# Jacobs R755B series - Type: Engine model (FAA registry) - Registry code: 35007 - Manufacturer (registry): JACOBS - Model: R755B SERIES - Engine type: Reciprocating - Power: 275 hp - Data sheet: [TCDS E-237](https://openairdocs.org/tcds/E-237) (OpenAirDocs) - Holder: Air Repair Inc. - Installed in: 210 registered aircraft - Page: https://openairdocs.org/engine/jacobs-r755b-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. None matched. ## Registered aircraft (210, first 50) - [N100GJ](https://openairdocs.org/aircraft/N100GJ): [Edminston Brandon L](https://openairdocs.org/faa-owner/EDMINSTON%20BRANDON%20L), [Murray, KY](https://openairdocs.org/faa-place/KY/Murray), built 1995, S/N F5C-065 - [N110AS](https://openairdocs.org/aircraft/N110AS): [Green Wagon Sales And Holding LLC](https://openairdocs.org/faa-owner/GREEN%20WAGON%20SALES%20AND%20HOLDING%20LLC), [Casper, WY](https://openairdocs.org/faa-place/WY/Casper), built 2005, S/N F5C110 - [N1132Z](https://openairdocs.org/aircraft/N1132Z): [Lucci Giacinto A](https://openairdocs.org/faa-owner/LUCCI%20GIACINTO%20A), [Nashville, MI](https://openairdocs.org/faa-place/MI/Nashville), S/N 10 - [N11R](https://openairdocs.org/aircraft/N11R): [Sager Timothy P](https://openairdocs.org/faa-owner/SAGER%20TIMOTHY%20P), [Tullahoma, TN](https://openairdocs.org/faa-place/TN/Tullahoma), built 1952, S/N 7765 - [N13WH](https://openairdocs.org/aircraft/N13WH): [Lonon Michael E](https://openairdocs.org/faa-owner/LONON%20MICHAEL%20E), [Yuba City, CA](https://openairdocs.org/faa-place/CA/Yuba%20City), built 1988, S/N F5-013 - [N14071](https://openairdocs.org/aircraft/N14071): [Van Surdam John R](https://openairdocs.org/faa-owner/VAN%20SURDAM%20JOHN%20R), [Seneca, SC](https://openairdocs.org/faa-place/SC/Seneca), built 1934, S/N 3992 - [N14073](https://openairdocs.org/aircraft/N14073): [Reifel Saundra J](https://openairdocs.org/faa-owner/REIFEL%20SAUNDRA%20J), [Black Diamond, WA](https://openairdocs.org/faa-place/WA/Black%20Diamond), built 1934, S/N 3990 - [N14081](https://openairdocs.org/aircraft/N14081): [Mills Charles K](https://openairdocs.org/faa-owner/MILLS%20CHARLES%20K), [Hernando, FL](https://openairdocs.org/faa-place/FL/Hernando), built 1987, S/N F5-009 - [N14770](https://openairdocs.org/aircraft/N14770): [Vintage Tailwheel LLC](https://openairdocs.org/faa-owner/VINTAGE%20TAILWHEEL%20LLC), [Ocala, FL](https://openairdocs.org/faa-place/FL/Ocala), built 1991, S/N F5C043 - [N1577D](https://openairdocs.org/aircraft/N1577D): [Wilson Travis](https://openairdocs.org/faa-owner/WILSON%20TRAVIS), [Oswego, KS](https://openairdocs.org/faa-place/KS/Oswego), S/N 7799 - [N1586D](https://openairdocs.org/aircraft/N1586D): [Zucchero David M](https://openairdocs.org/faa-owner/ZUCCHERO%20DAVID%20M), [Stanwood, WA](https://openairdocs.org/faa-place/WA/Stanwood), built 1952, S/N 7869 - [N1591D](https://openairdocs.org/aircraft/N1591D): [Brewer George F II](https://openairdocs.org/faa-owner/BREWER%20GEORGE%20F%20II), [Colorado Springs, CO](https://openairdocs.org/faa-place/CO/Colorado%20Springs), built 1952, S/N 7874 - [N166VN](https://openairdocs.org/aircraft/N166VN): [Lower Columbia River Company LLC](https://openairdocs.org/faa-owner/LOWER%20COLUMBIA%20RIVER%20COMPANY%20LLC), [Longview, WA](https://openairdocs.org/faa-place/WA/Longview), built 1950, S/N 7588 - [N16BP](https://openairdocs.org/aircraft/N16BP): [N16bp LLC](https://openairdocs.org/faa-owner/N16BP%20LLC), [Mesa, AZ](https://openairdocs.org/faa-place/AZ/Mesa), built 1942, S/N 75-4350 - [N17710](https://openairdocs.org/aircraft/N17710): [Sydal Zpf LLC](https://openairdocs.org/faa-owner/SYDAL%20ZPF%20LLC), [Jackson, LA](https://openairdocs.org/faa-place/LA/Jackson), built 1937, S/N 4650 - [N1935B](https://openairdocs.org/aircraft/N1935B): [Krushnir Borys G](https://openairdocs.org/faa-owner/KRUSHNIR%20BORYS%20G), [Tamuning, GU](https://openairdocs.org/faa-place/GU/Tamuning), built 1985, S/N F5-001 - [N1950C](https://openairdocs.org/aircraft/N1950C): [Tupelo Aeronautics Inc](https://openairdocs.org/faa-owner/TUPELO%20AERONAUTICS%20INC), [Tupelo, MS](https://openairdocs.org/faa-place/MS/Tupelo), built 1954, S/N 16183 - [N195BA](https://openairdocs.org/aircraft/N195BA): [Butterfly Aviation Inc](https://openairdocs.org/faa-owner/BUTTERFLY%20AVIATION%20INC), [Goodland, KS](https://openairdocs.org/faa-place/KS/Goodland), built 1953, S/N 16069 - [N195BT](https://openairdocs.org/aircraft/N195BT): [Perlman Nathaniel H](https://openairdocs.org/faa-owner/PERLMAN%20NATHANIEL%20H), [Kirkland, WA](https://openairdocs.org/faa-place/WA/Kirkland), built 1955, S/N 16176 - [N195BV](https://openairdocs.org/aircraft/N195BV): [Air Logistics Group LLC](https://openairdocs.org/faa-owner/AIR%20LOGISTICS%20GROUP%20LLC), [Winston Salem, NC](https://openairdocs.org/faa-place/NC/Winston%20Salem), built 1953, S/N 16057 - [N195CC](https://openairdocs.org/aircraft/N195CC): [Mcguire Michael D](https://openairdocs.org/faa-owner/MCGUIRE%20MICHAEL%20D), [Lake Stevens, WA](https://openairdocs.org/faa-place/WA/Lake%20Stevens), built 1953, S/N 16093 - [N195CG](https://openairdocs.org/aircraft/N195CG): [Lake City Aero Ltd LLC](https://openairdocs.org/faa-owner/LAKE%20CITY%20AERO%20LTD%20LLC), [Grenada, MS](https://openairdocs.org/faa-place/MS/Grenada), built 1953, S/N 16120 - [N195CN](https://openairdocs.org/aircraft/N195CN): [Noslen