Final NTSB investigations: Pratt & Whitney R-985 series, ND
39 cases on aircraft whose registry engine model is Pratt & Whitney R-985 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 | 1 |
|---|---|
| 1972 | 1 |
| 1976 | 1 |
| 1977 | 1 |
| 1981 | 1 |
| 1982 | 1 |
| 1983 | 2 |
| 1984 | 4 |
| 1985 | 1 |
| 1986 | 1 |
| 1987 | 2 |
| 1988 | 1 |
| 1991 | 2 |
| 1992 | 2 |
| 1993 | 1 |
| 1994 | 1 |
| 1995 | 1 |
| 1997 | 2 |
| 1998 | 1 |
| 1999 | 1 |
| 2001 | 3 |
| 2003 | 1 |
| 2004 | 1 |
| 2005 | 1 |
| 2006 | 1 |
| 2007 | 1 |
| 2009 | 1 |
| 2010 | 1 |
| 2012 | 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\" = 'ND' AND c.\"eventCountry\" = 'USA'
AND c.\"completionStatus\" = 'Completed'
AND 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"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" = 'ND' AND c."eventCountry" = 'USA'
AND c."completionStatus" = 'Completed'
AND 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" 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 CEN12LA458Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Egeland, NDThe partial loss of engine power for reasons that could not be determined during postaccident examinations.NTSB CEN11CA071Accident · No injuriesData collectionFinal reportGrumman G-164 · Michigan, NDThe pilot's failure to abort the takeoff roll following a noticeable loss of engine power due to low engine compression and a magneto failure.NTSB CEN09CA452Accident · Minor injuriesData collectionFinal reportWeatherly 620B · New England, NDThe loss of engine power for undetermined reasons while maneuvering at low altitude.NTSB CHI07CA161Accident · No injuriesData collectionFinal reportWeatherly 201C · Mc Clusky, NDThe pilot's failure to check for fuel contamination during the preflight inspection, which resulted in a loss of engine power shortly after takeoff due to water contamination. Contributing factors to the accident included the rough/uneven field and the…NTSB CHI06CA162Accident · Minor injuriesData collectionFinal reportWeatherly 201B · Bowbells, NDThe pilot's failure to maintain clearance to the rising terrain while maneuvering during the agricultural application flight. Contirbuting factors were the low altitude operation and the rising terrain.NTSB CHI05LA176Accident · No injuriesLimited investigationFinal reportSchweizer G-164B · Buxton, NDA loss of engine power on takeoff due to undetermined reasons. A factor was the ditch that the airplane contacted during the forced landing.NTSB CHI04CA151Accident · No injuriesData collectionFinal reportGrumman-Schweizer G-164B · Hope, NDThe pilot's failure to maintain clearance from the tree branches during the aerial-application flight. A factor to the accident was the trees.NTSB CHI03LA134Accident · Minor injuriesLimited investigationFinal reportWeatherly 620A · Melville, NDThe pilot's failure to maintain clearance from the wires. The low altitude operation and the wires were contributing factors.NTSB CHI01LA273Accident · 1 fatalLimited investigationFinal reportGrumman G-164B · Hazelton, NDthe pilot's ostentatious display when he performed a low level manuever and stalled the airplane.NTSB CHI01LA217Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Mandan, NDthe pilot failed to maintain clearance from the powerline. Additional factors were the thermal lift and the powerline.NTSB CHI01LA134Accident · No injuriesLimited investigationFinal reportAir Tractor G-164A · Casselton, NDThe pilot's failure to maintain directional control of the airplane while recovering from a bounced landing. A factor was the collapse of the right main landing gear.NTSB CHI99LA162Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G-164B · Buxton, NDthe number one cylinder's separation, the pilot's visual lookout not possible through the oil given off by the number one cylinder, and the embankment. A factor in the accident was the oil.NTSB CHI98LA175Accident · No injuriesLimited investigationFinal reportBoeing Stearman A75-N1 · West Fargo, NDthe pilot's failure to assure an adequate fuel supply in order to complete the flight. A factor associated with the accident was the soft terrain on which the forced landing was made.NTSB CHI97LA278Accident · 1 fatalLimited investigationFinal reportSchweizer G-164B · Larimore, NDthe pilot delaying the swath run turnaround maneuver at the end of the field boundary, and his failure to maintain clearance between the airplane and the high tension wires. A factor was the pilot's inattentiveness regarding the time to begin the swath run…NTSB CHI97LA184Accident · Minor injuriesLimited investigationFinal reportWeatherly 201C · Buffalo, NDthe pilot's inadequate preflight planning/preparation, and his failure to maintain directional control of the airplane. Water on the runway and the soft terrain were related factors.NTSB CHI95LA250Accident · No injuriesLimited investigationFinal reportGrumman G-164 · Park River, NDthe loss of power due to the primary lead in the left magneto being grounded against the case, and the improper clearance of the breaker point gaps. A factor was the lack of suitable terrain on which to perform the forced landing.NTSB CHI94DTG01Accident · No injuriesFinal reportGrumman G-164-A · La Moure, NDfailure