NTSB investigations
18,849 cases where the phase of flight was Maneuvering.
Cases, newest first
Query with SQL
duckdb -csv -c "WITH phase_names(main, name) AS (VALUES (100, 'Prior to flight'), (150, 'Standing'), (200, 'Pushback/towing'), (250, 'Taxi'), (300, 'Takeoff'), (350, 'Initial climb'), (400, 'Enroute'), (450, 'Maneuvering'), (500, 'Approach'), (550, 'Landing'), (600, 'Emergency descent'), (650, 'Uncontrolled descent'), (700, 'Post-impact'), (750, 'After landing'), (800, 'Other'), (990, 'Unknown')),
crosswalk(code, main, name) AS (VALUES (500, 150, 'Standing'), (501, 150, 'Standing - pre-flight'), (502, 150, 'Standing - starting engine(s)'), (503, 150, 'Standing - engine(s) operating'), (504, 150, 'Standing - engine(s) not operating'), (505, 150, 'Standing - idling rotors'), (510, 250, 'Taxi'), (511, 200, 'Taxi - pushback/tow'), (512, 250, 'Taxi - to takeoff'), (513, 250, 'Taxi - from landing'), (514, 250, 'Taxi - aerial'), (520, 300, 'Takeoff'), (521, 300, 'Takeoff - roll/run'), (522, 350, 'Takeoff - initial climb'), (523, 300, 'Takeoff - aborted'), (530, 400, 'Climb'), (531, 400, 'Climb - to cruise'), (540, 400, 'Cruise'), (541, 400, 'Cruise - normal'), (542, 400, 'Maneuvering - holding (IFR)'), (550, 400, 'Descent'), (551, 400, 'Descent - normal'), (552, 600, 'Descent - emergency'), (553, 650, 'Descent - uncontrolled'), (560, 500, 'Approach'), (561, 500, 'Approach - VFR pattern - downwind'), (562, 500, 'Approach - VFR pattern - base turn'), (563, 500, 'Approach - VFR pattern - base leg/base to final'), (564, 500, 'Approach - VFR pattern - final approach'), (565, 500, 'Go-around (VFR)'), (566, 500, 'Approach - IAF to FAF/outer marker (IFR)'), (567, 500, 'Approach - FAF/outer marker to threshold (IFR)'), (568, 500, 'Circling (IFR)'), (569, 500, 'Missed approach (IFR)'), (570, 550, 'Landing'), (571, 550, 'Landing - flare/touchdown'), (572, 550, 'Landing - roll'), (573, 550, 'Landing - aborted'), (574, 550, 'Emergency landing'), (575, 550, 'Emergency landing after takeoff'), (576, 600, 'Emergency descent/landing'), (580, 450, 'Maneuvering'), (581, 450, 'Maneuvering - aerial application'), (582, 450, 'Maneuvering - turn to reverse direction'), (583, 450, 'Maneuvering - turn to landing area (emergency)'), (590, 450, 'Hover'), (591, 450, 'Hover - in ground effect'), (592, 450, 'Hover - out of ground effect'), (600, 800, 'Other'), (610, 990, 'Unknown')),
current_codes AS (
SELECT e.case_mkey, TRY_CAST(e.\"tier1Number\" AS INTEGER) AS code,
row_number() OVER (PARTITION BY e.case_mkey ORDER BY coalesce(e.\"isDefiningEvent\", false) DESC, e.position) AS n
FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e
WHERE e.aircrafts_position = 1 AND e.\"tier1Number\" GLOB '[1-9][0-9]*'
AND (e.\"isDefiningEvent\" OR e.case_mkey IN (SELECT \"mKey\" FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' WHERE \"isPre1982\"))
),
phases AS (
SELECT case_mkey, 'current' AS scheme, code, CASE WHEN code >= 990 THEN 990 ELSE code // 50 * 50 END AS main
FROM current_codes WHERE n = 1
UNION ALL
SELECT o.case_mkey, 'older', o.\"phaseOfFlightCode\", w.main
FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o JOIN crosswalk w ON w.code = o.\"phaseOfFlightCode\"
WHERE o.aircrafts_position = 1 AND o.\"occurrenceNumber\" = 1 AND o.case_mkey NOT IN (SELECT case_mkey FROM current_codes)
),
case_phases AS (
SELECT p.*, c.\"eventDate\", c.\"highestInjuryLevel\" = 'Fatal' AS fatal, a.aircraft_model_code
FROM phases p JOIN 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c ON c.\"mKey\" = p.case_mkey
LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = p.case_mkey AND a.position = 1
WHERE c.\"eventDate\" >= DATE '1962-01-01' AND p.main IN (SELECT main FROM phase_names)
)
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 case_mkey FROM case_phases WHERE main = 450)
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.