Enterprises](https://openairdocs.org/faa-owner/NOSLEN%20ENTERPRISES), [Goodland, KS](https://openairdocs.org/faa-place/KS/Goodland), built 1954, S/N 16163 - [N195DP](https://openairdocs.org/aircraft/N195DP): [Philyaw David Arthur](https://openairdocs.org/faa-owner/PHILYAW%20DAVID%20ARTHUR), [Saint James, MO](https://openairdocs.org/faa-place/MO/Saint%20James), S/N 16149 - [N195DZ](https://openairdocs.org/aircraft/N195DZ): [Kozura Bret T](https://openairdocs.org/faa-owner/KOZURA%20BRET%20T), [Wellsville, PA](https://openairdocs.org/faa-place/PA/Wellsville), built 1953, S/N 16077 - [N195GT](https://openairdocs.org/aircraft/N195GT): [Trebon Gregory L](https://openairdocs.org/faa-owner/TREBON%20GREGORY%20L), [Port Orange, FL](https://openairdocs.org/faa-place/FL/Port%20Orange), S/N 16055 - [N195GW](https://openairdocs.org/aircraft/N195GW): [Rising Jonathan D](https://openairdocs.org/faa-owner/RISING%20JONATHAN%20D), [Ocala, FL](https://openairdocs.org/faa-place/FL/Ocala), built 1949, S/N 7455 - [N195J](https://openairdocs.org/aircraft/N195J): [Gores Thomas J](https://openairdocs.org/faa-owner/GORES%20THOMAS%20J), [Franklin, WI](https://openairdocs.org/faa-place/WI/Franklin), built 1954, S/N 16123 - [N195JA](https://openairdocs.org/aircraft/N195JA): [R H K Of Kansas Inc](https://openairdocs.org/faa-owner/R%20H%20K%20OF%20KANSAS%20INC), [Overland Park, KS](https://openairdocs.org/faa-place/KS/Overland%20Park), built 1950, S/N 7504 - [N195JF](https://openairdocs.org/aircraft/N195JF): [Dark Ark Enterprises LLC](https://openairdocs.org/faa-owner/DARK%20ARK%20ENTERPRISES%20LLC), [Bentonville, AR](https://openairdocs.org/faa-place/AR/Bentonville), built 1950, S/N 7576 - [N195JW](https://openairdocs.org/aircraft/N195JW): [Froes Jonathan C](https://openairdocs.org/faa-owner/FROES%20JONATHAN%20C), [Little Elm, TX](https://openairdocs.org/faa-place/TX/Little%20Elm), built 1953, S/N 16094 - [N195K](https://openairdocs.org/aircraft/N195K): [Plymate Jeffrey L](https://openairdocs.org/faa-owner/PLYMATE%20JEFFREY%20L), [Sandy, OR](https://openairdocs.org/faa-place/OR/Sandy), S/N 7867 - [N195KB](https://openairdocs.org/aircraft/N195KB): [Hubner Leigh Andrew](https://openairdocs.org/faa-owner/HUBNER%20LEIGH%20ANDREW), [Locust Grove, GA](https://openairdocs.org/faa-place/GA/Locust%20Grove), built 1952, S/N 7949 - [N195MK](https://openairdocs.org/aircraft/N195MK): [Scholten Calvin B](https://openairdocs.org/faa-owner/SCHOLTEN%20CALVIN%20B), [Lakeland, TN](https://openairdocs.org/faa-place/TN/Lakeland), built 1952, S/N 7907 - [N195MS](https://openairdocs.org/aircraft/N195MS): [Mccombs Dale A](https://openairdocs.org/faa-owner/MCCOMBS%20DALE%20A), [Midlothian, TX](https://openairdocs.org/faa-place/TX/Midlothian), built 1952, S/N 7994 - [N195PK](https://openairdocs.org/aircraft/N195PK): [Kourtis Vintage Aviation LLC](https://openairdocs.org/faa-owner/KOURTIS%20VINTAGE%20AVIATION%20LLC), [Owasso, OK](https://openairdocs.org/faa-place/OK/Owasso), built 1951, S/N 7712 - [N195PR](https://openairdocs.org/aircraft/N195PR): [Rg Aviation Inc](https://openairdocs.org/faa-owner/RG%20AVIATION%20INC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 1952, S/N 7871 - [N195RA](https://openairdocs.org/aircraft/N195RA): [Jaeb Gerald E](https://openairdocs.org/faa-owner/JAEB%20GERALD%20E), [Yankeetown, FL](https://openairdocs.org/faa-place/FL/Yankeetown), S/N 16099 - [N195RC](https://openairdocs.org/aircraft/N195RC): [Duke Kay L](https://openairdocs.org/faa-owner/DUKE%20KAY%20L), [Darrouzett, TX](https://openairdocs.org/faa-place/TX/Darrouzett), built 1953, S/N 16102 - [N195RE](https://openairdocs.org/aircraft/N195RE): [Ramey Robert L](https://openairdocs.org/faa-owner/RAMEY%20ROBERT%20L), [Rose Hill, KS](https://openairdocs.org/faa-place/KS/Rose%20Hill), built 1952, S/N 7934 - [N195RW](https://openairdocs.org/aircraft/N195RW): [White Michael D Trustee](https://openairdocs.org/faa-owner/WHITE%20MICHAEL%20D%20TRUSTEE), [Willow Springs, MO](https://openairdocs.org/faa-place/MO/Willow%20Springs), built 1948, S/N 7088 - [N195S](https://openairdocs.org/aircraft/N195S): [Freedom Leasing Ent Inc](https://openairdocs.org/faa-owner/FREEDOM%20LEASING%20ENT%20INC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 1952, S/N 7924 - [N195TW](https://openairdocs.org/aircraft/N195TW): [Henkemeyer Joseph](https://openairdocs.org/faa-owner/HENKEMEYER%20JOSEPH), [Cave Creek, AZ](https://openairdocs.org/faa-place/AZ/Cave%20Creek), built 1952, S/N 7981 - [N195U](https://openairdocs.org/aircraft/N195U): [Dowd Darin R](https://openairdocs.org/faa-owner/DOWD%20DARIN%20R), [Frisco, TX](https://openairdocs.org/faa-place/TX/Frisco), built 1951, S/N 7705 - [N195WS](https://openairdocs.org/aircraft/N195WS): [Saloga William A Trustee](https://openairdocs.org/faa-owner/SALOGA%20WILLIAM%20A%20TRUSTEE), [Batavia, IL](https://openairdocs.org/faa-place/IL/Batavia), built 1952, S/N 7908 - [N195WT](https://openairdocs.org/aircraft/N195WT): [Rowe James D](https://openairdocs.org/faa-owner/ROWE%20JAMES%20D), [Nome, AK](https://openairdocs.org/faa-place/AK/Nome), built 1954, S/N 16128 - [N195X](https://openairdocs.org/aircraft/N195X): [Businessliner 190 Express LLC](https://openairdocs.org/faa-owner/BUSINESSLINER%20190%20EXPRESS%20LLC), [Rogers, MN](https://openairdocs.org/faa-place/MN/Rogers), built 1949, S/N 7464 - [N1960C](https://openairdocs.org/aircraft/N1960C): [Senger Bruce D](https://openairdocs.org/faa-owner/SENGER%20BRUCE%20D), [Mount