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

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 1 of 2 · 84 cases

## Latest cases

- [NTSB CEN24LA257](https://openairdocs.org/ntsb/CEN24LA257.md): Grumman Acft ENG Cor-Schweizer G-164B · Sedgwick, AR · Accident · Minor injuries · Class 4 · Limited · Final report · Jul 8, 2024 · N6500K · Substantial damage
  > The pilot’s failure to maintain clearance from a power line during the spray pass.
- [NTSB CEN23LA212](https://openairdocs.org/ntsb/CEN23LA212.md): Grumman Acft ENG Cor-Schweizer G-164B · Light, AR · Accident · Minor injuries · Class 4 · Limited · Final report · May 29, 2023 · N6678Q · Substantial damage
  > The pilot exceeding the climb capability of the airplane during takeoff which led to it settling into the ground.
- [NTSB CEN10LA046](https://openairdocs.org/ntsb/CEN10LA046.md): Younkin J R Mullicoupe · Siloam Springs, AR · Accident · Serious injuries · Limited investigation · Final report · Nov 10, 2009 · N273X · Substantial damage
  > A loss of engine power due to fuel starvation for undetermined reasons.
- [NTSB DEN08LA106](https://openairdocs.org/ntsb/DEN08LA106.md): Grumman-Schweizer G-164B · O'Kean, AR · Accident · Serious injuries · Limited investigation · Final report · Jun 18, 2008 · N6601Q · Destroyed
  > An inadvertent accelerated stall. Contributing factors in this accident were the low airspeed, steep angle of bank, and heavy weight.
- [NTSB DFW06CA113](https://openairdocs.org/ntsb/DFW06CA113.md): Grumman-Schweizer G-164B · De Witt, AR · Accident · Minor injuries · Data collection · Final report · Apr 28, 2006 · N48717 · Destroyed
  > The pilot's failure to maintain control of the airplane during takeoff. A contributing factor was the gusty winds.
- [NTSB FTW01LA136](https://openairdocs.org/ntsb/FTW01LA136.md): Grumman-Schweizer G-164B · Powhatan, AR · Accident · 1 fatal · Limited investigation · Final report · Jun 6, 2001 · N48721 · Destroyed
  > the pilot's failure to maintain obstacle clearance while maneuvering after takeoff.
- [NTSB FTW99FA150](https://openairdocs.org/ntsb/FTW99FA150.md): Grumman-Schweizer G164-B · Brinkley, AR · Accident · 1 fatal · Field investigation · Final report · May 26, 1999 · N8285K · Destroyed
  > The pilot's inadvertent VFR flight into instrument meteorological conditions. Contributing factors were the pilots failure to maintain control of the aircraft, spatial disorientation, and the fog.
- [NTSB FTW99FA148](https://openairdocs.org/ntsb/FTW99FA148.md): Beech C18S · Waldron, AR · Accident · 1 fatal · Field investigation · Final report · May 24, 1999 · N9729H · Destroyed
  > the separation of a propeller blade in cruise flight as a result of fatigue cracking emanating from surface corrosion pitting.
- [NTSB FTW96LA232](https://openairdocs.org/ntsb/FTW96LA232.md): Grumman G-164B · Newport, AR · Accident · Minor injuries · Limited investigation · Final report · May 31, 1996 · N6678Q · Substantial damage
  > failure of the pilot to maintain clearance from the power line.
- [NTSB FTW95LA253](https://openairdocs.org/ntsb/FTW95LA253.md): Grumman G-164A · Bigelow, AR · Accident · No injuries · Limited investigation · Final report · Jun 20, 1995 · N7937 · Substantial damage
  > The pilot's failure to maintain clearance with terrain.
- [NTSB FTW95LA254](https://openairdocs.org/ntsb/FTW95LA254.md): Grumman G-164A · Cash, AR · Accident · No injuries · Limited investigation · Final report · Jun 17, 1995 · N4562 · Substantial damage
  > The loss of engine power for undetermined reasons. Factors were the low altitude at which the power loss occurred and the lack of suitable terrain for a forced landing.
- [NTSB FTW95LA154](https://openairdocs.org/ntsb/FTW95LA154.md): Beech G18S · Springdale, AR · Accident · No injuries · Limited investigation · Final report · Apr 2, 1995 · N512E · Substantial damage
  > Engine compartment fire due to undetermined reasons.
- [NTSB FTW94LA209](https://openairdocs.org/ntsb/FTW94LA209.md): Grumman G-164A · Parkin, AR · Accident · No injuries · Limited investigation · Final report · Jun 22, 1994 · N6535 · Substantial damage
