# NTSB investigations: Lycoming IO-540-AE1A5

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 3 of 4 · 160 cases

## Cases, newest first

- [NTSB GAA17CA070](https://openairdocs.org/ntsb/GAA17CA070.md): Robinson Helicopter R44 · Stone Lake, WI · Accident · Minor injuries · Data collection · Final report · Nov 12, 2016 · N744JS · Substantial damage
  > The pilot’s failure to maintain lateral control while in a hover and the helicopter’s subsequent impact with a tree.
- [NTSB WPR16LA165](https://openairdocs.org/ntsb/WPR16LA165.md): Robinson Helicopter R44 II · Gunnison, UT · Accident · No injuries · Limited investigation · Final report · Aug 12, 2016 · N247DB · Substantial damage
  > A total loss of engine power for reasons that could not be determined based on the available evidence.
- [NTSB GAA16CA297](https://openairdocs.org/ntsb/GAA16CA297.md): Robinson Helicopter R44 · Chireno, TX · Accident · No injuries · Data collection · Final report · Jun 7, 2016 · N41407 · Substantial damage
  > The student pilot's selection of unsuitable terrain for landing, which resulted in the helicopter rolling over during landing, and substantial damage to the tail boom.
- [NTSB CEN16WA149](https://openairdocs.org/ntsb/CEN16WA149.md): Robinson Helicopter R44 II · Atemajac de Brizuela, Mexico · Accident · Serious injuries · Foreign investigation · Apr 2, 2016 · N565AC · Destroyed
  > On April 2, 2015, about 2120 universal coordinated time, a Robinson Helicopter Company R44 II helicopter, N565AC, impacted terrain near Atemajac de Brizuela, Mexico. The pilot and two passengers were uninjured and one passenger sustained a serious injury. The…
- [NTSB GAA16CA160](https://openairdocs.org/ntsb/GAA16CA160.md): Robinson R44 · Oak Island, NC · Accident · Minor injuries · Data collection · Final report · Mar 23, 2016 · N843JB · Substantial damage
  > The student pilot's failure to maintain a stabilized hover, resulting in a loss of control and an impact with terrain.
- [NTSB ANC16IA013](https://openairdocs.org/ntsb/ANC16IA013.md): Robinson Helicopter R44 II · Anchorage, AK · Incident · No injuries · Incident investigation · Final report · Jan 7, 2016 · N395CE · No damage
  > The overhaul facility's improper and excessive use of an approved lubricant during overhaul of the fuel injection servo, which resulted in a disruption of fuel flow and a total loss of engine power.
- [NTSB ANC16LA010](https://openairdocs.org/ntsb/ANC16LA010.md): Robinson Helicopter R44 II · Valdez, AK · Accident · No injuries · Limited investigation · Final report · Dec 16, 2015 · N255VS · Substantial damage
  > The overhaul facility’s improper and excessive use of an approved lubricant during overhaul of the fuel injection servo, which resulted in a disruption of fuel flow and a total loss of engine power.
- [NTSB CEN16LA039](https://openairdocs.org/ntsb/CEN16LA039.md): Robinson Helicopter R44 II · Alpine, TX · Accident · Serious injuries · Limited investigation · Final report · Nov 13, 2015 · N449MC · Substantial damage
  > The pilot’s failure to maintain adequate rotor speed while maneuvering at low altitude, which resulted in a descent from which he was unable to recover. Contributing to the accident was the pilot's decision to conduct the flight at or near the helicopter's…
- [NTSB GAA16CA006](https://openairdocs.org/ntsb/GAA16CA006.md): Robinson Helicopter R44 II · Devine, TX · Accident · No injuries · Data collection · Final report · Oct 5, 2015 · N174CD · Substantial damage
  > The pilot's failure to maintain obstacle clearance during the takeoff, which resulted in the helicopter striking power lines.
