# 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 6 of 38 · 1,867 cases

## Cases, newest first

- [NTSB LAX04CA258](https://openairdocs.org/ntsb/LAX04CA258.md): Boeing A 75N1 · Auburn, CA · Accident · No injuries · Data collection · Final report · Jul 11, 2004 · N56416 · Substantial damage
  > the pilot undergoing instruction's overcontrol of the aircraft by his excessive use of the rudder control and failure to maintain directional control of the airplane during landing, which resulted in a ground loop. Contributing factors to the accident were…
- [NTSB IAD04LA027](https://openairdocs.org/ntsb/IAD04LA027.md): Grumman G-164A · Chatsworth, NJ · Accident · No injuries · Limited investigation · Final report · Jul 2, 2004 · N915X · Substantial damage
  > A blocked internal oil passage, which resulted in inadequate lubrication of the blower impeller shaft, and the subsequent partial loss of engine power.
- [NTSB CHI04CA163](https://openairdocs.org/ntsb/CHI04CA163.md): Grumman G-164A · Hutchinson, MN · Accident · No injuries · Data collection · Final report · Jun 23, 2004 · N5339 · Substantial damage
  > The pilot's failure to maintain airspeed during the low altitude turn after takeoff. A factor to the accident was the low altitude and the swampy terrain condition.
- [NTSB CHI04CA151](https://openairdocs.org/ntsb/CHI04CA151.md): Grumman-Schweizer G-164B · Hope, ND · Accident · No injuries · Data collection · Final report · Jun 10, 2004 · N48517 · Substantial damage
  > The pilot's failure to maintain clearance from the tree branches during the aerial-application flight. A factor to the accident was the trees.
- [NTSB FTW04LA157](https://openairdocs.org/ntsb/FTW04LA157.md): Snow S2C · La Feria, TX · Accident · No injuries · Limited investigation · Final report · Jun 5, 2004 · N9492R · Substantial damage
  > The pilot's failure to maintain clearance from the obstacle while maneuvering to perform an aerial application. A contributing factor was the high vegetation.
- [NTSB SEA04LA085](https://openairdocs.org/ntsb/SEA04LA085.md): Stinson SR-10E · Eliza Island, WA · Accident · No injuries · Limited investigation · Final report · May 16, 2004 · N27782 · Substantial damage
  > The pilot's misjudgment of altitude/distance resulting in an undershoot of the runway.
- [NTSB ANC04LA038](https://openairdocs.org/ntsb/ANC04LA038.md): Grumman G21 · Unalaska, AK · Accident · No injuries · Limited investigation · Final report · Apr 5, 2004 · N22932 · Substantial damage
  > The inadvertent ground loop/swerve by the second pilot during the landing roll, and the first (check) pilot's inadequate supervision of the second pilot, which resulted in a loss of control and substantial damage to the airplane. Factors associated with the…
- [NTSB NYC04LA040](https://openairdocs.org/ntsb/NYC04LA040.md): Beech H-18 · Westminster, MD · Accident · No injuries · Limited investigation · Final report · Nov 23, 2003 · N22XL · Substantial damage
  > The pilot's failure to maintain control of the airplane after a failure of one propeller system. Factors in the accident were the failure to perform maintenance inspection and the failure of a bolt in the left propeller blade system.
- [NTSB LAX04CA010](https://openairdocs.org/ntsb/LAX04CA010.md): Avions Max Holste MH 1521 Broussard · El Cajon, CA · Accident · No injuries · Data collection · Final report · Oct 11, 2003 · N239HL · Substantial damage
  > the pilot's premature liftoff and his failure to attain an adequate takeoff airspeed, which resulted in a stall. The pilot's failure to correctly set the pitch trim before takeoff was a factor.
- [NTSB NYC04CA005](https://openairdocs.org/ntsb/NYC04CA005.md): Howard DGA-15P · Leonardtown, MD · Accident · No injuries · Data collection · Final report · Oct 9, 2003 · N9271H · Substantial damage
  > The pilot's failure to maintain directional control during an aborted landing.
- [NTSB CHI03LA274](https://openairdocs.org/ntsb/CHI03LA274.md): Boeing A-75 · La Crosse, WI · Accident · No injuries · Limited investigation · Final report · Aug 20, 2003 · N806RB · Substantial damage
  > The total loss of engine power due to a fatigue fracture of the engine's crankshaft. A factor was the corn crop.
