# NTSB investigations: Maneuvering

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 165 of 378 · 18,851 cases

## Cases, newest first

- [NTSB ANC91FA050](https://openairdocs.org/ntsb/ANC91FA050.md): Piper PA-18-150 · Tatitlek, AK · Accident · 1 fatal · Field investigation · Final report · Apr 9, 1991 · N6966D · 2 aircraft · Substantial damage
  > Failure of both pilots to see-and-avoid each other (inadequate visual lookout). A factor related to the accident was: inadequate communication among all participating aircrews.
- [NTSB LAX91LA163](https://openairdocs.org/ntsb/LAX91LA163.md): Schempp-Hirth Ventus B/16.6 · Lake Cobb, CA · Accident · Minor injuries · Limited investigation · Final report · Apr 7, 1991 · N81PT · Substantial damage
  > That the pilot's visual lookout was improper. Contributing to this accident was the unmarked transmission wire.
- [NTSB NYC91LA107](https://openairdocs.org/ntsb/NYC91LA107.md): Enstrom F28A · Leetonia, OH · Accident · Serious injuries · Limited investigation · Final report · Apr 6, 1991 · N58KC · Substantial damage
  > The helicopter hover performance was exceeded by the pilot and his failure to perform a normal approach to a landing. Factors were the high winds and the tailwind condition.
- [NTSB LAX91LA160](https://openairdocs.org/ntsb/LAX91LA160.md): Burnett, Jerry D. Challenger II · Bullhead City, AZ · Accident · No injuries · Limited investigation · Final report · Apr 6, 1991 · N4555J · Substantial damage
  > The disintegration of the propeller. Contributing to this accident was the deterioration of aircraft control and the nonavilability of suitable landing terrain.
- [NTSB FTW91LA062](https://openairdocs.org/ntsb/FTW91LA062.md): Cessna A188B · Tipton, OK · Accident · No injuries · Limited investigation · Final report · Apr 6, 1991 · N4165J · Substantial damage
  > Failure of the pilot to maintain poroper clearance above obstacles. A factor was the sun glare.
- [NTSB FTW91LA061](https://openairdocs.org/ntsb/FTW91LA061.md): Cessna 150D · San Ygnacio, TX · Accident · Serious injuries · Limited investigation · Final report · Apr 6, 1991 · N4437U · Destroyed
  > Power loss due to carburetor ice and a malfunctioning carburetor heat control and the pilot's loss of control of the airplane.
- [NTSB LAX91LA170](https://openairdocs.org/ntsb/LAX91LA170.md): Sunrise Ultralight Spitfire II · Elk Grove, CA · Accident · Serious injuries · Limited investigation · Final report · Apr 5, 1991 · UNREG · Destroyed
  > The failure of the operator to maintain adequate airspeed.
- [NTSB CHI91LA124](https://openairdocs.org/ntsb/CHI91LA124.md): Cessna C172N · North Liberty, IN · Accident · Minor injuries · Limited investigation · Final report · Apr 4, 1991 · N737VP · Substantial damage
  > The pilot's inadvertent touchdown and inadequate remedial action. Related factors are the low pass maneuver, and the soft terrain.
- [NTSB FTW91LA058](https://openairdocs.org/ntsb/FTW91LA058.md): Cessna A188B · Hobart, OK · Accident · Serious injuries · Limited investigation · Final report · Apr 3, 1991 · N53215 · Destroyed
  > The pilot's failure to maintain clearance with known objects.
- [NTSB BFO91LA039](https://openairdocs.org/ntsb/BFO91LA039.md): Piper PA-25-235D · Chesapeake, VA · Accident · No injuries · Limited investigation · Final report · Apr 3, 1991 · N54917 · Substantial damage
  > The pilot's failue to maintain adequate airspeed after the loss of engine power for undetermined reasons.
