NTSB investigations, 2000
221 cases where the phase of flight was Initial climb.
Cases per year
| 1962 | 3 |
|---|---|
| 1963 | 4 |
| 1964 | 505 |
| 1965 | 555 |
| 1966 | 582 |
| 1967 | 587 |
| 1968 | 577 |
| 1969 | 582 |
| 1970 | 552 |
| 1971 | 541 |
| 1972 | 507 |
| 1973 | 482 |
| 1974 | 556 |
| 1975 | 543 |
| 1976 | 521 |
| 1977 | 556 |
| 1978 | 566 |
| 1979 | 502 |
| 1980 | 505 |
| 1981 | 499 |
| 1982 | 490 |
| 1983 | 507 |
| 1984 | 466 |
| 1985 | 418 |
| 1986 | 394 |
| 1987 | 380 |
| 1988 | 368 |
| 1989 | 348 |
| 1990 | 351 |
| 1991 | 324 |
| 1992 | 306 |
| 1993 | 307 |
| 1994 | 292 |
| 1995 | 289 |
| 1996 | 244 |
| 1997 | 272 |
| 1998 | 266 |
| 1999 | 239 |
| 2000 | 221 |
| 2001 | 219 |
| 2002 | 200 |
| 2003 | 227 |
| 2004 | 210 |
| 2005 | 204 |
| 2006 | 180 |
| 2007 | 202 |
| 2008 | 212 |
| 2009 | 173 |
| 2010 | 162 |
| 2011 | 177 |
| 2012 | 193 |
| 2013 | 122 |
| 2014 | 130 |
| 2015 | 165 |
| 2016 | 141 |
| 2017 | 149 |
| 2018 | 155 |
| 2019 | 146 |
| 2020 | 112 |
| 2021 | 166 |
| 2022 | 161 |
| 2023 | 163 |
| 2024 | 143 |
| 2025 | 135 |
| 2026 | 104 |
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\") = 2000
AND c.\"mKey\" IN (SELECT case_mkey FROM case_phases WHERE main = 350)
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") = 2000
AND c."mKey" IN (SELECT case_mkey FROM case_phases WHERE main = 350)
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 LAX01LA067Accident · No injuriesLimited investigationFinal reportPiper PA-28-140 · Rosamond, CAThe pilot's improper airplane handling technique and inadequate airspeed during performance of an intentional soft field takeoff.NTSB LAX01LA065Accident · Minor injuriesLimited investigationFinal reportCessna T210N · Colorado City, AZthe pilot's improper preflight and failure to refuel the airplane.NTSB NYC01LA060Accident · Minor injuriesLimited investigationFinal reportCessna 182P · Mitchellville, MDA loss of engine power for undetermined reasons.NTSB MIA01LA048Accident · Serious injuriesLimited investigationFinal reportPiper PA-28R-201 · Fort Pierce, FLThe pilot's improper approach for landing while making a landing following a reported momentary partial loss of engine power for undetermined reasons and his decision to make a go-around from the approach resulting in a landing in a field and collapse of the…NTSB CHI01LA049Accident · No injuriesLimited investigationFinal reportCessna 210C · Indianapolis, INThe reason for the loss of engine power is undetermined. A factor was the rough terrain.NTSB ANC01LA023Accident · No injuriesLimited investigationFinal reportCessna 180 · Chugiak, AKThe failure of a mechanic to ensure the throttle linkage was secure. A factor in the accident was the pilot's failure to take remedial action during an emergency landing and overrun.NTSB DEN01LA022Accident · No injuriesLimited investigationFinal reportCessna 210C · Boulder, COTotal loss of engine power due to fuel contamination (water), and failure of the pilot to have the airplane completely refueled. A factor was unsuitable terrain on which to make a forced landing.NTSB CHI01IA047Incident · No injuriesIncident investigationFinal reportCessna 172S · St. Cloud, MNthe fatigue failure of the propeller blade during the initial takeoff climb. The failure was a result of a material defect, which occurred during the manufacturing process and the manufacturers failure to detect the defect.NTSB FTW01LA034Accident · Minor injuriesLimited investigationFinal reportEvans Varieze · Ingleside, TXthe loss of control during takeoff initial climb due to the binding rudder, which restricted the pilot's control of the aircraft.NTSB DEN01LA020Accident · Serious injuriesLimited investigationFinal reportThomas VP-1 · West Jordan, UTthe lack of suitable terrain for a forced landing. Contributing factors were the total loss of engine power due to the failure of the pilot to adjust the manual propeller pitch to permit the engine to achieve sufficient rpm for sustained flight, and the…NTSB ATL01LA017Accident · Minor injuriesLimited investigationFinal reportCessna 152 · Cleveland, TNA loss of engine power during takeoff due to carburetor ice. A factor was unsuitable terrain.NTSB ATL01LA012Accident · No injuriesLimited investigationFinal reportPiper PA-32-260 · Florence, SCLoss of engine power due to carburetor icing, which resulted in a emergency landing into rough uneven terrain.NTSB ATL01LA014Accident · No injuriesLimited investigationFinal reportPiper PA-28R-180 · Merritt Island, FLMaintenance personnel failure to properly install engine cowling fasteners, which allowed the engine cowling to separate in flight.NTSB ATL01LA011Accident · No injuriesLimited investigationFinal reportMooney M20E · Fort Myers, FLFuel system contamination that resulted in fuel starvation.NTSB CHI01LA042Accident · No injuriesLimited investigationFinal reportAerostar PA-60-601P · Preston, MNaltitude/clearance from the trees not being obtained/maintained by the pilot. Factors to the accident were the trees and the contamination of the pitot/static system.NTSB FTW01LA027Accident · Minor injuriesLimited investigationFinal reportLuscombe 8A · Antlers, OKthe loss of engine power resulting from carburetor icing conditions.NTSB IAD01FA015Accident · No injuriesField investigationFinal reportBeech F90 · Lynchburg, VAImproper rigging of both propeller assemblies by maintenance personnel, which resulted in the inadvertent feathering of both propellers after takeoff. Factors included a lack of rigging experience in airplane make and model by maintenance personnel, unclear…NTSB NYC01LA038Accident · No injuriesLimited investigationFinal reportCessna 172K · Hagerstown, MDThe pilot's failure to remove the gust lock from the control column before takeoff, and his failure to abort the takeoff.NTSB CHI01LA038Accident · No injuriesLimited investigationFinal reportCessna T210L · Madison, WIThe cause of the loss of engine power is undetermined. Factors in the accident included the fence and the localizer antennas.NTSB SEA01LA019Accident · Serious injuriesLimited investigationFinal reportPiper PA-18 · Broadus, MTThe pilot's failure to maintain aircraft control during the takeoff phase of the flight.NTSB FTW01LA019Accident · No injuriesLimited investigationFinal reportPiper PA-28R-200 · Laporte, TXThe loss of engine power for undetermined reasons. Factors were the bright night light condition, and the lack of suitable terrain for the forced landing.NTSB NYC01LA031Accident · Serious injuriesLimited investigationFinal reportPiper J3C-65 · Middletown, NYA total loss of engine power for undetermined reasons.NTSB LAX01LA034Accident · No injuriesLimited investigationFinal reportCessna 185F · Carson City, NVFuel starvation precipitated by the pilot's continued use of the fuel selector valve that was not seating in the detents properly.NTSB NYC01LA030Accident · Minor injuriesLimited investigationFinal reportCessna 172N · Ridgefield, CTThe pilot's failure to verify the airplane's fuel tank selector position, which resulted in a loss of engine power.NTSB LAX01LA031Accident · No injuriesLimited investigationFinal reportCessna 182S · French Valley, CAThe pilot's failure to follow procedures and directives contained in the information manual. Contributing to the accident was the flight instructor examiner/passenger's inattention to the sequence of events.NTSB DEN01LA009Accident · No injuriesLimited investigationFinal reportGrumman American AA-1A · Greeley, COCarburetor ice formation due to the pilot's improper use of the carburetor heat control. Factors were the fence and fence post.NTSB LAX01FA027Accident · Serious injuriesField investigationFinal reportGrumman American AA-5A · Gardena, CAThe engine lost power for undetermined reasons.NTSB FTW01FA013Accident · 1 fatalField investigationFinal reportCessna 210 · Oklahoma City, OKthe pilot's loss of control of the aircraft during initial/takeoff climb. Contributing factors were the night conditions, low ceilings, and the pilot's lack of flight experience in actual instrument meteorological conditions at night.NTSB CHI01FA024Accident · 1 fatalField investigationFinal reportPiper PA28-140 · Sparta, MIThe pilot's failure to maintain proper runway alignment on departure and his failure to maintain clearance from the trees. The pilot's attempted flight into known adverse weather, his lack of instrument experience, the fog, and the trees were contributing…NTSB CHI01LA023Accident · No injuriesLimited investigationFinal reportErcoupe 415-E · Minier, ILthe carburetor ice and after takeoff, the unsuitable terrain the pilot encountered during the forced landing. Factors were the carburetor icing conditions and the plowed field condition.NTSB MIA01LA013Accident · Serious injuriesLimited investigationFinal reportCessna 172P · Knoxville, TNThe pilot's failure to maintain Vs during takeoff/initial climb, which resulted in an inadvertent stall/mush, an uncontrolled descent, and an impact with the ground. Factors in the accident were the pilot's improper preflightplanning/preparation and failure…NTSB MIA01LA011Accident · Serious injuriesLimited investigationFinal reportCamillo Annaloro C A Spcl Quicks · Lucedale, MSThe failure of the pilot to secure a fabric panel during preflight inspection resulting in the panel separating from the aircraft during climb after takeoff, passing through the propeller and damaging wing flap fabric, loss of engine power due to wing flap…NTSB LAX01LA020Accident · 1 fatalLimited investigationFinal reportRyan ST3KR · Georgetown, CAThe airplane's encounter with a strong updraft at the end