ANC96TA087

NTSB accident investigation · Cessna 185F · Gustavus, AK · June 11, 1996

Accident · No injuriesFinal report
Date
June 11, 1996, 12:10 local (20:10 UTC)
Place
Gustavus, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N56581Cessna 185F
Weather
Visual (VMC) · Day
Status
Completed · report December 16, 1996
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19960611030049A
Case key
2920

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 the wind conditions. A factor associated with the accident was a crosswind.

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 - crosswindFactor
Directional control - not maintainedPilot in command
Compensation for wind conditions - inadequatePilot in commandCause
Dragged wing,rotor,pod,float or tail/skidLanding - roll

Analysis

The pilot was landing a tailwheel airplane on a hard surfaced runway. The airplane's main landing gear wheels were equipped with over-sized, 'Tundra' tires. The pilot stated that immediately upon touchdown, the airplane began to veer to the right. He said he sensed a crosswind, and applied left aileron. He applied brakes, and heard the left wing scrapping the runway. When he exited the airplane, he noticed the left main tire was flat, and the left aileron was damaged.

Factual narrative

On June 11, 1996, about 1210 Alaska daylight time, a "Tundra" tire equipped Cessna 185 airplane, N56581, sustained substantial damage while landing at the Gustavus Airport, Gustavus, Alaska. The solo, commercial certificated pilot was not injured. The airplane was being operated in visual meteorological conditions by the U.S. National Park Service under 14 CFR Part 91. The flight last departed Yakutat, Alaska, about 1030.

According to the pilot, as per a written statement given to a Federal Aviation Inspector on June 12, he said that as he approached Gustavus for landing, the Automated Weather Observation Station (AWOS)was reporting the wind as 090 degrees at 6 knots. He said he observed no crosswind as he approached runway 10. He said upon touchdown, the airplane immediately began to veer to the right. Sensing a crosswind, the pilot said he "rolled in left aileron." He applied brakes, and heard the left wing scraping the runway. When the airplane came to rest, the pilot noted that the left tire was flat, and the left aileron was damaged. In the pilot's written statement submitted to the NTSB and dated June 17, the pilot stated, in part: "Immediately upon touchdown the plane began hard to the right. I applied the brakes and then heard the left wingtip scraping the runway. ...I did not sense any crosswind." Both versions of the pilot's statements are attached to this report.

At 1214 local time, the AWOS positioned at the Gustavus airport reported the surface wind as 120 degrees at 5 knots.

The airplane's left main wheel assembly, inclusive of the 8.50X10 inch tire, inner tube, and Gar Aero wheel adapters, were examined by the NTSB investigator-in-charge (IIC) at the Office of Aircraft Services (OAS) hangar in Anchorage, Alaska, on June 17. Neither the IIC, or the Chief of Maintenance for OAS, were able to find any evidence of preaccident mechanical deficiency or other anomaly with the wheel assembly.

Aircraft

Registration
N56581
Reported as
Cessna 185F
Category
Airplane
Serial number
18502907
Airframe hours
3,005
Engine
Continental IO-520-D, 300 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 91
Operator
National Park Service
Registered owner
U.S. Department Of Interior
Airworthiness certificate
Standard, Normal; Standard, Utility
Last inspection
Annual · January 24, 1996 · 67 hours before
Departed
YAK · Yakutat, AK
Destination
GST
Flight plan
VFR
Airport
GST · Gustavus, runway 10, 6,700 × 150 ft, asphalt

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
47
Certificate
Commercial
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
1,534 total · 222 in this make and model · 1,396 as pilot in command · 53 in the last 90 days · 29 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
120° at 5 knots
Visibility
10 statute miles
Temperature
52 °F, dew point 46 °F
Altimeter
29.00 inHg
Observed at
GST

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 N56581 · 1

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