- [NTSB LAX91LA155](https://openairdocs.org/ntsb/LAX91LA155.md): Schweizer SGS1-26-D · Warner Springs, CA · Accident · Serious injuries · Limited investigation · Final report · Apr 2, 1991 · N7562 · Destroyed
  > That the pilot used poor planning/decision and failed to maintain flying speed. Contributing to his accident was the loss of thermal lift and lack of experience in this type of aircraft.
- [NTSB CHI91IA120](https://openairdocs.org/ntsb/CHI91IA120.md): Cessna 172RG · West Chicago, IL · Incident · No injuries · Incident investigation · Final report · Apr 2, 1991 · N9592B · Minor damage
  > Failure of the splined shaft on the right main landing gear pivot assembly. A factor related to the incident was inadequate design of the landing gear pivot assembly.
- [NTSB FTW91LA053](https://openairdocs.org/ntsb/FTW91LA053.md): Robinson R-22B · Spring, TX · Accident · Minor injuries · Limited investigation · Final report · Mar 28, 1991 · N8050B · Substantial damage
  > Power loss due to carburetor ice, the pilot's failure to use carburetor heat, and his failure to apply adequate cushioning collective pitch during the flare segment of the autorotation. A factor in the accident was the pilot's improper autorotation technique.
- [NTSB LAX91FA143](https://openairdocs.org/ntsb/LAX91FA143.md): Beech 58P · Vail, AZ · Accident · 2 fatal · Field investigation · Final report · Mar 27, 1991 · N27L · Destroyed
  > The failure of both pilots to maintain control of the airplane.
- [NTSB ANC91LA038](https://openairdocs.org/ntsb/ANC91LA038.md): Cessna 207 · Saint Marys, AK · Accident · Minor injuries · Limited investigation · Final report · Mar 27, 1991 · N9968M · Substantial damage
  > The pilot-in-command's failure to maintain VFR flight in instrument meteorological conditions while maneuvering on a VFR flight plan. Factors related to the accident was the pic's failure to evaluate the weather conditions that existed.
- [NTSB MIA91FA107](https://openairdocs.org/ntsb/MIA91FA107.md): Beech 95-B55 · Chassahowitzka, FL · Accident · 3 fatal · Field investigation · Final report · Mar 24, 1991 · N95BE · Destroyed
  > The pilot in commands continued VFR flight into IFR conditions resulting in an inflight loss of control and an inflight collision with the ground.
- [NTSB CHI91DEE03](https://openairdocs.org/ntsb/CHI91DEE03.md): Air Command Gyrocopter · Lansing, IL · Accident · Minor injuries · Final report · Mar 24, 1991 · N447MR · Substantial damage
  > The pilot's delayed pullup. A factor in the accident was the pilot's exessive rate of descent during the spiral maneuver.
- [NTSB BFO91LA034](https://openairdocs.org/ntsb/BFO91LA034.md): Schweizer SGS 2-33 · Buchanan, VA · Accident · Serious injuries · Limited investigation · Final report · Mar 24, 1991 · N2451W · Substantial damage
  > The pilot's decision to attempt the takeoff with unfavorable winds.
- [NTSB LAX91LA140](https://openairdocs.org/ntsb/LAX91LA140.md): Sikorsky S-58J · Chowchilla, CA · Accident · Serious injuries · Limited investigation · Final report · Mar 22, 1991 · N27AR · Substantial damage
  > 1) The pilot not following the performance data for the aircraft, and 2) the pilot's inflight decision to turn the aircraft, which was at or near maximum gross weight, in such a direction that required more power than was available for the given flight…
- [NTSB ANC91LA036](https://openairdocs.org/ntsb/ANC91LA036.md): Piper PA-12 · Moose Creek, AK · Accident · 2 fatal · Limited investigation · Final report · Mar 20, 1991 · N3419M · Substantial damage
  > The pilot-in-command's failure to maintain aircraft control, proper altitude not maintained, and failure to maintain flying speed. Contributing to the accident was the high altitude terrain.
