NTSB investigations, UT
221 cases where the phase of flight was Approach.
Cases per year
| 1964 | 5 |
|---|---|
| 1965 | 6 |
| 1966 | 6 |
| 1967 | 2 |
| 1968 | 4 |
| 1969 | 5 |
| 1970 | 3 |
| 1971 | 3 |
| 1972 | 4 |
| 1973 | 3 |
| 1974 | 5 |
| 1975 | 4 |
| 1976 | 11 |
| 1977 | 5 |
| 1978 | 6 |
| 1979 | 4 |
| 1980 | 3 |
| 1981 | 7 |
| 1982 | 3 |
| 1983 | 3 |
| 1984 | 4 |
| 1985 | 9 |
| 1986 | 8 |
| 1988 | 1 |
| 1989 | 4 |
| 1990 | 4 |
| 1991 | 3 |
| 1992 | 2 |
| 1993 | 3 |
| 1994 | 2 |
| 1995 | 1 |
| 1996 | 4 |
| 1997 | 7 |
| 1998 | 4 |
| 1999 | 6 |
| 2000 | 7 |
| 2001 | 5 |
| 2002 | 4 |
| 2003 | 3 |
| 2004 | 2 |
| 2005 | 2 |
| 2006 | 2 |
| 2007 | 6 |
| 2008 | 1 |
| 2009 | 3 |
| 2010 | 5 |
| 2011 | 4 |
| 2012 | 2 |
| 2013 | 1 |
| 2014 | 2 |
| 2017 | 3 |
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 3 |
| 2021 | 3 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 3 |
| 2026 | 2 |
Where
Latest cases
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.\"eventStateOrRegion\" = 'UT' AND c.\"eventCountry\" = 'USA'
AND c.\"mKey\" IN (SELECT case_mkey FROM case_phases WHERE main = 500)
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."eventStateOrRegion" = 'UT' AND c."eventCountry" = 'USA'
AND c."mKey" IN (SELECT case_mkey FROM case_phases WHERE main = 500)
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 WPR26LA211Accident · No injuriesClass 3 · LimitedPreliminary reportPiper PA-44-180T · St. George, UTOn June 7, 2026, about 1012 mountain standard time, a Piper PA-44-180T, N8390K, was substantially damaged when it was involved in an accident near St. George, Utah. The pilot and two passengers were not injured. The airplane was operated as a Title 14 Code of…NTSB WPR26LA079Accident · No injuriesClass 4 · LimitedFinal reportKubicek Factory S R O BB26M · La Verkin, UTThe pilot’s failure to maintain clearance from powerlines after an aborted landing attempt.NTSB WPR24LA254Accident · Serious injuriesClass 3 · LimitedFinal reportPiper PA-34-220T · Roy, UTThe flight instructor’s decision to shut down an engine on an extended leg of the airport traffic pattern, which led to a loss of performance and inability to maintain altitude.NTSB WPR24LA296Accident · No injuriesClass 3 · LimitedFinal reportCessna 182C · Vernal, UTThe pilot’s improper in-flight fuel management and delay in configuring the fuel selector for landing as recommended by the manufacturer, which resulted in fuel starvation and a total loss of engine power during the final approach to land.NTSB WPR24LA088Accident · Minor injuriesClass 3 · LimitedFinal reportPiper PA-32R-301T · Spanish Fork, UTThe pilot's failure to ensure proper placement of the fuel selector, which resulted in a total loss of engine power due to fuel starvation.NTSB WPR23LA278Accident · No injuriesClass 3 · LimitedFinal reportAerospatiale AS-355E Twin Star · Farmington, UTThe premature failure of one of the No. 2 engine compressor bleed valve, which resulted in a partial loss of power to that engine.NTSB WPR22LA358Accident · Minor injuriesClass 4 · LimitedFinal reportPiper PA-28RT-201 · South Jordan, UTThe pilot’s inability to see and avoid a bird while landing in dark night conditions.NTSB WPR21LA335Accident · No injuriesClass 4 · LimitedFinal reportCessna 560XL · Salt Lake City, UTThe airplane’s impact with birds during approach.NTSB WPR21LA320Accident · Serious injuriesClass 3 · LimitedFinal reportRobinson Helicopter R22 Beta · West Jordan, UTThe pilot receiving instruction’s improper application of forward cyclic in a low rotor rpm condition and the instructor’s delayed remediation, which resulted in an impact with terrain.NTSB WPR21LA176Accident · Minor injuriesClass 4 · LimitedFinal reportVans RV4 · Oljato-Monument Valley, UTThe pilot’s failure to maintain airplane control while compensating for a downdraft during landing, which resulted in the airplane touching down short of the runway on soft terrain and nosing over.NTSB WPR20LA196Accident · 2 fatalClass 3 · LimitedFinal reportKostrazewa Andre Sonex Light Sport · Centerville, UTThe pilot flying’s exceedance of the airplane’s critical angle of attack during an attempted forced landing, which resulted in an aerodynamic stall and impact with terrain. The reason for the attempted forced landing could not be determined.NTSB WPR20CA158Accident · No injuriesClass 4 · Data collectionFinal reportCessna P210 · Heber City, UTThe pilots failure to switch the fuel pump to the 'OFF' position during landing, resulting in a loss of engine power and subsequent collision with a fence during landing. Contributing to the accident was a modified before landing checklist which omitted the…NTSB WPR20FA065Accident · 1 fatalClass 3 · FieldFinal reportCessna T310 · Roy, UTThe pilot’s inadequate preflight fuel planning and fuel management, which resulted in a total loss of power to the left engine due to fuel exhaustion. Also causal was the pilot's failure to follow the one-engine inoperative checklist and maintain the…NTSB