# Lycoming VO-435 series - Type: Engine model (FAA registry) - Registry code: 41525 - Manufacturer (registry): LYCOMING - Model: VO-435 SERIES - Engine type: Reciprocating - Power: 260 hp - Data sheet: [TCDS E-279](https://openairdocs.org/tcds/E-279) (OpenAirDocs) - Holder: Lycoming Engines - Installed in: 191 registered aircraft - Page: https://openairdocs.org/engine/lycoming-vo-435-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 2026-04-11](https://openairdocs.org/ad/2026-04-11): Engine (Reciprocating) · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 605 more. Effective Apr 8, 2026 - [AD 2022-16-03](https://openairdocs.org/ad/2022-16-03): Engine (RECIPROCATING) · Continental Aerospace Technologies GTSIO-520-C, GTSIO-520-D, GTSIO-520-F and 236 more. Effective Aug 15, 2022 - [AD 2012-03-07](https://openairdocs.org/ad/2012-03-07): Carburetor · Lycoming Engines GO-435, GO-435-C2 (O-435-17), GO-435-C2A and 389 more. Effective Mar 27, 2012 - [AD 2004-10-14](https://openairdocs.org/ad/2004-10-14): Crankshaft gear · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 642 more. Effective Jun 25, 2004 - [AD 90-04-06 R1](https://openairdocs.org/ad/90-04-06-R1): Propeller Governor External Oil Line · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 427 more. Effective May 28, 1991 - [AD 80-04-04 R1](https://openairdocs.org/ad/80-04-04-R1): Crankshaft Flange Bolts · Lycoming Engines IVO-540-A1A, TIVO-540-A2A, TVO-435-A1A and 38 more. Effective Aug 18, 1980 - [AD 69-24-03](https://openairdocs.org/ad/69-24-03): Carburetors · Continental Motors A-65-1, A-65-12, A-65-12F and 321 more. Effective Nov 29, 1969 - [AD 66-06-03](https://openairdocs.org/ad/66-06-03): Connecting Rod Assemblies · Lycoming Engines GO-435-C2 (O-435-17), GO-435-C2A, GO-435-C2A2 and 317 more. Effective Jan 16, 1969 - [AD 68-08-08](https://openairdocs.org/ad/68-08-08): Hydraulic Valve · Lycoming Engines IGSO-480-A1A6, IGSO-480-A1B6, IGSO-480-A1C6 and 44 more. Effective May 19, 1968 Historical (superseded or no longer in force): - [AD 2024-21-02](https://openairdocs.org/ad/2024-21-02) (historical): Engine (Reciprocating) · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 548 more. Effective Dec 5, 2024 ## Information bulletins (advisory) (2) - [SAIB NE-19-08](https://openairdocs.org/saib/NE-19-08): Reciprocating Engine Cylinder Section - Lycoming Engines Parallel Valve Cylinders. Issued May 2, 2019 - [SAIB NE-14-13](https://openairdocs.org/saib/NE-14-13): Reciprocating Engine - Cylinder Mounting Studs. Issued Mar 24, 2014 ## Registered aircraft (191, first 50) - [N10009](https://openairdocs.org/aircraft/N10009): [Hendrickson Flying Service Inc](https://openairdocs.org/faa-owner/HENDRICKSON%20FLYING%20SERVICE%20INC), [Rochelle, IL](https://openairdocs.org/faa-place/IL/Rochelle), built 1979, S/N 79-032 - [N101MF](https://openairdocs.org/aircraft/N101MF): [Usda Forest Service Fepp](https://openairdocs.org/faa-owner/USDA%20FOREST%20SERVICE%20FEPP), [Trenton, NJ](https://openairdocs.org/faa-place/NJ/Trenton), built 1957, S/N 1953 - [N1023V](https://openairdocs.org/aircraft/N1023V): [Peterson Chester L](https://openairdocs.org/faa-owner/PETERSON%20CHESTER%20L), [Willis, TX](https://openairdocs.org/faa-place/TX/Willis), S/N 2021 - [N106HH](https://openairdocs.org/aircraft/N106HH): [Haddock Flying Service Inc](https://openairdocs.org/faa-owner/HADDOCK%20FLYING%20SERVICE%20INC), [Salters, SC](https://openairdocs.org/faa-place/SC/Salters), S/N 1375 - [N10RN](https://openairdocs.org/aircraft/N10RN): [Executive Jet A LLC](https://openairdocs.org/faa-owner/EXECUTIVE%20JET%20A%20LLC), [Danbury, CT](https://openairdocs.org/faa-place/CT/Danbury), built 1948, S/N 2229 - [N11CU](https://openairdocs.org/aircraft/N11CU): [Pockrus Pat B](https://openairdocs.org/faa-owner/POCKRUS%20PAT%20B), [Mineral Wells, TX](https://openairdocs.org/faa-place/TX/Mineral%20Wells), built 1957, S/N 983 - [N1202W](https://openairdocs.org/aircraft/N1202W): [Triple F Flying Inc](https://openairdocs.org/faa-owner/TRIPLE%20F%20FLYING%20INC), [Benton, PA](https://openairdocs.org/faa-place/PA/Benton), built 1967, S/N 7857 - [N12220](https://openairdocs.org/aircraft/N12220): [Dixon Craig S](https://openairdocs.org/faa-owner/DIXON%20CRAIG%20S), [Rimrock, AZ](https://openairdocs.org/faa-place/AZ/Rimrock), built 1958, S/N 2267 - [N130V](https://openairdocs.org/aircraft/N130V): [J Bird Air Service LLC](https://openairdocs.org/faa-owner/J%20BIRD%20AIR%20SERVICE%20LLC), [Cheyenne, WY](https://openairdocs.org/faa-place/WY/Cheyenne), built 1958, S/N 2230 - [N1311X](https://openairdocs.org/aircraft/N1311X): [Brown Helicopter Inc](https://openairdocs.org/faa-owner/BROWN%20HELICOPTER%20INC), [Pensacola, FL](https://openairdocs.org/faa-place/FL/Pensacola), built 1966, S/N 7823 - [N1315X](https://openairdocs.org/aircraft/N1315X): [Ritel Copter Service Inc](https://openairdocs.org/faa-owner/RITEL%20COPTER%20SERVICE%20INC), [Hudson, IA](https://openairdocs.org/faa-place/IA/Hudson), built 1966, S/N 7816 - [N13298](https://openairdocs.org/aircraft/N13298): [Lidija LLC](https://openairdocs.org/faa-owner/LIDIJA%20LLC), [Grass Valley, CA](https://openairdocs.org/faa-place/CA/Grass%20Valley), S/N 1346 - [N1347X](https://openairdocs.org/aircraft/N1347X): [Churchill Scott W](https://openairdocs.org/faa-owner/CHURCHILL%20SCOTT%20W), [Le Sueur, MN](https://openairdocs.org/faa-place/MN/Le%20Sueur), built 1966, S/N 7829 - [N1374X](https://openairdocs.org/aircraft/N1374X): [Triple F Flying Inc](https://openairdocs.org/faa-owner/TRIPLE%20F%20FLYING%20INC), [Benton, PA](https://openairdocs.org/faa-place/PA/Benton), built 1966, S/N 7839 - [N1470W](https://openairdocs.org/aircraft/N1470W): [Smith Peter I Trustee DBA](https://openairdocs.org/faa-owner/SMITH%20PETER%20I%20TRUSTEE%20DBA), [Ocala, FL](https://openairdocs.org/faa-place/FL/Ocala), S/N 7935 - [N147SM](https://openairdocs.org/aircraft/N147SM): [Mazar Stephen