ANC05CA141

NTSB accident investigation · Cessna 185F · Bettles, AK · September 12, 2005

Accident · No injuriesData collectionFinal report
Date
September 11, 2005, 20:25 local (Sep 12, 2005, 04:25 UTC)
Place
Bettles, AK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N58316Cessna 185F
Weather
Visual (VMC) · Day
Status
Completed · report February 28, 2006
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
20050911020339A
Case key
62461

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 inadequate compensation for a gusty crosswind, which resulted in a loss of control and an inadvertent ground-loop during the landing roll. Factors associated with the accident were the ground-loop and gusts.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of control - on ground/waterLanding - roll
Weather condition - gustsFactor
Compensation for wind conditions - inadequatePilot in commandCause
Weather condition - crosswindFactor
Ground loop/swerve - inadvertentPilot in commandFactor
Main gear collapsedLanding - roll
Terrain condition - runway

Analysis

The airline transport certificated pilot was conducting a 14 CFR Part 135 on-demand passenger flight in a tailwheel-equipped airplane. The pilot said he flew over the airstrip, and the wind sock indicated a strong right crosswind. As the airplane slowed during the landing roll, he said he lost rudder authority, and the airplane ground-looped to the right. He said the left wing received structural damage when it struck the runway following the collapse of the main landing gear. The pilot said there were no known mechanical anomalies with the airplane prior to the accident.

Factual narrative

On September 11, 2005, about 2025 Alaska daylight time, a Cessna 185F airplane, N58316, sustained substantial damage following a loss of control during the landing roll, and subsequent ground-loop at the Prospect Creek Airstrip, 25 miles east of Bettles, Alaska. The airplane was being operated by Jespersen Aircraft Services, doing business as Brooks Range Aviation, Bettles, as a visual flight rules (VFR) on-demand passenger flight under Title 14, CFR Part 135, when the accident occurred. The airline transport certificated pilot and sole passenger were not injured. Visual meteorological conditions prevailed, and company flight following procedures were in effect. The flight originated at the Bettles Airport, Bettles, about 2015.

During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC) on September 12, the pilot said that during landing he noted that there was a strong crosswind from the right. He said after touching down, as the airplane slowed, he lost rudder authority, and the airplane ground-looped to the right. He said the left wing was structurally damaged when the left main landing gear collapsed during the ground-loop. The pilot said there were no known mechanical anomalies with the airplane prior to the accident.

Aircraft

Registration
N58316
Reported as
Cessna 185F
Category
Airplane
Serial number
18503284
Engine
Continental IO-520D, 300 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 135
Operator
Brooks Range Aviation
Registered owner
Jespersen Aircraft Services
Airworthiness certificate
Standard, Normal; Standard, Utility
Departed
PPC · Bettles, AK
Destination
Bettles, AK
Flight plan
Company VFR
Airport
PAPR · Prospect Creek, runway 36

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
44
Injuries
None
Certificates
Flight engineer, Commercial, Airline transport
Airplane ratings
Single-engine land, Multi-engine land, Single-engine sea
Instrument ratings
Airplane
Medical
Class 1
Flight hours
14,500 total · 500 in this make and model · 217 in the last 90 days · 65 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
90° at 15 knots, gusting 20
Visibility
10 statute miles
Lowest ceiling
None
Temperature
50 °F, dew point 45 °F

FAA reports on this event · 1

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

Other investigations on N58316 · 1

Matched to the same aircraft by N-number and date.