Solon, VA](https://openairdocs.org/faa-place/VA/Mount%20Solon), built 1952, S/N 7919 - [N196RB](https://openairdocs.org/aircraft/N196RB): [Snap N Roll Ltd](https://openairdocs.org/faa-owner/SNAP%20N%20ROLL%20LTD), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 1996, S/N F5C-071 - [N207RM](https://openairdocs.org/aircraft/N207RM): [3g Classic Aviation Inc](https://openairdocs.org/faa-owner/3G%20CLASSIC%20AVIATION%20INC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 1940, S/N 75294 All 210: https://openairdocs.org/engine/jacobs-r755b-series/aircraft.md ## NTSB investigations (134, 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 CEN26LA145](https://openairdocs.org/ntsb/CEN26LA145), Mar 24, 2026: Classic Waco YMF (N43000), Galveston, TX, substantial damage. Probable cause: The biplane pilot’s failure to maintain an adequate visual lookout while taxiing, which included the failure to perform S-turns to compensate for limited forward visibility. - [NTSB ERA25LA295](https://openairdocs.org/ntsb/ERA25LA295), Aug 8, 2025: Cessna 195 (N1950C), Memphis, TN, substantial damage. Probable cause: Failure of the left main landing gear due to the loss of the protective paint coating and a change in the local surface finish from impermissible grinding, which resulted in fatigue cracking. - [NTSB WPR24LA125](https://openairdocs.org/ntsb/WPR24LA125), Apr 8, 2024: Cessna 195B (N2147C), Portales, NM, substantial damage. Probable cause: The pilot’s decision to take off with a quartering tailwind and his subsequent failure to maintain directional control. Contributing to the accident was the pilot’s improper elevator control inputs… - [NTSB WPR23LA337](https://openairdocs.org/ntsb/WPR23LA337), Aug 25, 2023: Cessna 195B (N2192C), Los Lunas, NM, substantial damage. Probable cause: The pilot’s failure to secure the seat’s position in the seat rail, which resulted in a loss of directional control and nose over. - [NTSB CEN19LA204](https://openairdocs.org/ntsb/CEN19LA204), Jun 22, 2019: Waco YMF-5C (N63WC), Bar Harbor, ME, substantial damage. Probable cause: A total loss of engine power due to a cylinder failure for undetermined reasons. - [NTSB GAA18CA434](https://openairdocs.org/ntsb/GAA18CA434), Jul 9, 2018: Classic Waco (N96T), North Myrtle Beach, SC, substantial damage. Probable cause: The pilot's failure to maintain directional control during landing in a left quartering headwind. - [NTSB GAA17CA415](https://openairdocs.org/ntsb/GAA17CA415), Jul 17, 2017: Cessna 195 (N4432C), Leavenworth, KS, substantial damage. Probable cause: The pilot’s inadvertent toe brake application during the landing roll, which resulted in a runway excursion and a ground loop. - [NTSB CEN17LA032](https://openairdocs.org/ntsb/CEN17LA032), Oct 25, 2016: Boeing A75N1 (PT17) (N48182), Ingleside, TX, substantial damage. Probable cause: The pilot's failure to maintain proper yaw and roll control during takeoff, which resulted in excessive adverse yaw upon liftoff. - [NTSB GAA16CA422](https://openairdocs.org/ntsb/GAA16CA422), Aug 6, 2016: Cessna 195 (N4026A), Hillsborough, OR, substantial damage. Probable cause: The pilot's failure to attain a proper touchdown point and loss of directional control and her subsequent excessive brake application, which resulted in a nose-over. - [NTSB GAA16CA089](https://openairdocs.org/ntsb/GAA16CA089), Dec 25, 2015: Waco YMF (N99Y), Fullerton, CA, substantial damage. Probable cause: The pilot's failure to maintain directional control during the landing roll. - [NTSB ERA14CA097](https://openairdocs.org/ntsb/ERA14CA097), Jan 19, 2014: Cessna 195B (N1960C), Winchester, VA, substantial damage. Probable cause: The pilot's attempt to avoid a deer on the runway, which resulted in loss of aircraft control, a runway excursion, and collision with a runway sign. - [NTSB ERA14CA012](https://openairdocs.org/ntsb/ERA14CA012), Oct 15, 2013: Classic Waco YMF (N62XX), Somerville, NJ, substantial damage. Probable cause: The pilot's failure to maintain aircraft control while applying wheel brakes during landing roll resulting in the airplane nosing over. - [NTSB WPR13CA232](https://openairdocs.org/ntsb/WPR13CA232), May 16, 2013: Cessna 195A (N4026A), San Carlos, CA, substantial damage. Probable cause: The pilot’s failure to maintain directional control during the landing roll. - [NTSB CEN13LA243](https://openairdocs.org/ntsb/CEN13LA243), Apr 28, 2013: Cessna 195B (N4420C), Albuquerque, NM, substantial damage. Probable cause: The pilot’s failure to maintain directional control during the landing roll. - [NTSB CEN12CA450](https://openairdocs.org/ntsb/CEN12CA450), Jul 14, 2012: Cessna 195B (N3092B), Camdenton, MO, substantial damage. Probable cause: The pilot's loss of directional control on landing, which resulted in a runway excursion. - [NTSB ERA12CA408](https://openairdocs.org/ntsb/ERA12CA408), Jun 19, 2012: Cessna 195B (N4418C), Millington, TN, substantial damage. Probable cause: The pilot's failure to maintain directional control during the landing roll. - [NTSB ERA12LA126](https://openairdocs.org/ntsb/ERA12LA126), Dec 26, 2011: Classic Waco YMF5 (N64JE), Marathon, FL, substantial damage. Probable cause: The pilot did not ensure that there was sufficient fuel aboard the airplane before initiating the flight, which resulted in temporary fuel starvation and an interruption in engine power during… - [NTSB