NTSB investigations, 2006
203 cases where the phase of flight was Maneuvering.
Cases per year
| 1964 | 415 |
|---|---|
| 1965 | 419 |
| 1966 | 366 |
| 1967 | 410 |
| 1968 | 394 |
| 1969 | 360 |
| 1970 | 330 |
| 1971 | 384 |
| 1972 | 359 |
| 1973 | 407 |
| 1974 | 410 |
| 1975 | 407 |
| 1976 | 480 |
| 1977 | 443 |
| 1978 | 433 |
| 1979 | 384 |
| 1980 | 377 |
| 1981 | 374 |
| 1982 | 416 |
| 1983 | 476 |
| 1984 | 462 |
| 1985 | 402 |
| 1986 | 357 |
| 1987 | 357 |
| 1988 | 349 |
| 1989 | 313 |
| 1990 | 307 |
| 1991 | 350 |
| 1992 | 309 |
| 1993 | 315 |
| 1994 | 322 |
| 1995 | 320 |
| 1996 | 279 |
| 1997 | 262 |
| 1998 | 259 |
| 1999 | 267 |
| 2000 | 281 |
| 2001 | 257 |
| 2002 | 241 |
| 2003 | 263 |
| 2004 | 224 |
| 2005 | 212 |
| 2006 | 203 |
| 2007 | 222 |
| 2008 | 234 |
| 2009 | 208 |
| 2010 | 222 |
| 2011 | 250 |
| 2012 | 236 |
| 2013 | 216 |
| 2014 | 199 |
| 2015 | 217 |
| 2016 | 177 |
| 2017 | 201 |
| 2018 | 187 |
| 2019 | 197 |
| 2020 | 165 |
| 2021 | 186 |
| 2022 | 186 |
| 2023 | 191 |
| 2024 | 165 |
| 2025 | 145 |
| 2026 | 90 |
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 year(c.\"eventDate\") = 2006
AND 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 year(c."eventDate") = 2006
AND 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 LAX07LA067Accident · 1 fatalLimited investigationFinal reportCessna 150J · San Diego, CAThe pilot's improper use of the throttle and failure to maintain an adequate airspeed that resulted in a stall/spin.NTSB SEA07LA040Accident · 1 fatalLimited investigationFinal reportTessier Avid Flyer · Hillsboro, ORThe loss of engine power during maneuvering flight due to carburetor icing, and inadvertent flight into instrument meteorological conditions. Factors were the ambient weather conditions conducive to carburetor icing and fog.NTSB DFW07CA050Accident · No injuriesData collectionFinal reportHughes 269C · Mineral Wells, TXThe loss of control as result of loss of tail rotor effectiveness.NTSB CHI07FA048Accident · 2 fatalField investigationFinal reportMooney M-20F · Mt. Gilead, OHBoth the pilot-in-command/aircraft owner and the flight instructor failed to recover from the stall and the flight instructor's inadequate supervision of the flight. Contributing to the accident was the failure to maintain stall speed which resulted in the…NTSB LAX07CA063Accident · No injuriesData collectionFinal reportBelcher Helicycle · Boulder City, NVa loss of engine power due to a fractured fuel line.NTSB LAX07FA060Accident · 2 fatalField investigationFinal reportPiper PA-28-161 · Big Pine, CAThe inadequate in-flight/planning decision of both pilots to fly up a box canyon at low altitude, and their failure to maintain clearance from the terrain.NTSB ATL07LA025Accident · 2 fatalLimited investigationFinal reportFagan Rans S-6S · Taylorsville, NCThe pilots failure to maintain airspeed while maneuvering resulting in an inadvertent stall, uncontrolled decent, collision with the ground, and a post crash fire.NTSB LAX07LA054Accident · 2 fatalLimited investigationFinal reportJohn Lauer Harmon Rocket II · Bakersfield, CAThe pilot's failure to maintain terrain clearance during an aerobatic maneuver.NTSB LAX07CA053Accident · No injuriesData collectionFinal reportNorth American AT-6C · Mojave, CAthe pilot's failure to maintain adequate clearance from a sign while performing a low altitude maneuver.NTSB SEA07LA025Accident · 2 fatalLimited investigationFinal reportHolloway RV6A · North Bend, ORThe pilot's failure to maintain clearance from the water while performing low altitude maneuvering flight resulting in an in flight collision with the water.NTSB CHI07FA032Accident · 2 fatalField investigationFinal reportCessna 172 · Crookston, MNThe pilot's inadvertent flight into instrument meteorological conditions which led to his spatial disorientation and subsequent loss of control. Factors were the snow, the low ceiling, and the pilot's lack of instrument flight experience.NTSB LAX07TA051Accident · No injuriesFinal reportLearjet 36 · San Diego, CAThe pilot's failure to maintain aircraft control while maneuvering, which resulted in exceeding the design stress limits of the aircraft. Contributing to the accident was the sunglare.NTSB LAX07LA047Accident · 1 fatalLimited investigationFinal reportInteravia E-3 · San Pedro, CALoss of control for undetermined reasons.NTSB LAX07LA045Accident · No injuriesLimited investigationFinal reportNanchang CJ-6A · Queen Creek, AZThe total loss of engine power resulting from the failure of the engine's air compressor due to a seized piston, which resulted in the stoppage of the oil pump, fuel pump, and tachometer