NTSB investigations
6,398 cases where the phase of flight was Taxi.
Cases, newest first
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.\"mKey\" IN (SELECT case_mkey FROM case_phases WHERE main = 250)
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."mKey" IN (SELECT case_mkey FROM case_phases WHERE main = 250)
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 LAX83LA126Accident · No injuriesLimited investigationFinal reportCessna 120 · Prescott, AZThe plt reported he was taxiing in winds that were moderate & gusting. While taxiing, he made s-turns & positioned the controls to compensate for the wind. As he approached the run-up area, he reduced power to slow down. At about that time, the nose suddenly…NTSB ANC83LA048Accident · No injuriesLimited investigationFinal reportDouglas DC-6A · Nuiqsut, AKThe captain reported that the acft moved faster at idle pwr because the cargo had been offloaded. When he checked the brakes halfway down the taxiway he found that the brakes would not slow the acft on glare ice and snow. The flt engineer began reversing the…NTSB NYC83LA065Accident · No injuriesLimited investigationFinal reportCessna 150K · Wilmington, DEA C-130 aircrew was cleared to taxi to the run-up area at the north end of the arpt for a run-up. At that time, the wind was reported from 360 deg at 8 KTS. The C-130 crew stopped on the run-up pad facing the wind & began a run-up. In the meantime, a Cessna…NTSB LAX83LA113Accident · No injuriesLimited investigationFinal reportCessna U206G · Palm Springs, CAThe acft was blown onto its nose & wing while taxiing on the ramp. According to tower personnel the wind had been variable from 200 to 300 deg with some gusts as high as 35K.NTSB ATL83LA108Accident · No injuriesLimited investigationFinal reportCessna 172 · Marietta, GAThe aircraft collided with a parked van while taxiing from landing at mccollum airport,Marietta,GA. The acft was being demonstrated to a prospective buyer who was in the left front seat with the owner in the right seat. After a flight fromatlanta,GA they…NTSB FTW83AA104Accident · No injuriesFinal reportCessna 550 · Houston, TXAfter landing on rwy 31L, the aircrew of N100VV requested clearance to turn off to the right at midfield onto rwy 22. The request was approved & the aircrew was instructed to use caution for a cherokee proceeding from the opposite direction. The plt of N100VV…NTSB SEA83FA054Accident · No injuriesField investigationFinal reportPiper PA-34-200T · Seattle, WAThe aircraft collided with another parked aircraft while taxiing to takeoff. The time was dawn and the taxiway lights were on. The taxiing pilot allowed his aircraft to stray and collided with a parked PA-34. Both aircraft were damaged substantially. The…NTSB CHI83LA100Accident · No injuriesLimited investigationFinal reportPiper PA-28-180 · Chicago, ILThe acft collided with a parked acft on the ramp. The student pilot started the acft on a snow covered icy ramp at nightthe parking brakes were set but when the engine started the acft taxied into another acft. After the accident the brakesof the acft were…NTSB FTW83IA094Incident · No injuriesIncident investigationFinal reportBoeing B-737-200 · Lubbock, TXDuring taxi to takeoff the acft slid off the taxiway into the snow and became stuck. The taxiway was covered with snow &ice.NTSB LAX83IA073Incident · No injuriesIncident investigationFinal reportBoeing 747-123 · Los Angeles, CAThe left main landing gear collapsed while the acft was taxiing for takeoff. Dissambly revealed that the outer cylinder was shattered & metallurgical examination revealed abrasive grinding & environmetally accelerated fatigue prior to rapidfracture.NTSB FTW83LA083Accident · No injuriesLimited investigationFinal reportPiper PA-28R-200 · Bandera, TXThe pilot stated that after a normal landing, he taxied to the end of the runway in order to allow another aircraft to land. He than taxied about 70 ft off the runway into a grass turnaround/taxi area where the aircraft hit an 18 inch deep hole with the left…NTSB LAX83FUJ11Accident · No injuriesFinal reportDouglas A26C · Phoenix, AZThe left gear retracted. The modification of the acft for experimental use reduced access to the rudder trim control with the gear selector in the down position. With the selector in neutral, it was possible to apply loads to the gear which removed the gear…NTSB LAX83LUG12Accident · No injuriesFinal reportPiper J-3 · Rubidoux, CAPilot taxiing to ramp when gust of wind blew aircraft over. Wind was variable, gusting 25 k.NTSB FTW83LA071Accident · No injuriesLimited investigationFinal reportCessna T337G · Pampa, TXThe plt stated he ran the battery down while trying to start the engs. After obtaining a battery charger & a long extension cord he charged the battery & was able to start the engs. While he was returning the charger to the hangar the acft rolled into a…NTSB SEA83LA031Accident · No injuriesLimited investigationFinal reportCessna 172L · Vancouver, WAAfter landing, the pilot began taxiing to the parking area. While taxiing, he came to an area where he tried to taxi between a fuel truck and a Beech baron. The pilot stated that he misjudged the distance between his right