- [NTSB CEN15LA439](https://openairdocs.org/ntsb/CEN15LA439.md): Robinson Helicopter R44 II · Alice, TX · Accident · No injuries · Limited investigation · Final report · Sep 14, 2015 · N442CF · Substantial damage
  > A loss of engine power during a practice power recovery autorotation for reasons that could not be determined based on the available information.
- [NTSB CEN15LA387](https://openairdocs.org/ntsb/CEN15LA387.md): Robinson R44 II · Cheyenne, WY · Accident · Serious injuries · Limited investigation · Final report · Aug 28, 2015 · N440SA · Substantial damage
  > The pilot's improper preflight performance planning, which resulted in a hard landing due to low rotor rpm while operating near maximum gross weight in high density altitude conditions.
- [NTSB CEN15LA375](https://openairdocs.org/ntsb/CEN15LA375.md): Robinson Helicopter R44 II · Carlos, TX · Accident · Serious injuries · Limited investigation · Final report · Aug 22, 2015 · N445HS · Substantial damage
  > The pilot’s improper decision to turn the helicopter toward a tailwind during an out-of-ground-effect hover, which resulted in a loss of tail rotor effectiveness. Contributing to the accident was the accident and lead pilots’ inadequate preflight risk…
- [NTSB CEN15LA285](https://openairdocs.org/ntsb/CEN15LA285.md): Robinson Helicopter R44 II · Danville, AR · Accident · No injuries · Limited investigation · Final report · Jun 21, 2015 · N305CG · Substantial damage
  > The loss of engine power for reasons that could not be determined based on the available information.
- [NTSB CEN15LA198](https://openairdocs.org/ntsb/CEN15LA198.md): Robinson Helicopter R44 II · Dunlap, IL · Accident · No injuries · Limited investigation · Final report · Apr 15, 2015 · N754R · Substantial damage
  > A loss of main rotor rpm for reasons that could not be determined during postaccident examinations.
- [NTSB ERA15FA164](https://openairdocs.org/ntsb/ERA15FA164.md): Robinson Helicopter R44 II · Orlando, FL · Accident · 3 fatal · Field investigation · Final report · Mar 22, 2015 · N30242 · Destroyed
  > An inflight loss of control due to the likely detachment of the forward left servo control tube upper rod end attachment bolt.
- [NTSB ERA15CA089](https://openairdocs.org/ntsb/ERA15CA089.md): Robinson Helicopter R44 II · Barranquitas, PR · Accident · Minor injuries · Data collection · Final report · Jan 2, 2015 · N3183T · Substantial damage
  > The pilot's failure to maintain control of the helicopter while landing which resulted in a tailrotor ground strike and collision with terrain.
- [NTSB CEN15CA093](https://openairdocs.org/ntsb/CEN15CA093.md): Robinson Helicopter R44 II · Horseshoe Bay, TX · Accident · No injuries · Data collection · Final report · Dec 29, 2014 · N174CD · Substantial damage
  > The helicopter's contact with the landing pad during a rejected landing.
- [NTSB WPR15FA051](https://openairdocs.org/ntsb/WPR15FA051.md): Robinson Helicopter R44 · Bountiful, UT · Accident · 2 fatal · Field investigation · Final report · Dec 2, 2014 · N3234U · Substantial damage
  > The pilot/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 a subsequent loss of control.
- [NTSB WPR14LA353](https://openairdocs.org/ntsb/WPR14LA353.md): Robinson Helicopter R44 II · Pahrump, NV · Accident · Minor injuries · Limited investigation · Final report · Aug 24, 2014 · N4246Z · Substantial damage
  > A total loss of engine power during a practice autorotation for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation.
- [NTSB WPR14CA325](https://openairdocs.org/ntsb/WPR14CA325.md): Robinson Helicopter R44 II · Honolulu, HI · Accident · No injuries · Data collection · Final report · Aug 2, 2014 · N110JC · Substantial damage
  > The pilot's inadequate compensation for the wind conditions and failure to maintain aircraft control during taxi, which resulted in a loss of tail rotor effectiveness and subsequent impact with the taxiway and a parked fuel truck.