- [NTSB CHI03LA254](https://openairdocs.org/ntsb/CHI03LA254.md): Weatherly 620A · Doland, SD · Accident · No injuries · Limited investigation · Final report · Aug 10, 2003 · N4656M · Substantial damage
  > The pilot's failure to maintain clearance from the wires and directional control not being possible due to the failure of the brake system. Factors contributing to the accident were the wires, the trees, and the failure of the brake system.
- [NTSB LAX03LA239](https://openairdocs.org/ntsb/LAX03LA239.md): Grumman G-164 · Hamilton City, CA · Accident · No injuries · Limited investigation · Final report · Jul 22, 2003 · N477Y · Substantial damage
  > The pilot's failure to maintain adequate airspeed to avert stalling during a low altitude turn.
- [NTSB ATL03LA118](https://openairdocs.org/ntsb/ATL03LA118.md): Boeing PT-17 · Hendersonville, NC · Accident · Minor injuries · Limited investigation · Final report · Jul 19, 2003 · N411BT · Substantial damage
  > The pilot's inadequate preflight planning/preparation of fuel required for the flight, resulting in a total loss of engine power due to fuel exhaustion. A factor in the accident was pilot impairment due to alcohol consumption.
- [NTSB ANC03CA088](https://openairdocs.org/ntsb/ANC03CA088.md): de Havilland DHC-2 · Iliamna, AK · Accident · No injuries · Data collection · Final report · Jun 25, 2003 · N930TG · Substantial damage
  > The pilot's incorrect selection of the fuel selector valve position during takeoff which resulted in fuel starvation. A factor associated with the accident was inadequate transition training provided to the pilot by the company/operator management.
- [NTSB LAX03LA195](https://openairdocs.org/ntsb/LAX03LA195.md): Boeing Stearman E75 · Casa Grande, AZ · Accident · No injuries · Limited investigation · Final report · Jun 12, 2003 · N6030V · Substantial damage
  > The pilot's inadequate compensation for the wind conditions, and his failure to maintain aircraft control resulting in an inadvertent ground loop.
- [NTSB ANC03LA055](https://openairdocs.org/ntsb/ANC03LA055.md): de Havilland DHC-2 · Anchorage, AK · Accident · No injuries · Limited investigation · Final report · Jun 7, 2003 · N343WB · Substantial damage
  > The pilot's incorrect positioning of the fuel tank selector to a nearly empty tank, which resulted in a loss of engine power due to fuel starvation, and subsequent emergency landing at an off-airport site.
- [NTSB ANC03LA054](https://openairdocs.org/ntsb/ANC03LA054.md): deHAVILLAND DHC-2 · Sitka, AK · Accident · No injuries · Limited investigation · Final report · May 30, 2003 · N60TF · Substantial damage
  > The pilot's failure to retract the landing gear wheels of an amphibious float equipped airplane after departure from a paved runway, which resulted in a nose over when the airplane was landed on a nearby lake with the wheels extended. A contributing factor in…
- [NTSB CHI03LA134](https://openairdocs.org/ntsb/CHI03LA134.md): Weatherly 620A · Melville, ND · Accident · Minor injuries · Limited investigation · Final report · May 24, 2003 · N4650W · Substantial damage
  > The pilot's failure to maintain clearance from the wires. The low altitude operation and the wires were contributing factors.
- [NTSB LAX03FA111](https://openairdocs.org/ntsb/LAX03FA111.md): Beech 3NM · Anza, CA · Accident · 3 fatal · Field investigation · Final report · Mar 11, 2003 · N14437 · Destroyed
  > the failure of the pilot to maintain an adequate airspeed resulting in a stall and loss of control.
- [NTSB SEA03LA034](https://openairdocs.org/ntsb/SEA03LA034.md): Beech E18S · Burlington, WA · Accident · No injuries · Limited investigation · Final report · Feb 4, 2003 · N48K · Substantial damage
  > The pilot's failure to adequately remove ice/frost from the aircraft and to maintain airspeed during the initial climb after takeoff. An inadequate preflight was a factor.
- [NTSB LAX03LA064](https://openairdocs.org/ntsb/LAX03LA064.md): Waco SRE · Prescott, AZ · Accident · Minor injuries · Limited investigation · Final report · Jan 10, 2003 · N1252W · Substantial damage
  > The pilot's failure to maintain directional control during landing resulting in a collision with a runway sign. Factors in the accident were the tailwind and the malfunctioning brake system.
- [NTSB ANC02LA123](https://openairdocs.org/ntsb/ANC02LA123.md): de Havilland DHC-2 · Bethel, AK · Accident · No injuries · Limited investigation · Final report · Sep 20, 2002 · N144Q · Substantial damage
  > The instructor pilot's inadequate preflight by his failure to remove all frost from the wings prior to takeoff, which resulted in an inadvertent stall and in-flight collision with terrain.