wing tip and the fuel truck and the…NTSB DEN83LA026Accident · No injuriesLimited investigationFinal reportBoeing 737-291 · Denver, CODuring a "power-back" operation from the terminal gate, a ground signal person and two wing walker were used in accordance with procedures. After reverse thrust was applied and the aircraft was rolling backwards. The signal person communicated an emergency…NTSB ATL83LA051Accident · No injuriesLimited investigationFinal reportBellanca 8KCAB · Atkinson, NCThe pilot decided to land on a private strip due to strong gusty winds and thunderstorms. The pilot landed without incident and began to back taxi on the runway when the left main landing gear went into a mud hole off the side of the runway. The aircraft…NTSB NYC83LA036Accident · No injuriesLimited investigationFinal reportFokker F-27-100 · New Haven, CTAircraft collided with a power cart as taxi to takeoff began.NTSB NYC83LA031Accident · No injuriesLimited investigationFinal reportCessna 172RG · Middletown, PAAfter landing the tower directed the pilot to back taxi on the runway. After clearing the runway the pilot taxied straight ahead with proper control deflections for a 10 degree strong wind behind the left wing. A strong gusty wind was encountered causing the…NTSB ANC83LA016Accident · No injuriesLimited investigationFinal reportCessna 180 · Naknek, AKDuring a power-on taxi turn the pilot reported he was about to strike a 6-FT embankment. The pilot added full power and flaps and the aircraft left the water, flew over an embankment, but the skis caught bushes on top of the bank. The landing gear was…NTSB MKC83LA029Accident · Minor injuriesLimited investigationFinal reportCessna 172M · Warrenburg, MOPilot had to taxi 4000 feet on runway. Aircraft became airborne, hit ground, and nosed over during this time. One witness said aircraft looked like it was taking off & stalled. Pilot said he was only going 20 mph.NTSB CHI83LA039Accident · Serious injuriesLimited investigationFinal reportPiper PA-28-151 · New Hudson, MIThe pilot was giving a plane ride to his brother, his brother's grandson and the child's mother. The child's grandmother wanted to take pictures and walked into the parking area next to the taxiway. While looking through the viewfinder, her depth perception…NTSB ATL83LA026Accident · No injuriesLimited investigationFinal reportCessna 172N · Loris, SCWhile taxiing from ramp left wingtip struck a van parked in the tie-down area.NTSB MKC83LA015Accident · No injuriesLimited investigationFinal reportCessna 172P · Kansas City, MOPilot taxiing to takeoff went on a roadway instead of a taxiway and collided with a sign post. The taxiway was marked by signs and yellow paint lines on surface where pilot became disoriented and left taxiway to follow road.NTSB ATL83LA022Accident · No injuriesLimited investigationFinal reportBeech B90 · Winston-Salem, NCThe pilot was on a flight to deliver the aircraft for routine maintenance. He stated that he lost right braking action as he was approaching the maintenance hanger. He attempted to maintain directional control with propeller reversing, but the left wing hit…NTSB NYC83LA044Accident · No injuriesLimited investigationFinal reportPiper PA-18-150 · Little Ferry, NYStudent pilot step-taxiing from landing collided with a submerged object in the river and damaged the float. The river was at low tide.NTSB CHI83LA028Accident · No injuriesLimited investigationFinal reportPiper PA-30 · Columbus, OHThe pilot taxiied onto 8 foot culvert after landing. Pilot complained of taxiway markings and lighting. He also said he never saw the culvert.NTSB NYC83IA013Incident · No injuriesIncident investigationFinal reportPiper J3C-65 · Augusta, METhe student and flight instructor (CFI) of Cessna 172, N5742T, started to taxi while the student and CFI of Piper JC3-65, N25973, were landing. The Cessna aircrew saw the Piper land and turn off onto the same taxiway that they were on, but from the opposite…NTSB LAX83FUG04Accident · No injuriesFinal reportCessna 402B · Upland, CAThe pilot stated that after he landed and turned off the runway to taxi, he heard a loud report (explosion) from the right wing. He evacuated the aircraft and found the skin separated from the top and bottom leading edge of the right wing. Soot was found…NTSB LAX83LA017Accident · Minor injuriesLimited investigationFinal reportCessna 182 · Deer Valley, AZPilot could not get aircraft started so he got out and pulled prop. Engine started and with no one aboard the aircraft taxiied into two parked aircraft.NTSB ATL83LA015Accident · No injuriesLimited investigationFinal reportPiper PA-23-250 · N. Myrtle Beach, SCThe pilot set the parking brake after starting the aircraft and diverted his attention to the checklist. When he looked up the aircraft was moving. The pilot attempted to stop the aircraft by both pushing the toe brakes and pulling the parking brake. The…NTSB MKC83LA011Accident · No injuriesLimited investigationFinal reportCessna 172PII · Hutchinson, KSPilot made three go-arounds because of gusty winds. While taxiing to tiedown downwind the wind blew the aircraft over. Winds gusting to 25 KTS.NTSB CHI83LA021Accident · No injuriesLimited