# NTSB investigations: Pratt & Whitney R-985 series, ID

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 WPR20FA206](https://openairdocs.org/ntsb/WPR20FA206.md): Cessna TU206 · Coeur d'Alene, ID · Accident · 8 fatal · Class 3 · Field · Final report · Jul 5, 2020 · N6373U · 2 aircraft · Destroyed
  > The failure of the pilots of both airplanes to see and avoid the other airplane.
- [NTSB GAA15CA145](https://openairdocs.org/ntsb/GAA15CA145.md): Beech D17S · Idaho Falls, ID · Accident · No injuries · Data collection · Final report · Jun 28, 2015 · N114H · 2 aircraft · Substantial damage
  > While taxiing as a flight of two, the pilot of the blue Beechcraft became distracted and impacted the red Beechcraft which had stopped.
- [NTSB LAX08LA193](https://openairdocs.org/ntsb/LAX08LA193.md): Snow S2C · Glenn's Ferry, ID · Accident · 1 fatal · Limited investigation · Final report · Jun 24, 2008 · N1661S · Substantial damage
  > Failure of the pilot to maintain an adequate airspeed resulting in an aerodynamic stall/spin while maneuvering.
- [NTSB LAX08LA177](https://openairdocs.org/ntsb/LAX08LA177.md): Grumman-Schweizer G-164B · Wilder, ID · Accident · Minor injuries · Limited investigation · Final report · Jun 13, 2008 · N48571 · Substantial damage
  > The loss of engine power as a result of failure of the supercharger. Contributing to the accident was the lack of suitable terrain for the forced landing.
- [NTSB SEA07CA169](https://openairdocs.org/ntsb/SEA07CA169.md): Boeing Stearman A75N1 · Coeur d'Alene, ID · Accident · No injuries · Data collection · Final report · Jun 8, 2007 · N450SS · Substantial damage
  > The pilot's failure to maintain directional control during landing. The crosswind condition was a contributing factor.
- [NTSB SEA05CA132](https://openairdocs.org/ntsb/SEA05CA132.md): Weatherly 620B · Teton, ID · Accident · No injuries · Data collection · Final report · Jun 25, 2005 · N2021V · Substantial damage
  > The pilot's failure to maintain clearance from power transmission lines while maneuvering.
- [NTSB SEA02LA121](https://openairdocs.org/ntsb/SEA02LA121.md): Grumman-Schweizer G-164B · Shelley, ID · Accident · Minor injuries · Limited investigation · Final report · Jul 4, 2002 · N297AL · Destroyed
  > A loss of engine power due to the manufacturer's improperly machined threads, which prevented the cylinder base/head halves from being properly assembled, leading to fatigue propagation and the ultimate separation of the cylinder. A contributing factor was…
- [NTSB SEA99LA127](https://openairdocs.org/ntsb/SEA99LA127.md): Beech D17S · Arco, ID · Accident · No injuries · Limited investigation · Final report · Jul 24, 1999 · N217SD · Substantial damage
  > Fuel starvation which resulted in a loss of power. The pilot's improper management of fuel was a factor.
- [NTSB SEA99LA079](https://openairdocs.org/ntsb/SEA99LA079.md): Snow S2C · Paul, ID · Accident · No injuries · Limited investigation · Final report · Jun 1, 1999 · N1665S · Substantial damage
  > The pilot's inaccurate weight and balance calculations, and his delay in jettisoning the load which resulted in his failure to clear rising terrain. Contributing to the accident was the high density altitude, and the pilot's intentional operation with known…
- [NTSB SEA98LA140](https://openairdocs.org/ntsb/SEA98LA140.md): Grumman-Schweizer G-164A · Caldwell, ID · Accident · No injuries · Limited investigation · Final report · Jul 17, 1998 · N7951 · Substantial damage
  > The pilot-in-command's misjudgment of clearance with a power line, resulting in a collision with the line. Factors included a power line and dark night light conditions in the spray area.
- [NTSB SEA98LA079](https://openairdocs.org/ntsb/SEA98LA079.md): Air Tractor AT-301 · Idaho Falls, ID · Accident · No injuries · Limited investigation · Final report · May 19, 1998 · N4326S · Substantial damage
  > The pilot's inadequate inflight decision to land with a tailwind and his failure to maintain aircraft control. Also contributing was the pilot's improper setting of the fuel mixture which resulted in a partial loss of engine power.