M](https://openairdocs.org/faa-owner/MAZAR%20STEPHEN%20M), [Flushing, MI](https://openairdocs.org/faa-place/MI/Flushing), built 1956, S/N 1461 - [N14861](https://openairdocs.org/aircraft/N14861): [Brown Helicopter Inc](https://openairdocs.org/faa-owner/BROWN%20HELICOPTER%20INC), [Pensacola, FL](https://openairdocs.org/faa-place/FL/Pensacola), built 1972, S/N 25089 - [N1501L](https://openairdocs.org/aircraft/N1501L): [Monahan Robert J](https://openairdocs.org/faa-owner/MONAHAN%20ROBERT%20J), [Bulverde, TX](https://openairdocs.org/faa-place/TX/Bulverde), built 1971, S/N 25046 - [N15395](https://openairdocs.org/aircraft/N15395): [Magnum Aviation LLC](https://openairdocs.org/faa-owner/MAGNUM%20AVIATION%20LLC), [Goff, KS](https://openairdocs.org/faa-place/KS/Goff), S/N 2408 - [N161SH](https://openairdocs.org/aircraft/N161SH): [Churchill Dianne L](https://openairdocs.org/faa-owner/CHURCHILL%20DIANNE%20L), [Jordan, MN](https://openairdocs.org/faa-place/MN/Jordan), built 1976, S/N 1921 - [N170HF](https://openairdocs.org/aircraft/N170HF): [Efinance LLC](https://openairdocs.org/faa-owner/EFINANCE%20LLC), [Wichita, KS](https://openairdocs.org/faa-place/KS/Wichita), built 1968, S/N 3687 - [N17H](https://openairdocs.org/aircraft/N17H): [Hendrickson Flying Service Inc](https://openairdocs.org/faa-owner/HENDRICKSON%20FLYING%20SERVICE%20INC), [Rochelle, IL](https://openairdocs.org/faa-place/IL/Rochelle), built 1947, S/N 13 - [N17SS](https://openairdocs.org/aircraft/N17SS): [Dodson Larry A](https://openairdocs.org/faa-owner/DODSON%20LARRY%20A), [Lone Oak, TX](https://openairdocs.org/faa-place/TX/Lone%20Oak), built 1957, S/N 1982 - [N18807](https://openairdocs.org/aircraft/N18807): [Swing Wing Inc](https://openairdocs.org/faa-owner/SWING%20WING%20INC), [Veedersburg, IN](https://openairdocs.org/faa-place/IN/Veedersburg), built 1975, S/N YH49 - [N200KV](https://openairdocs.org/aircraft/N200KV): [Peavy Magnus Delacy IV](https://openairdocs.org/faa-owner/PEAVY%20MAGNUS%20DELACY%20IV), [Crawfordville, FL](https://openairdocs.org/faa-place/FL/Crawfordville), built 1960, S/N 2258 - [N202CH](https://openairdocs.org/aircraft/N202CH): [Bavarian Barnstormers 2 Inc](https://openairdocs.org/faa-owner/BAVARIAN%20BARNSTORMERS%202%20INC), [North Fort Myers, FL](https://openairdocs.org/faa-place/FL/North%20Fort%20Myers), built 1951, S/N 301 - [N210B](https://openairdocs.org/aircraft/N210B): [L & L Delivery Ltd](https://openairdocs.org/faa-owner/L%20%26%20L%20DELIVERY%20LTD), [Romulus, MI](https://openairdocs.org/faa-place/MI/Romulus), built 1975, S/N 76 - [N222AJ](https://openairdocs.org/aircraft/N222AJ): [Watson Tommy R](https://openairdocs.org/faa-owner/WATSON%20TOMMY%20R), [Thibodaux, LA](https://openairdocs.org/faa-place/LA/Thibodaux), built 1973, S/N 25122 - [N2248W](https://openairdocs.org/aircraft/N2248W): [Wilbur-Ellis Co](https://openairdocs.org/faa-owner/WILBUR-ELLIS%20CO), [Salinas, CA](https://openairdocs.org/faa-place/CA/Salinas), built 1969, S/N 7961 - [N2249W](https://openairdocs.org/aircraft/N2249W): [Wilbur-Ellis Co](https://openairdocs.org/faa-owner/WILBUR-ELLIS%20CO), [Salinas, CA](https://openairdocs.org/faa-place/CA/Salinas), built 1969, S/N 7963 - [N2292B](https://openairdocs.org/aircraft/N2292B): [My Way LLC](https://openairdocs.org/faa-owner/MY%20WAY%20LLC), [Missoula, MT](https://openairdocs.org/faa-place/MT/Missoula), built 1957, S/N 1972 - [N24067](https://openairdocs.org/aircraft/N24067): [Pearce Michael J](https://openairdocs.org/faa-owner/PEARCE%20MICHAEL%20J), [Phoenix, AZ](https://openairdocs.org/faa-place/AZ/Phoenix), built 1953, S/N 1220 - [N2490B](https://openairdocs.org/aircraft/N2490B): [Experimental Acft Assoc Inc](https://openairdocs.org/faa-owner/EXPERIMENTAL%20ACFT%20ASSOC%20INC), [Oshkosh, WI](https://openairdocs.org/faa-place/WI/Oshkosh), built 1956, S/N 1516 - [N25561](https://openairdocs.org/aircraft/N25561): [Hendrickson Flying Service Inc](https://openairdocs.org/faa-owner/HENDRICKSON%20FLYING%20SERVICE%20INC), [Rochelle, IL](https://openairdocs.org/faa-place/IL/Rochelle), built 1975, S/N TC-TWH-1 - [N257PC](https://openairdocs.org/aircraft/N257PC): [Pinellas County](https://openairdocs.org/faa-owner/PINELLAS%20COUNTY), [Clearwater, FL](https://openairdocs.org/faa-place/FL/Clearwater), built 1972, S/N 25077 - [N262MV](https://openairdocs.org/aircraft/N262MV): [Cavanaugh Charters Inc](https://openairdocs.org/faa-owner/CAVANAUGH%20CHARTERS%20INC), [Addison, TX](https://openairdocs.org/faa-place/TX/Addison), built 1958, S/N 2232 - [N26PE](https://openairdocs.org/aircraft/N26PE): [Mshr Helicopter Service LLC](https://openairdocs.org/faa-owner/MSHR%20HELICOPTER%20SERVICE%20LLC), [Chehalis, WA](https://openairdocs.org/faa-place/WA/Chehalis), S/N 1327 - [N2770](https://openairdocs.org/aircraft/N2770): [Lil Dawg Aviation](https://openairdocs.org/faa-owner/LIL%20DAWG%20AVIATION), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), S/N 1250 - [N2806B](https://openairdocs.org/aircraft/N2806B): [Heliflight Leasing LLC](https://openairdocs.org/faa-owner/HELIFLIGHT%20LEASING%20LLC), [Bulverde, TX](https://openairdocs.org/faa-place/TX/Bulverde), built 1956, S/N 1490 - [N2807B](https://openairdocs.org/aircraft/N2807B): [Suess Robert D](https://openairdocs.org/faa-owner/SUESS%20ROBERT%20D), [San Jose, CA](https://openairdocs.org/faa-place/CA/San%20Jose), built 1956, S/N 1495 - [N2817B](https://openairdocs.org/aircraft/N2817B): [New Air Inc](https://openairdocs.org/faa-owner/NEW%20AIR%20INC), [Pocahontas, IA](https://openairdocs.org/faa-place/IA/Pocahontas), built 1956, S/N 1500 - [N2822B](https://openairdocs.org/aircraft/N2822B): [English Air Service LLC](https://openairdocs.org/faa-owner/ENGLISH%20AIR%20SERVICE%20LLC), [Georgetown, TX](https://openairdocs.org/faa-place/TX/Georgetown), built 1956, S/N 1470 - [N2823B](https://openairdocs.org/aircraft/N2823B): [Gulf Helicopters LLC](https://openairdocs.org/faa-owner/GULF%20HELICOPTERS%20LLC), [Santa