NTSB investigations: Aeronca 11AC
275 cases on aircraft the registry lists as Aeronca 11AC. 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.
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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.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('0191102'))
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.
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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('0191102'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESCRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
NTSB FTW99LA227Accident · No injuriesLimited investigationFinal reportAeronca 11AC · Rockwall, TXThe mechanic's improper machining of the crankshaft during a major overhaul, which resulted in a fatigue crack and subsequent failure of the crankshaft. A factor was the lack of suitable terrain for the forced landing.NTSB IAD99LA055Accident · No injuriesLimited investigationFinal reportAeronca 11BC · Millbrook, NYwas the pilot's inadequate compensation for winds and his failure to maintain directional control.NTSB CHI98LA262Accident · Serious injuriesLimited investigationFinal reportAeronca 11BC · Blue Springs, NEthe pilot's inadequate visual outlook to avoid impact with a wire. Factors were sunglare and the wire (static).NTSB FTW97LA018Accident · No injuriesLimited investigationFinal reportAeronca 11BC · Oil City, LAthe failure of the pilots of both aircraft to maintain an adequate visual lookout. Factors were: different traffic pattern altitudes flown by the two pilots, and the sunglare encountered by the pilot of the ultralight.NTSB CHI96FA290Accident · 2 fatalField investigationFinal reportAeronca 11AC · Charlotte, MIthe pilot's improper use of engine controls (carburetor heat and/or throttle), while making a relatively high speed approach, low pass, and pull-up, which resulted in partial loss of engine power; and failure of the pilot to maintain sufficient airspeed after…NTSB MIA96LA195Accident · No injuriesLimited investigationFinal reportAeronca 11AC · Wedowee, ALThe failure of the pilot to obtain a preflight weather briefing and his failure to maintain directional control during the landing roll following a precautionary landing due to adverse weather encountered during the flight.NTSB MIA96LA158Accident · Minor injuriesLimited investigationFinal reportAeronca 11-AC · Green Cove Spgs, FLThe pilot's improper planning/decision by failing to ensure that the airplane would be able to clear obstructions at the end of the runway, while taking off with a tailwind component; and his failure (or inability) to flare the airplane after turning back to…NTSB ANC95LA074Accident · Serious injuriesLimited investigationFinal reportChampion 11BC-S · Anchorage, AKThe pilot's improper compensation for the wind conditions. Factors associated with the accident are gusty winds and associated downdrafts.NTSB CHI95LA084Accident · No injuriesLimited investigationFinal reportAeronca 11AC · Kenosha, WIthe student's failure to maintain directional control during the landing roll.NTSB NYC94LA152Accident · Serious injuriesLimited investigationFinal reportAeronca 11AC · Schuylerville, NYthe pilots failure to maintain adequate airspeed, which resulted in a stall/mush.NTSB MIA94LA180Accident · No injuriesLimited investigationFinal reportAeronca 11AC · Lutz, FLThe certified flight instructor's improper supervision of the student pilot during a wheel landing resulting in an on ground loss of control (inadvertent ground loop). Contributing to the accident was the student pilot's improper use of flight controls and…NTSB LAX94LA267Accident · 1 fatalLimited investigationFinal reportAeronca 11AC · Wickenburg, AZLoss of engine power for an unknown reason, and failure of the pilot to maintain airspeed, which resulted in an inadvertent stall and collision with the ground.NTSB NYC94LA088Accident · 1 fatalLimited investigationFinal reportAeronca 11AC · Berwick, METhe pilot's inadequate preflight which fail to detect proper operation of the elevator which resulted in the loss of control inflight. A factor is inadequate maintenance which consisted of misrigging of the elevator flight controls.NTSB CHI94LA158Accident · Minor injuriesLimited investigationFinal reportAeronca 11AC · Montello, WIthe pilot's inadequate compensation for the wind conditions. A factor related to the accident was the crosswind.NTSB CHI94LA151Accident · No injuriesLimited investigationFinal reportAeronca 11 AC · Carmi, ILpoor preflight planning/preparation. Factors associated with the accident were the high vegetation (grass) and the ditch.NTSB ANC94LA003Accident · 1 fatalLimited investigationFinal reportAeronca 11AC · Kenney Lake, AKThe pilot's intentional VFR takeoff into instrument meteorological conditions which resulted in spatial disorientation and a loss of control. Factors in the accident were the weather and low light conditions.NTSB