NTSB investigations, NJ
173 cases where the phase of flight was Maneuvering.
Cases per year
| 1964 | 6 |
|---|---|
| 1965 | 2 |
| 1966 | 4 |
| 1967 | 5 |
| 1968 | 4 |
| 1969 | 6 |
| 1970 | 5 |
| 1971 | 4 |
| 1972 | 2 |
| 1973 | 2 |
| 1974 | 1 |
| 1975 | 1 |
| 1976 | 7 |
| 1977 | 3 |
| 1978 | 3 |
| 1979 | 2 |
| 1980 | 3 |
| 1981 | 4 |
| 1982 | 3 |
| 1983 | 6 |
| 1984 | 9 |
| 1985 | 5 |
| 1986 | 5 |
| 1987 | 6 |
| 1988 | 5 |
| 1989 | 2 |
| 1990 | 3 |
| 1991 | 1 |
| 1992 | 1 |
| 1993 | 4 |
| 1994 | 1 |
| 1995 | 4 |
| 1996 | 6 |
| 1997 | 3 |
| 1998 | 1 |
| 1999 | 4 |
| 2000 | 4 |
| 2002 | 1 |
| 2004 | 1 |
| 2005 | 4 |
| 2006 | 3 |
| 2007 | 1 |
| 2008 | 4 |
| 2010 | 1 |
| 2011 | 4 |
| 2012 | 1 |
| 2013 | 2 |
| 2015 | 2 |
| 2017 | 2 |
| 2018 | 2 |
| 2019 | 2 |
| 2021 | 1 |
| 2022 | 2 |
| 2023 | 1 |
| 2025 | 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\" = 'NJ' AND c.\"eventCountry\" = 'USA'
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 c."eventStateOrRegion" = 'NJ' AND c."eventCountry" = 'USA'
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 ERA26FA077Accident · 2 fatalClass 3 · FieldPreliminary reportEnstrom 280 · Hammonton, NJOn December 28, 2025, at 1124 eastern standard time, an Enstrom F-28A helicopter, N520H, and an Enstrom 280C helicopter, N280MG, collided in midair near Hammonton, New Jersey. The private pilots onboard each of the helicopters were fatally injured. Both…NTSB ERA26LA003Accident · Minor injuriesClass 4 · LimitedFinal reportCessna 172 · West Milford, NJThe pilot’s failure to adequate clearance from obstacles while maneuvering during the landing approach and the instructor pilot’s delayed remedial action, which resulted in the airplane contacting a tree and terrain.NTSB ERA23FA357Accident · 1 fatalClass 3 · FieldFinal reportRobinson Helicopter R22 Beta · Kingston, NJA loss of control, which resulted in the main rotor blade severing the tail boom, for reasons that could not be determined.NTSB ERA22FA315Accident · 1 fatalClass 3 · FieldFinal reportPiper PA12 · Middle Township, NJThe pilot’s exceedance of the airplane’s critical angle of attack during a missed banner pickup, which resulted in an aerodynamic stall/spin and loss of control at an altitude too low to recover.NTSB ERA22LA297Accident · Serious injuriesClass 3 · LimitedFinal reportGrumman G-164A · Hopewell Township, NJA partial loss of engine power while maneuvering at low altitude due to a failure of the airplane’s supercharger.NTSB ERA22FA058Accident · 2 fatalClass 3 · FieldFinal reportCessna 172 · Branchville, NJThe flight instructor’s failure to recover from a steep spiral turn during an instructional flight.NTSB ERA19FA184Accident · 1 fatalClass 2 · FieldFinal reportMooney M20J · Cape May, NJThe pilot's intentional flight into water as an act of suicide.NTSB WPR19TA131Accident · No injuriesClass 3Final reportRobinson R22 · Lincoln Park, NJThe flight instructor's failure to maintain control of the helicopter while transitioning from a hover to forward flight, which resulted in a loss of control.NTSB GAA18CA483Accident · No injuriesData collectionFinal reportRobinson R22 · Ocean City, NJThe flight instructor's decision to conduct hover practice at a lower altitude than recommended and his delayed remedial action during recovery from an unstable hover, which resulted in a dynamic rollover.NTSB ERA18LA210Accident · Minor injuriesClass 3 · LimitedFinal reportChampion 7GCAA · Lakewood, NJThe pilot's failure to use carburetor heat in weather conditions conducive to carburetor icing, which resulted in a partial loss of engine power due to the formation of carburetor ice, a forced landing and impact with terrain.NTSB ERA17CA187Accident · No injuriesData collectionFinal reportRobinson R22 · Linden, NJThe flight instructor's failure to maintain helicopter control while hovering, which resulted in skid contact with the ground and a dynamic roll-over.NTSB ERA17LA110Accident · Serious injuriesLimited investigationFinal reportPiper PA28R · Bayonne, NJMaintenance personnel’s incorrect installation of the No. 3 cylinder’s hydraulic valve tappet plunger, which resulted in a failure of the No. 3 cylinder’s intake valve and the subsequent partial loss of engine power.NTSB ERA15FA352Accident · 1 fatalField investigationFinal reportCessna 150 · Atco, NJThe student pilot's improper decision to intentionally maneuver at low altitude while waving to people on the ground, which led to the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall.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 ERA13FA424Accident · 1 fatalField investigationFinal reportBrown Robert K RV7A · Hamilton Township, NJThe pilot's improper aerobatic maneuver that resulted in a loss of control, exceedance of the airplane's design limitations, and a subsequent in-flight breakup of the airplane.NTSB ERA13FA259Accident · 1 fatalField investigationFinal reportDiamond Aircraft Ind DA 20-C1 · Linden, NJThe flight instructor's inadequate preflight planning and his decision to take off with the airplane at a high gross weight in high temperature conditions that degraded the engine’s available power and his subsequent failure to maintain airspeed while…NTSB ERA12LA482Accident · No injuriesLimited investigationFinal reportPiper PA-12 · Green Creek, NJThe pilot's inadequate fuel planning, which resulted in a total loss of engine power due to fuel starvation while maneuvering.NTSB ERA11FA468Accident · 1 fatalField investigationFinal reportMitchell David N Lancair IV P · Hammonton, NJThe Lancair pilot's failure to see and avoid the aerobatic airplane. Contributing to the accident was the Lancair pilot's inadequate use of collision avoidance strategies while inbound to an area of known potential aerobatic activity.NTSB ERA11LA437Accident · Serious injuriesLimited investigationFinal reportBellanca 8GCBC · Egg Harbor Township, NJThe pilot’s failure to maintain adequate airspeed while maneuvering near the ground, which resulted in an aerodynamic stall.NTSB ERA11LA409Accident · Serious injuriesLimited investigationFinal reportRobinson Helicopter R22 Beta · Dayton, NJThe pilot's inadequate compensation for wind during an out-of-ground-effect hover, which resulted in a loss of control due to settling with power and loss of tail rotor effectiveness.NTSB ERA11LA380Accident · No injuriesLimited investigationFinal reportRobinson Helicopter R44 · Lakewood, NJThe pilot’s inadequate yaw control of the helicopter while hovering.NTSB ERA10FA140Accident · 5 fatalField investigationFinal reportCessna T337G · Farmingdale, NJThe pilots’ failure to adhere to the airplane’s operating limitations, which resulted in overload failure of the right wing. Findings of the investigation were the adverse effects of multiple supplemental type certificates (STC) to the airframe wing structure…NTSB CHI08LA215Accident · Serious injuriesLimited investigationFinal reportPiper PA-12 · Rio Grande, NJA total loss of engine power due to fuel exhaustion as a result of the pilot's inadequate fuel management.NTSB NYC08FA239Accident · 1 fatalField investigationFinal reportJahns Vans RV-7 · Neptune, NJAn in-flight loss of control for undetermined reasons.NTSB NYC08LA222Accident · 2 fatalLimited investigationFinal reportDennis P. McGurk F1 Rocket · Woodbine, NJA total loss of engine power due to fuel starvation as a result of the pilot's failure to select the proper tank prior to performing aerobatics.NTSB NYC08CA181Accident · No injuriesData collectionFinal reportCessna 172 M · Hampton, NJA loss of engine power for undetermined reasons.NTSB ATL07LA131Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Pittsgrove, NJA partial loss of engine power due to low compression for undetermined reasons.NTSB NYC06LA193Accident · Serious injuriesLimited investigationFinal reportPiper PA-25 · Egg Harbor Twp, NJThe pilot's failure to utilize carburetor heat during the descent, which resulted in the formation of carburetor ice and subsequent engine failure. A factor in the accident was the carburetor icing conditions.NTSB NYC06LA167Accident · No injuriesLimited investigationFinal reportBellanca 7GCBC · Toms River, NJCarburetor icing, and the pilot's delayed application of carburetor heat, which resulted in a loss of engine power, and subsequent force landing. A factor in the accident was carburetor icing conditions.NTSB NYC06LA142Accident · Minor injuriesLimited investigationFinal reportWeatherly 201B · Southampton, NJThe failure of the engine's supercharger, which resulted in a loss of engine power, and subsequent forced landing.NTSB IAD05LA142Accident · 2 fatalLimited investigationFinal reportAir Creation Clipper 912 · Millstone, NJThe pilot's failure to maintain control of the airplane, which resulted in an uncontrolled descent and impact with trees.NTSB NYC05LA113Accident · Serious injuriesLimited investigationFinal reportMeyer Atlantis · Pittstown, NJThe pilot's failure to maintain