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Accidents · NTSB ERA12CA357 · Final report

Hughes TH-55 accident near Pittsfield, Pennsylvania, May 19, 2012

On May 19, 2012 at about 9:17 pm local time, a Hughes TH-55 (helicopter), registered N74914, was substantially damaged in an accident during approach near Pittsfield, Pennsylvania (Brokeenstraw Airport). It was a personal flight under general aviation rules (Part 91). No one was hurt; 1 person was on board or involved. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

The student pilot's failure to maintain helicopter control during an encounter with loss of tail rotor effectiveness.

Source: NTSB aviation accident database, copy made November 2, 2026. Docket and reports at the NTSB.

What the record shows

Date
May 19, 2012 · about 9:17 pm local time · cases in 2012
Place
Pittsfield, Pennsylvania · Brokeenstraw Airport · cases near this airport · map
Type
Accident
Injuries
No one was hurt; 1 person was on board or involved.
Weather
visual conditions (good weather)
Aircraft
Hughes TH-55 · all TH-55s on the register
Registration
N74914 · registry record · serial 67-15442
Damage
Substantial damage
Flight
Personal flight · general aviation rules (Part 91)

The NTSB's narrative final · quoted from the NTSB record

According to the student pilot, who had about 36 hours total flight time, he had completed a solo flight earlier in the day that included seven takeoffs and landings. After refueling, he completed a local flight and returned to the departure airport, where he initiated an approach that terminated "perfectly" in a normal hover. However, the helicopter then "started spinning to the right," and the spin could not be arrested with full application of left pedal. The pilot stated that he then increased collective pitch and the corresponding increase in engine power aggravated the spin. He then attempted a hovering autorotation, but the helicopter landed hard, rolled over on to its side, and was substantially damaged. A witness described the helicopter as it approached "flying somewhat erratically" about 40 feet above the runway. The helicopter was "twisting" to the left and right as it hovered "shakily" closer to the runway. The helicopter noise increased, the nose pitched up, the main rotors struck the ground, and the helicopter came to rest on its side. A detailed examination of the wreckage revealed no preimpact mechanical malfunctions or anomalies that would have precluded normal operation. A Federal Aviation Administration advisory circular stated that loss of tail rotor effectiveness (LTE) is a critical, low-speed aerodynamic flight characteristic which could result in an uncommanded rapid yaw rate which does not subside of its own accord and, if not corrected, could result in the loss of aircraft control. Further, any maneuver that required the pilot to operate in a high-power, low-airspeed environment with a left crosswind or tailwind would create an environment where unanticipated right yaw may occur. The nearest weather reporting station, which was located about 19 nautical miles from the accident site, recorded a 7-knot, left quartering tailwind for the landing on runway 9.

The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.

The factual record from the NTSB's investigation tables, in plain English

What happened, in order

  1. Loss of tail rotor effectiveness during approach
  2. Attempted remediation/recovery during approach
  3. Loss of control in flight during approach defining event
  4. Collision with terrain or object (not controlled flight into terrain) during approach

The NTSB's findings

  • cause Aircraft › Aircraft propeller/rotor › Tail rotor › (general) › Related operating info
  • cause Personnel issues › Action/decision › Action › Incorrect action selection › Student pilot
  • Personnel issues › Experience/knowledge › Experience/qualifications › Total experience › Student pilot

Dual student

  • Certificate: student
  • Ratings: rotorcraft: helicopter
  • Flight time: 36 hours in all; 36 in this make and model; 16 in the last 90 days; 13 in the last 30 days; 6 as pilot in command; 0 on instruments
  • Medical certificate: Class 2 (with waivers/limitations)
  • Seat: rgt
  • Injury: no injuries

The aircraft

  • Airframe total time: 12,905 hours
  • Last inspection: annual inspection, August 8, 2011
  • Maximum gross weight: 1,670 lb
  • Seats: 2
  • Landing gear: fixed
  • Engine: Lycoming HIO-360 SER (piston); 0 hours total

The flight

  • Departed from: P15 Pittsfield PA at 7:00 pm
  • Destination: P15 Pittsfield PA
  • Flight plan: none
  • Runway 09, 2,665 ft by 100 ft

Weather at the time

  • Light: daylight
  • Wind: from 330° at 7 knots
  • Visibility: 10 statute miles
  • Sky: clear
  • Temperature: 79°F (26°C), dew point 46°F (8°C)
  • Altimeter: 30.17 inHg
  • Observation at 9:15 pm from KJHW, 19 miles away

Injuries

FatalSeriousMinorNone
Flight crew1

Documents from the investigation the NTSB's docket: the evidence folder behind the report

7 documents, released by the NTSB on January 25, 2013. View them here, or download them; the NTSB redacts some personal details before release, and this site shows the NTSB's own titles rather than its file names.

The same docket at the NTSB · documents without a copy here are fetched from the NTSB when you open them.

Other NTSB records under N74914 the same tail number, which may have belonged to a different aircraft at the time

1997-12-09ATL98LA021 · accident near Bushnell, FL · substantial damage · no injuries

Connections how this case links to the rest of the register

Aircraft
Place
Record

The whole map of how records connect · these connections as data: /graph/accident/ERA12CA357.json.

The bigger picture in Aviation Analytics: accidents over time since 1982, by model, by phase of flight and conditions, by place and on the map.

Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text does not name anyone involved, its policy at this time. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.