- [NTSB CEN14LA197](https://openairdocs.org/ntsb/CEN14LA197.md): Robinson R44 - II · Menard, TX · Accident · No injuries · Limited investigation · Final report · Mar 23, 2014 · N44MD · Substantial damage
  > The pilot’s inadequate recovery from a practice autorotation, which resulted in an improper touchdown attitude and collision with terrain.
- [NTSB CEN14LA149](https://openairdocs.org/ntsb/CEN14LA149.md): Robinson Helicopter R44 II · Presidio, TX · Accident · Serious injuries · Limited investigation · Final report · Feb 24, 2014 · N360AH · Substantial damage
  > The pilot’s failure to maintain sufficient rotor rpm when transitioning the helicopter from a hover to forward flight, which resulted in a loss of helicopter control.
- [NTSB WPR14CA019](https://openairdocs.org/ntsb/WPR14CA019.md): Robinson R44 - II · Sedro Woolley, WA · Accident · No injuries · Data collection · Final report · Oct 18, 2013 · N414CC · Substantial damage
  > The non-instrument rated pilot's inadvertent encounter with instrument meteorological conditions during initial climb and his improper decision to continue flight, which resulted in an in-flight impact with a tree and an emergency descent that resulted in a…
- [NTSB WPR13CA424](https://openairdocs.org/ntsb/WPR13CA424.md): Robinson R44 - II · Flagstaff, AZ · Accident · Minor injuries · Data collection · Final report · Sep 25, 2013 · N190SH · Substantial damage
  > The pilot's failure to maintain rotor rpm while landing in a gusty wind at a high density altitude.
- [NTSB CEN13FA517](https://openairdocs.org/ntsb/CEN13FA517.md): Robinson R44 II · Caballo, NM · Accident · 3 fatal · Field investigation · Final report · Aug 31, 2013 · N3156U · Substantial damage
  > The pilot’s failure to see and avoid power lines while maneuvering near the ground because dust stirred up by the rotor wash obscured his visibility.
- [NTSB CEN13LA507](https://openairdocs.org/ntsb/CEN13LA507.md): Robinson Helicopter R44 II · Clayton, NM · Accident · Minor injuries · Limited investigation · Final report · Aug 26, 2013 · N744KA · Substantial damage
  > The pilot's loss of vertical control after the helicopter encountered a gusty tailwind while maneuvering at a low altitude and near the helicopter's maximum gross weight.
- [NTSB WPR13FA264](https://openairdocs.org/ntsb/WPR13FA264.md): Robinson Helicopter R44 II · Los Angeles, CA · Accident · Minor injuries · Field investigation · Final report · Jun 6, 2013 · N915BW · Substantial damage
  > The pilot’s loss of helicopter control following a precautionary landing, which resulted in a dynamic rollover.
- [NTSB CEN13FA295](https://openairdocs.org/ntsb/CEN13FA295.md): Robinson Helicopter R44 II · Cross Timbers, MO · Accident · 2 fatal · Field investigation · Final report · May 24, 2013 · N569BC · Destroyed
  > The pilot's failure to see and avoid a power line during the low-altitude flight.
- [NTSB ERA13LA152](https://openairdocs.org/ntsb/ERA13LA152.md): Robinson Helicopter R44 II · Ciales, PR · Accident · Minor injuries · Limited investigation · Final report · Mar 2, 2013 · N834RC · Destroyed
  > A loss of main rotor rpm for reasons that could not be determined because an examination of the helicopter’s engine and associated components did not reveal any mechanical malfunctions or failures that would have precluded normal operation.
- [NTSB CEN13CA124](https://openairdocs.org/ntsb/CEN13CA124.md): Robinson Helicopter R44 II · Menard, TX · Accident · No injuries · Data collection · Final report · Jan 2, 2013 · N744RM · Substantial damage
  > The helicopter landed hard during a forced landing.
