# Ryan Aeronautical ST3KR

- Type: Aircraft model (FAA registry)
- Registry code: 7830502
- Manufacturer (registry): RYAN AERONAUTICAL
- Model: ST3KR
- Aircraft type: Fixed wing single engine
- Category: Airplane
- Engines: 1 · Reciprocating
- Seats: 2
- Weight class: Up to 12,499 lb
- Cruise speed: 105 mph
- Certification: Type certificated
- Data sheet: [TCDS A-749](https://openairdocs.org/tcds/A-749) (OpenAirDocs)
- Holder: Ryan Aeronautical Company
- Registered aircraft: 117
- Page: https://openairdocs.org/model/ryan-aeronautical-st3kr

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 51-28-03](https://openairdocs.org/ad/51-28-03): Fuel Valve Placard · Ryan Aeronautical ST-3KR
- [AD 46-06-01](https://openairdocs.org/ad/46-06-01): Front Fin Spar · Ryan Aeronautical ST-3KR

## Registered aircraft (117, first 50)

- [N11X](https://openairdocs.org/aircraft/N11X): [Sink Lendon V](https://openairdocs.org/faa-owner/SINK%20LENDON%20V), [Lexington, NC](https://openairdocs.org/faa-place/NC/Lexington), built 1941, S/N 1418
- [N15550](https://openairdocs.org/aircraft/N15550): [Ruble Ronald](https://openairdocs.org/faa-owner/RUBLE%20RONALD), [Port Saint Lucie, FL](https://openairdocs.org/faa-place/FL/Port%20Saint%20Lucie), S/N 1579
- [N1616](https://openairdocs.org/aircraft/N1616): [Spitfire Ventures LLC](https://openairdocs.org/faa-owner/SPITFIRE%20VENTURES%20LLC), [San Antonio, TX](https://openairdocs.org/faa-place/TX/San%20Antonio), S/N 1062
- [N170P](https://openairdocs.org/aircraft/N170P): [Pt-22 Inc](https://openairdocs.org/faa-owner/PT-22%20INC), [Topeka, KS](https://openairdocs.org/faa-place/KS/Topeka), S/N 1566
- [N1799](https://openairdocs.org/aircraft/N1799): [Qualitair LLC Trustee](https://openairdocs.org/faa-owner/QUALITAIR%20LLC%20TRUSTEE), Michelstadt, built 1942, S/N 1799
- [N18926](https://openairdocs.org/aircraft/N18926): [International Air Services Inc Trustee](https://openairdocs.org/faa-owner/INTERNATIONAL%20AIR%20SERVICES%20INC%20TRUSTEE), [Carson City, NV](https://openairdocs.org/faa-place/NV/Carson%20City), built 1941, S/N 1001
- [N2022](https://openairdocs.org/aircraft/N2022): [Naca 130 LLC](https://openairdocs.org/faa-owner/NACA%20130%20LLC), [Cameron Park, CA](https://openairdocs.org/faa-place/CA/Cameron%20Park), built 1941, S/N 1054
- [N22AL](https://openairdocs.org/aircraft/N22AL): [Amercian Airpower Heritage Fly Musm](https://openairdocs.org/faa-owner/AMERCIAN%20AIRPOWER%20HERITAGE%20FLY%20MUSM), [Dallas, TX](https://openairdocs.org/faa-place/TX/Dallas), built 1942, S/N 1831
- [N22JK](https://openairdocs.org/aircraft/N22JK): [Roussopoulos Gary L](https://openairdocs.org/faa-owner/ROUSSOPOULOS%20GARY%20L), [Santa Cruz, CA](https://openairdocs.org/faa-place/CA/Santa%20Cruz), built 1942, S/N 1697
- [N239](https://openairdocs.org/aircraft/N239): [Gertsen Ronald Hans](https://openairdocs.org/faa-owner/GERTSEN%20RONALD%20HANS), [Glenwood, NJ](https://openairdocs.org/faa-place/NJ/Glenwood), built 1943, S/N 1325
- [N28832](https://openairdocs.org/aircraft/N28832): [Kresmery Marc G](https://openairdocs.org/faa-owner/KRESMERY%20MARC%20G), [Elgin, IL](https://openairdocs.org/faa-place/IL/Elgin), built 1941, S/N 1007
- [N2ER](https://openairdocs.org/aircraft/N2ER): [East Hampton Air LLC](https://openairdocs.org/faa-owner/EAST%20HAMPTON%20AIR%20LLC), [Wainscott, NY](https://openairdocs.org/faa-place/NY/Wainscott), built 1941, S/N 1645
- [N319JZ](https://openairdocs.org/aircraft/N319JZ): [Acv Group LLC](https://openairdocs.org/faa-owner/ACV%20GROUP%20LLC), [Mckinleyville, CA](https://openairdocs.org/faa-place/CA/Mckinleyville), built 1942, S/N 1823
- [N33GP](https://openairdocs.org/aircraft/N33GP): [Sky West Aviation Inc Trustee](https://openairdocs.org/faa-owner/SKY%20WEST%20AVIATION%20INC%20TRUSTEE), [Albuquerque, NM](https://openairdocs.org/faa-place/NM/Albuquerque), built 1942, S/N 2078
- [N343F](https://openairdocs.org/aircraft/N343F): [Willis William P Trustee](https://openairdocs.org/faa-owner/WILLIS%20WILLIAM%20P%20TRUSTEE), [New Palestine, IN](https://openairdocs.org/faa-place/IN/New%20Palestine), S/N 1580
- [N38964](https://openairdocs.org/aircraft/N38964): [Enk William A](https://openairdocs.org/faa-owner/ENK%20WILLIAM%20A), [Blue Springs, MO](https://openairdocs.org/faa-place/MO/Blue%20Springs), built 1941, S/N 1479
- [N440RR](https://openairdocs.org/aircraft/N440RR): [August Aero LLC](https://openairdocs.org/faa-owner/AUGUST%20AERO%20LLC), [Kalispell, MT](https://openairdocs.org/faa-place/MT/Kalispell), built 1945, S/N 2058
- [N46217](https://openairdocs.org/aircraft/N46217): [Cavanaugh Air LLC](https://openairdocs.org/faa-owner/CAVANAUGH%20AIR%20LLC), [Addison, TX](https://openairdocs.org/faa-place/TX/Addison), built 1941, S/N 1363
- [N46234](https://openairdocs.org/aircraft/N46234): [Kendrick Bret A](https://openairdocs.org/faa-owner/KENDRICK%20BRET%20A), [Johnson, KS](https://openairdocs.org/faa-place/KS/Johnson), built 1941, S/N 1074
- [N46502](https://openairdocs.org/aircraft/N46502): [Simply Living LLC](https://openairdocs.org/faa-owner/SIMPLY%20LIVING%20LLC), [Fort Myers, FL](https://openairdocs.org/faa-place/FL/Fort%20Myers), built 1943, S/N 1995
- [N46503](https://openairdocs.org/aircraft/N46503): [Ralphs](https://openairdocs.org/faa-owner/RALPHS), [Bakersfield, CA](https://openairdocs.org/faa-place/CA/Bakersfield), S/N 1290
- [N46751](https://openairdocs.org/aircraft/N46751): [Aerospace Museum Of California Foundation](https://openairdocs.org/faa-owner/AEROSPACE%20MUSEUM%20OF%20CALIFORNIA%20FOUNDATION), [Mcclellan, CA](https://openairdocs.org/faa-place/CA/Mcclellan), built 1942, S/N 2176
- [N46795](https://openairdocs.org/aircraft/N46795): [San Diego Air & Space Museum](https://openairdocs.org/faa-owner/SAN%20DIEGO%20AIR%20%26%20SPACE%20MUSEUM), [San Diego, CA](https://openairdocs.org/faa-place/CA/San%20Diego), S/N 1721