WITH phase_names(main, name) AS (VALUES (100, 'Prior to flight'), (150, 'Standing'), (200, 'Pushback/towing'), (250, 'Taxi'), (300, 'Takeoff'), (350, 'Initial climb'), (400, 'Enroute'), (450, 'Maneuvering'), (500, 'Approach'), (550, 'Landing'), (600, 'Emergency descent'), (650, 'Uncontrolled descent'), (700, 'Post-impact'), (750, 'After landing'), (800, 'Other'), (990, 'Unknown')),
crosswalk(code, main, name) AS (VALUES (500, 150, 'Standing'), (501, 150, 'Standing - pre-flight'), (502, 150, 'Standing - starting engine(s)'), (503, 150, 'Standing - engine(s) operating'), (504, 150, 'Standing - engine(s) not operating'), (505, 150, 'Standing - idling rotors'), (510, 250, 'Taxi'), (511, 200, 'Taxi - pushback/tow'), (512, 250, 'Taxi - to takeoff'), (513, 250, 'Taxi - from landing'), (514, 250, 'Taxi - aerial'), (520, 300, 'Takeoff'), (521, 300, 'Takeoff - roll/run'), (522, 350, 'Takeoff - initial climb'), (523, 300, 'Takeoff - aborted'), (530, 400, 'Climb'), (531, 400, 'Climb - to cruise'), (540, 400, 'Cruise'), (541, 400, 'Cruise - normal'), (542, 400, 'Maneuvering - holding (IFR)'), (550, 400, 'Descent'), (551, 400, 'Descent - normal'), (552, 600, 'Descent - emergency'), (553, 650, 'Descent - uncontrolled'), (560, 500, 'Approach'), (561, 500, 'Approach - VFR pattern - downwind'), (562, 500, 'Approach - VFR pattern - base turn'), (563, 500, 'Approach - VFR pattern - base leg/base to final'), (564, 500, 'Approach - VFR pattern - final approach'), (565, 500, 'Go-around (VFR)'), (566, 500, 'Approach - IAF to FAF/outer marker (IFR)'), (567, 500, 'Approach - FAF/outer marker to threshold (IFR)'), (568, 500, 'Circling (IFR)'), (569, 500, 'Missed approach (IFR)'), (570, 550, 'Landing'), (571, 550, 'Landing - flare/touchdown'), (572, 550, 'Landing - roll'), (573, 550, 'Landing - aborted'), (574, 550, 'Emergency landing'), (575, 550, 'Emergency landing after takeoff'), (576, 600, 'Emergency descent/landing'), (580, 450, 'Maneuvering'), (581, 450, 'Maneuvering - aerial application'), (582, 450, 'Maneuvering - turn to reverse direction'), (583, 450, 'Maneuvering - turn to landing area (emergency)'), (590, 450, 'Hover'), (591, 450, 'Hover - in ground effect'), (592, 450, 'Hover - out of ground effect'), (600, 800, 'Other'), (610, 990, 'Unknown')),
current_codes AS (
SELECT e.case_mkey, TRY_CAST(e."tier1Number" AS INTEGER) AS code,
row_number() OVER (PARTITION BY e.case_mkey ORDER BY coalesce(e."isDefiningEvent", false) DESC, e.position) AS n
FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e
WHERE e.aircrafts_position = 1 AND e."tier1Number" GLOB '[1-9][0-9]*'
AND (e."isDefiningEvent" OR e.case_mkey IN (SELECT "mKey" FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' WHERE "isPre1982"))
),
phases AS (
SELECT case_mkey, 'current' AS scheme, code, CASE WHEN code >= 990 THEN 990 ELSE code // 50 * 50 END AS main
FROM current_codes WHERE n = 1
UNION ALL
SELECT o.case_mkey, 'older', o."phaseOfFlightCode", w.main
FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o JOIN crosswalk w ON w.code = o."phaseOfFlightCode"
WHERE o.aircrafts_position = 1 AND o."occurrenceNumber" = 1 AND o.case_mkey NOT IN (SELECT case_mkey FROM current_codes)
),
case_phases AS (
SELECT p.*, c."eventDate", c."highestInjuryLevel" = 'Fatal' AS fatal, a.aircraft_model_code
FROM phases p JOIN 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c ON c."mKey" = p.case_mkey
LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = p.case_mkey AND a.position = 1
WHERE c."eventDate" >= DATE '1962-01-01' AND p.main IN (SELECT main FROM phase_names)
)
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 case_mkey FROM case_phases WHERE main = 450)
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 WPR15WA211Accident · 1 fatalForeign investigationAmature Built Pitts · Maitland, Australia, AustraliaOn July 8, 2015, at 1641 local time, an amateur built Pitts 12, VH-JDZ, collided with terrain near Maitland, Australia and was destroyed by postimpact fire. The pilot, the sole occupant, was fatally injured. The airplane was being operated under the pertinent…NTSB CEN15LA303Accident · No injuriesLimited investigationFinal reportAviat A-1C-180 · Cincinnati, OHThe pilot’s inadequate preflight inspection and fuel planning, which resulted in a loss of engine power due to fuel exhaustion.NTSB CEN15CA293Accident · Serious injuriesData collectionFinal