# NTSB investigations, WI: Taxi

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

Page 1 of 2 · 90 cases

## Latest cases

- [NTSB CEN25LA293](https://openairdocs.org/ntsb/CEN25LA293.md): Piper PA-31T3 · Appleton, WI · Accident · No injuries · Class 4 · Limited · Final report · Jul 26, 2025 · N401VA · Substantial damage
  > The pilot’s failure to maintain control of the airplane on the ground, which resulted in a collision with a parked airplane.
- [NTSB CEN24LA294](https://openairdocs.org/ntsb/CEN24LA294.md): Mooney M20J · Appleton, WI · Incident · No injuries · Class 4 · Limited · Final report · Jul 24, 2024 · N555ED · Minor damage
  > The pilot’s failure to maintain adequate wingtip clearance while taxiing. Contributing to the accident was the ambiguous nonstandard parking at the time of the incident.
- [NTSB CEN22LA346](https://openairdocs.org/ntsb/CEN22LA346.md): Meschler Gary R RV-4 · Oshkosh, WI · Accident · No injuries · Class 4 · Limited · Final report · Jul 28, 2022 · N79KM · 2 aircraft · Substantial damage
  > The failure of the pilot of N694V (RV-8) to maintain clearance from the preceding airplane, N79KM (RV-4), while taxiing for takeoff, which resulted in an on-ground collision.
- [NTSB CEN22LA188](https://openairdocs.org/ntsb/CEN22LA188.md): Beech B-99 · Milwaukee, WI · Accident · No injuries · Class 3 · Limited · Final report · Apr 30, 2022 · N699CZ · Substantial damage
  > A right main landing gear collapse due to fatigue failure of the landing gear drag leg support fitting.
- [NTSB CEN22LA182](https://openairdocs.org/ntsb/CEN22LA182.md): Piper-Harris J3C-65 · Hartford, WI · Accident · No injuries · Class 4 · Limited · Final report · Apr 21, 2022 · N9721Y · Substantial damage
  > The flight instructor lost control of the airplane while taxiing in gusty wind conditions.
- [NTSB CEN21LA336](https://openairdocs.org/ntsb/CEN21LA336.md): Driver RV-7 · Oshkosh, WI · Accident · No injuries · Class 3 · Limited · Final report · Jul 23, 2021 · N977RV · 2 aircraft · Substantial damage
  > The RV-8 pilot’s failure to account for the position of the RV-7 behind him during the landing roll in a staggered landing formation, which resulted in a ground collision of the two airplanes. Contributing to the accident was the self-induced pressure created…
- [NTSB CEN20LA436](https://openairdocs.org/ntsb/CEN20LA436.md): Piper J3 · Hartford, WI · Accident · No injuries · Class 4 · Limited · Final report · Aug 30, 2020 · N88204 · Substantial damage
  > The pilot’s loss of situation awareness which resulted in landing in a grass area and the subsequent collision with a runway marker.
- [NTSB CEN17LA090](https://openairdocs.org/ntsb/CEN17LA090.md): Cessna 172B · Prairie Du Sac, WI · Accident · No injuries · Limited investigation · Final report · Dec 28, 2016 · N6941X · Substantial damage
  > The pilot's decision to taxi the airplane from the roadway and his subsequent failure to maintain clearance from signs and a fence after a successful emergency landing following a total loss of engine power.
- [NTSB CEN13CA187](https://openairdocs.org/ntsb/CEN13CA187.md): Champion 7GCAA · Oshkosh, WI · Accident · No injuries · Data collection · Final report · Feb 2, 2013 · N9691S · Substantial damage
  > Fatigue cracking and failure of the left wheel strut mount resulting in collapse of the left main landing gear during taxi.
- [NTSB CEN11CA523](https://openairdocs.org/ntsb/CEN11CA523.md): Cessna 195 · Oshkosh, WI · Accident · No injuries · Data collection · Final report · Jul 28, 2011 · N195SM · Substantial damage
  > The failure of the left brake which resulted in a ground-loop.
- [NTSB CEN09LA093](https://openairdocs.org/ntsb/CEN09LA093.md): Mcdonnell Douglas DC-9-50 · Madison, WI · Accident · No injuries · Limited investigation · Final report · Dec 3, 2008 · N782NC · Substantial damage
  > The collision between the tug and the airplane during towing as a result of sliding on the snow covered runway.
- [NTSB CHI07LA092](https://openairdocs.org/ntsb/CHI07LA092.md): Socata TB-20 Trinidad · Rhinelander, WI · Accident · No injuries · Limited investigation · Final report · Mar 19, 2007 · N900Y · Substantial damage
