), Sep 13, 2004: RECEIVER. ODOR. ON FINAL APPROACH KLN-88 RECEIVER FLICKERED AND THE SCREEN WENT BLANK. A STRONG ELECTRICAL ODOR PREVAILED THROUGH OUT THE CABIN. KLN-88 WAS TURNED OFF AND AIRCR
- [SDR RU3A03011](https://openairdocs.org/sdr/RU3A03011), Jun 16, 2003: SENSE LINE. DAMAGED. EN ROUTE AT FL200 RIGHT BLEED AIR FAIL ANNUNCIATOR LIGHT ILLUMINATED. EXECUTED EMERGENCY ROCEDUES AND LANDED AT NEAREST AIRPORT. FBO MAINTENANCE TROUBLESHOT SYS
- [SDR RU3A00002](https://openairdocs.org/sdr/RU3A00002), Jul 5, 2000: CARBON SEAL. DETERIORATED. CLIMBING THROUGH 17,000 FEET,SUDDEN ODOR AND SMOKE WERE OBSERVED IN CABIN/COCKPIT. IMMEDIATE DESCENT AND DIVERSION TO NEAREST SUITABLE AIRFIELD WAS BEGUN. SMOKE

## STCs that may be installed (OpenAirDocs) (373, 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 (Beech 300)

- [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 SA02658LA](https://openairdocs.org/stc/SA02658LA): Replacement of the original Pratt and Whitney PT6A-60A engines and propellers with Pratt and Whitney PT6A-67A engines and MT Propeller MTV-27-1-N-C-F-R(P)/CFR260-65b propellers. Blackhawk Modifications LLC
- [STC SA02279AT](https://openairdocs.org/stc/SA02279AT): Installation of a Boom Beam bulb, starter, and ballast. Whelen Aerospace Technologies
- [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 SA04221CH](https://openairdocs.org/stc/SA04221CH): Installation of Thermal Acoustic Kit. Skandia Inc
- [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 SA02133SE](https://openairdocs.org/stc/SA02133SE): Installation of a Luma Technologies LT-4500 Series Integrated Light\Emitting Diode (LED) Display Panel and LT-3500 LED light modules. Luma Technologies LLC
- [STC SA12345IB](https://openairdocs.org/stc/SA12345IB): Replacement of the Halon Type 1211 portable fire extinguisher with the Halotron BrX portable fire extinguisher. Cessna Duesseldorf Citation Service Center GmbH
- [STC SA03930NY](https://openairdocs.org/stc/SA03930NY): Installation of King Air Belly Payload Mount. Icarus Aero Inc
- [STC SA02017WI](https://openairdocs.org/stc/SA02017WI): The Installation of the Parker-Meggitt iPRESS™ System. 3S Certification LLC
- [STC ST04442CH](https://openairdocs.org/stc/ST04442CH): Installation of SmartSky LiTE System. Apcela IFC JV, LLC dba Apcela ATG
- [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 SA01535WI-D](https://openairdocs.org/stc/SA01535WI-D): Installation of the Garmin G1000 Integrated Avionics System and GFC 700 Automatic Flight Control System and optional Electronic Stability and Protection (ESP). Garmin International Inc
- [STC SA10941SC](https://openairdocs.org/stc/SA10941SC): Installation of a 3-Tube Rockwell Collins Pro Line 21 Avionics System with Rockwell Collins Integrated Flight Information System 5000, TCAS II, and Honeywell Enhanced Ground Proximity Warning System. BHE and Associates
- [STC SA11300DS](https://openairdocs.org/stc/SA11300DS): Upgrade previously installed Collins Aerospace Radar Altimeter. BHE & Associates Ltd
- [STC SA01868LA](https://openairdocs.org/stc/SA01868LA): Installation of a Wescam FLIR unit into an extended fuselage nose (STC SA00367SE). Metrea Special Aerospace ISR Inc
- [STC SA2794NM](https://openairdocs.org/stc/SA2794NM): Installation of Flight Equipment and Engineer Corp. passenger seats. Metrea Special Aerospace ISR Inc
- [STC SA4490NM](https://openairdocs.org/stc/SA4490NM): Installation of baggage compartment door. Metrea Special Aerospace ISR Inc
- [STC SA02738CH](https://openairdocs.org/stc/SA02738CH): Installation of L-3 Communications Avionics Systems. Acron Aviation Inc
- [STC SA156CH](https://openairdocs.org/stc/SA156CH): Installation of a TCAS I. Acron Aviation Inc
- [STC SA9210SC-D](https://openairdocs.org/stc/SA9210SC-D): Installation of the L-3 Communications Avionics Systems Infrared Imaging System (IRIS). Acron Aviation Inc
- [STC SA09887AC](https://openairdocs.org/stc/SA09887AC): Installation of an Avionica MK-III mini Quick Access Recorder (QAR) and optional 4G or LTE Avionica Cellular Module (avCM. Aircraft Systems and Manufacturing Inc
- [STC SA11914IB](https://openairdocs.org/stc/SA11914IB): Installation of the MT-Propeller Entwicklung GmbH MTV-47-1-()-C-F-R(P)/CFR260-361(). MT-Propeller Entwicklung GmbH
- [STC SA11855IB](https://openairdocs.org/stc/SA11855IB): Installation of the Flap Roller Bearing Assembly. Marsh Brothers Aviation Inc
- [STC SA01848WI](https://openairdocs.org/stc/SA01848WI): Modification of a Rockwell Collins Global Positioning System (GPS). Rockwell Collins 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 SA00322BO](https://openairdocs.org/stc/SA00322BO): Installation of a Supplemental Exterior Lighting System. ATI Engineering Services LLC
- [STC SA00335BO](https://openairdocs.org/stc/SA00335BO): Installation of a Night Vision Goggle (NVG) compatible Lighting System. ATI Engineering Services LLC
- [STC SA00363BO](https://openairdocs.org/stc/SA00363BO): Installation of LED Position Lights. ATI Engineering Services LLC
- [STC SA02033WI](https://openairdocs.org/stc/SA02033WI): Installation of the SmartSky LITE System. Aeronautix
- [STC SA04051CH](https://openairdocs.org/stc/SA04051CH): Certification of Automatic Dependent Surveillance - Broadcast (ADS-B) Out System with Rockwell Collins TDR-94/-94D Transponders. CMD Flight Solutions LLC
- [STC SA01615SE](https://openairdocs.org/stc/SA01615SE): Installation of winglets and related system changes. BLR Aerospace LLC
- [STC SA01050WI](https://openairdocs.org/stc/SA01050WI): Installation of Emergency Vision Assurance System (EVAS). VisionSafe LLC
- [STC ST02752SE](https://openairdocs.org/stc/ST02752SE): Installation of the Starlink Aviation System. AeroMech Incorporated
- [STC SA03316CH](https://openairdocs.org/stc/SA03316CH): Activation of an 802.11 a/b/g/n WiFi System. Elliott Aviation Technical Products Development Inc
- [STC SA02658SE](https://openairdocs.org/stc/SA02658SE): Installation of Garmin GI 275 Multi-Function Display System. Garmin International Inc
- [STC SA00975CH](https://openairdocs.org/stc/SA00975CH): Installation of Butterfield Industries Oil Residue Collection System, kit Part Number BI 4020-1. Raisbeck Engineering
- [STC SA00976CH](https://openairdocs.org/stc/SA00976CH): Installation of Butterfield Industries Air/Oil Separator System, kit Part Number BI 6001-3. Raisbeck Engineering Inc
- [STC SA01111SE](https://openairdocs.org/stc/SA01111SE): Installation of engine plenum seal.`. Raisbeck Engineering
- [STC SA02215SE](https://openairdocs.org/stc/SA02215SE): Fabrication of Inspection Panel Kit BI 9501-001. Raisbeck Engineering Inc
- [STC SA02473SE](https://openairdocs.org/stc/SA02473SE): Installation of Raisbeck/Hartzell Swept Blade Turbofan Propellers. Raisbeck Engineering Inc
- [STC SA02559SE](https://openairdocs.org/stc/SA02559SE): Installation of Raisbeck/Hartzell Five-Blade Swept Turbofan Propellers. Raisbeck Engineering Inc
- [STC SA3683NM](https://openairdocs.org/stc/SA3683NM): Installation of exhaust stack fairings. Raisbeck Engineering Inc
- [STC SA4733NM](https://openairdocs.org/stc/SA4733NM): Installation of lower aft fuselage strakes. Raisbeck Engineering Inc
- [STC SA4734NM](https://openairdocs.org/stc/SA4734NM): Installation of nacelle overwing storage lockers and lower flap fairing. Raisbeck Engineering Inc
- [STC SA04601CH](https://openairdocs.org/stc/SA04601CH): Installation of a McCauley Propeller Systems 4HFR34C780/1OSSTA-0 to -2 model propeller. MCCAULEY PROPELLER SYSTEMS
- [STC SA02593AT](https://openairdocs.org/stc/SA02593AT): Installation of a Collins FDS-2000 Flight Display System. Summit Aviation Inc
- [STC SA02570AT-D](https://openairdocs.org/stc/SA02570AT-D): Installation of a TCAS 4000 Traffic Alert and Collision Avoidance System. Summit Aviation Inc