  > Total power loss for undetermined reasons. A factor was unsuitable terrain for a forced landing.
- [NTSB FTW93LA172](https://openairdocs.org/ntsb/FTW93LA172.md): Grumman G-164B · Walnut Ridge, AR · Accident · Serious injuries · Limited investigation · Final report · Jun 2, 1993 · N48659 · Destroyed
  > The pilot's failure to maintain adequate clearance.
- [NTSB FTW93LA169](https://openairdocs.org/ntsb/FTW93LA169.md): Grumman G-164A · Weiner, AR · Accident · No injuries · Limited investigation · Final report · May 27, 1993 · N4593 · Substantial damage
  > Partial power loss due to improper installation of the linkage control bracket. A factor was the lack of suitable terrain for the forced landing.
- [NTSB FTW92DPG14](https://openairdocs.org/ntsb/FTW92DPG14.md): Air Tractor AT-300 · Wilmont, AR · Accident · No injuries · Final report · Aug 12, 1992 · N4420S · Substantial damage
  > Power loss due to a failed cracked cylinder. A factor was the lack of suitable terrain for the forced landing.
- [NTSB FTW92DPG02](https://openairdocs.org/ntsb/FTW92DPG02.md): Grumman G-164-B · Mcdougal, AR · Accident · Minor injuries · Final report · Jun 15, 1992 · N8285K · Destroyed
  > The pilots failure to properly plan his take off. A factor was his lack of familiarity with the chemical dispensing equipment.
- [NTSB FTW91DPG10](https://openairdocs.org/ntsb/FTW91DPG10.md): Weatherly 201B · Mc Crory, AR · Accident · No injuries · Final report · May 23, 1991 · N1260W · Substantial damage
  > Loss of the outboard portion of the propeller blade. A factor was the lack of suitable terrain for the forced landing.
- [NTSB FTW91DPG03](https://openairdocs.org/ntsb/FTW91DPG03.md): Grumman G-164A · Earle, AR · Accident · No injuries · Final report · Apr 2, 1991 · N5336 · Substantial damage
  > A power loss for undetrmined reasons. A factor was the muddy/soft terrain in which the forced landing was performed.
- [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 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 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 MKC87LA133](https://openairdocs.org/ntsb/MKC87LA133.md): Grumman G-164B · Mcdougal, AR · Accident · No injuries · Limited investigation · Final report · Jul 9, 1987 · N6609Q · Destroyed
  > The ag airplane was on takeoff roll when the pilot smelled smoke in the cockpit. He stopped the airplane and turned off the fuel and switches before evacuating the airplane. He said the flames were coming from the cowling around the engine. Due to the total…
- [NTSB MKC87LA028](https://openairdocs.org/ntsb/MKC87LA028.md): Grumman-Schweizer G-164B-600 · Earle, AR · Accident · No injuries · Limited investigation · Final report · Dec 3, 1986 · N6898Q · Substantial damage
  > The pilot stated that the powerplant was performing normally during initial climb when, suddenly, the engine experienced a power loss after backfiring. Immediate remedial action resulted in a partial power output but not enough to sustain flight. Emergency…
- [NTSB FTW83LA243](https://openairdocs.org/ntsb/FTW83LA243.md): Weatherly 620 · Cornerstone, AR · Accident · No injuries · Limited investigation · Final report · May 17, 1983 · N4619E · Substantial damage
  > The acft collided with a dirt bank during a forced landing after the engine quit. The plt said he was making a swath runwhen the engine quit. The flagman said he saw black smoke then white smoke as the engine quit. Post crash investigation revealed that the…
- [NTSB FTW82DA334](https://openairdocs.org/ntsb/FTW82DA334.md): Grumman G164A · Marianna, AR · Accident · No injuries · Final report · Aug 17, 1982 · N5364 · Substantial damage
  > The pilot stated that shortly after lift off the engine backfired and lost power. He reported that the engine did not completely quit and there was no visible smoke, flame or oil coming from the engine. Due to his low altitude and heavy load the pilot elected…
- [NTSB FTW81DPG38](https://openairdocs.org/ntsb/FTW81DPG38.md): Grumman G-164 · Manila, AR · Accident · No injuries · Closed · Jun 8, 1981 · N608U · Destroyed