- [NTSB ANC02LA098](https://openairdocs.org/ntsb/ANC02LA098.md): de Havilland DHC-2 · Ketchikan, AK · Accident · No injuries · Limited investigation · Final report · Aug 19, 2002 · N64393 · 2 aircraft · Minor damage
  > The pilot's failure to maintain an adequate visual outlook during cruise climb, which resulted in a midair collision between the two airplanes.
- [NTSB DEN02LA091](https://openairdocs.org/ntsb/DEN02LA091.md): Boeing D75N1 · Watkins, CO · Accident · No injuries · Limited investigation · Final report · Aug 13, 2002 · N64796 · Substantial damage
  > the pilot's improper recovery from a bounced landing, resulting in an inadvertent ground loop. A contributing factor was the flight instructor's inadequate supervision of the pilot.
- [NTSB MIA02LA150](https://openairdocs.org/ntsb/MIA02LA150.md): Boeing E75 · Leesburg, FL · Accident · Minor injuries · Limited investigation · Final report · Jul 28, 2002 · N1242V · Destroyed
  > Loss of engine power for undetermined reasons during takeoff, resulting in the airplane colliding with the ground and nosing over during the subsequent forced landing.
- [NTSB CHI02LA213](https://openairdocs.org/ntsb/CHI02LA213.md): Weatherly 201C · Malta, IL · Accident · No injuries · Limited investigation · Final report · Jul 24, 2002 · N1296W · Substantial damage
  > The inflight fire and loss of engine power due to undetermined reasons. Factors associated with the accident were the lack of suitable terrain on which to land and the corn crop which was contacted during the landing.
- [NTSB CHI02CA194](https://openairdocs.org/ntsb/CHI02CA194.md): Grumman G-164 · Browning, IL · Accident · No injuries · Data collection · Final report · Jul 17, 2002 · N623U · Substantial damage
  > the failure of the pilot-in-command to maintain sufficient airspeed while maneuvering. The initial stages of a stall/mush condition, and the low maneuvering altitude due to the agricultural application pass, were contributing factors.
- [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 FTW02LA194](https://openairdocs.org/ntsb/FTW02LA194.md): Grumman-Schweizer G-164A · Basile, LA · Accident · No injuries · Limited investigation · Final report · Jul 1, 2002 · N8917H · Substantial damage
  > the loss of engine power as a result of fuel starvation. A contributing factor was the lack of suitable terrain for the forced landing.
- [NTSB FTW02FA195](https://openairdocs.org/ntsb/FTW02FA195.md): Beech H-18 · Tatum, NM · Accident · 1 fatal · Field investigation · Final report · Jul 1, 2002 · N835K · Destroyed
  > The failure of the pilot to maintain clearance.
- [NTSB ATL02LA131](https://openairdocs.org/ntsb/ATL02LA131.md): Beech 18 · Venice, FL · Accident · No injuries · Limited investigation · Final report · Jun 26, 2002 · N1002C · Destroyed
  > The pilot's improper use of flight controls during takeoff, that resulted in the loss of control during takeoff.
- [NTSB ANC02LA060](https://openairdocs.org/ntsb/ANC02LA060.md): de Havilland DHC-2 · Nikiski, AK · Accident · No injuries · Limited investigation · Final report · Jun 24, 2002 · N211AW · Substantial damage
  > The pilot's excessive rate of descent resulting in a hard landing on water.
- [NTSB ATL02LA105](https://openairdocs.org/ntsb/ATL02LA105.md): Stearman A75N1 · Panacea, FL · Accident · No injuries · Limited investigation · Final report · May 24, 2002 · N5545F · Substantial damage
  > Loss of engine power due to fuel starvation resulting from fuel restriction through the fuel shutoff valve.
- [NTSB CHI02LA132](https://openairdocs.org/ntsb/CHI02LA132.md): Grumman-Schweizer G-164B · Hordville, NE · Accident · No injuries · Limited investigation · Final report · May 10, 2002 · N48485 · Substantial damage
  > A loss of engine power due to a fractured rocker arm shaf. Contributing to the accident was the soft, furrowed field.
- [NTSB ANC02FA028](https://openairdocs.org/ntsb/ANC02FA028.md): Beech E18S · Juneau, AK · Accident · 1 fatal · Field investigation · Final report · Apr 11, 2002 · N686Q · Destroyed
  > The pilot's excessive loading of the airplane that precipitated an inadvertent stall/mush during the initial climb.
