NTSB investigations, AZ
46 cases where the first occurrence was “Loss of engine power(partial) - mech failure/malf”.
Cases per year
| 1982 | 2 |
|---|---|
| 1983 | 1 |
| 1984 | 2 |
| 1987 | 3 |
| 1988 | 2 |
| 1989 | 2 |
| 1990 | 3 |
| 1991 | 4 |
| 1992 | 2 |
| 1993 | 1 |
| 1994 | 2 |
| 1995 | 4 |
| 1996 | 2 |
| 1997 | 2 |
| 1998 | 1 |
| 2000 | 1 |
| 2001 | 2 |
| 2002 | 2 |
| 2003 | 1 |
| 2004 | 2 |
| 2005 | 1 |
| 2006 | 1 |
| 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\" = 'AZ' 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" = 'AZ' 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 LAX08LA009Accident · Minor injuriesLimited investigationFinal reportCessna 172L · Prescott, AZThe failure of maintenance personnel to detect fatigue cracks in the number 3 exhaust rocker arm, which lead to a partial loss of engine power.NTSB SEA08LA001Accident · No injuriesLimited investigationFinal reportCessna 172N · Green Valley, AZThe loss of engine power due to the separation of the number three cylinder exhaust rocker arm.NTSB LAX07LA153Accident · No injuriesLimited investigationFinal reportPiper PA-28-140 · Tucson, AZA loss of engine power while maneuvering due to a broken exhaust valve. Contributing to the accident was the rough terrain.NTSB LAX06LA164Accident · No injuriesLimited investigationFinal reportBoeing Stearman E75 · Show Low, AZthe collapse of the air intake duct resulted in a loss of engine power. A factor was the uneven terrain in the landing area.NTSB LAX05LA214Accident · No injuriesLimited investigationFinal reportPiper PA-28R-200 · Happy Jack, AZThe fracture/separation of an engine intake valve during cruise flight, which resulted in a partial loss of engine power and a forced landing.NTSB LAX05LA025Accident · No injuriesLimited investigationFinal reportEurocopter AS350B3 · Sierra Vista, AZAn inconsistency between the engines' two N2 sensor signals caused the fuel control to enter a fixed mode, which limited the power available. Contributing to the accident was the lack of altitude and airspeed available to give the pilot time to select a…NTSB LAX05LA002Accident · No injuriesLimited investigationFinal reportClassic Waco YMF · Sedona, AZa loss of engine power due to the fatigue fracture of the number 7 cylinder exhaust rocker arm as a result of a grinding operation during manufacture.NTSB LAX03LA260Accident · No injuriesLimited investigationFinal reportErcoupe 415-C · Saint Johns, AZThe failure of the exhaust valve on the number two engine cylinder, which resulted in a partial loss of engine power during the final approach to land, and an on ground collision with a ditch during the subsequent off-airport landing roll.NTSB LAX03LA050Accident · No injuriesLimited investigationFinal reportAnderson Rotorway Exec 162F · Phoenix, AZThe separation of the exhaust valve stem in the number 1 cylinder, which resulted in a partial loss of engine power during the landing flare and a hard landing.NTSB LAX02LA096Accident · No injuriesLimited investigationFinal reportRotorway Rotorway Exec 90 · Phoenix, AZThe student's inadvertent over control of the throttle mechanism, which resulted in the bending of the throttle mechanical stop and binding the linkage in the idle position. Also causal was the CFI's inadequate supervision. A factor in the accident was the…NTSB LAX01LA140Accident · No injuriesLimited investigationFinal reportCessna 210B · Camp Verde, AZThe throttle linkage disconnection resulting in the engine producing idle power. A factor was the lack of suitable terrain for a forced landing.NTSB LAX01IA118Incident · No injuriesIncident investigationFinal reportMcDonnell Douglas MD-88 · Tucson, AZthe failure of 4th stage turbine blades during takeoff roll, which resulted in a dynamic imbalance in the engine.NTSB LAX00FA347Accident · Minor injuriesField investigationFinal reportCessna 207A · Valle, AZImproper maintenance and adjustment of the engine magnetos resulting in a loss of optimum performance during a critical takeoff that required peak engine performance.NTSB LAX98LA139Accident · No injuriesLimited investigationFinal reportBell 206B · Grand Canyon, AZThe malfunction and erratic speed control of the engine's governor, and the flight instructor's delayed remedial action.NTSB LAX97LA261Accident · No injuriesLimited investigationFinal reportClassic Waco YMF · Sedona, AZA partial loss of engine power due to a loose rocker arm adjustment nut on the number 6 cylinder. The loose adjustment nut was due to inadequate maintenance adjustment performed by the engine manufacturer.NTSB LAX97LA163Accident · No injuriesLimited investigationFinal