Fe, TX](https://openairdocs.org/faa-place/TX/Santa%20Fe), built 1956, S/N 1471 - [N2838B](https://openairdocs.org/aircraft/N2838B): [Blessed Beginnings Broadcasting Inc](https://openairdocs.org/faa-owner/BLESSED%20BEGINNINGS%20BROADCASTING%20INC), [Warsaw, IN](https://openairdocs.org/faa-place/IN/Warsaw), built 1957, S/N 1424 - [N2861B](https://openairdocs.org/aircraft/N2861B): [Scotts Helicopter Service Inc](https://openairdocs.org/faa-owner/SCOTTS%20HELICOPTER%20SERVICE%20INC), [Le Sueur, MN](https://openairdocs.org/faa-place/MN/Le%20Sueur), built 1958, S/N 1436 - [N2870B](https://openairdocs.org/aircraft/N2870B): [Bell Homer K](https://openairdocs.org/faa-owner/BELL%20HOMER%20K), [Hillsboro, OH](https://openairdocs.org/faa-place/OH/Hillsboro), built 1957, S/N 1975 - [N28895](https://openairdocs.org/aircraft/N28895): [Rubio-Maldonado Camilo](https://openairdocs.org/faa-owner/RUBIO-MALDONADO%20CAMILO), [Plantation, FL](https://openairdocs.org/faa-place/FL/Plantation), built 1958, S/N 58-5364 - [N2890B](https://openairdocs.org/aircraft/N2890B): [Bolton Air Co](https://openairdocs.org/faa-owner/BOLTON%20AIR%20CO), [Niles, MI](https://openairdocs.org/faa-place/MI/Niles), built 1957, S/N 1565 - [N2895B](https://openairdocs.org/aircraft/N2895B): [A And S Helicopters Inc](https://openairdocs.org/faa-owner/A%20AND%20S%20HELICOPTERS%20INC), [Cahokia, IL](https://openairdocs.org/faa-place/IL/Cahokia), built 1957, S/N 1572 - [N2899B](https://openairdocs.org/aircraft/N2899B): [Classic Rotors Museum](https://openairdocs.org/faa-owner/CLASSIC%20ROTORS%20MUSEUM), [Ramona, CA](https://openairdocs.org/faa-place/CA/Ramona), S/N 1999 All 191: https://openairdocs.org/engine/lycoming-vo-435-series/aircraft.md ## NTSB investigations (630, 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 CEN26LA234](https://openairdocs.org/ntsb/CEN26LA234), Jun 22, 2026: Bell 47G-2 (N65520), Troy, MO, substantial damage, investigation ongoing - [NTSB WPR26LA207](https://openairdocs.org/ntsb/WPR26LA207), Jun 1, 2026: Bell 47G-2 (N88755), Mettler, CA, substantial damage. Probable cause: The pilot's failure to ensure the loading hose had been disconnected before takeoff, which resulted in an interrupted takeoff and subsequent loss of control. Contributing to the accident was the… - [NTSB ERA25LA167](https://openairdocs.org/ntsb/ERA25LA167), Apr 6, 2025: Hiller UH12E (N48263), Rockledge, FL, substantial damage, investigation ongoing - [NTSB ERA23LA157](https://openairdocs.org/ntsb/ERA23LA157), Mar 21, 2023: Bell 47G-2A-1 (N73905), Livonia, NY, substantial damage. Probable cause: The pilot’s delayed action to arrest the high descent rate during a practice autorotation in tailwind conditions which ultimately resulted in loss of control. - [NTSB WPR23LA006](https://openairdocs.org/ntsb/WPR23LA006), Oct 1, 2022: Bell 47G2 (N24067), Mesa, AZ, substantial damage. Probable cause: A total loss of engine power due to fuel exhaustion. - [NTSB WPR22LA096](https://openairdocs.org/ntsb/WPR22LA096), Feb 11, 2022: Bell 47 (N1023V), Fallon, NV, substantial damage. Probable cause: The pilot's failure to maintain control of the helicopter during a hover which, resulted in a collision with a hangar. - [NTSB ERA21LA272](https://openairdocs.org/ntsb/ERA21LA272), Jun 28, 2021: Bell 47G-2A-1 (N147AH), Brasstown, NC, substantial damage. Probable cause: The pilot’s inflight loss of control while conducting a hovering maneuver. - [NTSB GAA20CA062](https://openairdocs.org/ntsb/GAA20CA062), Nov 7, 2019: Bell 47G (N6746D), Groveland, FL, substantial damage. Probable cause: The student pilot's improper cyclic input after a reported hydraulic failure, the reason for which could not be determined, and his failure to follow the emergency procedures, which resulted in a… - [NTSB GAA20CA034](https://openairdocs.org/ntsb/GAA20CA034), Oct 18, 2019: Bell 47G (N7060J), King City, CA, substantial damage. Probable cause: The pilot's failure to maintain a proper descent rate, which resulted in a hard landing and the main rotor blades striking the tailboom. - [NTSB ERA19TA213](https://openairdocs.org/ntsb/ERA19TA213), Jul 8, 2019: Continental Copters Tomcat MK6C (N41830), Franklin, KY, substantial damage. Probable cause: The pilot’s failure to maintain main rotor rpm after takeoff, which resulted in a collision with terrain. - [NTSB GAA19CA250](https://openairdocs.org/ntsb/GAA19CA250), May 6, 2019: Bell 47G (N5990), Denton, TX, substantial damage. Probable cause: The flight instructor's improper decision to instruct the student pilot to establish a hover and reposition the helicopter with a tailwind, which resulted in the student pilot's loss of pitch control. - [NTSB GAA19CA216](https://openairdocs.org/ntsb/GAA19CA216), Apr 17, 2019: Bell 47G (N96671), Donna, TX, substantial damage. Probable cause: The pilot's failure to maintain altitude during an agricultural application flight. - [NTSB CEN19LA067](https://openairdocs.org/ntsb/CEN19LA067), Jan 11, 2019: Bell 47G (N3755Z), Belen, NM, substantial damage. Probable cause: The pilot's failure to maintain adequate main rotor speed while the helicopter was in an out-of-ground effect hover. - [NTSB CEN18LA300](https://openairdocs.org/ntsb/CEN18LA300), Jul 27, 2018: Continental Copters Tomcat MK5A (N9005T), Le Sueur, MN, substantial damage. Probable cause: The pilot's inadequate preflight and in-flight fuel planning, during which he did not visually check the fuel quantity in the fuel tanks and instead relied on the fuel gauges that were showing… - [NTSB CEN18FA258](https://openairdocs.org/ntsb/CEN18FA258), Jul 6, 2018: Bell 47G (N96195), Arlington, IN, substantial damage, 1 fatal. Probable cause: The inflight separation of the upper transmission due to the thread failure of transmission housing attachment bolts, which were installed on the helicopter with thread damage from a prior… - [NTSB WPR18CA096](https://openairdocs.org/ntsb/WPR18CA096), Feb 28, 2018: Bell 47G (N7800S), Pixley, CA, substantial