SEA95LA041

NTSB accident investigation · Cessna 177 · