# NTSB investigations, LA: Loss of engine power(partial) - mech failure/malf 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 DFW07CA037](https://openairdocs.org/ntsb/DFW07CA037.md): Hughes 269B · Houma, LA · Accident · No injuries · Data collection · Final report · Dec 11, 2006 · N9396F · Substantial damage > A partial loss of engine power as a result of a cracked engine cylinder and broken spark plug which resulted in a hard landing. A factor was that it was not possible to attain proper rotor RPM. - [NTSB DFW05CA186](https://openairdocs.org/ntsb/DFW05CA186.md): Grumman-Schweizer G-164A · Tallulah, LA · Accident · Minor injuries · Data collection · Final report · Jul 21, 2005 · N8891H · Substantial damage > The partial loss of engine power as result of the fracture of the number five-cylinder exhaust valve rocker arm mounting boss. A contributing factor was the lack of suitable terrain for the forced landing. - [NTSB FTW04LA176](https://openairdocs.org/ntsb/FTW04LA176.md): Rockwell S-2R · Jonesville, LA · Accident · Minor injuries · Limited investigation · Final report · Jul 6, 2004 · N8486V · Substantial damage > The pilot's failure to maintain clearance with the power lines. - [NTSB FTW01LA193](https://openairdocs.org/ntsb/FTW01LA193.md): Grumman G164B · Rayville, LA · Accident · No injuries · Limited investigation · Final report · Aug 28, 2001 · N2LU · Substantial damage > the partial failure of the magneto drive coupling while maneuvering, which resulted in a loss of engine power and a forced landing. A contributing factor to the accident was the lack of suitable terrain for the forced landing. - [NTSB FTW00LA239](https://openairdocs.org/ntsb/FTW00LA239.md): Grumman-Schweizer G-164B · Kaplan, LA · Accident · No injuries · Limited investigation · Final report · Aug 21, 2000 · N6506K · Substantial damage > the failure of the supercharger during takeoff. A contributing factor was the lack of suitable terrain for the forced landing. - [NTSB FTW99FA262](https://openairdocs.org/ntsb/FTW99FA262.md): Beech A36TC · Franklinton, LA · Accident · 4 fatal · Field investigation · Final report · Sep 19, 1999 · N206WJ · Destroyed > The pilot's inadvertent stall while attempting to clear trees during a go-around. Factors were the pilot's misjudgment of the airplane's distance and speed during the precautionary landing and the partial loss of engine power due to a perforated piston. - [NTSB FTW96LA388](https://openairdocs.org/ntsb/FTW96LA388.md): Schweizer G-164B · Ferriday, LA · Accident · No injuries · Limited investigation · Final report · Sep 17, 1996 · N8498K · Substantial damage > The partial loss of engine power due to a cracked cylinder head. Factors were the oil leak which restricted the pilot's visual lookout and the lack of suitable terrain for the forced landing. - [NTSB FTW92LA116](https://openairdocs.org/ntsb/FTW92LA116.md): Grumman G-164A · Welsh, LA · Accident · No injuries · Limited investigation · Final report · Apr 14, 1992 · N9546 · Substantial damage > Partial power loss due to the cracked engine cylinder. A factor was the lack of suitable terrain for the forced landing. - [NTSB FTW91FA025](https://openairdocs.org/ntsb/FTW91FA025.md): Piper PA28-181 · Olla, LA · Accident · 1 fatal · Field investigation · Final report · Dec 16, 1990 · N8460Q · Destroyed > The collapsed carburetor float and restricted movement of the fuel metering needle. Factors were the darknight, the unsuitable terrain, and the operator's maintenance personnel failure to inspect (repair) the engine. - [NTSB FTW90DRD07](https://openairdocs.org/ntsb/FTW90DRD07.md): Grumman G-164A · Ville Platte, LA · Accident · No injuries · Final report · May 2, 1990 · N8938H · Destroyed > Partial loss of engine power due to a cracked number four cylinder intake rocker box housing. The lack of a suitable forced landing site was a related factor. - [NTSB FTW90DRD05](https://openairdocs.org/ntsb/FTW90DRD05.md): Schweizer G-164B · Reeves, LA · Accident · No injuries · Final report · Apr 13, 1990 · N48455 · Substantial damage > Loss of engine power due to a frozen