# NTSB investigations: Continental IO-520 series, WA

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 3 · 111 cases

## Latest cases

- [NTSB WPR26LA016](https://openairdocs.org/ntsb/WPR26LA016.md): Beech S35 · Olympia, WA · Accident · No injuries · Class 4 · Limited · Final report · Oct 12, 2025 · N35S · Substantial damage
  > The pilot’s inadvertent retraction of the landing gear after landing.
- [NTSB WPR24FA285](https://openairdocs.org/ntsb/WPR24FA285.md): Cessna A185F · Kent, WA · Accident · 1 fatal · Class 3 · Field · Final report · Aug 24, 2024 · N61323 · Substantial damage
  > The pilot’s failure to properly configure the amphibious landing gear for a water landing, which resulted in a touchdown on the water with the wheels extended, noseover, and airplane submersion.
- [NTSB WPR23LA291](https://openairdocs.org/ntsb/WPR23LA291.md): Cessna A185F · Friday Habor, WA · Accident · No injuries · Class 4 · Limited · Final report · Jul 28, 2023 · N185GG · Substantial damage
  > The pilot’s loss of directional control during landing, which resulted in a ground loop.
- [NTSB WPR23LA189](https://openairdocs.org/ntsb/WPR23LA189.md): Cessna A185F · Twisp, WA · Accident · No injuries · Class 4 · Limited · Final report · May 14, 2023 · N185MG · Substantial damage
  > The pilot’s loss of directional control during landing, which resulted in a runway excursion and ground loop.
- [NTSB WPR23LA177](https://openairdocs.org/ntsb/WPR23LA177.md): Cessna 210M · Pasco, WA · Accident · No injuries · Class 3 · Limited · Final report · May 4, 2023 · N777CF · Substantial damage
  > Improper maintenance on the fuel outlet line to the fuel servo, which resulted in the line partially separating from the fuel outlet fitting and the subsequent fuel starvation and total loss of engine power.
- [NTSB WPR23LA089](https://openairdocs.org/ntsb/WPR23LA089.md): Beech 95-C55 · Yelm, WA · Accident · No injuries · Class 4 · Limited · Final report · Jan 12, 2023 · N225V · Substantial damage
  > The pilot’s failure to attain a proper touchdown point during landing with a tailwind which resulted in a runway over run. Contributing to the accident was a wet runway.
- [NTSB WPR22FA235](https://openairdocs.org/ntsb/WPR22FA235.md): Beech V35B · Vancouver, WA · Accident · 1 fatal · Class 3 · Field · Final report · Jun 28, 2022 · N444PM · Destroyed
  > The pilot’s decision to execute a steep turn to final approach, which resulted in an exceedance of the airplane’s critical angle of attack and an accelerated stall. Contributing to the accident was the improper positioning on base leg and the pilot’s…
- [NTSB WPR19LA200](https://openairdocs.org/ntsb/WPR19LA200.md): Beech 33 · Battleground, WA · Accident · No injuries · Class 3 · Limited · Final report · Jul 20, 2019 · N873BC · Substantial damage
  > A failure of the throttle control assembly for reasons that could not be determined based on available evidence, which resulted in a runway overrun and impact with an obstacle.
- [NTSB GAA19CA100](https://openairdocs.org/ntsb/GAA19CA100.md): Cessna A185 · Tacoma, WA · Accident · No injuries · Data collection · Final report · Dec 14, 2018 · N19EC · Substantial damage
  > The pilot's loss of directional control during the landing roll and his subsequent overapplication of left rudder, which resulted in the right wing impacting the runway.
- [NTSB GAA19CA055](https://openairdocs.org/ntsb/GAA19CA055.md): Cessna A185 · Reardan, WA · Accident · No injuries · Data collection · Final report · Nov 9, 2018 · N185PR · Substantial damage
  > The pilot receiving instruction's improper approach and landing flare in crosswind conditions, which resulted in a bounced landing and subsequent loss of directional control. Contributing to the accident was the flight instructor’s delayed remedial action.
- [NTSB WPR18TA243](https://openairdocs.org/ntsb/WPR18TA243.md): Beech 36 · Kelso, WA · Accident · No injuries · Final report · Aug 19, 2018 · N9031S · Substantial damage
  > The pilot's fuel mismanagement, which led to fuel starvation, a total loss of engine power, and the subsequent forced landing to a field.
- [NTSB GAA18CA023](https://openairdocs.org/ntsb/GAA18CA023.md): Cessna A185 · Tacoma, WA · Accident · No injuries · Data collection · Final report · Oct 24, 2017 · N19EC · Substantial damage
  > The pilot’s loss of directional control during the landing roll.