ANC11WA028](https://openairdocs.org/ntsb/ANC11WA028), Apr 28, 2011: Cessna 195A (N41X), Campbell River, Canada, destroyed, 1 fatal - [NTSB WPR10CA101](https://openairdocs.org/ntsb/WPR10CA101), Jan 7, 2010: Cessna 195B (N2171C), Palm Springs, CA, substantial damage. Probable cause: The pilot's improper use of brakes during landing. - [NTSB ERA10CA076](https://openairdocs.org/ntsb/ERA10CA076), Nov 16, 2009: Classic Waco YMF (N89B), Dunnellon, FL, substantial damage. Probable cause: The certified flight instructor’s delayed response to the student pilot's loss of directional control while landing, which resulted in a ground-loop. Contributing to the accident was the student… - [NTSB ATL07CA114](https://openairdocs.org/ntsb/ATL07CA114), Aug 14, 2007: Waco Classic YMF-5 (N801TS), Nantucket, MA, substantial damage. Probable cause: The pilot's failure to maintain control of the airplane during takeoff roll, which resulted in an on ground collision with an airport sign. - [NTSB SEA07CA230](https://openairdocs.org/ntsb/SEA07CA230), Aug 12, 2007: Cessna 195 (N1031D), San Diego, CA, substantial damage. Probable cause: The pilot's inadequate compensation for a wind gust that ballooned the airplane during the landing flare, which resulted in a hard landing. A contributing factor was the wind gust. - [NTSB LAX07CA124](https://openairdocs.org/ntsb/LAX07CA124), Apr 4, 2007: Waco Classic YMF-F5C (N35MM), Stuart, FL, substantial damage. Probable cause: The pilot's failure to maintain directional control during takeoff. - [NTSB LAX06CA195](https://openairdocs.org/ntsb/LAX06CA195), May 30, 2006: Waco Classic YMF 5C (N515TT), Holbrook, AZ, substantial damage. Probable cause: the pilot's inadequate compensation for the crosswind condition and failure to maintain directional control of the airplane during landing, which resulted in a ground loop. - [NTSB LAX06CA078](https://openairdocs.org/ntsb/LAX06CA078), Dec 28, 2005: Waco YMF-5C (N572TB), Lihue, HI, substantial damage. Probable cause: the pilot's inadequate compensation for the crosswind condition and failure to maintain directional control of the aircraft on landing. - [NTSB NYC06CA001](https://openairdocs.org/ntsb/NYC06CA001), Oct 2, 2005: Waco YMF (N89B), Kensington, NH, substantial damage. Probable cause: An overload fracture of the right main landing gear during the landing roll, which resulted in a nose over. - [NTSB LAX05LA186](https://openairdocs.org/ntsb/LAX05LA186), May 22, 2005: Classic Waco YMF-5 (N181AS), Santa Barbara, CA, substantial damage. Probable cause: a loss of engine power due to carburetor ice aggravated by the poor operating condition of the magnetos and the improper magneto-to-engine timing. - [NTSB LAX05CA052](https://openairdocs.org/ntsb/LAX05CA052), Dec 13, 2004: Classic Waco YMF (N95JD), Santa Barbara, CA, substantial damage. Probable cause: The pilot's inadequate compensation for the wind conditions and failure to maintain directional control during landing rollout, which resulted in a ground loop. - [NTSB LAX05LA002](https://openairdocs.org/ntsb/LAX05LA002), Oct 2, 2004: Classic Waco YMF (N43064), Sedona, AZ, substantial damage. Probable cause: a loss of engine power due to the fatigue fracture of the number 7 cylinder exhaust rocker arm as a result of a grinding operation during manufacture. - [NTSB NYC04CA190](https://openairdocs.org/ntsb/NYC04CA190), Aug 9, 2004: Classic Waco YMF (N723SR), Bar Harbor, ME, substantial damage. Probable cause: The pilot's inadequate compensation for wind conditions. A factor was the crosswind. - [NTSB CHI04CA179](https://openairdocs.org/ntsb/CHI04CA179), Jul 5, 2004: Waco YMF-FSC (N620CR), Lansing, IL, substantial damage. Probable cause: The pilot's inadequate compensation for wind conditions and his failure to maintain directional control. The crosswind and the ditch were contributing factors. - [NTSB MIA04CA034](https://openairdocs.org/ntsb/MIA04CA034), Dec 17, 2003: Waco 4MF 5 (N64JE), Marathon, FL, substantial damage. Probable cause: The pilot's loss of directional control during landing rollout in a crosswind resulting in the airplane ground looping and incurring damage to the left wing. - [NTSB ANC04LA004](https://openairdocs.org/ntsb/ANC04LA004), Oct 17, 2003: Cessna 195B (N3050B), North Pole, AK, substantial damage. Probable cause: A fracture of the left brake master cylinder actuator rod, which resulted in failure of the left brake, a loss of directional control and an inadvertent ground loop during landing, and the separation… - [NTSB CHI02LA242](https://openairdocs.org/ntsb/CHI02LA242), Aug 10, 2002: Rare Waco T-10 (N98TW), Omaha, NE, substantial damage. Probable cause: The partial loss of engine power due to fuel starvation as a result of a restricted fuel line, and the unsuitable terrain for landing encountered by the pilot. A contributing factor was the bean… - [NTSB LAX02LA035](https://openairdocs.org/ntsb/LAX02LA035), Dec 1, 2001: Classic Waco YMF (N31BN), Banning, CA, substantial damage. Probable cause: a loss of engine power due to a crack in the carburetor float and leaking portions of the carburetor that resulted in an overly rich mixture. - [NTSB CHI01LA260](https://openairdocs.org/ntsb/CHI01LA260), Aug 4, 2001: Hauck Moffra P-13 (N6408W), Linden, IN, substantial damage. Probable cause: the loss of engine power due to carburetor ice. Contributing to the accident was the rough/uneven terrain condition