# NTSB investigations, 2020: Sys/Comp malf/fail (non-power)

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.

## Latest cases

- [NTSB ERA21LA068](https://openairdocs.org/ntsb/ERA21LA068.md): Beech V35A · Attalla, AL · Accident · 1 fatal · Class 3 · Limited · Final report · Dec 12, 2020 · N5470U · Destroyed
  > A loss of control inflight and the failure of a component of the up elevator flight control system due to fatigue, which rendered recovery from a right descending turn improbable.
- [NTSB ERA21LA062](https://openairdocs.org/ntsb/ERA21LA062.md): Ercoupe 415 · South Boston, VA · Accident · No injuries · Class 3 · Limited · Final report · Dec 6, 2020 · N2674H · Substantial damage
  > The improper installation of a fuel filter screen cover gasket, which resulted in its failure, fuel starvation, and a subsequent total loss of engine power during cruise flight. Contributing to the accident was the unapproved fuel sight gauge, which obscured…
- [NTSB CEN21LA070](https://openairdocs.org/ntsb/CEN21LA070.md): Piper PA38 · Franklin, AR · Accident · 2 fatal · Class 3 · Limited · Final report · Nov 30, 2020 · N9879T · Destroyed
  > The impairment of both pilots from carbon monoxide exposure due to a degraded muffler. Contributing to the accident was the inadequate maintenance inspection, which failed to detect the degraded muffler.
- [NTSB ERA21LA044](https://openairdocs.org/ntsb/ERA21LA044.md): Cessna 305 · Ellenville, NY · Accident · No injuries · Class 4 · Limited · Final report · Nov 14, 2020 · N5179G · Substantial damage
  > The failure of the right brake master cylinder lock seal spring washer.
- [NTSB CEN21WA038](https://openairdocs.org/ntsb/CEN21WA038.md): Cessna 208 · Pickle Lake, Canada · Incident · No injuries · Class 5 · Foreign · Oct 27, 2020 · CFPCC · No damage
- [NTSB ERA21LA031](https://openairdocs.org/ntsb/ERA21LA031.md): Sparrowhawk II · North Myrtle Beach, SC · Accident · No injuries · Class 4 · Limited · Final report · Oct 7, 2020 · N40380 · Substantial damage
  > A ruptured fuel line, which resulted in fuel starvation to the engine and a total loss of engine power.
- [NTSB CEN21LA023](https://openairdocs.org/ntsb/CEN21LA023.md): Evolution Revolt · Durango, CO · Accident · No injuries · Class 4 · Limited · Final report · Oct 4, 2020 · N912RE · Substantial damage
  > The pilot’s loss of directional control during landing following a hard landing and failure of the right main tire.
- [NTSB ENG21WA005](https://openairdocs.org/ntsb/ENG21WA005.md): ATR ATR72 · Makassar, Indonesia · Incident · Class 5 · Foreign · Oct 3, 2020 · PK-WGT · No damage
- [NTSB CEN20WA418](https://openairdocs.org/ntsb/CEN20WA418.md): Sikorsky S92 · Sola, Norway · Incident · No injuries · Class 4 · Foreign · Sep 25, 2020 · LN-ONQ · No damage
- [NTSB CEN20CA416](https://openairdocs.org/ntsb/CEN20CA416.md): Cessna 172RG · Lafayette, IN · Accident · No injuries · Class 4 · Data collection · Final report · Sep 21, 2020 · N6330V · Substantial damage
  > The separation failure of a landing gear system hydraulic line and its compression fitting during cruise flight, which resulted in a partial gear up landing.
- [NTSB ANC20LA098](https://openairdocs.org/ntsb/ANC20LA098.md): Cessna 182 · King Salmon, AK · Accident · No injuries · Class 3 · Limited · Final report · Sep 21, 2020 · N182KT · Substantial damage
  > The fatigue fracture failure of the left main landing gear U-bolt during landing, which resulted in the collapse and separation of the left main landing gear spring.
