# NTSB investigations: Lycoming VO-435 series: Loss of engine power(total) - nonmechanical 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. ## Latest cases - [NTSB LAX06CA180](https://openairdocs.org/ntsb/LAX06CA180.md): Bell 47-G5 · Soledad, CA · Accident · No injuries · Data collection · Final report · May 23, 2006 · N4741R · Substantial damage > fuel exhaustion due to the pilot's inaccurate fuel consumption calculations and failure to refuel the helicopter which resulted in a loss of engine power. - [NTSB LAX04LA158](https://openairdocs.org/ntsb/LAX04LA158.md): Quinn E L Tom Cat MK-5A · Galt, CA · Accident · No injuries · Limited investigation · Final report · Mar 15, 2004 · N8429 · Substantial damage > a loss of engine power due to water contamination of the fuel system. - [NTSB FTW99TA194](https://openairdocs.org/ntsb/FTW99TA194.md): Bell 47G-3B-1 · Sour Lake, TX · Accident · No injuries · Final report · Jul 17, 1999 · N4002G · Substantial damage > The pilot's failure to adequately preflight the helicopter's fuel system resulting in the total loss of engine power as a result of water contamination. Factors were the incorrect filter installed on the fueling truck and the pilot's improper touchdown… - [NTSB IAD99LA024](https://openairdocs.org/ntsb/IAD99LA024.md): Bell 47-G5 · Essex Junction, VT · Accident · Serious injuries · Limited investigation · Final report · Dec 14, 1998 · N8103J · Substantial damage > the pilot's improper entry into the autorotation, which resulted in the loss of power and a low rotor rpm condition. Also causal was the pilot's improper execution of the autorotation which resulted in the hard landing. Factors in the accident were the… - [NTSB LAX96LA287](https://openairdocs.org/ntsb/LAX96LA287.md): Bell 47-G5 · Lost Hills, CA · Accident · No injuries · Limited investigation · Final report · Jul 23, 1996 · N7885S · Substantial damage > improper installation of the carburetor air box. - [NTSB LAX95LA138](https://openairdocs.org/ntsb/LAX95LA138.md): Bell 47 · Harmon Field · Accident · No injuries · Limited investigation · Final report · Mar 17, 1995 · N6569H · Substantial damage > an engine failure due to oil exhaustion from a missing oil pressure relief valve as the result of an improper maintenance inspection. - [NTSB LAX94LA303](https://openairdocs.org/ntsb/LAX94LA303.md): Bell 47G-2A · Scottsdale, AZ · Accident · No injuries · Limited investigation · Final report · Jul 30, 1994 · N6749D · Substantial damage > The pilot's failure to refuel appropriately, the altitude and airspeed at the time the engine stoppage occurred were factors in the accident. - [NTSB NYC94LA110](https://openairdocs.org/ntsb/NYC94LA110.md): Bell 47-G5 · Wareham, MA · Accident · Minor injuries · Limited investigation · Final report · Jul 2, 1994 · N59400 · Substantial damage > The pilot's inadequate inflight planning which resulted in fuel exhaustion and the loss of engine power. - [NTSB FTW92DPG15](https://openairdocs.org/ntsb/FTW92DPG15.md): Bell-Transworld 47G-2 · Birdeye, AR · Accident · No injuries · Final report · Aug 19, 1992 · N9238Z · Substantial damage > Fuel contamination. A factor was the high density altitude. - [NTSB ATL92LA160](https://openairdocs.org/ntsb/ATL92LA160.md): Bell 47G-2 · Slocomb, AL · Accident · Serious injuries · Limited investigation · Final report · Aug 15, 1992 · N2880B · Substantial damage > A hard landing due to a power loss from fuel exhaustion. A factor in the accident was the lack of sustable terrain for the landing. - [NTSB CHI91LA245](https://openairdocs.org/ntsb/CHI91LA245.md): Hiller 1345 · Michigan City, IN · Accident · Serious injuries · Limited investigation · Final report · Aug 3, 1991 · N57972 · Substantial damage > Fuel exhaustion due the pilot's delay in refueling. Factors related to the accident were pressure induced by others (passenger), and the absence of suitable terrain. - [NTSB MIA89LA213](https://openairdocs.org/ntsb/MIA89LA213.md): Bell 47G-2 · Sarasota, FL · Accident · No injuries · Limited investigation · Final report · Aug 