encountered during the landing. - [NTSB FTW01LA105](https://openairdocs.org/ntsb/FTW01LA105), Apr 1, 2001: Cessna 195B (N195S), Conroe, TX, substantial damage. Probable cause: the pilot's failure to compensate for the wind conditions during takeoff, which resulted in a ground loop. - [NTSB CHI99LA199](https://openairdocs.org/ntsb/CHI99LA199), Jun 26, 1999: Boeing Stearman B75N1 (N2PP), Kalamazoo, MI, substantial damage. Probable cause: The pilot's failure to maintain directional control of the airplane during landing. A factor was the variable wind condition. - [NTSB FTW99LA156](https://openairdocs.org/ntsb/FTW99LA156), May 31, 1999: Cessna 195 (N2151C), Conroe, TX, substantial damage. Probable cause: The fatigue fracture of the left main landing gear spring at the clamping mechanism, as a result of fretting. - [NTSB MIA99LA117](https://openairdocs.org/ntsb/MIA99LA117), Apr 2, 1999: Waco YMF-5 (N820MM), Boca Raton, FL, substantial damage. Probable cause: The pilot's failure to select a suitable forced landing site following a partial loss of engine power due to failed cylinder holdddown studs, and the subsequent collision with trees. A factor in the… - [NTSB ATL98LA101](https://openairdocs.org/ntsb/ATL98LA101), Aug 6, 1998: Waco WMF (N723SR), Chamblee, GA, substantial damage. Probable cause: The pilot's excessive taxi speed and excessive braking action that resulted in a nose over. - [NTSB CHI98LA249](https://openairdocs.org/ntsb/CHI98LA249), Jul 14, 1998: Cessna 190 (N56W), Pontiac, MI, substantial damage. Probable cause: improper procedures used during the replacement of the landing gear which resulted in pitting and corrosion of the gear spring. - [NTSB CHI98LA192](https://openairdocs.org/ntsb/CHI98LA192), Jun 6, 1998: Grumman G164 (N710Y), Somonauk, IL, substantial damage. Probable cause: the pilot's misjudgment of distance. Factors were wind gusts and crops. - [NTSB LAX98LA165](https://openairdocs.org/ntsb/LAX98LA165), May 19, 1998: Waco YMF (N43064), Sedona, AZ, minor damage. Probable cause: The failure of the pilot to secure the ignition system and magnetos in the off position before asking the ground crewman to rotate the propeller. - [NTSB LAX98LA069](https://openairdocs.org/ntsb/LAX98LA069), Jan 12, 1998: Cessna 195A (N1073D), Tucson, AZ, substantial damage. Probable cause: The student's inadequate compensation for the wind conditions and his failure to maintain directional control. Factors in this accident were the inadequate supervision of the flight by the flight… - [NTSB LAX97LA261](https://openairdocs.org/ntsb/LAX97LA261), Jul 26, 1997: Classic Waco YMF (N369BP), Sedona, AZ, substantial damage. Probable cause: A partial loss of engine power due to a loose rocker arm adjustment nut on the number 6 cylinder. The loose adjustment nut was due to inadequate maintenance adjustment performed by the engine… - [NTSB CHI97LA170](https://openairdocs.org/ntsb/CHI97LA170), Jun 14, 1997: Waco YMF (N820MM), Longville, MN, substantial damage. Probable cause: failure of the pilot to maintain directional control of the airplane. Factors relating to the accident were: the gusty wind condition and the ditch. - [NTSB NYC97LA110](https://openairdocs.org/ntsb/NYC97LA110), Jun 8, 1997: Waco YMF (N34SK), Ocean City, MD, substantial damage. Probable cause: The pilot's failure to maintain directional control and his improper compensation for the wind conditions. Contributing factors were the lack of recent experience in the airplane, and gusty wind… - [NTSB ATL97LA017](https://openairdocs.org/ntsb/ATL97LA017), Oct 24, 1996: Waco YMF5 (N723SR), Punta Gorda, FL, substantial damage. Probable cause: the pilot's improper flare during touchdown. - [NTSB LAX96LA092](https://openairdocs.org/ntsb/LAX96LA092), Dec 29, 1995: Classic Waco YMF (N40115), Kailua Kona, HI, substantial damage. Probable cause: The failure of the Waco pilot to see and avoid the opposite direction Cessna 172 while both aircraft were taxiing in a non-movement area of the airport. Factors in the accident were: the congested… All 134: https://openairdocs.org/engine/jacobs-r755b-series/ntsb.md ## FAA accident and incident reports (151, 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. - [Incident 20260324002642I](https://openairdocs.org/incident/20260324002642I), Mar 24, 2026: Classic Aircraft Corp WACO YMF (N43000), Galveston, TX, Minor damage. At approximately 10:40AM, the pilot and lone occupant of the #1 aircraft was returning from a short flight and landed on runway 18, and exited at taxiway… - [Accident 20250808011619A](https://openairdocs.org/incident/20250808011619A), Aug 8, 2025: Cessna 195B (N1950C), Memphis, TN, Substantial damage. Memphis, TN (mem): [privacy data omitted], C195, experienced a gear collapse after landing runway 18L and became disabled on the runway. No injuries and no… - [Incident 20250319001689I](https://openairdocs.org/incident/20250319001689I), Mar 19, 2025: Boeing B75N1 (N64650), Spokane, WA, Minor damage. During landing the pilot corrected to line up with runway centerline resulting in a nose over during landing. Classified as an occurrence by NTSB [privacy data… - [Incident 20241026015199I](https://openairdocs.org/incident/20241026015199I), Oct 26, 2024: Waco UPF-7 (N30146), Merritt Island, FL, Minor damage. On 10/26/2024 a Waco UPF-7 was returning from a flight when, while parking, the aircraft struck a vehicle that was not