# NTSB investigations: Continental IO-520 series, 2004

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 · 70 cases

## Latest cases

- [NTSB CHI05FA048](https://openairdocs.org/ntsb/CHI05FA048.md): Beech S35 · Herman, WI · Accident · 2 fatal · Field investigation · Final report · Dec 25, 2004 · N5631K · Substantial damage
  > The installation of the improper cylinder base packing seals by maintenance personnel resulting in the loss of lubriation and subsequent failure of the number four connecting rod/bearing. A factor associated with the accident was the trees that the airplane…
- [NTSB ANC05CA019](https://openairdocs.org/ntsb/ANC05CA019.md): Cessna U206G · Illiamna, AK · Accident · No injuries · Data collection · Final report · Dec 24, 2004 · N9909Z · Substantial damage
  > The pilot's inadequate compensation for the gusty wind conditions, which resulted in a loss of control, and the airplane nosing over. A factor contributing to the accident was the gusty wind condition.
- [NTSB ANC05CA017](https://openairdocs.org/ntsb/ANC05CA017.md): Cessna U206G · Nunapitchuk, AK · Accident · No injuries · Data collection · Final report · Dec 16, 2004 · N496K · Substantial damage
  > The pilot's inadequate compensation for gusty wind conditions, which resulted in a loss of directional control, and collision with a ditch. Factors contributing to the accident were an icy taxiway and wind gusts.
- [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 ATL05FA032](https://openairdocs.org/ntsb/ATL05FA032.md): Cessna 421B · Apison, TN · Accident · 5 fatal · Field investigation · Final report · Dec 2, 2004 · N421SD · Destroyed
  > The pilot's improper identification of a partial loss of engine power on initial takeoff climb resulting in a collision with trees and the ground. A factor was a partial failure of the left engine starter adapter due to overload.
- [NTSB NYC05FA021](https://openairdocs.org/ntsb/NYC05FA021.md): Cessna 310R · Paeonian Spring, VA · Accident · 2 fatal · Field investigation · Final report · Nov 24, 2004 · N310DM · Substantial damage
  > The pilot's failure to follow the published instrument approach procedure, which resulted in an in-flight collision with terrain. A factor related to the accident was the low cloud ceiling.
- [NTSB ANC05LA015](https://openairdocs.org/ntsb/ANC05LA015.md): Cessna U206F · Bethel, AK · Accident · No injuries · Limited investigation · Final report · Nov 19, 2004 · N9644G · Substantial damage
  > The pilot's inadequate evaluation of the weather conditions, and his inadequate compensation for the wind conditions, which resulted in a loss of control and subsequent nose over during taxi from landing. A factor contributing to the accident was a tailwind.
- [NTSB LAX05FA034](https://openairdocs.org/ntsb/LAX05FA034.md): Beech A36 · Lake Havasu, CA · Accident · 2 fatal · Field investigation · Final report · Nov 14, 2004 · N6111C · Destroyed
  > the pilot's continued visual flight into instrument meteorological conditions leading to spatial disorientation and an in-flight loss of control.
- [NTSB MIA05CA034](https://openairdocs.org/ntsb/MIA05CA034.md): Beech 58 · Fort Pierce, FL · Accident · No injuries · Data collection · Final report · Nov 7, 2004 · N4545M · Substantial damage
  > The failure of the pilot to follow the checklist and extend the landing gear during landing resulting in a gear-up landing.
- [NTSB LAX05CA016](https://openairdocs.org/ntsb/LAX05CA016.md): Bellanca BL17-30 · Las Vegas, NV · Accident · Minor injuries · Data collection · Final report · Oct 25, 2004 · N4894V · Substantial damage
  > the pilot's inadequate fuel management, which resulted in fuel starvation and a loss of engine power.
- [NTSB CHI05LA014](https://openairdocs.org/ntsb/CHI05LA014.md): Cessna P206B · Taylorville, IL · Accident · 1 fatal · Limited investigation · Final report · Oct 24, 2004 · N8619Z · Destroyed
  > Aircraft control not possible by the pilot following a premature deployment of a parachute as a parachutist exited the jump airplane during cruise flight. The inverted spin encountered by the pilot was an additional cause.
- [NTSB ATL05FA008](https://openairdocs.org/ntsb/ATL05FA008.md): Beech F33A · Flat Rock, NC · Accident · 1 fatal · Field investigation · Final report · Oct 23, 2004 · N18303 · Substantial damage
  > The pilot experienced spatial disorientation, which resulted in a loss of control and the subsequent collision with the ground. Factors were low ceilings and fog.
