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

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 7 · 310 cases

## Latest cases

- [NTSB WPR24FA196](https://openairdocs.org/ntsb/WPR24FA196.md): Lockheed 12A · Chino, CA · Accident · 2 fatal · Class 3 · Field · Final report · Jun 15, 2024 · N93R · Substantial damage
  > The pilot’s exceedance of the airplane’s critical angle of attack during the initial climb, which resulted in an aerodynamic stall at an altitude insufficient for recovery. Contributing to the accident was the pilot’s failure to ensure that the airplane was…
- [NTSB WPR23LA120](https://openairdocs.org/ntsb/WPR23LA120.md): Grumman Acft ENG Cor-Schweizer G-164B · Vernalis, CA · Accident · Serious injuries · Class 4 · Limited · Final report · Mar 3, 2023 · N48492 · Substantial damage
  > The pilot’s failure to maintain clearance from a power line during a low-level aerial application flight.
- [NTSB WPR21LA349](https://openairdocs.org/ntsb/WPR21LA349.md): Beech D17S · San Diego / El Cajon, CA · Accident · No injuries · Class 4 · Limited · Final report · Sep 21, 2021 · N1196V · Substantial damage
  > The pilot’s failure to maintain directional control of the airplane during the landing roll with a crosswind, which resulted in a runway excursion and subsequent collision with runway signage.
- [NTSB WPR21LA125](https://openairdocs.org/ntsb/WPR21LA125.md): Phillip B Rolls Pitts 12-EH · Red Bluff, CA · Accident · No injuries · Class 4 · Limited · Final report · Mar 8, 2021 · N54LM · Substantial damage
  > The pilot's failure to maintain directional control during a landing, which resulted in a ground loop and subsequent nose over.
- [NTSB WPR20LA226](https://openairdocs.org/ntsb/WPR20LA226.md): Boeing B75 · Chino, CA · Accident · No injuries · Class 3 · Limited · Final report · Jul 5, 2020 · N61445 · Substantial damage
  > The pilot’s failure to maintain directional control during the landing roll.
- [NTSB WPR17LA100](https://openairdocs.org/ntsb/WPR17LA100.md): Grumman G164 · Madera, CA · Accident · No injuries · Limited investigation · Final report · May 7, 2017 · N8712H · Destroyed
  > The pilot’s loss of directional control during takeoff with a quartering tailwind, which resulted in a runway excursion and separation of the right landing gear.
- [NTSB GAA16CA249](https://openairdocs.org/ntsb/GAA16CA249.md): Boeing B75 · El Cajon, CA · Accident · No injuries · Data collection · Final report · May 20, 2016 · N61445 · Substantial damage
  > The pilot's failure to maintain directional control during the landing roll in gusty crosswind conditions, which resulted in a runway excursion and nose over.
- [NTSB WPR14CA365](https://openairdocs.org/ntsb/WPR14CA365.md): Ealand Charles Lionheart · Santa Maria, CA · Accident · Minor injuries · Data collection · Final report · Sep 5, 2014 · N15TE · Substantial damage
  > The pilot's inadequate landing flare and subsequent loss of directional control during the landing roll.
- [NTSB WPR14CA293](https://openairdocs.org/ntsb/WPR14CA293.md): Grumman Acft ENG Cor-Schweizer G 164B · Marysville, CA · Accident · No injuries · Data collection · Final report · Jul 14, 2014 · N48475 · Substantial damage
  > The pilot's failure to adequately monitor the environmental conditions to assure the aircraft performance would afford an uneventful takeoff with the loading conditions. Contributing to the accident were the pilot's inability to jettison the load due to the…
- [NTSB WPR14FA182](https://openairdocs.org/ntsb/WPR14FA182.md): Boeing E75 · Fairfield, CA · Accident · 1 fatal · Field investigation · Final report · May 4, 2014 · N68828 · Destroyed
  > The pilot's failure to maintain clearance from the runway during a low-level aerobatic maneuver due to his impairment by an over-the-counter antihistamine. Contributing to the severity of the pilot's injuries were the pilot's lack of fire protective clothing,…
- [NTSB WPR14LA130](https://openairdocs.org/ntsb/WPR14LA130.md): Grumman G164 - A · Caruthers, CA · Accident · No injuries · Limited investigation · Final report · Feb 28, 2014 · N72ES · Substantial damage
  > An undetected fatigue crack in the landing gear leg, which initiated at an electrical arc-induced damage site of undetermined origin and resulted in landing gear failure. Contributing to the severity of damage to the airplane was the close proximity of an…
- [NTSB WPR13CA031](https://openairdocs.org/ntsb/WPR13CA031.md): Beech D17S · Van Nuys, CA · Accident · No injuries · Data collection · Final report · Nov 3, 2012 · N4417S · 2 aircraft · Minor damage
  > The pilot of another airplane did not maintain a proper visual lookout during taxi, which resulted in an on-ground collision.
