# NTSB investigations: Lycoming O-540-F1B5

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 2 of 2 · 73 cases

## Cases, newest first

- [NTSB GAA17CA151](https://openairdocs.org/ntsb/GAA17CA151.md): Robinson Helicopter R44 · Holtville, CA · Accident · No injuries · Data collection · Final report · Feb 14, 2017 · N4534G · Substantial damage
  > The pilot’s initiation of a left turn at a low altitude with low airspeed and a tailwind while operating near maximum gross weight, which resulted in the helicopter losing altitude, touching down on a dirt surface, and a subsequent dynamic rollover.
- [NTSB GAA17CA095](https://openairdocs.org/ntsb/GAA17CA095.md): Robinson Helicopter R44 · Separ, NM · Accident · No injuries · Data collection · Final report · Dec 15, 2016 · N835AK · Substantial damage
  > The pilot’s abrupt maneuver to avoid electrical wires during the approach, which resulted in a hard landing.
- [NTSB WPR16LA132](https://openairdocs.org/ntsb/WPR16LA132.md): Robinson Helicopter R44 · El Centro, CA · Accident · No injuries · Class 3 · Limited · Final report · Jun 28, 2016 · N8325X · Substantial damage
  > A loss of main rotor rpm and airframe vibration for reasons that could not be determined based on the available information, which resulted in a forced landing to sloping terrain and the helicopter rolling over.
- [NTSB ERA16FA143](https://openairdocs.org/ntsb/ERA16FA143.md): Robinson R44 · Canadensis, PA · Accident · 1 fatal · Field investigation · Final report · Mar 27, 2016 · N776JM · Destroyed
  > The pilot's loss of control due to spatial disorientation, which occurred after ascending in order to clear rising terrain and inadvertently entering the clouds.
- [NTSB CEN15CA348](https://openairdocs.org/ntsb/CEN15CA348.md): Robinson R44 · Kansasville, WI · Accident · Minor injuries · Data collection · Final report · Aug 7, 2015 · N20KD · Destroyed
  > The pilot's inability to see and avoid power lines that were low to the ground and a green color that blended with the background crops.
- [NTSB ERA14CA413](https://openairdocs.org/ntsb/ERA14CA413.md): Robinson Helicopter R44 · Hayesville, NC · Accident · No injuries · Data collection · Final report · Aug 17, 2014 · N752EC · Substantial damage
  > The pilot's failure to maintain control of the helicopter, and adequate clearance, which resulted in a collision with a hangar.
- [NTSB CEN14CA426](https://openairdocs.org/ntsb/CEN14CA426.md): Robinson Helicopter R44 · Lancaster, WI · Accident · No injuries · Data collection · Final report · Aug 13, 2014 · N8343P · Substantial damage
  > The pilot's inadequate monitoring of the environment and failure to maintain clearance from transmission wires during an aerial application flight.
- [NTSB CEN14CA403](https://openairdocs.org/ntsb/CEN14CA403.md): Robinson Helicopter R44 · Allen, NE · Accident · Minor injuries · Data collection · Final report · Jul 31, 2014 · N7194H · Substantial damage
  > The pilot did not ensure sufficient obstacle clearance for potential wind conditions, which resulted in his loss of control of the helicopter.
- [NTSB ERA14CA143](https://openairdocs.org/ntsb/ERA14CA143.md): Robinson Helicopter R44 · Orlando, FL · Accident · No injuries · Data collection · Final report · Feb 10, 2014 · N7040U · Substantial damage
  > The pilot's inadequate preflight inspection in which he failed to remove the tail rotor covers, which resulted in the failure of the tail rotor drive shaft during engine start.
- [NTSB CEN13LA448](https://openairdocs.org/ntsb/CEN13LA448.md): Robinson R44 · Capron, IL · Accident · Serious injuries · Limited investigation · Final report · Jul 28, 2013 · N9681R · Substantial damage
  > The pilot's failure to maintain main rotor speed while maneuvering at low altitude during an agricultural application flight, which resulted in an uncontrolled descent into terrain.
- [NTSB ERA13FA186](https://openairdocs.org/ntsb/ERA13FA186.md): Robinson R44 · Miami, FL · Accident · 2 fatal · Field investigation · Final report · Apr 3, 2013 · N3101H · Destroyed
  > The mechanic's failure to properly secure the pitch link hardware of one main rotor blade to the rotating swash plate, which resulted in the pitch link separating in flight and the pilot's subsequent loss of control. Contributing to the accident was the…
- [NTSB ERA12LA429](https://openairdocs.org/ntsb/ERA12LA429.md): Robinson Helicopter R44 · Tallahassee, FL · Accident · No injuries · Limited investigation · Final report · Jul 4, 2012 · N561CH · Substantial damage