- [NTSB FTW81DPG33](https://openairdocs.org/ntsb/FTW81DPG33.md): Air Tractor AT-300 · Foreman, AR · Accident · Serious injuries · Closed · May 26, 1981 · N4323S · Destroyed
- [NTSB FTW80DPG44](https://openairdocs.org/ntsb/FTW80DPG44.md): Grumman G-164 · Heth, AR · Accident · No injuries · Closed · Jul 8, 1980 · N48476 · Substantial damage
- [NTSB FTW80DPG51](https://openairdocs.org/ntsb/FTW80DPG51.md): Grumman G-164B · Blythevl Afb, AR · Accident · Minor injuries · Closed · Jun 26, 1980 · N48678 · Destroyed
- [NTSB FTW80DPG23](https://openairdocs.org/ntsb/FTW80DPG23.md): Grumman G-164A · Gerrard, AR · Accident · No injuries · Closed · May 20, 1980 · N5364 · Substantial damage
- [NTSB FTW80DPG18](https://openairdocs.org/ntsb/FTW80DPG18.md): Grumman G-164B · Marion, AR · Accident · No injuries · Closed · Mar 22, 1980 · N6652Q · Substantial damage
- [NTSB FTW80DPG11](https://openairdocs.org/ntsb/FTW80DPG11.md): Boeing A75 · Hope, AR · Accident · No injuries · Closed · Jan 14, 1980 · N804RB · Substantial damage
- [NTSB FTW79DPG35](https://openairdocs.org/ntsb/FTW79DPG35.md): Grumman G-164B · Lonoke, AR · Accident · No injuries · Closed · May 14, 1979 · N6746Q · Substantial damage
- [NTSB FTW78DPG75](https://openairdocs.org/ntsb/FTW78DPG75.md): Grumman G-164A · Crawfordsville, AR · Accident · No injuries · Closed · Aug 12, 1978 · N8379 · Substantial damage
- [NTSB FTW78FPG51](https://openairdocs.org/ntsb/FTW78FPG51.md): Grumman G-164A · Stuttgart, AR · Accident · No injuries · Closed · Jun 27, 1978 · N665U · No damage
- [NTSB FTW78DPG49](https://openairdocs.org/ntsb/FTW78DPG49.md): Beech D-17S · Fort Smith, AR · Accident · No injuries · Closed · Jun 25, 1978 · N60149 · Substantial damage
- [NTSB FTW78DPG44](https://openairdocs.org/ntsb/FTW78DPG44.md): Grumman G-164 · Brookland, AR · Accident · No injuries · Closed · Jun 12, 1978 · N4562 · Substantial damage
- [NTSB FTW78DPG31](https://openairdocs.org/ntsb/FTW78DPG31.md): Weatherly 201B · Grady, AR · Accident · No injuries · Closed · May 19, 1978 · N1273W · Substantial damage
- [NTSB FTW78DPG30](https://openairdocs.org/ntsb/FTW78DPG30.md): Grumman G-164A · Stuttgart, AR · Accident · No injuries · Closed · May 10, 1978 · N6680Q · Destroyed
- [NTSB FTW78DPG22](https://openairdocs.org/ntsb/FTW78DPG22.md): Grumman G-164A · Trumann, AR · Accident · No injuries · Closed · Apr 5, 1978 · N7495 · Destroyed
- [NTSB FTW77FPG87](https://openairdocs.org/ntsb/FTW77FPG87.md): Beech D18S · Pine Bluff, AR · Accident · No injuries · Closed · Sep 21, 1977 · N240E · Substantial damage
- [NTSB FTW77DPG63](https://openairdocs.org/ntsb/FTW77DPG63.md): Grumman G-164A · Clarendon, AR · Accident · No injuries · Closed · Jul 8, 1977 · N5361 · Substantial damage
- [NTSB FTW77DPG19](https://openairdocs.org/ntsb/FTW77DPG19.md): Grumman G-164B · Widner, AR · Accident · No injuries · Closed · Feb 22, 1977 · N48476 · Substantial damage
- [NTSB FTW76DPH10](https://openairdocs.org/ntsb/FTW76DPH10.md): Boeing B75 · Dumas, AR · Accident · No injuries · Closed · Sep 6, 1976 · N3996B · Substantial damage
- [NTSB FTW76DPH02](https://openairdocs.org/ntsb/FTW76DPH02.md): Grumman G-164 · Stuttgart, AR · Accident · No injuries · Closed · Aug 23, 1976 · N636U · Substantial damage
- [NTSB FTW76DPG74](https://openairdocs.org/ntsb/FTW76DPG74.md): Grumman G-164B · Marianna, AR · Accident · No injuries · Closed · Jul 2, 1976 · N48397 · Destroyed
- [NTSB FTW76DPG50](https://openairdocs.org/ntsb/FTW76DPG50.md): Grumman G-164A · Carlisle, AR · Accident · Minor injuries · Closed · May 14, 1976 · N975X · Substantial damage
- [NTSB FTW76FRJ14](https://openairdocs.org/ntsb/FTW76FRJ14.md): Beech D18S · Garland City, AR · Accident · No injuries · Closed · Jan 8, 1976 · N947MS · Substantial damage
- [NTSB FTW76DPG03](https://openairdocs.org/ntsb/FTW76DPG03.md): Grumman G-164A · Dumas, AR · Accident · No injuries · Closed · Jul 7, 1975 · N523Y · Substantial damage

Next page: https://openairdocs.org/ntsb.md?engine=52008&state=AR&page=2

## 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" = 'AR' 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=AR

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