- [N46805](https://openairdocs.org/aircraft/N46805): [Farrell Richard Kenneth](https://openairdocs.org/faa-owner/FARRELL%20RICHARD%20KENNETH), [Robbinsville, NJ](https://openairdocs.org/faa-place/NJ/Robbinsville), built 1942, S/N 2015
- [N47012](https://openairdocs.org/aircraft/N47012): [Williams Robert W](https://openairdocs.org/faa-owner/WILLIAMS%20ROBERT%20W), [Lees Summit, MO](https://openairdocs.org/faa-place/MO/Lees%20Summit), S/N 1685
- [N47080](https://openairdocs.org/aircraft/N47080): [Jackson Gary W Trustee](https://openairdocs.org/faa-owner/JACKSON%20GARY%20W%20TRUSTEE), [Simi Valley, CA](https://openairdocs.org/faa-place/CA/Simi%20Valley), built 1942, S/N 1391
- [N47082](https://openairdocs.org/aircraft/N47082): [Stevens Mark S](https://openairdocs.org/faa-owner/STEVENS%20MARK%20S), [Kennebunk, ME](https://openairdocs.org/faa-place/ME/Kennebunk), built 1941, S/N 1443
- [N47094](https://openairdocs.org/aircraft/N47094): [Mock Michael](https://openairdocs.org/faa-owner/MOCK%20MICHAEL), [Brooksville, FL](https://openairdocs.org/faa-place/FL/Brooksville), built 1941, S/N 1629
- [N47306](https://openairdocs.org/aircraft/N47306): [Mojo Aerospace LLC](https://openairdocs.org/faa-owner/MOJO%20AEROSPACE%20LLC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 1949, S/N 1358
- [N47541](https://openairdocs.org/aircraft/N47541): [Phillips Robert L](https://openairdocs.org/faa-owner/PHILLIPS%20ROBERT%20L), [Wilkesboro, NC](https://openairdocs.org/faa-place/NC/Wilkesboro), S/N 1429
- [N47556](https://openairdocs.org/aircraft/N47556): [Aero Legacy Foundation](https://openairdocs.org/faa-owner/AERO%20LEGACY%20FOUNDATION), [Basehor, KS](https://openairdocs.org/faa-place/KS/Basehor), built 1941, S/N 1955
- [N47619](https://openairdocs.org/aircraft/N47619): [Ireland Kel R](https://openairdocs.org/faa-owner/IRELAND%20KEL%20R), [Fredericksburg, TX](https://openairdocs.org/faa-place/TX/Fredericksburg), S/N 1935
- [N47708](https://openairdocs.org/aircraft/N47708): [Ryan Recruit LLC](https://openairdocs.org/faa-owner/RYAN%20RECRUIT%20LLC), [Amarillo, TX](https://openairdocs.org/faa-place/TX/Amarillo), built 1942, S/N 1731
- [N47840](https://openairdocs.org/aircraft/N47840): [Harrist Robert](https://openairdocs.org/faa-owner/HARRIST%20ROBERT), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 1941, S/N 1157
- [N48016](https://openairdocs.org/aircraft/N48016): [Kropelin Barry R](https://openairdocs.org/faa-owner/KROPELIN%20BARRY%20R), [Monroe, NC](https://openairdocs.org/faa-place/NC/Monroe), S/N 1492
- [N48235](https://openairdocs.org/aircraft/N48235): [Tataryn Roderick W](https://openairdocs.org/faa-owner/TATARYN%20RODERICK%20W), [Valleyford, WA](https://openairdocs.org/faa-place/WA/Valleyford), built 1942, S/N 1903
- [N48307](https://openairdocs.org/aircraft/N48307): [Alexander Robert W](https://openairdocs.org/faa-owner/ALEXANDER%20ROBERT%20W), [Middleton, ID](https://openairdocs.org/faa-place/ID/Middleton), built 1941, S/N 1269
- [N48309](https://openairdocs.org/aircraft/N48309): [Gottenberg William L](https://openairdocs.org/faa-owner/GOTTENBERG%20WILLIAM%20L), [Rocklin, CA](https://openairdocs.org/faa-place/CA/Rocklin), built 1941, S/N 1578
- [N48587](https://openairdocs.org/aircraft/N48587): [Stix Albert I](https://openairdocs.org/faa-owner/STIX%20ALBERT%20I), [St Louis, MO](https://openairdocs.org/faa-place/MO/St%20Louis), built 1942, S/N 2073
- [N48588](https://openairdocs.org/aircraft/N48588): [I-4 Ventures LLC](https://openairdocs.org/faa-owner/I-4%20VENTURES%20LLC), [Thonotosassa, FL](https://openairdocs.org/faa-place/FL/Thonotosassa), built 1942, S/N 2116
- [N48606](https://openairdocs.org/aircraft/N48606): [Burnham Kenneth J](https://openairdocs.org/faa-owner/BURNHAM%20KENNETH%20J), [Carr, CO](https://openairdocs.org/faa-place/CO/Carr), built 1941, S/N 1454
- [N48608](https://openairdocs.org/aircraft/N48608): [Bald Eagle Aviation LLC](https://openairdocs.org/faa-owner/BALD%20EAGLE%20AVIATION%20LLC), [West Chester, PA](https://openairdocs.org/faa-place/PA/West%20Chester), built 1942, S/N 1905
- [N48701](https://openairdocs.org/aircraft/N48701): [Magnuson Lloyd W](https://openairdocs.org/faa-owner/MAGNUSON%20LLOYD%20W), [Opelousas, LA](https://openairdocs.org/faa-place/LA/Opelousas), built 1942, S/N 2101
- [N48742](https://openairdocs.org/aircraft/N48742): [American Airpower Heritage Flying Museum](https://openairdocs.org/faa-owner/AMERICAN%20AIRPOWER%20HERITAGE%20FLYING%20MUSEUM), [Dallas, TX](https://openairdocs.org/faa-place/TX/Dallas), built 1941, S/N 1298
- [N48747](https://openairdocs.org/aircraft/N48747): [Planes Of Fame Air Museum](https://openairdocs.org/faa-owner/PLANES%20OF%20FAME%20AIR%20MUSEUM), [Chino, CA](https://openairdocs.org/faa-place/CA/Chino), built 1941, S/N 1180
- [N48748](https://openairdocs.org/aircraft/N48748): [Roth Robert H](https://openairdocs.org/faa-owner/ROTH%20ROBERT%20H), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), S/N 1683
- [N48752](https://openairdocs.org/aircraft/N48752): [Durkee Michael S](https://openairdocs.org/faa-owner/DURKEE%20MICHAEL%20S), [Amelia, OH](https://openairdocs.org/faa-place/OH/Amelia), built 1941, S/N 1427
- [N48771](https://openairdocs.org/aircraft/N48771): [Nbi LLC](https://openairdocs.org/faa-owner/NBI%20LLC), [Boulder, CO](https://openairdocs.org/faa-place/CO/Boulder), built 1942, S/N 1923
- [N48772](https://openairdocs.org/aircraft/N48772): [Acv Group LLC](https://openairdocs.org/faa-owner/ACV%20GROUP%20LLC), [Mckinleyville, CA](https://openairdocs.org/faa-place/CA/Mckinleyville), S/N 2089
- [N48773](https://openairdocs.org/aircraft/N48773): [Justice Rick S](https://openairdocs.org/faa-owner/JUSTICE%20RICK%20S), [Meridian, MS](https://openairdocs.org/faa-place/MS/Meridian), S/N 1868

