NTSB investigations: Lycoming VO-540 series, CA
95 cases on aircraft whose registry engine model is Lycoming VO-540 series. Aircraft are matched to the registry by N-number and event date, checked against the reported serial number, make and model, so older matches can be wrong.
Cases per year
| 1965 | 3 |
|---|---|
| 1966 | 2 |
| 1968 | 3 |
| 1969 | 2 |
| 1970 | 1 |
| 1971 | 2 |
| 1972 | 2 |
| 1973 | 1 |
| 1975 | 2 |
| 1977 | 4 |
| 1978 | 5 |
| 1979 | 4 |
| 1980 | 1 |
| 1981 | 6 |
| 1982 | 2 |
| 1983 | 6 |
| 1984 | 2 |
| 1985 | 1 |
| 1986 | 6 |
| 1987 | 2 |
| 1988 | 2 |
| 1989 | 2 |
| 1990 | 1 |
| 1991 | 4 |
| 1992 | 3 |
| 1993 | 2 |
| 1995 | 3 |
| 1996 | 1 |
| 1998 | 2 |
| 1999 | 1 |
| 2000 | 3 |
| 2001 | 3 |
| 2003 | 1 |
| 2004 | 1 |
| 2005 | 2 |
| 2010 | 3 |
| 2011 | 1 |
| 2012 | 1 |
| 2013 | 1 |
| 2015 | 1 |
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\" = 'CA' AND c.\"eventCountry\" = 'USA'
AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41534', '41582'))
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" = 'CA' AND c."eventCountry" = 'USA'
AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41534', '41582'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESCRun 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 WPR15LA138Accident · No injuriesLimited investigationFinal reportHiller UH 12E · Firebaugh, CAA loss of engine power for reasons that could not be determined because postaccident examination of the engine did not reveal any anomalies that would have precluded normal operation.NTSB WPR14LA062Accident · No injuriesLimited investigationFinal reportHiller UH 12E · Chowchilla, CAThe failure of the torsional drive coupling, which resulted in a loss of drive to the main rotor system during low-altitude flight.NTSB WPR12LA115Accident · Serious injuriesLimited investigationFinal reportTexas Helicopter OH-13E/M74 · Farmington, CAThe in-flight separation of the wood portion of one main rotor blade while maneuvering at low level, the reason for which could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation.NTSB WPR11CA146Accident · No injuriesData collectionFinal reportHiller UH-12E · Colusa, CAThe pilot's failure to maintain an adequate airspeed and an inadvertent encounter with settling with power while flying downwind.NTSB WPR10LA127Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Los Banos, CAA partial loss of engine power due to a failure of the throttle interconnect hardware, which resulted in a hard landing.NTSB WPR10LA117Accident · Minor injuriesLimited investigationFinal reportBell 47G-4A · Shafter, CAThe loss of a main rotor blade counterweight due to corrosion. Contributing to the accident was the failure of the operator to perform the initial and recurrent inspections required by a Service Bulletin to detect the corrosion in the counterweight.NTSB WPR10CA094Accident · Minor injuriesData collectionFinal reportHiller UH-12E · Tipton, CAThe pilot's failure to maintain clearance from terrain.NTSB LAX05CA313Accident · No injuriesData collectionFinal reportHiller UH 12-E · Five Points, CAThe pilot's failure to refuel the helicopter, which resulted in fuel exhaustion.NTSB LAX05LA187Accident · Serious injuriesLimited investigationFinal reportBell 47G-4A · Bakersfield, CAthe pilot's inadequate visual lookout and failure to maintain clearance from the power lines.NTSB LAX04LA176Accident · Serious injuriesLimited investigationFinal reportBell 47G-4A · Bakersfield, CAa loss of tail rotor drive due to a disconnection of the drive shaft's splined coupling at the tail rotor gear box. The splined coupling to tail rotor gear box disconnection occurred as a result of tail boom flexing due to the combined effects of an…NTSB LAX03LA197Accident · 1 fatalLimited investigationFinal reportBell 47-G4 · Porterville, CAloss of control for undetermined reasons.NTSB LAX01LA276Accident · Minor injuriesLimited investigationFinal reportBell 47G-4A · Strathmore, CAThe pilot's inadequate visual lookout while maneuvering during an aerial application flight.NTSB LAX01LA245Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Blythe, CAThe selection by the pilot of an unsuitable precautionary landing site on soft, uneven terrain, which resulted in a rollover.NTSB LAX01LA196Accident · No injuriesLimited investigationFinal reportBell 47G-4A · Buttonwillow, CAThe pilot's inadequate in-flight planning that resulted in settling with power during an aerial application turn-to-reverse direction and collision with the ground. Factors were high density altitude and a wind shift.NTSB LAX00LA116Accident · No injuriesLimited investigationFinal reportBell 47G-4A · Wasco, CAThe pilot's failure to use carburetor heat, which resulted in a loss of engine power. Factors included the ambient carburetor icing conditions