of the runway that induced an increase in the wing's angle of attack to the critical point, which resulted in an inadvertent stall and spin.NTSB CHI01LA019Accident · No injuriesLimited investigationFinal reportZenair CH2000 · Springfield, ILthe loose carburetor heat control clamp bolt and carburetor heat not available to the pilot. Factors were the low altitude, the carburetor icing conditions, the fence and the security gate.NTSB CHI01LA018Accident · No injuriesLimited investigationFinal reportBeech 95-C55 · New Ulm, MNThe engine failure for undetermined reasons, the pilot not attaining proper runway alignment, and the misjudged flare by the pilot. A factor was the runway light.NTSB NYC01LA015Accident · Serious injuriesLimited investigationFinal reportMoore Starduster SA-300 · Erwinna, PAA total loss of engine power during initial climb for undetermined reasons.NTSB LAX01FA014Accident · 2 fatalField investigationFinal reportBeech 35-33 · Monterey, CAThe pilot's inadequate in-flight planning/decision by which he conducted visual flight into instrument meteorological conditions and his failure to maintain control of the airplane. Contributing factors were low ceiling, spatial disorientation and lack of…NTSB ATL01FA008Accident · 1 fatalField investigationFinal reportPiper PA-32RT · Selmer, TNThe pilots inadequate preflight planning and preparation, that resulted in exceeding the designed weight and balance of the airplane. Factors were the pilot's use of inappropriate medications and the collision with trees.NTSB LAX01LA013Accident · Minor injuriesLimited investigationFinal reportBell 206L-1 · Grand Canyon, AZThe pilot's in-flight loss of control during liftoff due to his improper planning and decisions. Related factors were the high density altitude and helicopter weight condition, and the lack of a suitable takeoff area.NTSB CHI01LA012Accident · Serious injuriesLimited investigationFinal reportPiper PA-24-250 · Manhattan, KSthe inadequate soft field takeoff procedure by the pilot and his failure to abort the takeoff. Factors were the high grass on the runway, the pilots disregard for the runway conditions, his lack of total experience in the aircraft, the trees, and the pilots…NTSB LAX01FA011Accident · 1 fatalField investigationFinal reportNavion G · Henderson, NVthe pilot's failure to maintain an adequate airspeed while maneuvering to return to the runway following a loss of engine power in the takeoff initial climb. The loss of power was probably due to the pilot's failure to ensure that an adequate fuel supply…NTSB NYC01LA012Accident · Serious injuriesLimited investigationFinal reportPiper PA-60-601P · S. Burlington, VTThe pilot's improper in-flight decision to perform a precautionary landing, and his failure to maintain airspeed after he experienced a partial loss of power on one engine. A factor was the partial loss of power on one engine due to an induction air leak.NTSB LAX01LA012Accident · Minor injuriesLimited investigationFinal reportTolle Venture Model 20 · Madera, CAThe mechanical failure of a fuel sump tank check valve, during takeoff initial climb, that resulted in fuel starvation.NTSB CHI01LA013Accident · No injuriesLimited investigationFinal reportRepublic RC-3 · Baraboo, WIthe failure of the number five intake valve spring during initial climbout and that there was no suitable terrain during the forced landing. A factor was the corn crop.NTSB NYC01FA007Accident · 1 fatalField investigationFinal reportBeech E18S · Wash. Ct. House, OHAn undetermined event, which resulted in an off airport landing. A factor in this accident was the night light condition.NTSB CHI01MA006Accident · 2 fatalClass 1 · MajorFinal reportCanadair CL600-2B16 · Wichita, KSthe pilot’s excessive takeoff rotation, during an aft center of gravity (c.g.) takeoff, a rearward migration of fuel during acceleration and takeoff and consequent shift in the airplane’s aft c.g. to aft of the aft c.g. limit, which caused the airplane to…NTSB FTW01LA001Accident · No injuriesLimited investigationFinal reportCessna 150L · Nashville, ARThe pilot's failure to refuel resulting in loss of engine power due to fuel exhaustion. A factor was the lack of suitable terrain for the forced landing.NTSB DEN00LA183Accident · 2 fatalLimited investigationFinal reportErcoupe 415-C · Tucumcari, NMloss of control during initial climb following takeoff by an unqualified person.NTSB ATL00LA095Accident · 2 fatalLimited investigationFinal reportWilliam J. Knowles KNOWLES-THORP KT-18 · Opa-Locka, FLThe pilot's failure to maintain flying airspeed during initial climb, resulting in an inadvertent stall/spin.NTSB SEA00LA190Accident · Serious injuriesLimited investigationFinal reportPiper PA-28-140 · Miles City, MTA loss of engine power for undetermined reasons.