reportPiper PA-28R-201T · Tucson, AZThe partial blockage of the No. 2 cylinder injection line/nozzle by a transient contaminant, which induced an excessively lean mixture in that cylinder, and the subsequent overheating of the cylinder and intake valve. The engine power loss was due to the open…NTSB LAX96LA210Accident · No injuriesLimited investigationFinal reportRotorway Exec 9 · Chandler, AZa loss of engine power due to a failed piston and piston ring in a critical phase of flight.NTSB LAX96LA167Accident · No injuriesLimited investigationFinal reportMaule M-5-235C · Lake Havasu Cty, AZthe pilot-owner's inadequate engine maintenance which resulted in a progressive ignition failure. Factors which contributed to the accident were the dark nighttime light condition and the presence of hidden obstructions in the forced landing area.NTSB LAX96LA023Accident · No injuriesLimited investigationFinal reportGreat Lakes 2T-1A-2 · Chandler, AZthe improper installation of an intake manifold tube assembly during engine overhaul which permitted leakage into the induction system resulting in detonation and piston failure in the associated cylinder.NTSB LAX95LA290Accident · Serious injuriesLimited investigationFinal reportPiper PA-30-B · Wickenberg, AZthe pilot's improper emergency procedures. The pilot's diverted attention, and the magnetos clearance and timing were factors in this accident.NTSB LAX95LA253Accident · No injuriesLimited investigationFinal reportPiper PA-25-235 · Maricopa, AZan undetermined internal failure of the carburetor.NTSB LAX95LA149Accident · No injuriesLimited investigationFinal reportBulsky Skybolt · Goodyear, AZfuel starvation due to the partial failure of the fuel pump caused by the broken crankshaft idler gear attachment screw lockplate. The unsuitable terrain and trees were factors in this accident.NTSB LAX95LA064Accident · No injuriesLimited investigationFinal reportRockwell S2R Thrush Cmdr · Yuma, AZa forced landing due to an engine failure of the no.1 cylinder.NTSB LAX94LA225Accident · Serious injuriesLimited investigationFinal reportStaudacher 300S · Chandler, AZThe operation of the engine at an RPM setting that exceeded the original design specifications and resulted in the failure of the no. 5 connecting rod bearing.NTSB LAX93LA150Accident · Minor injuriesLimited investigationFinal reportCessna 172 · Gila Bend, AZThe failure of maintenance personnel to perform mandatory service bulletins during the annual inspection 20 flying hours prior to the accident which resulted in the carburetor's primary venturi becoming loose.NTSB LAX93LA040Accident · Serious injuriesLimited investigationFinal reportCessna 172G · Williams, AZThe partial loss of engine power due to a stuck exhaust valve on the number two cylinder and the pilot's inability to climb the aircraft above the trees surrounding the airport. A factor in the accident was the effects of the high density altitude on the…NTSB LAX92FA092Accident · 2 fatalField investigationFinal reportCessna T210L · Temple Bar, AZFatigue failure of the turbocharger's turbine shaft due to inadequate maintenance, and the pilot's improper in-flight planning/decision after experiencing a turbocharger failure. A factor related to the accident was: the lack of information in the pilot…NTSB LAX92LA045Accident · No injuriesLimited investigationFinal reportCessna 152 · Maricopa, AZThe cfi's inadequate supervision and his delayed remedial action. A factor was carburetor icing conditions.NTSB LAX92LA020Accident · No injuriesLimited investigationFinal reportPiper PA28-161 · Chandler, AZAn engine malfunction produced by exhaust valves stuck in the open position. Contributing to the accident was an unsuitable landing area and a sign adjacent to the landing area.NTSB LAX91LA413Accident · Minor injuriesLimited investigationFinal reportGrumman G164A-450 · Queen Creek, AZFailure of the engine cylinder, producing a loss of power. Contributing to the accident was the location of an irrigation ditch next to the landing area and a dark night light condition.NTSB LAX91LA129Accident · Serious injuriesLimited investigationFinal reportCessna 421B · Tucson, AZThe fatigue failure of the right engine turbo exhaust clamp, and, the failure of the flying pilot to complete the single engine emergency procedures in a timely manner. A factor in the accident was the failure of the pilot in command to adequately supervise…NTSB LAX91LA033Accident · Minor injuriesLimited investigationFinal reportMooney M20E · Tuba City, AZFailure of the piston rings which reduced the available engine power, and the pilot's continued