- [NTSB MIA91LA103](https://openairdocs.org/ntsb/MIA91LA103.md): Cessna 150L · Miami, FL · Accident · No injuries · Limited investigation · Final report · Mar 19, 1991 · N10629 · Substantial damage
  > Total loss of engine power due to inadvertent use of the mixture control by the student, inadequate supervision by the CFI, and delayed remedial action by the CFI resulting in the off airport landing.
- [NTSB LAX91LA137](https://openairdocs.org/ntsb/LAX91LA137.md): Sikorsky H-19/S55 · Richvale, CA · Accident · No injuries · Limited investigation · Final report · Mar 19, 1991 · N9894 · Substantial damage
  > The failure of the engine's number 4 cylinder intake valve keeper. Trees under the helicopter at the time of the loss of engine power were factors in the accident.
- [NTSB SEA91LA067](https://openairdocs.org/ntsb/SEA91LA067.md): Clyde L. King Osprey II · Aurora, OR · Accident · No injuries · Limited investigation · Final report · Mar 16, 1991 · N69CK · Substantial damage
  > A loss of engine power due to fuel starvation because of an inadequate component and inadequate fuel system design.
- [NTSB LAX91FA134](https://openairdocs.org/ntsb/LAX91FA134.md): Cessna 172RG · Buckeye, AZ · Accident · 2 fatal · Field investigation · Final report · Mar 16, 1991 · N6439 · Destroyed
  > The pilot of the airplane exceeding the certificated never exceed velocity. The overloading of the wing attachment fittings while maneuvering was a factor in the accident.
- [NTSB FTW91LA050](https://openairdocs.org/ntsb/FTW91LA050.md): Hughes 269A · Addison, TX · Accident · No injuries · Limited investigation · Final report · Mar 16, 1991 · N62269 · Substantial damage
  > The pilot's failure to maintain directional control during landing.
- [NTSB CHI91LA109](https://openairdocs.org/ntsb/CHI91LA109.md): Cessna 172K · Bridgman, MI · Accident · No injuries · Limited investigation · Final report · Mar 16, 1991 · N78195 · Substantial damage
  > The pilot's failure to correct a descent. A factor in the accident was the pilot's maneuvering at an improper altitude.
- [NTSB MIA91LA101](https://openairdocs.org/ntsb/MIA91LA101.md): Air Tractor AT-401 · Avon, MS · Accident · Serious injuries · Limited investigation · Final report · Mar 15, 1991 · N73135 · Substantial damage
  > Loss of engine power for undetermined reasons during a turn while on an aerial application flight. Contributing to the accident was failure of the left magneto due to failure of a phenolic gear which drives the rotating magnet.
- [NTSB LAX91LA128](https://openairdocs.org/ntsb/LAX91LA128.md): Bell 47G-5A · Farmington, CA · Accident · No injuries · Limited investigation · Final report · Mar 10, 1991 · N59403 · Substantial damage
  > The contamination of the engine induction air filter. Soft terrain during the touchdown was a factor in the accident.
- [NTSB DEN91FA049](https://openairdocs.org/ntsb/DEN91FA049.md): Beech F33A · Sterling, CO · Accident · 2 fatal · Field investigation · Final report · Mar 10, 1991 · N4179S · Destroyed
  > Poor judgement of the pilot and his misjudgement of altitude while buzzing over glassy water. His lack of visual ques to judge altitude over glassy water was a related factor.
- [NTSB LAX91LA126](https://openairdocs.org/ntsb/LAX91LA126.md): Cessna 152 · Tucson, AZ · Accident · No injuries · Limited investigation · Final report · Mar 8, 1991 · N69116 · Substantial damage
  > Engine failure due to oil starvation caused by a rotation of the main bearing. A factor in the accident was the failure of the operator maintenance personnel to accomplish an engine overhaul within the interval specified by the manufacturer.