damage. Probable cause: A total loss of engine power due to fuel starvation, which resulted from the pilot’s failure to ensure that adequate fuel was on board for the flight. Contributing to the accident was the pilot’s… - [NTSB WPR17LA206](https://openairdocs.org/ntsb/WPR17LA206), Sep 17, 2017: Bell 47G 5 (N3285T), Salinas, CA, substantial damage. Probable cause: The pilot’s inadequate visual lookout, which resulted in an in-flight collision with a wire. - [NTSB CEN16CA321](https://openairdocs.org/ntsb/CEN16CA321), Aug 7, 2016: Continental Copters Tomcat MK6B (N17H), Sparland, IL, substantial damage. Probable cause: The pilot's improper fuel management, which resulted in fuel exhaustion, a total loss of engine power, and a forced landing. - [NTSB CEN16LA284](https://openairdocs.org/ntsb/CEN16LA284), Jul 25, 2016: Texas Helicopter OH 13H/M74A (N10009), Minonk, IL, substantial damage. Probable cause: Failure of the truck driver to ensure that he had adequate clearance to pass under the helicopter and the failure of the loader to park in a safer area for reloading operations. - [NTSB CEN16LA213](https://openairdocs.org/ntsb/CEN16LA213), Jun 9, 2016: Bell 47G 5 (N6203N), Laureles, TX, substantial damage. Probable cause: The pilot's failure to apply additional engine power when he applied collective input, which led to a loss of rotor speed and the exceedance of the helicopter’s performance capability. - [NTSB WPR16LA099](https://openairdocs.org/ntsb/WPR16LA099), Apr 29, 2016: Bell 47G 5 (N6288N), San Ardo, CA, substantial damage. Probable cause: The failure of the pin in the outboard end of the lateral flight control torque tube. - [NTSB ERA16LA167](https://openairdocs.org/ntsb/ERA16LA167), Apr 20, 2016: Bell 47D1 (N202CH), Myerstown, PA, substantial damage. Probable cause: A total loss of engine power for reasons that could not be determined because examination of the engine revealed no mechanical anomalies that would have precluded normal operation. - [NTSB ERA15LA296](https://openairdocs.org/ntsb/ERA15LA296), Aug 3, 2015: Bell 47G 3B 1 (N4002G), Camden, AL, substantial damage. Probable cause: A failure of the helicopter's hydraulic flight control systems for reasons that could not be determined due to the fire damage, and the pilot's inability to turn off the hydraulic system to relieve… - [NTSB WPR15LA193](https://openairdocs.org/ntsb/WPR15LA193), Jun 20, 2015: Bell 47G 5 (N4427F), Salinas, CA, substantial damage, 1 fatal. Probable cause: The non-instrument-rated pilot's visual flight rules flight into instrument meteorological conditions, which resulted in his spatial disorientation and loss of helicopter control. Contributing to the… - [NTSB GAA15CA122](https://openairdocs.org/ntsb/GAA15CA122), Jun 14, 2015: Continental Copters Tomcat MK5A (N9045T), Elk Mound, WI, substantial damage. Probable cause: The pilot's failure to maintain a positive rate of climb after taking off from the service truck, which resulted in the helicopter impacting terrain. - [NTSB WPR15LA116](https://openairdocs.org/ntsb/WPR15LA116), Feb 27, 2015: Bell 47G 2A (N4774S), Ivanhoe, CA, substantial damage. Probable cause: The pilot’s failure to maintain clearance from a power line while maneuvering at low altitude. - [NTSB CEN14LA415](https://openairdocs.org/ntsb/CEN14LA415), Aug 10, 2014: Bell 47G 2 (N4690), Jeanerette, LA, destroyed, 1 fatal. Probable cause: The pilot’s improper decision to operate an unairworthy helicopter, which resulted in a loss of control and subsequent impact with terrain. - [NTSB CEN14CA391](https://openairdocs.org/ntsb/CEN14CA391), Jul 25, 2014: Continental Copters Tomcat MK5A (N161SH), Osage, MN, substantial damage. Probable cause: The total loss of engine power due to water contamination of the fuel, which resulted in the pilot's forced landing and impact with terrain. Contributing to the accident was the pilot's decision to… - [NTSB WPR14CA296](https://openairdocs.org/ntsb/WPR14CA296), Jul 18, 2014: Bell 47G 2A (N47DT), Merced, CA, substantial damage. Probable cause: The pilot's failure to adequately monitor the environment to maintain clearance from the power pole guide wire during low level maneuvering. - [NTSB WPR14CA290](https://openairdocs.org/ntsb/WPR14CA290), Jul 11, 2014: Bell 47K (N88771), Kingston, WA, substantial damage. Probable cause: The pilot's failure to maintain aircraft control during the landing approach, which resulted in an excessive descent angle and settling with power. - [NTSB CEN14LA418](https://openairdocs.org/ntsb/CEN14LA418), May 28, 2014: Texas Helicopter OH 13H/M74A (N51853), Little Falls, MN, substantial damage, 1 fatal. Probable cause: The pilot's failure to maintain clearance from a tree at the edge of a field that he was spraying. - [NTSB WPR14CA196](https://openairdocs.org/ntsb/WPR14CA196), May 18, 2014: Bell 47G (N16414), Bakersfield, CA, substantial damage. Probable cause: The pilot's failure to maintain aircraft control after the helicopter's skid catching on the side of a trailer during takeoff, which resulted in a dynamic rollover. - [NTSB ERA14FA066](https://openairdocs.org/ntsb/ERA14FA066), Dec 6, 2013: Texas Helicopter M74L (N1001N), Sebring, FL, destroyed, 1 fatal. Probable cause: A partial loss of engine power as a result of contamination of the engine’s fuel supply, and the pilot’s impaired performance due to his use of diphenhydramine, which resulted in his inability to… - [NTSB WPR13LA429](https://openairdocs.org/ntsb/WPR13LA429), Sep 29, 2013: Texas Helicopter OH-13E/M74 (N38113), Santa Maria, CA, substantial damage. Probable cause: The pilot's inadequate monitoring of the environment and failure to maintain clearance from transmission wires during a low-altitude maneuver. - [NTSB WPR13LA404](https://openairdocs.org/ntsb/WPR13LA404), Sep 11, 2013: Bell 47G5 (N7836S), King City, CA, substantial damage. Probable cause: The failure of the helicopter’s center frame tube due to a fatigue crack and