All 117: https://openairdocs.org/model/ryan-aeronautical-st3kr/aircraft.md

## NTSB investigations (119, newest 50)

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 WPR20CA271](https://openairdocs.org/ntsb/WPR20CA271), Aug 16, 2020: Ryan ST3KR (N62130), Port Townsend, WA, substantial damage. Probable cause: The pilot's failure to maintain directional control during landing, which resulted in a runway excursion and impact with vegetation.
- [NTSB CEN20WA441](https://openairdocs.org/ntsb/CEN20WA441), Feb 23, 2020: Ryan Aeronautical ST3KR (N53018), Les Chariots, France, destroyed, 2 fatal
- [NTSB WPR15LA233](https://openairdocs.org/ntsb/WPR15LA233), Aug 6, 2015: Ryan Aeronautical ST3KR (N48701), Hollister, CA, substantial damage, 1 fatal. Probable cause: The pilot's failure to observe the runway environment while operating in the traffic pattern and his subsequent failure to maintain clearance from a lawnmower on the runway during the landing roll.…
- [NTSB WPR15FA121](https://openairdocs.org/ntsb/WPR15FA121), Mar 5, 2015: Ryan Aeronautical ST3KR (N53178), Santa Monica, CA, substantial damage. Probable cause: A total loss of engine power during initial climb when the carburetor main metering jet became unseated, which led to an extremely rich fuel-to-air ratio. Contributing to the accident was the lack of…
- [NTSB ERA14LA360](https://openairdocs.org/ntsb/ERA14LA360), Jul 26, 2014: Ryan Aeronautical ST3KR (N59418), Newnan, GA, substantial damage. Probable cause: A total loss of engine power for reasons that could not be determined based on the available information.
- [NTSB CEN12LA369](https://openairdocs.org/ntsb/CEN12LA369), Jun 8, 2012: Ryan Aeronautical ST3KR (N721R), Norwalk, OH, substantial damage. Probable cause: The pilot’s failure to maintain directional control of the airplane while landing in a crosswind.
- [NTSB ERA11LA417](https://openairdocs.org/ntsb/ERA11LA417), Jul 24, 2011: Ryan Aeronautical ST3KR (N2ER), Sagaponack, NY, substantial damage. Probable cause: The loss of engine power for undetermined reasons.
- [NTSB WPR11LA096](https://openairdocs.org/ntsb/WPR11LA096), Jan 11, 2011: Ryan Aeronautical ST3KR (N57027), Warner Springs, CA, substantial damage, 1 fatal. Probable cause: The pilot's failure to maintain clearance from the wind sock pole during landing.
- [NTSB NYC08LA015](https://openairdocs.org/ntsb/NYC08LA015), Oct 20, 2007: Ryan ST-3KR (N780SR), Unadilla, GA, substantial damage. Probable cause: The improper propeller installation by the mechanic.
- [NTSB MIA07CA033](https://openairdocs.org/ntsb/MIA07CA033), Jan 6, 2007: Ryan Aeronautical ST3KR (N56434), Lake Butler, FL, substantial damage. Probable cause: a partial loss of engine power due to a disconnected throttle control push-rod, which resulted in a forced landing and collision with trees and the ground.
- [NTSB LAX06LA036](https://openairdocs.org/ntsb/LAX06LA036), Nov 15, 2005: Ryan Aeronautical ST3KR (N56038), Lincoln, CA, substantial damage. Probable cause: The pilot's failure to maintain airspeed, which resulted in an inadvertent stall while maneuvering.
- [NTSB NYC04LA214](https://openairdocs.org/ntsb/NYC04LA214), Sep 19, 2004: Ryan ST3KR (N57015), Bealeton, VA, substantial damage. Probable cause: The improper installation of fuel lines by maintenance personnel resulting in a total loss of engine power.
- [NTSB LAX01LA288](https://openairdocs.org/ntsb/LAX01LA288), Aug 25, 2001: Ryan ST3KR (N48742), Camarillo, CA, substantial damage. Probable cause: The improper fabrication/reassembly and inspection of the engine throttle control linkage during aircraft restoration by the operator, and the failure of the operator's inspection personnel to detect…
- [NTSB LAX01LA159](https://openairdocs.org/ntsb/LAX01LA159), Apr 22, 2001: Ryan ST3KR (N46503), Murrieta, CA, substantial damage. Probable cause: The failure of the pilot to maintain an adequate visual lookout during taxi to avoid striking a post. A factor in the accident was the inadequate marking of the obstruction by airport personnel.
