# NTSB ANC87LA066: Cessna 170B, N2754D, Kenai, AK, May 6, 1987

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Limited investigation · Final report
- Date: May 5, 1987, 21:00 local (May 6, 1987, 05:00 UTC)
- Place: Kenai, AK
- Coordinates: 60.659618, -150.900665 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=60.6596&lon=-150.9007&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 2 serious
- Status: Completed, report April 25, 1988
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 4847
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC87LA066
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/4847/pdf
- Page: https://openairdocs.org/ntsb/ANC87LA066

## Sequence of events

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

- Loss of engine power(total) - mech failure/malf, maneuvering
  - propeller system/accessories,hub - failure,total (cause)
  - aircraft handling - not maintained, pilot in command (contributing factor)
  - propeller system/accessories - separation (cause)
  - airspeed - not maintained, pilot in command (contributing factor)
- Forced landing, descent - emergency
- On ground/water collision with object, landing - flare/touchdown
  - object - tree(s)
- In flight collision with terrain/water, landing - flare/touchdown

## Analysis

THE PILOT STATED DURING A LOW LEVEL FLIGHT ABOVE THE TREES, THE AIRCRAFT STARTED TO VIBRATE. A FEW SECONDS LATER THE PROPELLER COMPLETELY SEPARATED FROM THE AIRCRAFT. THE PROPELLER WAS NOT LOCATED IN THE WOODED AREA. THE PROPELLER SEPARATED FROM THE AIRCRAFT FOR UNDETERMINED REASONS.

## Aircraft

- Registration: [N2754D](https://openairdocs.org/deregistered/N2754D-2012-09-21), registration cancelled 2012-09-21, S/N 25296, built 1952 (OpenAirDocs)
- Reported make and model: CESSNA 170B
- Registry model: [Cessna 170B](https://openairdocs.org/model/cessna-170b) (registry code 2072306) (OpenAirDocs)
- Registry engine: [Continental C145 series](https://openairdocs.org/engine/continental-c145-series) (registry code 17012, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 25296
- Airframe hours: 3512
- Engines: LYCOMING O-340-1A1 170 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Patsy N. Dinnebeck
- Registered owner: Michael C. Bailey
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, March 26, 1987, 8 hours before

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 41; private; airplane ratings: single-engine land, single-engine sea; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 964 total, 52 in this make and model, 899 as pilot in command, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 50° at 5 knots
- Visibility: 20 statute miles
- Lowest ceiling: none
- Temperature: 45 °F, dew point 34 °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 19870505012279A](https://openairdocs.org/incident/19870505012279A), May 5, 1987: Cessna 170B, Kenai, AK, Substantial damage. Complete engine failure. Forced landing in a wooded area. Prop assembly came off during descent. Wings hit trees.

## Other investigations on N2754D (1)

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.

- [NTSB ANC78DAA17](https://openairdocs.org/ntsb/ANC78DAA17), May 17, 1978: Cessna 170B (N2754D), Fairbanks, AK, substantial damage

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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