ANC15LA057

NTSB accident investigation · Found Acft Canada FBA 2C1 · Cold Bay, AK · July 24, 2015

Accident · No injuriesLimited investigationFinal report
Date
July 24, 2015, 13:00 local (21:00 UTC)
Place
Cold Bay, AK
Injuries
3 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N798Found Acft Canada FBA 2C1
Defining event
Takeoff: Collision during takeoff/land
Weather
Visual (VMC) · Day
Status
Completed · report July 11, 2016
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
FAA, US DEPT OF THE INTERIOR
FAA report
20150724013949A
Case key
91645

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 failure to maintain adequate distance from surrounding terrain during the takeoff sequence, which resulted in the airplane contacting the terrain, prematurely becoming airborne, and subsequently entering an aerodynamic stall.

Findings · 6

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.

Performance/control parameters: airspeedAircraft › Aircraft oper/perf/capability · Not attained/maintainedFound Acft Canada FBA-2C1: 1 caseAll aircraft: 1,681 casesProbable cause
Performance/control parameters: angle of attackAircraft › Aircraft oper/perf/capability · Not attained/maintainedFound Acft Canada FBA-2C1: 1 caseAll aircraft: 990 casesProbable cause
TerrainEnvironmental issues › Physical environment · Not specifiedFound Acft Canada FBA-2C1: 1 caseAll aircraft: 267 casesProbable cause
Terrain: rough terrainEnvironmental issues › Physical environment · Contributed to outcomeFound Acft Canada FBA-2C1: 1 caseAll aircraft: 442 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 commercial pilot reported that, during a local public flight, he attempted to take off from an unimproved airstrip that included a dogleg right turn. About 100 ft after making the required turn, the pilot realized that he had not corrected enough to the right to get lined up with the straight portion of the takeoff area and that the airplane was drifting left. His failure to maintain adequate distance from surrounding terrain resulted in the airplane contacting a 5-ft-high berm, inadvertently becoming airborne, and entering an aerodynamic stall. The airplane subsequently impacted the tundra in a left-wing-down attitude, bounced, and then came to rest about 180 degrees from the takeoff heading.

Factual narrative

On July 24, 2015, about 1300 Alaska daylight time, a tailwheel-equipped Found Aircraft Canada, Inc., FBA-2C1 airplane, N798, sustained substantial damage after a loss of control during takeoff from an unimproved airstrip near Sennett Point, Unimak Island, Alaska. The certificated commercial pilot and two passengers sustained no injuries. The airplane was registered to the United States Department of the Interior, and operated by the United States Fish and Wildlife Service, under the provisions of Title 14 Code of Federal Regulations (CFR) Part 91 as a public aircraft operations flight. Visual meteorological conditions prevailed, and a visual flight rules (VFR) flight plan was filed and activated. During an interview with a Department of the Interior, Senior Air Safety Investigator, the pilot stated that the selected airstrip consisted of a dogleg of about 150 feet, followed by about a 25-degree right turn for an additional takeoff area of about 1,000 feet, totaling about 1,150 feet of available takeoff distance. About 100 feet after making the required turn, the pilot realized he had not made enough correction to the right to get lined up with the straight portion of the takeoff area and was drifting left. The airplane became airborne after contacting a berm about 5 feet in height, entered an aerodynamic stall, impacted the tundra in a left wing down attitude, bounced, and came to rest about 180 degrees from the takeoff heading. The closest weather reporting facility is Cold Bay Airport, Cold Bay, Alaska, approximately 85 miles northeast of the accident site. At 1253, an aviation routine weather report (METAR) from the Cold Bay Airport was reporting in part: wind from 160 degrees at 7 knots; sky condition few at 500 feet agl, broken at 1,000 feet agl; visibility 10 statute miles; temperature 55 degrees F; dew point 54 degrees F; barometric pressure 29.91 inHg.

Aircraft

Registration
N798
Reported as
Found Acft Canada FBA 2C1
Category
Airplane
Serial number
33
Built
2002
Airframe hours
2,043
Engine
Lycoming IO-540-L1C5, 300 horsepower, reciprocating
Damage
Substantial damage
Flight
Public aircraft - federal · Public use
Operator
United States Fish And Wildlife Service
Registered owner
United States Department Of Interior
Airworthiness certificate
Standard, Normal; Special, Restricted (Special)
Last inspection
Annual · December 4, 2014 · 171 hours before
Departed
26AK · Cold Bay, AK
Destination
CDB · Cold Bay, AK
Flight plan
VFR
Airport
26AK · Cape Sarichef
Equipment
Stall warning system, Handheld GPS, Satellite tracking device

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
69
Injuries
None
Certificates
Commercial, Flight instructor
Airplane ratings
Single-engine sea, Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, With waivers/limitations
Last flight review
May 15, 2015
Seat
Front
Restraint
4-point
Flight hours
24,130 total · 700 in this make and model · 23,990 as pilot in command · 125 in the last 90 days · 55 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
160° at 7 knots
Visibility
10 statute miles
Lowest ceiling
1,000 ft broken
Temperature
55 °F, dew point 54 °F
Altimeter
29.90 inHg
Observed at
PACD, 85 nm away

Docket · 2

The files NTSB released with the investigation on May 23, 2016, on NTSB’s docket system: statements, records, photos and specialists’ reports. 870 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.