corrosion originating from a welded surface. Contributing to the accident was maintenance personnel’s inadequate… - [NTSB CEN13LA537](https://openairdocs.org/ntsb/CEN13LA537), Sep 6, 2013: Continental Copters Tomcat MK5A (N9005T), Arlington, MN, substantial damage. Probable cause: The pilot’s failure to maintain control of the helicopter while maneuvering when he removed his hand from the collective control while plugging in his radio connection to his helmet, which resulted… - [NTSB CEN13LA442](https://openairdocs.org/ntsb/CEN13LA442), Jul 29, 2013: Texas Helicopter OH-13H/M74A (N10009), Streator, IL, substantial damage. Probable cause: The pilot's diverted attention during an agricultural application maneuver, which resulted in the helicopter impacting a corn field. - [NTSB WPR13CA084](https://openairdocs.org/ntsb/WPR13CA084), Jan 3, 2013: Bell 47G (N14841), Five Points, CA, substantial damage. Probable cause: The pilot’s failure to maintain clearance with a telephone pole during a low-level maneuver. - [NTSB CEN13LA086](https://openairdocs.org/ntsb/CEN13LA086), Dec 1, 2012: Bell 47G-2 (N3755Z), Walkerville, MI, substantial damage, 1 fatal. Probable cause: The pilot's failure to maintain altitude while maneuvering, which resulted in a collision with trees. Contributing to the accident was the pilot's decision to fly at a low altitude, which did not… - [NTSB CEN12LA557](https://openairdocs.org/ntsb/CEN12LA557), Aug 14, 2012: Bell 47G-2 (N444EH), Flandreau, SD, substantial damage. Probable cause: A malfunction of the helicopter’s throttle system, which resulted in a loss of engine power during cruise flight. - [NTSB CEN12CA484](https://openairdocs.org/ntsb/CEN12CA484), Jul 27, 2012: Bell 47G-2A (N652HA), Austin, IN, substantial damage. Probable cause: The pilot did not maintain clearance from terrain during a low-level aerial application flight and lost control of the helicopter. - [NTSB CEN11CA540](https://openairdocs.org/ntsb/CEN11CA540), Aug 2, 2011: Bell 47G-2 (N4771N), Charles City, IA, substantial damage. Probable cause: The pilot's failure to refuel the helicopter which resulted in a loss of engine power due to fuel exhaustion. - [NTSB CEN11CA524](https://openairdocs.org/ntsb/CEN11CA524), Jul 28, 2011: Texas Helicopter OH-13H/M74A (N10009), Creston, IL, substantial damage. Probable cause: The pilot's failure to maintain adequate skid clearance from the helicopter cart during landing, resulting in a dynamic rollover. - [NTSB CEN11CA525](https://openairdocs.org/ntsb/CEN11CA525), Jul 27, 2011: Bell 47G-2A (N7578), Nicolett, MN, substantial damage. Probable cause: The pilot's failure to maintain control of the helicopter while maneuvering during an aerial application flight. - [NTSB WPR11CA339](https://openairdocs.org/ntsb/WPR11CA339), Jul 20, 2011: Bell 47G-5 (N1375X), Watsonville, CA, substantial damage. Probable cause: The pilot's failure to maintain clearance from a pole while maneuvering during an aerial application flight. - [NTSB CEN11CA231](https://openairdocs.org/ntsb/CEN11CA231), Mar 17, 2011: Hiller UH-12D (N11CU), Iowa, LA, substantial damage. Probable cause: The pilot's inadequate compensation for gusty crosswinds during takeoff, which resulted in a loss of directional control. - [NTSB WPR10LA446](https://openairdocs.org/ntsb/WPR10LA446), Sep 3, 2010: Bell 47G (N4427F), Salinas, CA, substantial damage. Probable cause: The pilot's visual flight rules flight into instrument meteorological conditions, which resulted in his spatial disorientation and loss of helicopter control. - [NTSB CEN10CA411](https://openairdocs.org/ntsb/CEN10CA411), Jul 15, 2010: Continental Copters Tomcat MK6B (N17H), Blackstone, IL, substantial damage. Probable cause: The helicopter encountered a dust devil at a low altitude during the aerial application flight. - [NTSB ERA09CA542](https://openairdocs.org/ntsb/ERA09CA542), Sep 26, 2009: Schweizer 269C (N233JA), Quarryville, PA, substantial damage. Probable cause: An untrained bystander's attempt to marshal the helicopter, which resulted in the helicopter's inadvertent encounter with an object. - [NTSB WPR09CA333](https://openairdocs.org/ntsb/WPR09CA333), Jul 8, 2009: Bell 47G-2 (N6768D), Turlock, CA, substantial damage. Probable cause: The pilot's failure to maintain rotor RPM while maneuvering at a low altitude. All 630: https://openairdocs.org/engine/lycoming-vo-435-series/ntsb.md ## FAA accident and incident reports (512, 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 20260622010129A](https://openairdocs.org/incident/20260622010129A), Jun 22, 2026: Bell 47G-2 (N65520), Troy, MO, Destroyed. The airman was conducting currency flight under 14 CFR part 91 in a newly purchased helicopter. The airman maneuvered the helicopter for take-off with the… - [Accident 20260601005489A](https://openairdocs.org/incident/20260601005489A), Jun 1, 2026: Bell 47G-2 (N88755), Mettler, CA, Substantial damage. During part 137 agricultural operations, the helicopter landed on an agricultural support truck for loading. After loading, the pilot initiated takeoff while… - [Accident 20250406004109A](https://openairdocs.org/incident/20250406004109A), Apr 6, 2025: Hiller H-23D (N48263), Rockledge, FL, Destroyed. The rotorcraft had departed from merritt island airport (kcoi) enroute to the [privacy data omitted] in lakeland, FL. Approximately 2.6 miles west of runway 29… - [Accident 20230321002479A](https://openairdocs.org/incident/20230321002479A), Mar 21, 2023: Bell 47G-2A-1 (N73905), Livonia, NY, Substantial damage. On Tuesday March 21, 2023 [privacy data omitted], a Bell 47G-2A-1 crashed into a field with one pilot and one passenger aboard during a practice autorotation.