NTSB investigations, CO
42 cases where the first occurrence was “Loss of engine power(partial) - mech failure/malf”.
Cases per year
| 1982 | 7 |
|---|---|
| 1983 | 3 |
| 1984 | 2 |
| 1985 | 1 |
| 1987 | 1 |
| 1988 | 1 |
| 1990 | 2 |
| 1991 | 4 |
| 1992 | 2 |
| 1993 | 1 |
| 1995 | 2 |
| 1997 | 1 |
| 1998 | 3 |
| 1999 | 2 |
| 2000 | 1 |
| 2001 | 1 |
| 2002 | 2 |
| 2003 | 1 |
| 2004 | 2 |
| 2007 | 3 |
Where
Open the mapLatest cases
Query with SQL
duckdb -csv -c "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\" = 352)
ORDER BY c.\"eventDate\" DESC, c.\"ntsbNumber\" DESC"Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.
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" = 352) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
NTSB DEN08LA014Accident · No injuriesLimited investigationFinal reportCessna 210 · Canon City, COThe failure of the engine throttle cable resulting in a lack of engine power when commanded.NTSB DEN07LA138Accident · Minor injuriesLimited investigationFinal reportAir Tractor AT-301 · Alamosa, COThe failure of the number one cylinder due to fatigue. Contributing to the accident was the pilot's diminished visual lookout due to the oil covered windscreen.NTSB DEN07LA124Accident · No injuriesLimited investigationFinal reportCessna A185F · Englewood, COThis case was revised 10/31/2007. Low compression in number 2 cylinder, which reduced the airplane's climb capability. Contributing factors in this accident were the high density altitude conditions, and the tree.NTSB DEN04LA112Accident · No injuriesLimited investigationFinal reportSwearingen SA-226T · Rifle, COthe pilot's failure to maintain aircraft control during the aborted takeoff resulting in the airplane departing the runway and striking a runway light and two taxiway signs. Factors contributing to the accident were the broken sensor wire to the left engine's…NTSB DEN04CA101Accident · No injuriesData collectionFinal reportWhitlock Rotorway Exec 162F · Meeker, COaircraft control not maintained by the pilot. A contributing factor was the failure of the supercharger.NTSB DEN03LA123Accident · No injuriesLimited investigationFinal reportPiper PA-46-310P · Englewood, COthe pilot's improper flare which resulted in a hard landing. Contributing factors were the out-of-calibration waste gate actuator, a blown tire, and the airport sign.NTSB DEN02GA085Accident · 1 fatalFinal reportAerospatiale SA315B · Estes Park, COthe pilot's abrupt collective input during water application to a forest fire. Contributing factors were encountering a vortex ring state, the inadvertent settling with power, the low altitude, and the mountainous terrain.NTSB DEN02LA064Accident · Serious injuriesLimited investigationFinal reportBeech 35 · Cortez, COan inadvertent stall as the pilot attempted to clear a cliff and ravine and avoid power lines, resulting in a collision with the ground. Contributing factors were a loss of engine power for undetermined reasons, a leaking carburetor and fuel pump, and the…NTSB DEN01LA141Accident · No injuriesLimited investigationFinal reportEnstrom 280FX · Ouray, COthe partial loss of engine power due to the slippage of the wastegate linkage as a result of the plunger on the linkage being undertorqued by an unknown person. A contributing factor was the lack of suitable terrain for the forced landing.NTSB DEN00LA134Accident · Serious injuriesLimited investigationFinal reportCessna 310D · Pagosa Springs, COThe pilot inadvertently stalling the airplane. Factors were the pilot's failure to use the entire available runway, the high density altitude weather condition, and a partial loss of power on one engine due to a burned exhaust valve.NTSB DEN00GA022Accident · No injuriesFinal reportBell 206 L-3 · Rifle, COa forced landing on rough, unsuitable terrain. A contributing factor was the partial loss of engine power, which resulted from improper maintenance by repair station personnel.NTSB DEN99LA131Accident · Serious injuriesLimited investigationFinal reportCessna T210F · Fairplay, COA partial loss of engine power due to a partial failure of the turbocharger.NTSB DEN99LA015Accident · Serious injuriesLimited investigationFinal reportMooney M20C · Englewood, COThe undertorquing of the camshaft gear retaining bolts during engine overhaul by maintenance personnel. A factor was the unsuitable terrain for a forced