  > The failure of the pilot to maintain directional control of the airplane during taxi. A contributing factor was the gusting winds and sign.
- [NTSB CHI07FA060](https://openairdocs.org/ntsb/CHI07FA060.md): Beechcraft BE99 · Milwaukee, WI · Accident · Minor injuries · Field investigation · Final report · Jan 25, 2007 · N699CZ · 2 aircraft · Substantial damage
  > The failure of both pilots to adequately scan for and avoid other aircraft traffic during taxi operations, and the failure of Air Traffic Control to issue a traffic advisory to both of the pilots. A contributing factor to the accident was the night time light…
- [NTSB CHI07CA055](https://openairdocs.org/ntsb/CHI07CA055.md): Cessna 150M · Bristol, WI · Accident · No injuries · Data collection · Final report · Jan 5, 2007 · N63332 · Substantial damage
  > The pilot's selection of unsuitable terrain to taxi on for takeoff. A factor was the soft terrain condition.
- [NTSB CHI07LA021](https://openairdocs.org/ntsb/CHI07LA021.md): Boeing 717-200 · Milwaukee, WI · Accident · No injuries · Limited investigation · Final report · Nov 8, 2006 · N904ME · 2 aircraft · Minor damage
  > The failure of ground personnel to verify the clearance between the airplanes prior to signaling the crew tha the crew of the other airplane that they were cleared to taxi.
- [NTSB CHI06FA206](https://openairdocs.org/ntsb/CHI06FA206.md): Grumman TBM-3 · Oshkosh, WI · Accident · 1 fatal · Field investigation · Final report · Jul 30, 2006 · N420GP · 2 aircraft · Minor damage
  > The Avenger pilot's visual lookout was inadequate and he failed to maintain clearance from the RV-6. Contributing factors were the Avenger's restricted visibility and the RV-6.
- [NTSB CHI04LA083](https://openairdocs.org/ntsb/CHI04LA083.md): Cessna 195 · Manitowoc, WI · Accident · No injuries · Limited investigation · Final report · Feb 19, 2004 · N4351V · Minor damage
  > The Cessna 195 pilot's failure to maintain clearance from the Cessna 177RG while taxiing to the ramp after landing. A contributing factor was the restricted forward visibility (blind spot) of the Cessna 195 due to the engine cowling. An additional factor was…
- [NTSB CHI03LA017](https://openairdocs.org/ntsb/CHI03LA017.md): Cessna 172 · Neenah, WI · Accident · No injuries · Limited investigation · Final report · Oct 17, 2002 · N46459 · Substantial damage
  > The pilot failed to maintain clearance from the post. Factors included the post and the sun glare.
- [NTSB CHI02CA279](https://openairdocs.org/ntsb/CHI02CA279.md): Cessna 120 · Brookfield, WI · Accident · Serious injuries · Data collection · Final report · Sep 6, 2002 · N2601N · No damage
  > The inadequate visual outlook by the pilot during taxi.
- [NTSB CHI02LA124](https://openairdocs.org/ntsb/CHI02LA124.md): Cessna 185F · Cumberland, WI · Accident · No injuries · Limited investigation · Final report · Apr 29, 2002 · N8081E · Substantial damage
  > the failure of the pilot to maintain directional control after encountering high winds and gusty winds during taxi from landing.
- [NTSB CHI00LA143](https://openairdocs.org/ntsb/CHI00LA143.md): Cessna T207A · Green Bay, WI · Accident · Minor injuries · Limited investigation · Final report · May 24, 2000 · N774EA · Substantial damage
  > the improper compensation for the wind conditions. A factor in the accident was the wind shear.
- [NTSB CHI00IA062](https://openairdocs.org/ntsb/CHI00IA062.md): British Aerospace Jetstream 3101 · Milwaukee, WI · Incident · No injuries · Incident investigation · Final report · Jan 21, 2000 · N842JS · No damage
  > the hold-short clearance not being followed by the flightcrew, which resulted in a near collision with the departing Boeing 727-200.
- [NTSB CHI00FA050](https://openairdocs.org/ntsb/CHI00FA050.md): Israel Aircraft Industries 1124A · Milwaukee, WI · Accident · No injuries · Field investigation · Final report · Dec 26, 1999 · N422BC · Substantial damage
  > The failure of the first stage pressure reducer in the oxygen regulator assembly.
- [NTSB CHI99LA302](https://openairdocs.org/ntsb/CHI99LA302.md): Cessna 150K · Kenosha, WI · Accident · No injuries · Limited investigation · Final report · Aug 14, 1999 · N6001G · Substantial damage