… - [Accident 20221001021509A](https://openairdocs.org/incident/20221001021509A), Oct 1, 2022: Bell 47G (N24067), Mesa, AZ, Substantial damage. The pilot departed chandler airport (chd) at 0445 after preflighting the aircraft. He then completed 3 night landings at (chd) heliport and then proceeded… - [Accident 20220211001799A](https://openairdocs.org/incident/20220211001799A), Feb 11, 2022: Bell 47G-2 (N1023V), Fallon, NV, Destroyed. -While landing from a hover, the helicopter drifted towards the hangar as it was still light on the skids. -The pilot panicked and applied aft left cyclic.… - [Accident 20210628011069A](https://openairdocs.org/incident/20210628011069A), Jun 28, 2021: Bell 47G-2A-1 (N147AH), Brasstown, NC, Destroyed. On June 26, 2021 at approximately 1320, a Bell 47G lifted off from a transport trailer at a grass strip located in Brasstown, north carolina. After lifting off… - [Accident 20191107020869A](https://openairdocs.org/incident/20191107020869A), Nov 7, 2019: Bell 47G-2 (N6746D), Groveland, FL, Substantial damage. Ref SO15 ptrs 202002081: the pilot stated that he was practicing hovering procedures and experienced a hydraulic issue with the controls. He stated that he… - [Accident 20190708016289A](https://openairdocs.org/incident/20190708016289A), Jul 8, 2019: Continental Copters Inc. TOMCAT MK6C (N41830), Franklin, KY, Destroyed. Aircraft landed in a corn field tail down, tail rotor departed aircraft and aircraft lost directional control. Aircraft turned 90 degrees left and had severe… - [Incident 20190618024219I](https://openairdocs.org/incident/20190618024219I), Jun 18, 2019: Bell 47G-2 (N9025), New Richmond, WI, Minor damage. The pilot started the aircraft in preparation for a hover-taxi to the airport ramp area, as the pilot added collective the aircraft started an uncommanded roll… - [Incident 20190617017439I](https://openairdocs.org/incident/20190617017439I), Jun 17, 2019: Bell 47G-2A (N7578), Progreso, TX, Minor damage. June 17, 2019 at 1158 CDT, aircraft bearing registration number N7578, struck a high voltage power line and shattered the canopy. Visual meteorological… - [Accident 20190506004139A](https://openairdocs.org/incident/20190506004139A), May 6, 2019: Bell 47G-2 (N5990), Denton, TX, Substantial damage. While landing main rotor struck tail boom of aircraft - [Accident 20190417010829A](https://openairdocs.org/incident/20190417010829A), Apr 17, 2019: Bell 47G-3B-1 (N96671), Donna, TX, Substantial damage. A Bell 47 aircraft bearing registration Number N96671, registered to hendrickson flying service inc, impacted terrain during an aerial spraying operation north… - [Accident 20190111007479A](https://openairdocs.org/incident/20190111007479A), Jan 11, 2019: Bell 47G-2 (N3755Z), Belen, NM, Substantial damage. On January 11, 2019 a Bell helicopter 47 G-2 (N3755Z) registered to ernie l. brown, departed Belen Regional Airport (brg) in Belen, NM for a local VFR flight.… - [Accident 20180726014749A](https://openairdocs.org/incident/20180726014749A), Jul 26, 2018: Continental Copters Inc. TOMCAT MK5A (N9005T), Lesueur, MN, Substantial damage. Pilot departed at dusk. Poor preflight planning. Ran out of fuel. Autorotation was not existent. - [Accident 20180706009169A](https://openairdocs.org/incident/20180706009169A), Jul 6, 2018: Bell 47G-2 (N96195), Arlington, IN, Substantial damage, 1 fatal. On July 6, 2018, at approximately 5:30PM eastern daylight time (EDT), a Bell 47G, N96195, impacted a corn field near Arlington, Indiana. The commercial pilot… - [Accident 20180228009629A](https://openairdocs.org/incident/20180228009629A), Feb 28, 2018: Bell 47G-5 (N7800S), Pixley, CA, Destroyed. On February 28, 2018, N7800S a Bell 47 helicopter operating under part 137 agriculture certificate was involved in an accident destroying the aircraft. During… - [Accident 20160807014169A](https://openairdocs.org/incident/20160807014169A), Aug 7, 2016: Continental Copters Inc. TOMCAT MK6B (N17H), Sparland, IL, Substantial damage. While spraying a field, the pilot pulled up to avoid trees. As he pulled up, he experienced a reduction in power and the aircraft pulled left. He continued the… - [Accident 20160725011569A](https://openairdocs.org/incident/20160725011569A), Jul 25, 2016: Texas Helicopter Corp OH-13H/M74A (N10009), Minonk, IL, Substantial damage. On July 25, 2016, approximately 1050 local time, a Texas Helicopter Corp OH-13H/M74A, N10009, was Substantially damaged during loading operations near Minonk,… - [Accident 20160609024669A](https://openairdocs.org/incident/20160609024669A), Jun 9, 2016: Bell 47G-5 (N6203N), Laureles, TX, Substantial damage. During pull up maneuver pilot missed managed controls. This was due to lack of experience managing throttle control on a piston Bell 47. During an attempt to… - [Accident 20160429005499A](https://openairdocs.org/incident/20160429005499A), Apr 29, 2016: Bell 47G-5 (N6288N), San Ardo, CA, Substantial damage. On April 29, 2016, near San Ardo, CA, N6288N, a Bell 47G-5, spraying a field with pesticide, entered a left turn and leveled off. The aircraft started shaking… - [Accident 20160420006219A](https://openairdocs.org/incident/20160420006219A), Apr 20, 2016: Bell 47D1 (N202CH), Lancaster, PA, Substantial damage. The CFI was demonstrating an auto rotation while conducting a flight review. The maneuver was initiated at approximately 1200 feet above ground level (AGL).… - [Accident 20150803016289A](https://openairdocs.org/incident/20150803016289A), Aug 3, 2015: Bell 47G-3B-1 (N4002G), Camden, AL, Destroyed. 