- [NTSB WPR14CA162](https://openairdocs.org/ntsb/WPR14CA162.md): Cessna 207 · Shaw Island, WA · Accident · No injuries · Data collection · Final report · Apr 8, 2014 · N685S · Substantial damage
  > The pilot's loss of directional control during the landing flare with a gusting tailwind.
- [NTSB WPR13CA422](https://openairdocs.org/ntsb/WPR13CA422.md): Beech 35 - Undesignat · Seattle, WA · Accident · No injuries · Data collection · Final report · Sep 21, 2013 · N5894S · Substantial damage
  > The pilot's distracted attention and failure to extend the landing gear, which resulted in a gear up landing.
- [NTSB WPR13CA246](https://openairdocs.org/ntsb/WPR13CA246.md): Cessna U206G · Friday Harbor, WA · Accident · No injuries · Data collection · Final report · May 14, 2013 · N707WJ · Substantial damage
  > A collision with a bird while on the downwind leg of the traffic pattern.
- [NTSB WPR11LA181](https://openairdocs.org/ntsb/WPR11LA181.md): Cessna A188 · Palouse, WA · Accident · Serious injuries · Limited investigation · Final report · Apr 1, 2011 · N5851G · Substantial damage
  > The pilot did not maintain adequate clearance from obstacles during a low-level aerial application maneuver.
- [NTSB WPR09CA276](https://openairdocs.org/ntsb/WPR09CA276.md): Cessna A185F · Wenatchee, WA · Accident · No injuries · Data collection · Final report · Jun 2, 2009 · N1015F · Substantial damage
  > The pilot's misjudged approach and failure to attain the proper touchdown point.
- [NTSB WPR09CA252](https://openairdocs.org/ntsb/WPR09CA252.md): Cessna 185E · Tacoma, WA · Accident · No injuries · Data collection · Final report · May 18, 2009 · N70083 · Substantial damage
  > The pilot's failure to maintain directional control while landing with a crosswind.
- [NTSB WPR09CA084](https://openairdocs.org/ntsb/WPR09CA084.md): Cessna U206E · Crane Island, San Juan Is., WA · Accident · No injuries · Data collection · Final report · Jan 14, 2009 · N9428G · Substantial damage
  > The pilot's failure to maintain directional control during landing. Contributing to the accident was the pilot's improper application of brakes.
- [NTSB SEA08CA176](https://openairdocs.org/ntsb/SEA08CA176.md): Cessna 210E · Auburn, WA · Accident · Minor injuries · Data collection · Final report · Aug 12, 2008 · N98KC · Substantial damage
  > A catastrophic engine failure due to the partial blockage of the lubricating oil galley in one of the crankshaft connecting rod journals, leading to the failure of the connecting rod cap.
- [NTSB LAX08FA244](https://openairdocs.org/ntsb/LAX08FA244.md): Cessna A185F · Shelton, WA · Accident · 2 fatal · Field investigation · Final report · Jul 24, 2008 · N6320N · Destroyed
  > The pilot's failure to attain and maintain adequate airspeed during initial climb, which resulted in an aerodynamic stall.
- [NTSB SEA08LA068](https://openairdocs.org/ntsb/SEA08LA068.md): Bellanca 17-30A · Mukilteo, WA · Accident · Serious injuries · Limited investigation · Final report · Feb 2, 2008 · N8794V · Substantial damage
  > Loss of engine power while on final approach for undetermined reasons. Contributing to the accident was a power line.
- [NTSB SEA07FA134](https://openairdocs.org/ntsb/SEA07FA134.md): Cessna 185 · Wilbur, WA · Accident · 1 fatal · Field investigation · Final report · May 28, 2007 · N9434N · Substantial damage
  > In-flight collision with terrain shortly after takeoff for undetermined reasons.
- [NTSB SEA07CA127](https://openairdocs.org/ntsb/SEA07CA127.md): Cessna A185F · Renton, WA · Accident · No injuries · Data collection · Final report · May 18, 2007 · N8045Q · Substantial damage
  > The pilot's loss of aircraft control during a landing attempt, which resulted in an inadvertent ground loop.
- [NTSB SEA07CA015](https://openairdocs.org/ntsb/SEA07CA015.md): Cessna 210E · Friday Harbor, WA · Accident · No injuries · Data collection · Final report · Oct 21, 2006 · N4942U · Substantial damage
  > An in-flight collision with a bird during takeoff.