authorized to be on the airfield on the… - [Accident 20240408007729A](https://openairdocs.org/incident/20240408007729A), Apr 8, 2024: Cessna 195B (N2147C), Portales, NM, Substantial damage. On April 8, 2024, at 17:15 CDT, a Cessna 195B attempting to takeoff impacted terrain shortly after becoming airborne and incurred substantial damage. The… - [Accident 20230825018289A](https://openairdocs.org/incident/20230825018289A), Aug 25, 2023: Cessna 195B (N2192C), Los Lunas, NM, Substantial damage. On August 25, 2023, at approximately 1009MDT a Cessna 195B, single engine airplane, N2192C, [privacy data omitted], was involved in an accident. Upon the… - [Incident 20201209019219I](https://openairdocs.org/incident/20201209019219I), Dec 9, 2020: Cessna 195B (N4427C), Opa Locka, FL, Minor damage. The pilot upon the landing roll out on runway 27R encountered a strong crosswind gust which caused the pilot to lose control of the aircraft. The aircraft came… - [Incident 20200630011709I](https://openairdocs.org/incident/20200630011709I), Jun 30, 2020: Waco Classic Aircraft YMF-F5C (N7006V), Manteo, NC, Minor damage. During the takeoff roll the PIC reported that the aircraft initiated a hard turn to the left. The PIC was able to keep the aircraft from ground looping but did… - [Accident 20190622007799A](https://openairdocs.org/incident/20190622007799A), Jun 22, 2019: Waco YMF (N63WC), Bar Harbor, ME, Substantial damage. Approximately 15 minutes into the flight, at 1900 feet MSL, the pilot and both passengers heard a loud bang followed by the engine quitting. The pilot… - [Incident 20181213025089I](https://openairdocs.org/incident/20181213025089I), Dec 13, 2018: Cessna 195B (N3005B), West Chicago, IL, Substantial damage. The pilot stated that the brakes may have overheated during taxi due to high crosswinds. Pilot stated that, at approximately 1345 CST, during take off on… - [Accident 20180709015909A](https://openairdocs.org/incident/20180709015909A), Jul 9, 2018: Classic Aircraft Corp WACO YMF (N96T), North Myrtle Be, SC, Substantial damage. On July 9, 2018 at 1150 am, west columbia FSDO SO-13, received notification of an accident at airport kcre that involved aircraft registration number N96T. The… - [Incident 20180705025009I](https://openairdocs.org/incident/20180705025009I), Jul 5, 2018: Waco Classic Aircraft YMF-F5C (N7006V), Manteo, NC, Minor damage. Pilot briefed her 2 passengers, who would be sitting in the front seat, on the importance of remaining clear of the flight controls. She completed a flight… - [Incident 20180629008859I](https://openairdocs.org/incident/20180629008859I), Jun 29, 2018: Classic Aircraft Corp WACO YMF (N196RB), Waterford Twp, MI, Minor damage. On June 29, 2018 aircraft N196RB upon landing on runway 27L bounced and veered left. The pilot while attempting to regain control of the aircraft struck a… - [Incident 20180501004419I](https://openairdocs.org/incident/20180501004419I), May 1, 2018: Cessna 195B (N88DL), Chesterfield, MO, Minor damage. While attempting to land in a crosswind, on landing rollout aircraft left wing began to lift, pilot could not keep aircraft from eventually ground looping and… - [Accident 20170717015449A](https://openairdocs.org/incident/20170717015449A), Jul 17, 2017: Cessna 195B (N4432C), Leavenworth, KS, Substantial damage. The aircraft departed goodland, KS (gld) with Leavenworth, KS (flv) as the final destination. During landing on runway 16, the tail wheel touched down and the… - [Incident 20170602013149I](https://openairdocs.org/incident/20170602013149I), Jun 2, 2017: Waco YMF (N63WC), Bar Harbor, ME, Minor damage. It was the second flight of the day. One passenger on board. Pilot was landing runway 22 at bhb, the winds were variable between 240 and 270 between 5 and 7… - [Accident 20161025017089A](https://openairdocs.org/incident/20161025017089A), Oct 25, 2016: Boeing A75N1(PT17) (N48182), Ingleside, TX, Substantial damage. Aircraft had been flying for about an hour before the accident occurred. During takeoff, the airplane was traveling about 45 mph, the pilot pushed the stick… - [Accident 20160806014039A](https://openairdocs.org/incident/20160806014039A), Aug 6, 2016: Cessna 195A (N4026A), Hillsboro, OR, Substantial damage. The pilot in command allowed the Cessna 195 airplane to drift left of centerline during approach and touchdown to runway 02 at starks Twin Oaks airpark. During… - [Incident 20160413002859I](https://openairdocs.org/incident/20160413002859I), Apr 13, 2016: Cessna 195 (N195CG), Grenada, MS, Minor damage. Left hand main landing gear broke at the fuselage attach point on landing roll out. - [Accident 20151225023259A](https://openairdocs.org/incident/20151225023259A), Dec 25, 2015: Waco YMF (N99Y), Fullerton, CA, Substantial damage. After touchdown and during rollout after a normal approach to runway 24 at Fullerton airport in gusty wind conditions, the aircraft, N99Y, entered a ground… - [Incident 20150416004269I](https://openairdocs.org/incident/20150416004269I), Apr 16, 2015: Cessna 195B (N3050B), Grand Island, NE, Minor damage. N3050B, a Cessna 195B, landed at central Nebraska regional airport (gri) on runway 35. During the landing rollout, the aircraft did a ground loop, contacting… - [Incident 20140622008729I](https://openairdocs.org/incident/20140622008729I), Jun 22, 2014: Classic Aircraft Corp WACO YMF (N14770), Franklin, IN, Minor damage. According