Final NTSB investigations: Lycoming R680-4P-B4

47 cases on aircraft whose registry engine model is Lycoming R680-4P-B4. Aircraft are matched to the registry by N-number and event date, checked against the reported serial number, make and model, so older matches can be wrong.

Cases per year

19642026
Final NTSB investigations: Lycoming R680-4P-B4 per year, 1964–2026: 47 cases
19644
19653
19661
19681
19692
19701
19711
19721
19731
19743
19753
19763
19782
19802
19821
19851
19861
19871
19881
19892
19941
20051
20071
20101
20111
20121
20141
20161
20212
20231
20261

Latest cases

Query with SQL
duckdb -csv -c "SELECT c.\"ntsbNumber\", c.\"eventDate\", c.\"eventType\", c.\"eventCity\", c.\"eventStateOrRegion\", a.n_number, a.\"aircraftMake\", a.\"aircraftModel\", c.\"highestInjuryLevel\", c.\"totalFatal\", c.\"completionStatus\", c.report_url
  FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c.\"mKey\" AND a.position = 1
  WHERE c.\"completionStatus\" = 'Completed'
    AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41542'))
  ORDER BY c.\"eventDate\" DESC, c.\"ntsbNumber\" DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

NTSB CEN26LA182Accident · No injuriesClass 4 · LimitedFinal reportBoeing A75N1(PT17) · Waco, TXThe pilot’s failure to maintain directional control during the landing with a crosswind.May 9, 2026 · N55732 · Substantial damageNTSB ERA23LA381Accident · No injuriesClass 4 · LimitedFinal reportBoeing B75 · Erwinna, PAThe pilot’s failure to maintain control of the airplane while taking off in a crosswind.Sep 19, 2023 · N46Y · Substantial damageNTSB CEN21LA343Accident · Minor injuriesClass 3 · LimitedFinal reportStinson JR. SR · Ripon, WIA total loss of engine power due to fuel starvation.Jul 29, 2021 · N81Y · Substantial damageNTSB WPR21LA208Accident · Minor injuriesClass 3 · LimitedFinal reportBoeing A75N1(PT17) · Hollister, CAThe improper installation of a relief valve spring that was shorter than the standard spring length, which slowed the response of the propeller governor to change the pitch of the blades during climbout, resulting in a partial loss of power.May 26, 2021 · N75016 · Substantial damageNTSB CEN16FA116Accident · 2 fatalField investigationFinal reportCurtiss Wright Travel AIR 4000 · Palmer Lake, COThe pilot's failure to maintain sufficient airspeed while maneuvering at low altitude in strong gusting winds, which resulted in exceedance of the airplane's critical angle of attack and an aerodynamic stall/spin. Contributing to the accident was the pilot's…Mar 2, 2016 · N6464 · DestroyedNTSB ERA14CA395Accident · No injuriesData collectionFinal reportBoeing E75N1 · Penridge, PAThe pilot's delayed action in correcting a drift to the right during landing roll and his improper use of the wheel brakes which resulted in the airplane nosing over.Jul 17, 2014 · N53546 · Substantial damageNTSB ERA13LA054Accident · No injuriesLimited investigationFinal reportVans RV-12 · Williamson, GAThe inadequate visual lookout by the pilots of both airplanes, which resulted in a midair collision.Nov 10, 2012 · N678AD · 2 aircraft · Substantial damageNTSB CEN11LA375Accident · No injuriesLimited investigationFinal reportBoeing A75N1(PT17) · Junction City, KSThe degraded engine performance due to low compression on the cylinder and delayed ignition timing.Jun 4, 2011 · N50052 · Substantial damageNTSB