- [NTSB SEA05LA141](https://openairdocs.org/ntsb/SEA05LA141.md): Cessna 206E · Stuart Island, WA · Accident · No injuries · Limited investigation · Final report · Jul 8, 2005 · N9428G · Substantial damage
  > The pilot's excessive airspeed on final for the current runway surface conditions, and the intentional obstruction avoidance maneuver he executed when it became clear the aircraft was about to go off the end of the runway. Factors include the pilot's improper…
- [NTSB SEA05FA136](https://openairdocs.org/ntsb/SEA05FA136.md): Beech E-55 · Lopez, WA · Accident · 2 fatal · Field investigation · Final report · Jul 2, 2005 · N686T · Destroyed
  > The pilot's failure to refuel the airplane which resulted in a dual loss of engine power during normal descent due to fuel exhaustion. A contributing factor was the incorrect installation of the left and right wing fuel sight gage/float assemblies by unknown…
- [NTSB SEA05LA110](https://openairdocs.org/ntsb/SEA05LA110.md): Beech A-36 · Tacoma, WA · Accident · No injuries · Limited investigation · Final report · May 31, 2005 · N9017V · Substantial damage
  > The malfunction of the fuel injection control system, for undetermined reasons, while the aircraft was on base leg for a full-stop landing. Factors include soft terrain in the area where the pilot found it necessary to perform a forced landing.
- [NTSB SEA05CA069](https://openairdocs.org/ntsb/SEA05CA069.md): Cessna A188B · Palouse, WA · Accident · No injuries · Data collection · Final report · Apr 4, 2005 · N4784Q · Substantial damage
  > The pilot's failure to maintain terrain clearance during the initial climb after takeoff. A tailwind, hilly terrain and inadequate airspeed were factors.
- [NTSB SEA05LA036](https://openairdocs.org/ntsb/SEA05LA036.md): Cessna U206F · Prevost, WA · Accident · No injuries · Limited investigation · Final report · Jan 14, 2005 · N8313Q · Substantial damage
  > The pilot not identifying unsafe landing conditions, and his subsequent intentional swerve during the landing roll resulting in impacting a ditch. Contributing factors were the ice/frost on the grass/dirt one-way runway (1,560 feet in length), the unexpected…
- [NTSB SEA05FA022](https://openairdocs.org/ntsb/SEA05FA022.md): Cessna 185F · Renton, WA · Accident · 1 fatal · Field investigation · Final report · Dec 5, 2004 · N532PC · Destroyed
  > The pilot's failure to maintain aircraft control when the flaps became jammed/stuck in their full-down position during a takeoff from a touch-and-go landing. Factors include a worn/disconnected flap latch mechanism, and the flaps being unable to be retracted.
- [NTSB SEA04FA169](https://openairdocs.org/ntsb/SEA04FA169.md): Cessna A185F · Toutle, WA · Accident · 1 fatal · Field investigation · Final report · Aug 21, 2004 · N7562Q · Destroyed
  > The pilot's continued flight into known adverse weather conditions. Inadequate preflight planning/preparation, trees, a low ceiling and no suitable terrain available for the landing were factors.
- [NTSB SEA04FA083](https://openairdocs.org/ntsb/SEA04FA083.md): Cessna 170B · Tenino, WA · Accident · 1 fatal · Field investigation · Final report · May 17, 2004 · N3510D · 2 aircraft · Destroyed
  > The pilot's failure to maintain an adequate visual lookout during cruise flight, which resulted in a midair collision between the two airplanes.
- [NTSB SEA04LA057](https://openairdocs.org/ntsb/SEA04LA057.md): Cessna A188B · Palouse, WA · Accident · No injuries · Limited investigation · Final report · Mar 25, 2004 · N731YZ · Substantial damage
  > The pilot's decision to takeoff downwind resulting in his inability to achieve a positive climb rate and an in-flight collision with terrain. Factors contributing to the accident included the rising terrain and the tailwind condition.
- [NTSB SEA04LA034](https://openairdocs.org/ntsb/SEA04LA034.md): Cessna 185F · Deer Park, WA · Accident · No injuries · Limited investigation · Final report · Jan 14, 2004 · N185WB · Substantial damage
  > The dual student pilot's failure to maintain directional control during the landing roll and the failure of the flight instructor to provide remedial action. A factor was snowbank.
- [NTSB SEA04LA007](https://openairdocs.org/ntsb/SEA04LA007.md): Cessna 185 · Trout Lake, WA · Accident · No injuries · Limited investigation · Final report · Oct 18, 2003 · N1841R · Substantial damage
  > The failure of the pilot to maintain directional control of the aircraft during the landing roll. A factor was the wet runway.
- [NTSB SEA03FA165](https://openairdocs.org/ntsb/SEA03FA165.md): Cessna 320D · Mazama, WA · Accident · 2 fatal · Field investigation · Final report · Apr 17, 2003 · N4178T · Substantial damage
  > The pilot's failure to maintain clearance from terrain while maneuvering. Mountainous terrain, trees and mountain obscuration were factors.