- [NTSB WPR20CA298](https://openairdocs.org/ntsb/WPR20CA298.md): Cessna 208 · Whitmore, AZ · Accident · No injuries · Class 4 · Data collection · Final report · Sep 7, 2020 · N186GC · Substantial damage
  > A loss of directional control during landing due to a flat main landing gear tire, which resulted in a lateral runway excursion and impact with terrain.
- [NTSB WPR20LA288](https://openairdocs.org/ntsb/WPR20LA288.md): Cessna 210 · Chino, CA · Accident · No injuries · Class 3 · Limited · Final report · Aug 26, 2020 · N9540T · Substantial damage
  > The failure of the engine-driven hydraulic pump, which resulted in the main landing gear not fully extending and locking into place during landing. Contributing to the accident was the failure of the emergency gear extension system for reasons that could not…
- [NTSB WPR20LA301](https://openairdocs.org/ntsb/WPR20LA301.md): Lake LA4 · Rawlins, WY · Accident · 1 fatal · Class 3 · Limited · Final report · Aug 25, 2020 · N93AB · Substantial damage
  > The pilot’s decision to depart despite a known mechanical trim malfunction and with a high-density altitude and the airplane at or above its maximum gross weight.
- [NTSB DCA20WA141](https://openairdocs.org/ntsb/DCA20WA141.md): Boeing 737 · Mexico City, Mexico · Incident · No injuries · Foreign investigation · Aug 24, 2020 · N806NN · No damage
  > The DGAC of Mexico has notified the NTSB of an incident involving a Boeing 737 airplane that occurred on August 24, 2020. The NTSB has appointed a U.S. Accredited Representative to assist the DGAC's investigation under the provisions of ICAO Annex 13.All…
- [NTSB CEN20LA353](https://openairdocs.org/ntsb/CEN20LA353.md): Air Tractor AT602 · Inverness, MS · Accident · No injuries · Class 3 · Limited · Final report · Aug 20, 2020 · N604MG · Substantial damage
  > The pilot’s decision to move the power control lever into beta during flight, which resulted in the power control lever and associated linkage becoming stuck in the beta position.
- [NTSB DCA20LA138](https://openairdocs.org/ntsb/DCA20LA138.md): Boeing 767 · Los Angeles, CA · Accident · Serious injuries · Class 3 · Limited · Final report · Aug 19, 2020 · N146FE · Substantial damage
  > The left main landing gear’s failure to extend due to the separation of the brake rod retaining hardware from the aft inboard wheel for reasons that could not be determined based on the available evidence.
- [NTSB CEN20LA330](https://openairdocs.org/ntsb/CEN20LA330.md): Robinson R44 · Logan, IA · Accident · Serious injuries · Class 3 · Limited · Final report · Aug 8, 2020 · N89LA · Substantial damage
  > The failure of the lower actuator bearing support brackets, which resulted in the misalignment of the clutch actuator, a loss of belt tension on the main rotor drive system, and a subsequent forced landing.
- [NTSB ERA20LA259](https://openairdocs.org/ntsb/ERA20LA259.md): Beech 400 · Montgomery, AL · Accident · No injuries · Class 3 · Limited · Final report · Jul 22, 2020 · N425BJ · Substantial damage
  > Landing with the left main landing gear retracted due to the failure of the landing gear control unit, which resulted in substantial damage.
- [NTSB WPR20LA226](https://openairdocs.org/ntsb/WPR20LA226.md): Boeing B75 · Chino, CA · Accident · No injuries · Class 3 · Limited · Final report · Jul 5, 2020 · N61445 · Substantial damage
  > The pilot’s failure to maintain directional control during the landing roll.
- [NTSB CEN20LA263](https://openairdocs.org/ntsb/CEN20LA263.md): Piper PA32 · Eveleth, MN · Accident · Minor injuries · Class 3 · Limited · Final report · Jul 5, 2020 · N4079R · Destroyed
  > The seizure of the airplane’s engine-driven fuel pump due to internal contamination, which led to a total loss of engine power. The source of the contamination could not be determined based on available evidence.
