# Continental W670 series

- Type: Engine model (FAA registry)
- Registry code: 17018
- Manufacturer (registry): CONT MOTOR
- Model: W670 SERIES
- Engine type: Reciprocating
- Power: 250 hp
- Installed in: 987 registered aircraft
- Page: https://openairdocs.org/engine/continental-w670-series

The registry names only the engine series, so ADs for every model in the series are matched.

## ADs that may apply (OpenAirDocs)

Matched to this engine model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment.

- [AD 53-09-04](https://openairdocs.org/ad/53-09-04): Propeller Blades · Continental W-670-9A
- [AD 50-12-01](https://openairdocs.org/ad/50-12-01): Propeller Blade · Hamilton Standard Propeller Blades, W670-16, W670-6A and 1 more

## Registered aircraft (987, first 50)

- [N1004](https://openairdocs.org/aircraft/N1004): [Glover William S](https://openairdocs.org/faa-owner/GLOVER%20WILLIAM%20S), [Mount Pleasant, TX](https://openairdocs.org/faa-place/TX/Mount%20Pleasant), built 1928, S/N 416
- [N1006D](https://openairdocs.org/aircraft/N1006D): [Obrian Laurence J](https://openairdocs.org/faa-owner/OBRIAN%20LAURENCE%20J), [Northridge, CA](https://openairdocs.org/faa-place/CA/Northridge), S/N 7614
- [N10218](https://openairdocs.org/aircraft/N10218): [Porter Wade R](https://openairdocs.org/faa-owner/PORTER%20WADE%20R), [Chico, CA](https://openairdocs.org/faa-place/CA/Chico), built 1959, S/N 18
- [N10250](https://openairdocs.org/aircraft/N10250): [Adcock Colton L](https://openairdocs.org/faa-owner/ADCOCK%20COLTON%20L), [Dustin, OK](https://openairdocs.org/faa-place/OK/Dustin), built 1960, S/N 50
- [N10256](https://openairdocs.org/aircraft/N10256): [Triple F Flying Inc](https://openairdocs.org/faa-owner/TRIPLE%20F%20FLYING%20INC), [Benton, PA](https://openairdocs.org/faa-place/PA/Benton), S/N 56
- [N10294](https://openairdocs.org/aircraft/N10294): [Miller Andy](https://openairdocs.org/faa-owner/MILLER%20ANDY), [Marana, AZ](https://openairdocs.org/faa-place/AZ/Marana), S/N 94
- [N1042M](https://openairdocs.org/aircraft/N1042M): [Dusters And Sprayers Supply Inc](https://openairdocs.org/faa-owner/DUSTERS%20AND%20SPRAYERS%20SUPPLY%20INC), [Chickasha, OK](https://openairdocs.org/faa-place/OK/Chickasha), S/N 75-7136
- [N1044D](https://openairdocs.org/aircraft/N1044D): [Mcadam Charles T](https://openairdocs.org/faa-owner/MCADAM%20CHARLES%20T), [Wichita, KS](https://openairdocs.org/faa-place/KS/Wichita), built 1951, S/N 7656
- [N1046M](https://openairdocs.org/aircraft/N1046M): [Stoos Robert A](https://openairdocs.org/faa-owner/STOOS%20ROBERT%20A), [Lakeland, FL](https://openairdocs.org/faa-place/FL/Lakeland), built 1943, S/N 75-7204
- [N10471](https://openairdocs.org/aircraft/N10471): [Dyson Keith A](https://openairdocs.org/faa-owner/DYSON%20KEITH%20A), [Port Townsend, WA](https://openairdocs.org/faa-place/WA/Port%20Townsend), built 1929, S/N 2
- [N1048M](https://openairdocs.org/aircraft/N1048M): [Mccullough Carol Charlene Trustee](https://openairdocs.org/faa-owner/MCCULLOUGH%20CAROL%20CHARLENE%20TRUSTEE), [Tulsa, OK](https://openairdocs.org/faa-place/OK/Tulsa), built 1942, S/N 75-6669
- [N104H](https://openairdocs.org/aircraft/N104H): [Air Cav Helicopters LLC](https://openairdocs.org/faa-owner/AIR%20CAV%20HELICOPTERS%20LLC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), S/N 75-2820
- [N1058D](https://openairdocs.org/aircraft/N1058D): [Morley Philip](https://openairdocs.org/faa-owner/MORLEY%20PHILIP), [Manhattan Beach, CA](https://openairdocs.org/faa-place/CA/Manhattan%20Beach), built 1951, S/N 7670
- [N1066M](https://openairdocs.org/aircraft/N1066M): [N1066m LLC](https://openairdocs.org/faa-owner/N1066M%20LLC), [Vero Beach, FL](https://openairdocs.org/faa-place/FL/Vero%20Beach), built 1942, S/N 75-7932
- [N1068N](https://openairdocs.org/aircraft/N1068N): [Travis Brent N](https://openairdocs.org/faa-owner/TRAVIS%20BRENT%20N), [Hayden Lake, ID](https://openairdocs.org/faa-place/ID/Hayden%20Lake), built 1943, S/N 75-5364
- [N107PR](https://openairdocs.org/aircraft/N107PR): [Downwind Flight LLC](https://openairdocs.org/faa-owner/DOWNWIND%20FLIGHT%20LLC), [San Antonio, TX](https://openairdocs.org/faa-place/TX/San%20Antonio), built 1941, S/N 75-829
- [N1080D](https://openairdocs.org/aircraft/N1080D): [Pedron Mathew G](https://openairdocs.org/faa-owner/PEDRON%20MATHEW%20G), [Chico, TX](https://openairdocs.org/faa-place/TX/Chico), built 1951, S/N 7692
- [N10Q](https://openairdocs.org/aircraft/N10Q): [Hammerle Tye F](https://openairdocs.org/faa-owner/HAMMERLE%20TYE%20F), [Kenosha, WI](https://openairdocs.org/faa-place/WI/Kenosha), built 1940, S/N 75-301
- [N11253](https://openairdocs.org/aircraft/N11253): [Patterson John Miles II](https://openairdocs.org/faa-owner/PATTERSON%20JOHN%20MILES%20II), [Frankfort, KY](https://openairdocs.org/faa-place/KY/Frankfort), built 1931, S/N 3212
- [N11274](https://openairdocs.org/aircraft/N11274): [Vintage Aero Inc](https://openairdocs.org/faa-owner/VINTAGE%20AERO%20INC), [Duncan, OK](https://openairdocs.org/faa-place/OK/Duncan), built 1933, S/N 3690
- [N11427](https://openairdocs.org/aircraft/N11427): [Murray Thomas J](https://openairdocs.org/faa-owner/MURRAY%20THOMAS%20J), [South Hampton, NH](https://openairdocs.org/faa-place/NH/South%20Hampton), built 1931, S/N 3488
- [N11440](https://openairdocs.org/aircraft/N11440): [Aerojet Services Inc](https://openairdocs.org/faa-owner/AEROJET%20SERVICES%20INC), [Aurora, CO](https://openairdocs.org/faa-place/CO/Aurora), S/N 3497
- [N11453](https://openairdocs.org/aircraft/N11453): [Callis Aviation LLC](https://openairdocs.org/faa-owner/CALLIS%20AVIATION%20LLC), [Roanoke, VA](https://openairdocs.org/faa-place/VA/Roanoke), built 1931, S/N 3539