  > The pilot’s failure to maintain awareness of the helicopter’s altitude while attempting to troubleshoot the clutch actuator warning light, which resulted in an inadvertent descent and impact with water. Contributing to the accident was the pilot's possible…
- [NTSB ERA12CA179](https://openairdocs.org/ntsb/ERA12CA179.md): Robinson Helicopter R44 · N. Charleston, SC · Accident · No injuries · Data collection · Final report · Feb 13, 2012 · N5511L · Substantial damage
  > The flight instructor’s failure to apply power during a practice autorotation in order to arrest a high rate of descent, which resulted in an in-flight collision with terrain.
- [NTSB CEN11CA627](https://openairdocs.org/ntsb/CEN11CA627.md): Robinson Helicopter R44 · Batesville, TX · Accident · No injuries · Data collection · Final report · Aug 26, 2011 · N99FJ · Substantial damage
  > The pilot’s inadequate preflight inspection that failed to ensure all tie-down clamps were removed prior to takeoff, which resulted in the helicopter’s dynamic rollover.
- [NTSB ANC10LA053](https://openairdocs.org/ntsb/ANC10LA053.md): Robinson Helicopter R44 · Unalaska, AK · Accident · 1 fatal · Limited investigation · Final report · Jun 20, 2010 · N333DV · Substantial damage
  > The pilot's inappropriate low altitude maneuvering, which resulted in a collision with terrain.
- [NTSB CEN10CA251](https://openairdocs.org/ntsb/CEN10CA251.md): Robinson Helicopter R44 · Baraboo, WI · Accident · No injuries · Data collection · Final report · May 15, 2010 · N570MD · Substantial damage
  > The pilot's failure to maintain clearance with crops while maneuvering during aerial application.
- [NTSB ERA10LA019](https://openairdocs.org/ntsb/ERA10LA019.md): Robinson R44 · La Belle, FL · Accident · Serious injuries · Limited investigation · Final report · Oct 15, 2009 · N3038W · Substantial damage
  > The loss of main rotor rpm due to the failure of one or more of the drive belts for undetermined reasons.
- [NTSB ERA09FA497](https://openairdocs.org/ntsb/ERA09FA497.md): Robinson R44 · Jackson, MS · Accident · 1 fatal · Field investigation · Final report · Sep 1, 2009 · N33PX · Substantial damage
  > The pilot's failure to maintain adequate main rotor rpm, for undetermined reasons.
- [NTSB WPR09CA339](https://openairdocs.org/ntsb/WPR09CA339.md): Robinson Helicopter R44 · Marysville, CA · Accident · No injuries · Data collection · Final report · Jul 13, 2009 · N244HP · Substantial damage
  > The pilot’s failure to maintain adequate clearance from the power line wires.
- [NTSB ANC08CA112](https://openairdocs.org/ntsb/ANC08CA112.md): Robinson R44 · Iliamna, AK · Accident · No injuries · Data collection · Final report · Aug 23, 2008 · N291VB · Substantial damage
  > The pilot's failure to see a wire cable prior to colliding with it. Factors contributing to the accident were the non-routine positioning of the wire cable, and the ground crew's failure to advise the pilot that the wire had been re-routed.
- [NTSB DFW08LA020](https://openairdocs.org/ntsb/DFW08LA020.md): Robinson R-44 · Catarina, TX · Accident · No injuries · Limited investigation · Final report · Oct 24, 2007 · N744RG · Substantial damage
  > The loss of control due to the pilot's failure to maintain clearance with trees while hovering. A contributing factor was the low altitude.
- [NTSB SEA07FA006](https://openairdocs.org/ntsb/SEA07FA006.md): Robinson R44 · Sumner, WA · Accident · 1 fatal · Field investigation · Final report · Oct 8, 2006 · N769RT · Substantial damage
  > The complete loss of engine power, for undetermined reasons, while on final approach, and the pilot's loss of control of the helicopter after the power loss. Factors include a lake below the final approach to the private landing pad.
- [NTSB LAX00LA086](https://openairdocs.org/ntsb/LAX00LA086.md): Robinson R44 · Palo Alto, CA · Accident · No injuries · Limited investigation · Final report · Feb 2, 2000 · N999EV · Substantial damage
  > The pilot's failure to use carburetor heat, resulting in a loss of engine power, and, his misjudged autorotation approach that resulted in a collision with the ground during the landing flare. Contributing to the accident was the conditions conducive to…

## 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 ('42353'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=42353&page=2

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