Final NTSB investigations, ND
154 cases where the phase of flight was Enroute.
Cases per year
| 1964 | 1 |
|---|---|
| 1965 | 4 |
| 1966 | 5 |
| 1967 | 2 |
| 1968 | 6 |
| 1969 | 6 |
| 1970 | 5 |
| 1971 | 4 |
| 1972 | 4 |
| 1973 | 4 |
| 1974 | 4 |
| 1975 | 4 |
| 1976 | 2 |
| 1977 | 3 |
| 1978 | 3 |
| 1979 | 4 |
| 1980 | 2 |
| 1981 | 7 |
| 1982 | 6 |
| 1983 | 5 |
| 1984 | 6 |
| 1985 | 1 |
| 1986 | 3 |
| 1987 | 5 |
| 1988 | 3 |
| 1989 | 1 |
| 1990 | 3 |
| 1991 | 1 |
| 1992 | 2 |
| 1993 | 4 |
| 1994 | 4 |
| 1995 | 5 |
| 1996 | 6 |
| 1997 | 3 |
| 1998 | 3 |
| 1999 | 3 |
| 2000 | 1 |
| 2001 | 1 |
| 2004 | 1 |
| 2005 | 1 |
| 2006 | 2 |
| 2007 | 1 |
| 2008 | 2 |
| 2010 | 1 |
| 2011 | 1 |
| 2012 | 1 |
| 2013 | 1 |
| 2014 | 1 |
| 2015 | 3 |
| 2018 | 2 |
| 2021 | 1 |
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\" = 'ND' AND c.\"eventCountry\" = 'USA'
AND c.\"completionStatus\" = 'Completed'
AND c.\"mKey\" IN (SELECT case_mkey FROM case_phases WHERE main = 400)
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" = 'ND' AND c."eventCountry" = 'USA'
AND c."completionStatus" = 'Completed'
AND c."mKey" IN (SELECT case_mkey FROM case_phases WHERE main = 400)
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 CEN22FA017Accident · 1 fatalClass 3 · FieldFinal reportPiper PA-28-181 · Buxton, NDThe pilot’s intentional flight into terrain as an act of suicide.NTSB CEN18LA334Accident · No injuriesClass 3 · LimitedFinal reportSchweizer 269C · Kindred, NDThe pilot’s failure to adequately inspect the lower coupling driveshaft during his preflight inspection and his non-compliance with an applicable airworthiness directive, which resulted in the failure of the forward drive splines of the lower coupling…NTSB CEN18LA097Accident · No injuriesLimited investigationFinal reportPiper PA 24-260 · Fargo, NDThe pilot's failure to use the published emergency procedures to manually extend the landing gear when an electrical failure precluded normal extension of the landing gear, resulting in the gear collapse during landing. Contributing to the accident was the…NTSB CEN16LA012Accident · No injuriesLimited investigationFinal reportRefling RV8 · Bottineau, NDThe pilot/builder’s failure to ensure that the fuel line was properly secured, which resulted in fuel starvation and the subsequent total loss of engine power.NTSB CEN15LA383Accident · No injuriesLimited investigationFinal reportPiper PA 25-235 · Harvey, NDThe partial loss of engine power due to a failed magneto and two cylinders with low compression. Contributing to the accident was the pilot/owner’s decision to operate the airplane with an ongoing engine issue.NTSB GAA15CA090Accident · Minor injuriesData collectionFinal reportPiper PA 25-260 · Casselton, NDThe pilot's failure to monitor the flight environment for adequate terrain/obstacle clearance, which resulted in the inflight collision with power transmission line wires.NTSB CEN14FA400Accident · 1 fatalField investigationFinal reportLarry Ketterling FEW P-51 Mustang · Lisbon, NDThe partial loss of engine power for a reason that could not be determined because of extensive impact and postcrash fire damage, and the pilot's failure to maintain adequate airspeed, which resulted in the airplane's wing exceeding its critical…NTSB CEN14LA074Accident · Serious injuriesLimited investigationFinal reportPiper PA 28-181 · Rock Lake, NDThe noninstrument-rated pilot’s failure to obtain weather briefings immediately before and during the flight and his continued flight into icing conditions, which resulted in the airplane’s loss of performance and the subsequent controlled descent into trees…NTSB CEN12LA587Accident · No injuriesLimited investigationFinal reportAviat A-1 · Rolla, NDThe pilot's failure to secure the right wing's fuel cap before the flight and to properly manage the available fuel supply during the flight, which resulted in a loss of engine power due to fuel exhaustion.NTSB CEN11LA598Accident · No injuriesLimited investigationFinal reportAir Tractor AT-301 · Edgeley, NDThe loss of engine power for reasons that could not be determined because postaccident examination of the airplane and engine did not reveal any anomalies that would have precluded normal operation.NTSB CEN10TA194Accident · Serious injuriesFinal reportBeech 95-B55 · Center, NDThe inadvertent in-flight collision with several Mallard ducks.NTSB CHI08CA157Accident · Minor injuriesData collectionFinal reportCessna 172C · Nortonville, NDThe pilot's inadequate preflight which resulted in insufficient fuel on board to complete the flight. A factor associated with the accident was the soft terrain encountered during the forced landing.NTSB CHI08CA131Accident · Minor injuriesData collectionFinal reportKuntz Kuntz 2000 GTS EFI · Dickinson, NDThe pilot's inadequate preflight weather evaluation and the unsuitable terrain encountered during the precautionary landing at night. Contributing to the accident was the pilot becoming lost after inadvertently