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Accidents · NTSB WPR14CA041 · Final report

Bell 206B accident near Superior, Montana, November 2, 2013

On November 2, 2013 at about 7:15 pm local time, a 1968 Bell 206B (helicopter), registered N888DR, was substantially damaged in an accident during maneuvering (hover) near Superior, Montana. It was a business flight under external-load helicopter rules (Part 133). 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 pilot's failure to maintain aircraft control while maneuvering during a long-line operation.

Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.

What the record shows

Date
November 2, 2013 · about 7:15 pm local time
Place
Superior, Montana · map
Type
Accident
Injuries
No one was hurt; 1 person was on board or involved.
Weather
visual conditions (good weather)
Aircraft
Bell 206B B, built 1968 · all 206Bs on the register
Registration
N888DR · no longer on the register · serial 327
Damage
Substantial damage
Flight
Business flight · external-load helicopter rules (Part 133)

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

The pilot reported that during the last long-line load of the day moving bags of cedar mulch, while on approach to the drop zone, he looked outside at the trees, and did not see any indication of wind; however, he felt a little shudder as the helicopter came out of translational lift. He again looked outside at the trees, and did not see any indication of wind, and continued his approach to the drop zone. Once over the drop zone, as he went to release the bag, he noticed that the remote hook plug had come unplugged. He decided to pick the load back up and move the bag over to the pile of mulch so he could land and manually unhook the bag. When he picked the bag off the ground, the helicopter started to spin to the right, which he was unable to stop. He noticed that the collective was in the full up position so he lowered it to stop the spinning; however, before he could arrest the spinning, the helicopter struck a pile of mulch, and rolled onto its right side, which resulted in substantial damage to the fuselage. The pilot reported no preimpact mechanical malfunctions or failures that would have precluded normal operation.

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. External load event (Rotorcraft) during maneuvering (hover)
  2. Sys/Comp malf/fail (non-power) during maneuvering (hover) defining event
  3. Loss of tail rotor effectiveness during maneuvering (hover)
  4. Collision with terrain or object (not controlled flight into terrain) during maneuvering (hover)

The NTSB's findings

  • cause Personnel issues › Action/decision › Action › Delayed action › Pilot
  • cause Personnel issues › Task performance › Use of equip/info › Aircraft control › Pilot
  • Aircraft › Aircraft systems › Equipment/furnishings › Agricultural/external load sys › Inoperative

Pilot

  • Certificate: commercial pilot
  • Ratings: single-engine land; rotorcraft: helicopter
  • Flight time: 1,150 hours in all; 360 in this make and model; 1,064.6 as pilot in command
  • Last flight review: May 20, 2013
  • Medical certificate: Class 2 (with waivers/limitations)
  • Seat: rgt
  • Injury: no injuries

The aircraft

  • Airframe total time: 13,298 hours
  • Last inspection: annual inspection, May 15, 2013; 28 hours since
  • Maximum gross weight: 3,200 lb
  • Landing gear: fixed
  • Engine: Allison 250 SER 400HP (turboshaft); 6,211 hours total
  • Operator: Montana Aero INC

The flight

  • Departed from: 90MT Missoula MT at 5:00 pm
  • Destination: Superior MT
  • Flight plan: none

Weather at the time

  • Light: daylight
  • Wind: from 290° at 5 knots
  • Visibility: 10 statute miles
  • Sky: overcast at 9,500 ft; a few clouds at 7,500 ft
  • Temperature: 46°F (8°C), dew point 32°F (0°C)
  • Altimeter: 29.69 inHg
  • Observation at 6:53 pm from MSO, 45 miles away

Injuries

FatalSeriousMinorNone
Flight crew1

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

1 document, released by the NTSB on December 9, 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.

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 never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.