- [N11468](https://openairdocs.org/aircraft/N11468): [Maples Charles S](https://openairdocs.org/faa-owner/MAPLES%20CHARLES%20S), [Fairfax, VA](https://openairdocs.org/faa-place/VA/Fairfax), S/N 3541
- [N11470](https://openairdocs.org/aircraft/N11470): [Lovley Forrest T](https://openairdocs.org/faa-owner/LOVLEY%20FORREST%20T), [Jordan, MN](https://openairdocs.org/faa-place/MN/Jordan), built 1931, S/N 3513
- [N11478](https://openairdocs.org/aircraft/N11478): [Taylor Daniel J](https://openairdocs.org/faa-owner/TAYLOR%20DANIEL%20J), [Dandridge, TN](https://openairdocs.org/faa-place/TN/Dandridge), built 1932, S/N 3559
- [N11490](https://openairdocs.org/aircraft/N11490): [Pietsch Warren A](https://openairdocs.org/faa-owner/PIETSCH%20WARREN%20A), [Minot, ND](https://openairdocs.org/faa-place/ND/Minot), built 1931, S/N 3572
- [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
- [N1203M](https://openairdocs.org/aircraft/N1203M): [Heritage Aviation LLC](https://openairdocs.org/faa-owner/HERITAGE%20AVIATION%20LLC), [Shannon, IL](https://openairdocs.org/faa-place/IL/Shannon), built 1943, S/N 75-8167
- [N12237](https://openairdocs.org/aircraft/N12237): [Mone Brent C](https://openairdocs.org/faa-owner/MONE%20BRENT%20C), [Santa Rosa, CA](https://openairdocs.org/faa-place/CA/Santa%20Rosa), built 1936, S/N 3
- [N12374](https://openairdocs.org/aircraft/N12374): [Swindle Don K](https://openairdocs.org/faa-owner/SWINDLE%20DON%20K), [Collinsville, TX](https://openairdocs.org/faa-place/TX/Collinsville), built 2006, S/N 3764
- [N12428](https://openairdocs.org/aircraft/N12428): [Flying Barefoot Ranch LLC](https://openairdocs.org/faa-owner/FLYING%20BAREFOOT%20RANCH%20LLC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 1940, S/N 3569
- [N12438](https://openairdocs.org/aircraft/N12438): [Groveland, CA](https://openairdocs.org/faa-place/CA/Groveland), built 1932, S/N 3579, Sale reported
- [N12443](https://openairdocs.org/aircraft/N12443): [Steeves Brian](https://openairdocs.org/faa-owner/STEEVES%20BRIAN), [Wahpeton, ND](https://openairdocs.org/faa-place/ND/Wahpeton), built 1932, S/N 3606
- [N124BH](https://openairdocs.org/aircraft/N124BH): [Mccusker Marina](https://openairdocs.org/faa-owner/MCCUSKER%20MARINA), [Stuart, FL](https://openairdocs.org/faa-place/FL/Stuart), S/N 75-7606
- [N12557](https://openairdocs.org/aircraft/N12557): [Collins Roger D](https://openairdocs.org/faa-owner/COLLINS%20ROGER%20D), [Woodinville, WA](https://openairdocs.org/faa-place/WA/Woodinville), built 1941, S/N 75-2625
- [N129L](https://openairdocs.org/aircraft/N129L): [Old Goat LLC](https://openairdocs.org/faa-owner/OLD%20GOAT%20LLC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 1943, S/N 75-8581
- [N12FR](https://openairdocs.org/aircraft/N12FR): [Weston David](https://openairdocs.org/faa-owner/WESTON%20DAVID), [Burke, VA](https://openairdocs.org/faa-place/VA/Burke), S/N 75-4581
- [N13027](https://openairdocs.org/aircraft/N13027): [Western Antique Aeroplane & Automobile Museum](https://openairdocs.org/faa-owner/WESTERN%20ANTIQUE%20AEROPLANE%20%26%20AUTOMOBILE%20MUSEUM), [Hood River, OR](https://openairdocs.org/faa-place/OR/Hood%20River), built 1932, S/N 3660
- [N13050](https://openairdocs.org/aircraft/N13050): [Plane Fun Inc Tr Trustee](https://openairdocs.org/faa-owner/PLANE%20FUN%20INC%20TR%20TRUSTEE), [Snellville, GA](https://openairdocs.org/faa-place/GA/Snellville), built 1932, S/N 3678
- [N13071](https://openairdocs.org/aircraft/N13071): [Period Aviation LLC](https://openairdocs.org/faa-owner/PERIOD%20AVIATION%20LLC), [Babylon, NY](https://openairdocs.org/faa-place/NY/Babylon), built 1933, S/N 3689
- [N13072](https://openairdocs.org/aircraft/N13072): [Bonafide Investments LLC](https://openairdocs.org/faa-owner/BONAFIDE%20INVESTMENTS%20LLC), [Dover, DE](https://openairdocs.org/faa-place/DE/Dover), built 1933, S/N 3724
- [N1307N](https://openairdocs.org/aircraft/N1307N): [Weir Ryan L](https://openairdocs.org/faa-owner/WEIR%20RYAN%20L), [Buckley, WA](https://openairdocs.org/faa-place/WA/Buckley), S/N 75-5135
- [N130PT](https://openairdocs.org/aircraft/N130PT): [Mount Glenn W](https://openairdocs.org/faa-owner/MOUNT%20GLENN%20W), [Modesto, CA](https://openairdocs.org/faa-place/CA/Modesto), built 1942, S/N 325H0
- [N1315N](https://openairdocs.org/aircraft/N1315N): [Devries Douglas F](https://openairdocs.org/faa-owner/DEVRIES%20DOUGLAS%20F), [Everett, WA](https://openairdocs.org/faa-place/WA/Everett), built 1942, S/N 75-5453
- [N13244](https://openairdocs.org/aircraft/N13244): [Alacoast Vintage Biplanes LLC](https://openairdocs.org/faa-owner/ALACOAST%20VINTAGE%20BIPLANES%20LLC), [Irvington, AL](https://openairdocs.org/faa-place/AL/Irvington), built 1941, S/N 75-908
- [N1327M](https://openairdocs.org/aircraft/N1327M): [Mbs Aviation LLC](https://openairdocs.org/faa-owner/MBS%20AVIATION%20LLC), [Topsail Beach, NC](https://openairdocs.org/faa-place/NC/Topsail%20Beach), built 1943, S/N 75-8125
- [N1329M](https://openairdocs.org/aircraft/N1329M): [Stahl John](https://openairdocs.org/faa-owner/STAHL%20JOHN), [Union Dale, PA](https://openairdocs.org/faa-place/PA/Union%20Dale), built 1943, S/N 758623
- [N1333D](https://openairdocs.org/aircraft/N1333D): [Baldock Patrick M](https://openairdocs.org/faa-owner/BALDOCK%20PATRICK%20M), [Carleton, MI](https://openairdocs.org/faa-place/MI/Carleton), built 1942, S/N 5838
- [N133R](https://openairdocs.org/aircraft/N133R): [Kent Carroll G](https://openairdocs.org/faa-owner/KENT%20CARROLL%20G), [Newborn, GA](https://openairdocs.org/faa-place/GA/Newborn), built 1942, S/N 75-6881