WPR19LA065Accident · No injuriesClass 3 · LimitedFinal reportPiper PA28 · Salt Lake City, UTA partial loss of engine power due to the mechanic’s failure to properly secure the throttle lever locking nut and cotter pin.NTSB WPR18TA212Accident · Minor injuriesFinal reportICP Savannah · Fairfield, UTThe pilot's failure to maintain airplane control after encountering a downdraft on approach to the runway.NTSB WPR17LA157Accident · No injuriesClass 3 · LimitedFinal reportCirrus Design SR22 · Ogden, UTThe failure of the No. 4 cylinder exhaust valve head, which resulted in a total loss of engine power due to oil starvation.NTSB GAA17CA327Accident · No injuriesData collectionFinal reportCessna 172 · Tooele, UTThe student pilot’s failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle of attack during an attempted go-around, which resulted in an aerodynamic stall.NTSB GAA17CA207Accident · No injuriesData collectionFinal reportCessna 550 · Salt Lake City, UTAn in-flight collision with a goose during approach.NTSB WPR15CA040Accident · Minor injuriesData collectionFinal reportAerospatiale AS350BA · Panguitch, UTThe flight instructor's delayed reaction in taking control of the helicopter during a student pilot's loss of control while landing.NTSB WPR14LA263Accident · 1 fatalLimited investigationFinal reportKnell ASC Spirit · Lehi, UTThe pilot’s exceedance of the glider’s critical angle of attack while maneuvering in a steep turn at low altitude, which resulted in an aerodynamic stall.NTSB WPR13CA170Accident · No injuriesData collectionFinal reportDiamond DA 20-C1 · Provo, UTThe student pilot’s failure to maintain airspeed and airplane control during an attempted go-around.NTSB WPR12FA378Accident · 2 fatalField investigationFinal reportAircraft Mfg & Development CH 2000 · Nephi, UTThe pilot's inability to maintain airplane control due to an encounter with a microburst/downdraft that exceeded the climb performance capabilities of the airplane.NTSB WPR12LA214Accident · Serious injuriesLimited investigationFinal reportMarley Kolb Firestar II · Cedar Fort, UTThe pilot's failure to maintain airplane control while on approach for landing in gusting wind conditions.NTSB WPR11FA450Accident · 1 fatalField investigationFinal reportCone James A RV-6A · West Jordan, UTThe pilot’s execution of an abrupt maneuver, likely to avoid birds, which resulted in a stall and spin.NTSB WPR11LA315Accident · No injuriesLimited investigationFinal reportBeech V35B · Oljato, UTThe pilot’s failure to follow the airplane manufacturer’s mixture setting guidance while landing in high density altitude conditions.NTSB WPR11FA242Accident · 4 fatalField investigationFinal reportCessna 172R · Wendover, UTThe pilot did not maintain adequate airspeed during the downwind turn resulting in an aerodynamic stall, in-flight loss of control, and spin. Contributing to the accident was the pilot’s inadequate preflight planning and exceedance of the approved weight and…NTSB WPR11CA189Accident · Minor injuriesData collectionFinal reportRobinson Helicopter R22 Beta · Salt Lake City, UTThe student pilot's inadvertent action of pulling out the engine's mixture control lever to idle cutoff that resulted in a complete loss of engine power.NTSB WPR11FA073Accident · Serious injuriesField investigationFinal reportCessna T210M · Ogden, UTThe pilot did not maintain clearance from obstacles after descending below the published approach decision height when visibility was less than published approach minimums due to heavy ground fog and he did not execute a missed approach after failing to…NTSB WPR10LA395Accident · No injuriesLimited investigationFinal reportEmbraer EMB-145XR · Salt Lake City, UTAn in-flight collision with a bird while on the downwind leg of the traffic pattern during a visual approach.NTSB WPR10CA355Accident · No injuriesData collectionFinal reportLeonard Trudy Kitfox III · Monument Valley, UTThe pilot's inadequate compensation for the wind effects and failure to maintain directional control during an attempted go-around from a landing.NTSB WPR10LA202Accident · No injuriesLimited investigationFinal reportCostruzioni AeronauticheTecnam P2002 Sierra · Tooele, UTA total loss of engine power for undetermined reasons.NTSB WPR10CA146Accident · No injuriesData collectionFinal reportDiamond Aircraft Ind DA 20-C1 · Delta, UTThe student pilot's incorrect use of the flaps and failure to attain and maintain an adequate airspeed during the attempted go-around procedure, which led to a stall/mush condition. Contributing to the accident was the student pilot's lack of familiarity with…NTSB WPR10CA084Accident · No injuriesData collectionFinal reportGolden Circle Tierra I · Jensen, UTA loss of engine power, as reported by the pilot, for undetermined reasons.NTSB WPR10LA034Accident · No injuriesLimited investigationFinal reportAero Commander 690 · Cedar City, UTThe failure of the landing gear accumulator/regulator and the installation of the improper priority valve, which