- [NTSB LAX01LA020](https://openairdocs.org/ntsb/LAX01LA020), Oct 21, 2000: Ryan ST3KR (N50870), Georgetown, CA, destroyed, 1 fatal. Probable cause: The airplane's encounter with a strong updraft at the end of the runway that induced an increase in the wing's angle of attack to the critical point, which resulted in an inadvertent stall and spin.
- [NTSB MIA00LA242](https://openairdocs.org/ntsb/MIA00LA242), Aug 19, 2000: Ryan ST3KR (N54403), St. Lucie, FL, substantial damage. Probable cause: The pilot's improper judgment to conduct a precautionary landing when he first experienced a partial loss of engine power, and his subsequent failure to maintain a visual lookout during a forced…
- [NTSB MIA99LA195](https://openairdocs.org/ntsb/MIA99LA195), Jul 10, 1999: Ryan ST3KR (N47306), Lake City, FL, substantial damage. Probable cause: the improper maintenance and inspection of the propeller system, which resulted in loose and improperly torqued bolts, causing the subsequent failure of a propeller blade.
- [NTSB MIA99LA008](https://openairdocs.org/ntsb/MIA99LA008), Oct 14, 1998: Ryan ST3KR (N59514), Rossville, TN, substantial damage, 1 fatal. Probable cause: The failure of the pilot to maintain airspeed (VSO) while maneuvering in a recovery from a spin.
- [NTSB LAX98LA288](https://openairdocs.org/ntsb/LAX98LA288), Sep 10, 1998: Ryan ST3KR (N22JK), Los Banos, CA, substantial damage. Probable cause: The pilot's decision to takeoff in adverse wind conditions and inadequate compensation for the existing crosswind conditions, which resulted in a failure to maintain runway alignment.
- [NTSB LAX98LA100](https://openairdocs.org/ntsb/LAX98LA100), Mar 1, 1998: Ryan PT22-ST3KR (N57085), Davis, CA, substantial damage. Probable cause: The failure of the pilot to maintain directional control of the aircraft on the landing roll.
- [NTSB LAX96LA312](https://openairdocs.org/ntsb/LAX96LA312), Aug 19, 1996: Ryan ST3KR (N57011), Vacaville, CA, substantial damage. Probable cause: The pilot's failure to maintain directional control of the aircraft during the landing rollout.
- [NTSB LAX96LA262](https://openairdocs.org/ntsb/LAX96LA262), Jul 5, 1996: Ryan ST3KR (N57017), Santa Paula, CA, destroyed, 2 fatal. Probable cause: a partial loss of engine power for undetermined reasons and the pilot's failure to maintain control of the airplane while maneuvering toward the runway following the power loss.
- [NTSB NYC95LA173](https://openairdocs.org/ntsb/NYC95LA173), Jul 21, 1995: Ryan ST3-KR (N47082), Kennett Square, PA, substantial damage. Probable cause: The failure of the no. 3 cylinder connecting rod.
- [NTSB LAX95LA169](https://openairdocs.org/ntsb/LAX95LA169), Apr 22, 1995: Ryan ST-3-KR (N214D), Apple Valley, CA, destroyed, 1 fatal. Probable cause: the failure of the pilot to maintain airspeed, and entering into an inadvertent stall while flying close to the ground.
- [NTSB FTW95LA142](https://openairdocs.org/ntsb/FTW95LA142), Mar 20, 1995: Ryan Aeronautical ST3-KR (N54430), Blue Ridge, TX, substantial damage. Probable cause: THE LOSS OF ENGINE POWER FOR UNDETERMINED REASON. A FACTOR WAS THE LACK OF SUITABLE TERRAIN FOR THE FORCED LANDING.
- [NTSB SEA92LA095](https://openairdocs.org/ntsb/SEA92LA095), May 11, 1992: Ryan ST-3KR (N4223P), Anacortes, WA, destroyed. Probable cause: LOSS OF ENGINE POWER DUE TO FATIGUE FAILURE OF THE CRANKSHAFT COUNTERWEIGHT CAP SCREWS AND SEPARATION OF THE COUNTERWEIGHT. A FACTOR RELATING TO THE ACCIDENT WAS THE RESIDENTIAL AREA AND LACK OF…
- [NTSB LAX91LA274](https://openairdocs.org/ntsb/LAX91LA274), Jun 16, 1991: Ryan ST3KR (N46795), Santa Maria, CA, substantial damage. Probable cause: OIL STARVATION DUE TO THE PILOT'S FAILURE TO PROPERLY CONFIGURE THE AIRCRAFT FOR THE FLIGHT DURING THE PREFLIGHT INSPECTION.
- [NTSB BFO90LA078](https://openairdocs.org/ntsb/BFO90LA078), Sep 23, 1990: Ryan ST3KR (N57015), Bealeton, VA, destroyed. Probable cause: THE PILOT'S FAILURE TO MAINTAIN A VIGILENT WATCH FOR OTHER AIRCRAFT OPERATING ON THE UNCONTROLLED AIRPORT. THE UNEVEN TERRAIN ON THE AIRPORT RESTRICTED VISIBILITY AND CONTRIBUTED TO THE ACCIDENT.…