All 987: https://openairdocs.org/engine/continental-w670-series/aircraft.md

## NTSB investigations (603, 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 ERA26LA251](https://openairdocs.org/ntsb/ERA26LA251), Jun 26, 2026: Jones Peter M Boeing/Jones 75 (N3993C), Cleveland, GA, substantial damage, investigation ongoing
- [NTSB CEN25LA370](https://openairdocs.org/ntsb/CEN25LA370), Sep 7, 2025: Boeing E75 (N75675), Benton, KS, substantial damage. Probable cause: The pilot's failure to maintain clearance from a moving vehicle during an evasive maneuver from a perceived conflict with another airplane. Contributing to the accident was the pilot of the other…
- [NTSB WPR25LA172](https://openairdocs.org/ntsb/WPR25LA172), Jun 15, 2025: Boeing B75N1 (N6848), Spokane Valley, WA, substantial damage. Probable cause: The pilot’s failure to maintain directional control during a takeoff roll in quartering tailwind conditions.
- [NTSB ERA25LA192](https://openairdocs.org/ntsb/ERA25LA192), Mar 28, 2025: Boeing A75N1(PT17) (N65011), Fort Myers, FL, substantial damage. Probable cause: The pilot’s failure to maintain directional control of the airplane while landing in gusting crosswind conditions, which resulted in the left wing impacting the runway.
- [NTSB CEN25LA025](https://openairdocs.org/ntsb/CEN25LA025), Oct 21, 2024: Boeing A75N1 (N62394), Denton, TX, substantial damage. Probable cause: The partial loss of engine power during the initial climb and the pilot’s failure to maintain directional control during the forced landing with a tailwind.
- [NTSB CEN25LA004](https://openairdocs.org/ntsb/CEN25LA004), Oct 4, 2024: Boeing E75 (N1612M), Sanger, TX, substantial damage. Probable cause: The pilot’s failure to maintain airplane control.
- [NTSB WPR24LA250](https://openairdocs.org/ntsb/WPR24LA250), Jul 18, 2024: Boeing B75N1/N2S-3 (N54173), Hollister, CA, substantial damage. Probable cause: The pilot’s loss of directional control on landing, which resulted in a nose over.
- [NTSB ANC24LA036](https://openairdocs.org/ntsb/ANC24LA036), May 17, 2024: Cessna 190 (N1500D), San Luis Obispo, CA, substantial damage. Probable cause: The pilot’s failure to maintain directional control during the landing roll, which resulted in a failure of the right main landing gear and subsequent ground loop.
- [NTSB ERA24LA125](https://openairdocs.org/ntsb/ERA24LA125), Feb 24, 2024: Waco UPF-7 (N30169), Atlanta, GA, substantial damage. Probable cause: The pilot’s failure to maintain directional control during the landing in gusting crosswind conditions.
- [NTSB ERA23LA345](https://openairdocs.org/ntsb/ERA23LA345), Aug 20, 2023: Waco UPF-7 (N39721), Warrenton, VA, substantial damage. Probable cause: A ground loop during landing resulting from a partial separation of the right main landing gear strut during takeoff.
- [NTSB CEN23LA156](https://openairdocs.org/ntsb/CEN23LA156), Apr 13, 2023: Boeing A75N1(PT17) (N50142), Evansville, IN, substantial damage. Probable cause: The pilot’s failure to engage the tailwheel lock before landing which resulted in the loss of control and ground loop.
- [NTSB WPR23LA050](https://openairdocs.org/ntsb/WPR23LA050), Oct 26, 2022: Boeing A75N1(PT17) (N75321), Long Beach, CA, substantial damage. Probable cause: The pilot’s failure to maintain directional control during landing.
- [NTSB WPR23LA014](https://openairdocs.org/ntsb/WPR23LA014), Oct 15, 2022: Boeing A75N1(PT17) (N42PT), Petaluma, CA, substantial damage. Probable cause: The pilot’s failure to maintain directional control during landing in gusting wind.
- [NTSB CEN22LA393](https://openairdocs.org/ntsb/CEN22LA393), Aug 24, 2022: Boeing B75N1 (N66417), Harvard, IL, substantial damage. Probable cause: The pilot’s failure to maintain directional control during take-off, which resulted in a collision with crop and terrain.
- [NTSB ERA22LA379](https://openairdocs.org/ntsb/ERA22LA379), Aug 20, 2022: Boeing A75N1 (N55267), Bealeton, VA, substantial damage. Probable cause: The pilot of the departing airplane’s failure to see and avoid the landing airplane before takeoff, resulting in a collision with the landing airplane. Contributing was the airport’s failure to…
- [NTSB ERA22LA379](https://openairdocs.org/ntsb/ERA22LA379), Aug 20, 2022: Boeing A75N1 (N52652), Bealeton, VA, substantial damage. Probable cause: The pilot of the departing airplane’s failure to see and avoid the landing airplane before takeoff, resulting in a collision with the landing airplane. Contributing was the airport’s failure to…
- [NTSB ERA22LA364](https://openairdocs.org/ntsb/ERA22LA364), Aug 6, 2022: Waco UPF-7 (N32141), Erwinna, PA, substantial damage. Probable cause: The inability of both pilots to see and avoid the collision. Contributing to the accident was the pilot of the red airplane’s decision to utilize the converging runway for takeoff, contrary to the…
- [NTSB CEN22LA003](https://openairdocs.org/ntsb/CEN22LA003), Oct 2, 2021: Boeing PT-17 (N4106Y), Winnie, TX, substantial damage. Probable cause: The pilot’s decision to takeoff from a road with obstacles in his flight path and his failure to maintain control of the airplane when encountering changing winds from approaching thunderstorms which…
- [NTSB GAA21WA168](https://openairdocs.org/ntsb/GAA21WA168), Jul 4, 2021: Boeing A75N1(PT17) (N429AB), Luneburg, Germany, substantial damage
- [NTSB CEN21LA264](https://openairdocs.org/ntsb/CEN21LA264), Jun 13, 2021: Boeing B75N1 (N777JG), Elwood, NE, substantial damage. Probable cause: The failure of the engine master rod, resulting in a total loss of engine power and a forced landing.
- [NTSB WPR21LA126](https://openairdocs.org/ntsb/WPR21LA126), Mar 7, 2021: Cessna 190 (N190RC), Camarillo, CA, substantial damage. Probable cause: The failure of the pilot to maintain directional control of the airplane during the landing roll which resulted in a runway excursion and subsequent nose over.
- [NTSB WPR20LA309](https://openairdocs.org/ntsb/WPR20LA309), Sep 11, 2020: Bird CK (N933V), Enterprise, OR, substantial damage. Probable cause: The pilot’s failure to maintain directional control during landing, which resulted in a runway excursion and collision with terrain.
- [NTSB CEN20LA383](https://openairdocs.org/ntsb/CEN20LA383), Sep 5, 2020: Stearman A75N1(PT17) (N373VU), Henderson, TX, substantial damage. Probable cause: The pilot’s failure to maintain proper airspeed, resulting in an aerodynamic stall after takeoff.
- [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 ERA20CA175](https://openairdocs.org/ntsb/ERA20CA175), May 3, 2020: Waco QCF (N11457), Shirley, NY, substantial damage. Probable cause: The pilot's failure to maintain control of the airplane during the landing roll, which resulted in a nose over.
