ANC16CA049

NTSB accident investigation · Cessna U206 · Cordova, AK · July 20, 2016

Accident · No injuriesData collectionFinal report
Date
July 20, 2016, 09:00 local (17:00 UTC)
Place
Cordova, AK
Injuries
5 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N1222VCessna U206
Defining event
Landing-flare/touchdown: Hard landing
Weather
Visual (VMC) · Day
Status
Completed · report September 12, 2016
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
FAA Juneau FSDO
FAA report
20160720022629A
Case key
93652

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

The pilot's improper landing flare, which resulted in a hard landing and subsequent landing gear separation and collapse.

Findings · 3

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotCessna U206F: 9 casesAll aircraft: 9,295 casesProbable cause
Performance/control parameters: landing flareAircraft › Aircraft oper/perf/capability · Incorrect use/operationCessna U206F: 1 caseAll aircraft: 1,285 casesProbable cause
Runway/land/takeoff/taxi surface: soft surfaceEnvironmental issues › Physical environment · Effect on equipmentCessna U206F: 2 casesAll aircraft: 264 cases

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The pilot reported that while landing the tricycle-geared airplane on a remote beach, he "landed a little hard, but not too hard." Following touchdown, the right main landing separated at the axle, the right wing impacted the ground, and the left main landing gear collapsed. Subsequently, the left wing and the left horizontal stabilizer impacted the ground and sustained substantial damage. The pilot reported that there were no preimpact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation. The Federal Aviation Administration has published the Airplane Flying Handbook FAA-H-8083-3A (2004). This handbook discusses soft-field landings and states in part: Landing on fields that are rough or have soft surfaces, such as snow, sand, mud, or tall grass requires unique procedures. When landing on such surfaces, the objective is to touch down as smoothly as possible, and at the slowest possible landing speed. The pilot must control the airplane in a manner that the wings support the weight of the airplane as long as practical, to minimize drag and stresses imposed on the landing gear by the rough or soft surface.

Factual narrative

The pilot reported that while landing the tricycle-geared airplane on a remote beach, he "landed a little hard, but not too hard." Following touchdown, the right main landing separated at the axle, the right wing impacted the ground, and the left main landing gear collapsed. Subsequently, the left wing and the left horizontal stabilizer impacted the ground and sustained substantial damage. The pilot reported that there were no preimpact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation. The Federal Aviation Administration has published the Airplane Flying Handbook FAA-H-8083-3A (2004). This handbook discusses soft-field landings and states in part: Landing on fields that are rough or have soft surfaces, such as snow, sand, mud, or tall grass requires unique procedures. When landing on such surfaces, the objective is to touch down as smoothly as possible, and at the slowest possible landing speed. The pilot must control the airplane in a manner that the wings support the weight of the airplane as long as practical, to minimize drag and stresses imposed on the landing gear by the rough or soft surface.

Aircraft

Registration
N1222V
Reported as
Cessna U206 (F)
Category
Airplane
Serial number
U20602522
Built
1974
Engine
Continental IO-520F, 300 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Alaska Gulf Coast Adventures
Registered owner
Alaska Gulf Coast Adventures
Airworthiness certificate
Standard, Normal
Last inspection
Annual · June 6, 2016
Departed
CDV · Cordova, AK
Destination
Cordova, AK
Equipment
None

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
62
Injuries
None
Certificates
Flight instructor, Airline transport, Commercial
Airplane ratings
Multi-engine land, Single-engine sea, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, With waivers/limitations
Last flight review
April 4, 2015
Seat
Left
Restraint
3-point
Flight hours
14,000 total · 4,500 in this make and model · 13,950 as pilot in command · 60 in the last 90 days · 14 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
40° at 4 knots
Visibility
6 statute miles
Lowest ceiling
2,100 ft overcast
Temperature
55 °F, dew point 54 °F
Altimeter
29.96 inHg
Observed at
PACV, 26 nm away

Docket · 2

The files NTSB released with the investigation on August 30, 2016, on NTSB’s docket system: statements, records, photos and specialists’ reports. 347 KB in all.

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.