- [NTSB WPR13CA064](https://openairdocs.org/ntsb/WPR13CA064.md): Robinson Helicopter R44 II · Roosevelt Lake, AZ · Accident · Serious injuries · Data collection · Final report · Dec 7, 2012 · N557AC · Substantial damage
  > The pilot's visual disorientation, which resulted in a collision with the lake.
- [NTSB WPR13FA054](https://openairdocs.org/ntsb/WPR13FA054.md): Robinson Helicopter R44 II · Corona, CA · Accident · 1 fatal · Field investigation · Final report · Nov 26, 2012 · N4204A · Substantial damage
  > The pilot's failure to maintain clearance between the helicopter’s main rotor blades and the metal canopy of a fuel island.
- [NTSB CEN13CA053](https://openairdocs.org/ntsb/CEN13CA053.md): Robinson Helicopter R44 II · Bryan, TX · Accident · No injuries · Data collection · Final report · Nov 6, 2012 · N131AA · Substantial damage
  > The pilot’s over-correction in an attempt to stabilize the helicopter during liftoff.
- [NTSB CEN13FA010](https://openairdocs.org/ntsb/CEN13FA010.md): Robinson Helicopter R44 II · Blanco, TX · Accident · 3 fatal · Field investigation · Final report · Oct 12, 2012 · N474FA · Substantial damage
  > The pilot's loss of helicopter control as a result of spatial disorientation due to dark night conditions and marginal visual flight rules weather conditions.
- [NTSB CEN12CA643](https://openairdocs.org/ntsb/CEN12CA643.md): Robinson Helicopter R44 II · Slaton, TX · Accident · No injuries · Data collection · Final report · Sep 18, 2012 · N957R · Substantial damage
  > The pilot’s misalignment of the helicopter during landing, which resulted in the helicopter’s fall from a raised platform.
- [NTSB WPR12LA267](https://openairdocs.org/ntsb/WPR12LA267.md): Robinson Helicopter R44 II · Scottsdale, AZ · Accident · Minor injuries · Limited investigation · Final report · Jun 17, 2012 · N808WH · Substantial damage
  > The flight instructor’s failure to maintain adequate rotor rpm during a practice autorotation, which resulted in a loss of helicopter control and subsequent hard landing.
- [NTSB CEN12LA359](https://openairdocs.org/ntsb/CEN12LA359.md): Robinson Helicopter R44 II · Santa Teresa, NM · Accident · No injuries · Limited investigation · Final report · Jun 10, 2012 · N744JS · Substantial damage
  > The sudden decrease in headwind during takeoff in a gusty wind and near a passing train, which resulted in a loss of lift and main rotor rpm. Contributing to the accident was the pilot's decision to operate the helicopter near its maximum performance…
- [NTSB WPR12CA162](https://openairdocs.org/ntsb/WPR12CA162.md): Robinson Helicopter R44 II · Henderson, NV · Accident · No injuries · Data collection · Final report · Apr 9, 2012 · N55NZ · Substantial damage
  > The pilot did not maintain directional and yaw control of the helicopter during approach and landing, which resulted in a dynamic rollover.
- [NTSB ANC12CA018](https://openairdocs.org/ntsb/ANC12CA018.md): Robinson Helicopter R44 II · Beluga, AK · Accident · No injuries · Data collection · Final report · Jan 21, 2012 · N4510T · Substantial damage
  > Ground personnel's movement of cargo in windy conditions, which allowed a previously secured cargo sack to blow into the main rotor blades.
- [NTSB CEN11CA511](https://openairdocs.org/ntsb/CEN11CA511.md): Robinson Helicopter R44 II · Broomfield, CO · Accident · No injuries · Data collection · Final report · Jul 23, 2011 · N915BW · Substantial damage
  > A loss of control due to the pilot's diverted attention as a result of an open door.
