# NTSB investigations: Pratt & Whitney R-985 series 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. Page 12 of 38 · 1,867 cases ## Cases, newest first - [NTSB ANC90LA098](https://openairdocs.org/ntsb/ANC90LA098.md): De Havilland DHC-2 · Caribou Lake, AK · Accident · No injuries · Limited investigation · Final report · Jun 27, 1990 · N5147G · Substantial damage > A power loss caused by the failure of a piston cylinder. - [NTSB MKC90LA134](https://openairdocs.org/ntsb/MKC90LA134.md): Weatherly 201-B · Stuttgart, AR · Accident · No injuries · Limited investigation · Final report · Jun 16, 1990 · N1260W · Substantial damage > Fuel exhaustion induced power loss caused by the pilot's failure to refuel the airplane. - [NTSB LAX90LA221](https://openairdocs.org/ntsb/LAX90LA221.md): Grumman G21A · Long Beach, CA · Accident · Serious injuries · Limited investigation · Final report · Jun 16, 1990 · N86640 · Substantial damage > The pilot's failure to retract the landing gear resulting in an inadvertent wheels-down landing in water. In addition, a loss of elevator control was encountered due to a stress corrosion failure of an elevator control cable turnbuckle as a result of… - [NTSB FTW90DRD10](https://openairdocs.org/ntsb/FTW90DRD10.md): Grumman G-164B · Mamou, LA · Accident · No injuries · Final report · Jun 4, 1990 · N6693Q · Substantial damage > Pilot misjudged wind information. Factors contributing to the accident were the tailwind, the trees and the levee. - [NTSB CHI90DEV04](https://openairdocs.org/ntsb/CHI90DEV04.md): Grumman G-164B · Princeton, IL · Accident · No injuries · Final report · May 18, 1990 · N6695Q · Substantial damage > The pilot-in-command's failure to maintain adequate clearance from obstacles during flight at low altitude, resulting in wire strike. - [NTSB LAX90DVA03](https://openairdocs.org/ntsb/LAX90DVA03.md): Naval Aircraft Factory N3N-3 · Madera, CA · Accident · Serious injuries · Final report · May 5, 1990 · N45184 · Destroyed > The pilot inadvertently descending into the ground. Contributing to the accident was the inflight opening of the hopper lid which partially obscured the pilot's vision. - [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 FTW90DPA01](https://openairdocs.org/ntsb/FTW90DPA01.md): Grumman G-164B · Bonham, TX · Accident · No injuries · Final report · Apr 4, 1990 · N48372 · Substantial damage > A power loss for undetermined reasons. A factor was the lack of suitable terrain for the forced landing. - [NTSB MIA90WA095](https://openairdocs.org/ntsb/MIA90WA095.md): Beech H-18 · Nassau, Bahamas · Accident · No injuries · Foreign investigation · Mar 25, 1990 · N7952K · Substantial damage - [NTSB MKC90LA067](https://openairdocs.org/ntsb/MKC90LA067.md): Grumman AG-CAT G-164A · Parkin, AR · Accident · No injuries · Limited investigation · Final report · Mar 17, 1990 · N5336 · Substantial damage > Total failure of the engine's master connecting rod. - [NTSB FTW90DRD03](https://openairdocs.org/ntsb/FTW90DRD03.md): Grumman G-164A · Glynn, LA · Accident · No injuries · Final report · Feb 22, 1990 · N930X · Substantial damage > Loss of directional control on the ground, due to intermittent locking of the right brake during the landing roll. - [NTSB CHI90LA072](https://openairdocs.org/ntsb/CHI90LA072.md): Beech E18S · Oak Creek, WI · Accident · No injuries · Limited investigation · Final report · Jan 25, 1990 · N48K · Substantial damage > Improper planning/decision by the pilot. Factors related to the accident were: the adverse weather conditions, accumulation of structural and/or induction ice, and dark night. - [NTSB ANC90FA027](https://openairdocs.org/ntsb/ANC90FA027.md): Beech E18F · Anchorage, AK · Accident · No injuries · Field investigation · Final report · Jan 15, 1990 · N900TH · Substantial damage > Inadequate supervision by company/operator personnel and inadequate preflight planning/preparation by the captain, which resulted in an improperly loaded aircraft. - [NTSB ANC90LA022](https://openairdocs.org/ntsb/ANC90LA022.md): de Havilland DHC-2 · Kodiak, AK · Accident · No injuries · Limited investigation · Final report · Dec 28, 1989 · N67691 · Substantial damage > Improper compensation for wind conditions by the pilot, which resulted in loss of aircraft control during takeoff, and subsequent impact with the water. The weather conditions were contributing factors. - [NTSB MIA90WA015](https://openairdocs.org/ntsb/MIA90WA015.md): Beech G18S · San Andros, Bahamas · Accident · No injuries · Foreign investigation · Oct 20, 1989 · N610RB · Substantial damage - [NTSB SEA90LA008](https://openairdocs.org/ntsb/SEA90LA008.md): Boeing A75N1 · Salmon, ID · Accident · No injuries · Limited investigation · Final report · Oct 19, 1989 · N75863 · Destroyed > Failure of pilot to properly evaluate weather conditions through mountainous terrain and fly at an altitude high enough to maintain terrain clearance. - [NTSB LAX89DUM04](https://openairdocs.org/ntsb/LAX89DUM04.md): Beech D175 · El Cajon, CA · Accident · No injuries · Final report · Sep 30, 1989 · N9465H · 2 aircraft · Minor damage > Inadequate visual lookout by the pilot of the other aircraft (N9645H). - [NTSB MIA89TL#07](https://openairdocs.org/ntsb/MIA89TL%2307.md): Grumman G-164B · Mims, FL · Accident · No injuries · Class 3 · Final report · Sep 26, 1989 · N6720Q · Substantial damage - [NTSB MIA89IA247](https://openairdocs.org/ntsb/MIA89IA247.md): Beech G18S · Jackson, MS · Incident · No injuries · Incident investigation · Final report · Sep 13, 1989 · N9604R · Minor damage > Failure of the pilot to correctly perform the emergency gear extension procedures. Contributing to the accident was the failure of the normal gear extension system. - [NTSB MKC89LA189](https://openairdocs.org/ntsb/MKC89LA189.md): Consolidated-Vultee BT-13A · Kansas City, MO · Accident · No injuries · Limited investigation · Final report · Aug 27, 1989 · N63884 · Substantial damage > Inadequate control tower service provided by tower personnel, and inadequate remedial action by the vehicle driver. The pilot's lack of visual lookout was considered to be a contributing factor. - [NTSB DEN89LA201](https://openairdocs.org/ntsb/DEN89LA201.md): Waco UPF7 · Watkins, CO · Accident · No injuries · Limited investigation · Final report · Aug 27, 1989 · N2369Q · Substantial damage > Failure of the left brake assembly, and subsequent loss of directional control by the pilot. - [NTSB CHI89DEX06](https://openairdocs.org/ntsb/CHI89DEX06.md): Grumman G-164A · Sullivan, IN · Accident · No injuries · Final report · Aug 2, 1989 · N952X · Substantial damage > A 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 SEA89LA138](https://openairdocs.org/ntsb/SEA89LA138.md): Grumman 164B · Hermiston, OR · Accident · No injuries · Limited investigation · Final report · Jul 19, 1989 · N6632Q · Substantial damage > The airport owners failure to mark a hidden hazard. - [NTSB FTW89DRA08](https://openairdocs.org/ntsb/FTW89DRA08.md): Grumman-Schweizer G-164B · Anahuac, TX · Accident · Minor injuries · Final report · Jul 18, 1989 · N6633Q · Destroyed > Failure of the supercharger bearing. The dirt bank was a contributing factor. - [NTSB ANC89LA123](https://openairdocs.org/ntsb/ANC89LA123.md): De Havilland DHC-2 · Kodiak, AK · Accident · Serious injuries · Limited investigation · Final report · Jul 13, 1989 · N5354G · Substantial damage > Pilot-in-command's continued VFR flight into know IFR flt conditions, resulting in a collision with rising terrain. - [NTSB DEN89LA160](https://openairdocs.org/ntsb/DEN89LA160.md): Grumman-Schweizer G-164B · Holden, UT · Accident · No injuries · Limited investigation · Final report · Jul 8, 1989 · N6754Q · Substantial damage > The pilot's misjudgement of the effect of high density altitude on a heavily loaded aircraft. - [NTSB MKC89LA148](https://openairdocs.org/ntsb/MKC89LA148.md): Grumman G-164B · Stockville, NE · Accident · No injuries · Limited investigation · Final report · Jul 2, 1989 · N6629Q · Substantial damage > Total failure of the powerplant caused by a broken cylinder. - [NTSB ANC89LA103](https://openairdocs.org/ntsb/ANC89LA103.md): De Havilland DHC-2 · Iliamna, AK · Accident · Serious injuries · Limited investigation · Final report · Jun 24, 1989 · N5595M · Substantial damage > Inadequate annual inspection by maintenance personnel. - [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 SEA89LA124](https://openairdocs.org/ntsb/SEA89LA124.md): de Havilland DHC-2 · Kassan, AK · Accident · No injuries · Limited investigation · Final report · Jun 21, 1989 · N46DG · Substantial damage > The excessive taxi speed used by the pilot in the existing weather conditions. Contributing to the accident was the gusty tailwind. - [NTSB LAX89LA218](https://openairdocs.org/ntsb/LAX89LA218.md): de Havilland DHC-2 · Trinity Center, CA · Accident · No injuries · Limited investigation · Final report · Jun 17, 1989 · N1215 · Substantial damage > An interruption of fuel to the engine for undetermined reasons. - [NTSB MIA89FA176](https://openairdocs.org/ntsb/MIA89FA176.md): Boeing A-75 · Daytona Beach, FL · Accident · 1 fatal · Field investigation · Final report · Jun 15, 1989 · N57946 · Destroyed > The biplane pilot failed to see and avoid the collision with the banner being towed by the other airplane. - [NTSB FTW89DRD06](https://openairdocs.org/ntsb/FTW89DRD06.md): Grumman-Schweizer G-164B · Ville Platte, LA · Accident · No injuries · Final report · Jun 6, 1989 · N6693Q · Substantial damage > Wear and/or failure of the carburetor/float. Factors related to the accident were: the terrain conditions. - [NTSB FTW89DRA05](https://openairdocs.org/ntsb/FTW89DRA05.md): Boeing A75 · East Bernard, TX · Accident · Minor injuries · Final report · May 19, 1989 · N1722B · Destroyed > Water in fuel from improper servicing of the aircraft and improper preflight by the pilot. The tailwind & soft/wet terrain were contributing factors. - [NTSB CHI89LA088](https://openairdocs.org/ntsb/CHI89LA088.md): Avions Max Holste MH 1521 · Big Rapids, MI · Accident · No injuries · Limited investigation · Final report · May 14, 1989 · N163MH · Substantial damage > Inadequate compensation for wind conditions by the pilot and his failure to maintain directional control. The the variable/gusty/crosswind condition was considered to be a contributing factor. - [NTSB MIA89LA141](https://openairdocs.org/ntsb/MIA89LA141.md): Boeing A75N1 · New Smyrna Bch., FL · Accident · No injuries · Limited investigation · Final report · Apr 28, 1989 · N57946 · Substantial damage > The failure of the pilot to adequately preflight the airplane. Contributing to the accident was the pilot's failure to use the brakes to maintain directional control and poor inspection of the airplane by company maintenance personnel. - [NTSB MKC89LA085](https://openairdocs.org/ntsb/MKC89LA085.md): Grumman G-164A · Advance, MO · Accident · No injuries · Limited investigation · Final report · Mar 25, 1989 · N48385 · Substantial damage > The pilot's inadequate visual lookout resulting in his failure to see power lines in time to avoid them. Contributing to the accident was the reduced visibility due to fog. - [NTSB NYC89LA108](https://openairdocs.org/ntsb/NYC89LA108.md): Beech TC-45J · Johnstown, PA · Accident · No injuries · Limited investigation · Final report · Mar 6, 1989 · N45861 · Substantial damage > Failure of the pilot to maintain runway alignment. The crosswind and snow covered runway were related factors. - [NTSB LAX89DVA06](https://openairdocs.org/ntsb/LAX89DVA06.md): Grumman G-164A · Riverdale, CA · Accident · Serious injuries · Final report · Mar 1, 1989 · N8547H · Destroyed > Inadequate visual lookout by the pilot, when he diverted his attention. The power line was a related factor. - [NTSB SEA89FA027](https://openairdocs.org/ntsb/SEA89FA027.md): de Havilland DHC-2 · Kasaan, AK · Accident · 1 fatal · Field investigation · Final report · Dec 14, 1988 · N89U · Destroyed > The plt planned to land at a seaplane base that was located in a bowl-shaped cove. Drg the landing, the acft touched down long on water swells & the plt elected to go around. Witnesses rprtd that drg the go-around, the plt initiated a steep turn while still… - [NTSB LAX89LA008](https://openairdocs.org/ntsb/LAX89LA008.md): Cessna 