encountering fog while en route, the night…NTSB CHI07CA215Accident · No injuriesData collectionFinal reportRotorway 162F · Heart, NDThe pilot inadvertently shut off the fuel pump switch which resulted in fuel starvation and the subsequent loss of engine power. An additional cause was the pilot's poorly executed autorotation/flare which resulted in a hard landing.NTSB CHI06FA275Accident · 1 fatalField investigationFinal reportPiper PA-28-140 · Kulm, NDThe non-instrument rated pilot's continued flight into instrument meteorological conditions which resulted in his inadvertent encounter with a thunderstorm and his loss of aircraft control. A factor to the accident was the thunderstorm.NTSB CHI06CA216Accident · No injuriesData collectionFinal reportPiper PA-25 · Minot, NDThe loss of engine power due to fuel exhaustion as a result of the pilot's inadequate fuel calculations and the low airspeed which resulted in the pilot stalling the airplane. A factor was the car on the road which prevented the pilot from landing on the road.NTSB CHI05LA145Accident · No injuriesLimited investigationFinal reportPiper PA-25-235 · Mapleton, NDThe pilot's continued flight into instrument meteorological conditions and his failure to maintain clearance from an object during the precautionary landing. The heavy rain and the unknown object were factors.NTSB CHI05LA012Accident · 1 fatalLimited investigationFinal reportCessna 150M · Ashley, NDThe non-instrument rated pilot's continued flight into known adverse weather conditions and his not maintaining aircraft control during cruise flight. Factors present were the night condition and low ceilings.NTSB CHI01LA221Accident · No injuriesLimited investigationFinal reportPiper PA-30 · Bowman, NDAltitude/clearance not obtained by the pilot during the initial climb. Factors relating to the accident were attaining the proper climb rate not being possible, the microburst, the dark night, and the tree.NTSB CHI00LA246Accident · Minor injuriesLimited investigationFinal reportSummers RV4 · Bismarck, NDInadequate preflight planning/preparation by the pilot, which resulted in fuel exhaustion. A factor associated with the accident was the drainage ditch that the airplane contacted.NTSB CHI00LA028Accident · Serious injuriesLimited investigationFinal reportShaffer Evans Volksplane · Stanley, NDrefueling not performed by the non-rated pilot and the lack of total experience of the non-rated pilot. Factors to the accident were fuel exhaustion, the unsuitable terrain for landing encountered by the non-rated pilot, and the rough/uneven terrain condition.NTSB CHI99FA196Accident · 1 fatalField investigationFinal reportBeech C-23 · Mandan, NDthe pilot failed to maintain aircraft control on approach to the airport after encountering high winds, gusts, rain, and thunderstorms in the area.NTSB CHI99LA162Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G-164B · Buxton, NDthe number one cylinder's separation, the pilot's visual lookout not possible through the oil given off by the number one cylinder, and the embankment. A factor in the accident was the oil.NTSB CHI99LA020Accident · 1 fatalLimited investigationFinal reportBecker Wag Aero Super Sport · Hamilton, NDthe fatigue failure of the lower wing strut attachment bracket.NTSB CHI98LA271Accident · Minor injuriesLimited investigationFinal reportVollmers Sonerai II L · Lincoln, NDLoss of engine power due to a corroded ignition wire. Related factors were the tailwind, and ditch.NTSB CHI98LA241Accident · No injuriesLimited investigationFinal reportRockwell S-2R · Fort Ransom, NDA loss of engine power due to fuel exhaustion. Factors contributing to this accident were the pilot's failure to ensure the airplane had enough fuel to complete the flight, and the fence.NTSB CHI98LA016Accident · No injuriesLimited investigationFinal reportPiper PA-18-150 · Williston, NDthe pilot's inadequate preflight planning/preparation, and his selection of an unsuitable area for landing. The adverse weather condition (low ceiling) and submerged object were related factors.NTSB CHI97LA292Accident · Serious injuriesLimited investigationFinal reportBoeing 747-422 · Grand Forks, NDThe flight attendant's seat belt was not secured. A factor was turbulence in the clouds.NTSB FTW97IA261Incident · Minor injuriesIncident investigationFinal reportBoeing 757-223 · Dickinson, NDan encounter with unforecast convection induced turbulence (CIT). Related factors were: the flight crew's improper evaluation of the weather, and an inaccurate preflight weather briefing by company weather personnel.NTSB CHI97LA036Accident · No injuriesLimited investigationFinal reportCessna 177 · Regan, NDthe pilot's intentional flight into adverse weather. Factors were clouds, the pilot's inadequate in-flight planning/decision making, his poor evaluation of the weather, and the encounter with unsuitable terrain for landing.NTSB CHI97LA037Accident · No injuriesLimited investigationFinal reportCessna 