- [NTSB ERA20LA237](https://openairdocs.org/ntsb/ERA20LA237.md): Piper PA46 · Titusville, FL · Accident · No injuries · Class 3 · Limited · Final report · Jul 3, 2020 · N89MA · Substantial damage
  > The loss of directional control during landing due to the fracture of the steering horn bolts, which rendered the nosewheel steering ineffective and resulted from the airplane being towed over the left turn limits at an undetermined time before the accident.
- [NTSB GAA20WA115](https://openairdocs.org/ntsb/GAA20WA115.md): Beech 900XP · Paris, France · Incident · No injuries · Foreign investigation · Jun 26, 2020 · F-HFCS · Minor damage
  > The government of France has notified the NTSB of an accident involving a BEECH 900XP airplane that occurred on June 26, 2020. The NTSB has appointed a U.S. Accredited Representative to assist the government of France's investigation under the provisions of…
- [NTSB ERA20CA200](https://openairdocs.org/ntsb/ERA20CA200.md): Vans RV8 · Hampton, GA · Accident · No injuries · Class 4 · Data collection · Final report · May 21, 2020 · N665HM · Substantial damage
  > A right main landing gear break malfunction during landing. Contributing to the accident was a worn right main landing gear caliper pin and pressure plate hole.
- [NTSB ERA20LA192](https://openairdocs.org/ntsb/ERA20LA192.md): Beech F90 · Knoxville, TN · Accident · No injuries · Class 3 · Limited · Final report · May 18, 2020 · N960V · Substantial damage
  > A failure of the left main landing gear scissors, which resulted in a landing gear collapse following a precautionary landing with the landing gear in an intermediate position..
- [NTSB CEN20LA179](https://openairdocs.org/ntsb/CEN20LA179.md): Cessna P210 · Burlington, WI · Accident · 1 fatal · Class 3 · Limited · Final report · May 15, 2020 · N1JA · Substantial damage
  > The pilot did not maintain a safe altitude during the visual approach, and subsequently lost control which resulted an impact with trees and terrain.
- [NTSB CEN20LA175](https://openairdocs.org/ntsb/CEN20LA175.md): Beech 1900 · San Antonio, TX · Accident · No injuries · Class 3 · Limited · Final report · May 9, 2020 · N31704 · Substantial damage
  > The failure of the left main landing gear upper drag leg arm due to substandard mechanical properties, which resulted in a collapse of the landing gear upon landing.
- [NTSB ERA20CA130](https://openairdocs.org/ntsb/ERA20CA130.md): Cessna 172 · West Palm Beach, FL · Accident · No injuries · Data collection · Final report · Mar 17, 2020 · N66046 · Substantial damage
  > The failure of the nosewheel steerage linkage during takeoff, which resulted in a loss of directional control and impact with an obstacle during an attempted aborted landing.
- [NTSB CEN20CA114](https://openairdocs.org/ntsb/CEN20CA114.md): Vans RV8 · Harrison, OH · Accident · No injuries · Data collection · Final report · Mar 4, 2020 · N878DZ · Substantial damage
  > The malfunction of the steerable tailwheel, which resulted in a loss of directional control during the landing roll and subsequent impact with the precision approach path indicator lights system.