rocker arm. - [NTSB FTW90LA071](https://openairdocs.org/ntsb/FTW90LA071.md): Piper PA-28-140 · Rayne, LA · Accident · Minor injuries · Limited investigation · Final report · Feb 13, 1990 · N1785T · Substantial damage > Failure of the #3 exhaust valve, which necessitated a forced landing on unsuitable terrain. - [NTSB FTW89DRD09](https://openairdocs.org/ntsb/FTW89DRD09.md): Schweizer G-164A · Bunkie, LA · Accident · No injuries · Final report · Jun 23, 1989 · N602Y · Substantial damage > The 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 FTW89LA114](https://openairdocs.org/ntsb/FTW89LA114.md): Cessna 150J · Minden, LA · Accident · No injuries · Limited investigation · Final report · Jun 20, 1989 · N60625 · Destroyed > The 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 FTW88DRD01](https://openairdocs.org/ntsb/FTW88DRD01.md): Grumman G-164A · Port Allen, LA · Accident · No injuries · Final report · Oct 8, 1987 · N6743Q · Substantial damage > The pilot experienced a partial loss of power during pull-up from a swath run. He attempted to return to the field he was working in order to make an emergency landing but was unable to due to inadequate engine power. He landed in high vegetation and flipped… - [NTSB FTW86LRD16](https://openairdocs.org/ntsb/FTW86LRD16.md): Grumman G-164B · Abbeville, LA · Accident · No injuries · Final report · Jun 17, 1986 · N48592 · Substantial damage > The pilot stated he made a successful forced landing, due to loss of power, and then had to flip the aircraft to prevent colliding with a lateral (above ground irrigation system) with a water depth of about four feet. Subsequent engine examination revealed… - [NTSB FTW86LRD12](https://openairdocs.org/ntsb/FTW86LRD12.md): Grumman G-164A · Branch, LA · Accident · No injuries · Final report · May 21, 1986 · N5407 · Substantial damage > Shortly after takeoff, a partial power loss occurred & the plt made a forced landing in a soft plowed field, where the acft nosed over onto its back. The plt rprtd the loss of power was due to failure of the eng blower. - [NTSB FTW86FA079](https://openairdocs.org/ntsb/FTW86FA079.md): Cessna 411A · Bossier City, LA · Accident · 6 fatal · Field investigation · Final report · May 8, 1986 · N49DD · Destroyed > The pilot reportedly did an unusual amount of engine run-up before pulling onto the runway. He then performed another run-up before departing. This is evidence that he was aware of a problem with his aircraft. The engine(s) were popping and puffing black… - [NTSB FTW85FA310](https://openairdocs.org/ntsb/FTW85FA310.md): Bell UH-1B · Saint James, LA · Accident · 1 fatal · Field investigation · Final report · Aug 8, 1985 · N1385W · Destroyed > Acft was at a 150' hover preparing to pick up a log when it experienced a power loss. Witnesses stated that they heard a loud 'bang' and the pilot radioed 'get out of the way'. Acft autorotated thru 60' to 80' trees with very low rotor RPM and impacted with… - [NTSB FTW85LA215](https://openairdocs.org/ntsb/FTW85LA215.md): Cessna 210E · Natchitoches, LA · Accident · Serious injuries · Limited investigation · Final report · May 8, 1985 · N2367F · Substantial damage > The pilot experienced partial power loss due to ingestion of the alternate air door shaft needle bearing rollers into the engine, and cross firing of the right magneto. He reportedly closed the throttle and made a gear up forced landing. The aircraft slid… - [NTSB FTW85FA188](https://openairdocs.org/ntsb/FTW85FA188.md): Bell UH-1B · Boutte, LA · Accident · Serious injuries · Field investigation · Final report · Apr 15, 1985 · N2252A · Destroyed > The plt had stabilized acft in a 125' hover, prior to picking up a load, when the eng spooled down and acft entered talltrees with low rotor RPM and pitched nose down as it descended thru the trees. Ground witnesses heard 2 loud 'bangs' prior to the acft… - [NTSB FTW84LA282](https://openairdocs.org/ntsb/FTW84LA282.md): Bell 47G-5A · Houma, LA · Accident · Minor injuries · Limited investigation · Final report · Jun 21, 1984 · N14807 · Substantial damage > The helicopter autorotated