  > The pilot's attention being diverted into the cockpit and not maintaining visual separation with the fuel truck. A factor in the accident was the fuel truck.
- [NTSB CHI99TA149](https://openairdocs.org/ntsb/CHI99TA149.md): Cessna 180J · Necedah, WI · Accident · Minor injuries · Final report · May 10, 1999 · N59DW · Substantial damage
  > The pilot's failure to maintain compensation for the wind conditions. A factor was the gusting tailwind.
- [NTSB CHI99LA097](https://openairdocs.org/ntsb/CHI99LA097.md): Cessna 182E · East Troy, WI · Accident · No injuries · Limited investigation · Final report · Feb 21, 1999 · N3177Y · Substantial damage
  > the collapse of the right main landing gear from a preexisting fatigue crack.
- [NTSB CHI98LA297](https://openairdocs.org/ntsb/CHI98LA297.md): Cessna 180 · Oshkosh, WI · Accident · No injuries · Limited investigation · Final report · Aug 1, 1998 · N111WF · 2 aircraft · Substantial damage
  > the pilot of the other airplane did not maintain proper clearance.
- [NTSB CHI97LA244](https://openairdocs.org/ntsb/CHI97LA244.md): Piper PA-24-250 · Fond Du Lac, WI · Accident · Minor injuries · Limited investigation · Final report · Aug 2, 1997 · N720MB · Substantial damage
  > the pilot's improper use of the throttle control friction lock, and his inadequate remedial action. Related factors were his lack of experience in type of aircraft, the pilot's habit interference, and the presence of parked (standing) aircraft.
- [NTSB CHI96LA354](https://openairdocs.org/ntsb/CHI96LA354.md): Cessna 172L · Delavan, WI · Accident · No injuries · Limited investigation · Final report · Sep 29, 1996 · N7216Q · Substantial damage
  > the pilot's failure to assure the airplane was properly secured prior to hand-propping the engine.
- [NTSB CHI96LA078](https://openairdocs.org/ntsb/CHI96LA078.md): Piper J3C-65 · Mount Horeb, WI · Accident · Serious injuries · Limited investigation · Final report · Jan 14, 1996 · N1412N · No damage
  > failure of the pilot to see-and-avoid the pedestrian. Factors relating to the accident were: the pilot's inadequate preflight preparation, his landing on a closed airstrip, and the snow covered terrain.
- [NTSB CHI95LA252](https://openairdocs.org/ntsb/CHI95LA252.md): Stevens Acro II · Oshkosh, WI · Accident · No injuries · Limited investigation · Final report · Jul 31, 1995 · N40LF · 2 aircraft · Minor damage
  > the failure of the pilot of the Acro II, N40LF, to maintain clearance from the Cessna 172, N5542R.
- [NTSB CHI95LA194](https://openairdocs.org/ntsb/CHI95LA194.md): Piper J-5A · Wausau, WI · Accident · No injuries · Limited investigation · Final report · Jun 23, 1995 · N40888 · Substantial damage
  > the pilot's misjudgment of the clearance between the airplane and the fuel pumps.
- [NTSB CHI95LA010](https://openairdocs.org/ntsb/CHI95LA010.md): Great Lakes 2T-1A-2 · Mt. Horeb, WI · Accident · No injuries · Limited investigation · Final report · Oct 10, 1994 · N933EB · Substantial damage
  > the pilot's excessive braking while taxiing from landing.
- [NTSB CHI93LA294](https://openairdocs.org/ntsb/CHI93LA294.md): North American F-51 · Fond Du Lac, WI · Accident · No injuries · Limited investigation · Final report · Jul 28, 1993 · N6327T · 2 aircraft · Minor damage
  > the pilot-in-command of the F-51's diverted attention and failure to maintain a visual outlook.
- [NTSB CHI93LA223](https://openairdocs.org/ntsb/CHI93LA223.md): Bellanca 7ECA · Osceola, WI · Accident · No injuries · Limited investigation · Final report · Jun 27, 1993 · N11854 · Substantial damage
  > The pilot in command's failure to maintain directional control.
- [NTSB CHI91LA019](https://openairdocs.org/ntsb/CHI91LA019.md): Cessna 150 · La Crosse, WI · Accident · No injuries · Limited investigation · Final report · Oct 30, 1990 · N7641G · Substantial damage
  > Inadequate visual outlook by the PIC.
- [NTSB CHI89FA153](https://openairdocs.org/ntsb/CHI89FA153.md): Cessna 182Q · Oshkosh, WI · Accident · No injuries · Field investigation · Final report · Jul 30, 1989 · N95915 · 2 aircraft · Substantial damage