5, 1989 · N3550 · Substantial damage > The student pilot's inadequate preflight planning/preparation, which resulted in fuel exhaustion due to an inadequate supply of fuel. Factors related to the accident were: the student pilot's lack of total experience & tree(s) in the emergency landing area. - [NTSB CHI89DEX05](https://openairdocs.org/ntsb/CHI89DEX05.md): Texas Helicopter OH-13H/M74A · New Richmond, IN · Accident · No injuries · Final report · Jul 13, 1989 · N10002 · Substantial damage > The pilot's misjudgement of the fuel supply which resulted in fuel exhaustion. - [NTSB MIA88LA250](https://openairdocs.org/ntsb/MIA88LA250.md): Continental Copters MK-5A · Valley Park, MS · Accident · Minor injuries · Limited investigation · Final report · Aug 10, 1988 · N9086T · Substantial damage > The pilot stated that he thought he had 8 gallons of fuel prior to takeoff. The engine failed about 100 ft AGL and he attempted to stretch the glide of the helicopter by using collective pitch. The aircraft hit hard and rolled over. Only 1 quart of fuel was… - [NTSB CHI88DEM05](https://openairdocs.org/ntsb/CHI88DEM05.md): Bell 47G-2A · Midland, MI · Accident · No injuries · Final report · May 31, 1988 · N440TG · Substantial damage > The plt rprtd that before takeoff, he checked the fuel gage & concluded there was enough fuel to dispense his load. However, after spraying out the load, he started to return to the landing site & then the eng lost power from fuel exhaustion. The helicopter… - [NTSB LAX87DVM03](https://openairdocs.org/ntsb/LAX87DVM03.md): Bell 47G-5 · Salinas, CA · Accident · No injuries · Final report · Jun 28, 1987 · N6288N · Substantial damage > At the end of an aerial application operation, enroute to the airport, the engine quit. The pilot autorotated the helicopter onto a soft field, where on touchdown, the helicopter was substantially damaged. Inspection of the helicopter revealed that the fuel… - [NTSB CHI87DEV02](https://openairdocs.org/ntsb/CHI87DEV02.md): Bell 47G2 · Peoria Heights, IL · Accident · No injuries · Final report · Jun 22, 1987 · N15395 · Substantial damage > Returning from a powerline patrol flight, the engine surged twice and quit. The pilot executed an autorotation to the only available landing site, a high school football field. On touchdown the blades flexed and severed the tailboom. Investigation revealed… - [NTSB MIA86LA228](https://openairdocs.org/ntsb/MIA86LA228.md): Continental Copters Tomcat MK5A · Indiantown, FL · Accident · Minor injuries · Limited investigation · Final report · Aug 5, 1986 · N9086T · Substantial damage > The aerial application helicopter crashed just after lift-off after sustaining a power failure, the plt stated that he thought the reason for the failure could have been fuel starvation since he had observed some foreign matter in the fuel when he drained the… - [NTSB CHI86FA017](https://openairdocs.org/ntsb/CHI86FA017.md): Bell 47G-5 · Plainfield, WI · Accident · 1 fatal · Field investigation · Final report · Oct 27, 1985 · N7840S · Destroyed > The acft crashed into trees and nosed into the wooded terrain after a loss of powr. The helicopter had been refueled the day before the acc. Normal fuel load was 20 gals. The plt had sprayed 20 acres & flown 9 miles to another field to spray but aborted due… - [NTSB CHI85FEX04](https://openairdocs.org/ntsb/CHI85FEX04.md): Texas Helicopter OH13E/M74 · Veedersburg, IN · Accident · Serious injuries · Final report · Jul 17, 1985 · N10000 · Destroyed > The acft was destroyed during a hard forced landing in a soybean fld following a loss of pwr. Inspection of the helicopter revealed the carburetor, fuel filter and fuel tank were void of fuel. The plt received received serious injuries during the accident and… - [NTSB SEA85LA155](https://openairdocs.org/ntsb/SEA85LA155.md): Bell 47G2 · Roosevelt, WA · Accident · No injuries · Limited investigation · Final report · Jul 2, 1985 · N11VH · Substantial damage > A total loss of power occurred while on a CFR 137 flight, due to fuel exhaustion. Although the fuel