- [NTSB SEA97LA169](https://openairdocs.org/ntsb/SEA97LA169.md): Weatherly 620B · Newdale, ID · Accident · No injuries · Limited investigation · Final report · Jul 17, 1997 · N9022H · Substantial damage
  > The pilot's inadequate preflight/planning preparation which resulted in the aircraft exceeding the maximum gross weight, and inability to climb. A factor was high density altitude.
- [NTSB SEA96LA155](https://openairdocs.org/ntsb/SEA96LA155.md): Grumman G-164A · New Plymouth, ID · Accident · No injuries · Limited investigation · Final report · Jul 15, 1996 · N48442 · Substantial damage
  > a cracked cylinder head, which resulted in partial loss of engine power during takeoff. Factors relating to the accident were: the pilot allowed the gross weight of the airplane to be exceeded, and tall wheat (crop) in the emergency landing area.
- [NTSB SEA96LA103](https://openairdocs.org/ntsb/SEA96LA103.md): Schweizer G164B · Moscow, ID · Accident · No injuries · Limited investigation · Final report · May 29, 1996 · N48559 · Substantial damage
  > inflight loss of an unsecured access plug from the engine crankcase, which resulted in a loss of engine oil and a forced landing. Factors relating to the accident were: hilly terrain, and foreign material (engine oil) on the windscreen which limited forward…
- [NTSB SEA95LA154](https://openairdocs.org/ntsb/SEA95LA154.md): Air Tractor AT-301 · Roberts, ID · Accident · No injuries · Limited investigation · Final report · Jul 17, 1995 · N4326S · Substantial damage
  > A loss of engine power due to the separation of the number 3 cylinder exhaust valve rocker arm shaft from the cylinder head, which disabled movement of the exhaust valve. A factor was the lack of suitable terrain for the forced landing.
- [NTSB SEA94LA193](https://openairdocs.org/ntsb/SEA94LA193.md): Grumman G-164B · Wilder, ID · Accident · No injuries · Limited investigation · Final report · Jul 19, 1994 · N48571 · Substantial damage
  > The failure of the left brake master cylinder and the pilot's inadequate remedial action when the aircraft collided with an embankment during an intentional ground loop.
- [NTSB SEA90LA196](https://openairdocs.org/ntsb/SEA90LA196.md): Beech C-45H · Twin Falls, ID · Accident · Minor injuries · Limited investigation · Final report · Sep 24, 1990 · N450G · Substantial damage
  > The pilot's inability to maintain directional control during a takeoff in strong crosswind conditions.
- [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 SEA87LA121](https://openairdocs.org/ntsb/SEA87LA121.md): Grumman G-164A · Viola, ID · Accident · No injuries · Limited investigation · Final report · Jun 24, 1987 · N5285 · Substantial damage
  > During an aerial applications maneuver a total loss of power occurred due to the internal failure of the supercharger impeller. During the forced landing the left main gear collapsed causing the aircraft to nose over inverted.
- [NTSB SEA85LA098](https://openairdocs.org/ntsb/SEA85LA098.md): Grumman G-164A · Kendrick, ID · Accident · No injuries · Limited investigation · Final report · Apr 26, 1985 · N5285 · Substantial damage
  > The plt stated that he had completed a spray application & was making a normal landing when the left main gear failed. Subsequently, the acft veered off the left side of the rwy & nosed over. AD 76-13-10, pertaining to a dye penetrant inspection of the main…
- [NTSB SEA83LA154](https://openairdocs.org/ntsb/SEA83LA154.md): Weatherly 201C · Tensed, ID · Accident · No injuries · Limited investigation · Final report · Jul 21, 1983 · N9089W · Substantial damage
  > The acft had made 3 passes since reloading, so the acft was fairly heavy and was on an uphill pass as it began a turn- around. In an attempt to maneuver and clear 100 ft trees the acft stalled and the rt wing tip hit a tree.