generator, in addition to the compressor. The underlying reason for the…NTSB DFW07LA026Accident · 2 fatalLimited investigationFinal reportKeesler Pulsar · Alvarado, TXThe pilot's improper handling of the airplane while manuevering at a low altitude, which resulted in an inadvertant stall.NTSB SEA07LA022Accident · No injuriesLimited investigationFinal reportMcDonnell Douglas 369E · Lyons, ORA severing of the helicopter's cyclic and collective rods by one of the load lifting slings following the failure of the other sling. A contributing factor was the hard landing due to the fact that an autorotation was not possible.NTSB SEA07LA021Accident · 1 fatalLimited investigationFinal reportHughes 369E · Jensen, UTThe pilot's failure to maintain clearance with the transmission wires due to an inadquate visual lookout while maneuvering during a search and rescue flight.NTSB MIA07CA021Accident · Minor injuriesData collectionFinal reportRobinson R22 · Lakeland, FLThe flight instructor's failure to maintain control of the helicopter during takeoff resulting in a roll over.NTSB NYC07LA030Accident · No injuriesLimited investigationFinal reportStump Rotorway Exec 90 · Manchester, NHAn improperly installed oil line, which resulted in oil line fatigue failure and a subsequent loss of oil to the engine. A contributing factor was the sloping terrain at the forced landing site.NTSB NYC07FA029Accident · Serious injuriesField investigationFinal reportRobinson R44 II · Baltimore, MDThe pilot's failure to maintain control while landing to a trailer, which resulted in a collision with terrain. A factor in the accident was the narrow trailer.NTSB NYC07FA025Accident · 1 fatalField investigationFinal reportCzech Aircraft Works CH 601 XL RTF · Basye, VAThe pilot's inadequate preflight inspection, which resulted in a total loss of engine power due to fuel exhaustion.NTSB DEN07LA020Accident · 1 fatalLimited investigationFinal reportAir Tractor AT-502A · Deming, NMThe pilot's failure to maintain aircraft control while maneuvering resulting in an inadvertent stall and impact with terrain. A contributing factor was the low airspeed.NTSB NYC07LA022Accident · 1 fatalLimited investigationFinal reportMonard RAF 2000 GTX · Ridgely, MDThe pilot's failure to maintain rotor rpm while maneuvering, which resulted in a loss of rotor blade rigidity.NTSB LAX07TA029Accident · No injuriesFinal reportEurocopter France AS350B3 · Apple Valley, CAthe pilot's improper use of the collective control during a practice hover autorotation, which resulted in a hard landing. A factor in the accident was the certificated flight instructor's inadequate supervision of the maneuver.NTSB LAX07LA025Accident · 2 fatalLimited investigationFinal reportOlson Vans RV-6 · Rio Verde, AZThe pilot's failure to maintain clearance from power lines while intentionally flying at a low altitude.NTSB LAX07LA027Accident · 2 fatalLimited investigationFinal reportAir Creations Tanarg 912 · Bisbee, AZThe pilot's failure to maintain clearance from the mountainous terrain.NTSB ATL07FA013Accident · 2 fatalField investigationFinal reportCirrus Design SR22 · Statesville, NCThe pilot's failure to maintain airspeed while maneuvering with a low ceiling in instrument flight conditions, resulting in an inadvertent stall, and collision with trees and the ground. Factors in the accident were the pilot's failure to follow the published…NTSB DFW07FA008Accident · 1 fatalField investigationFinal reportNorth American T-28C · Georgetown, LAThe pilot's failure to maintain control of the airplane which led to an aerodynamic stall. A contributing factor was the dark night.NTSB LAX07FA012Accident · 5 fatalField investigationFinal reportPiper PA-42 · Prescott, AZThe failure of the pilot following a jet aircraft to maintain adequate separation from the high velocity jet core exhaust. The separation of the T-tail upper section vertical stabilizer of the following aircraft due to contact with the high velocity jet core…NTSB DFW07LA006Accident · Minor injuriesLimited investigationFinal reportWindward OWL · Starkville, MSThe structural failure of the airframe due to the inadvertent excessive airspeed during maneuvering.NTSB NYC07LA008Accident · 1 fatalLimited investigationFinal reportFlynn William Pazmany PL-4 · Fredricksburg, VAThe pilot's intentional low altitude maneuvering, which resulted in an inadvertent collision with terrain.NTSB DEN07CA009Accident · No injuriesData collectionFinal reportRobinson R22 Beta · Hope, NMthe pilot's failure to maintain aircraft control. Contributing factors in this accident included the sudden wind shift and high