# NTSB ANC06CA006: Cessna 172, N6832A, Naknek, AK, October 23, 2005

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Data collection · Final report
- Date: October 23, 2005, 11:30 local (19:30 UTC)
- Place: Naknek, AK
- Coordinates: 58.732776, -157.020004
- Nearby events: https://openairdocs.org/map.md?lat=58.7328&lon=-157.0200&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report February 28, 2006
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 62715
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC06CA006
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/62715/pdf
- NTSB docket: https://data.ntsb.gov/Docket?ProjectID=62715
- Page: https://openairdocs.org/ntsb/ANC06CA006

## Probable cause

The pilot's inadequate removal of frost from the wings, and his failure to attain adequate airspeed during takeoff initial climb, which resulted in a stall and collision with terrain.  Factors contributing to the accident were the pilot's delayed aborted takeoff, and an inadvertent stall.

## Sequence of events

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

- Loss of control - in flight, takeoff - initial climb
  - ice/frost removal from aircraft - inadequate, pilot in command (cause)
  - abort - delayed, pilot in command (contributing factor)
  - airspeed(vs) - not attained, pilot in command (cause)
  - stall/mush - inadvertent, pilot in command (contributing factor)
- In flight collision with terrain/water, takeoff - initial climb
  - terrain condition - high vegetation

## Analysis

The private certificated pilot was departing uphill from a 1,950 feet long runway on a Title 14, CFR Part 91 local area personal flight.  The pilot indicated that prior to departure, the upper wing surfaces of the airplane had a layer of frost, but he smoothed the surface with a broom.  During the takeoff roll, the pilot said the airplane became airborne in ground effect to an altitude of about 2 feet, about 300 feet before the end of the runway.  The airplane stalled and collided with alder bushes about 75 feet beyond the end of the runway.  The airplane received damage to the wings, fuselage, and engine.

## Factual narrative

The private certificated pilot was departing uphill from a 1,950 feet long runway on a Title 14, CFR Part 91 local area personal flight.  The pilot indicated that prior to departure, the upper wing surfaces of the airplane had a layer of frost, but he smoothed the surface with a broom. During the takeoff roll, the pilot said the airplane became airborne in ground effect to an altitude of about 2 feet, about 300 feet before the end of the runway.  The airplane then descended and collided with alder bushes about 75 feet beyond the end of the runway.  The airplane received damage to the wings, fuselage, and engine.

## Aircraft

- Registration: [N6832A](https://openairdocs.org/deregistered/N6832A-2007-05-05), registration cancelled 2007-05-05, S/N 28932, built 1956 (OpenAirDocs)
- Reported make and model: Cessna 172
- Registry model: [Cessna 172](https://openairdocs.org/model/cessna-172) (registry code 2072402) (OpenAirDocs)
- Registry engine: [Continental 0-300 series](https://openairdocs.org/engine/continental-0-300-series) (registry code 17022, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 28932
- Engines: Continental O-300D reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Daniel L. Glaab
- Airworthiness certificate: Standard, Normal
- Departed: 5NK, Naknek, AK
- Airport: 5NK, Naknek, runway 26

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 39; private; airplane ratings: single-engine land; medical: class 1; flight hours: 480 total, 480 in this make and model

## Weather

- Conditions: Visual (VMC), Day

## 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 20051023030049A](https://openairdocs.org/incident/20051023030049A), Oct 23, 2005: Cessna 172, Naknek, AK, Substantial damage. (-23) The pilot attempted an uphill takeoff on a 1,950 foot long runway. Pilot indicated to NTSB that airplane had been contaminated by frost but he had…

## Docket (1 files)

The files NTSB released with the investigation on March 18, 2022, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=62715. 308 KB in all.

- Pilot-operator aircraft accident report NTSB form 61201 (item 1, PDF, 6 pages, 308 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=746397&FileExtension=pdf&FileName=Pilot-Operator%20Aircraft%20Accident%20Report%20NTSB%20Form%2061201-Rel.pdf

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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