- [NTSB WPR20LA104](https://openairdocs.org/ntsb/WPR20LA104.md): Piper PA46 · San Jose, CA · Accident · No injuries · Class 3 · Limited · Final report · Feb 28, 2020 · N304LA · Substantial damage
  > The failure to properly service the hydraulic power pack prevented a normal landing gear extension. Contributing to the accident was the failure of the landing gear emergency release valve to function properly for reasons that could not be determined based on…
- [NTSB DCA20WA094](https://openairdocs.org/ntsb/DCA20WA094.md): Boeing 737 · Monterrey, Mexico · Incident · No injuries · Foreign investigation · Feb 27, 2020 · N379DA
  > The DGAC of Mexico has notified the NTSB of an incident involving a Boeing 737 airplane that occurred on February 27, 2020. The NTSB has appointed a U.S. Accredited Representative to assist the DGAC's investigation under the provisions of ICAO Annex 13.All…
- [NTSB ERA20CA100](https://openairdocs.org/ntsb/ERA20CA100.md): Cessna 402 · Barnstable, MA · Accident · No injuries · Data collection · Final report · Feb 12, 2020 · N409BK · Substantial damage
  > The pilot's failure to properly secure the crew hatch door before takeoff, which resulted in the door’s forward hinge assembly tearing from its fuselage mount point.
- [NTSB CEN20CA079](https://openairdocs.org/ntsb/CEN20CA079.md): Air Tractor AT-504 · Fort Morgan, CO · Accident · No injuries · Data collection · Final report · Feb 8, 2020 · N970FA · Substantial damage
  > The pilot's improper landing flare, which resulted in a bounced landing, and his subsequent failure to maintain directional control, which resulted in the left main landing gear tire bursting and the tailwheel assembly failing.
- [NTSB WPR20WA106](https://openairdocs.org/ntsb/WPR20WA106.md): Aerospatiale AS350 · Bankstown Aerodrome, Australia · Incident · No injuries · Foreign investigation · Feb 5, 2020 · VH-UAH · No damage
  > The government of Australia has notified the NTSB of an accident involving a Aerospatiale AS350 helicopter that occurred on February 05, 2020. The NTSB has appointed a U.S. Accredited Representative to assist the government of Australia's investigation under…
- [NTSB ERA20CA103](https://openairdocs.org/ntsb/ERA20CA103.md): Piper PA28RT · Fort Myers, FL · Accident · No injuries · Data collection · Final report · Feb 2, 2020 · N8320H · Substantial damage
  > The fracture of the right main landing gear torque link bolt on landing, which resulted in the landing gear assembly rotating freely, the subsequent loss of directional control, and the landing gear collapsing.
- [NTSB CEN20LA069](https://openairdocs.org/ntsb/CEN20LA069.md): Cirrus SR22 · Woody Creek, CO · Accident · No injuries · Class 3 · Limited · Final report · Jan 27, 2020 · N288WT · Substantial damage
  > Water trapped in the static system, which resulted in incorrect airspeed display information and the pilot’s forced landing.
- [NTSB ERA20LA077](https://openairdocs.org/ntsb/ERA20LA077.md): Velocity Elite RG · St. Petersburg, FL · Accident · No injuries · Class 3 · Limited · Final report · Jan 14, 2020 · N78BM · Substantial damage
  > A failure of the propeller pitch change electric motor, which resulted in an improper setting for takeoff and a subsequent runway overrun. Also causal was the inadequate maintenance and inspection of the propeller system and the pilot’s failure to follow the…
- [NTSB ANC20LA013](https://openairdocs.org/ntsb/ANC20LA013.md): Piper PA31 · Fairbanks, AK · Accident · No injuries · Class 3 · Limited · Final report · Jan 12, 2020 · N4112K · Substantial damage
  > The improper installation of a hydraulic line at the right main landing gear (MLG) unlock actuator, which resulted in a total loss of system hydraulic pressure and failure of the landing gear to extend. Contributing to the accident was the failure of the…
- [NTSB ERA20FA068](https://openairdocs.org/ntsb/ERA20FA068.md): Cessna 172 · Newborn, GA · Accident · 1 fatal · Class 3 · Field · Final report · Jan 6, 2020 · N1612F · Destroyed
  > The pilot’s impairment/incapacitation from carbon monoxide poisoning due to a degraded muffler. Contributing to the accident was the pilot’s failure to properly maintain the airplane.

## The whole list in SQL

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

```sql
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") = 2020
  AND c."mKey" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '330' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent"))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/330/sequence?year=2020

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