- [NTSB CEN19LA158](https://openairdocs.org/ntsb/CEN19LA158), May 29, 2019: Boeing B75N1 (N60955), Fredericksburg, TX, substantial damage. Probable cause: The loss of engine power for undetermined reasons.
- [NTSB WPR19LA125](https://openairdocs.org/ntsb/WPR19LA125), Apr 28, 2019: Stearman A75N1(PT17) (N68825), Sequim, WA, substantial damage. Probable cause: The total loss of engine power due to the fatigue failure of the crankshaft.
- [NTSB GAA18CA417](https://openairdocs.org/ntsb/GAA18CA417), Jun 30, 2018: Travel Air 2000 (N8870), Shelter Island, NY, substantial damage. Probable cause: The pilot's failure to maintain clearance from a tree during taxi.
- [NTSB ERA18TA179](https://openairdocs.org/ntsb/ERA18TA179), Jun 25, 2018: Stearman B75 (N52584), Lexington, NC, substantial damage. Probable cause: The pilot’s overapplication of the wheel brakes during landing, which resulted in a nose-over.
- [NTSB GAA18CA354](https://openairdocs.org/ntsb/GAA18CA354), Jun 15, 2018: Boeing B75 (N52107), Waukegan, IL, substantial damage. Probable cause: The flight instructor’s improper landing flare, which resulted in a bounced landing and subsequent loss of directional control.
- [NTSB GAA18CA286](https://openairdocs.org/ntsb/GAA18CA286), May 16, 2018: Boeing A75N1(PT17) (N63794), Eden Prairie, MN, substantial damage. Probable cause: The pilot’s failure to maintain directional control during landing in crosswind conditions.
- [NTSB GAA18CA079](https://openairdocs.org/ntsb/GAA18CA079), Dec 3, 2017: Boeing A75N1(PT17) (N1431C), Chino, CA, substantial damage. Probable cause: The pilot’s failure to maintain directional control during a touch-and-go landing.
- [NTSB GAA18CA050](https://openairdocs.org/ntsb/GAA18CA050), Nov 19, 2017: Boeing A75N1(PT17) (N69656), Rosamond, CA, substantial damage. Probable cause: The pilot’s failure to maintain directional control during the landing roll.
- [NTSB WPR17LA197](https://openairdocs.org/ntsb/WPR17LA197), Sep 4, 2017: Boeing A75N1(PT17) (N75753), Santa Paula, CA, substantial damage. Probable cause: A partial loss of engine power during initial climb for reasons that could not be determined based on the available information.
- [NTSB GAA17CA524](https://openairdocs.org/ntsb/GAA17CA524), Sep 3, 2017: Boeing A75N1(PT17) (N52813), Oshkosh, WI, substantial damage. Probable cause: The pilot’s overapplication of the brakes, which resulted in the biplane coming to rest inverted.
- [NTSB ERA17LA249](https://openairdocs.org/ntsb/ERA17LA249), Jul 19, 2017: Grumman G 164 (N691Y), Marydel, DE, substantial damage. Probable cause: The pilot's failure to maintain adequate clearance from power lines while conducting an aerial application flight.
- [NTSB ERA17LA253](https://openairdocs.org/ntsb/ERA17LA253), Jul 3, 2017: Waco UPF 7 (N134Q), Brunswick, GA, substantial damage. Probable cause: The failure of the right main landing gear strut brace for reasons that could not be determined based on the available evidence.
- [NTSB GAA17CA290](https://openairdocs.org/ntsb/GAA17CA290), May 4, 2017: Cessna 190 (N4498C), Prescott, AZ, substantial damage. Probable cause: The pilot’s use of excessive speed during a right turn from the runway to the taxiway, which resulted in a loss of directional control.
- [NTSB GAA16CA467](https://openairdocs.org/ntsb/GAA16CA467), Sep 5, 2016: Boeing A75N1(PT17) (N52236), Atlanta, TX, substantial damage. Probable cause: The pilot's failure to attain the proper touchdown point on a grass airstrip and the airplane's subsequent collision with trees during an attempted aborted landing.
- [NTSB WPR16LA106](https://openairdocs.org/ntsb/WPR16LA106), May 12, 2016: Boeing B75N1 (N56200), Winslow, AZ, substantial damage. Probable cause: The partial loss of engine power during takeoff initial climb in high-density altitude conditions for reasons that could not be determined because a postaccident examination of the airplane and…
- [NTSB CEN16LA177](https://openairdocs.org/ntsb/CEN16LA177), Apr 28, 2016: Boeing A75N1 (PT17) (N17PY), Osage City, KS, substantial damage. Probable cause: A partial loss of engine power for reasons that could not be determined based on the available information.
- [NTSB GAA16CA206](https://openairdocs.org/ntsb/GAA16CA206), Apr 3, 2016: Boeing A75N1(PT17) (N501TT), Spring, TX, substantial damage. Probable cause: The pilot's failure to maintain directional control during the landing roll, resulting in a runway excursion and substantial damage to the lower left wing spar.
- [NTSB WPR16LA078](https://openairdocs.org/ntsb/WPR16LA078), Mar 2, 2016: Boeing A75N1(PT17) (N63555), Palm Springs, CA, substantial damage. Probable cause: Improper assembly of a fuel hose, which restricted the fuel supply to the carburetor and resulted in a loss of engine power during the initial climb after takeoff.
- [NTSB GAA16CA049](https://openairdocs.org/ntsb/GAA16CA049), Nov 14, 2015: Curtiss Wright Travel Air (N9872), Carlsbad, CA, substantial damage. Probable cause: The pilot's failure to maintain directional control during the landing roll, resulting in a ground-loop, and substantial damage to the right wing and wing strut.
- [NTSB GAA15CA205](https://openairdocs.org/ntsb/GAA15CA205), Jul 25, 2015: Boeing B75N1 (N5820V), Shelter Island, NY, substantial damage. Probable cause: The pilot's failure to maintain pitch control during the landing roll, resulting in a nose over.
- [NTSB CEN15LA294](https://openairdocs.org/ntsb/CEN15LA294), Jul 2, 2015: Boeing A75N1 (PT17) (N44SN), Louisburg, KS, substantial damage. Probable cause: A partial loss of engine power for reasons that could not be determined during postaccident examinations.
- [NTSB CEN15LA295](https://openairdocs.org/ntsb/CEN15LA295), Jun 3, 2015: Waco UPF 7 (N29943), Montrose, CO, substantial damage. Probable cause: The pilot's failure to attain suitable altitude while flying over high mountainous terrain in downdraft conditions.
- [NTSB GAA15CA082](https://openairdocs.org/ntsb/GAA15CA082), May 20, 2015: Boeing PT 17 (N55528), Williamson, GA, substantial damage. Probable cause: The pilot landed off the right side of the runway resulting in a collision with terrain.
- [NTSB ERA15CA162](https://openairdocs.org/ntsb/ERA15CA162), Mar 12, 2015: Boeing A75N1(PT17) (N7772J), St Marys, PA, substantial damage. Probable cause: The pilot's failure to maintain directional control while landing in a gusty crosswind, which resulted in a runway excursion and a nose over.
- [NTSB WPR14LA361](https://openairdocs.org/ntsb/WPR14LA361), Aug 30, 2014: Travel Air C 4000 (N9952), Williams, CA, substantial damage. Probable cause: The failure of the elevator control tube due to corrosion, which resulted in a loss of elevator control and collision with terrain.