density altitude, resulting in the helicopter settling with power, and the high vegetation.NTSB NYC07FA007Accident · 1 fatalField investigationFinal reportExtra Flugzeugbau Gmbh 300 · Culpeper, VAThe pilot’s disorientation while performing an aerobatic maneuver, which resulted in the airplane’s inadvertent impact with the ground. Contributing to the accident was the pilot’s overuse of prescription medication.NTSB MIA07CA004Accident · No injuriesData collectionFinal reportHughes OH-6A · Key Largo, FLThe pilot's inadvertent encounter with a loss of tail rotor effectiveness during hover in a crosswind wind.NTSB DCA07MA003Accident · 2 fatalClass 1 · MajorFinal reportCirrus Design SR-20 · Manhattan, NYC, NYThe pilots' inadequate planning, judgment, and airmanship in the performance of a 180º turn maneuver inside of a limited turning space.NTSB NYC07FA003Accident · 2 fatalField investigationFinal reportMooney M20F · Brownsville, PAA loss of aircraft control, for unknown reasons, while maneuvering.NTSB DEN07FA003Accident · 1 fatalField investigationFinal reportExtra Flugzeugbau EA 300/L · Tucumcari, NMThe pilot's failure to maintain aircraft control during aerobatic flight, resulting in an inadvertent accelerated stall. Contributing factors include the low altitude for recovery from the loop and the high density altitude.NTSB ATL07LA001Accident · Minor injuriesLimited investigationFinal reportGrumman G-164 · Somerville, TNThe total loss of engine power for undetermined reasons.NTSB LAX07TA001Accident · Minor injuriesFinal reportErickson S64E · Ojai, CAThe pilot-in-command's improper remedial action, which resulted in a loss of helicopter control. Contributing factors were the retardant tank and snorkel designs.NTSB ATL06LA133Accident · No injuriesLimited investigationFinal reportRobinson R44 · Beaufort, NCThe loss of engine power for undetermined reasons.NTSB CHI06LA273Accident · Minor injuriesLimited investigationFinal reportDaub Pawnee Chief · McCook, NEThe failure of a welded joint at a cyclic control cable bracket located on the main rotor mast which made control of the helicopter impossible for the pilot.NTSB LAX06FA304Accident · 2 fatalField investigationFinal reportCessna 182K · Sedona, AZThe pilot's failure to maintain clearance from trees and terrain while maneuvering in mountainous/hilly terrain in a high density altitude environment.NTSB DFW06CA213Accident · No injuriesData collectionFinal reportRobinson R22 · Skiatook, OKThe pilot's failure to maintain control of the helicopter following an encounter with dynamic rollover.NTSB ANC06FA136Accident · 1 fatalField investigationFinal reportde Havilland DHC-2 · Kodiak, AKThe pilot's failure to maintain adequate airspeed while maneuvering to reverse direction, which resulted in an inadvertent stall and an uncontrolled descent. Factors associated with the accident were the inadvertent stall and wind gusts.NTSB NYC06LA227Accident · 2 fatalLimited investigationFinal reportAir Trikes Tourist · Middlebury, VTA loss of control for undetermined reasons.NTSB ANC06CA133Accident · No injuriesData collectionFinal reportPiper PA-18 · Koliganek, AKThe pilot's failure to maintain adequate altitude/clearance from rising terrain while maneuvering at a low altitude, which resulted in an in-flight collision with terrain. Factors associated with the accident were a downdraft, the pilot's intentional low…NTSB DEN06GA128Accident · 2 fatalFinal reportPiper PA-23-250 · Fort Meade, FLA loss of power in the right engine while manuevering for reasons undetermined, and failure to maintain aircraft control which resulted in an inadvertent stall. Contributing factors were the airspeed below Vmc, and an altitude too low to afford a safe…NTSB LAX06LA292Accident · 1 fatalLimited investigationFinal reportBurkhart Grob G-103A Twin II Acro · Minden, NVThe inadequate pre-takeoff checks by the flightcrew that failed to detect that the spoilers were deployed during the takeoff and initial climb. Also causal was the inadequate supervision of the flight by the flight instructor.NTSB LAX06FA289Accident · 1 fatalField investigationFinal reportPiper PA-23-160 · Santa Maria, CAThe non-instrument rated pilot's decision to continue flight into instrument meteorological conditions resulting in spatial disorientation and a loss of control.NTSB LAX06GA287Accident · 2 fatalFinal reportNorth American OV-10A · Porterville, CAthe pilot's failure to maintain adequate terrain clearance while maneuvering over rising terrain in a box canyon. Also causal was the pilot's failure to adhere to procedures/directives regarding minimum altitude requirements.