# NTSB SEA94LA023: Cessna 172H, N6629H, Mckenzie Bridge, OR, November 1, 1993

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: November 1, 1993, 12:25 local (20:25 UTC)
- Place: Mckenzie Bridge, OR
- Coordinates: 44.049964, -122.049865 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=44.0500&lon=-122.0499&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor, 1 uninjured
- Status: Completed, report September 13, 1994
- Report: Approved by Office Director
- NTSB case key (mKey): 41847
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA94LA023
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/41847/pdf
- Page: https://openairdocs.org/ntsb/SEA94LA023

## Probable cause

A PARTIAL LOSS OF ENGINE POWER FOR UNDETERMINED REASONS.

## Sequence of events

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

- Loss of engine power, go-around (vfr)
  - reason for occurrence undetermined (cause)
- In flight collision with object, go-around (vfr)

## Analysis

BECAUSE HE CAME IN HIGH AND FAST, THE PILOT EXECUTED A GO-AROUND NEAR THE APPROACH END OF THE 2,600 FOOT LONG REMOTE AIRSTRIP. DURING THE ATTEMPTED GO-AROUND THE ENGINE FAILED TO PRODUCE FULL POWER, AND THE AIRCRAFT FAILED TO CLIMB ABOVE THE TREES AT THE  DEPARTURE END OF THE RUNWAY.

## Factual narrative

On November 1, 1993, approximately 1225 Pacific standard time (PST), a Cessna 172H, N6629H, impacted trees during an attempted go-around at McKenzie Bridge State Airport, McKenzie Bridge, Oregon. The private pilot was not injured, but his passenger received minor injuries, and the aircraft sustained substantial damage. The personal pleasure flight, which departed Hobby Field, Creswell, Oregon, about 30 minutes earlier, was being operated in visual meteorological conditions at the time of the accident. There was no flight plan filed for this flight, and the ELT, which was activated by the impact, was turned off at the scene.

The pilot said that he accidently came in high to the 2,600 foot long remote airstrip. Near the approach end of the runway he initiated a go-around, and repositioned the flaps from their full-down position to the 20 degree position. The pilot said that he applied full throttle, but he felt that the aircraft was not developing full power. He estimated that the aircraft was only able to gain about 20 feet prior to reaching the departure end of the runway. The aircraft collided with trees just off the end of the runway, and then impacted the ground.

An FAA Airworthiness Inspector who examined the engine after the accident was unable to find any reason for the reported power loss.

## Aircraft

- Registration: [N6629H](https://openairdocs.org/deregistered/N6629H-2013-04-26), registration cancelled 2013-04-26, S/N 17265516, built 1975 (OpenAirDocs)
- Reported make and model: CESSNA 172H
- Registry model: [Cessna 172M](https://openairdocs.org/model/cessna-172m) (registry code 2072418) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 17265516
- Engines: LYCOMING O-320-E2D 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Chuck'S Service Center
- Airworthiness certificate: Standard, Utility; Standard, Normal
- Last inspection: Annual, October 31, 1993, 35 hours before
- Departed: 77S, CRESWELL, OR
- Airport: 00S, Mckenzie Bridge State

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 35; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 182 total, 16 in this make and model, 54 as pilot in command, 4 in the last 90 days, 4 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Visibility: 20 statute miles
- Lowest ceiling: none
- 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 (OpenAirDocs).

- [Accident 19931101041549A](https://openairdocs.org/incident/19931101041549A), Nov 1, 1993: Cessna 172M, Mckenzie Bridge, OR, Substantial damage. Came in too high on landing, could not get altitude to abort, hit trees.

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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