operation of his airplane with a known engine deficiency during the relatively high density altitude conditions.NTSB LAX91DUJ03Accident · No injuriesFinal reportAir Tractor AT-302 · Somerton, AZThe failure of the number 3 exhaust valve which led to an engine failure and subsequent crash landing.NTSB LAX90LA175Accident · No injuriesLimited investigationFinal reportPiper PA23-160 · Flagstaff, AZThe failure of the pilot to maintain directional control and to feather the propeller. A factor was erratic power from the left engine due to the jamming of the fuel selector valve in an intermediate position.NTSB LAX89LA273Accident · Minor injuriesLimited investigationFinal reportCessna 172N · Seligman, AZA loss of engine power due to a failure of the number 3 cylinder exhaust valve rocker arm pivot stud, which was in turn caused by a stuck exhaust valve.NTSB LAX89LA217Accident · Minor injuriesLimited investigationFinal reportCessna 421 · Picacho, AZFailure of the number three exhaust valve on the left engine. A major factor was the high density altitude where the airplane would not operate on single engine.NTSB LAX88DUJ06Accident · No injuriesFinal reportGrumman G-164B · Chandler, AZDuring an aerial application flight, the engine experienced a loss of power. A forced landing was made in an open field and during the landing roll the airplane nosed over. Inspection of the engine revealed that the number five cylinder dome separated from…NTSB LAX88LA266Accident · No injuriesLimited investigationFinal reportBellanca 17-30A · Springerville, AZShortly after takeoff, the engine experienced a loss of power. The pilot made a forced landing where during the landing roll, the airplane collided with the terrain. During the engine inspection, it was found that the left magneto fired only one sparkplug.…NTSB LAX87LA312Accident · Minor injuriesLimited investigationFinal reportGulfstream American AA-5A · Tucson, AZThe plt reported that just after takeoff, the engine lost partial power & he was unable to land back at the airport. During an emergency landing, the aircraft collided with a utility line & pole. An exam of the engine revealed that a rocker arm on the #4…NTSB LAX87FA151Accident · Serious injuriesField investigationFinal reportCessna T210K · Prescott, AZAfter overloading the aircraft with 5 pax and baggage, the pilot departed on a personal cross country flight to phoenix, AZ. He climbed the acft to and maintained an altitude of 14,500 feet MSL until reaching salt lake city, UT. The aircraft was then…NTSB LAX87LA113Accident · No injuriesLimited investigationFinal reportCessna 152 · Tucson, AZDuring a local dual instructional flight, the pilot reported that the aircraft developed a vibration and a substantial power loss. The acft was forced to land off the arpt in the high vegetation. Examination of the aircraft revealed that the #3 cylinder was…NTSB LAX84LA291Accident · No injuriesLimited investigationFinal reportTaylorcraft F21 · Payson, AZThe acft was landed 200 ft short of the rwy in bushes after the engine hesitated during the plts application of throttle in an attempt to reach the rwy. An FAA inspector found the magneto timing set to 23 plus degrees rather than the prescribed 20 degrees.NTSB LAX84LA162Accident · No injuriesLimited investigationFinal reportBeech K35 · Flagstaff, AZCruising at 10,500 ft the number 5 cylinder separated from the engine ass'y causing the loss of power. During the forced ldg roll the acft collided with a snow covered log collapsing the nose gear. The engine was overhauled in 1980. 1,239 hrs of operation had…NTSB LAX83LA177Accident · Serious injuriesLimited investigationFinal reportCessna T188C · Soloman, AZThe acft experienced a partial power loss and made an emergency landing in the field it was spraying. The acft had only made one spraying pass since being serviced with a full load of fuel and 140 gallons of chemical before the power loss occurred. As the…NTSB LAX82FA196Accident · 8 fatalField investigationFinal reportCessna 320D · Chandler, AZShortly after the aircraft took off from stellar airpark, several witnesses saw it flying northbound with smoke trailing from the left engine. One witness, a student pilot, stated that the gear was down and the plane was lower than normal, about 500 ft AGL.…NTSB LAX82DA121Accident · No injuriesFinal reportCessna 150G · Tucson, AZDuring flight, the student pilot heard a loud noise from the engine and landed at a nearby airport. He reported that during the landing, a gust of wind was encountered, the left wing came up and the nose veered left. At that time, the right spindle attachment…