# NTSB investigations, CO: Loss of engine 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.

Page 1 of 2 · 97 cases

## Latest cases

- [NTSB DEN07FA157](https://openairdocs.org/ntsb/DEN07FA157.md): Cessna 180 · Englewood, CO · Accident · Serious injuries · Field investigation · Final report · Sep 12, 2007 · N4719B · Substantial damage
  > The pilot's failure to maintain control of the airplane during the force landing attempt resulting in a stall-spin and the subsequent impact with the ground. A factor contributing to the accident was the engine failure for undetermined reasons.
- [NTSB DEN07CA141](https://openairdocs.org/ntsb/DEN07CA141.md): Eaa Biplane P · Parker, CO · Accident · Minor injuries · Data collection · Final report · Aug 21, 2007 · N6193 · Substantial damage
  > The loss of engine power for undetermined reasons. A contributing factor was the pilot's intentional maneuver into a piece of machinery.
- [NTSB DEN07CA035](https://openairdocs.org/ntsb/DEN07CA035.md): Piper PA-28-180 · Falcon, CO · Accident · Minor injuries · Data collection · Final report · Dec 8, 2006 · N6487J · Substantial damage
  > loss of power due to carburetor icing. Contributing factors were weather conditions conducive to carburetor icing, unsuitable terrain available on which to make a forced landing and the tree.
- [NTSB DEN07FA002](https://openairdocs.org/ntsb/DEN07FA002.md): Beech 36 · Centennial, CO · Accident · Minor injuries · Field investigation · Final report · Oct 4, 2006 · N7855R · Substantial damage
  > the loss of engine power for undetermined reasons. Contributing factors were the light pole and parked vehicles impacted during the forced landing.
- [NTSB DEN06CA105](https://openairdocs.org/ntsb/DEN06CA105.md): Schweizer G-164B · Joes, CO · Accident · No injuries · Data collection · Final report · Jul 27, 2006 · N8459K · Substantial damage
  > A loss of engine power due to the failure of the supercharger. Contributing to the accident was a lack of suitable terrain for a forced landing.
- [NTSB DEN06FA091](https://openairdocs.org/ntsb/DEN06FA091.md): Beech A36TC · Montrose, CO · Accident · 2 fatal · Field investigation · Final report · Jul 3, 2006 · N1800Z · Destroyed
  > the pilot's inadequate preflight planning/decision by not having the airplane refueled prior to takeoff, and allowing the engine to be starved of fuel because he failed to switch the fuel selector valve. A contributing factor was the flight instructor's…
- [NTSB DEN06LA059](https://openairdocs.org/ntsb/DEN06LA059.md): Cessna TR182 · Fort Collins, CO · Accident · No injuries · Limited investigation · Final report · Apr 11, 2006 · N729SC · Substantial damage
  > the loss of engine power due to fuel exhaustion. Contributing factors were the pilot's improper preflight planning, the pilot's failure to refuel the airplane, and the lack of suitable terrain for the forced landing.
- [NTSB DEN06LA003](https://openairdocs.org/ntsb/DEN06LA003.md): Aeronca 7AC · Berthoud, CO · Accident · No injuries · Limited investigation · Final report · Oct 9, 2005 · N84580 · Destroyed
  > the pilot's improper in-flight decision making which resulted in loss of engine power due to fuel exhaustion. Contributing factors are the transmission wires and the metal pole.
- [NTSB DEN05LA148](https://openairdocs.org/ntsb/DEN05LA148.md): Brown Hi-MAX 1700R · Fort Morgan, CO · Accident · 1 fatal · Limited investigation · Final report · Sep 17, 2005 · UNREG · Destroyed
  > The pilot's failure to maintain control of the airplane during a forced landing. Contributing factors were the resultant and inadvertent stall, the loss of engine power for undetermined reasons, and the pilot's lack of familiarity with the airplane.
- [NTSB DEN05LA121](https://openairdocs.org/ntsb/DEN05LA121.md): Sheel Vans RV-8 · Fort Collins, CO · Accident · 1 fatal · Limited investigation · Final report · Aug 7, 2005 · N5754S · Substantial damage
  > the pilot inadvertently stalling the airplane and descending into the ground. Contributing factors were the pilot's inadequate preflight planning/preparation and his failure to refuel the airplane, resulting in a loss of engine power due to fuel exhaustion.