All 603: https://openairdocs.org/engine/continental-w670-series/ntsb.md

## FAA accident and incident reports (543, 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 20250907012609A](https://openairdocs.org/incident/20250907012609A), Sep 7, 2025: Boeing E75 (N75675), Benton, KS, Substantial damage. On September 7, 2025, at Lloyd Stearman Field (1K1) while on approach to land a Boeing E75 Stearman struck a car on the approach end of approximately 50 feet…
- [Accident 20250615007499A](https://openairdocs.org/incident/20250615007499A), Jun 15, 2025: Boeing B75N1 (N6848), Spokane, WA, Substantial damage. Pilot attempted to take off from runway 16. After accelorating down the runway approxanatly 1000 feet the aircraft could not lift off due inpart to density of…
- [Incident 20250524006489I](https://openairdocs.org/incident/20250524006489I), May 24, 2025: Boeing E75 (N1068N), Hayden, ID, Minor damage. Pilot stated, " I was landing stearman [privacy data omitted] on runway 2. On short final I asked the tower for a wind check. The tower replied, “wind calm.” I…
- [Accident 20250328006369A](https://openairdocs.org/incident/20250328006369A), Mar 28, 2025: Boeing A75N1(PT17) (N65011), Fort Myers, FL, Substantial damage. Made a normal 3 point landing. As aircraft slowed, the right wing came up and the stearman began to weather vane to the right. As it did, the left wing…
- [Incident 20241106019179I](https://openairdocs.org/incident/20241106019179I), Nov 6, 2024: Waco UPF-7 (N32071), Bethany, OK, Minor damage. On 11/06/2024 the aircraft experanced a ground loop on landing. The aircraft traveled in excess of 360 degree and exited the runway to the left then hit a…
- [Accident 20241021022209A](https://openairdocs.org/incident/20241021022209A), Oct 21, 2024: Boeing A75N1(PT17) (N62394), Denton, TX, Substantial damage. Aircraft experianced a rough running engine just after take-off from runway 18L. The engine shut off for approximately 1 second and began to run again roughly.…
- [Accident 20241004022079A](https://openairdocs.org/incident/20241004022079A), Oct 4, 2024: Boeing E75 (N1612M), Sanger, TX, Substantial damage. On October 4, 2024, at approximately 1300 central daylight time, a Boeing E75, [privacy data omitted], was taking off from Bar V K Airport(T38) headed to…
- [Incident 20240712020729I](https://openairdocs.org/incident/20240712020729I), Jul 12, 2024: Boeing A75N1(PT17) (N302DR), Pensacola, FL, Minor damage. Pilot states he had a small quartering tailwind. Aircraft bounced once and once back on the ground, the landing gear came in contact with the edge of runway,…
- [Accident 20240517006999A](https://openairdocs.org/incident/20240517006999A), May 17, 2024: Cessna 190 (N1500D), San Luis Obispo, CA, Substantial damage. On landing at the San Luis Obispo county airport, after touching down approximately 1000 feet down the runway, the aircraft tracked straight for approximately…
- [Accident 20240224020099A](https://openairdocs.org/incident/20240224020099A), Feb 24, 2024: Waco UPF-7 (N30169), Atlanta, GA, Substantial damage. The pilot in command had flown three (3) uneventul laps making full stop taxi-backs on runway 34, VFR at kpdk prior to the accident. The tower report for…
- [Incident 20231007016039I](https://openairdocs.org/incident/20231007016039I), Oct 7, 2023: Boeing A75N1(PT17) (N69QB), Madera, CA, Minor damage. On October 7th, 2023, the operator landed on the grass parallel to runway 12 at Madera Municipal Airport (mae). The aircraft lost directional control and…
- [Incident 20231002016439I](https://openairdocs.org/incident/20231002016439I), Oct 2, 2023: Boeing A75N1(PT17) (N68480), Missoula, MT, Minor damage. PIC stated he did a full preflight and that the flight was normal, with a normal entry into a left downwind for runway 30. Base and final resulted in a stable…
- [Incident 20230918011302I](https://openairdocs.org/incident/20230918011302I), Sep 18, 2023: Waco GXE (N312DC), Sevierville, TN, Minor damage. On September 18th, at 17:09 EST, the PIC of an airplane conducting a local air tour operation taxiied from the ramp to an area the PIC conducted his runups.…
- [Accident 20230820014519A](https://openairdocs.org/incident/20230820014519A), Aug 20, 2023: Waco UPF-7 (N39721), Warrenton, VA, Substantial damage. On 8/20/2023 around 7:30 pm [privacy data omitted] was conducting an air tour ride. After take off the ground crews noticed the right gear was hanging out of…
- [Incident 20230413004839I](https://openairdocs.org/incident/20230413004839I), Apr 13, 2023: Boeing A75N1(PT17) (N50142), Evansville, IN, Minor damage. On 04/13/2023,the aircraft was on a landing roll-out and entered a ground loop. The aircraft exited the runway and the right aileron was damaged.
- [Accident 20221015017619A](https://openairdocs.org/incident/20221015017619A), Oct 15, 2022: Boeing A75N1(PT17) (N42PT), Petaluma, CA, Substantial damage. Pilot statement: during the landing flare on RWY11 a gust a wind lifted the tail and the airplane spun 180*. Departed rwy hit burm and aircraft flipped over on…