- [NTSB CHI91DCQ04](https://openairdocs.org/ntsb/CHI91DCQ04.md): Cessna A-188 · Harper, KS · Accident · 1 fatal · Final report · Mar 8, 1991 · N8189V · Substantial damage
  > The pilot inadvertently stalling the airplane.
- [NTSB DEN91FA051](https://openairdocs.org/ntsb/DEN91FA051.md): Beech 58 · Whites City, NM · Accident · 2 fatal · Field investigation · Final report · Mar 5, 1991 · N2019V · Destroyed
  > The pilot's inflight decision to fly at low altitude. Factors were: turbulence and downdrafts.
- [NTSB NYC91FA080](https://openairdocs.org/ntsb/NYC91FA080.md): Beech F-33A · West Brookfield, MA · Accident · Serious injuries · Field investigation · Final report · Mar 4, 1991 · N77Y · Destroyed
  > The decision of the pilot to fly the airplane in conditions that prevented him from seeing and avoiding higher terrain. Factors related to the accident were the pilot's decision to not follow the instrument approach into palmer, and the reduced visibility due…
- [NTSB LAX91FA116](https://openairdocs.org/ntsb/LAX91FA116.md): Piper PA-28R-200 · Monterey Park, CA · Accident · 1 fatal · Field investigation · Final report · Mar 3, 1991 · N5290T · Destroyed
  > Suicide.
- [NTSB LAX91LA120](https://openairdocs.org/ntsb/LAX91LA120.md): Boeing A75 · Marana, AZ · Accident · No injuries · Limited investigation · Final report · Mar 2, 1991 · N803RB · 2 aircraft · Substantial damage
  > The failure of the pilot in the trailing airplane to maintain clearance from the lead airplane.
- [NTSB MIA91FA089](https://openairdocs.org/ntsb/MIA91FA089.md): Cessna 152 · La Belle, FL · Accident · 2 fatal · Field investigation · Final report · Feb 25, 1991 · N25938 · Destroyed
  > The pilot-in-command/cfi improper supervision of the dual student. This resulted in an in flight loss of control, stall/spin, and collision with terrain for failure to maintain airspeed while maneuvering in a turn.
- [NTSB CHI91DCJ01](https://openairdocs.org/ntsb/CHI91DCJ01.md): Cessna 172N · Western, NE · Accident · 1 fatal · Final report · Feb 25, 1991 · N738LL · Destroyed
  > Spatial disorientation which resulted in a loss of aircraft control. A factor related to the accident was VFR flight into IMC.
- [NTSB BFO91LA025](https://openairdocs.org/ntsb/BFO91LA025.md): Cessna 182C · Bonnyman, KY · Accident · 1 fatal · Limited investigation · Final report · Feb 24, 1991 · N8696T · Destroyed
  > The pilot's failure to maintain adequate obstacle clearance. Contributing was inadequate altitude.
- [NTSB CHI91LA097](https://openairdocs.org/ntsb/CHI91LA097.md): Hughes 269C · North Mankato, MN · Accident · Serious injuries · Limited investigation · Final report · Feb 20, 1991 · N8955F · Destroyed
  > The fatique failure of the tail boom support strut attachment cluster and the improper inspection of the cluster attachment.
- [NTSB NYC91LA078](https://openairdocs.org/ntsb/NYC91LA078.md): Piper PA-23-250 · Punxsutawney, PA · Accident · Serious injuries · Limited investigation · Final report · Feb 19, 1991 · N5512Y · Destroyed
  > Intentional flight by the pilot into instrument meteorological conditions which resulted in a inflight collision with rising terrain, which was obscured by fog. A factor related to the accident was the pilots evaluation of the weather.
- [NTSB ATL91LA059](https://openairdocs.org/ntsb/ATL91LA059.md): Air Tractor AT-301 · Pavo, GA · Accident · No injuries · Limited investigation · Final report · Feb 18, 1991 · N8770S · Substantial damage
  > The failure of the no. 2 exhaust valve and cylinder head, which resulted in a total loss of engine power. A factor in the accident was the collision with a road sign during the forced landing.