- [NTSB DEN05LA117](https://openairdocs.org/ntsb/DEN05LA117.md): Bellanca 14-19-3 · Grand Junction, CO · Accident · 1 fatal · Limited investigation · Final report · Jul 30, 2005 · N8870R · Substantial damage
  > A loss of engine power due to fuel starvation as a result of the improper fuel selector position. Factors contributing to the accident were the inadvertent stall, the ravine, and the steep drop off embankment.
- [NTSB DEN05FA103](https://openairdocs.org/ntsb/DEN05FA103.md): Agusta A119 · Mancos, CO · Accident · 3 fatal · Field investigation · Final report · Jun 30, 2005 · N403CF · Substantial damage
  > a loss of engine power for undetermined reasons and the pilot's inability to get into autorotation prior to impacting the ground. A factor contributing to the accident was the helicopter's low altitude when power was lost.
- [NTSB DEN05FA080](https://openairdocs.org/ntsb/DEN05FA080.md): Schweizer 269C · Pueblo, CO · Accident · Serious injuries · Field investigation · Final report · Jun 15, 2005 · N311CP · Destroyed
  > the flight instructor's failure to maintain control of the helicopter during the attempted autorotation after the loss of engine power for reasons undetermined. Contributing factors include the flight instructor's improper preflight planning, the high density…
- [NTSB DEN05LA041](https://openairdocs.org/ntsb/DEN05LA041.md): Arctic S-1B2 · Steamboat Spngs, CO · Accident · No injuries · Limited investigation · Final report · Dec 18, 2004 · N78AT · Substantial damage
  > the loss of engine power due to carburetor icing. Contributing factors include the conditions conducive for carburetor icing, the lack of suitable terrain for a forced landing, the inadequate preflight planning and decision making and the fence.
- [NTSB DEN05FA038](https://openairdocs.org/ntsb/DEN05FA038.md): Cessna 421 · Englewood, CO · Accident · 3 fatal · Field investigation · Final report · Dec 17, 2004 · N421FR · Destroyed
  > loss of engine power due to fuel starvation, and the instructor's failure to maintain aircraft control. Contributing factors were a partially blocked fuel line resulting in restricted fuel flow, the instructor's failure to perform critical emergency…
- [NTSB DEN05FA034](https://openairdocs.org/ntsb/DEN05FA034.md): Mitsubishi MU-2B-60 · Englewood, CO · Accident · 2 fatal · Field investigation · Final report · Dec 11, 2004 · N538EA · Destroyed
  > the pilot's failure to maintain minimum controllable airspeed during the night visual approach resulting in a loss of control and uncontrolled descent into terrain. A contributing factor was the precautionary shutdown of the left engine for undetermined…
- [NTSB DEN04LA113](https://openairdocs.org/ntsb/DEN04LA113.md): Bellanca 14-19-3A · Estes Park, CO · Accident · No injuries · Limited investigation · Final report · Jul 31, 2004 · N1251R · Substantial damage
  > the loss of engine power for undetermined reasons resulting in a forced landing. Factors contributing to the accident were the unsuitable terrain for landing and the mailbox posts.
- [NTSB DEN04FA109](https://openairdocs.org/ntsb/DEN04FA109.md): Beech 58P · Fort Collins, CO · Accident · 3 fatal · Field investigation · Final report · Jul 24, 2004 · N69CL · Destroyed
  > the loss of engine power for undetermined reasons, and the pilot's failure to maintain adequate airspeed which resulted in a stall/spin. Clouds and the pilot's diverted attention were contributing factors.
- [NTSB DEN04CA095](https://openairdocs.org/ntsb/DEN04CA095.md): Northwing WS2 · Fort Collins, CO · Accident · Serious injuries · Data collection · Final report · Jun 13, 2004 · UNREG · Destroyed
  > A loss of engine power for undetermined reasons. Contributing factors include low altitude, and the lack of suitable terrain for a forced landing.
