# NTSB ANC93LA035: Cessna 206, N5036U, Bradley Lake, AK, February 20, 1993

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Limited investigation · Final report
- Date: February 20, 1993, 07:57 local (11:57 UTC)
- Place: Bradley Lake, AK
- Coordinates: 59.399246, -151.320724 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=59.3992&lon=-151.3207&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 4 serious, 1 uninjured
- Status: Completed, report November 3, 1993
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 5864
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC93LA035
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/5864/pdf
- Page: https://openairdocs.org/ntsb/ANC93LA035

## Probable cause

THE PILOT IN COMMAND NOT REMOVING THE FROST FROM THE PLANE'S AIRFOIL SURFACES BEFORE TAKEOFF AND NOT ABORTING THE TAKEOFF WHEN THE AIRPLANE SHOWED NO SIGN OF WANTING TO FLY AT THE INITIAL ROTATION POINT/AIRSPEED. A FACTOR IN THE ACCIDENT WAS THE ICING CONDITIONS.

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Overrun, takeoff - roll/run
  - weather condition - icing conditions (contributing factor)
  - ice/frost removal from aircraft - not performed, pilot in command (cause)
  - aborted takeoff - not performed, pilot in command (cause)
- On ground/water collision with object, takeoff - roll/run
  - object - runway light
- In flight collision with object, takeoff - initial climb
  - object - fence
- In flight collision with terrain/water, takeoff - initial climb

## Analysis

THE PILOT SAID THAT HE ELECTED NOT TO POLISH OR REMOVE THE FROST FROM THE AIRFOIL SURFACES OF THE PLANE DURING THE PREFLIGHT BECAUSE HE DID NOT BELIEVE THAT IT WAS HEAVY OR COARSE ENOUGH TO BE OF ANY CONSEQUENCE TO THE TAKEOFF PERFORMANCE OF THE AIRPLANE.  HALFWAY DOWN THE 2,000 FOOT STRIP, THE PILOT COMMENCED TO ROTATE THE AIRPLANE FOR LIFTOFF BUT THE AIRPLANE REMAINED ON THE RUNWAY.  THE PILOT SAID THAT, 'THE AIRPLANE FELT LIKE IT WAS STUCK TO THE RUNWAY'.  A SECOND ATTEMPT WAS IMMEDIATELY MADE TO GET THE AIRPLANE TO FLY.  THE AIRPLANE MAY HAVE ATTAINED AN ALTITUDE OF ONE TO TWO FEET BEFORE SETTLING BACK ONTO THE RUNWAY.  THE PILOT REDUCED ENGINE POWER IN ANTICIPATION OF ABORTING THE TAKEOFF BUT QUICKLY CHANGED HIS MIND BECAUSE THERE WAS ONLY ABOUT 500 FEET OF RUNWAY REMAINING AND HE DID NOT BELIEVE THERE WAS SUFFICIENT ROOM AVAILABLE TO SAFELY STOP THE AIRPLANE. THE AIRPLANE DEPARTED THE END OF THE AIRSTRIP AT APPROXIMATELY 85 KNOTS, STRUCK A THRESHOLD LIGHT, AND ATTAINED AN ALTITUDE OF ABOUT THREE FEET BEFORE COLLIDING WITH A PERIMETER FENCE AND ROCK COVERED TERRAIN.

## Aircraft

- Registration: [N5036U](https://openairdocs.org/deregistered/N5036U-2008-10-24), registration cancelled 2008-10-24, S/N 2060036, built 1963 (OpenAirDocs)
- Reported make and model: CESSNA 206
- Registry model: [Cessna 206](https://openairdocs.org/model/cessna-206) (registry code 2073302) (OpenAirDocs)
- Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 2060036
- Airframe hours: 8475
- Engines: CONTINENTAL IO-520F 300 horsepower reciprocating
- Damage: Destroyed
- Flight: Part 135
- Operator: South Central Air
- Registered owner: Vern L. Lofstedt
- Airworthiness certificate: Standard, Normal
- Last inspection: AAIP, February 8, 1993, 18 hours before
- Destination: HOM, HOMER, AK
- Airport: Bradley Lake, runway 24, 2,000 × 50 ft, gravel

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 30; airline transport; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: left; toxicology performed; flight hours: 4,400 total, 2,145 in this make and model, 4,350 as pilot in command, 191 in the last 90 days, 79 in the last 30 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Dawn
- Wind: 290° at 5 knots
- Visibility: 30 statute miles
- Lowest ceiling: 10,000 ft broken
- Temperature: 28 °F, dew point 28 °F
- Altimeter: 29.00 inHg

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19930220003009A](https://openairdocs.org/incident/19930220003009A), Feb 20, 1993: Cessna U206, Bradley Lake, AK, Destroyed. Tried to depart with full flaps and frost on wings. Lifted slightly. Failed to abort. Ran off end into a fence.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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