- [NTSB WPR12LA201](https://openairdocs.org/ntsb/WPR12LA201.md): Beech 3NM · Pope Valley, CA · Accident · Minor injuries · Limited investigation · Final report · May 12, 2012 · N9540 · Substantial damage
  > A loss of power in one engine during takeoff, which resulted in a forced landing in a vineyard. The reason for the loss of engine power could not be determined from the available evidence.
- [NTSB WPR11LA260](https://openairdocs.org/ntsb/WPR11LA260.md): Grumman G-164A · Buttonwillow, CA · Accident · No injuries · Limited investigation · Final report · Jun 14, 2011 · N5286 · Substantial damage
  > The pilot's misjudgment of the landing approach and subsequent long landing and overrun of the runway resulting in a collision with ground obstacles. Contributing to the accident was the pilot's likely fatigue and dehydration.
- [NTSB WPR11CA014](https://openairdocs.org/ntsb/WPR11CA014.md): Boeing A75N1(PT17) · Palm Springs, CA · Accident · No injuries · Data collection · Final report · Oct 12, 2010 · N66940 · Substantial damage
  > The pilot's failure to maintain directional control during landing, resulting in a ground loop.
- [NTSB WPR10CA289](https://openairdocs.org/ntsb/WPR10CA289.md): Grumman Acft ENG Cor-Schweizer G-164B · Courtland, CA · Accident · Serious injuries · Data collection · Final report · Jun 13, 2010 · N6726Q · Substantial damage
  > The pilot's failure to maintain clearance from terrain during low-altitude maneuvers.
- [NTSB WPR09CA393](https://openairdocs.org/ntsb/WPR09CA393.md): Grumman Acft ENG Cor-Schweizer G-164B · Westley, CA · Accident · No injuries · Data collection · Final report · Aug 13, 2009 · N6697Q · Substantial damage
  > The pilot’s inadequate preflight planning and preparation, and his decision to operate the airplane well in excess of its maximum gross weight.
- [NTSB WPR09LA247](https://openairdocs.org/ntsb/WPR09LA247.md): Boeing A75N1 · Joshua Tree, CA · Accident · No injuries · Limited investigation · Final report · May 19, 2009 · N450JN · Substantial damage
  > An in-flight fire in the engine compartment for undetermined reasons.
- [NTSB LAX08CA223](https://openairdocs.org/ntsb/LAX08CA223.md): Grumman Acft Eng G-164B · Patterson, CA · Accident · Minor injuries · Data collection · Final report · Jul 10, 2008 · N6792Q · Substantial damage
  > The pilot's failure to maintain clearance from obstacles while maneuvering.
- [NTSB LAX07LA079](https://openairdocs.org/ntsb/LAX07LA079.md): Waco UPF-7 · Palos Verdes, CA · Accident · Minor injuries · Limited investigation · Final report · Feb 3, 2007 · N30140 · 2 aircraft · Substantial damage
  > the failure of both pilots to maintain adequate visual lookout and clearance from each other while maneuvering in close proximity.
- [NTSB LAX06LA169](https://openairdocs.org/ntsb/LAX06LA169.md): Grumman G-164B · Tracy, CA · Accident · No injuries · Limited investigation · Final report · May 15, 2006 · N8981H · Substantial damage
  > loss of power for undetermined reasons.