150 · Bowbells, NDthe pilot's failure to lean the mixture control after applying carburetor heat as the pilot's operating handbook states should be done. The carburetor icing conditions and the terrain were factors.NTSB CHI96LA259Accident · Minor injuriesLimited investigationFinal reportBeech C24R · Hazelton, NDinadvertent VFR flight by the noninstrument-rated pilot into instrument meteorological conditions (IMC), and his failure to maintain altitude control of the airplane, which resulted in a collision with the terrain. Factors relating to the accident were:…NTSB CHI96LA228Accident · No injuriesLimited investigationFinal reportPiper PA-25-235 · Kenmare, NDthe pilot's improper refueling procedure, inadequate preflight and the inadvertent stall. A factor related to the accident was the low altitude at which the loss of power occurred.NTSB CHI96LA220Accident · 1 fatalLimited investigationFinal reportGrumman AA5B · Fryburg, NDthe pilot's VFR flight into instrument meteorological conditions. Factors were the fog, low ceiling, and rising terrain.NTSB CHI96FA216Accident · No injuriesField investigationFinal reportFairchild SA227AC · Grand Forks, NDinsufficient clearance between the second stage compressor impeller and the shroud. A factor was the subsequent fatigue failure of the impeller.NTSB CHI95FA285Accident · 2 fatalField investigationFinal reportPiper PA-31-350 · Ardoch, NDthe pilot-in-command's continuing flight into adverse weather. Factors were the pilot-in-command's failure to obtain a weather observation and the adverse weather.NTSB CHI95LA225Accident · No injuriesLimited investigationFinal reportCessna 206 · Williston, NDengine failure due to low fuel pressure at high power settings and subsequent detonation. A factor was an evasive maneuver to avoid obstacles which precipitated a stall. Additional factors include the hay bales, farm equipment, and the runway berm.NTSB CHI95LA217Accident · Serious injuriesLimited investigationFinal reportSchweizer G-164B · Kenmare, NDthe pilot's not obtaining/maintaining proper climb rate.NTSB CHI95FA124Accident · 1 fatalField investigationFinal reportBeech 65-B80 · Great Bend, NDthe pilot/mechanic's inadequate maintenance (inspection) of aircraft and the pilot's failure to maintain airspeed (VMC). Factors were icing conditions, deteriorated induction air ducting, and failure of a piston assembly.NTSB CHI95IA066Incident · No injuriesIncident investigationFinal reportBeech 1900D · Williston, NDthe improper installation and inadequate quality assurance inspection of the elevator trim cable during original manufacture, which resulted in fraying and failure of the cable prior to the first routine scheduled inspection of the system.NTSB CHI95LA046Accident · No injuriesLimited investigationFinal reportPiper PA-44-180 · Dickinson, NDThe flight instructor (CFI) misjudged the flare, which resulted in a hard landing. Factors related to the accident were: the adverse weather (icing) condition, structural ice, windshield ice, darkness, and the lack of visual cues for the pilot to land.NTSB CHI95LA024Accident · No injuriesLimited investigationFinal reportPiper PA-18 · Grand Forks, NDthe fatigue failure of the crankshaft.NTSB CHI95LA008Accident · Minor injuriesLimited investigationFinal reportCessna T210R · Lakota, NDPartial loss of engine power due to preignition and/or detonation, which resulted in failure of the number 4 cylinder. The unfavorable tailwind for landing was a related factor.NTSB CHI94LA085Accident · No injuriesLimited investigationFinal reportCessna 182P · Glen Ullin, NDThe delayed application of the carburetor heat by the pilot-in-command. The carburetor icing weather condition was a factor.NTSB CHI93LA299Accident · No injuriesLimited investigationFinal reportCessna 170B · Steele, NDThe pilot-in-command's poor in-flight decision and failure to maintain proper clearance.NTSB CHI93LA215Accident · No injuriesLimited investigationFinal reportCessna 150J · Wilton, NDFailure of the engine-driven fuel pump. A factor was the pilot's failure to select the auxiliary fuel pump.NTSB CHI93LA099Accident · No injuriesLimited investigationFinal reportCessna 150M · Stanley, NDThe student pilot's delayed use of carburetor heat. The soft terrain in the landing area was a factor.NTSB CHI93LA093Accident · No injuriesLimited investigationFinal reportPiper PA-23-160 · Cannonball, NDThe blockage of the inlet air filter from snow.NTSB CHI93FA053Accident · 1 fatalField investigationFinal reportPiper PA-30 · Bowman, NDThe non instrument rated private pilot's failure to maintain adequate terrain clearance after inadvertent VFR flight into instrument meteorological conditions.NTSB CHI92LA117Accident · No injuriesLimited investigationFinal reportBeech F33A · Langdon, NDFailure of the pilot to fully extend the landing gear using manual procedures after an electrical system failure. A factor associated with the accident is the pilot misreading a published emergency procedure.