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Accidents · NTSB GAA16CA446 · Final report

Cessna A185 accident near Caldwell, Idaho, August 21, 2016

On August 21, 2016 at about 9:34 pm local time, a 1976 Cessna A185, registered N4477R, was substantially damaged in an accident during landing (landing roll) near Caldwell, Idaho (Caldwell Industrial airport). It was a personal flight under general aviation rules (Part 91). No one was hurt; 2 people were 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 directional control during the landing roll in crosswind conditions, which resulted in a ground loop.

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

What the record shows

Date
August 21, 2016 · about 9:34 pm local time
Place
Caldwell, Idaho · Caldwell Industrial · map
Type
Accident
Injuries
No one was hurt; 2 people were on board or involved.
Weather
visual conditions (good weather)
Aircraft
Cessna A185 F, built 1976 · all A185s on the register
Registration
N4477R · registry record · serial 18502967
Damage
Substantial damage
Flight
Personal flight · general aviation rules (Part 91)

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

The pilot of a tailwheel-equipped airplane reported that during the landing roll with a crosswind the airplane drifted to the left. He further reported that his control inputs to correct created a "swerve," which resulted in a ground loop to the right on the runway. During the ground loop, the left wing was substantially damaged after an impact with the runway.  An automated weather observing system near the time of the accident at the airport recorded the wind at 340 degrees true at 8 knots. The pilot reported he landed on runway 30. The pilot did not report any mechanical malfunction or failure with the airplane 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. Other weather encounter during landing
  2. Loss of control on ground during landing (landing roll) defining event
  3. Abnormal runway contact during landing (landing roll)

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 › Directional control › Not attained/maintained
  • Environmental issues › Conditions/weather/phenomena › Wind › Crosswind › Ability to respond/compensate

Pilot

  • Certificate: commercial pilot
  • Ratings: single-engine land; single-engine sea; instrument: airplane; rotorcraft: glider
  • Flight time: 1,859 hours in all; 1,118 in this make and model; 20 in the last 90 days; 15 in the last 30 days; 1,772 as pilot in command; 414 on instruments
  • Last flight review: June 25, 2016
  • Medical certificate: Class 3 (with waivers/limitations)
  • Seat: left
  • Injury: no injuries

Passenger

  • Seat: rgt
  • Injury: no injuries

The aircraft

  • Airframe total time: 2,419 hours
  • Last inspection: annual inspection, May 20, 2016
  • Maximum gross weight: 3,350 lb
  • Seats: 4
  • Landing gear: fixed
  • Engine: Continental IO-520-D (piston); 250 hours total

The flight

  • Departed from: HES Healdsburg CA at 6:30 pm
  • Destination: EUL Caldwell ID
  • Flight plan: none
  • Runway 30, 5,500 ft by 100 ft

Weather at the time

  • Light: daylight
  • Wind: from 340° at 8 knots
  • Visibility: 10 statute miles
  • Sky: clear
  • Temperature: 93°F (34°C), dew point 39°F (4°C)
  • Altimeter: 29.80 inHg
  • Observation at 9:56 pm from KEUL

Injuries

FatalSeriousMinorNone
Flight crew1
Passengers1

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

2 documents, released by the NTSB on October 5, 2016. 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.