investigationFinal reportSwearingen SA227-AC · Indianapolis, INThe left wing struck a building during taxi into the passenger gate. Ground personnel were stationed on each side of the aircraft.NTSB MKC83LA007Accident · No injuriesLimited investigationFinal reportSmith Miniplane Mini · Lexington, MODuring taxi for takeoff the pilot smelled fuel fumes in the cockpit and noticed fuel leakage under the fuel tank, located above the pilots leg. The pilot then parked the aircraft and shutdown the engine. A fire started after he deplaned and consumed the…NTSB SEA83LA005Accident · No injuriesLimited investigationFinal reportBeech C35 · Seattle, WAWhile hand propping to start, the engine went to full power. The pilot gained access to the controls as the aircraft began to move against the locked brakes. However, he was unable to stop the plane before it hit a Beech 58P, N3664G. The pilot reported that…NTSB FTW83LA014Accident · No injuriesLimited investigationFinal reportCessna 414A · San Antonio, TXAfter takeoff, the pilot was unable to get an up-and-locked indication after attempting to retract the landing gear. He extended the gear and got a safe indication (down-and-locked). He returned to the airport and landed. While taxiing off the runway, the…NTSB ATL83LA007Accident · No injuriesLimited investigationFinal reportBeech S35 · Macon, GAAfter landing and coming to a stop on the runway, the pilot made a 180 degree turn to proceed to a taxiway and began cleaning up the cockpit. During the turn, the gear collapsed. The pilot stated that he inadvertently raised the gear handle instead of the…NTSB LAX83LA021Accident · No injuriesLimited investigationFinal reportCessna 150 · Peoria, AZWhile taxiing to the ramp the aircraft's left wing struck a chain link fence causing substantial damage to the aircraft.NTSB ANC83IA001Incident · No injuriesIncident investigationFinal reportPiper PA-32-300 · Near Port Heide, AKAccording to the pilot, he was back taxiing along a beach after landing and while attempting to make a turn the nose gear collapsed. On examination, the pilot found that a bolt in the nose gear steering mechanism had failed due to excessive wear. This allowed…NTSB LAX83LA004Accident · No injuriesLimited investigationFinal reportPiper PA-28-140 · Palm Springs, CAWhile taxiing for takeoff the aircraft's left wing struck the nose of a Cessna 337, N547SE, which spun to the left and damaged a Piper PA-28, N8163E. The pilot stated that the Cessna 337 was 3 1/2 feet beyond alignment with other aircraft and extended into…NTSB CHI82DA353Accident · No injuriesFinal reportPiper PA-23-250 · Fort Wayne, INPlt taxied off rwy onto grass to give way to landing traffic. Paved taxiways are not available & 50 ft either side of runway is used for taxiing with the grass being kept mowed. Before he was able to taxi back onto the paved rwy the ground gave way & the nose…NTSB MKC83LA012Accident · No injuriesLimited investigationFinal reportCessna 150 · Nichols, IAThe pilot taxiied into a soft spot on his private airstrip which raised the wing. The wind got under the wing and flipped the aircraft over.NTSB NYC82DA231Accident · No injuriesFinal reportPiper PA-38-112 · Pomona, NJWhile taxiing from landing, the pilot attempted to pass between a parked aircraft and a parked fuel truck. The wingtip of the taxiing aircraft hit a fender on the truck.NTSB CHI82DA346Accident · No injuriesFinal reportPiper PA-23-250 · Holland, MIPilot taxiing to takeoff collided with fuel pumps.NTSB MKC82DA172Accident · No injuriesFinal reportErcoupe 415C · Andover, KSPilot reported he was taxiing and turned to avoid animals. Aircraft then collided with a tree. He had given two other versions verbally of how the damage occurred.NTSB SEA82DYK12Accident · No injuriesFinal reportCessna 210 · Rosenburg, ORThe pilot attempted to hand start the aircraft due to a weak battery. The pilot told passenger to hold the brakes and assumed the passenger knew how, because of his many hours of flight time (as a passenger). When the engine started the aircraft began to move…NTSB ATL82DA253Accident · No injuriesFinal reportPiper PA-34 · Campbellsville, KYWhile taxiing to a hangar the left wheel went off the taxiway causing the left gear to collapse.NTSB MIA82DA178Accident · No injuriesFinal reportDouglas C-47 · Charlotte AmaliThe pilot reported normal braking pressure failed while taxiing on the ramp. He attempted to steer clear of other aircraft, but collided with two parked DC-3 aircraft. No determination of the nature of the braking problem was made.NTSB MKC82DA151Accident · No injuriesFinal reportBell 47G-2A · Washington, IAThe helicopter was being air taxied to the refueling location when it crashed. The pilot said he had lifted off and was about 6 ft AGL with about 20 KTS forward speed when he suddenly felt a snap and the cyclic went full left. The helicopter became…NTSB FTW82DA339Accident · Minor injuriesFinal reportNorth American AT-6A · Abilene, TXThe pilot landed on runway after the T-6 landed on grass to right of the runway. The T-6 turned toward the ramp and crossed path of the Cessna on the runway. A collision occurred as the Cessna pilot tried to go-around and overfly the AT-6.