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Accidents · NTSB ERA17CA030 · Final report

Kolb FIRE FLY accident near West Middlesex, Pennsylvania, October 28, 2016

On October 28, 2016 at about 7:00 pm local time, a Kolb FIRE FLY, an amateur-built aircraft,, registered UNREG, was substantially damaged in an accident during maneuvering (low-alt flying) near West Middlesex, Pennsylvania (West Middlesex airport). It was a personal flight under general aviation rules (Part 91). 2 people had minor injuries. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

The noncertificated pilot’s loss of airplane control while maneuvering at a low altitude.

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

What the record shows

Date
October 28, 2016 · about 7:00 pm local time
Place
West Middlesex, Pennsylvania · West Middlesex · map
Type
Accident
Injuries
2 people had minor injuries.
Weather
visual conditions (good weather)
Aircraft
Kolb FIRE FLY, amateur-built
Registration
UNREG · no longer on the register · serial 042A021
Damage
Substantial damage
Flight
Personal flight · general aviation rules (Part 91)

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

According to the noncertificated pilot of the unregistered airplane, he was flying at a low altitude when he encountered a wind gust. He then lost control of the airplane, and it subsequently impacted trees, which resulted in substantial damage to the airframe. The pilot reported that there were no preimpact mechanical failures or malfunctions of the airframe or engine 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. Loss of control in flight during maneuvering (low-alt flying) defining event
  2. Collision with terrain or object (not controlled flight into terrain) during maneuvering (low-alt flying)

The NTSB's findings

  • cause Personnel issues › Task performance › Use of equip/info › Aircraft control › Pilot
  • cause Aircraft › Aircraft oper/perf/capability › Performance/control parameters › (general) › Not attained/maintained
  • Environmental issues › Physical environment › Object/animal/substance › Tree(s) › Contributed to outcome

Pilot

  • Flight time: 50 hours in all; 50 in this make and model
  • Medical certificate: None
  • Seat: sngl
  • Injury: minor injuries

The aircraft

  • Maximum gross weight: 500 lb
  • Seats: 1
  • Landing gear: fixed
  • Engine: Rotax 503 (piston); 0 hours total

The flight

  • Departed from: PA21 West Middlesex PA at 6:50 pm
  • Destination: PA21 West Middlesex PA
  • Flight plan: none

Weather at the time

  • Light: daylight
  • Wind: from 170° at 8 knots
  • Visibility: 10 statute miles
  • Sky: broken clouds at 25,000 ft; scat at 3,000 ft
  • Temperature: 52°F (11°C), dew point 37°F (3°C)
  • Altimeter: 30.25 inHg
  • Observation at 6:51 pm from KYNG, 9 miles away

Injuries

FatalSeriousMinorNone
Flight crew1
Passengers1

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

4 documents, released by the NTSB on May 30, 2017. 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.

#DocumentWhat it is
1 Pilot's Statement PDF, 1 page View Download
2 West Middlesex Police Report PDF, 4 pages View Download
3 Witness Statement PDF, 1 page View Download
4 Photos PDF, 2 pages View Download

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

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

2026-07-07CEN26LA246 · accident near Hooker, OK · substantial damage · minor injuries
2026-02-28CEN26LA131 · accident near Van Burensburg, IL · substantial damage · no injuries
2025-10-13ERA26LA017 · accident near Gaffney, SC · substantial damage · serious injuries
2025-09-27CEN25LA397 · accident near Harvard, IL · substantial damage · no injuries
2025-09-12CEN25LA385 · accident near Rossville, IN · substantial damage · serious injuries
2025-07-07CEN25LA242 · incident near Ingram, TX · minor damage · no injuries
2025-06-18DCA25WA305 · accident near N/A · serious injuries
2025-05-01OPS25LA034 · incident near Washington, DC
2025-04-11CEN25LA155 · accident near Brady, TX · substantial damage · serious injuries
2025-01-30DCA25MA108 · accident near Washington, DC · destroyed · fatal

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.