ANC93LA150Accident · No injuriesLimited investigationFinal reportAeronca 11AC · Galena, AKThe loss of engine power for undetermined reasons. A factor was the lack of suitable terrain on which to make a forced landing.NTSB NYC93LA009Accident · No injuriesLimited investigationFinal reportAeronca 11-AC · Columbus, OHThe pilot failed to maintain control of the airplane, resulting the airplane departing the runway and impacted with the VASI lights.NTSB CHI91DEM06Accident · 1 fatalFinal reportAeronca 11-AC · Central Lake, MIA result of the pilot in command not maintaining aircraft control and not performing remedial action after the airplane entered the steep descent. A factor contributing to this accident was the pilot in command's lack of recent experience.NTSB LAX91LA201Accident · No injuriesLimited investigationFinal reportAeronca 11AC · Madera, CAThat the pilot failed to properly recover from a bounced landing. Contributing to this accident was the pilot's lack of experience in the airplane.NTSB SEA91LA083Accident · No injuriesLimited investigationFinal reportAeronca 11AC · Port Orchard, WAThe loss of engine power due to contaminated fuel system.NTSB ANC91LA051Accident · Serious injuriesLimited investigationFinal reportAeronca 11AC · Kahiltna Glac., AKA downdraft and the pilot's inadequate remedial action.NTSB ATL91LA058Accident · No injuriesLimited investigationFinal reportAeronca 11AC · Union Springs, ALThe pilot's failure to maintain directional control of the airplane during the landing roll, which resulted in an inadvertent ground swerve.NTSB ANC90FA052Accident · No injuriesField investigationFinal reportAeronca 11AC · Chugiak, AKFailure of the pilot to maintain directional control, which resulted in an inadvertent ground swerve. Factors related to the accident were: the crosswind and snow covered terrain beside the runway.NTSB CHI90LA058Accident · No injuriesLimited investigationFinal reportAeronca 11AC · Chillicothe, OHImproper planning/decision by the student pilot, which resulted in a landing on a slick runway, and his failure to maintain directional control during the landing, which resulted in his inability to maintain runway alignment. Contributing factors were: the…NTSB LAX90LA003Accident · No injuriesLimited investigationFinal reportAeronca 11AC · Penn Valley, CAFailure of the pilot to maintain directional control during the landing roll-out, which resulted in an inadvertent ground swerve. Uneven terrain beside the runway was a factor.NTSB FTW89FA091Accident · 2 fatalField investigationFinal reportAeronca 11AC · Paradise, TXLoss of engine power for an undetermined reason, and failure of the pilot to maintain sufficient airspeed during the forced landing, which resulted in an inadvertent stall.NTSB MIA89LA047Accident · Minor injuriesLimited investigationFinal reportAeronca 11AC · Tampa, FLThe plt stated that he failed to maintain directional control during landing in a crosswind. He further stated that he aggravated the loss of control by over-application of the controls and adding full throttle which led to the aircraft departing the rwy and…NTSB NYC89FA003Accident · Serious injuriesField investigationFinal reportAeronca 11AC · Barnstead, NHThe Aeronca 11AC was maneuvering downwind for landing. The pilot made a left turn towards the runway to tighten the pattern. While in close proximity to a house and the runway, at a low altitude the pilot elected to make a steep left 270 degree turn, opposite…NTSB BFO88LA074Accident · No injuriesLimited investigationFinal reportAeronca 11AC · Gaithersburg, MDThe pilot reported that the local winds were varying from 340 degrees to 360 degrees at 12 knots gusting to 20 knots. The pilot stated that he lost directional control due to gusty winds while on landing roll. The aircraft contacted a VASI light and then a…NTSB CHI88LA140Accident · No injuriesLimited investigationFinal reportPiper PA-28-180 · Portage, WIDuring taxi from landing the pilot failed to maintain adequate visual lookout and taxied onto a runway in front of an aircraft on its landing roll. The pilot stated that as he approached the other runway his visibility was restricted by a stand of trees, and…NTSB MKC88DCQ03Accident · Serious injuriesFinal reportAeronca 11AC · Ada, KSThe a/c contacted powerlines about 25 feet AGL, contacted a tree, broke another powerline, and then crashed into a pickup truck. No evidence of preimpact mechanical problems were found with either airframe or powerplant. A toxicological test of the pilot…NTSB LAX88LA092Accident · No injuriesLimited investigationFinal reportAeronca 11AC · Lakeport, CADuring ldg rollout the acft veered off the rwy, went into a ditch & collided with terrain causing substantial damage. The surface winds were estimated at only 5 KTS. The plt acknowledged that the accident might have been prevented if he had been less…NTSB NYC87LA151Accident · No injuriesLimited investigationFinal reportAeronca 11AC · Jeanette, PAThe plt put small chocks under the wheels, then began to hand prop the eng with no one at the controls. The eng started, & before the plt could reach the cockpit, the acft made svrl 360 deg turns & subsequently rolled into trees.NTSB MIA87LA149Accident · No injuriesLimited investigationFinal reportAeronca 11AC · Daytona Beach, FLPilot made a hard landing at which time the left main gear collapsed. The aircraft then ground looped and ran off the runway. Post crash examination of the left main gear revealed it collapsed when a support brace rusted through from the inside of the tube.