# NTSB investigations, 2012: Roll over

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 WPR13CA067](https://openairdocs.org/ntsb/WPR13CA067.md): Robinson Helicopter R22 Beta · Rawlins, WY · Accident · Minor injuries · Data collection · Final report · Dec 11, 2012 · N4073Q · Substantial damage
  > The pilot's failure to maintain main rotor rpm during takeoff, which resulted in a hard landing and subsequent rollover.
- [NTSB ERA13LA018](https://openairdocs.org/ntsb/ERA13LA018.md): Sikorsky S-55B · Yorktown, NY · Accident · No injuries · Limited investigation · Final report · Oct 12, 2012 · N443FD · Substantial damage
  > The pilot's improper decision to perform a downwind precautionary landing and the helicopter’s resultant settling with power and impact with terrain.
- [NTSB WPR12LA426](https://openairdocs.org/ntsb/WPR12LA426.md): Bell 206 - B · Mammoth Lakes, CA · Accident · No injuries · Limited investigation · Final report · Sep 19, 2012 · N222GR · Destroyed
  > The pilot’s inability to maintain sufficient main rotor rpm while maneuvering in high density altitude conditions, which resulted in a precautionary landing and subsequent rollover.
- [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 CEN12LA557](https://openairdocs.org/ntsb/CEN12LA557.md): Bell 47G-2 · Flandreau, SD · Accident · No injuries · Limited investigation · Final report · Aug 14, 2012 · N444EH · Substantial damage
  > A malfunction of the helicopter’s throttle system, which resulted in a loss of engine power during cruise flight.
- [NTSB CEN12LA525](https://openairdocs.org/ntsb/CEN12LA525.md): Bell 214ST · Avalon, TX · Accident · No injuries · Limited investigation · Final report · Aug 7, 2012 · N409SB · Substantial damage
  > Maintenance personnel’s failure to properly torque the retaining nut and install the cotter pin that secured the helicopter’s tail rotor counterweight bellcrank. Contributing to the accident was the lack of detailed maintenance records that documented…
- [NTSB WPR12CA344](https://openairdocs.org/ntsb/WPR12CA344.md): Rotorway Exec · Colville, WA · Accident · No injuries · Data collection · Final report · Aug 5, 2012 · N156RW · Substantial damage
  > The pilot's lack of experience in the helicopter, which resulted in his failure to maintain ground clearance during the taxi hover, followed by inadvertent ground contact and rollover.
- [NTSB CEN12LA513](https://openairdocs.org/ntsb/CEN12LA513.md): Grumman Acft ENG Cor G-164A · La Salle, CO · Accident · Minor injuries · Limited investigation · Final report · Aug 1, 2012 · N9822 · Substantial damage
  > The loss of engine power due to the detached distributor rotor.
- [NTSB ERA12CA472](https://openairdocs.org/ntsb/ERA12CA472.md): Six Chutter SKY Writer 2 · Hamburg, NY · Accident · Serious injuries · Data collection · Final report · Jul 2, 2012 · UNREG · Substantial damage
  > The operation of a powered parachute by a non-certificated pilot. Contributing to the accident was the non-certificated pilot’s loss of aircraft control while landing.
- [NTSB CEN12CA416](https://openairdocs.org/ntsb/CEN12CA416.md): Michael A Howard Dominator · Omaha, NE · Accident · Minor injuries · Data collection · Final report · Jun 28, 2012 · N447PM · Substantial damage
  > A nosewheel shimmy on takeoff, which resulted in the failure of the nosewheel landing gear and a loss of control.
- [NTSB ERA12LA379](https://openairdocs.org/ntsb/ERA12LA379.md): Bell 427 · Indiantown, FL · Accident · Minor injuries · Limited investigation · Final report · Jun 4, 2012 · N427AL · Substantial damage
  > The inflight collision with birds, resulting in damage to the rotor head assembly and a subsequent forced landing and rollover.
- [NTSB ERA12LA362](https://openairdocs.org/ntsb/ERA12LA362.md): Schweizer 269C · Asheville, NC · Accident · No injuries · Limited investigation · Final report · May 24, 2012 · N7505Y · Substantial damage
  > The use of an aftermarket skid shoe, which resulted in the skid shoe becoming caught on a runway centerline light during the run-on landing.
- [NTSB CEN12LA309](https://openairdocs.org/ntsb/CEN12LA309.md): Quicksilver Sprint II · Lebanon, IL · Accident · Minor injuries · Limited investigation · Final report · May 19, 2012 · N3521A · Substantial damage
  > The total loss of engine power due to a fatigue failure of the crankshaft, attributed to the relative movement between the crankshaft and flywheel assembly.
- [NTSB CEN12LA230](https://openairdocs.org/ntsb/CEN12LA230.md): Robinson Helicopter R22 Beta · Isabel, SD · Accident · Serious injuries · Limited investigation · Final report · Apr 5, 2012 · N104MH · Substantial damage
  > The partial loss of engine power due to carburetor ice.
- [NTSB WPR12LA140](https://openairdocs.org/ntsb/WPR12LA140.md): Robinson Helicopter R22 Beta · Palo Alto, CA · Accident · Minor injuries · Limited investigation · Final report · Mar 15, 2012 · N290SH · Substantial damage
  > The pilot's improper use of the throttle grip, which resulted in the deactivation of the rpm governor and a loss of rotor rpm.
- [NTSB WPR12CA117](https://openairdocs.org/ntsb/WPR12CA117.md): Robinson Helicopter R22 Beta · Randle, WA · Accident · No injuries · Data collection · Final report · Mar 8, 2012 · N54BA · Substantial damage
  > The pilot exceeded the helicopter's performance, resulting in low rotor rpm and settling.
- [NTSB CEN12FA170](https://openairdocs.org/ntsb/CEN12FA170.md): Mooney M20E · San Antonio, TX · Accident · 2 fatal · Field investigation · Final report · Feb 26, 2012 · N9224M · Substantial damage
  > The pilot's inadvertent overboost of the turbocharged engine during initial climb, which resulted in detonation and a partial loss of engine power followed by the pilot's failure to maintain airspeed and the instructor's delayed remedial action, which…
- [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.

## 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") = 2012
  AND c."mKey" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '097' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent"))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/097/sequence?year=2012

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