  > The pilot of Cessna N95914 misjudging the distance necessary to avoid collisions with a the standing Piper N5937W.
- [NTSB CHI88FA179](https://openairdocs.org/ntsb/CHI88FA179.md): Piper PA-30 · Oshkosh, WI · Accident · 1 fatal · Field investigation · Final report · Jul 29, 1988 · N43GS · No damage
- [NTSB CHI87LA075](https://openairdocs.org/ntsb/CHI87LA075.md): Aeronca 11AC · Dodgeville, WI · Accident · No injuries · Limited investigation · Final report · Feb 5, 1987 · N86079 · Substantial damage
  > While taxiing after landing on runway 12, a tailwind was encountered. The acft spun around, slid backwards off the rwy, down a steep embankment and struck a large rock. The plt reported winds from 270 degrees at 12 knots gusting to 18 knots.
- [NTSB CHI86FEP05](https://openairdocs.org/ntsb/CHI86FEP05.md): Beech C-23 · Milwaukee, WI · Accident · No injuries · Final report · Jun 18, 1986 · N66345 · Substantial damage
  > During taxi for takeoff the plt inadvertently taxied onto an access road and struck and unlit sign. The taxiway had been resurfaced and no taxi guide lines had been repainted.
- [NTSB CHI86LA085](https://openairdocs.org/ntsb/CHI86LA085.md): Cessna 401B · Milwaukee, WI · Accident · No injuries · Limited investigation · Final report · Feb 9, 1986 · N777CS · Substantial damage
  > While taxiing to park, the left main landing gear collapsed. Investigation revealed that the left hand gear support had torn from the wing rib to which it was bolted. On the FAA malfunction or defect report submitted by the operator, company officials stated…
- [NTSB CHI85FA170](https://openairdocs.org/ntsb/CHI85FA170.md): Beech E18S · Janesville, WI · Accident · No injuries · Field investigation · Final report · Apr 21, 1985 · N68V · Substantial damage
  > On April 20,1985 at approx. 2100HRS local time a Beechcraft model E185 N68Y owned and operated by blackhawk airways inc. was conducting a normal runup in preparation for a flight from Janesville, WI. (Jvl) to chicago IL. (Ord). At the completion of the of the…
- [NTSB CHI83LA147](https://openairdocs.org/ntsb/CHI83LA147.md): Cessna 150 · Oshkosh, WI · Accident · No injuries · Limited investigation · Final report · Mar 20, 1983 · N704WN · Substantial damage
  > The student plt was on a supervised, solo, x-country flt from mosinee, WI, to Oshkosh, WI, green bay, WI, then return to mosinee. The first leg of the flight was flown with no problem. Before takeoff at oshkosk, the student was taxiing southbound with a left…
- [NTSB CHI81DEP46](https://openairdocs.org/ntsb/CHI81DEP46.md): Piper PA-22 · La Pointe, WI · Accident · No injuries · Closed · Sep 14, 1981 · N3551P · Substantial damage
- [NTSB CHI81DER12](https://openairdocs.org/ntsb/CHI81DER12.md): Piper J3C-65 · Long Lake, WI · Accident · No injuries · Closed · Jan 18, 1981 · N1459N · Substantial damage
- [NTSB CHI79DEP65](https://openairdocs.org/ntsb/CHI79DEP65.md): Cessna 150 · Waukesha, WI · Accident · No injuries · Closed · Jul 24, 1979 · N3416V · Substantial damage
- [NTSB CHI79DEP64](https://openairdocs.org/ntsb/CHI79DEP64.md): Beech 23 · Appleton, WI · Accident · No injuries · Closed · Jul 21, 1979 · N2373W · Substantial damage
- [NTSB CHI79DEP55](https://openairdocs.org/ntsb/CHI79DEP55.md): Piper PA-28 · Lake Geneva, WI · Accident · No injuries · Closed · Jul 1, 1979 · N6981C · Substantial damage
- [NTSB CHI79DEP19](https://openairdocs.org/ntsb/CHI79DEP19.md): Grumman AA-1C · Madison, WI · Accident · No injuries · Closed · Dec 26, 1978 · N9649U · Substantial damage
- [NTSB CHI78FEP22](https://openairdocs.org/ntsb/CHI78FEP22.md): Cessna 182E · East Troy, WI · Accident · No injuries · Closed · Mar 4, 1978 · N2860Y · Substantial damage

Next page: https://openairdocs.org/ntsb-phases/250/cases.md?state=WI&page=2

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
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" = 'WI' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT case_mkey FROM case_phases WHERE main = 250)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-phases/250/cases?state=WI

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