reportCessna A188B · Crawfordsville, INThe pilot's failure to maintain clearance from the powerline during an aerial application operations.NTSB CEN15FA291Accident · 2 fatalField investigationFinal reportChampion 7BCM · Portland, TXThe pilot’s ostentatious low-altitude aerobatic display, which resulted in an aerodynamic stall/spin when he exceeded the airplane’s critical angle of attack. Contributing to the accident was the pilot’s impairment due to alcohol and drugs.NTSB CEN15CA312Accident · No injuriesData collectionFinal reportEurocopter EC 130 B4 · Somerset, COThe pilot's decision to fly at a low altitude when he was aware that there were wires in the area which resulted in the helicopter contacting a wire.NTSB GAA15CA196Accident · No injuriesData collectionFinal reportRobinson Helicopter R44 II · Forest City, SDThe pilot's failure to monitor the flight environment for adequate terrain/obstacle clearance during takeoff, which resulted in the inflight collision with power transmission line wires.NTSB WPR15FA204Accident · 2 fatalField investigationFinal reportHughes 269C · Asotin, WAThe pilot's failure to maintain adequate clearance from power lines while maneuvering in a canyon.NTSB WPR15FA200Accident · 1 fatalField investigationFinal reportManiscalco Great Lakes · Corona, CAThe pilot's failure to maintain adequate airspeed and his exceedance of the airplane's critical angle-of-attack while maneuvering, which resulted in a stall/spin at too low an altitude to allow recovery. Contributing to the accident was the pilot's improper…NTSB CEN15LA297Accident · Serious injuriesLimited investigationFinal reportPiper PA 25-235 · Galveston, TXThe loss of engine power due to a failure of a crankshaft idler gear shaft.NTSB CEN15FA282Accident · 1 fatalField investigationFinal reportChristen Industries Pitts S-2B · Cameron, MOThe pilot’s failure to maintain airplane control during a low-level aerobatic flight maneuver.NTSB GAA15CA154Accident · No injuriesData collectionFinal reportRobinson Helicopter R22 Beta · Eagle Lake, TXThe pilot's failure to secure the iPad during flight, resulting in an inadvertent cyclic input, and collision with terrain.NTSB GAA15CA141Accident · No injuriesData collectionFinal reportSchweizer SGS 2 32 · Middlefield, OHThe student pilot's incorrect pitch and roll rate control inputs which resulted in an aerodynamic stall and incipient spin at a low altitude.NTSB WPR15FA195Accident · 1 fatalField investigationFinal reportShort Brothers S312 Tucano T MK1 · Maricopa, CAThe pilot's failure to maintain clearance from terrain during low-level airwork, which resulted in uncontrolled collision with terrain. Contributing to the accident was the pilot's impairment from the combined effects of butalbital and codeine.NTSB CEN15LA285Accident · No injuriesLimited investigationFinal reportRobinson Helicopter R44 II · Danville, ARThe loss of engine power for reasons that could not be determined based on the available information.NTSB WPR15LA193Accident · 1 fatalLimited investigationFinal reportBell 47G 5 · Salinas, CAThe 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 accident was the pilot's impairment by high-dose opioid use.NTSB WPR15LA185Accident · No injuriesLimited investigationFinal reportCessna 182A · Moab, UTThe pilot’s inadequate preflight fuel planning and inflight fuel management, which resulted in a total loss of engine power due to fuel exhaustion.NTSB CEN15LA272Accident · Serious injuriesLimited investigationFinal reportWeatherly 620A · Van Horn, TXThe loss of engine power for reasons that could not be determined based on the available information.NTSB CEN15LA271Accident · Minor injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G 164B · Foster, NEThe total loss of engine power during a low-level aerial application flight due to fuel exhaustion following the pilot’s inadequate preflight inspection that led to his assumption that sufficient fuel was on board for the flight based on his reliance on a…NTSB GAA15CA109Accident · Minor injuriesData collectionFinal reportKretsinger Bensen B8M · Maple Plain, MNThe pilot's failure to maintain airspeed, resulting in a loss of control, and a collision with terrain.NTSB CEN15WA260Accident · 2 fatalForeign investigationVans RV-7A · Zagreb, CroatiaOn June 7, 2015, at 1430 coordinated universal time, a Van's Aircraft RV-7A, Croatian