ERA10CA465Accident · No injuriesData collectionFinal reportStearman E75 · Jackson, GAThe pilot's diverted attention toward an unsecured engine cowl door after takeoff which resulted in his failure to maintain airspeed and altitude. Contributing to the accident was the pilot’s inadequate preflight inspection of the airplane.Sep 4, 2010 · N1370V · Substantial damageNTSB NYC07LA124Accident · 2 fatalLimited investigationFinal reportBoeing Stearman A75N1 · Charleston, SCAn in-flight collision with water for undetermined reasons.May 23, 2007 · N55718 · Substantial damageNTSB LAX06LA056Accident · No injuriesLimited investigationFinal reportBoeing B75N1 · Corona, CAfailure of both pilots to see and avoid each other during traffic pattern operations at a non-towered airport.Dec 11, 2005 · N65696 · 2 aircraft · Substantial damageNTSB FTW94LA254Accident · Serious injuriesLimited investigationFinal reportBoeing A75 · Comfort, TXThe pilot's inadequate compensation for the crosswind and his failure to push the propeller lever full forward. Factors were the crosswind and the pilot's failure to follow the before takeoff checklist.Jul 31, 1994 · N60459 · Substantial damageNTSB FTW89LA130Accident · No injuriesLimited investigationFinal reportStinson V77 · El Paso, TXPilot's failure to maintain directional control during landing roll in a high crosswind environment.Jul 9, 1989 · N65345 · Substantial damageNTSB ATL89LA069Accident · No injuriesLimited investigationFinal reportBoeing E75 · Salisbury, NCImproper use of carburetor heat by the pilot, which resulted in carburetor ice. Factors related to the accident were: carburetor icing conditions and obstruction(s)/utility pole near the departure end of the runway.Jan 5, 1989 · N52124 · Substantial damageNTSB FTW88DRG08Accident · No injuriesFinal reportBoeing Stearman E-75 · Fisher, TXAfter touchdown, the pilot stated that he lost directional control and the right main gear ran off the right side of the runway. During attempted recovery, the airplane rolled off the left side of the runway, collided with a drainage ditch and nosed over to…Apr 3, 1988 · N75031 · Substantial damageNTSB MKC88LA006Accident · No injuriesLimited investigationFinal reportBoeing A-75 · Creve Coeur, MOWhile practicing stop and go ldgs, plt lost control during rollout. Acft swerved and entered an inadvertent ground loop. The right main landing gear failed and the right lower wing contacted the ground.Oct 9, 1987 · N1754M · Substantial damageNTSB FTW86LA087Accident · No injuriesLimited investigationFinal reportBoeing PT-13/E-75 · Dallas, TXThe plt had just departed the arpt, started to turn crosswind at 500 ft and began climbing, when the eng started sputtering and lost pwr. He did not have enough alt to return to the arpt and had to ditch the acft 200 yds off the north end of the rwy. No…May 15, 1986 · N10583 · Substantial damageNTSB DEN85LA139Accident · No injuriesLimited investigationFinal reportBoeing A75N1 · Grand Junction, COThe plt reported that as he arrived at the destination (canyonlands, UT), there was a storm over the arpt, so he diverteded toward delta, CO. About 10 mi from delta, he encountered another storm, so he turned toward Grand Junction, CO. Before reaching the…May 19, 1985 · N49926 · Substantial damageNTSB NYC82DNC12Accident · No injuriesFinal reportBoeing PT-17 · Hamlin, METhe pilot departed a