08/03/2015 1600 Local time. Pilot stated that during approach to a landing spot from the southeast, with winds light and variable from the northwest, at about… - [Accident 20150620011659A](https://openairdocs.org/incident/20150620011659A), Jun 20, 2015: Bell 47G-5 (N4427F), Destroyed, 1 fatal. A Bell 47G-5 crashed under unknown circumstances while crop dusting. - [Accident 20150614007529A](https://openairdocs.org/incident/20150614007529A), Jun 14, 2015: Continental Copters Inc. TOMCAT MK5A (N9045T), Downsville, WI, Substantial damage. Pilot was conducting aerial applications. After loading chemical the aircraft departed the platform on top of the service truck. Pilot stated that he nosed the… - [Accident 20150227001849A](https://openairdocs.org/incident/20150227001849A), Feb 27, 2015: Bell 47G-2A (N4774S), Ivanhoe, CA, Destroyed. While performing aerial application, the rotorcraft struck a power line and crashed in an orange grove. Just prior to the accident the PIC had noticed workers… - [Accident 20140810014299A](https://openairdocs.org/incident/20140810014299A), Aug 10, 2014: Bell 47G-2 (N4690), Jeanerette, LA, Destroyed, 1 fatal. Helicopter was observed to make a 180 degree turn from a northerly direction to the south. Upon turning around the helicopter was observed descending and then… - [Accident 20140725012019A](https://openairdocs.org/incident/20140725012019A), Jul 25, 2014: Continental Copters Inc. TOMCAT MK5A (N161SH), Osage, MN, Substantial damage. According to the pilot, while performing aerial application, the engine sputtered. He pulled up slightly and the engine smoothed for a few seconds and started… - [Accident 20140718016419A](https://openairdocs.org/incident/20140718016419A), Jul 18, 2014: Bell 47G-2A (N47DT), Merced, CA, Destroyed. On July 18, 2014, N47DT a Bell 47 helicopter which was conducting agricultural spray operations made contact with a power line pole guide wire while attempting… - [Accident 20140712012649A](https://openairdocs.org/incident/20140712012649A), Jul 12, 2014: Bell 47K (N88771), Kingston, WA, Substantial damage. On approach to a beach near Kingston, WA, the pilot reported losing control of the helicopter while attempting arrest his descent for landing. The helicopter… - [Accident 20140528007559A](https://openairdocs.org/incident/20140528007559A), May 28, 2014: Texas Helicopter Corp OH-13H/M74A (N51853), Fort Ripley, MN, Substantial damage, 1 fatal. While conducting aerial application on a field the aircraft tail rotor made contact with a tree, traveled approximately 70 yards and crashed into the roof of a… - [Accident 20140518013349A](https://openairdocs.org/incident/20140518013349A), May 18, 2014: Bell 47G (N16414), Bakersfield, CA, Substantial damage. On may 5, 2014 , N16414, a Bell 47 helicopter, was involved in an accident when the aircraft performed a dynamic rollover off a trailer. The aircraft was… - [Accident 20131206023419A](https://openairdocs.org/incident/20131206023419A), Dec 6, 2013: Texas Helicopter Corp M74L (N1001N), Sebring, FL, Destroyed, 1 fatal. On January 6, 2013, at or about 1630 EST, jon edward whitaker, holder of commercial pilot certificate number 542861953, while acting as pilot in command of a… - [Accident 20130929020249A](https://openairdocs.org/incident/20130929020249A), Sep 29, 2013: Texas Helicopter Corp OH-13E/M74 (N38113), Santa Maria, CA, Substantial damage. At the time of the accident, the pilot was conducting aerial application operations under 14 CFR part 137, and actively spraying an agricultural field. The… - [Accident 20130911022579A](https://openairdocs.org/incident/20130911022579A), Sep 11, 2013: Bell 47G-5 (N7836S), King City, CA, Substantial damage. During aerial application activity, the pilot stated he heard a loud bang and made a hard landing on a dirt road 6 miles se of King City, CA. - [Accident 20130906017709A](https://openairdocs.org/incident/20130906017709A), Sep 6, 2013: Continental Copters Inc. TOMCAT MK5A (N9005T), Arlington, MN, Substantial damage. According to the pilot's statement, while transitioning between fields in level cruise at between 300' and 400' AGL, the pilot transferred his left hand to the… - [Incident 20130816015559I](https://openairdocs.org/incident/20130816015559I), Aug 16, 2013: Texas Helicopter Corp M74L (N1001N), Hamburg, MN, Minor damage. While performing aerial application on a field near Hamburg, MN on 08/16/2013, the pilot stated he was operating north to south on a narrow field and struck 2… - [Accident 20130729014049A](https://openairdocs.org/incident/20130729014049A), Jul 29, 2013: Texas Helicopter Corp OH-13H/M74A (N10009), Leonore, IL, Destroyed. On July 29, 2013, at approximately 0605 CDT, N10009 a Texas helicopter OH-13H/M47A, impacted the ground in a corn field near [privacy data omitted], Leonore… - [Accident 20130103000099A](https://openairdocs.org/incident/20130103000099A), Jan 3, 2013: Bell 47G-5A (N14841), Five Points, CA, Substantial damage. On January 3, 2013 a Bell 47G5A was approaching a field to spray a herbicide called "prowl". The aircraft approached the field of new garlic going under the 40… - [Accident 20121201025909A](https://openairdocs.org/incident/20121201025909A), Dec 1, 2012: Bell 47G-2 (N3755Z), Hart, MI, Destroyed, 1 fatal. Passenger reported that on a pleasure flight looking for deer the helicoptor seemed different, pilot acknowledged that "we're going down" just prior to flying… - [Accident 20120814019469A](https://openairdocs.org/incident/20120814019469A), Aug 14, 2012: Bell 47G-2 (N444EH), Flandreau, SD, Substantial damage. On August 14th, 2012 at 08:34 am CDT (local time) a bht 47G-2 helicopter was involved in an accident/engine power loss while in cruise @ 500FT AGL, during a… - [Accident 20120727017429A](https://openairdocs.org/incident/20120727017429A), Jul 27, 2012: Bell 47G-2A (N652HA), Austin, IN, Substantial damage. The aircraft was on its third low level pass at 2-3 ft altitude at approximately 60 KTS over a soybean field doing aerial application operations. The pilot… - [Accident 20110802020479A](https://openairdocs.org/incident/20110802020479A), Aug 2, 2011: Bell 47G-2 (N4771N), Charles City, IA, Substantial damage. As stated by the pilot, upon landing with the intention of refueling, he exited the aircraft and became distracted by ground personnel when they showed him a… - [Accident 20110728015749A](https://openairdocs.org/incident/20110728015749A), Jul 28, 2011: Bell 47G-2A (N7578), Nicollet, MN, Substantial damage. On 07/28/2011, at 1638CDST, N7578, a Bell 47-G2A, piloted by [privacy data omitted], operated by