and the lack of suitable terrain for the forced landing.NTSB LAX00LA107Accident · Minor injuriesLimited investigationFinal reportHiller H-12E · Byron, CAThe pilot's inadequate visual lookout while maneuvering in proximity to wires. A contributing factor was the sun glare, which reduced the wire's conspicuity.NTSB LAX00LA077Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Five Points, CAThe pilot's inadequate clearance while maneuvering beneath a telephone line.NTSB LAX00LA027Accident · Serious injuriesLimited investigationFinal reportHiller UH-12E · Castroville, CAThe pilot's inadequate visual lookout and diverted attention.NTSB LAX98LA197Accident · No injuriesLimited investigationFinal reportBell 47G-4A · Shafter, CAThe aircraft's encounter with settling with power, which resulted from the pilot's decision to perform a steep downwind approach.NTSB LAX98LA089Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Chico, CAFuel exhaustion due to the pilot's failure to ensure that an adequate fuel supply was onboard. A contributing factor was related to the fuel quantity gage's erroneous indication of fuel.NTSB LAX96LA279Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Healdsburg, CAThe failure of the pilot to confirm a loss of power before entering autorotation after reading an erroneous instrument indication on the helicopter's dual tachometer. Factors in the accident were the erratic instrument, and maintenance personnel who failed to…NTSB LAX95LA132Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Five Points, CAfuel exhaustion due to the pilot's inattention to the fuel supply.NTSB LAX95LA109Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Arvin, CAThe seizure of the transmission due to lack of lubrication from a plugged oil supply line.NTSB LAX95LA096Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Chowchilla, CAthe in-flight failure and separation of the main rotor hub due to a fatigue crack.NTSB LAX94LA043Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Salinas, CAThe pilot's improper handling of the helicopter which resulted in overloading of the rotor system in a maneuvering turn during aerial application of chemical, and subsequent failure of the main rotor paddle assembly.NTSB LAX93LA120Accident · No injuriesLimited investigationFinal reportBell 47G · Bakersfield, CAThe clutch slippage and failure of the pilot to jettison the load.NTSB LAX92LA349Accident · Minor injuriesLimited investigationFinal reportHiller UH12-E, Saloy Conver · Arvin, CAThe failure of the tension torsion bar pin due to fatigue. Contributing to this accident was that it was not possible for the pilot to flare the helicopter on landing.NTSB LAX92LA152Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Watsonville, CAA failure of the pilot to conduct an adequate pre-flight inspection of the aircraft to ensure that the fuel supply was free of contaminates. Contributing to this accident was fuel contamination.NTSB LAX92LA146Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Huron, CAA separation of the control rotor cuff due to fatigue.NTSB LAX91LA388Accident · 1 fatalLimited investigationFinal reportTexas Helicopter M74 · Farmington, CALoss of engine power for an undetermined reason. Factors related to the accident were: the excessive gross weight of the helicopter, and the pilot's improper use of flight controls due to impairment from use of a drug (marijuanna).NTSB LAX91LA363Accident · Minor injuriesLimited investigationFinal reportBell 47G · Kettleman City, CAA non-mechanical loss of engine power due to fuel exhaustion by the pilot's improper calculation of the fuel supply and subsequent hard landing.NTSB LAX91LA249Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Huron, CAThat unknown pilot(s) impoperly used the throttle control which caused an overspeed condition. Contributing to this accident was the connecting rod bolt fatigue failure.NTSB LAX91LA191Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Delano, CAThat the pilot improperly performed the autorotation by misjudging the flare altitude. Contributing to this accident was the total failure of the freewheeling sprag clutch due to excessive wear and the soft dirt terrain.NTSB LAX90DVD03Accident · No injuriesFinal reportTexas Helicopter M47A Wasp · Stockton, CAThe pilot misjudged the altitude during the flare/touchdown phase of the autorotation. Factors relating to this accident are failure of the right magneto.NTSB LAX90DVA01Accident · Serious injuriesFinal reportHiller 12E · Huron, CAThe pilot failed to properly preflight the airplane before departing on the accident flight and misjudged the flare during the ensuing autorotation. Factors relating to this accident were oil starvation and total failure of the connecting rod.NTSB LAX89DVM02Accident · Minor injuriesFinal reportHiller UH-12E · Salinas, CAThe separation of the torsion coupling in the main rotor drive system.NTSB LAX88DVA16Accident · Minor injuriesFinal reportHiller UH-12E · Helm, CADuring an aerial application flight, the pilot lost control of the helicopter just after liftoff and collided with the terrain. Inspection of the wreckage revealed that the chemical trucks filler hose was still attached to the helicopter when it lifted off.NTSB LAX88DUG06Accident · Minor injuriesFinal reportHiller UH-12E · Thermal, CAShortly after refueling the helicopter & reloading the hopper, the plt took off & was starting to spray a field when the eng suddenly lost power. The plt said the helicopter was dscndg from about 30 ft when the power loss occurred; thus, he barely had time to…NTSB LAX87DVD04Accident · No injuriesFinal reportHiller UH-23-D · Brentwood, CADuring an aerial application flight, the tail boom weight separated and contacted the tail rotor. The pilot lost control of the aircraft and collided with a tree and subsequently the terrain. Post acc invest revealed that the 'pip pins' which secure the tail…NTSB LAX87DVD01Accident · Serious injuriesFinal reportBell 47G4A · Stockton, CAJust after takeoff, the engine experienced a power loss while transporting agricultural equipment. A fractographic examination of the failed fuel disconnect fitting by anamet laboratories, concluded that approximately 70% of the retaining ring on the fuel…NTSB LAX86FVM08Accident · No injuriesFinal reportHiller UH 12E · Gonzales, CAA loss of power was expereinced as the acft descended into a field at the beginning of an aerial application spray run. The plt initiated a forced landing into the field. During the landing the right skid dug into the field, tipping the helicopter onto its…NTSB LAX86FVM06Accident · No injuriesFinal reportHiller UH21E · Salinas, CAThe plt experienced a 'ratcheting' to the right and a decrease in rotor RPM during cruise flt at 75-100 ft AGL. The plt made an autorotation but could not cushion the landing due to the low alt and lack of rotor RPM. The helicopter impacted hard and…NTSB LAX86DVA13Accident · No injuriesFinal reportBell 47G-4A · Shafter, CAShortly after departing the loading rig, en route to an agricultural aerial application operation, the forward coupling tail rotor drive shaft failed. The helicopter was about 10 ft above ground level and about 100 ft west of the loading rig. The pilot…NTSB LAX86DVA09Accident · No injuriesFinal reportHiller UH-12E · Delano, CAThe helicopter rotor blade delaminated shortly after departing the operator's north base at Delano, CA. The investigation determined the blade contained extensive voids on the bond line. The blade was rejected by the manufacturer as being unairworthy. The…NTSB LAX86FVM05Accident · Minor injuriesFinal reportHiller UH12E · Castroville, CAThe acft landed hard and rolled over after the lndg skid failed in a forced lndg. The plt said he was crusing at 500 ft AGL over an open field when he heard a loud bang. The helicopter began to vibrate severely and spiral to the right. The plt lost ground…NTSB LAX86LA113Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Lodi, CAWhile on an aerial agricultural spraying flight the acft engine lost total power. The plt executed an immediate autorotation landing. Upon ground contact, the acft skid for about 8 ft until the front skid contacted the ground furrow and nosed over causing the…NTSB LAX85FA132Accident · Minor injuriesField investigationFinal reportHiller UH12E · Five Points, CAWhile performing an ag flight the helicopter's engin suddenly lost power. At the time the aircraft was near its max allowable gross weight and it was between 3-5FT AGL. As the aircraft yawed left and descended. The pilot in command attempted to land on a…NTSB LAX84LA294Accident · Minor injuriesLimited investigationFinal reportHiller UH-12E (Soloy) · Delano, CAThe helicopter experienced an inflt failure of an eng mount, pn 63181-5, which bent the collective control rod & forced the the collective pitch into the up position. The helicopter then settled into the grapes it was spraying & made a hard landing. An…NTSB LAX84LA194Accident · No injuriesLimited investigationFinal reportBell 47-G4A · Dixon, CAThe acft crashed during a forced landing after the engine quit. The plt stated that, 'three minutes into the crop dusting mission the engine quit and he suspected fuel mismanagement.'NTSB LAX84LA010Accident · No injuriesLimited investigationFinal reportHiller UH12E · Los Banos, CAThe plt loaded the helicopter & started a spraying operation. He stated that as he pulled the helicopter up from the 1st spray run, it started shaking & went partially out of control. He was able to regain enough control to get the helicopter in level flt…