- [NTSB CEN11FA468](https://openairdocs.org/ntsb/CEN11FA468.md): Robinson Helicopter R44 II · Rising Sun, IN · Accident · 1 fatal · Field investigation · Final report · Jul 9, 2011 · N42333 · Substantial damage
  > The noninstrument-rated pilot's decision to continue the visual flight rules flight into instrument meteorological conditions, which resulted in his spatial disorientation and failure to maintain clearance from terrain.
- [NTSB ERA11CA180](https://openairdocs.org/ntsb/ERA11CA180.md): Robinson Helicopter R44 II · Weston, FL · Accident · Serious injuries · Data collection · Final report · Mar 5, 2011 · N4168W · Substantial damage
  > The pilot's failure to maintain adequate altitude and physical alertness which resulted in an in-flight collision with the water. Contributing to the accident was the pilot's fatigue.
- [NTSB CEN11CA126](https://openairdocs.org/ntsb/CEN11CA126.md): Robinson Helicopter R44 II · Hemphill, TX · Accident · Minor injuries · Data collection · Final report · Dec 22, 2010 · N841SA · Substantial damage
  > The student pilot’s improper decision to carry an unauthorized passenger and the passenger’s loss of control of the helicopter during take-off.
- [NTSB ERA10FA403](https://openairdocs.org/ntsb/ERA10FA403.md): Robinson Helicopter R44 II · Blairsville, GA · Accident · 2 fatal · Field investigation · Final report · Aug 2, 2010 · N34JS · Substantial damage
  > The non-instrument-rated pilot's continued visual flight into instrument meteorological conditions, which resulted in controlled flight into terrain.
- [NTSB CEN10CA417](https://openairdocs.org/ntsb/CEN10CA417.md): Robinson Helicopter R44 II · Shreveport, LA · Accident · No injuries · Data collection · Final report · Jul 19, 2010 · N721BB · Substantial damage
  > The student pilot's failure to maintain control of the helicopter during takeoff, resulting in a loss of tail rotor effectiveness and a subsequent hard landing.
- [NTSB WPR09LA460](https://openairdocs.org/ntsb/WPR09LA460.md): Robinson Helicopter R44 II · Valley Center, CA · Accident · Serious injuries · Limited investigation · Final report · Sep 20, 2009 · N4174P · Substantial damage
  > The failure of the engine’s camshaft due to fatigue of unknown origin.
- [NTSB ANC09LA098](https://openairdocs.org/ntsb/ANC09LA098.md): Robinson Helicopter R44 II · Central, AK · Accident · No injuries · Limited investigation · Final report · Sep 7, 2009 · N4186Y · Substantial damage
  > The pilot’s failure to maintain control of the helicopter after an in-flight encounter with a downdraft while landing. Contributing to the accident was the pilot’s inadequate evaluation of wind conditions.
- [NTSB ERA09LA421](https://openairdocs.org/ntsb/ERA09LA421.md): Robinson Helicopter R44 II · Dunedin, FL · Accident · No injuries · Limited investigation · Final report · Jul 24, 2009 · N645JC · Substantial damage
  > A partial loss of engine power for undetermined reasons.
- [NTSB WPR09LA312](https://openairdocs.org/ntsb/WPR09LA312.md): Robinson Helicopter R44 II · Lakeport, CA · Accident · No injuries · Limited investigation · Final report · Jun 25, 2009 · N515DG · Substantial damage
  > A loss of engine power while maneuvering for undetermined reasons.
- [NTSB CEN09CA270](https://openairdocs.org/ntsb/CEN09CA270.md): Robinson Helicopter R44 II · Kent, TX · Accident · No injuries · Data collection · Final report · Apr 23, 2009 · N518SJ · Substantial damage
  > The pilot's failure to maintain control of the helicopter.

Next page: https://openairdocs.org/ntsb.md?engine=41899&page=4

## 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 ('41899'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41899&page=3

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