NTSB investigations, 1989
67 cases where the first occurrence was “Loss of engine power(partial) - mech failure/malf”.
Cases per year
| 1982 | 91 |
|---|---|
| 1983 | 77 |
| 1984 | 88 |
| 1985 | 82 |
| 1986 | 76 |
| 1987 | 58 |
| 1988 | 76 |
| 1989 | 67 |
| 1990 | 74 |
| 1991 | 62 |
| 1992 | 48 |
| 1993 | 53 |
| 1994 | 54 |
| 1995 | 60 |
| 1996 | 42 |
| 1997 | 43 |
| 1998 | 50 |
| 1999 | 35 |
| 2000 | 41 |
| 2001 | 28 |
| 2002 | 36 |
| 2003 | 24 |
| 2004 | 45 |
| 2005 | 33 |
| 2006 | 28 |
| 2007 | 37 |
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 year(c.\"eventDate\") = 1989
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 year(c."eventDate") = 1989 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 LAX90LA057Accident · Minor injuriesLimited investigationFinal reportBeech 33 · Gorman, CAThe malfunctioning propeller governor, and the pilot's misjudgement of altitude and distance of the approach path during an emergency landing. Factors contributing to the accident were: the power lines across the approach path to the runway and the…NTSB ATL90FA040Accident · 1 fatalField investigationFinal reportCessna 182 · Cincinnati, OHFailure of the Cessna pilot to remain clear of the helicopter after experiencing a partial power loss.NTSB LAX90LA050Accident · No injuriesLimited investigationFinal reportHughes 369HS · Waimea, HIThe improper installation of the pc tube by company maintenance personnel, which resulted in fatigue failure of the tube due to induced bending stresses.NTSB NYC90LA035Accident · No injuriesLimited investigationFinal reportBeech B-23 · Tinton Falls, NJPrecautionary landing in unsuitable terrain following a partial power loss due to a failed exhaust valve.NTSB MIA90LA030Accident · No injuriesLimited investigationFinal reportCessna 177RG · Mims, FLA worn throttle control assembly that had failed.NTSB LAX90DVG01Accident · No injuriesFinal reportSchweizer G-164B · Grimes, CAFailure of the counter weight bracket to the propeller assembly.NTSB ANC90FA010Accident · No injuriesField investigationFinal reportCessna A185E · Anchorage, AKThe throttle control linkage became disconnected on the first flight after an annual inspection due to improper maintenance. Darkness and high vegetation were contributing factors.NTSB BFO90FA008Accident · No injuriesField investigationFinal reportPiper PA-28-181 · Laurel, MDLost of engine power caused by material failure of the number three cylinder exhaust valve. The failure was attributed to excessive temperature.NTSB FTW90FA013Accident · Serious injuriesField investigationFinal reportCessna 414 · San Antonio, TXThe failure of the right propeller unfeathering accumulator hose due to improper installation and chaffing, and the pilot's operation of the airplane beyond its engine out performance capability. Factors were inadequate company maintenance, and the pilot's…NTSB NYC90LA008Accident · No injuriesLimited investigationFinal reportCessna 150 · Madison, CTA loss of engine power, due to a stuck exhaust valve in the number 4 cylinder. Factors related to the accident were: the pilot's excessive airspeed on final approach, and his failure to attain the proper touchdown point during the landing.NTSB ATL90LA005Accident · Minor injuriesLimited investigationFinal reportCessna 120 · Maysville, KYThe improper inspection of the airplanes engine by the pilot/owner resulting in five rocker box cover screws being missing and subsequent loss of engine oil due to the cover vibrating and causing a hole to be worn in it. Subsequent loss of engine power due to…NTSB CHI89DEM10Accident · 1 fatalFinal reportFletcher SONERAI-2L · Interlochen, MILoose cylinder due to improper maintenance by the pilot/owner, which resulted in overheating and failure of the aluminum cylinder head. The presence of trees was considered to be a factor.NTSB CHI89LA191Accident · No injuriesLimited investigationFinal reportBell 206B-3 · Chicago, ILA hard landing caused by the pilot not being able to judge his altitude above or his closure rate to terrain because of high vegetation in the area available for a forced landing. An engine faulure caused by material failure of the compressor section is a…NTSB FTW89LA165Accident · No injuriesLimited investigationFinal reportCessna 172N · Waxahachie, TXFailure of the #3 exhaust valve due to exposure to overtemperature operating conditions.NTSB ATL89FA214Accident · 3 fatalField investigationFinal reportPiper PA-28R-180 · Gordon, ALThe