to the pilot, the aircraft was turned from base leg to final approach and was descending normally to the displaced touchdown zone. The pilot,… - [Accident 20140119000149A](https://openairdocs.org/incident/20140119000149A), Jan 19, 2014: Cessna 195B (N1960C), Winchester, VA, Substantial damage. The pilot reported that following an uneventful downwind, base and final approach, he landed the aircraft runway 14. Both main landing gear wheels were in… - [Accident 20131015021959A](https://openairdocs.org/incident/20131015021959A), Oct 15, 2013: Classic Aircraft Corp WACO YMF (N62XX), Somerville, NJ, Substantial damage. Aircraft landed on runway 26 which is a grass runway. The pilot applied aircraft brakes and aircraft nosed over and landed on top wing and tail. - [Accident 20130515024829A](https://openairdocs.org/incident/20130515024829A), May 15, 2013: Cessna 195A (N4026A), San Carlos, CA, Substantial damage. The aircraft ground looped after landing, the left landing gear failed (broke off), the left wing struck the ground. - [Accident 20130428006089A](https://openairdocs.org/incident/20130428006089A), Apr 28, 2013: Cessna 195B (N4420C), Albuquerque, NM, Substantial damage. On April 28, 2013, at approximately 0930 MDT, N4420C, a CE-195 during landing rollout lost control, ground looping and departed the left side of runway 22 at… - [Incident 20120930022419I](https://openairdocs.org/incident/20120930022419I), Sep 30, 2012: Boeing E75 (N4798V), Chino, CA, No damage. On 10/01/2012, N4798V was landing at cno airport. Upon landing the aircraft left the runway into the grass and then returned to the runway resulting in no… - [Accident 20120714014069A](https://openairdocs.org/incident/20120714014069A), Jul 14, 2012: Cessna 195B (N3092B), Camdenton, MO, Substantial damage. The local flight concluded with a series of 4 touch-and-go landings. The pilot in command [privacy data omitted] during the final landing on rwy 15 at H21, the… - [Accident 20120619012749A](https://openairdocs.org/incident/20120619012749A), Jun 19, 2012: Cessna 195B (N4418C), Millington, TN, Substantial damage. On June 19, 2012, at approximately 1000L, N4418C was on approach to knqa, Millington, TN. The winds were reported variable at 6 knots. Pilot stated that, prior… - [Incident 20120130000519I](https://openairdocs.org/incident/20120130000519I), Jan 30, 2012: Classic Aircraft Corp WACO YMF (N789WC), Naples, FL, Minor damage. This is airmans second time hitting a wing tip on the pavement. During this incident there were crosswinds from 4-8 knots gusting. The airman was doing airport… - [Accident 20111226030249A](https://openairdocs.org/incident/20111226030249A), Dec 26, 2011: Classic Aircraft Corp WACO YMF (N64JE), Marathon, FL, Destroyed. According to the pilot the aircraft had an uncontrolled power reduction during cruise flight. Pilot opted to make emergency landing in the ocean. - [Incident 20111021026029I](https://openairdocs.org/incident/20111021026029I), Oct 21, 2011: Classic Aircraft Corp WACO YMF (N789WC), Chattanooga, TN, Minor damage. The aircraft landed normally. On landing roll out, the aircraft veered to the left and ran off the runway into the grass. The aircraft continued, under its own… - [Incident 20110419005789I](https://openairdocs.org/incident/20110419005789I), Apr 19, 2011: Classic Aircraft Corp WACO YMF (N64JE), Marathon, FL, Minor damage. While making an approach into mth, the aircraft struck a tree before landing on rwy 7. The aircraft landed safely and taxied to the hangar. - [Incident 20100919047079I](https://openairdocs.org/incident/20100919047079I), Sep 19, 2010: Classic Air WACO YMF (N14081), Sparta, MI, Minor damage. Pilot stated that he landed on NE side of the Sparta airport. Upon landing plane began ocilating and porposing. Airplane impacted runway sign on left side of… - [Incident 20100126027009I](https://openairdocs.org/incident/20100126027009I), Jan 26, 2010: Cessna 195B (N4418C), Meridian, MS, Minor damage. Pilot stated he made a wheel landing. After tailwheel lowered, aircraft veered to the right, he corrected and noticed he had no brakes on left side. The… - [Accident 20100107025919A](https://openairdocs.org/incident/20100107025919A), Jan 7, 2010: Cessna 195B (N2171C), Thermal, CA, Substantial damage. On landing rollout, pilot applied to much pressure to the brake pedals subsequently causing the aircraft to flip straight over its nose onto its back - [Accident 20091116053199A](https://openairdocs.org/incident/20091116053199A), Nov 16, 2009: Classic Air WACO YMF (N89B), Dunnellon, FL, Substantial damage. Aircraft departed shady airport (X49) enrout to Dunnellon airport 9X35) for landing practice. Abort first landing due to bounce second landing slight bounce… - [Accident 20070814016009A](https://openairdocs.org/incident/20070814016009A), Aug 14, 2007: Waco YMF (N801TS), Nantucket, MA, Substantial damage. (-23) During take-off roll, aircraft veered off the right side of runway 15 on Nantucket airport, Nantucket, MA at 1616 EDT, 8/14/07. Aircraft struck the 3000… - [Accident 20070812017059A](https://openairdocs.org/incident/20070812017059A), Aug 12, 2007: Cessna 195 (N1031D), San Diego/El C, CA, Substantial damage. (-23) On August 12, 2007, Cessna N1031D a Cessna model 195 aircraft departed ely Nevada (kely) direct Gillespie Field, el cajon CA (ksee). The pilot states… - [Accident 20070405005729A](https://openairdocs.org/incident/20070405005729A), Apr 