- [NTSB SEA03LA049](https://openairdocs.org/ntsb/SEA03LA049.md): Cessna 172G · Packwood, WA · Accident · No injuries · Limited investigation · Final report · Mar 24, 2003 · N4150L · Substantial damage
  > Loss of partial engine power for undetermined reasons during the initial climb after takeoff. Loose gravel/sandy was a factor during the landing roll.
- [NTSB SEA01LA025](https://openairdocs.org/ntsb/SEA01LA025.md): Cessna A185F · Lynwood, WA · Accident · No injuries · Limited investigation · Final report · Dec 3, 2000 · N7609Q · Substantial damage
  > Fuel exhaustion due to refueling was not performed by the pilot-in-command. Trees and a fence were factors.
- [NTSB SEA99FA144](https://openairdocs.org/ntsb/SEA99FA144.md): Beech F33A · White Swan, WA · Accident · 1 fatal · Field investigation · Final report · Aug 19, 1999 · N2291L · Substantial damage
  > Inadequate preflight planning/preparation and low airspeed. A dirt embankment, soft runway, and an excessive takeoff weight were factors.
- [NTSB SEA99LA140](https://openairdocs.org/ntsb/SEA99LA140.md): Cessna T210J · Sequim, WA · Accident · No injuries · Limited investigation · Final report · Jul 31, 1999 · N821SB · Substantial damage
  > The pilot's failure to adequately compensate for the changing wind conditions. Factors include a berm located off the east end of the runway and a tailwind.
- [NTSB SEA99LA119](https://openairdocs.org/ntsb/SEA99LA119.md): Cessna 185 · Renton, WA · Accident · No injuries · Limited investigation · Final report · Jul 14, 1999 · N532PC · Substantial damage
  > Failure of the pilot-in-command to maintain directional control after landing, resulting in a ground loop.
- [NTSB SEA99LA076](https://openairdocs.org/ntsb/SEA99LA076.md): Cessna A185E · Othello, WA · Accident · No injuries · Limited investigation · Final report · May 21, 1999 · N50AU · Substantial damage
  > The pilot's inadequate compensation for wind conditions after landing. Factors include gusty winds.
- [NTSB SEA98LA034](https://openairdocs.org/ntsb/SEA98LA034.md): Cessna U-206E · Friday Harbor, WA · Accident · No injuries · Limited investigation · Final report · Oct 9, 1997 · N9428G · Substantial damage
  > the pilot's failure to park with the aircraft headed into the wind in high wind conditions. A factor include the high wind condition.
- [NTSB SEA97LA143](https://openairdocs.org/ntsb/SEA97LA143.md): Cessna A188 · Richland, WA · Accident · No injuries · Limited investigation · Final report · Jun 17, 1997 · N9766V · Substantial damage
  > the pilot's failure to maintain airspeed. Inadequate in-flight planning and high obstructions that restricted evasive maneuvers were factors.
- [NTSB SEA97LA129](https://openairdocs.org/ntsb/SEA97LA129.md): Cessna 210D · Renton, WA · Accident · No injuries · Limited investigation · Final report · Jun 6, 1997 · N3908Y · Substantial damage
  > Landing gear hydraulic system power pack failure.
- [NTSB SEA96LA177](https://openairdocs.org/ntsb/SEA96LA177.md): Cessna U206F · Crane Island, WA · Accident · No injuries · Limited investigation · Final report · Aug 5, 1996 · N8313Q · Substantial damage
  > the pilot's failure to correctly judge the surface winds in the vicinity of the runway. Factors relating to the accident were: a tailwind during landing, a short runway with a wet surface, and an embankment/drop-off at the end of the airstrip.
- [NTSB SEA96LA085](https://openairdocs.org/ntsb/SEA96LA085.md): Aero Commander 200D · Covington, WA · Accident · No injuries · Limited investigation · Final report · Apr 28, 1996 · N2975T · Substantial damage
  > fuel starvation, due to the pilot's improper fuel management. The uneven terrain in the forced landing area was a related factor.
- [NTSB SEA95LA183](https://openairdocs.org/ntsb/SEA95LA183.md): Beech V35A · Chimacum, WA · Accident · Minor injuries · Limited investigation · Final report · Aug 14, 1995 · N8469N · Substantial damage
  > the improper top overhaul of the engine and subsequent release of the cylinder hold-down nuts/breakage of hold-down and through-bolts. Factors contributing to the accident were the fence posts and rough/uneven terrain.
- [NTSB SEA94LA242](https://openairdocs.org/ntsb/SEA94LA242.md): Cessna P206D · Lopez, WA · Accident · Minor injuries · Limited investigation · Final report · Sep 18, 1994 · N8761Z · Substantial damage
  > A worn throttle control lever.

Next page: https://openairdocs.org/ntsb.md?engine=17032&state=WA&page=2

## 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 c."eventStateOrRegion" = 'WA' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('17032'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=17032&state=WA

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