- [NTSB CHI90LA249](https://openairdocs.org/ntsb/CHI90LA249), Aug 29, 1990: Ryan PT-22A (N5481L), Greenville, MI, substantial damage. Probable cause: SEPARATION OF A LOOSE CYLINDER ASSEMBLY IN FLIGHT, AND UNSUITABLE TERRAIN ENCOUNTERED DURING THE EXECUTION OF A FORCED LANDING.
- [NTSB FTW90LA121](https://openairdocs.org/ntsb/FTW90LA121), Jun 20, 1990: Ryan ST-3KR (N48743), Fabens, TX, substantial damage. Probable cause: INADEQUATE VISUAL LOOKOUT BY THE PILOTS OF BOTH AIRCRAFT, WHICH RESULTED IN A FAILURE OF EACH PILOT TO SEE-AND-AVOID THE OTHER AIRCRAFT. A FACTOR RELATED TO THE ACCIDENT WAS: FAILURE OF THE RYAN…
- [NTSB LAX89LA288](https://openairdocs.org/ntsb/LAX89LA288), Aug 26, 1989: Ryan ST3KR (N59466), Hawthorne, CA, substantial damage. Probable cause: OIL STARVATION OF THE ENGINE DUE TO THE PILOT'S FAILURE TO TURN THE OIL TANK SUPPLY VALVE ON PRIOR TO FLIGHT.
- [NTSB NYC89LA196](https://openairdocs.org/ntsb/NYC89LA196), Aug 20, 1989: Ryan ST-3KR (N239), Factoryville, PA, substantial damage. Probable cause: INADEQUATE PREFLIGHT BY THE PILOT AND HIS MISJUDGEMENT OF THE FUEL SUPPLY, WHICH RESULTED IN FUEL EXHAUSTION. THE DITCH WAS A RELATED FACTOR.
- [NTSB CHI89FA154](https://openairdocs.org/ntsb/CHI89FA154), Jul 31, 1989: Ryan PT-22 (N54403), Oshkosh, WI, substantial damage. Probable cause: THE EXPERIMENTAL AIRCRAFT ASSOCIATION'S (EAA'S) INADEQUATE PROCEDURE FOR PROVIDING CONTROL AND SEPARATION OF AIRCRAFT, ITS INADEQUATE SURVEILLANCE OF THE OPERATION, AND INADEQUATE COORDINATION BY…
- [NTSB DEN89LA134](https://openairdocs.org/ntsb/DEN89LA134), Jun 6, 1989: Ryan ST-3KR (N48749), La Salle, CO, substantial damage. Probable cause: FOREIGN MATERIAL (INSECT NEST) BLOCKING THE FUEL SYSTEM VENT, WHICH RESULTED IN A RESTRICTION OF FUEL FLOW AND FUEL STARVATION. A RELATED FACTOR WAS THE ALFALFA CROP IN THE EMERGENCY LANDING AREA.
- [NTSB LAX87LA327](https://openairdocs.org/ntsb/LAX87LA327), Sep 7, 1987: Ryan ST3KR (N53190), Aguila, AZ, substantial damage
- [NTSB MKC87LA170](https://openairdocs.org/ntsb/MKC87LA170), Sep 3, 1987: Ryan ST3KR (N3761Q), Springdale, AR, substantial damage
- [NTSB LAX87FA264](https://openairdocs.org/ntsb/LAX87FA264), Jul 13, 1987: Ryan ST3KR (N48777), Firebaugh, CA, destroyed, 2 fatal
- [NTSB FTW86LA170](https://openairdocs.org/ntsb/FTW86LA170), Sep 19, 1986: Ryan PT-22 (N48331), Kerrville, TX, substantial damage
- [NTSB LAX86LA128](https://openairdocs.org/ntsb/LAX86LA128), Feb 26, 1986: Ryan ST3KR (N51122), Camarillo, CA, substantial damage
- [NTSB FTW85LA285](https://openairdocs.org/ntsb/FTW85LA285), Jul 14, 1985: Ryan ST3KR (PT-22) (N46170), Hondo, TX, substantial damage
- [NTSB LAX83FA240](https://openairdocs.org/ntsb/LAX83FA240), May 21, 1983: Ryan PT-22/ST-3KR (N721R), Mesa, AZ, destroyed, 2 fatal
- [NTSB SEA81FA051](https://openairdocs.org/ntsb/SEA81FA051), Aug 8, 1981: Ryan Acft ST-3KR (N56005), Shelton, WA, destroyed, 2 fatal
- [NTSB FTW81FA078](https://openairdocs.org/ntsb/FTW81FA078), Apr 25, 1981: Ryan PT-22 (N883D), Fulshear, TX, destroyed, 2 fatal
- [NTSB LAX80FUJ53](https://openairdocs.org/ntsb/LAX80FUJ53), May 3, 1980: Ryan ST-3KR (N60155), Scottsdale, AZ, destroyed, 1 fatal
- [NTSB LAX80DVD10](https://openairdocs.org/ntsb/LAX80DVD10), Feb 5, 1980: Ryan PT-22 (N54907), Oakland, CA, substantial damage
- [NTSB CHI80FEM08](https://openairdocs.org/ntsb/CHI80FEM08), Dec 19, 1979: Ryan ST-3KR (N47433), Holland, MI, substantial damage
- [NTSB NYC79FA080](https://openairdocs.org/ntsb/NYC79FA080), Aug 19, 1979: Ryan PT-22 (N99994), Pittstown, NJ, substantial damage, 1 fatal
- [NTSB OAK79DVA26](https://openairdocs.org/ntsb/OAK79DVA26), Apr 14, 1979: Ryan ST3KR (N56209), Fresno, CA, substantial damage
- [NTSB NYC79FHD02](https://openairdocs.org/ntsb/NYC79FHD02), Oct 11, 1978: Ryan ST-3KR (N48928), Albion, NJ, substantial damage
- [NTSB MKC78FCG63](https://openairdocs.org/ntsb/MKC78FCG63), Sep 2, 1978: Ryan PT-22 (N48587), Hiawatha, KS, substantial damage