All 373: https://openairdocs.org/aircraft/N73/stcs.md

## Earlier aircraft with N73

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N73 before.

- [Cancelled 1965-04-09](https://openairdocs.org/deregistered/N73-1965-04-09): Douglas DC3, S/N 33206. Exported to Greece. Owner: [Department Of The Navy Of The National Defense](https://openairdocs.org/faa-owner/DEPARTMENT%20OF%20THE%20NAVY%20OF%20THE%20NATIONAL%20DEFENSE), [Washington, DC](https://openairdocs.org/faa-place/DC/Washington)
- [Cancelled 1947-01-28](https://openairdocs.org/deregistered/N73-1947-01-28): Beech 18S, S/N 364. Owner: [United States Government](https://openairdocs.org/faa-owner/UNITED%20STATES%20GOVERNMENT), [Washington, DC](https://openairdocs.org/faa-place/DC/Washington)
- [Cancelled 1946-02-26](https://openairdocs.org/deregistered/N73-1946-02-26): Interstate S-1B1, S/N 96. Owner: [Civil Aeronautics Adinistration](https://openairdocs.org/faa-owner/CIVIL%20AERONAUTICS%20ADINISTRATION), [Washington, DC](https://openairdocs.org/faa-place/DC/Washington)
- [Cancelled 1938-03-01](https://openairdocs.org/deregistered/N73-1938-03-01): Hammond Y-1 M125A, S/N 302. Owner: [Bureau Of Air Commerce](https://openairdocs.org/faa-owner/BUREAU%20OF%20AIR%20COMMERCE), [Washington, DC](https://openairdocs.org/faa-place/DC/Washington)

## Related

- Other Beech 300 aircraft: https://openairdocs.org/model/beech-300/aircraft.md
- The Pratt & Whitney PT6A series engine: https://openairdocs.org/engine/pratt-whitney-pt6a-series.md

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