- [NTSB SEA05LA009](https://openairdocs.org/ntsb/SEA05LA009.md): Cessna A185F · White Bird, ID · Accident · Minor injuries · Limited investigation · Final report · Oct 17, 2004 · N101AM · Substantial damage
  > The pilot's failure to attain the proper airspeed for takeoff and his improper soft-field takeoff procedure. Factors contributing to the accident included the pilot's improper preflight planning, the fence, and the closed exhaust stack.
- [NTSB DEN05LA008](https://openairdocs.org/ntsb/DEN05LA008.md): Cessna 210M · Salida, CO · Accident · No injuries · Limited investigation · Final report · Oct 10, 2004 · N732TE · Substantial damage
  > The pilot's inadequate preflight planning which failed to determine the fuel supply was inadequate resulting in fuel exhaustion and the loss of engine power.
- [NTSB ANC05CA004](https://openairdocs.org/ntsb/ANC05CA004.md): Cessna 185F · King Salmon, AK · Accident · Serious injuries · Data collection · Final report · Oct 10, 2004 · N5001R · Substantial damage
  > The pilot's failure to use a checklist, and to remove the flight control locks prior to flight, which resulted in an uncontrolled descent and in-flight collision with terrain/water.
- [NTSB DEN05CA001](https://openairdocs.org/ntsb/DEN05CA001.md): Cessna 185F · Santa Fe, NM · Accident · No injuries · Data collection · Final report · Oct 1, 2004 · N714MX · Substantial damage
  > the pilot's failure to maintain aircraft control during the landing roll resulting in a ground loop. Contributing to the accident was the crosswind.
- [NTSB DFW05CA021](https://openairdocs.org/ntsb/DFW05CA021.md): Bellanca BL-17-30A · Roanoke, TX · Accident · No injuries · Data collection · Final report · Sep 27, 2004 · N28086 · Substantial damage
  > The disconnection of the engine mixture control cable due to improper maintenance which resulted in a loss of engine power.
- [NTSB SEA04GA192](https://openairdocs.org/ntsb/SEA04GA192.md): Cessna U206G · Essex, MT · Accident · 3 fatal · Final report · Sep 20, 2004 · N206SM · Destroyed
  > The pilot's misidentification of the airplane's location, which resulted in his improper decision to fly into the wrong drainage, and his failure to maintain terrain clearance while executing a turn to reverse course after he realized his navigational error.…
- [NTSB SEA04FA190](https://openairdocs.org/ntsb/SEA04FA190.md): Cessna U206F · Stanley, ID · Accident · 1 fatal · Field investigation · Final report · Sep 14, 2004 · N20GV · Substantial damage
  > The pilot's inadequate in-flight planning/decision which resulted in VFR flight into IMC, and his failure to maintain aircraft control.
- [NTSB SEA04LA189](https://openairdocs.org/ntsb/SEA04LA189.md): Cessna P206A · Clearwater, ID · Accident · No injuries · Limited investigation · Final report · Sep 13, 2004 · N4661F · Substantial damage
  > A loss of engine power due to fatigue crack propagation of the number three piston pin while in cruise flight, leading to a power off forced landing in an open field. Factors include soft uphill terrain.
- [NTSB LAX04LA312](https://openairdocs.org/ntsb/LAX04LA312.md): Beech F33A · Fresno, CA · Accident · No injuries · Limited investigation · Final report · Sep 3, 2004 · N1854N · Substantial damage
  > the pilot's loss of pitch control authority during landing flare due to an autopilot system failure that inhibited control yoke movement. A factor was inadequate autopilot system maintenance.
- [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 FTW04CA218](https://openairdocs.org/ntsb/FTW04CA218.md): Beech BE-58 · Groveton, TX · Accident · No injuries · Data collection · Final report · Aug 20, 2004 · N8140R · Destroyed
  > The pilot's intentional ground loop to avoid colliding with deer that entered the runway during the landing roll. A contributing factor was the tall grass adjacent to the runway that prevented detection of the deer.
- [NTSB SEA04FA165](https://openairdocs.org/ntsb/SEA04FA165.md): Cessna T210L · Tulsa, OK · Accident · 3 fatal · Field investigation · Final report · Aug 17, 2004 · N2452S · Destroyed
  > The pilot's inadequate preflight inspection by his failure to secure the oil cap, which resulted in oil leakage on the windscreen, obstructing his vision, and his failure to maintain adequate airspeed.
- [NTSB CHI04LA227](https://openairdocs.org/ntsb/CHI04LA227.md): Beech V35B · Anderson, IN · Accident · Minor injuries · Limited investigation · Final report · Aug 15, 2004 · N6411S · Substantial damage
  > The in-flight loss of engine power during downwind for undetermined reasons. A factor was the tree the airplane impacted during the forced landing.