- [NTSB LAX05LA152](https://openairdocs.org/ntsb/LAX05LA152.md): Grumman G-164A · Yuba City, CA · Accident · No injuries · Limited investigation · Final report · Apr 30, 2005 · N5304 · Substantial damage
  > a partial loss of engine power due to multiple cracks in the number 7 cylinder. The reasons for the cracks were not determined
- [NTSB LAX04FA330](https://openairdocs.org/ntsb/LAX04FA330.md): Bushmaster 2000 · Fullerton, CA · Accident · Serious injuries · Field investigation · Final report · Sep 25, 2004 · N750RW · Destroyed
  > the inadequate preflight inspection by the pilot-in-command, where the pilot failed to remove the makeshift gust lock attached to the rudder and left elevator of the airplane. As a result, the airplane veered off the runway surface during the takeoff roll,…
- [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 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 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 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 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 LAX00LA345](https://openairdocs.org/ntsb/LAX00LA345.md): Grumman-Schweizer G-164B · Tracy, CA · Accident · No injuries · Limited investigation · Final report · Sep 22, 2000 · N8981H · Substantial damage
  > Loss of engine power due to failure and separation of the number one connecting rod.
- [NTSB LAX00LA246](https://openairdocs.org/ntsb/LAX00LA246.md): Grumman G-164B · King City, CA · Accident · No injuries · Limited investigation · Final report · Jul 3, 2000 · N48456 · Destroyed
  > The loss of engine power for undetermined reasons.
- [NTSB LAX98LA015](https://openairdocs.org/ntsb/LAX98LA015.md): Beech D17S · Chino, CA · Accident · Minor injuries · Limited investigation · Final report · Oct 20, 1997 · N67736 · Substantial damage
  > fuel starvation resulting from the pilot's inadequate in-flight planning and improper fuel management. Contributing factors were the nighttime conditions and the rough/uneven terrain.
- [NTSB LAX97LA201](https://openairdocs.org/ntsb/LAX97LA201.md): Boeing Stearman A75N1 · Lemoore, CA · Accident · No injuries · Limited investigation · Final report · Jun 7, 1997 · N450MF · Substantial damage
  > failure of the pilot to maintain directional control of the airplane during the landing, which resulted in a ground swerve and subsequent overload failure of the main landing gear. Related factors were a left crosswind and partial loss of the right wheel…
- [NTSB LAX97LA130](https://openairdocs.org/ntsb/LAX97LA130.md): Boeing Stearman B75N1 · Victorville, CA · Accident · No injuries · Limited investigation · Final report · Mar 21, 1997 · N68800 · Substantial damage
  > failure of the pilot to maintain directional control of the aircraft during the landing rollout.
- [NTSB LAX96LA124](https://openairdocs.org/ntsb/LAX96LA124.md): Schweizer G-164B · Tracy, CA · Accident · No injuries · Limited investigation · Final report · Feb 21, 1996 · N6674Q · Substantial damage
  > overheating and failure of the engine's master rod and master rod bearing due to oil starvation. A factor relating to the accident was: the lack of suitable terrain for an emergency landing.
- [NTSB LAX96LA101](https://openairdocs.org/ntsb/LAX96LA101.md): Boeing A75 · Barstow, CA · Accident · No injuries · Limited investigation · Final report · Jan 27, 1996 · N1359N · Substantial damage
  > a loss of engine power for an undetermined reason(s).
- [NTSB LAX95LA350](https://openairdocs.org/ntsb/LAX95LA350.md): Boeing B75-A75N1 · Van Nuys, CA · Accident · No injuries · Limited investigation · Final report · Aug 1, 1995 · N54284 · Substantial damage
  > the pilot's failure to maintain directional control during landing rollout. Factors which contributed to the loss of control were: the pilot's total lack of experience landing the conventional gear airplane in a crosswind condition, and the crosswind.
- [NTSB LAX95LA127](https://openairdocs.org/ntsb/LAX95LA127.md): Boeing B75N1 · Gaviota, CA · Accident · No injuries · Limited investigation · Final report · Mar 5, 1995 · N450SR · Substantial damage
  > inadequate maintenance and service of the aircraft's carburetor heat system, and the pilot's intentional flight into adverse weather conditions. The lack of a suitable area for the emergency landing was a factor.
- [NTSB LAX94LA313](https://openairdocs.org/ntsb/LAX94LA313.md): Schweizer G-164-A · Laton, CA · Accident · No injuries · Limited investigation · Final report · Aug 11, 1994 · N699Y · Substantial damage
  > failure of the No.7 cylinder for an unspecified reason.
- [NTSB LAX94LA204](https://openairdocs.org/ntsb/LAX94LA204.md): Beech UC-45J · Acampo, CA · Accident · No injuries · Limited investigation · Final report · Apr 24, 1994 · N35095 · Substantial damage
  > The pilot's failure to use carburetor heat during the extended power-off descent. The existing carburetor icing conditions, the pilot's diverted attention, and the power lines were factors in this accident.