All 119: https://openairdocs.org/model/ryan-aeronautical-st3kr/ntsb.md

## FAA accident and incident reports (80, newest 50)

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 20200816013829A](https://openairdocs.org/incident/20200816013829A), Aug 16, 2020: Ryan Aeronautical ST3KR (N62130), Port Townsend, WA, Substantial damage. N62130 departed rwy 27 at Jefferson County International Airport and stayed in the traffic patter for touch and go landing practice. During the landing, after…
- [Accident 20150806019739A](https://openairdocs.org/incident/20150806019739A), Aug 6, 2015: Ryan Aeronautical ST3KR (N48701), Hollister, CA, Substantial damage, 1 fatal. The pilot of a PT-22 (ST3KR), N48701, failed to see a tractor parked on the grass runway at Frazier lake (1C9). The aircraft subsequently impacted the tractor…
- [Accident 20150305003199A](https://openairdocs.org/incident/20150305003199A), Mar 5, 2015: Ryan Aeronautical ST3KR (N53178), Venice Beach, CA, Substantial damage. Aircraft had departed the active 21 rwy at smo and upon climbout witnesses indicate they heard popping sounds followed by a sudden silence - pilot executed 180…
- [Accident 20140726014919A](https://openairdocs.org/incident/20140726014919A), Jul 26, 2014: Ryan Aeronautical ST3KR (N59418), Newnan, GA, Destroyed. The pilot operating the aircraft was attempting a fly by manuver at a private airfield. As the aircraft approached the end of the runway, the engine misfired…
- [Incident 20140124002929I](https://openairdocs.org/incident/20140124002929I), Jan 24, 2014: Ryan Aeronautical ST3KR (N53071), Fresno, CA, Minor damage. [privacy data omitted] Was practicing full stop landings from the front seat of this tandam seat aircraft, with an experienced pilot in the rear seat. The…
- [Accident 20120608013699A](https://openairdocs.org/incident/20120608013699A), Jun 8, 2012: Ryan Aeronautical ST3KR (N721R), Norwalk, OH, Substantial damage. Pilot sated that on landing right brake stuck and aircraft veered to the right off of runway and struck ditch. Pilot and owner failed to notify the FAA of this…
- [Accident 20110724015179A](https://openairdocs.org/incident/20110724015179A), Jul 24, 2011: Ryan Aeronautical ST3KR (N2ER), Sagaponack, NY, Destroyed. Aircraft departed khto after 30 min. Of flight pilot performs a missed approach at fosters farm landing strip, during climb out aircraft lost power due to fuel…
- [Accident 20110110000379A](https://openairdocs.org/incident/20110110000379A), Jan 10, 2011: Ryan Aerona ST3KR (N57027), Warner Springs, CA, Destroyed, 1 fatal. 01/12/2011: Spoke with [privacy data omitted] (cami - okc) today concerning airman [privacy data omitted] medical certificate. [privacy data omitted] Wanted to…
- [Accident 20070106000919A](https://openairdocs.org/incident/20070106000919A), Jan 6, 2007: Ryan ST3KR (N56434), Lake Butler, FL, Substantial damage. (-23) The pilot [privacy data omitted] stated the aircraft lost power and made an emergency landing in a small field near Lake Butler, Florida. The aircraft…
- [Incident 20060722015249I](https://openairdocs.org/incident/20060722015249I), Jul 22, 2006: Ryan ST3KR (N221SH), Brussels, IL, Substantial damage. (-23) Aircraft departed creve cour, MO on a northbound heading approximately 3:30 pm, Saturday July 22, 2006. About 20 to 25 minutes into the flight the engine…
- [Accident 20051114029099A](https://openairdocs.org/incident/20051114029099A), Nov 14, 2005: Ryan ST3KR (N56038), Lincoln, CA, Substantial damage. (-23) The aircraft crashed in a field 3 miles southwest of the airport. The aircraft suffered substantial damage and ended up inverted. The lone occupant…
- [Incident 20051021027389I](https://openairdocs.org/incident/20051021027389I), Oct 21, 2005: Ryan ST3KR (N48742), Fontana, CA. (-23) Pilot reported after approximately 20 minutes of flight the engine lost power. Pilot landed in a dirt field with no damage or injuries. Pilot was…
- [Accident 20040919035589A](https://openairdocs.org/incident/20040919035589A), Sep 19, 2004: Ryan ST3KR (N57015), Bealeton, VA, Substantial damage. (-23) N57015 with the pilot [privacy data omitted] as pilot in command departed flying circus aerodrome enroute to W66 (warrenton-faquier airport). The engine…
- [Incident 20011107029079I](https://openairdocs.org/incident/20011107029079I), Nov 7, 2001: Ryan ST3KR (N53431), Louisville, KY, Minor damage. (-23) Pilot operated aircraft with full fuel and 260 lbs passenger. Pilot stated aircraft was probably over gross weight limit. On takeoff, aircraft stalled,…
- [Accident 20010824025769A](https://openairdocs.org/incident/20010824025769A), Aug 24, 2001: Ryan ST3KR (N48742), Camarillo, CA, Substantial damage. (.19) On August 24, 2001, at 1820 hours pacific daylight time, a Ryan ST3KR, N48742, was substantially damaged during an off-airport emergency landing near…
- [Accident 20010422007899A](https://openairdocs.org/incident/20010422007899A), Apr 22, 2001: Ryan ST3KR (N46503), Rancho Calif, CA, Substantial damage. (.19)On April 22, 2001, at 1130 hours pacific daylight time, a Ryan ST3KR, N46503, was substantially damaged when the aircraft's wing impacted a post during…
- [Accident 20001021040419A](https://openairdocs.org/incident/20001021040419A), Oct 21, 2000: Ryan ST3KR (N50870), Georgetown, CA, No damage. (-23) Pilot departed runway 34. The plane stayed low over the runway then initiated a steep pull up. Aircraft went into a right bank, the nose rose and the…
- [Accident 20000819013439A](https://openairdocs.org/incident/20000819013439A), Aug 19, 2000: Ryan ST3KR (N54403), Stlucie, FL, Substantial damage. (-23- On VFR flight from st lucie airport, ft pierce, FL to stuart, FL. A/c lost power. Pilot then applied carb heat. The engine regained partial power…
- [Accident 19990710008849A](https://openairdocs.org/incident/19990710008849A), Jul 10, 1999: Ryan ST3KR (N47306), Lake City, FL, Substantial damage. Acft propeller separated in flight, the pilot made an emergency landing, and the acft was destroyed. (.19) on July 10, 1999, about 1330 eastern standard time,…
- [Accident 19981014029059A](https://openairdocs.org/incident/19981014029059A), Oct 14, 1998: Ryan ST3KR (N59514), Rossville, TN, Destroyed, 1 fatal. Acft crashed under unknown circumstances. (.19)on October 14, 1998, about 1322 central daylight time, a Ryan ST3KR, N59514, operating as a 14 CFR part 91…
- [Accident 19980909022859A](https://openairdocs.org/incident/19980909022859A), Sep 9, 1998: Ryan ST3KR (N22JK), Los Banos, CA, Substantial damage. Ryan aeronautical ST3KR acft ground looped on takeoff. (-23)this accident occurred as a result of an attempted takeoff in a crosswind that exceeded the pilot's…
- [Accident 19980301008369A](https://openairdocs.org/incident/19980301008369A), Mar 1, 1998: Ryan ST3KR (N57085), Davis, CA, Substantial damage. Veered off runway. Failed to note change in wind direction. (.4)the pilot was performing a wheel landing and said that when he lowered the tail, the aircraft…
