# NTSB investigations: Allison 250 SER 400HP, 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.

## Latest cases

- [NTSB WPR22LA221](https://openairdocs.org/ntsb/WPR22LA221.md): Bell 206B · Stockton, CA · Accident · No injuries · Class 3 · Limited · Final report · Jun 17, 2022 · N90326 · Substantial damage
  > Tail rotor blade impact with an unidentified object, which resulted in the loss of control and subsequent rollover of the helicopter.
- [NTSB GAA16CA408](https://openairdocs.org/ntsb/GAA16CA408.md): Bell Helicopter Textron 206 · Modesto, CA · Accident · No injuries · Data collection · Final report · Jul 30, 2016 · N206LW · Substantial damage
  > The pilot's failure to maintain pitch control during an autorotation, which resulted in abnormal ground contact and main rotor contact with the tail boom. Contributing to the accident was the low fuel level which resulted in fuel starvation and a loss of…
- [NTSB GAA16CA165](https://openairdocs.org/ntsb/GAA16CA165.md): Bell 206B · Hanford, CA · Accident · Minor injuries · Data collection · Final report · Mar 26, 2016 · N52Q · Substantial damage
  > The pilot's decision to release the collective while flying at 10 feet above ground level, resulting in the rapid helicopter descent and impact with terrain.
- [NTSB WPR12LA022](https://openairdocs.org/ntsb/WPR12LA022.md): Mcdonnell Douglas 500D · Colusa, CA · Accident · Minor injuries · Limited investigation · Final report · Oct 27, 2011 · N61PJ · Substantial damage
  > A total loss of engine power while maneuvering at low altitude for reasons that could not be determined because postaccident examinations did not reveal any anomalies that would have precluded normal operation. Contributing to the accident severity was the…
- [NTSB WPR11TA274](https://openairdocs.org/ntsb/WPR11TA274.md): Bell 206B · Franklin, CA · Accident · No injuries · Final report · Jun 21, 2011 · N38EA · Substantial damage
  > The student pilot's failure to maintain rotor rpm during the practice autorotation.
- [NTSB WPR09LA144](https://openairdocs.org/ntsb/WPR09LA144.md): MD Helicopter 369D · Trona, CA · Accident · Minor injuries · Limited investigation · Final report · Mar 7, 2009 · N501EF · Substantial damage
  > The pilot's failure to maintain control while landing in a high density altitude environment due to a loss of tail rotor effectiveness.
- [NTSB SEA07CA258](https://openairdocs.org/ntsb/SEA07CA258.md): Bell 206-B2 · Rosamond, CA · Accident · Minor injuries · Data collection · Final report · Sep 11, 2007 · N205LT · Substantial damage
  > The pilot's inadequate compensation for gusting variable winds encountered after landing. Factors include gusting, suddenly shifting winds, and a hangar near the spot where the helicopter had landed.
- [NTSB LAX04LA281](https://openairdocs.org/ntsb/LAX04LA281.md): Bell 206B · Little Valley, CA · Accident · Serious injuries · Limited investigation · Final report · Jul 26, 2004 · N549W · Destroyed
  > the pilot's failure to maintain an adequate clearance from objects and terrain while maneuvering at low altitude. Factors in the accident were the high, rising terrain, and the high density altitude.
- [NTSB LAX03CA279](https://openairdocs.org/ntsb/LAX03CA279.md): Bell 206B · Long Beach, CA · Accident · No injuries · Data collection · Final report · Sep 6, 2003 · N59506 · Substantial damage
  > the pilot's inadequate remedial action in response to a loss of tail rotor effectiveness.
- [NTSB LAX01LA243](https://openairdocs.org/ntsb/LAX01LA243.md): Bell 206B · San Francisco, CA · Accident · No injuries · Limited investigation · Final report · Jul 12, 2001 · N474SF · Substantial damage
  > The failure of the accessory gearbox 2 1/2 bearing in fatigue resulting in the complete loss of engine power and a subsequent forced landing. The pilot's failure to maintain directional control during the autorotational flare maneuver is also causal. The…
- [NTSB LAX99LA293](https://openairdocs.org/ntsb/LAX99LA293.md): Bell 206B · Delhi, CA · Accident · No injuries · Limited investigation · Final report · Sep 1, 1999 · N59551 · Substantial damage
  > The loss of engine power due to the pilot's inadequate preflight, which failed to detect water contamination of the fuel system. The operator's inadequate maintenance of the loose fitting fuel cap and the deformed filler opening, which allowed water to leak…
- [NTSB LAX97LA317](https://openairdocs.org/ntsb/LAX97LA317.md): Bell 206B · Napa, CA · Accident · Minor injuries · Limited investigation · Final report · Sep 8, 1997 · N770GG · Substantial damage
  > Failure of the pilot to perform an adequate preflight, which resulted in him failing to notice and release the tie down chains.
- [NTSB LAX96LA346](https://openairdocs.org/ntsb/LAX96LA346.md): Bell 206B · Fillmore, CA · Accident · No injuries · Limited investigation · Final report · Sep 30, 1996 · N59576 · Substantial damage
  > the flight instructor's inadequate supervision and delay in taking remedial action to stop the aircraft's lateral movement, which resulted in a dynamic rollover after touchdown.