5, 2007: Waco YMFF5C (N35MM), Stuart, FL, Substantial damage. (-23) On take off runway 30 aircraft began to veer to right. Pilot overcorrected and ground looped the aircraft. The aircraft nosed over striking the prop and… - [Accident 20060530013559A](https://openairdocs.org/incident/20060530013559A), May 30, 2006: Waco YMF (N515TT), Holbrook, AZ, Substantial damage. (-23) On may 30, 2006 at approximately 1630 MST, N515TT, a Waco Ymf biplane, with the pilot [privacy data omitted] performing as pilot-in-command, crashed… - [Accident 20051228030469A](https://openairdocs.org/incident/20051228030469A), Dec 28, 2005: Waco YMFF5C (N572TB), Lihue, HI, Substantial damage. (-23) On December 28, 2005, at approximately 1353 local time, on touchdown the right wing on aircraft N572TB struck the runway, the aircraft then spun 180… - [Accident 20051002026469A](https://openairdocs.org/incident/20051002026469A), Oct 2, 2005: Amtr WACOYMF (N89B), Kensington, NH, Substantial damage. (-23) On October 2, 2005, N89B experienced a separation of the r/h main wheel assy after initial touchdown at 06NH, grass strip. After bringing the aircraft… - [Accident 20050522012359A](https://openairdocs.org/incident/20050522012359A), May 22, 2005: Amtr WACOYMF (N181AS), Santa Barbara, CA, Substantial damage. (-23) On 05/22/2005 N181AS was being operated for the purpose of biplane rides to the public. During take off at 200 feet the engine failed then regained… - [Incident 20050328005719I](https://openairdocs.org/incident/20050328005719I), Mar 28, 2005: Waco YMF (N23JL), Gainesville, FL, Minor damage. (-23) After landing and during taxi wind gust lifted wing of a/c and tipped it up on its nose, destroying the propeller. - [Accident 20041213035069A](https://openairdocs.org/incident/20041213035069A), Dec 13, 2004: Amtr WACOYMF (N95JD), Santa Barbara, CA, Substantial damage. (-23) N95JD was a classic aircraft corp/waco ymf s/n F5C-058. It is a biplae and with tricyclic fixed landing gear. The commercial pilot [privacy data omitted]… - [Accident 20041002027249A](https://openairdocs.org/incident/20041002027249A), Oct 2, 2004: Amtr WACOYMF (N43064), Sedona, AZ, Substantial damage. (-23) The pilot was cruising @ 6800 ft (MSL), 800 ft (AGL) in the local Sedona, AZ area. The pilot heard a very loud "bang" from the engine followed by an… - [Accident 20040809018759A](https://openairdocs.org/incident/20040809018759A), Aug 9, 2004: Amtr WACOYMF (N723SR), Bar Harbor, ME, Substantial damage. (-23) Pilot reported that upon touchdown, a quartering gust of wind from the rear lifted the tail and flipped the aircraft over. Inspection of the aircraft… - [Accident 20040705016299A](https://openairdocs.org/incident/20040705016299A), Jul 5, 2004: Waco YMFF5C (N620CR), Chicago, IL, Substantial damage. (-23) Pilot was landing rwy 36 at Lansing Municipal Airport, Lansing, Illinois and lost directional control. The airplane departed the runway and came to rest… - [Incident 20040306004299I](https://openairdocs.org/incident/20040306004299I), Mar 6, 2004: Amtr WACOYMF (N89B), Corona, CA, Minor damage. (-23) The airman stated he initiated the flight from the flabob airport (rir) and continued to the Corona airport (ajo). As the airman approached the Corona… All 151: https://openairdocs.org/engine/jacobs-r755b-series/incidents.md ## STCs that may be installed (OpenAirDocs) (12) 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 SE4842NM](https://openairdocs.org/stc/SE4842NM): Installation of auxiliary oil sump tank. The 195 Factory LLC. Lists R-755B2 - [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 R-755B1 - [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 R-755B1 - [STC SE572SW](https://openairdocs.org/stc/SE572SW): Installation of Jacobs RAS325A exhaust valve rotocaps. Air Repair Inc. Lists R-755B1 - [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 R-755B1 - [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 R-755B2 - [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 R-755B1 - [STC SE01288WI](https://openairdocs.org/stc/SE01288WI): Modification of Engines to replace carburetor with fuel injection. Data required: (1) Butterfly Aviation Master Drawing List Report BA1001-11, dated October 28, 2004, and (2) Butterfly Aviation Instructions for Continued Airworthiness Report BA1001-8, dated October 26, 2004, or later FAA Approved revisions to (1) or (2). Radial Engines Ltd. Lists R-755B2 - [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 R-755B1 - [STC SE02589AT](https://openairdocs.org/stc/SE02589AT): Installation of Air Repair, Inc. magneto part numbers VMN7-DF5-ARMOD with automatic advance per Air Repair, Inc. Installation Instructions, document number 1200C, dated 9/5/2002 or lter FAA approved revision. The VMN7-DF5-ARMOD magnetos are obtained from Bendix VMN7-DF5 or VMN7-DFA magnetos modified per Air Repair, Inc. Service Instructions, document number 1200A dtd 9/5/02 or other FAA approved revision. Air Repair Inc. Lists R-755B2 - [STC SE2416CE](https://openairdocs.org/stc/SE2416CE): Add the following approved fuel: unleaded automotive gasoline 87 minimum antiknock index and leaded automotive index(RON+MON)/2. Petersen Aviation Inc. Lists R-755B1 - [STC SE639SW](https://openairdocs.org/stc/SE639SW): Continental W-670 link rods. Aircraft Engine Service Inc --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.