landing.NTSB FTW98LA367Accident · Minor injuriesLimited investigationFinal reportAerospatiale SA315B · Naturita, COPartial loss of engine power resulting from heat induced deterioration of the gas generator turbine. Factors were a forced landing in hilly unsuitable terrain containing mature trees.NTSB FTW98LA198Accident · No injuriesLimited investigationFinal reportCessna 172N · Parker, COa fractured #1 exhaust valve rocker arm stud, which subsequently resulted in loss of engine power and a forced landing. The lack of suitable terrain in the forced landing area was a related factor.NTSB FTW97LA298Accident · No injuriesLimited investigationFinal reportPiper J3C-65 · Castle Rock, COA partial loss of engine power due to a cylinder exhaust valve jammed in the open position from excessive carbon deposits. A factor was the lack of suitable terrain on which to make a forced landing.NTSB FTW95LA313Accident · No injuriesLimited investigationFinal reportSteinke Early Bird · Akron, COFailure of the pilot to properly flare the airplane for landing during an emergency landing after takeoff. Factors relating to the accidents were: a malfunction of the side rave valve, an excessively rich fuel mixture, and the high density altitude, which…NTSB FTW95LA312Accident · No injuriesLimited investigationFinal reportPiper J3C · Englewood, COA partial power loss due to a stuck number four exhaust valve. A factor was the lack of suitable terrain for a forced landing.NTSB DEN93LA068Accident · No injuriesLimited investigationFinal reportCessna 172N · Livermore, COA partial power loss when the rocker box for one cylinder disengaged. A factor was: unsuitable terrain for a forced landing.NTSB DEN92LA092Accident · Minor injuriesLimited investigationFinal reportCessna 150 · Greeley, COTotal loss of engine power due to a deteriorated carburetor float which resulted in engine flooding. A factor was: unsuitable terrain for a forced landing.NTSB DEN92LA073Accident · Minor injuriesLimited investigationFinal reportCessna 150 · Ft. Collins, COImproper rate of descent and lack of flare while conducting a forced landing. Factors were: partial power loss due to stuck exhaust valves caused by engine overheat from improper leaning.NTSB DEN92LA017Accident · Minor injuriesLimited investigationFinal reportStinson 108-1 · Longmont, COA loss of engine power due to fouled spark plugs. The inadequate maintenance of the engine was a factor in the accident.NTSB DEN91LA112Accident · No injuriesLimited investigationFinal reportLars Avid Flyer · Colorado Spring, COThe pilot's delay in flaring the airplane. Factors were: (1) stuck piston rings and (2) the pilot's failure to use flaps.NTSB DEN91LA066Accident · Minor injuriesLimited investigationFinal reportCessna 421 · Englewood, COPower loss on both engines as a result of exhaust system failure.NTSB DEN91LA053Accident · Serious injuriesLimited investigationFinal reportRockwell 112B · Nederland, CODeteriorated ignition harness and ignition lead arcing. Factors were the high density altitude and lack of suitable terrain for the forced landing.NTSB DEN90LA106Accident · No injuriesLimited investigationFinal reportCessna 337 · Broomfield, COThe pilot's failure to properly execute a precautionary approach following an engine failure.NTSB DEN90LA044Accident · No injuriesLimited investigationFinal reportCessna 182 · Frederick, COA partial engine power loss induced by stuck intake valves. Contributing to the accident was the inadequate maintenance of the airplane and the unsuitable terrain in which the forced landing was performed.NTSB DEN88LA069Accident · No injuriesLimited investigationFinal reportCessna 172N · Englewood, COThe private plt was practicing landings at centennial airport, denver, Colorado. Rnwy 17L, an asphalt rnwy 8,500 feet long and 101 feet wide, was in use. The plt reported that when he attempted to add power on final approach, the throttle cable would not…NTSB DEN87FA110Accident · Serious injuriesField investigationFinal reportPiper PA-23 · Craig, COThe plt and his wife were on a cross country flt to visit relatives in north carolina. Several witnesses observed the aircraft depart Craig-moffet airport with the engine(s) running rough and using almost the entire runway to get airborne. Once airborne the…NTSB DEN85LA206Accident · No injuriesLimited investigationFinal reportPiper