into trees and marsh land after a partial loss of power. The acft was on a pipeline patrol atlow alt at the time of the power loss. Examination of the engine after the accident revealed that the fuel control governor spring, p/n… - [NTSB FTW84LA253](https://openairdocs.org/ntsb/FTW84LA253.md): Grumman G-164A · Kinder, LA · Accident · No injuries · Limited investigation · Final report · May 26, 1984 · N9693 · Substantial damage > The plt reported after the accident that he was dispensing fertilizer and had just flown through a heavy rain shower when the engine began to lose power. A forced landing was made in a flooded rice field and the acft nosed over. The pilot stated that he was… - [NTSB FTW84LA185](https://openairdocs.org/ntsb/FTW84LA185.md): Grumman G-164A · Eunice, LA · Accident · No injuries · Limited investigation · Final report · Apr 4, 1984 · N9936 · Substantial damage > The plt reported that the engine lost power on takeoff and return to the rwy was not possible, so he landed on the edge of a pond. A post accident investigaiton revealed a crack in the #7 cyl head between the spark plug holes. The engine had just gotten a… - [NTSB FTW84LA179](https://openairdocs.org/ntsb/FTW84LA179.md): Cessna U206G · Lake Charles, LA · Accident · Minor injuries · Limited investigation · Final report · Apr 1, 1984 · N7383N · Substantial damage > The acft hit a tree and a ditch during a forced landing on a road after the engine lost power. Examination of the engineafter the accident revealed that the throttle rod had disconnected from the throttle control arm at the bolt hole. The hole had worn… - [NTSB FTW83LA297](https://openairdocs.org/ntsb/FTW83LA297.md): Bell 206L-1 · Lafayette, LA · Accident · No injuries · Limited investigation · Final report · Jun 27, 1983 · N3904L · Substantial damage > The helicopter made a hard precautionary landing after the plt noted the rotor RPM and N2 would bleed off when collective pitch was increased to 80 percent torque. The plt returned to the arpt and elected to autorotate instead of landing with power available.… - [NTSB FTW83FA252](https://openairdocs.org/ntsb/FTW83FA252.md): Piper PA-60 · New Orleans, LA · Accident · 1 fatal · Field investigation · Final report · May 30, 1983 · N52AC · Destroyed > Witnesses reported that when the acft was stabilized on final apch, it pitched up slightly & yawed, then rolled left to an inverted attitude & crashed in a canal. Several witnesses stated that the left prop was windmilling. One stated the left prop had… - [NTSB FTW83LA062](https://openairdocs.org/ntsb/FTW83LA062.md): Cessna 140 · Ruston, LA · Accident · Minor injuries · Limited investigation · Final report · Dec 12, 1982 · N89100 · Substantial damage > On takeoff the pilot heard a loud bang sound then lost engine power. The pilot made a 180 degree descending turn back toward the airport. At the edge of the airport the pilot made a hard touchdown on all three gear assemblies. Investigation revealed the… - [NTSB FTW82DA178](https://openairdocs.org/ntsb/FTW82DA178.md): Bell 206L-1 · Cameron, LA · Accident · No injuries · Final report · May 15, 1982 · N2048X · Substantial damage > While enroute to refuel the pilot experienced a loss of power and elected to autorotate to the ground. The aircraft rocked forward then back on landing and the main rotor severed the tailboom. Investigation revealed both fuel flow switches were stuck in the… - [NTSB FTW82DA169](https://openairdocs.org/ntsb/FTW82DA169.md): Grumman G164A · Welsh, LA · Accident · No injuries · Final report · May 8, 1982 · N9937 · Substantial damage > During the initial takeoff with a load of fertilizer the engine lost power and the load was dumped. A forced landing wasmade in a plowed, wet field and the aircraft nosed over. Investigation revealed the cylinder head failed. ## 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."eventStateOrRegion" = 'LA' 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 ``` This list as a web page: https://openairdocs.org/ntsb?occurrence=352&state=LA --- 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.