ANC05TA106

NTSB accident investigation · Cessna 185 · Delta Junction, AK · July 6, 2005

Accident · No injuriesFinal report
Date
July 6, 2005, 13:00 local (21:00 UTC)
Place
Delta Junction, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N8360QCessna 185
Weather
Visual (VMC) · Day
Status
Completed · report February 28, 2006
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
Aviation Management Directorate, FAA-AL-ANC FSDO 03
FAA report
20050706017469A
Case key
62053

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

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Probable cause

The pilot's misjudged distance/altitude during the landing touchdown and subsequent undershoot, and his failure to maintain directional control of the airplane during the landing roll, which resulted in an on-ground encounter with high vegetation.

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.

UndershootLanding - flare/touchdown
Distance/altitude - misjudgedPilot in commandCause
Loss of control - on ground/waterLanding - roll
Directional control - not maintainedPilot in commandCause
On ground/water encounter with terrain/waterLanding - roll
Terrain condition - high vegetation

Analysis

The airline transport certificated pilot was landing at a remote mining airstrip during a public use flight under Title 14, CFR Part 91. The airstrip slopes uphill, and is about 1,000 feet long, and about 16 feet wide. The pilot indicated that during the landing roll, the right main landing gear tire dropped into a rut, pulling the airplane to the right, into several willow trees. During an inspection of the airplane at a Department of Interior repair facility, inspectors discovered damage to an inboard stabilizer rib, which required a major repair. The accident airstrip was examined by an air safety investigator with the Department of the Interior, Aviation Management Directorate, Aviation Safety Division. The investigator reported that the airplane's tailwheel contacted the ground about 53 feet before the beginning of the airstrip. The main landing gear tires contacted the airstrip surface about 75 feet after the initial tailwheel strike. The propeller struck the ground about 52 feet beyond the approach end of the airstrip, and about 30 feet from the initial contact with the main wheels. Following the propeller strikes, the airplane veered to the right and ran through several 2 to 4 foot tall willow trees.

Factual narrative

On July 6, 2005, about 1300 Alaska daylight time, a tundra tire-equipped Cessna 185 airplane, N8360Q, sustained substantial damage when it collided with small willow trees during the landing roll at a remote airstrip, about 44 miles northeast of Delta Junction, Alaska. The airplane was being operated as a visual flight rules (VFR) public use flight under Title 14, CFR Part 91, when the accident occurred. The airplane was operated by the Bureau of Land Management, U.S. Department of the Interior, Anchorage, Alaska. The airline transport certificated pilot, the sole occupant, was not injured. Visual meteorological conditions prevailed, and VFR company flight following procedures were in effect. The flight originated at the Delta Junction Airport, about 1215.

During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC), on July 22, the pilot reported that he was landing toward the east at a remote mining airstrip that was about 2,300 feet msl. He was delivering fuel to the airstrip in support of helicopter operations in the area. The airstrip, known as Last Chance Airstrip, slopes uphill, and is about 1,000 feet long, and about 16 feet wide. The pilot indicated that during the landing roll, the right main landing gear tire dropped into a rut, pulling the airplane to the right, into several willow trees. The propeller was damaged, which was subsequently changed, and the airplane was flown to a repair facility.

The Anchorage Chief, Division of Fleet Services for the Department of the Interior's, Aviation Management Directorate, reported that during an inspection of the airplane at their repair facility in Anchorage, inspectors found a small ripple in the underside of the right horizontal stabilizer skin. Further examination disclosed damage to an inboard stabilizer rib, which will require a major repair.

The Pilot/Operator Aircraft Accident Report (NTSB Form 6120.1) submitted by the pilot, contained a narrative report that was prepared by an air safety investigator with the Department of the Interior, Aviation Management Directorate, Aviation Safety Division. The investigator reported that during an examination of the airstrip, he noted that the airplane's tailwheel contacted the ground about 53 feet before the beginning of the airstrip. The main landing gear tires contacted the airstrip surface about 75 feet after the initial tailwheel strike. The propeller struck the ground about 52 feet beyond the approach end of the airstrip, and about 30 feet from the initial contact with the main wheels. Following the propeller strikes, the airplane veered to the right and ran through several 2 to 4 foot tall willow trees.

Aircraft

Registration
N8360Q
Reported as
Cessna 185
Category
Airplane
Serial number
18503666
Airframe hours
3,844
Engine
Continental IO-520D, 300 horsepower, reciprocating
Damage
Substantial damage
Flight
Public aircraft - federal · Part 91
Operator
Bureau of Land Management
Registered owner
U.S. Department of the Interior
Airworthiness certificate
Standard, Normal
Last inspection
Annual · September 1, 2004 · 99 hours before
Departed
D66 · Delta Junction, AK
Destination
Delta Junction, AK
Flight plan
Company VFR
Airport
Last Chance Airstrip, runway 14, 1,000 × 16 ft, gravel

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
49
Injuries
None
Certificates
Airline transport, Commercial, Flight instructor
Airplane ratings
Single-engine sea, Multi-engine sea, Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, With waivers/limitations
Last flight review
November 1, 2003
Seat
Left
Flight hours
10,000 total · 800 in this make and model · 120 in the last 90 days · 60 in the last 30 days · 6 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
90° at 10 knots
Visibility
20 statute miles
Lowest ceiling
4,000 ft broken
Temperature
70 °F

FAA reports on this event · 1

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