registered 9A-DVM, owned and piloted by the accident pilot, was destroyed when it impacted terrain near Zagreb, Croatia. Visual meteorological conditions prevailed at the…NTSB ERA15WA246Accident · 1 fatalForeign investigationPiper PA-25-235 · Patrocínio Municipality,Minas Gerais, BrazilOn June 5, 2015, about 1506 universal coordinated time, Piper PA-25-235, Brazilian registration PR-ACH, was substantially damaged by collision with terrain while maneuvering at low altitude in Patrocinio Municipality, Minas Gerais, Brazil. The Brazilian…NTSB CEN15FA255Accident · 2 fatalField investigationFinal reportCub Crafters CC18-180 · Raton, NMThe pilot's failure to maintain adequate airspeed while maneuvering at a low altitude, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall.NTSB ERA15WA235Accident · 1 fatalForeign investigationCessna A188 · Puerto Gaitan, ColombiaOn June 4, 2015, about 1715 coordinated universal time, a Cessna A188, Colombian registration HK-1364, was substantially damaged when it impacted power lines and then terrain during an aerial application flight near Puerto Gaitan, Colombia. The commercial…NTSB WPR15LA176Accident · 1 fatalLimited investigationFinal reportAyres S2R T34 · Blythe, CAThe pilot's failure to maintain adequate airspeed while maneuvering, which resulted in the airplane exceeding its critical angle-of-attack and experiencing an aerodynamic stall.NTSB WPR15FA174Accident · 1 fatalField investigationFinal reportPiper PA 22-135 · Livermore, CAA loss of control for reasons that could not be determined, because examination of the airframe and engine revealed no anomalies that would have precluded normal operation.NTSB CEN15FA249Accident · 2 fatalField investigationFinal reportMonnett John T JR Sonex SA · Oshkosh, WIThe pilot's failure to maintain sufficient airspeed following a loss of engine power during initial takeoff climb, which resulted in the airplane's wing exceeding its critical angle-of-attack and a subsequent aerodynamic stall. The reason for the loss of…NTSB ANC15LA034Accident · Minor injuriesLimited investigationFinal reportPiper PA 22 · Skwentna, AKThe pilot's failure to follow the airplane's operating limitations by rapidly opening the throttle, which resulted in a loss of engine power. Contributing to the accident was the pilot's decision to maneuver the airplane at low altitude even though he was not…NTSB WPR15LA178Accident · No injuriesLimited investigationFinal reportGarlick Helicopters UH 1H · Cove, ORThe failure of the engine-to-transmission drive shaft coupling assembly due to a fatigue fracture of one of its attachment bolts, which resulted in a loss of power to the main rotor.NTSB GAA15LA101Accident · Serious injuriesLimited investigationFinal reportAir Tractor AT 502B · Archer City, TXThe pilot’s failure to maintain adequate clearance from power transmission lines during an aerial application flight.NTSB ERA15WA233Accident · 1 fatalForeign investigationVans RV8 · Corropoli, ItalyOn May 31, 2015, about 1430 universal coordinated time, a Vans RV8, I-LOVI, and a Vans RV7, I-AMEL, were destroyed after colliding midair and then subsequently colliding with the Adriatic Sea, near Corropoli, Italy. The Italian certificated pilot of the RV8…NTSB WPR15LA170Accident · Serious injuriesLimited investigationFinal reportDuenas Pulsar III · Hurricane, UTAn elevated oil temperature and subsequent total loss of engine power for reasons that could not be determined based on the available information.NTSB GAA15CA102Accident · No injuriesData collectionFinal reportBell 206 - B11 · Caledonia, MIA loss of tail rotor effectiveness while maneuvering at low altitude, resulting in a collision with trees.NTSB WPR15WA172Accident · 1 fatalForeign investigationRobinson R22 - Beta · Mitchell, AustraliaOn May 28, 2015 about 1620 local time, a Robinson R-22 helicopter, Australian registration VH-HRW, collided with terrain near Mitchell, Queensland, Australia. The helicopter sustained substantial damage, and the pilot was fatally injured. The investigation is…NTSB WPR15LA168Accident · 1 fatalLimited investigationFinal reportHiller UH 12E · Wasco, CAAn in-flight impact with terrain for reasons that could not be determined based on available evidence.NTSB GAA15CA089Accident · No injuriesData collectionFinal reportCessna 188 · Polson, MTThe pilot's failure to maintain airplane