- [Accident 19960705016269A](https://openairdocs.org/incident/19960705016269A), Jul 5, 1996: Ryan ST3KR (N57017), Santa Paula, CA, Destroyed, 2 fatal. Partial power loss. Stalled steep tight turn trying to make runway. Impacted near vertical. No anomalies found. (.19) on July 5, 1996, at 0823 hours pacific…
- [Accident 19950721048859A](https://openairdocs.org/incident/19950721048859A), Jul 21, 1995: Ryan ST3KR (N47082), Toughkenamon, PA, Substantial damage. (-16) On site investigation revealed there was approx. 8 gals of fuel remaining at the time of the accident. (Fuel tank capacity 20 gals). The pilot stated…
- [Accident 19950422027979A](https://openairdocs.org/incident/19950422027979A), Apr 22, 1995: Ryan ST3KR (N214D), Apple Valley, CA, Destroyed, 1 fatal. Began a roll too low and too slow. Stalled while inverted and dived into ground.
- [Accident 19950320004909A](https://openairdocs.org/incident/19950320004909A), Mar 20, 1995: Ryan ST3KR (N54430), Wesminster, TX, Substantial damage. Lost power departing Private strip nosed over in plowed field off end runway. Cause power loss unable determine.
- [Incident 19940401010159I](https://openairdocs.org/incident/19940401010159I), Apr 1, 1994: Ryan ST3KR (N61005), Manvel, TX, Minor damage. Operatpr jamd propped emgome. Pilot had brakes on. Throttle open. Aircraft nosed up. Propeller struck ground.
- [Accident 19920511014369A](https://openairdocs.org/incident/19920511014369A), May 11, 1992: Ryan ST3KR (N4223P), Anacortes, WA, Destroyed. Blew a jug on climbout. Crash landed on city street. NR5 cylinder lost aft engine counterweight began destruction
- [Accident 19910616023269A](https://openairdocs.org/incident/19910616023269A), Jun 16, 1991: Ryan ST3KR (N46795), Santa Maria, CA, Substantial damage. Neglected to turn on oil supply valve prior to takeoff. Lost oil pressure. Elected to land on a road. Wing hit sign
- [Accident 19900923041631A](https://openairdocs.org/incident/19900923041631A), Sep 23, 1990: Ryan ST3KR (N57015), Warrenton, VA, Destroyed. During takeoff on 33 collided with N9279 taxiing opposite direction. Hill hid aircraft from other. Flagman errored.
- [Accident 19900829037509A](https://openairdocs.org/incident/19900829037509A), Aug 29, 1990: Ryan PT22A (N5481L), Greenville, MI, Substantial damage. Engine misfired then lost top cylinder. Landed in tall corn. Flipped over. Cylinder mounting bolts had sheared.
- [Accident 19900620021571A](https://openairdocs.org/incident/19900620021571A), Jun 20, 1990: Ryan ST3KR (N48743), Fabens, TX, Substantial damage. On landing roll collided with opposite traffic N76728 landing on 08. Several ryans landing. One called clear runway
- [Accident 19890826031889A](https://openairdocs.org/incident/19890826031889A), Aug 26, 1989: Ryan ST3KR (N59466), Hawthorne, CA, Substantial damage. Engine RPM drop and vibration. Hit several obstructions on forced landing. Indicates oil tank valve was off.
- [Accident 19890820030459A](https://openairdocs.org/incident/19890820030459A), Aug 20, 1989: Ryan ST3KR (N239), Factoryville, PA, Substantial damage. Too long to wait for fuel truck departed for another airport ran out of fuel two miles short. Hit ditch nosed over.
- [Accident 19890731025911A](https://openairdocs.org/incident/19890731025911A), Jul 31, 1989: Ryan PT22 (N54403), Oshkosh, WI, Substantial damage. After liftoff struck a taylor E2 N2414 that was crossing the runway. Both had clearance. Ground crew error in timing
- [Incident 19890702037639I](https://openairdocs.org/incident/19890702037639I), Jul 2, 1989: Ryan ST3KR (N53071), Camp Roberts, CA, Minor damage. Engine problem. Contacted powerlines on approach. Made a go around and flew to Roberts. NR3 cylinder head bad.
- [Accident 19890606014409A](https://openairdocs.org/incident/19890606014409A), Jun 6, 1989: Ryan ST3KR (N48749), La Salle, CO, Substantial damage. Engine quit en route. Nosed over landing in an alfalfa field. Found fuel tank vent clogged by a dirt dauber insect.
- [Incident 19871122079539I](https://openairdocs.org/incident/19871122079539I), Nov 22, 1987: Ryan ST3KR (N57085), Vacaville, CA. Experienced sudden and severe engine vibration. Shut down engine. Landed in a field. Propeller tip broke off.
- [Accident 19870907049909A](https://openairdocs.org/incident/19870907049909A), Sep 7, 1987: Ryan ST3KR (N53190), Aguila, AZ, Substantial damage. Bounced off the runway on landing and struck a concrete ditch structure then veered into the ditch.
- [Accident 19870903080029A](https://openairdocs.org/incident/19870903080029A), Sep 3, 1987: Ryan ST3KR (N3761Q), Springdale, AR, Substantial damage. Engine failed on climbout. Returned. Hard landing on airport but not on runway. Found dirt in carburetor bowl.
- [Accident 19870712083149A](https://openairdocs.org/incident/19870712083149A), Jul 12, 1987: Ryan ST3KR (N48777), Firebaugh, CA, Destroyed, 2 fatal. Advised other aircraft traveling together of forced landing then crashed. Was out of fuel. Had consumed alcohol.
- [Accident 19860919081582A](https://openairdocs.org/incident/19860919081582A), Sep 19, 1986: Ryan ST3KR (N48331), Kerrville, TX, Substantial damage. On rollout the wingtip struck an ultralight that had just lifted off. Pilot failed to see conflicting traffic.
- [Incident 19860608032859I](https://openairdocs.org/incident/19860608032859I), Jun 8, 1986: Ryan PT22 (N58651), Camarillo, CA, Minor damage. Noted wing would not clear construction barrier on taxiway. Applied brakes and aircraft nosed over.
- [Accident 19860226003949A](https://openairdocs.org/incident/19860226003949A), Feb 26, 1986: Ryan ST3KR (N51122), Oxnard, CA, Substantial damage. Engine quit after power reduction. Nosed over during landing in a soft field. Worn throttle linkage had separated.
- [Incident 19851011055429I](https://openairdocs.org/incident/19851011055429I), Oct 11, 1985: Ryan ST3KR (N50870), San Miguel, CA, Minor damage. While attempting landing in crosswind left wingtip struck ground and aircraft ground looped.
- [Accident 19850714031009A](https://openairdocs.org/incident/19850714031009A), Jul 14, 1985: Ryan ST3KR (N46170), Hondo, TX, Substantial damage. Struck powerlines during forced landing due to loss of engine power. Cause of engine power loss undetermined.
- [Accident 19830521020359A](https://openairdocs.org/incident/19830521020359A), May 21, 1983: Ryan PT22 (N721R), Mesa, AZ, Destroyed. Failed to recover from a spin. Was last seen doing a snap roll.
- [Incident 19820508024379I](https://openairdocs.org/incident/19820508024379I), May 8, 1982: Ryan ST3KR (N48016), Ravenna, OH, Minor damage. Pilot landed in right crosswind, veered off right side of runway. Hit ditch, flipped over.
- [Accident 19810808047929A](https://openairdocs.org/incident/19810808047929A), Aug 8, 1981: Ryan ST3KR (N56005), Shelton, WA, Destroyed, 1 fatal. Aircraft was observed doing aerobatics over airport. During a turn, aircraft intered spin and spun into ground.
- [Incident 19810502029549I](https://openairdocs.org/incident/19810502029549I), May 2, 1981: Ryan ST3KR (N47012), Cincinnati, OH, Minor damage. Ground loop during rollout; ran off one side of runway.