clearance from power lines, while returning to the airport after takeoff.NTSB NYC05FA100Accident · 1 fatalField investigationFinal reportCessna 182Q · Stockholm, NJThe pilot's failure to maintain aircraft control while maneuvering, which resulted in an uncontrolled descent and impact with the ground. Factors in this accident were clouds, and the pilot's spatial disorientation.NTSB IAD05LA077Accident · No injuriesLimited investigationFinal reportPiper PA-25-260 · Southampton, NJA lack of lubrication for undetermined reasons which resulted in the failure of the Nos. 4 and 5 connecting rods, and a subsequent total loss of engine power. A factor in the accident was the furrowed cornfield.NTSB NYC04LA181Accident · Minor injuriesLimited investigationFinal reportBellanca 7KCAB · Farmingdale, NJThe pilot's failure to maintain adequate airspeed which resulted in a stall and collision with wires.NTSB IAD02FA074Accident · 1 fatalField investigationFinal reportWehrlen Glassair II RG · Jackson, NJThe pilot's failure to maintain airspeed, which resulted in an inadvertent stall/spin and subsequent impact with terrain.NTSB NYC00LA263Accident · No injuriesLimited investigationFinal reportBell 206B · North Arlington, NJThe pilot's improper decision to fly with an insufficient fuel quantity. A factor in the accident was the failure of the fuel boost pump.NTSB NYC00FA183Accident · 1 fatalField investigationFinal reportChampion 7GCAA · Lakewood, NJThe pilot's failure to maintain airspeed, resulting in an inadvertent stall. Factors were the entanglement of the tow rope with the rudder horn, restricted rudder movement, the pilot's lack of total experience in the type of operation, and no stall warning…NTSB NYC00LA179Accident · No injuriesLimited investigationFinal reportMaule MX-7-180 · Woodbine, NJThe pilot-in-command's failure to initiate a timely go-around.NTSB NYC00LA144Accident · No injuriesLimited investigationFinal reportGrumman G-164-A · Toms River, NJThe failure of the number 9 cylinder connecting rod, due to a primer leak initiation of a partial hydraulic lock. A factor in the accident was the unsuitable terrain, to which the forced landing had to be made.NTSB NYC00FA047Accident · 4 fatalField investigationFinal reportBeech 58TC · Hasbrouck Hts., NJthe failure of the pilot to maintain adequate airspeed while maneuvering which resulted in an inadvertent stall/spin.NTSB IAD99LA061Accident · 1 fatalLimited investigationFinal reportSchleicher ASW-19 · Bedminster, NJthe pilot's medical incapacitation after suffering a massive stroke.NTSB NYC99FA169Accident · Minor injuriesField investigationFinal reportBell 206L-3 · Woodbridge, NJThe pilot's improper takeoff procedure, which resulted in a loss of tailrotor effectiveness.NTSB NYC99FA150Accident · 1 fatalField investigationFinal reportCanadair F-86E · Mount Holly, NJA failure in the fuel transfer system which resulted in fuel starvation and subsequent loss of engine power.NTSB NYC98LA169Accident · Serious injuriesLimited investigationFinal reportCessna 152 · Jackson Twnshp, NJThe flight (check pilot) instructor's excessive pull-up maneuver and his inadvertent entry into a low altitude stall/spin.NTSB NYC98LA023Accident · No injuriesLimited investigationFinal reportHiller UH-12D · Farmingdale, NJThe certificated flight instructor's inadequate supervision and failure to maintain directional control.NTSB NYC97FA172Accident · 1 fatalField investigationFinal reportPiper PA-23-250 · Baptistown, NJfailure of the pilot to maintain control of the airplane for undetermined reason(s), while operating it at low altitude.NTSB NYC97FA144Accident · 2 fatalField investigationFinal reportCessna TR182 · Seaside Heights, NJfailure of the pilot to maintain sufficient altitude/clearance above water, while maneuvering over the ocean during a dark moonless night. Related factors were: darkness, the pilot's probable illusion of altitude, spatial disorientation, and lack of…NTSB NYC97LA026Accident · 1 fatalLimited investigationFinal reportParker Mustang · Port Norris, NJThe student pilot's failure to maintain adequate airspeed.NTSB NYC97FA011Accident · 2 fatalField investigationFinal reportYakovlev YAK-18T · Berlin, NJan inadequate preflight by unknown person(s), sometime before the flight, by failing to avoid a hydraulic lock (from oil seepage) in the #5 cylinder, which resulted in a bent connecting rod, subsequent failure of the #5 piston, and loss of engine power. Also…