- [NTSB DEN04FA087](https://openairdocs.org/ntsb/DEN04FA087.md): Raytheon A36 · Gilcrest, CO · Accident · 2 fatal · Field investigation · Final report · Jun 7, 2004 · N6162E · Destroyed
  > the pilot's inadequate in-flight planning/decision by his failure to switch fuel tank selector position which resulted in fuel starvation. Also causal was the pilot's failure to maintain airspeed which resulted in a stall.
- [NTSB DEN04LA071](https://openairdocs.org/ntsb/DEN04LA071.md): Cessna A185E · Englewood, CO · Accident · Serious injuries · Limited investigation · Final report · May 8, 2004 · N185K · Substantial damage
  > the pilot's inadequate preflight planning which failed to verify an adequate fuel supply and his inadequate in-flight planning/decision which resulted in fuel exhaustion. The inadequate indication of his fuel quantity system is a contributing factor.
- [NTSB DEN03LA107](https://openairdocs.org/ntsb/DEN03LA107.md): Beech S35 · Colorado Spring, CO · Accident · No injuries · Limited investigation · Final report · Jun 14, 2003 · N5751K · Substantial damage
  > the pilot's inadequate in-flight planning/decision in which he mismanaged his fuel supply by failing to switch tanks resulting in fuel starvation and the loss of engine power. A contributing factor was the pilot's diverted attention.
- [NTSB DEN03LA073](https://openairdocs.org/ntsb/DEN03LA073.md): Cessna 175A · Colo. Springs, CO · Accident · No injuries · Limited investigation · Final report · Apr 26, 2003 · N6884E · Substantial damage
  > the stuck open exhaust valve on the engine's number 2 cylinder, the pilot's improper preflight planning, and his failure to maintain aircraft control. Factors contributing to the accident were the low altitude flight maneuver performed, the low airspeed, the…
- [NTSB DEN02LA090](https://openairdocs.org/ntsb/DEN02LA090.md): Piper PA-32-260 · Victor, CO · Accident · Serious injuries · Limited investigation · Final report · Aug 11, 2002 · N222SH · Substantial damage
  > the pilot's failure to refuel, resulting in fuel exhaustion and a subsequent loss of engine power. Contributing factors were the pilot's use of inappropriate medication, and the unsuitable terrain on which to make a forced landing.
- [NTSB DEN02LA031](https://openairdocs.org/ntsb/DEN02LA031.md): Doyle Kitfox III · Windsor, CO · Accident · No injuries · Limited investigation · Final report · Mar 10, 2002 · N8SD · Substantial damage
  > loss of engine power due to restricted fuel flow for reasons undetermined. A contributing factor was the unsuitable terrain on which to make a forced landing.
- [NTSB DEN02LA018](https://openairdocs.org/ntsb/DEN02LA018.md): Piper PA-23-250 · Pagosa Springs, CO · Accident · Minor injuries · Limited investigation · Final report · Jan 14, 2002 · N6935Y · Substantial damage
  > the total power failure of the right engine due to the failure of its lubricating system. Contributing factors were the lack of suitable terrain for a forced landing, and the terrain being above the airplane's single engine performance capability.
- [NTSB DEN02LA012](https://openairdocs.org/ntsb/DEN02LA012.md): Cessna T210N · Montrose, CO · Accident · Minor injuries · Limited investigation · Final report · Nov 16, 2001 · N210GB · Destroyed
  > the loss of engine power during initial climb for undetermined reason. A factor was the lack of suitable terrain for a forced landing.
- [NTSB DEN02LA005](https://openairdocs.org/ntsb/DEN02LA005.md): Irwin Thorp T-18 · Longmont, CO · Accident · No injuries · Limited investigation · Final report · Oct 26, 2001 · N2819L · Substantial damage
  > The loss of engine power for undetermined reasons, which resulted in a forced landing. A contributing factor was the lack of suitable terrain for the forced landing
- [NTSB DEN01LA153](https://openairdocs.org/ntsb/DEN01LA153.md): Bradley Rans S-7 · Fruita, CO · Accident · Minor injuries · Limited investigation · Final report · Aug 28, 2001 · N91642 · Substantial damage
  > loss of engine power due to both piston rings failing, and the subsequent inadvertent stall/spin during the attempted forced landing. A contributing factor was the lack of suitable terrain for a forced landing.