182A · Visalia, CA · Accident · No injuries · Limited investigation · Final report · Oct 4, 1988 · N5888B · 2 aircraft · Substantial damage > A Cessna 182A & a Boeing A75 collided on the rwy. The pilot of the Boeing stated that he was doing touch & go ldgs & had the ldg Cessna in sight. The Boeing plt then lost site of the Cessna after it touched down on rwy 30. The Boeing plt assumed the Cessna… - [NTSB LAX88DVA15](https://openairdocs.org/ntsb/LAX88DVA15.md): Schweizer G-164A · Laton, CA · Accident · No injuries · Final report · Sep 22, 1988 · N9946 · Substantial damage - [NTSB ANC88LA138](https://openairdocs.org/ntsb/ANC88LA138.md): de Havilland DHC-2 · Mcgrath, AK · Accident · No injuries · Limited investigation · Final report · Sep 16, 1988 · N98JH · Substantial damage > While cruising, the pilot-in-command experienced a rough engine and finally an unexplained power reduction to idle. He was unable to glide the float equipped airplane to a body of water and executed a forced landing on the tundra where the airplane sustained… - [NTSB MKC88LA160](https://openairdocs.org/ntsb/MKC88LA160.md): Grumman G-164A · Hebron, NE · Accident · No injuries · Limited investigation · Final report · Aug 19, 1988 · N5329 · Destroyed > While making a aerial application swath run, the pilot was checking his spray booms because of some malfunctioning nozzles. Exiting the field between two groups of trees on the border he failed to see power line poles. He struck the wires, then the terrain,… - [NTSB ATL88DKG13](https://openairdocs.org/ntsb/ATL88DKG13.md): Grumman G-164A · Fadette, AL · Accident · No injuries · Final report · Aug 9, 1988 · N8573H · Substantial damage > The pilot reported a partial power loss during an aerial application flight. The aircraft landed in the crops. The pilot stated that he found the number 3 cylinder partially separated from the engine. - [NTSB CHI88DEV04](https://openairdocs.org/ntsb/CHI88DEV04.md): Grumman G164A · Chenoa, IL · Accident · No injuries · Final report · Aug 3, 1988 · N8980H · Substantial damage > Unavailability of suitable terrain on which to accomplish a forced landing. - [NTSB MKC88LA133](https://openairdocs.org/ntsb/MKC88LA133.md): Grumman 164A · Poplar Bluff, MO · Accident · No injuries · Limited investigation · Final report · Jul 19, 1988 · N8706H · Substantial damage > The pilot experienced an engine failure while attempting to land during an aerial application flight. Altitude was not adequate to select a suitable forced landing area. The aircraft impacted in a pipeline right of way and came to rest in a small stream,… - [NTSB MKC88LA132](https://openairdocs.org/ntsb/MKC88LA132.md): Grumman G-164A · Knobel, AR · Accident · Minor injuries · Limited investigation · Final report · Jul 19, 1988 · N6553 · Substantial damage > Proper touchdown point not attained, and aircraft control not maintained by the pilot in command. - [NTSB FTW88DRD11](https://openairdocs.org/ntsb/FTW88DRD11.md): Schweizer G-164B · Cheneyville, LA · Accident · Minor injuries · Final report · Jun 29, 1988 · N48585 · Destroyed > The ag airplane was returning after spraying chemical when the engine started to lose power. During the forced landing on a highway the left wing struck a road sign. No mechanical reason for the engine power loss was found. The acft had an annual inspection… - [NTSB CHI88LA136](https://openairdocs.org/ntsb/CHI88LA136.md): de Havilland DHC2-MK I · Warroad, MN · Accident · Minor injuries · Limited investigation · Final report · Jun 20, 1988 · N49771 · Substantial damage > The pilot decided to land in the lake approximately 1000 yds from the sea plane base and was attempting a step-taxi back to the base when the acft struck a sand bar. The pilot stated that he was taxiing near tall grass where he thought the water was deep… Next page: https://openairdocs.org/ntsb.md?engine=52008&page=13 ## 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 ('52008')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?engine=52008&page=12 --- 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.