…NTSB MKC87FA083Accident · Serious injuriesField investigationFinal reportAeronca 11AC · Stillwell, KSThe pilot stated that this flight was to be a photographic, pleasure trip involving two aircraft. After several aerial photos were taken of each other's aircraft, both airplanes landed at the accident airport. The PIC and his passenger then took-off while the…NTSB CHI87LA075Accident · No injuriesLimited investigationFinal reportAeronca 11AC · Dodgeville, WIWhile taxiing after landing on runway 12, a tailwind was encountered. The acft spun around, slid backwards off the rwy, down a steep embankment and struck a large rock. The plt reported winds from 270 degrees at 12 knots gusting to 18 knots.NTSB LAX86LA132Accident · No injuriesLimited investigationFinal reportAeronca 11-AC · Standfield, AZAn Aeronca chief collided with a telephone pole on landing roll on a dirt road after a forced landing due to fuel exhaustion. The pilot reported that he was delayed approximately 45 minutes awaiting takeoff clearance by ground control with the engine running.…NTSB ATL86LMG02Accident · Serious injuriesFinal reportAeronca 11AC · Wallace, NCThe acft collided with the terrain following a loss of control during initial takeoff climb. The plt reported that after clearing trees at an alt of aprx 200 ft the acft drifted to the right. The tail of the acft then rose pushing the nose down until the acft…NTSB ANC85LA161Accident · No injuriesLimited investigationFinal reportAeronca 11AC · Dillingham, AKThe pilot stated that approximately 200 ft into the rollout the right wing lifted into the air, veering the plane to the right losing directional control of the aircraft causing the aircraft to exit the runway into a gravel pit.NTSB MKC85FA031Accident · Serious injuriesField investigationFinal reportAeronca 11AC · Council Bluffs, IAThe plt stated that he had been practicing landings and then climbed the acft to 5000 ft above the arpt. He flew around for awhile to cool off the eng and then he shutdown it down to practice restarts. After the first restart the eng was shut down a second…NTSB NYC84FA310Accident · 2 fatalField investigationFinal reportAeronca 11AC · Newbury, MAThe student plt had logged approximately 240 hrs of flying time. He was not certificated to carry pax. Witnesses stated that they observed the acft descend at a slow airspeed to an alt of 100 ft. the acft then made a steep bank turn to the right and impacted…NTSB NYC83IA040Incident · No injuriesIncident investigationFinal reportAeronca 11AC · Monticello, NYAs the flight made a three point landing in strong, gusting, left crosswinds, a gust of wind lifted the aircraft's left wing. Directional control was lost and the aircraft departed the right side of the runway. It came to rest at the bottom of a grassy slope…NTSB ANC82DA077Accident · No injuriesFinal reportAeronca 11AC · Soldotna, AKThe student pilot was practicing takeoffs and landings. He stated that during a landing, the aircraft ground looped to the left, went off the runway and went into soft dirt. When the soft dirt was encountered, the landing gear and propeller were damage.NTSB NYC82FGT15Accident · 3 fatalFinal reportAeronca 11AC · Peach Bottom, PAThe non-certificated pilot took off with one passenger on board and with both doors removed. Witnesses observed the pilot make a number of passes near boats, under power lines and near people on the surface. A number of witnesses stated the passenger was…NTSB NYC82DHA08Accident · Serious injuriesFinal reportAeronca 11AC · Beach Lake, PAThe pilot of a ski equipped aircraft began taking off on a 900 ft strip. There was snow on the runway, but grass showed through in places. The pilot reported that the aircraft slowed "very very little" while crossing an area with grass showing. Just beyond…NTSB LAX82IA086Incident · Minor injuriesIncident investigationFinal reportAeronca 11AC · Weldon, CAPilot stated that while at cruise, the engine began running rough and a precautionary landing was executed. During the touchdown, the aircraft struck a bump disconnecting the steering springs. He then lost directional control, striking a tree and fence on the…NTSB ANC81DA115Accident · 2 fatalClosedAeronca 11AC · Haines, AKNTSB NYC81FGM11Accident · No injuriesClosedAeronca 11AC · Elizabeth, PANTSB ATL81FA035Accident · 2 fatalClosedAeronca 11AC · Maryville, TN