- [NTSB MIA04FA119](https://openairdocs.org/ntsb/MIA04FA119.md): Cessna U206B · Key West, FL · Accident · 1 fatal · Field investigation · Final report · Aug 14, 2004 · N3800G · Substantial damage
  > A loss of engine power for an undetermined reason during cruise flight, which resulted in the pilot ditching the airplane in ocean waters.
- [NTSB SEA04CA164](https://openairdocs.org/ntsb/SEA04CA164.md): Cessna U206G · Rose Lake, ID · Accident · No injuries · Data collection · Final report · Aug 13, 2004 · N9752Z · Substantial damage
  > The pilot's failure to maintain clearance with the powerlines on final approach which resulted in a hard landing. A factor contributing the to accident were the powerlines.
- [NTSB CHI04LA225](https://openairdocs.org/ntsb/CHI04LA225.md): Cessna A188B · Mylo, ND · Accident · 1 fatal · Limited investigation · Final report · Aug 12, 2004 · N92806 · Destroyed
  > The pilot's failure to maintain clearance from the windmill. The windmill was a contributing factor.
- [NTSB FTW04LA210](https://openairdocs.org/ntsb/FTW04LA210.md): Bellanca BL17-30 · Austin, TX · Accident · No injuries · Limited investigation · Final report · Aug 10, 2004 · N4700V · Substantial damage
  > The loss of engine power due to fuel starvation as result of the pilot's improper fuel management. A contributing factor was the lack of suitable terrain for the forced landing.
- [NTSB DEN04LA118](https://openairdocs.org/ntsb/DEN04LA118.md): Beech V35A · Grand Junction, CO · Accident · No injuries · Limited investigation · Final report · Aug 1, 2004 · N222S · Substantial damage
  > the pilot's improper planning and decision making resulting in the loss of engine power due to fuel starvation. Contributing factors include the insufficient time to completely extend the landing gear, and the lack of suitable terrain for a forced landing.
- [NTSB FTW04LA201](https://openairdocs.org/ntsb/FTW04LA201.md): Air Tractor AT-400 · Clayton, LA · Accident · Minor injuries · Limited investigation · Final report · Jul 31, 2004 · N3159W · Destroyed
  > The pilot's failure to maintain clearance from the high tension power lines.
- [NTSB ANC04LA099](https://openairdocs.org/ntsb/ANC04LA099.md): Cessna U206G · Yakutat, AK · Accident · No injuries · Limited investigation · Final report · Jul 29, 2004 · N9178G · Substantial damage
  > The pilot's inadequate preflight inspection, and his failure to secure the cargo door, which resulted in the cargo door coming open during the takeoff roll.
- [NTSB LAX04CA278](https://openairdocs.org/ntsb/LAX04CA278.md): Cessna A185F · Gridley, CA · Accident · No injuries · Data collection · Final report · Jul 24, 2004 · N93DM · Destroyed
  > The pilot's improper use of the rudder to correct for torque and P-factor effects and failure to maintain obstacle clearance.
- [NTSB LAX04FA271](https://openairdocs.org/ntsb/LAX04FA271.md): Beech 58 · Bishop, CA · Accident · 3 fatal · Field investigation · Final report · Jul 17, 2004 · N807Q · Destroyed
  > the pilot's continued VFR flight into marginal weather conditions with lowering ceilings in a box canyon in mountainous terrain, and his subsequent inability to maintain an adequate airspeed while maneuvering to reverse direction, which led to an accelerated…
- [NTSB SEA04CA138](https://openairdocs.org/ntsb/SEA04CA138.md): Cessna A185F · Cut Bank, MT · Accident · No injuries · Data collection · Final report · Jul 16, 2004 · N185S · Substantial damage
  > The pilot's failure to maintain directional control during the takeoff roll.
- [NTSB ATL04LA157](https://openairdocs.org/ntsb/ATL04LA157.md): Beech A45 · LaGrange, GA · Accident · Minor injuries · Limited investigation · Final report · Jul 16, 2004 · N134BH · Substantial damage
  > The maintenance personnel under-torquing of the crankcase throughbolts during top overhaul, which resulted in crankcase fretting, and the subsequent fatigue failure of the crankshaft at the No. 4 main journal. A factor was the lack of suitable terrain for…
- [NTSB MIA04LA102](https://openairdocs.org/ntsb/MIA04LA102.md): Beech V35B · Bay Saint Louis, MS · Accident · No injuries · Limited investigation · Final report · Jun 27, 2004 · N2167L · Substantial damage
  > The failure of the pilot to verify the landing gear was extended prior to touchdown resulting in a gear-up landing.
- [NTSB ANC04FA070](https://openairdocs.org/ntsb/ANC04FA070.md): Beech 36 · Talkeetna, AK · Accident · 1 fatal · Field investigation · Final report · Jun 26, 2004 · N7673N · Destroyed
  > The pilot's failure to maintain clearance from terrain during cruise flight, which resulted in an in-flight collision with terrain.