- [NTSB LAX91FA106](https://openairdocs.org/ntsb/LAX91FA106.md): Piper PA-28-181 · Fredonia, AZ · Accident · 4 fatal · Field investigation · Final report · Feb 17, 1991 · N4384L · Destroyed
  > The pilot's inattention to the airspeed and subsequent loss of aircraft control after attempting VFR flight into adverse weather conditions. Contributing to the accident was the pilot's failure to recognize his limitations of his aircraft.
- [NTSB ANC91LA030](https://openairdocs.org/ntsb/ANC91LA030.md): Bell 206-B · Kodiak, AK · Accident · Minor injuries · Limited investigation · Final report · Feb 16, 1991 · N59568 · Substantial damage
  > A loss of control and collision with terrain after the helicopter entered a whiteout condition.
- [NTSB DEN91FA042](https://openairdocs.org/ntsb/DEN91FA042.md): Cessna U206 · Yampa, CO · Accident · 4 fatal · Field investigation · Final report · Feb 12, 1991 · N8014Z · Destroyed
  > Inadvertent accelerated stall by the pilot in command while attempting a turn in close proximity to terrain. A factor was the high altitude.
- [NTSB LAX91LA097](https://openairdocs.org/ntsb/LAX91LA097.md): Robinson R22A · Piru, CA · Accident · No injuries · Limited investigation · Final report · Feb 10, 1991 · N8491A · Substantial damage
  > Failure of the CFI to maintain main rotor RPM during a demonstrated autorotation.
- [NTSB ANC91LA027](https://openairdocs.org/ntsb/ANC91LA027.md): Cessna 207 · Kivalina, AK · Accident · Minor injuries · Limited investigation · Final report · Feb 10, 1991 · N9651M · Substantial damage
  > The pilot's failure in not identifying the weather conditions along the route. Contributing to the accident was improper in flight planning and decision by the PIC and the whiteout conditions.
- [NTSB ANC91LA026](https://openairdocs.org/ntsb/ANC91LA026.md): MBB BO-105-CBS-4 · Valdez, AK · Accident · Minor injuries · Limited investigation · Final report · Feb 10, 1991 · N5413D · Substantial damage
  > Was the pilot-in-command's failure to properly use the approval checklist, improper procedures and directives.
- [NTSB LAX91LA095](https://openairdocs.org/ntsb/LAX91LA095.md): Schweizer G-164B · Yuba City, CA · Accident · No injuries · Limited investigation · Final report · Feb 9, 1991 · N3633B · Substantial damage
  > The failure of the no. 5 cylinder due to fatigue. Contributing to this accident was the wet terrain and crops.
- [NTSB LAX91FA094](https://openairdocs.org/ntsb/LAX91FA094.md): Boeing N2S-3 · Sonoma, CA · Accident · 2 fatal · Field investigation · Final report · Feb 9, 1991 · N1065M · Destroyed
  > The pilot-in-command/cfi's performance of a low altitude aerobatic maneuver from which he failed to recover. Factors which contributed to the accident related to the pic's improper inflight decision, poor judgment, and his psychological condition.
- [NTSB LAX91LA092](https://openairdocs.org/ntsb/LAX91LA092.md): Cessna 150M · Buckeye, AZ · Accident · No injuries · Limited investigation · Final report · Feb 6, 1991 · N9433U · Substantial damage
  > That maintenance personnel failed to properly install the wings by not reconnecting the bolts at the bellcrank and performed an inadequate annual inspection.

Next page: https://openairdocs.org/ntsb-phases/450/cases.md?page=166

## 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."mKey" IN (SELECT case_mkey FROM case_phases WHERE main = 450)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-phases/450/cases?page=165

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.