- [Accident 20220824015049A](https://openairdocs.org/incident/20220824015049A), Aug 24, 2022: Boeing B75N1 (N66417), Harvard, IL, Substantial damage. On August 24, 2022, [privacy data omitted]was the pilot in command (PIC) of[privacy data omitted] during a touch and go landing on runway 27 at dacy airport,…
- [Accident 20220820020162A](https://openairdocs.org/incident/20220820020162A), Aug 20, 2022: Boeing A75N1(PT17) (N52652), Bealton, VA, Substantial damage. Investigation. The pilot of landing airplane completed a passenger ride, finishing up at around 1,500 ft AGL near the airport. He checked the pattern for other…
- [Accident 20220820020112A](https://openairdocs.org/incident/20220820020112A), Aug 20, 2022: Boeing A75N1(PT17) (N55267), Bealton, VA, Substantial damage. Investigation. Landing airplane completed a passenger ride, finishing up at around 1,500 ft AGL near the airport. He checked the pattern for other aircraft…
- [Accident 20220806020321A](https://openairdocs.org/incident/20220806020321A), Aug 6, 2022: Waco UPF-7 (N32141), Erwinna, PA, Substantial damage. This accident was due to a ground collision between two aircraft. The pilot of the pitts, (report AEA0522020) stated that he made a radio call that he was…
- [Incident 20220702011639I](https://openairdocs.org/incident/20220702011639I), Jul 2, 2022: Boeing A75N1(PT17) (N4997V), Oshkosh, WI, Minor damage. Pilot landed aircraft and on roll out, the left wheel assembly broke apart. This caused the tire innertube to deflate and the left lower wing tip and aileron…
- [Incident 20220701011589I](https://openairdocs.org/incident/20220701011589I), Jul 1, 2022: Waco ASO (N768K), Richland, WA, Minor damage. Pilot stated on landing the right brake had little or no braking action and began to swerve back and forth and was unable to maintain directional control…
- [Accident 20211002016619A](https://openairdocs.org/incident/20211002016619A), Oct 2, 2021: Boeing PT-17 (N4106Y), Winnie, TX, Substantial damage. The PIC influenced by the encroachment of approaching thunder storms, a field, normally utilized for this event, was flooded, and the possibility of damage to…
- [Incident 20210723013339I](https://openairdocs.org/incident/20210723013339I), Jul 23, 2021: Boeing A75N1(PT17) (N61603), Oshkosh, WI, Minor damage. Aircraft landed at Oshkosh, WI on 7/24/2021 during the [privacy data omitted] 2021 event. After touchdown and initial rollout, the aircraft nosed over and came…
- [Accident 20210613009539A](https://openairdocs.org/incident/20210613009539A), Jun 13, 2021: Boeing B75N1 (N777JG), Elwood, NE, Substantial damage. Approximately 50 minutes into the flight the pilot reported there was a loud bang followed by severe engine vibration. The pilot throttled back and the…
- [Incident 20210428007369I](https://openairdocs.org/incident/20210428007369I), Apr 28, 2021: Curtiss Wright TRAVEL AIR 4000 (N8700), Torrance, Minor damage. Description of incident as reported by toa ATCT: on April 28, 2021 travelaire N8700 piloted by private pilot [privacy data omitted], landed on runway 29R at…
- [Incident 20210313005669I](https://openairdocs.org/incident/20210313005669I), Mar 13, 2021: Curtiss Wright TRAVEL AIR 4000 (N8700), Torrance, CA, Minor damage. N8700 landed rwy 29L and was attempting to exit the rwy at taxiway foxtrot when the aircraft started an uncontrolled left turn. The aircraft came to a stop…
- [Accident 20210307010329A](https://openairdocs.org/incident/20210307010329A), Mar 7, 2021: Cessna 190 (N190RC), Camarillo, CA, Substantial damage. Pilots were cleared to land at cma, runway 26. Instructor on right seat, instructed PIC to attemp a 3 point landing at which time they touched down. Aircraft…
- [Accident 20200910014359A](https://openairdocs.org/incident/20200910014359A), Sep 10, 2020: Bird CK (N933V), Enterprise, OR, Substantial damage. Pilot added power to straighten out the aircraft due to not being aligned with the center line of the runway. Adding power caused the engine to sputter and…
- [Accident 20200905012739A](https://openairdocs.org/incident/20200905012739A), Sep 5, 2020: Boeing A75N1(PT17) (N373VU), Henderson, TX, Substantial damage. On September 5, 2020, at about 1430 CST, N373VU, a Boeing stearman A75N1 (PT17), was involved in an accident in which the aircraft was substantially damaged.…
- [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…
- [Incident 20200725011341I](https://openairdocs.org/incident/20200725011341I), Jul 25, 2020: Boeing A75L3 (N52512), Aiken, SC, Minor damage. Airman beginning an air tour flight began taxi and collided with a parked aircraft on ramp
- [Accident 20200503001049A](https://openairdocs.org/incident/20200503001049A), May 3, 2020: Waco QCF (N11457), Shirley, NY, Substantial damage. 15:50 EDT aircraft N11457 lands khwv. Pilot reports executing a full stall 3 point landing on runway 24 right grass , pilot states he then applied light…
- [Incident 20190730017609I](https://openairdocs.org/incident/20190730017609I), Jul 30, 2019: Boeing A75L3 (N54671), Tulsa, OK, Minor damage. Pilot was landing 1R at rvs. The crosswind was pretty stiff and he said the plane just got away from him a little causing a ground loop.