improper installation of the fuel gascolator bowl by maintenance personnel, which resulted in fuel leakage and a loss of fuel pressure to the engine.NTSB DEN89LA214Accident · Serious injuriesLimited investigationFinal reportPiper PA-18A-150 · Winston, NMDeteriorated carburetor float. Factors related to the accident were: high density altitude and the terrain conditions in the emergency landing area.NTSB LAX89LA297Accident · No injuriesLimited investigationFinal reportBell 206B · Murrieta, CAA partial loss of engine power due to contaminates in the fuel control unit. The origin of the contaminates was not determined. Contributing factor(s) was: the helicopter was not equipped with floats.NTSB FTW89LA161Accident · No injuriesLimited investigationFinal reportCessna 152 · Carmin, TXLoss of power for an unknown reason. Factors related to the accident were the ditch & fence.NTSB LAX89FA295Accident · Serious injuriesField investigationFinal reportNorth American P51D · Mar Vista, CAThe pilot's poor in-flight planning in attempting to immediately return to the airport and not following established procedures after the loss of power after takeoff. The failure of an intake valve was a factor in the accident.NTSB LAX89LA298Accident · No injuriesLimited investigationFinal reportStinson 108 · Cool, CAFailure of the #2 piston. Failure of the mechanic to properly overhaul the engine was a related factor.NTSB LAX89LA282Accident · Serious injuriesLimited investigationFinal reportBeech B35 · San Diego, CALoss of engine power for undetermined reasons. Factors that related to the accident were: unavaliable altitude, remedial action not possible, unsuitable terrain, high vegetation, and the trees.NTSB NYC89LA195Accident · No injuriesLimited investigationFinal reportEnstrom 280C · Milbridge, MEFailure of the number 3 intake valve outer spring. The water (river) in the emergency landing area was a related factor.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 LAX89LA267Accident · No injuriesLimited investigationFinal reportGrumman American AA-5B · Terminal Island, CAThe fatigue failure of an exhaust valve due to excessive wear of the respective valve guide. Factors related to the accident were: the fence & cars in the emergency landing area.NTSB FTW89LA144Accident · No injuriesLimited investigationFinal reportCessna 172G · Mckinney, TXTotal failure of the engine assembly/rocker arm/tappet shaft.NTSB CHI89DEX06Accident · No injuriesFinal reportGrumman G-164A · Sullivan, INA failure of the supercharger oil seal which resulted in a partial loss of engine power during takeoff and the uncontrolled touchdown during the forced landing. Factors related to the accident were: partial failure of the supercharger and spark plub fowling.NTSB ATL89FA188Accident · 6 fatalField investigationFinal reportBeech 70 · Albany, GAThe fatigue failure of the supercharger intermediate drive gear shaft (gear tooth), which resulted in a partial loss of power, and the pilot's initiation of lift-off before reaching VMC airspeed. Factors related to the accident were: the worn intermediate…NTSB CHI89LA146Accident · No injuriesLimited investigationFinal reportPiper PA-32R-300 · Nappanee, INThe pilot-in-command's improper preflight calculation of weight and balance and the aircraft's inadequate climb capability due to low compression.NTSB FTW89DRA08Accident · Minor injuriesFinal reportGrumman-Schweizer G-164B · Anahuac, TXFailure of the supercharger bearing. The dirt bank was a contributing factor.NTSB ATL89LA178Accident · No injuriesLimited investigationFinal reportPiper PA-32RT-300T · Columbus, OHThe improper installation of the propeller governor idler-gear shaft retaining set-screw, which led to an engine oil leak and resulted in a loss of engine power; and the reduction of the pilot's ability to see outside the airplane due to oil on the windshield.NTSB MIA89LA188Accident · Minor injuriesLimited investigationFinal reportCessna 182 · Kissimmee, FLThe failure of the carburetor throttle cable because of an inadequate annual inspection conducted 4.6 flight hours and one month before the accident.NTSB LAX89LA236Accident · No injuriesLimited investigationFinal reportCessna 150M · Venice, CAThe improper installation and inspection of the carburetor throttle linkage arm.NTSB LAX89DVG07Accident · No injuriesFinal reportSchweizer G-164B · Willows, CAFailure of the connecting rod on #1 cylinder of the aircraft powerplant.NTSB