pitch, power, and turn coordination while maneuvering at low altitude, resulting in an aerodynamic stall and a collision with terrain.NTSB CEN15LA241Accident · No injuriesLimited investigationFinal reportGarratt Mansfield W IV-P · Hamilton, TXThe pilot’s decision to continue flight into known severe thunderstorm conditions, which resulted in the loss of engine power during the descent due to the engine’s ingestion of water and ice and a subsequent forced landing.NTSB CEN15FA240Accident · 1 fatalField investigationFinal reportYakovlev YAK 52 · Syracuse, KSThe pilot’s failure to maintain airplane control while maneuvering at low altitude, which resulted in the airplane’s wing exceeding its critical angle-of-attack and a subsequent aerodynamic stall .NTSB ERA15FA220Accident · 1 fatalField investigationFinal reportGulfstream American AA-5A · Rowdy, KYThe noninstrument-rated pilot’s decision to continue visual flight rules flight in instrument meteorological conditions, which resulted in a loss of control due to spatial disorientation.NTSB CEN15WA390Accident · 2 fatalForeign investigationAvions Robin DR400 · Arras, FranceOn May 21, 2015 about 1245 UTC, a Robin DR400-140B airplane, French registration F-GBUP, impacted into a cultivated field near the Arras-Roclincourt Airport (LFQD), Arras, France. One pilot and a passenger were killed. Another pilot was seriously injured. The…NTSB GAA15CA081Accident · Serious injuriesData collectionFinal reportCitabria 7GCBC · Winnsboro, SCThe pilot's execution of a steep left turn at low altitude during an aborted landing, which resulted in an aerodynamic stall, and a collision with terrain.NTSB ERA15LA218Accident · No injuriesLimited investigationFinal reportBell 206L-3 · Kearny, NJThe deliberate concealment and reuse of an unairworthy tail rotor driveshaft by unknown personnel, which resulted in an overstress separation at a bonded flange adapter as a result of driveshaft imbalance.NTSB WPR15FA161Accident · 1 fatalField investigationFinal reportBellanca 7GCBC · Juntura, ORThe pilot's failure to see and avoid power lines while intentionally maneuvering at low altitude for the aerial observation flight.NTSB ERA15WA213Accident · 2 fatalForeign investigationCessna 182 · Bajo Hondo, ArgentinaOn May 13, 2015, about 1835 coordinated universal time (UTC), a Cessna 182, Argentine registration LV-CXM, impacted power lines while maneuvering during an aerial survey flight near Bajo Hondo, Argentina. The pilot and passenger were fatally injured, and the…NTSB CEN15LA231Accident · No injuriesLimited investigationFinal reportRobinson Helicopter R44 II · Columbia, ILA total loss of engine power while maneuvering at low altitude for reasons that could not be determined during postaccident examination.NTSB CEN15LA238Accident · No injuriesLimited investigationFinal reportPiper PA-25-235 · Omega, OKImproper base metal preparation or contamination of the No. 5 cylinder wall before it was coated, which resulted in the coating peeling off of the cylinder wall and contaminating the engine oil and the subsequent partial loss of engine power.NTSB WPR15LA159Accident · Minor injuriesLimited investigationFinal reportGarlick UH-1B · Kettle Falls, WAA total loss of engine power due to foreign object (towel) ingestion. Contributing to the accident was maintenance personnel’s inadequate postmaintenance inspection of the engine.NTSB ERA15WA216Accident · 1 fatalForeign investigationThrush S2R-T34 · Puebloviejo, EcuadorOn May 5, 2015, a Thrush Aircraft, Inc., S2R-T34, Ecuador registration HC-CBY, registered to and operated by Aerovic C.A., collided with terrain near Puebloviejo, Ecuador. Meteorological conditions and flight plan information are unknown for the flight from…NTSB CEN15LA222Accident · 1 fatalLimited investigationFinal reportAir Tractor AT 502B · Basile, LAThe pilot’ failure to maintain adequate clearance from trees while maneuvering during an aerial application flight.NTSB CEN15CA218Accident · Minor injuriesData collectionFinal reportSchmidt Donald L GS1 Glastar · Moriarty, NMThe inadvertent encounter with a microburst while maneuvering near mountainous terrain, which resulted in a off airport landing and impact with terrain.NTSB CEN15LA235Accident · Serious injuriesLimited investigationFinal reportLathrop Steven A B8M · Ravenna, MIA total loss of engine power due to carburetor icing.