of the pilot to maintain directional control.NTSB CHI93LA232Accident · No injuriesLimited investigationFinal reportSchweizer G-164 · Northwood, NDThe pilot in command's failure to attain a proper touchdown point.NTSB CHI92DTG04Accident · No injuriesFinal reportGrumman G-164B · Grandin, NDThe cracked cylinder which resulted in a forced landing. The lack of suitable terrain on which to make an emergency landing was a factor.NTSB CHI92DTG03Accident · No injuriesFinal reportGrumman G-164A · Orr, NDA stall encountered during the spray run reversal turn. Factors related to the accident are the attempted downwind turn, and insufficient altitude for recovery.NTSB CHI91DTG08Accident · No injuriesFinal reportGrumman G164B · Minto, NDInadequate aircraft servicing, inadequate aircraft preflight, fuel contamination, and unsuitable soft terrain in which to effect an emergency landing.NTSB CHI91DTG03Accident · No injuriesFinal reportSchweizer G164 · Gwinner, NDInadvertent closing of the mixture by the pilot. Factors related to the accident are inadequate control shape, or size, and inattentiveness of the pilot.NTSB DEN88LA131Accident · No injuriesLimited investigationFinal reportGrumman G-164 · Ayr, NDNTSB DEN87LA129Accident · No injuriesLimited investigationFinal reportBoeing A75N1 · Mandan, NDThe pilot and his son were ferrying a recently purchased Boeing stearman to their home in Ohio. During landing roll, at an en route stop, a gust of wind lifted the tail section and the acft groundlooped. The left wing struck the runway and the acft was…NTSB DEN87LA101Accident · Minor injuriesLimited investigationFinal reportBoeing A75N1 · Argusville, NDThe plt took off with a load of 46-0-0 fertilizer and proceeded to the field to be treated. The plt said when he arrived his flagger was not in position so he initiated a goaround. When the plt had turned 90 deg onto the x-wind leg the acft stalled. The plt…NTSB DEN86LA205Accident · No injuriesLimited investigationFinal reportSchweizer G164A · Grandin, NDPlt was attempting to take off from 2600 ft x 50 ft sod strip with full fuel (36 gal) and 160 gal of M22, a fungicide. Center of rwy was soft from recent rains. Plt began takeoff roll on right side of rwy. Right wing and spray boom contacted tall grain stalks…NTSB DEN85LTG05Accident · No injuriesFinal reportGrumman G164A · Colfax, NDThe plt noticed the spray pump was stuck in the off position shortly after takeoff for the aerial application flt. The decision was made to land on a private strip and during landing on the soft fld, the acft contacted high vegetation and nosed down.NTSB DEN84LA270Accident · No injuriesLimited investigationFinal reportWeatherly 201B · Grand Forks, NDDuring initial takeoff climb at an alt of aprx 100 ft AGL, engine began missing. Unable to maintain alt, forced landing was made in a plowed field during which landing gear was torn from the acft. Inspection revealed #5 cylinder head separated from the…NTSB DEN84LA253Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Arthur, NDAcft flown at high gross weight in high density altitude conditions. The plt said takeoff pwr was added too late to stopthe descent at the start of a spray run.NTSB DEN84LA204Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Page, NDEngine siezed during takeoff climb at alt of aprx 100 ft AGL. Acft contacted trees during the forced landing. Examination of engine turbo section revealed the blower section had separated as a result of bearing failure. According to a mechanic who…NTSB DEN84LA179Accident · No injuriesLimited investigationFinal reportGrumman G-164 · Kindred, NDThe engine quit on the first swath run after a carburetor change. Substantial damage resulted from the forced landing. Subsequent examination of the carburetor revealed fouling by sealant material partially dissolved by fuel.NTSB DEN83LA166Accident · No injuriesLimited investigationFinal reportWeatherly 201B · Thompson, NDThe acft crashed during descent for the first swath run. Investigation revealed that the pilot applied back pressure to the control stick to flare from the descent. The acft did not respond and continued to descend. The impact was hard enough to tear the left…NTSB DEN83LA170Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Page, NDWhile spraying at dusk, the plt was concerned about injuring a 'non-target crop' across the road to the south from the field that was being sprayed. He stated that an irrigation system was sitting pointed southwest, and that as he was entering a swath to the…NTSB DEN82DA157Accident · No injuriesFinal reportCessna 172 · Grafton, NDThe pilot stated that when he began to taxi he noticed a Cessna 172 with its engine running in front of a hangar, about 500 feet ahead and to his left. Continuing his taxi, the pilot's attention was diverted by an aircraft on the right. When he looked forward…NTSB DEN81FTG15Accident · Serious injuriesClosedBoeing B75N1 · Northwood, NDNTSB MKC77FTG10Accident · Minor injuriesClosedBoeing A75N1 · Grand Forks, NDNTSB MKC76DTG24Accident · No injuriesClosedGrumman G-164A · Cavalier, NDNTSB MKC72FTG23Accident · No injuriesClosedBoeing A75N1 · Argusville, NDNTSB MKC66F0129Accident · No injuriesClosedBoeing A75 · Grand Forks, ND