scott's helicopter service ([privacy data omitted])… - [Accident 20110727016969A](https://openairdocs.org/incident/20110727016969A), Jul 27, 2011: Texas Helicopter Corp OH-13H/M74A (N10009), Creston, IL, Substantial damage. Pilot had been Flying all day. He returned to base and in the process of landing, he hooked a skid and rolled over. - [Accident 20110720017189A](https://openairdocs.org/incident/20110720017189A), Jul 20, 2011: Bell 47G-5 (N1375X), Watsonville, CA, Substantial damage. While conducting agricutural spraying operations pilot misjudged distance from an electrical power line pole. Main rotor struck power line pole. - [Accident 20110317009549A](https://openairdocs.org/incident/20110317009549A), Mar 17, 2011: Hiller UH-12D (N11CU), Iowa, LA, Substantial damage. It was determined the aircraft entered a dynamic roll over after hard contact with the landing surface occurred. It is believed, the aircraft was subjected to… - [Accident 20100903045679A](https://openairdocs.org/incident/20100903045679A), Sep 3, 2010: Bell 47G-5 (N4427F), Salinas, CA, Substantial damage. Rotorcraft departed Salinas airport with a special VFR clearance that reported the weather as 2-3 mile visibility with a 100 foot ceiling. While enroute at… - [Accident 20100714044139A](https://openairdocs.org/incident/20100714044139A), Jul 14, 2010: Continental TOMCAT MK6B (N17H), Blackstone, IL, Destroyed. Helicopter was involved in aerial application near Blackstone, IL. Pilot had just loaded the spray tank. He had burned 20 minutes worth of fuel out of a full… - [Incident 20100424032659I](https://openairdocs.org/incident/20100424032659I), Apr 24, 2010: Bell 47G-2A-1 (N8542D), Isabella, MN, No damage. The aircraft was operating in a sandy, and rocky area seeding trees for the MN dnr. While repositioning to pickup additional seed, the engine failed. The… All 512: https://openairdocs.org/engine/lycoming-vo-435-series/incidents.md ## Service difficulty reports (1) As reported by operators and repair stations, by the model named in the report. - [SDR 2007FA0000297](https://openairdocs.org/sdr/2007FA0000297), Mar 5, 2007: BLADE. DAMAGED. THE STAINLESS STEEL ABRASION STRIP ON THE LEADING EDGE OF THE COMPOSITE TAIL ROTOR BLADE SEPARATED FROM BLADE IN FLIGHT. PILOT NOTED A VIBRATION IN A SPRAY TURN ## STCs that may be installed (OpenAirDocs) (23) 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 SE2932SW](https://openairdocs.org/stc/SE2932SW): Install carburetor air temperature indicator. Approved for Aircooled Motors (Franklin Engine Co.) equipped with float carburetors. Model eligibility included here may not be inclusive. Alcor LLC - [STC SE01954SE](https://openairdocs.org/stc/SE01954SE): Installation of engine crankcase seal. Ly-Con Rebuilding Company. Lists VO-435-A1A - [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 VO-435-B1A - [STC SE8628SW](https://openairdocs.org/stc/SE8628SW): Installation of oil nozzles for lubrication of cam and filters. Cygnet Aerospace Corp. Lists VO-435-A1A (O-435-21) - [STC SE4408SW](https://openairdocs.org/stc/SE4408SW): Miscellaneous engine cylinder replacement parts. Continental Motors, Inc - [STC SE7504SW](https://openairdocs.org/stc/SE7504SW): Installation of any or all parts listed on Airmotive Engineering Drawing List No. 852-1, Rev. 1, dated 10/4/88, or later FAA approved revision. Continental Motors, Inc - [STC SE7665SW](https://openairdocs.org/stc/SE7665SW): Installation of parts listed on Airmotive List No. 8810-3, Rev 6. Continental Motors, Inc - [STC SE8776SW](https://openairdocs.org/stc/SE8776SW): Installation of coated cylinders and piston rings. Continental Motors, Inc - [STC SE2902NM](https://openairdocs.org/stc/SE2902NM): Lycoming valve cover gasket. Real Gaskets Tennessee. Lists VO-435-A1A (O-435-21) - [STC SE144GL](https://openairdocs.org/stc/SE144GL): Modify engine to increase compression ratio to 8.7:1. Scott's Bell 47 Inc. Lists VO-435-A1F - [STC SE2500SW](https://openairdocs.org/stc/SE2500SW): Modification to higher compression ratio. Scott's Bell 47 Inc. Lists VO-435-A1E - [STC SE2733SW](https://openairdocs.org/stc/SE2733SW): Modification to higher compression ratio. Scott's Bell 47 Inc. Lists VO-435-A1E - [STC SE1-201](https://openairdocs.org/stc/SE1-201): Installation of the Richter Aero Equipment Type B-4 or B-5 Temperature Probe. (O-360 SERIES (excl. A1C, C2B, C2D)). MidContinent Instru Co Inc - [STC SE09492SC](https://openairdocs.org/stc/SE09492SC): Installation and usage of Exxon 20W50 multigrade aircraft engine oil conforming to Exxon Oil formulation WS-3013. Exxon Company USA - [STC SE00350SE](https://openairdocs.org/stc/SE00350SE): Installation of sump mounted chip detector. Aviation Development Corporation. Lists VO-435-A1A (O-435-21) - [STC SE8023SW](https://openairdocs.org/stc/SE8023SW): Installation and usage of AEROSHELL. Shell Development Co - [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 SE5924SW](https://openairdocs.org/stc/SE5924SW): Installation of stainless steel replacement exhaust studs on AVCO engines. Perrigo & Steele Aircraft Engr Company - [STC SE80NE](https://openairdocs.org/stc/SE80NE): Installation and usage of Bel-Ray synthetic aviation oil, Bel-Ray Aero 1, (nonsupercharged), horizontally opposed direct drive, aircraft engines of 350 hp. or less. Bel-Ray Company, Inc - [STC SE128NE](https://openairdocs.org/stc/SE128NE): Use of AMS/OIL 15W 50 synthetic piston aircraft oil in Avco engines. AMS/OIL - [STC SE959EA](https://openairdocs.org/stc/SE959EA): Modification to higher compression ration. Agrotors, Inc. Lists VO-435-A1E - [STC SE2-856](https://openairdocs.org/stc/SE2-856): American Bosch Induction vibrator VJR24B56X. Bell Helicopter Textron - [STC SE44WE](https://openairdocs.org/stc/SE44WE): Use of Kling Aviation Oil, Specifications KL-100, KL-200 and KL-300 in Continental and Lycoming engines. Kling Oil Company --- 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.