- [NTSB SEA04LA117](https://openairdocs.org/ntsb/SEA04LA117.md): Cessna 185F · Bozeman, MT · Accident · No injuries · Limited investigation · Final report · Jun 24, 2004 · N4585F · Substantial damage
  > The failure of the right main gear brake disk attach flange during the landing roll, due to fatigue cracks emanating from numerous corrosion pits present on the surface of the disk, leading to the right brake becoming totally inoperative, and resulting in a…
- [NTSB CHI04LA146](https://openairdocs.org/ntsb/CHI04LA146.md): Cessna A188B · Prosser, NE · Accident · 1 fatal · Limited investigation · Final report · Jun 21, 2004 · N731MP · Substantial damage
  > The pilot's abrupt maneuver to avoid obstructions, and his failure to maintain adequate airspeed resulting in a stall. The low altitude flight operation, and the transmission tower (antenna) were contributing factors.
- [NTSB FTW04LA162](https://openairdocs.org/ntsb/FTW04LA162.md): Cessna 188B · Rush Springs, OK · Accident · Minor injuries · Limited investigation · Final report · Jun 15, 2004 · N21650 · Substantial damage
  > The pilot's failure to maintain clearance with a utility pole and power lines while maneuvering during an aerial application.
- [NTSB LAX04CA222](https://openairdocs.org/ntsb/LAX04CA222.md): Cessna A188A · Minden, NV · Accident · No injuries · Data collection · Final report · Jun 2, 2004 · N9961G · Substantial damage
  > the pilot's failure to maintain directional control of the airplane during landing roll, which resulted in an inadvertent ground loop. A contributing factor was the pilot's lack of experience in the accident airplane.
- [NTSB ANC04LA057](https://openairdocs.org/ntsb/ANC04LA057.md): Cessna 185E · Anchorage, AK · Accident · Minor injuries · Limited investigation · Final report · May 26, 2004 · N70233 · Substantial damage
  > The pilot/owner's failure to ensure that the airplane was in an airworthy condition prior to flight, which resulted in a partial loss of engine power and subsequent in-flight collision with a residence during an emergency landing after takeoff. Factors…
- [NTSB DEN04CA080](https://openairdocs.org/ntsb/DEN04CA080.md): Cessna T188C · Lamar, CO · Accident · No injuries · Data collection · Final report · May 25, 2004 · N2030J · Substantial damage
  > A partial loss of engine power for undetermined reasons and the pilot's failure to maintain adequate airspeed which resulted in a stall. Contributing to the accident was the low altitude.
- [NTSB ANC04LA055](https://openairdocs.org/ntsb/ANC04LA055.md): Cessna 185E · King Salmon, AK · Accident · No injuries · Limited investigation · Final report · May 20, 2004 · N1932U · Substantial damage
  > The pilot's inadequate compensation for wind conditions during takeoff and initial climb, which resulted in a loss of control, and an in-flight collision with water. A factor contributing to the accident was gusty wind conditions.
- [NTSB SEA04FA088](https://openairdocs.org/ntsb/SEA04FA088.md): Cessna A185F · Molalla, OR · Accident · 1 fatal · Field investigation · Final report · May 19, 2004 · N61611 · Destroyed
  > The pilot's inadequate in-flight planning/decision which resulted in VFR flight into IMC, and his failure to maintain control. Factors include mountain obscuration, clouds and convective weather conditions.
- [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 ATL04FA118](https://openairdocs.org/ntsb/ATL04FA118.md): Beech A36 · Morrisville, NC · Accident · 1 fatal · Field investigation · Final report · May 17, 2004 · N4550S · Substantial damage
  > The failure of the engine for undetermined reasons resulting in the aircraft colliding with powerlines and the ground during the subsequent forced landing.
- [NTSB SEA04LA087](https://openairdocs.org/ntsb/SEA04LA087.md): Cessna 185A · Polson, MT · Accident · No injuries · Limited investigation · Final report · May 16, 2004 · N1624H · Substantial damage
  > The pilot's inadequate compensation for the changing wind conditions at the time of the landing. Factors include gusty, variable, crosswinds, and a runway marker near the edge of the runway the pilot was landing on.
- [NTSB CHI04LA120](https://openairdocs.org/ntsb/CHI04LA120.md): Cessna 188B · Pleasant Hill, MO · Accident · Minor injuries · Limited investigation · Final report · May 15, 2004 · N188SA · Substantial damage
  > Fuel exhaustion due to the pilot's improper fuel calculations. Contributing factors to the accident included the inaccurate fuel gage and the trees.

Next page: https://openairdocs.org/ntsb.md?engine=17032&year=2004&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 year(c."eventDate") = 2004
  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&year=2004

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