- [NTSB LAX96FA076](https://openairdocs.org/ntsb/LAX96FA076.md): Hughes 369D · Feather Falls, CA · Accident · 1 fatal · Field investigation · Final report · Dec 20, 1995 · N8395F · Destroyed
  > the pilot's failure to jettison his external load after it came in contact with trees and terrain. The pilot's failure to maintain altitude/clearance above trees and hilly terrain was a related factor.
- [NTSB LAX95LA052](https://openairdocs.org/ntsb/LAX95LA052.md): Bell 206B · Julian, CA · Accident · No injuries · Limited investigation · Final report · Dec 15, 1994 · N37AJ · Substantial damage
  > the failure of the pilot to maintain a proper alignment during hover in a mountainous area.
- [NTSB LAX93LA258](https://openairdocs.org/ntsb/LAX93LA258.md): Bell 206B3 · Stoneyford, CA · Accident · No injuries · Limited investigation · Final report · Jun 17, 1993 · N38EA · Substantial damage
  > the pilot's inadequate compensation for the existing wind conditions during a hover operation. A factor in the accident was the high density altitude and the gusting, variable wind conditions.
- [NTSB LAX90TL#03](https://openairdocs.org/ntsb/LAX90TL%2303.md): Bell 206B · La Verne, CA · Accident · Minor injuries · Class 3 · Final report · May 3, 1990 · N59560 · Substantial damage
- [NTSB LAX87LA179](https://openairdocs.org/ntsb/LAX87LA179.md): Bell 206B-II · Yucaipa, CA · Accident · Minor injuries · Limited investigation · Final report · Apr 16, 1987 · N76EF · Destroyed
  > A Bell 206B went out of control and crashed while lndg at a 5,720 ft high helipad. The plt indicated that he terminated the aprch at a 8-10 ft hover and began to spin to the right with full left pedal applied. After 1 1/2 to 2 turns the plt atmptd to fly out…
- [NTSB LAX85FA101](https://openairdocs.org/ntsb/LAX85FA101.md): Bell 206B · Trimmer, CA · Accident · Minor injuries · Field investigation · Final report · Jan 8, 1985 · N59549 · Substantial damage
  > The plt stated the helicopter lost pwr during cruise when he attempted to add pwr to climb. He stated that N2 decreased along with the activation of visual and audio engine out warnings. An autorotation was performed to a road, however, the helicopter slid…
- [NTSB LAX84LA488](https://openairdocs.org/ntsb/LAX84LA488.md): Bell 206B · Paso Robles, CA · Accident · Serious injuries · Limited investigation · Final report · Sep 20, 1984 · N2246W · Destroyed
  > Plt stated that after receiving a special VFR clearence he took off to spray a nearby field. He continued to state that he 'made a couple of circuits over the field, observed the telephone wires and began spraying. After performing 2 or 3 passes I hit some…
- [NTSB LAX82DUM05](https://openairdocs.org/ntsb/LAX82DUM05.md): Hughes 369 · Winterhaven, CA · Accident · Minor injuries · Closed · Dec 4, 1981 · N58184 · Destroyed
- [NTSB LAX81DVA27](https://openairdocs.org/ntsb/LAX81DVA27.md): Hughes 369D · Madera, CA · Accident · No injuries · Closed · Mar 9, 1981 · N8681F · Substantial damage
- [NTSB LAX80DVA44](https://openairdocs.org/ntsb/LAX80DVA44.md): Bell 206B · Firebaugh, CA · Accident · No injuries · Closed · May 31, 1980 · N59543 · Substantial damage
- [NTSB LAX80FVG36](https://openairdocs.org/ntsb/LAX80FVG36.md): Hughes 369HS · Georgetown, CA · Accident · No injuries · Closed · Apr 29, 1980 · N8316F · Destroyed
- [NTSB LAX80FA036](https://openairdocs.org/ntsb/LAX80FA036.md): Hughes 369D · June Lakes, CA · Case · Closed · Jan 20, 1980 · N8354F
- [NTSB LAX79FVA11](https://openairdocs.org/ntsb/LAX79FVA11.md): Bell 206 · Long Beach, CA · Accident · Minor injuries · Closed · Apr 8, 1979 · N4790R · Substantial damage
- [NTSB OAK79FVD01](https://openairdocs.org/ntsb/OAK79FVD01.md): Hughes 500D · Garberville, CA · Accident · Serious injuries · Closed · Oct 19, 1978 · N58183 · Destroyed
- [NTSB LAX78FUM34](https://openairdocs.org/ntsb/LAX78FUM34.md): Bell 206B · Holtville, CA · Accident · No injuries · Closed · Aug 18, 1978 · N16733 · Substantial damage
- [NTSB OAK77FA038](https://openairdocs.org/ntsb/OAK77FA038.md): Hughes 369HS · Mt Darwin, CA · Accident · Minor injuries · Closed · Jul 4, 1977 · N9167F · Substantial damage
- [NTSB OAK76AP057](https://openairdocs.org/ntsb/OAK76AP057.md): Bell 206B · Bishop, CA · Accident · 2 fatal · Closed · Jun 22, 1976 · N7941S · Destroyed
- [NTSB OAK76FVG27](https://openairdocs.org/ntsb/OAK76FVG27.md): Bell 206B · Alder Springs, CA · Accident · No injuries · Closed · Oct 4, 1975 · N59549 · Substantial damage
- [NTSB LAX76AL015](https://openairdocs.org/ntsb/LAX76AL015.md): Bell 206B · Van Nuys, CA · Accident · Minor injuries · Closed · Aug 26, 1975 · N59560 · Substantial damage
- [NTSB OAK70F0003](https://openairdocs.org/ntsb/OAK70F0003.md): Hiller FH1100 · Lincoln, CA · Accident · Minor injuries · Closed · Apr 22, 1969 · N436F · 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" = '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 ('03013', '03012'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=03013&state=CA

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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.