- [NTSB LAX02LA125](https://openairdocs.org/ntsb/LAX02LA125.md): Schweizer G-164B · Dixon, CA · Accident · No injuries · Limited investigation · Final report · Mar 7, 2002 · N48631 · Substantial damage
  > The pilot lost directional control due to the unsuitable landing area. A contributing factor was the muddy runway condition.
- [NTSB NYC02LA002](https://openairdocs.org/ntsb/NYC02LA002.md): Beech C-45H · Hudson, NH · Accident · Minor injuries · Limited investigation · Final report · Oct 2, 2001 · N8393H · Substantial damage
  > The pilot/owner's failure to properly identify the inoperative engine prior to feathering the wrong propeller, and his lack of familiarity with the required corrective procedures. A factor was the initial engine failure.
- [NTSB ANC01LA152](https://openairdocs.org/ntsb/ANC01LA152.md): de Havilland DHC-2 · Arctic Village, AK · Accident · No injuries · Limited investigation · Final report · Sep 16, 2001 · N5343G · Substantial damage
  > The pilot's selection of unsuitable terrain for takeoff. A factor in the accident was rock(s)/boulders in the area of takeoff.
- [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 ANC01LA121](https://openairdocs.org/ntsb/ANC01LA121.md): de Havilland DHC-2 · Nondalton, AK · Accident · No injuries · Limited investigation · Final report · Aug 21, 2001 · N10395 · Substantial damage
  > The pilot's inadequate compensation for gusty wind conditions. Factors associated with the accident were the pilot's inadequate weather evaluation, and wind gusts.
- [NTSB CHI01LA273](https://openairdocs.org/ntsb/CHI01LA273.md): Grumman G-164B · Hazelton, ND · Accident · 1 fatal · Limited investigation · Final report · Aug 11, 2001 · N48624 · Destroyed
  > the pilot's ostentatious display when he performed a low level manuever and stalled the airplane.
- [NTSB FTW01LA177](https://openairdocs.org/ntsb/FTW01LA177.md): Grumman-Schweizer G-164B · Bunkie, LA · Accident · Minor injuries · Limited investigation · Final report · Aug 9, 2001 · N542KG · Destroyed
  > The loss of engine power for undetermined reasons while maneuvering. A contributing factor was the lack of suitable terrain for the forced landing.
- [NTSB CHI01LA217](https://openairdocs.org/ntsb/CHI01LA217.md): Grumman G-164A · Mandan, ND · Accident · No injuries · Limited investigation · Final report · Jul 14, 2001 · N14AG · Substantial damage
  > the pilot failed to maintain clearance from the powerline. Additional factors were the thermal lift and the powerline.
- [NTSB CHI01LA164](https://openairdocs.org/ntsb/CHI01LA164.md): Boeing Stearman A-75 · Marissa, IL · Accident · No injuries · Limited investigation · Final report · Jun 8, 2001 · N4558N · Substantial damage
  > The pilot's manuever to avoid obstructions and his failure to abort takeoff. The pilot's failure to establish adequate climb, and the transmission wire are contributing factors.
- [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 CHI01LA134](https://openairdocs.org/ntsb/CHI01LA134.md): Air Tractor G-164A · Casselton, ND · Accident · No injuries · Limited investigation · Final report · May 16, 2001 · N970X · Substantial damage
  > The 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 FTW01FA117](https://openairdocs.org/ntsb/FTW01FA117.md): Convair BT-13A · Odessa, TX · Accident · 2 fatal · Field investigation · Final report · May 14, 2001 · N66791 · Destroyed
  > the pilot's failure to maintain the minimum required airspeed for flight, which resulted in a loss of control while performing a go-around. A contributing factor to the accident was the gusty tailwind condition.
- [NTSB ANC01TA048](https://openairdocs.org/ntsb/ANC01TA048.md): de Havilland DHC-2 · Anchorage, AK · Accident · No injuries · Final report · Apr 20, 2001 · N4793C · Substantial damage
  > A failure of the pilot to maintain adequate distance/clearance from a cement barricade while taxiing into a parking spot after landing. A factor was the presence of a barricade adjacent to the parking spot.
- [NTSB MIA01LA105](https://openairdocs.org/ntsb/MIA01LA105.md): Grumman G-164B · Dyer, TN · Accident · No injuries · Limited investigation · Final report · Mar 27, 2001 · N6552K · Substantial damage
  > The improper installation of the main landing gear tire (pinched tube) by company maintenance personnel resulting in a total loss of air pressure in-flight, loss of directional control on landing roll, and subsequent nose down.

Next page: https://openairdocs.org/ntsb.md?engine=52008&page=7

## 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=6

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