- [NTSB SEA78FYA26](https://openairdocs.org/ntsb/SEA78FYA26.md): Grumman G-164B · Homedale, ID · Accident · No injuries · Closed · Sep 20, 1978 · N48542 · Destroyed
- [NTSB SEA78FYA17](https://openairdocs.org/ntsb/SEA78FYA17.md): Grumman G-164B · Burley, ID · Accident · No injuries · Closed · Jul 19, 1978 · N6704Q · Destroyed
- [NTSB SEA78DYA12](https://openairdocs.org/ntsb/SEA78DYA12.md): Grumman G-164A · Terreton, ID · Accident · No injuries · Closed · Jun 19, 1978 · N8712H · Substantial damage
- [NTSB SEA76DYA45](https://openairdocs.org/ntsb/SEA76DYA45.md): Callair B1A · Newdale, ID · Accident · No injuries · Closed · Jul 29, 1976 · N7260V · Substantial damage
- [NTSB SEA75DYG47](https://openairdocs.org/ntsb/SEA75DYG47.md): Grumman G-164A · Deary, ID · Accident · No injuries · Closed · Jun 29, 1975 · N5286 · Substantial damage
- [NTSB SEA75DYG29](https://openairdocs.org/ntsb/SEA75DYG29-148601.md): Weatherly 201B · Genesee, ID · Accident · No injuries · Closed · Apr 19, 1975 · N1273W · Substantial damage
- [NTSB SEA74DYG29](https://openairdocs.org/ntsb/SEA74DYG29.md): Weatherly 201 · Nezperce, ID · Accident · No injuries · Closed · Apr 21, 1974 · N1261W · Substantial damage
- [NTSB SEA73DYA31](https://openairdocs.org/ntsb/SEA73DYA31.md): Grumman G-164 · Idaho Falls, ID · Accident · No injuries · Closed · Jun 12, 1973 · N745Y · Destroyed
- [NTSB SEA72DYA30](https://openairdocs.org/ntsb/SEA72DYA30.md): Beech C-18S · Blackfoot, ID · Accident · Minor injuries · Closed · Apr 20, 1972 · N4289A · Substantial damage
- [NTSB SEA70DWG17](https://openairdocs.org/ntsb/SEA70DWG17.md): Boeing E75 · Craigmont, ID · Accident · No injuries · Closed · May 23, 1970 · N3960B · Substantial damage
- [NTSB SEA70D0048](https://openairdocs.org/ntsb/SEA70D0048.md): Grumman G-164A · Twin Falls, ID · Accident · No injuries · Closed · Aug 9, 1969 · N654U · Substantial damage
- [NTSB SEA69D0258](https://openairdocs.org/ntsb/SEA69D0258.md): Fairchild M-62 · Bruneau, ID · Accident · No injuries · Closed · May 22, 1969 · N56110 · Substantial damage
- [NTSB SEA69D0245](https://openairdocs.org/ntsb/SEA69D0245.md): Stearman A75 · Lewiston, ID · Accident · No injuries · Closed · May 6, 1969 · N58712 · Substantial damage
- [NTSB SEA68D0274](https://openairdocs.org/ntsb/SEA68D0274.md): Aero Comdr B-1 · Moscow, ID · Accident · No injuries · Closed · Feb 28, 1968 · N7281V · Substantial damage
- [NTSB SEA68D0086](https://openairdocs.org/ntsb/SEA68D0086.md): Grumman G-164 · Jerome, ID · Accident · No injuries · Closed · Aug 25, 1967 · N654U · Substantial damage
- [NTSB SEA66F0048](https://openairdocs.org/ntsb/SEA66F0048.md): Boeing A75 · Homedale, ID · Accident · Minor injuries · Closed · Jul 9, 1965 · N4812V · Substantial damage
- [NTSB SEA66F0057](https://openairdocs.org/ntsb/SEA66F0057.md): Fairchild M62C · Homedale, ID · Accident · No injuries · Closed · Jun 18, 1965 · N56110 · Substantial damage
- [NTSB SEA65F0067](https://openairdocs.org/ntsb/SEA65F0067.md): Boeing B75N1 · Reubens, ID · Accident · No injuries · Closed · Jun 3, 1965 · N68441 · Substantial damage
- [NTSB UNK64X2679](https://openairdocs.org/ntsb/UNK64X2679.md): Boeing A75N1 · Genesee, ID · Accident · No injuries · Closed · Jul 6, 1964 · N58712 · Substantial damage

## 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" = 'ID' 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 ('52008'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=52008&state=ID

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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.