- [Incident 20190718012049I](https://openairdocs.org/incident/20190718012049I), Jul 18, 2019: Boeing A75N1(PT17) (N373VU), Paris, TX, Minor damage. The incident pilot was flying his aircraft in the traffic pattern around the Paris, Texas airport (prx) when he experience an engine failure. The pilot elected…
- [Incident 20190619007539I](https://openairdocs.org/incident/20190619007539I), Jun 19, 2019: Boeing PT-13D (N1702B), El Cajon, CA, Minor damage. VFR landing at gillespie, El Cajon, California. Cleared to land on 27R. During rollout aircraft began to drift to the right, applied right rudder. Right tail…
- [Accident 20190529017299A](https://openairdocs.org/incident/20190529017299A), May 29, 2019: Boeing B75N1 (N60955), Fredricksburg, TX, Substantial damage. Pilot made a VFR flight from llano, Texas (kaqo) direct to his ranch grass landing strip just outside of Fredricksburg, Texas. It was a 20-25 minute flight and…
- [Accident 20190428003559A](https://openairdocs.org/incident/20190428003559A), Apr 28, 2019: Boeing A75N1(PT17) (N68825), Port Discovery, WA, Substantial damage. On climbout, the engine began to leak oil as noted by the occupants. PIC turned aircraft around to return to airport. Engine began to shake violently until it…
- [Accident 20180630008929A](https://openairdocs.org/incident/20180630008929A), Jun 30, 2018: Travel Air Mfg Co 2000 (N8870), Shelter Island, NY, Substantial damage. Airman landed his aircraft to the south and continued his landing roll out further south than usual due to an aircraft landing behind him. He taxied the…
- [Accident 20180625013659A](https://openairdocs.org/incident/20180625013659A), Jun 25, 2018: Boeing B75N1 (N52584), Lexington, NC, Substantial damage. On second landing, (wheel landing) the aircraft tracked straight until the tail wheel touched the ground and the plane started tracking to the right of the…
- [Incident 20180616015549I](https://openairdocs.org/incident/20180616015549I), Jun 16, 2018: Waco UPF-7 (N134Q), St Simons Islan, GA, Minor damage. On June 16, 2018 at 11:00 a.m., the pilot of N134Q was taxing his 1940 Waco UPF-7 through the parking ramp at (kssi) mckinnon airport on st. Simons island,…
- [Accident 20180615007949A](https://openairdocs.org/incident/20180615007949A), Jun 15, 2018: Boeing B75N1 (N52107), Waukegan, IL, Substantial damage. Pilot departed rwy 23 for an instructional flight. Intercom and radio failed during flight. Pilot returned to airport and received a green light from the…
- [Accident 20180516005469A](https://openairdocs.org/incident/20180516005469A), May 16, 2018: Boeing A75N1(PT17) (N63794), Eden Prairie, MN, Substantial damage. [privacy data omitted] Had control of aircraft during entire flight. First landing resulted in a group loop and caused substantial damage to aircraft.
- [Incident 20180121001079I](https://openairdocs.org/incident/20180121001079I), Jan 21, 2018: Boeing A75N1(PT17) (N53459), Riverside, CA, Minor damage. Narrative: On January 21, 2018 1525 PST time, N53459 a Boeing PT17 stearman on the fourth landing went into a ground loop at ral (Riverside Airport) scrapping…
- [Accident 20171203023519A](https://openairdocs.org/incident/20171203023519A), Dec 3, 2017: Boeing A75N1(PT17) (N1431C), Chino, CA, Substantial damage. On December 03/ 2017 N1431C was cleared for the option for landing on runway 26R cno (Chino) airport and went off the runway into a ground loop. There was no…
- [Accident 20171119019199A](https://openairdocs.org/incident/20171119019199A), Nov 19, 2017: Boeing A75N1(PT17) (N69656), Rosamond, CA, Substantial damage. The pilot and passenger departed in N69656 at Rosamond sky park for a local flight. 15 minutes later they returned to the airport. During rollout the aircraft…
- [Accident 20170904011639A](https://openairdocs.org/incident/20170904011639A), Sep 4, 2017: Boeing A75N1(PT17) (N75753), Santa Paula, CA, Substantial damage. N75753 was on its fourth sightseeing flight of the day. During takeoff climb out from Santa Paula Airport (kszp), Santa Paula, CA, the pilot of N75753 noted…
- [Accident 20170903017569A](https://openairdocs.org/incident/20170903017569A), Sep 3, 2017: Boeing A75N1(PT17) (N52813), Oshkosh, WI, Substantial damage. On September 3, 2017, at 1609 CST, N52813 registered as a Boeing A75N1 (PT17) airplane piloted by a commercial pilot, was damaged when landing at Pioneer…
- [Accident 20170719010739A](https://openairdocs.org/incident/20170719010739A), Jul 19, 2017: Grumman G-164 (N691Y), Marydel, DE, Destroyed. The aircraft was completing the first pass of third flight, appeared to be at a normal speed and altitude for a standard spraying pass when it struck power…
- [Accident 20170703008839A](https://openairdocs.org/incident/20170703008839A), Jul 3, 2017: Waco UPF-7 (N134Q), St. Simons, GA, Substantial damage. On July 3rd at approximately 4:30PM EST. Pilot was taxing to runway 35 at St. Simons airport (kssi), with passengers on board for a sight seeing flight in Waco…