- [NTSB DEN01LA139](https://openairdocs.org/ntsb/DEN01LA139.md): Cessna 320 · Falcon, CO · Accident · Serious injuries · Limited investigation · Final report · Aug 7, 2001 · N3338P · Destroyed
  > the pilot's failure to abort the takeoff following a loss of right engine power. A factor was the loss of right engine power for undetermined reasons.
- [NTSB DEN01LA106](https://openairdocs.org/ntsb/DEN01LA106.md): Enstrom F-28C · Elizabeth, CO · Accident · No injuries · Limited investigation · Final report · May 30, 2001 · N83GT · Substantial damage
  > the loss of engine power during approach for an undetermined reason. A contributing factor was the high density altitude.
- [NTSB DEN01FA090](https://openairdocs.org/ntsb/DEN01FA090.md): Piper PA-39 · Fort Collins, CO · Accident · Serious injuries · Field investigation · Final report · Apr 26, 2001 · N8984Y · Substantial damage
  > the loss of right engine power on take-off as a result of the separation of the right engine's alternate air door, which lodged in the fuel servo air inlet. A factor was the lack of suitable terrain for a forced landing.
- [NTSB DEN01LA059](https://openairdocs.org/ntsb/DEN01LA059.md): Meshko Zenair CH-701 · Hudson, CO · Accident · Serious injuries · Limited investigation · Final report · Mar 1, 2001 · N4386W · Substantial damage
  > the loss of engine power as a result of detonation. A contributing factor was the unsuitable terrain on which to make a forced landing.
- [NTSB DEN01LA009](https://openairdocs.org/ntsb/DEN01LA009.md): Grumman American AA-1A · Greeley, CO · Accident · No injuries · Limited investigation · Final report · Oct 29, 2000 · N41RC · Substantial damage
  > Carburetor ice formation due to the pilot's improper use of the carburetor heat control. Factors were the fence and fence post.
- [NTSB DEN00LA091](https://openairdocs.org/ntsb/DEN00LA091.md): Cessna 172XP · Larkspur, CO · Accident · No injuries · Limited investigation · Final report · May 19, 2000 · N758SZ · Substantial damage
  > A forced landing on soft unsuitable terrain. Factors were improper wiring of the electric fuel boost pump, which produce high pressure when either on position was selected causing the engine to flood during the practice engine out approach.
- [NTSB DEN99LA173](https://openairdocs.org/ntsb/DEN99LA173.md): Enstrom 280C · Longmont, CO · Accident · No injuries · Limited investigation · Final report · Sep 30, 1999 · N84DH · Substantial damage
  > An inaccurate touchdown during a full autorotation, which resulted in main rotor flex which cut off the tail boom. Factors were the pilot's lack of total experience in helicopters and high density altitude.
- [NTSB DEN99LA149](https://openairdocs.org/ntsb/DEN99LA149.md): Air Tractor AT-402A · Mead, CO · Accident · No injuries · Limited investigation · Final report · Aug 11, 1999 · N402RE · Substantial damage
  > The pilot's failure to follow proper approach to landing procedures as outlined in the Airplane Flight Manual. A factor was the 6-foot tall corn stalks.
- [NTSB DEN99LA139](https://openairdocs.org/ntsb/DEN99LA139.md): Beech V35B · Elizabeth, CO · Accident · Serious injuries · Limited investigation · Final report · Aug 6, 1999 · N3059W · Substantial damage
  > A forced landing on unsuitable terrain following a total loss of power for non mechanical reasons. Factors were the pilot's failure to follow emergency procedures for restarting the engine, operating the aircraft with known deficiencies, and inaccurate…
- [NTSB DEN99LA126](https://openairdocs.org/ntsb/DEN99LA126.md): Piper PA28-160B · Pueblo, CO · Accident · Minor injuries · Limited investigation · Final report · Jul 23, 1999 · N5595W · Substantial damage
  > Total loss of power during initial climb for undetermined reasons.