PA-22 · Boulder, COAccording to the plt, he was approaching the Boulder municipal arpt, Boulder, Colorado, for a VFR landing when his engine failed to develop sufficient power to sustain flight. A forced landing was made to a farmer's field. The acft sustained substantial…NTSB DEN84FU010Accident · Serious injuriesFinal reportWeedhopper B · Erie, COThe ultralight engine lost power while the plt was in a practice area. He returned to the arpt, and during the attempt to land, the acft crahsed. An instructor said the acft seemed to be flying slower than normal and the plt extended the downwind turn to base…NTSB DEN84LU009Accident · Minor injuriesFinal reportEipper Quicksilver MXL · Erie, COThe ultralight was proceeding in a normal takeoff when the engine lost partial power at about 100 ft AGL. The plt turnedthe vehicle to avoid trees and a river. During the hard forced landing, the vehicle was damaged and the plt hurt his leg. Post accident…NTSB DEN84FA004Accident · No injuriesField investigationFinal reportCessna 421C · Center, COThe acft collided with a dirt bank after a left engine overspeed and loss of directional control during takeoff. The plthad already aborted one takeoff due to overboost and a sticking wastegate. The problem seemed corrected after work and lubrication by a…NTSB DEN83LA135Accident · Minor injuriesLimited investigationFinal reportCessna TU206G · Molina, COThe pilot had leveled off at 17500 ft MSL when the engine made a detonating sound and lost power. Manifold pressure went to about 12 inches. Fuel pressure was normal but the cylinder head temperature fell rapidly. At 9000 ft MSL the engine surged to about 16…NTSB DEN83FTE06Accident · No injuriesFinal reportJohn Tylenda Quickie · Erie, COThe aircraft lost power during takeoff at about 50 to 75 feet above the runway. The pilot stated that the engine RPM began to surge. The pilot said he did not believe enough runway remained for a landing on the airport so he maintained level flt in a shallow…NTSB DEN82DA194Accident · No injuriesFinal reportCessna 182P · 3/4 N.E. Of Nuc, COMinor eng maintenance was performed before takeoff. After takeoff the eng ran rough, backfired & could not produce sufficient power to sustain flight. During the landing in an open field the horizontal stablizer hit a fence. The plt reported that evidently a…NTSB DEN82AA191Accident · 6 fatalFinal reportMitsubishi MU-2B-25 · Hayden, COA maint supervisor & 2 plts noted that the l eng did not respond normally while being started. Aft starting, the plt taxied to rwy 10 for an IFR departure. Since the twy did not extend to the end of the rwy, the plt of another acft waited on the twy, just…NTSB DEN82DA181Accident · Serious injuriesFinal reportErcoupe 415C · Englewood, COWhile on the downwind leg of the traffic pattern, a strong odor of fuel was detected by the aircrew. A few seconds later, there was a considerable loss of power. The engine continued to operate at reduced power, but the sink rate was too great to reach the…NTSB DEN82DA141Accident · Minor injuriesFinal reportAmerican AA5B · Broomfield, COThe pilot was conducting local area pleasure sightseeing flights when the aircraft failed to climb during a normal departure. She landed the aircraft in a plowed field. Investigation revealed the flight was conducted at a density altitude approximately 8,750…NTSB DEN82FA061Accident · Serious injuriesField investigationFinal reportCessna 150 · Parker, COAt about 150 ft AGL & beyond the rwy departure end the eng lost power. The acft impacted an embankment during the attempt to return to the arpt. Eng exam revealed that the #1 cylinder piston compression ring was broken corresonding to grooves on the cylinder.…NTSB DEN82DA044Accident · No injuriesFinal reportPiper PA-31P · Gunnison, COWhile enroute to addison, TX, the pilot noticed a fluctuation in the engine exhaust gas temperature gauge, followed by the tachometer dropping to zero. The pilot also observed smoke emanating from the engine nacelle and proceeded to secure the engine and…NTSB DEN82DA037Accident · No injuriesFinal reportBell 206B III · Alma, COThe pilot reported that before the accident, the flight had been uneventful and all instruments were reading normal except the tot gauge. Reportedly, it was indicating 750 degrees, which was about 100 degrees higher than normal for his power setting of 70%…