gauge showed 1/2 tank of fuel, the pilot failed to visually check the fuel prior to this flight. During autorotation onto a wheat field a hard landing occurred… - [NTSB NYC85LA081](https://openairdocs.org/ntsb/NYC85LA081.md): Bell 47G-3 · Plainsboro, NJ · Accident · No injuries · Limited investigation · Final report · Jun 15, 1985 · N49882 · Substantial damage > The helicpopter crashed shortly after takeoff with 55 gallons of fertilizer on board. The plt stated that each time he made a swath run over the field the blades of the helicopter were picking up some of the liquid fertilizer. On takeoff helicopter felt… - [NTSB NYC84FGT02](https://openairdocs.org/ntsb/NYC84FGT02.md): Bell 47G-3 · Landisburg, PA · Accident · No injuries · Final report · Jun 4, 1984 · N49882 · Substantial damage > The helicopter lost eng power while turning on approach for landing, autorotated to a hard landing with main rotor contact to the tail boom. Two gals of fuel were drained from the acft fuel tank at the accident site. An eng run up was performed & found… - [NTSB LAX83FA448](https://openairdocs.org/ntsb/LAX83FA448.md): Bell 47G · Oceanside, CA · Accident · No injuries · Field investigation · Final report · Sep 19, 1983 · N62221 · Substantial damage > Shortly after takeoff, the eng lost power at an alt of aprx 400 ft AGL. An autorotative landing was made on uneven terrain beside a stream with weeds aprx 3 ft high. During touchdown, the main rotor struck the tail boom. An inspection of the engine revealed… - [NTSB MIA83LA212](https://openairdocs.org/ntsb/MIA83LA212.md): Bell 47J · Labelle, FL · Accident · Minor injuries · Limited investigation · Final report · Aug 26, 1983 · N5824 · Substantial damage > While at an altitude of about 150 ft, the eng lost power. The plt initiated an autorotation, but during the landing, the main rotor struck trees & the helicopter was substantially damaged. The plt estimated there was 15 gal of fuel on board during the… - [NTSB LAX83FUM07](https://openairdocs.org/ntsb/LAX83FUM07.md): Bell 47G-5 · Valley Center, CA · Accident · No injuries · Final report · Jun 14, 1983 · N2252W · Substantial damage > The acft was damaged during a forced landing following a power loss while engaged in aerial application. The pilot took off with 25 gallons of fuel which he said was usually enough for spraying 40-50 acres. This job was 19 acres but it was 10-12 miles away at… - [NTSB SEA83LA122](https://openairdocs.org/ntsb/SEA83LA122.md): Bell 47G-2 · Zillah, WA · Accident · No injuries · Limited investigation · Final report · Jun 11, 1983 · N41721 · Substantial damage > The rotorcraft made a hard landing after colliding with trees during an autorotation. The acft had experienced an enginefailure while on a repositioning flight between aerial application operations and was forced to land. The acft was autorotated into an… - [NTSB SEA82DA112](https://openairdocs.org/ntsb/SEA82DA112.md): Bell 47G-2 · Harrah, WA · Accident · Serious injuries · Final report · Jul 15, 1982 · N6145C · Substantial damage > The pilot reported that before taking off, the fuel quantity guages indicated there was sufficient fuel to complete one more load and still have an adequate reserve. After dispensing the load, the engine lost power while he was returning to the nurse truck.… - [NTSB CHI82DA171](https://openairdocs.org/ntsb/CHI82DA171.md): Bell 47G-5 · Sublette, IL · Accident · Minor injuries · Final report · May 17, 1982 · N7841S · Substantial damage > Prior to this flight, the helicopter had been flown about 1 hr from roselle to Sublette, IL, then it was flown another 1/2 hr to survey the area to be sprayed. About 10 minutes after departing to spray, the engine lost power. The pilot started an autorotative… ## 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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41525') AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 353)) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?engine=41525&occurrence=353 --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.