- [NTSB LAX94LA155](https://openairdocs.org/ntsb/LAX94LA155.md): Grumman G-164B · Chico, CA · Accident · No injuries · Limited investigation · Final report · Mar 4, 1994 · N6528K · Substantial damage
  > the failure of the pilot to obtain/maintain sufficient flying speed during a downwind takeoff and climb, compounded by his reluctance to use full available takeoff power.
- [NTSB LAX93LA238](https://openairdocs.org/ntsb/LAX93LA238.md): Boeing B75N1 · Pacoima, CA · Accident · No injuries · Limited investigation · Final report · Jun 1, 1993 · N218DL · Substantial damage
  > A failure of the pilot to adequately compensate for cross wind conditions and a failure to maintain directional control of the airplane.
- [NTSB LAX93LA226](https://openairdocs.org/ntsb/LAX93LA226.md): Grumman G-164B · Madera, CA · Accident · No injuries · Limited investigation · Final report · May 26, 1993 · N48632 · Destroyed
  > The pilot's failure to maintain directional control. A factor related to this accident was the left quartering tailwind.
- [NTSB LAX93LA158](https://openairdocs.org/ntsb/LAX93LA158.md): Boeing A75L3 · Carlsbad, CA · Accident · Serious injuries · Limited investigation · Final report · Mar 22, 1993 · N58969 · Substantial damage
  > The pilot's inadequate preflight preparation in that he failed to refuel the aircraft prior to departure.
- [NTSB LAX92LA339](https://openairdocs.org/ntsb/LAX92LA339.md): Beech D17S · Bishop, CA · Accident · No injuries · Limited investigation · Final report · Aug 8, 1992 · N92SL · Substantial damage
  > The pilot's failure to maintain directional control; improper use of the rudder and excessive braking. Contributing to this accident was the pilot's lack of experience in the accident airplane make and model.
- [NTSB LAX92LA259](https://openairdocs.org/ntsb/LAX92LA259.md): Grumman G-164B · Robbins, CA · Accident · No injuries · Limited investigation · Final report · Jun 23, 1992 · N48658 · Substantial damage
  > The failure of the pilot to maintain an adequate wing tip clearance between the aircraft and a dirt bank paralleling the airstrip.
- [NTSB LAX92LA028](https://openairdocs.org/ntsb/LAX92LA028.md): Grumman G-164 · Pauma, CA · Accident · No injuries · Limited investigation · Final report · Oct 28, 1991 · N664U · Substantial damage
  > Fuel starvation due to a restricted fuel tank vent line. Contributing to the accident was inadequate maintenance.
- [NTSB LAX91LA299](https://openairdocs.org/ntsb/LAX91LA299.md): Grumman G-164B · Crows Landing, CA · Accident · No injuries · Limited investigation · Final report · Jul 9, 1991 · N6628Q · Destroyed
  > The pilot Landing his airplane erroneously on the wrong Landing surface. Factors in this accident were: sunglare and its interference with the pilot's vision and the soft terrain.
- [NTSB LAX91LA283](https://openairdocs.org/ntsb/LAX91LA283.md): Boeing E75 · San Luis Obispo, CA · Accident · No injuries · Limited investigation · Final report · Jun 30, 1991 · N68809 · Substantial damage
  > That the pilot failed to properly compensate of the existing quartering tailwind, improperly using the flight controls and brakes.
- [NTSB LAX91LA228](https://openairdocs.org/ntsb/LAX91LA228.md): Beech C-45H · Lake Elsinore, CA · Accident · No injuries · Limited investigation · Final report · May 29, 1991 · N9903Z · Substantial damage
  > Fuel starvation due to an improper modification of the fuel system and the pilot's failure to ensure that the aircraft was airworthy prior to flight.
- [NTSB LAX91LA214](https://openairdocs.org/ntsb/LAX91LA214.md): Grumman G164B · Yuba City, CA · Accident · Minor injuries · Limited investigation · Final report · May 14, 1991 · N48658 · Substantial damage
  > Fatigue in the propeller blade which led to its ultimate failure. Factors relating to this accident were the soft terrain conditions on which the airplane landed and a berm across the airplane's ground path.

Next page: https://openairdocs.org/ntsb.md?engine=52008&state=CA&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" = 'CA' 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=CA

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