- [NTSB FTW98LA296](https://openairdocs.org/ntsb/FTW98LA296.md): Grumman G164A · Stratton, CO · Accident · No injuries · Limited investigation · Final report · Jul 3, 1998 · N36RA · Substantial damage
  > A power loss for reasons undetermined. A factor was the muddy corn field.
- [NTSB FTW98LA066](https://openairdocs.org/ntsb/FTW98LA066.md): Cessna 207 · Fruita, CO · Accident · Minor injuries · Limited investigation · Final report · Dec 10, 1997 · N91002 · Substantial damage
  > The total loss of engine power for undetermined reasons.
- [NTSB FTW98LA061](https://openairdocs.org/ntsb/FTW98LA061.md): Cessna 172N · Watkins, CO · Accident · No injuries · Limited investigation · Final report · Nov 24, 1997 · N738LC · Substantial damage
  > loss of engine power for undertermined reason(s).
- [NTSB FTW97LA338](https://openairdocs.org/ntsb/FTW97LA338.md): Beech V35B · Saguache, CO · Accident · No injuries · Limited investigation · Final report · Sep 4, 1997 · N7397R · Substantial damage
  > **This report was modified on 2/23/2016. Please see the public docket for this accident for additional information.** the loss of engine power during cruise for undetermined reasons and the unsuitable terrain encountered by the pilot during the forced…
- [NTSB FTW97LA210](https://openairdocs.org/ntsb/FTW97LA210.md): Beech 60 · Pueblo, CO · Accident · No injuries · Limited investigation · Final report · Jun 4, 1997 · N7396D · Substantial damage
  > loss of power in the right engine and failure of the right propeller to feather for undetermined reasons. A factor relating to the accident was: the pilot's failure or inability to align the airplane with the runway during the forced landing.
- [NTSB FTW97LA129](https://openairdocs.org/ntsb/FTW97LA129.md): Piper PA-28-140B · Fort Collins, CO · Accident · No injuries · Limited investigation · Final report · Mar 19, 1997 · N98150 · Substantial damage
  > a total loss of power for reasons undetermined. A factor was unsuitable terrain for a forced landing.
- [NTSB FTW97LA020](https://openairdocs.org/ntsb/FTW97LA020.md): Cessna 320A · Longmont, CO · Accident · No injuries · Limited investigation · Final report · Oct 18, 1996 · N430N · Substantial damage
  > The partial failure of the fuel control servo, causing an excessive flow/output of fuel to, and flooding of, the right engine.
- [NTSB FTW96LA392](https://openairdocs.org/ntsb/FTW96LA392.md): Beech H35 · Boulder, CO · Accident · Minor injuries · Limited investigation · Final report · Sep 19, 1996 · N5428D · Substantial damage
  > a loss of engine power due to a plugged fuel tank vent which resulted in fuel starvation. A factor was the lack of suitable terrain for the forced landing.
- [NTSB FTW96LA293](https://openairdocs.org/ntsb/FTW96LA293.md): Beech A23-19 · Garfield, CO · Accident · No injuries · Limited investigation · Final report · Jul 7, 1996 · N5675S · Substantial damage
  > a reported power loss for reasons undetermined.
- [NTSB FTW96LA291](https://openairdocs.org/ntsb/FTW96LA291.md): Enstrom 280C · Castle Rock, CO · Accident · No injuries · Limited investigation · Final report · Jul 3, 1996 · N51763 · Substantial damage
  > Total failure of the magneto. A factor was the pilot operating the helicopter with a known deficiency.
- [NTSB FTW96LA281](https://openairdocs.org/ntsb/FTW96LA281.md): Cessna 172H · Pierce, CO · Accident · No injuries · Limited investigation · Final report · Jun 30, 1996 · N1686F · Substantial damage
  > a loss of engine power for undetermined reasons. A factor was the unsuitable terrain.

Next page: https://openairdocs.org/ntsb.md?state=CO&occurrence=350&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" = 'CO' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT o.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o."occurrenceNumber" = 1 AND o."occurrenceCode" = 350)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?occurrence=350&state=CO

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