private strip with 150 gallons of water mixed with fungicide and insecticide. After takeoff, he turned and began climbing over rising terrain. The terrain sloped upward from a river, rising about 400 ft. the pilot reported that he failed…Jul 31, 1982 · N1344M · Substantial damageNTSB FTW80FPG37Accident · No injuriesClosedBoeing PT-13D · N Little Rock, ARJun 22, 1980 · N75658 · Substantial damageNTSB MIA80DLG08Accident · No injuriesClosedBoeing A75N1 · Columbia, SCApr 6, 1980 · N55718 · Substantial damageNTSB NYC78FHA34Accident · No injuriesClosedStearman PT-17 · Pottstown, PASep 17, 1978 · N46Y · Substantial damageNTSB LAX78FUJ82Accident · Serious injuriesClosedTravel Air 4000 · Tolleson, AZJul 12, 1978 · N609H · DestroyedNTSB NYC76FNC55Accident · No injuriesClosedBoeing A75N1 · Belmont, MEJul 10, 1976 · N70043 · DestroyedNTSB LAX76FUG58Accident · Serious injuriesClosedStinson V-77 · 29 Palms, CAJun 22, 1976 · N69747 · DestroyedNTSB FTW76FQD23Accident · No injuriesClosedStinson V-77 · El Paso, TXMay 1, 1976 · N65345 · Substantial damageNTSB LAX76FUQ14Accident · No injuriesClosedStinson V-77 · Pacoima, CANov 12, 1975 · N69986 · Substantial damageNTSB OAK75DVG48Accident · No injuriesClosedStearman A75N1 · Orland, CAMar 14, 1975 · N4763V · Substantial damageNTSB FTW75DPG40Accident · No injuriesClosedBoeing E75N1 · West Helena, ARFeb 25, 1975 · N75667 · Substantial damageNTSB OAK75IP019Incident · No injuriesClosedBoeing 747 · Honolulu, HINov 17, 1974 · N731 · Minor damageNTSB MIA75FKG19Accident · Minor injuriesClosedBoeing A75N1 · Blakely, GAAug 20, 1974 · N65871 · Substantial damageNTSB LAX75FUG01Accident · Minor injuriesClosedNaval Fcty N3N-3 · Lucerne, CAJul 21, 1974 · N44760 · Substantial damageNTSB MKC73DCA19Accident · No injuriesClosedBoeing A75-N1 · Campbell, MOMar 28, 1973 · N75016 · Substantial damageNTSB CHI73DEE23Accident · No injuriesClosedBoeing B75N1 · Wheeling, ILAug 12, 1972 · N5404N · Substantial damageNTSB FTW72FPG40Accident · No injuriesClosedBoeing E75N1 · Aubrey, ARSep 3, 1971 · N75667 · Substantial damageNTSB OAK70DVG07Accident · No injuriesClosedBoeing E-75 · Willows, CAApr 8, 1970 · N4763V · Substantial damageNTSB MIA70D0119Accident · No injuriesClosedBoeing A75 · West Columbia, SCJun 4, 1969 · N55718 · Substantial damageNTSB LAX69F0343Accident · Minor injuriesClosedTravelair 4000 · El Mirage, AZApr 21, 1969 · N6203 · DestroyedNTSB FTW69D0205Accident · No injuriesClosedBoeing A75 · Bradley, ARSep 12, 1968 · N151J · DestroyedNTSB FTW66F0673Accident · No injuriesClosedBoeing A7571 · Kaplan, LAMay 18, 1966 · N264HC · Substantial damageNTSB MIA66F0389Accident · No injuriesClosedBoeing PT-13 · Atlanta, GADec 20, 1965 · N1714M · Substantial damageNTSB MIA66F0208Accident · Minor injuriesClosedBoeing A-75 · Mattson, MSAug 25, 1965 · N5820N · Substantial damageNTSB NYC66D0047Accident · No injuriesClosedStinson SM-8A · Provincetown, MAJun 20, 1965 · N205W · Substantial damageNTSB UNK64X4045Accident · No injuriesClosedBoeing 75N1 · Lepanto, ARSep 19, 1964 · N79536 · Substantial damageNTSB UNK64X3733Accident · No injuriesClosedBoeing E75N1 · Hazen, ARSep 2, 1964 · N69858 · Substantial damageNTSB UNK64X1658Accident · Minor injuriesClosedStearman E75N1 · Henry County, ALMay 7, 1964 · N3724C · DestroyedNTSB UNK64X1498Accident · No injuriesClosedBoeing A75 · Ville Platte, LAApr 28, 1964 · N1703B · Substantial damage