MKC89LA142Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G-164A · Waldenburg, ARThe total failure of the engine supercharger which resulted in a loss of engine power.NTSB FTW89DRD09Accident · No injuriesFinal reportSchweizer G-164A · Bunkie, LAThe loss of the number five cylinder in flight, resulting in a loss of engine RPM. The pilot misjudged the landing flare height due to obscured vision from fire and smoke and the airplane stalled and impacted the ground nose first.NTSB FTW89LA114Accident · No injuriesLimited investigationFinal reportCessna 150J · Minden, LAThe loss of engine power due to improper maintenance performed during an annual inspection 1.6 flying hours prior to the accident which resulted in the mixture control becoming disconnected.NTSB LAX89LA221Accident · No injuriesLimited investigationFinal reportCessna 172E · Grass Valley, CAFailure to perform maintenance inspections prescribed by the magneto, engine and aircraft manufacturers. The high density altitude and terrain conditions were contributing factors.NTSB CHI89DEK01Accident · Serious injuriesFinal reportPiper PA-28 · Albany, OHSeizure of the #4 exhaust valve and bending of its respective push rod, which resulted in a significant loss of engine power. Contributing factors were: lack of a suitable emergency landing area, trees, and the fence.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 ATL89LA162Accident · Minor injuriesLimited investigationFinal reportCessna 150M · Knoxville, TNThe pilot's failure to recognize that the engine was not developing full power and the delay in performing remedial action until it was too late to stop the airplane on the runway.NTSB ATL89FA163Accident · 1 fatalField investigationFinal reportCessna 172F · Vernon, ALImproper maintenance of the spark plugs by the pilot/mechanic which resulted in a partial loss of engine power, and the pilot's failure to clear trees during an emergency landing in an open field resulting in an inadvertent stall.NTSB CHI89FA109Accident · No injuriesField investigationFinal reportPiper PA-28R-200 · Saint Charles, ILThe failure of the mechanic to properly inspect the alternate air door during annual inspection. This failure led to air starvation, loss of power, and a forced landing by the pilot onto rough terrain.NTSB ATL89LA159Accident · No injuriesLimited investigationFinal reportCessna 152 · Jackson, TNThe separation of the mixture cable from the carburetor. Contributing factor(s) was: inadequate maintenance and inspection of the airplane and the soft terrain encountered during the forced landing.NTSB FTW89FA107Accident · Serious injuriesField investigationFinal reportPitts S-1S · Henryetta, OKAn engine power loss due to the separation and departure of an exhaust stack. The stack failed due to poor weld. Factor(s) was: the terrain conditions of the selected forced landing site.NTSB SEA89LA093Accident · No injuriesLimited investigationFinal reportPiper PA-22-150 · Black Diamond, WAPower loss due to magneto failure. Contributing to the accident were lack of suitable terrain for forced landing and the presence of obstacles.NTSB LAX89LA197Accident · Minor injuriesLimited investigationFinal reportAerospatiale AS350D · Waialae Falls, HIImproper maintenance/adjustment of the engine fuel control unit by company maintenance personnel, which resulted in a slight loss of engine power, and failure of the pilot to maintain rotor RPM, while turning and taking off from a hover with a relatively…NTSB DEN89LA122Accident · No injuriesLimited investigationFinal reportCessna 175 · Sheridan, WYBinding (stuck) #4 exhaust valve. High vegetation (hay) and a hidden obstruction (ditch) were contributing factors.NTSB FTW89LA097Accident · No injuriesLimited investigationFinal reportPiper PA-24-250 · Decatur, TXInadequate inspection of the exhaust system by the maintenance personnel during the latest annual inspection.NTSB ATL89LA146Accident · 1 fatalLimited investigationFinal reportErcoupe 415-C · Troy, NCAn undetermined powerplant problem, which resulted in a loss of engine power, and the pilot/mechanic's failure to assure the aircraft was properly inspected before flight. Factors related to the accident were: the pilot's delay in making a precautionary…NTSB MIA89LA136Accident · No injuriesLimited investigationFinal reportCessna 152 · Miami, FLFailure of a rocker shaft boss on the number three cylinder. A related factor was the rough terrain in the emergency landing area.