All 80: https://openairdocs.org/model/ryan-aeronautical-st3kr/incidents.md

## Service difficulty reports (2)

As reported by operators and repair stations, by the model named in the report.

- [SDR 2006FA0000213](https://openairdocs.org/sdr/2006FA0000213), Feb 17, 2006: BATTERY. MISINSTALLED. DURING REPLACEMENT OF BATTERIES FROM ELT CASE, MODERATE FORCE WAS NEEDED TO REMOVE THE BOTTOM 4 BATTERIES. THE FIT OF THE NEW BATTERIES INTO THE CASE WAS VERY T
- [SDR 2001FA0000583](https://openairdocs.org/sdr/2001FA0000583), Oct 5, 2001: WIRE. MISSING. NEW EXCHANGE ALTERNATOR SUPPLIED. ALTERNATOR OUTPUT OK. PANEL INOPERATIVE LIGHT STAYS ILLUMINATED. INSPECTION OF ALTERNATOR REVEALED MISSING LEAD WIRE FROM STAT

## STCs that may be installed (OpenAirDocs) (32)

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 SA04652CH](https://openairdocs.org/stc/SA04652CH): To allow use of 100R grade aviation fuel meeting Swift Fuel, LLC specification. Swift Fuels LLC
- [STC SA7965SW](https://openairdocs.org/stc/SA7965SW): Application of fabric and polyurethane finishing system. Shady Aviation LLC
- [STC SA01757WI](https://openairdocs.org/stc/SA01757WI): To allow the use of UL91 or UL94 (minimum) grade aviation fuel. Swift Fuels LLC
- [STC SA01967WI](https://openairdocs.org/stc/SA01967WI): Use of GAMI G100UL High Octane Unleaded Avgas. General Aviation Modifications Inc
- [STC SA04776NY](https://openairdocs.org/stc/SA04776NY): The HIPEC Covering and Finishing System must be performed and maintained. HIPEC Aircraft Coatings Inc
- [STC SA01831WI](https://openairdocs.org/stc/SA01831WI): To allow the use of UL91 (minimum) grade aviation fuel. Petersen Aviation Inc
- [STC SA01406NY](https://openairdocs.org/stc/SA01406NY): Installation of Airwolf remote mounted engine oil filter kit AFC-K017 on single and multi-engine fixed light aircraft and rotary wing. Airwolf Filter Corporation
- [STC SA01734SE](https://openairdocs.org/stc/SA01734SE): Application of Stewart Systems synthetic fabric covering system to aircraft fuselage, wings, tail surfaces, control surfaces and related parts. Andrew D. Humphrey
- [STC SA00478CH](https://openairdocs.org/stc/SA00478CH): Installation of Cooper Superflite 102 Fabric. Aviation Products Systems Inc
- [STC SA02283SE PAGE 2](https://openairdocs.org/stc/SA02283SE%20PAGE%202): Installation of Electronics International Inc. Glass Panel Engine Monitor (with In Flight Data) CGR-30P. Electronics International Inc
- [STC SA02402SE PAGE 2](https://openairdocs.org/stc/SA02402SE%20PAGE%202): Installation of Electronics International Inc. Glass Panel Engine Monitor (with In-Flight Data) CGR-30C. Electronics International Inc
- [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 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 SA2921WE](https://openairdocs.org/stc/SA2921WE): Reduce size of cockpit openings, install rounded windshields, flush rivet and increase fuselage skin gages, install internal top longerons, remove external top longerons and install internal aileron balance weight. Helicorp Inc
- [STC SA4317WE](https://openairdocs.org/stc/SA4317WE): Installation of Ranger 6-440-C5 engine, Sensenich 86R61 propeller, and auxiliary fuel pump, and associated changes. Helicorp Inc
- [STC SA4463NM](https://openairdocs.org/stc/SA4463NM): Installation of Ryan Model ST-A type main landing gear. Helicorp Inc
- [STC SA00680SE](https://openairdocs.org/stc/SA00680SE): Installation of Electronics International model UBG-16 or UBG-16T bar graph engine analyzer. Electronics International
- [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 SA1363GL](https://openairdocs.org/stc/SA1363GL): Surrendered and incorporated into STC SA00478CH. Cooper Aviation Supply Company, Inc
- [STC SA02168AK](https://openairdocs.org/stc/SA02168AK): Installation of hourmeter airspeed switch. For unpressurized aircraft only. Pressurized aircraft must have pressurization system deactivated. Avalaska Inc
- [STC SA2-952](https://openairdocs.org/stc/SA2-952): Installation of fiberglass covering. Razorback Fabrics Inc
- [STC SA00754AT](https://openairdocs.org/stc/SA00754AT): Installation of Sensenich propellers, W 90HASP86, or W 90HASP87, or W 90HASP88, or W 90HASP89, on the Kinner R55 or R56 engines. National Ryan Club
- [STC SA00188WI](https://openairdocs.org/stc/SA00188WI): Operation of airplane on unleaded or leaded automotive gasoline, 87 minimum antiknock index (RON+MON)/2. Petersen Aviation Inc
- [STC SA1626NM PAGE 2](https://openairdocs.org/stc/SA1626NM%20PAGE%202): Installation of Electronics Int'l Digital EGT/CHT Instruments and accessories. (201 Series). Electronics International
- [STC SA4302NM](https://openairdocs.org/stc/SA4302NM): Installation of Electronics Int'l digital automatic engine analyzer. Electronics International
- [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 SA4-1210](https://openairdocs.org/stc/SA4-1210): Installation of Eonnex cover on aircraft surfaces. Ceconite, Inc
- [STC SA1350WE](https://openairdocs.org/stc/SA1350WE): Replace existing fabric on wings, fuselage, empennage and/or control surfaces with fiberglass cloth. Ceconite, Inc
- [STC SA4-822](https://openairdocs.org/stc/SA4-822): Ceconite 101 covering of wings, flaps, ailerons, horizontal stabilizer and elevators. Cooper Engineering Corporation
- [STC SA4-840](https://openairdocs.org/stc/SA4-840): Fabric replaced with glass cloth on wings, fuselage, empennage and/or control surfaces. Air Fibre Inc

---
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