All 543: https://openairdocs.org/engine/continental-w670-series/incidents.md

## Service difficulty reports (8)

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

- [SDR 2015FA0000555](https://openairdocs.org/sdr/2015FA0000555), Sep 15, 2015: LOCK NUT. BROKEN. ON REMOVING THE REAR CASE OF THIS ENGINE, FOUND Y BROKEN .3125 LOCK NUTS. ALSO FOUND 3 BROKEN NUTS ON THE OIL PUMP WHICH IS ATTACHED TOTHE REAR CASE SOME OF THO
- [SDR 2009FA0000905](https://openairdocs.org/sdr/2009FA0000905), Aug 10, 2009: SHOE. INOPERATIVE. ON ROLL-OUT PORTION OF LANDING LT BRAKE STARTED TO DRAG AND RESULTED IN PARKING THE ACFT OFF TO THE LT SIDE OF RUNWAY 33 AT THE AIRPORT. BRAKE WAS RELEASED BY S
- [SDR TIPR200705001](https://openairdocs.org/sdr/TIPR200705001), Jul 11, 2007: STRINGER. CORRODED. DEFECT CORROSION ALONG STRINGER 38L, BS 412 TO 434 UNDER DOME SEALANT. SPLICED IN STRINGER SECTION IAW SRM.
- [SDR 2004FA0000454](https://openairdocs.org/sdr/2004FA0000454), May 25, 2004: HINGE BRACKET. CORRODED. INSPECTED ORIGINAL MAGNESIUM IB AILERON HINGE BRACKETS AND FOUND SOME OR ALL OF THE FOLLOWING CONDITIONS: SEVERELY CORRODED BRACKET BODY AROUND MOUNT AND BEARIN
- [SDR 2004FA0000459](https://openairdocs.org/sdr/2004FA0000459), May 25, 2004: HINGE BRACKET. CORRODED. INSPECTED ORIGINAL MAGNESIUM IB AILERON HINGE BRACKETS AND FOUND SOME OR ALL OF THE FOLLOWING CONDITIONS: SEVERELY CORRODED BRACKET BODY AROUND MOUNT AND BEARIN
- [SDR 2004FA0000462](https://openairdocs.org/sdr/2004FA0000462), May 25, 2004: HINGE BRACKET. CORRODED. INSPECTED ORIGINAL MAGNESIUM IB AILERON HINGE BRACKETS AND FOUND SOME OR ALL OF THE FOLLOWING CONDITIONS: SEVERELY CORRODED BRACKET BODY AROUND MOUNT AND BEARIN
- [SDR RAQ2003F00000](https://openairdocs.org/sdr/RAQ2003F00000), Jan 3, 2003: BEARING. FAILED. REAR MAIN BEARING FAILED IN ENGINE BY THE BEARING CAGES DISINTEGRATE. UPON DISASSEMBLY IT WAS FOUND THAT THE BEARING, ONE IGNITION GEAR, AND THE GENERATOR DRIVE
- [SDR DEM2002F00009](https://openairdocs.org/sdr/DEM2002F00009), Jun 1, 2002: HINGE BRACKET. CRACKED. FOUND BOTH INBOARD AILERON HINGE BRACKETS CRACKED COMPLETELY THROUGH THE BEARING BOSS.

## STCs that may be installed (OpenAirDocs) (19)

Approved for this engine 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 SE04651CH](https://openairdocs.org/stc/SE04651CH): To allow use of l00R grade aviation fuel meeting Swift Fuel, LLC specification SPEC-l00R-22. Swift Fuels LLC. Lists W670-16
- [STC SE01966WI](https://openairdocs.org/stc/SE01966WI): Use of GAMI G100UL High Octane Unleaded Avgas in spark ignition piston aircraft engines. General Aviation Modifications Inc. Lists W670-16
- [STC SE8776SW](https://openairdocs.org/stc/SE8776SW): Installation of coated cylinders and piston rings. Continental Motors, Inc
- [STC SE7492SW](https://openairdocs.org/stc/SE7492SW): Install Delco starter P/N 1108684 or Eclipse/Bendix Utica model E80 starters. Rare Aircraft Ltd. Lists W670-16
- [STC SE04136AT](https://openairdocs.org/stc/SE04136AT): Installation of Bendix Scintilla WL-7A Battery Ignition Timer (distributor) modified from a breaker points and condenser design to a Hall Effect electronic sensor design. Air Repair Inc. Lists W670-23
- [STC SE00809WI](https://openairdocs.org/stc/SE00809WI): Installation of a modified alternate source of supply, engine ignition coil assembly and condenser. Air Repair Inc. Lists W670-23
- [STC SE01652WI](https://openairdocs.org/stc/SE01652WI): Modification of engine to replace contact points and condenser controlled Bendix Scintilla WL-7A battery timer (distributor) with an electronically controlled WL-7A-M battery timer. Radial Engines Ltd. Lists W670-23
- [STC SE01144SE](https://openairdocs.org/stc/SE01144SE): Installation of Olde Thyme Aviation, Inc. pistons, P/N OTA-4032-T6 or Air Repair, Inc. pistons, P/Ns AR4177 (5 each) and AR4177-1 (2 each), to replace Teledyne Continental Motors pistons P/N 4177. Air Repair Inc. Lists W670-16
- [STC SE01243WI](https://openairdocs.org/stc/SE01243WI): Installation of Barron Aviation intake tube drain kits on the engines listed on the attached FAA Approved Model List (AML) No. SE01243WI, dated April 26, 2004, or later FAA Approved revision. Barron Aviation. Lists W670-16
- [STC SE01145SE](https://openairdocs.org/stc/SE01145SE): Option 1) Installation of Olde Thyme Aviation Inc. crankshaft bearings OTA-21201-AB (rear) and OTA-21301-FB (front) Option 2) Installation of Olde Thyme Aviation Inc. replacement intake valve guides P/N OTA-20241-IG Option 3) Installation of Olde Thyme Aviation Inc. replacement exhaust valve guides P/N OTA-20406-EG. Air Repair Inc. Lists W670-16
- [STC SE01146SE](https://openairdocs.org/stc/SE01146SE): Option 1) Installation of Gold Coast Aviation crankshaft bearings GCA-21201-AB (rear) and GCA-21301-FB (front) Option 2) Installation of Gold Coast Aviation replacement intake valve guides P/N GCA-20241-IG Option 3) Installation of Gold Coast Aviation replacement exhaust valve guides P/N GCA-20406-EG. Gold Coast Aviation Service Inc. Lists W670-16
- [STC SE00946LA](https://openairdocs.org/stc/SE00946LA): Installation of engine crankshaft front and rear bearings. Holloway Engineering Co. Lists W670-6A
- [STC SE00372LA](https://openairdocs.org/stc/SE00372LA): Installation of a Jacobs shielded ignition harness on Teledyne Continental Motors engine models. Aero Engines Inc. Lists W670-16
- [STC SE7491SW](https://openairdocs.org/stc/SE7491SW): Install Scintilla VNM-7DFA magnetos on W-670-6A and -6N engines. Air Repair
- [STC SE5879SW](https://openairdocs.org/stc/SE5879SW): Use of Phillips X/C II 20W-50 and25W-60 oil (OSS 55875) in all Avco reciprocating aircraft engines from 65 to 450 BHP. Phillips Petroleum Co
- [STC SE4127SW](https://openairdocs.org/stc/SE4127SW): Install modified W-670-23 piston, P/N 4180, to replace W-670-6A piston, P/N 4177. Air Repair. Lists W670-6A
- [STC SE2028CE](https://openairdocs.org/stc/SE2028CE): Add the following approved fuel: unleaded automotive gasoline, 87 minimum antiknock index, and leaded automotive gasoline, 88 minimum antiknock index(RON+MON)/2. Intermixing with aviation gasoline also approved. Petersen Aviation Inc
- [STC SE5WE](https://openairdocs.org/stc/SE5WE): Compression ratio tank pistons. Salinas Engine Works. Lists W670-24
- [STC SE03079AT](https://openairdocs.org/stc/SE03079AT) (historical): Modify the Teledyne Continental W670 Series aircraft engines by replacing the crankshaft front and rear main ball bearings with higher capacity roller bearings. Air Repair Inc. Lists W670-16

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