# NTSB investigations: Allison 250-C20 series, 2007

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 CHI08CA021](https://openairdocs.org/ntsb/CHI08CA021.md): Bell 206B-III · Medora, ND · Accident · Minor injuries · Data collection · Final report · Oct 18, 2007 · N51698 · Substantial damage
  > The pilot failed to maintain clearance from the fence while maneuvering at a low altitude, which resuled in the helicopter rolling over and impacting the terrain. A factor associated with the accident was the fence.
- [NTSB SEA07CA256](https://openairdocs.org/ntsb/SEA07CA256.md): Rogerson Hiller RH-1100 · Stanwood, WA · Accident · Minor injuries · Data collection · Final report · Sep 11, 2007 · N6014U · Destroyed
  > The pilot's failure to execute a go-around and his failure to reduce his groundspeed to zero prior to touching down on the rough/uneven terrain. Factors include the momentary restriction of a flight control, rough/uneven terrain, and a tailwind.
- [NTSB LAX07LA270](https://openairdocs.org/ntsb/LAX07LA270.md): Hughes 369D · Ellensburg, WA · Accident · 1 fatal · Limited investigation · Final report · Sep 8, 2007 · N31HM · No damage
  > The passenger's inadequate visual lookout and failure to maintain clearance from the rotating main rotor disc while the helicopter was hovering. An uphill terrain condition was a factor
- [NTSB NYC07LA188](https://openairdocs.org/ntsb/NYC07LA188.md): Bell 206B · Warrenton, VA · Accident · No injuries · Limited investigation · Final report · Aug 7, 2007 · N3202D · Substantial damage
  > The flight instructor's failure to maintain adequate rotor rpm during touchdown.
- [NTSB DEN07LA132](https://openairdocs.org/ntsb/DEN07LA132.md): Bell 206B · Broomfield, CO · Accident · Minor injuries · Limited investigation · Final report · Aug 1, 2007 · N568TD · Substantial damage
  > The pilot's failure to maintain control of the helicopter, resulting in an inadvertent dynamic rollover.
- [NTSB CHI07CA244](https://openairdocs.org/ntsb/CHI07CA244.md): Bell 206B · Columbia, MO · Accident · Minor injuries · Data collection · Final report · Jul 31, 2007 · N9ZV · Substantial damage
  > The pilot's failure to maintain control of the helicopter, which resulted in impact with terrain during takeoff. A factor in the accident was the tall grass.
- [NTSB SEA07CA200](https://openairdocs.org/ntsb/SEA07CA200.md): Bell 206B II · Sheep Mountain, MT · Accident · Minor injuries · Data collection · Final report · Jul 16, 2007 · N164JS · Substantial damage
  > The external load net, attached directly to the cargo hook without the use of a long line, oscillated and made contact with the tail rotor system while maneuvering.
- [NTSB CHI07LA193](https://openairdocs.org/ntsb/CHI07LA193.md): Hughes 369D · Comfrey, MN · Accident · No injuries · Limited investigation · Final report · Jul 5, 2007 · N500NC · Substantial damage
  > The loss of engine power due to the loose pressure line during aerial application maneuvers which resulted in a hard forced landing.
- [NTSB ATL07GA087](https://openairdocs.org/ntsb/ATL07GA087.md): Bell 206B · Cedartown, GA · Accident · Serious injuries · Final report · Jun 5, 2007 · N912SP · Substantial damage
  > The pilot's failure to maintain control of the helicopter while maneuvering. Contributing to the accident were strong gusty winds.
- [NTSB SEA07CA139](https://openairdocs.org/ntsb/SEA07CA139.md): Hughes 369D · Torrance, CA · Accident · No injuries · Data collection · Final report · May 29, 2007 · N935M · Substantial damage
  > The pilot's loss of helicopter control while maneuvering at low altitude, which resulted in a hard landing. The wind gusts were a contributing factor.
- [NTSB NYC07LA149](https://openairdocs.org/ntsb/NYC07LA149.md): Messerschmitt BO-105 · Isla de Vieques, PR · Accident · No injuries · Limited investigation · Final report · May 28, 2007 · N911GB · Substantial damage
  > The mechanic's failure to secure the engine governor locking hardware, which resulted in the right engine losing power.
- [NTSB LAX07CA177](https://openairdocs.org/ntsb/LAX07CA177.md): MD Helicopters 500-E · Yerington, NV · Accident · Minor injuries · Data collection · Final report · May 27, 2007 · N526BH · Substantial damage
  > The failure of the student and instructor to maintain an adequate main rotor rpm, and the instructor’s inadequate in-flight supervision while conducting a low-level simulated emergency procedure, which resulted in a hard landing.
- [NTSB MIA07FA098](https://openairdocs.org/ntsb/MIA07FA098.md): Hughes 369A · Moulton, AL · Accident · 1 fatal · Field investigation · Final report · May 13, 2007 · N468WE · Destroyed
  > The separation of a main rotor blade from its tension torsion bar for an undetermined reason.
- [NTSB DFW07LA109](https://openairdocs.org/ntsb/DFW07LA109.md): Bell 206B · E. Cameron 219 · Accident · Minor injuries · Limited investigation · Final report · May 11, 2007 · N3RL · Substantial damage
  > The pilot's failure to establish a climb and maintian directional control of the helicopter while departing the offshore platform.
- [NTSB SEA07LA108](https://openairdocs.org/ntsb/SEA07LA108.md): Hughes 369D · Kahuku, HI · Accident · Minor injuries · Limited investigation · Final report · Apr 20, 2007 · N911FT · Substantial damage
  > Fatigue cracking of the oil line from the engine gearbox to the oil pressure gauge, which resulted in loss of engine lubricating oil, leading to seizure of the power turbine.
- [NTSB NYC07CA084](https://openairdocs.org/ntsb/NYC07CA084.md): Bell 206B · Lewes, DE · Accident · Minor injuries · Data collection · Final report · Mar 23, 2007 · N828BA · Substantial damage
  > The pilot's inadequate visual lookout, which resulted in an in flight collision with utility wires during takeoff, and a subsequent impact with terrain.
- [NTSB SEA07CA069](https://openairdocs.org/ntsb/SEA07CA069.md): Bell 206 B3 · Custer, MT · Accident · No injuries · Data collection · Final report · Mar 5, 2007 · N150SP · Substantial damage
  > The pilot’s failure to maintain clearance between the tail rotor of his helicopter and a piece of farm equipment during the landing sequence.
- [NTSB ANC07LA022](https://openairdocs.org/ntsb/ANC07LA022.md): Hughes 369D · Gustavus, AK · Accident · No injuries · Limited investigation · Final report · Mar 3, 2007 · N5134V · Substantial damage
  > The inadequate clearance from a tranquilized moose while hovering in ground effect, and the operator's inadequate procedures for such operations, which resulted in an in-flight collision with the moose. Factors associated with the accident were the moose, a…
- [NTSB LAX07CA072](https://openairdocs.org/ntsb/LAX07CA072.md): Bell Helicopter 206BIII · Springville, CA · Accident · Minor injuries · Data collection · Final report · Jan 19, 2007 · N185BC · Substantial damage
  > The pilot's failure to maintain terrain/obstacle clearance while maneuvering. Factors were the mountainous terrain, trees, and low-altitude flight maneuvers.

## 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 year(c."eventDate") = 2007
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('03020'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=03020&year=2007

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