precluded the landing gear from extending and locking into place.NTSB WPR09CA469Accident · No injuriesData collectionFinal reportCessna 182 · Parowan, UTThe pilot's improper flare and recovery from a bounced landing.NTSB LAX08CA138Accident · Serious injuriesData collectionFinal reportSchweizer 300C · Ogden, UTThe pilot under instruction's encounter with a settling with power condition, and the flight instructor's failure to maintain adequate rotor rpm during the subsequent go-around. Also causal was the instructor pilot's delayed remedial action during the…NTSB SEA07LA276Accident · No injuriesLimited investigationFinal reportWerner Vari-Eze · Tooele, UTThe loss of engine power for an undetermined reason. Contributing factors were the lack of suitable terrain for the forced landing and the wind shear conditions encountered during the forced landing attempt.NTSB SEA07LA250Accident · Serious injuriesLimited investigationFinal reportSchweizer SGS 2-33 · Morgan, UTThe pilot's failure to maintain control of the glider while maneuvering on final approach to landing, which resulted in an collision with a tree. A factor was the wind gust.NTSB SEA07FA240Accident · Serious injuriesField investigationFinal reportFlight Design Ctsw · St. George, UTThe loss of engine power during approach for an undetermined reason. Contributing to the accident was the lack of suitable terrain for the forced landing.NTSB LAX07LA257Accident · Serious injuriesLimited investigationFinal reportSchempp-Hirth Standard Cirrus · Heber, UTThe pilot's failure to maintain sufficient airspeed during landing, resulting in an inadvertent stall/spin, undershoot and collision with the ground.NTSB SEA07LA177Accident · 2 fatalLimited investigationFinal reportMooney M20C · Price, UTThe pilot's failure to maintain clearance from power transmission lines while on a night straight-in visual flight rules approach. Factors include a power transmission line about one and three-tenths mile off the approach end of the runway, and the pilot's…NTSB SEA07CA128Accident · No injuriesData collectionFinal reportForney F-1 · Morgan, UTThe pilot's failure to maintain clearance of the hill on final approach to a landing. Contributing factors were the downdraft weather condition, the hilly terrain, and his lack of familiarity with the geographical area.NTSB SEA06CA173Accident · No injuriesData collectionFinal reportCessna 182RG · Fairfield, UTThe failure of the pilot-rated-passenger to maintain adequate airspeed on final during a simulated engine-out approach, resulting in the aircraft descending into the terrain about 40 feet short of the runway, and the failure of the pilot-in-command to take…NTSB SEA06FA116Accident · 3 fatalField investigationFinal reportLciv Lancair IV-P Propjet · Provo, UTThe pilot's failure to maintain altitude/clearance during a VFR approach, which resulted in an in-flight collision with water. Contributing factors were the dark night light conditions and the low clouds.NTSB SEA06CA017Accident · No injuriesData collectionFinal reportCessna T210M · Salt Lake City, UTA loss of engine power due to fuel starvation as a result of the pilot's improper in-flight decision not to use the before landing checklist. A factor which contributed to the accident was the improper position of the mixture control.NTSB DEN05LA106Accident · Serious injuriesLimited investigationFinal reportClarke YAK 3UR 2000 · Heber City, UTloss of engine power due to a leaking carburetor and an inoperative float, and the pilot's failure to maintain aircraft control during the restart attempt. Contributing factors were the sudden engine power surge during the attempted restart, and unsuitable…NTSB DEN05LA019Accident · Serious injuriesLimited investigationFinal reportPiper PA-24-250 · Ogden, UTthe loss of engine power due to carburetor icing. Contributing factors include the weather conditions conducive for carburetor icing, and a lack of suitable terrain for a forced landing.NTSB DEN04LA142Accident · Minor injuriesLimited investigationFinal reportRobinson R22 · Spanish Fork, UTthe instructor's premature flare, resulting in a hard landing, and his failure to align the helicopter with the direction of travel, resulting in a rollover.Contributing factors were the low rotor RPM and inadequate airspeed. The reason for the loss of engine…NTSB DEN03LA085Accident · No injuriesLimited investigationFinal reportRobinson R22 Beta · West Jordan, UTThe loss of power for undetermined reasons. Also causal was the student's failure to maintain aircraft control and the instructor's inadequate supervision. The instructor's delayed remedial action as a contributing factor.NTSB DEN03FA068Accident · 3 fatalField investigationFinal reportCessna 310D · Provo, UTfailure of the student to maintain aircraft control. Contributing factors were the instructor's inattention to the fuel supply, fuel exhaustion, an inadvertent stall/spin during the turn from base leg to final approach. and the instructor's inadequate…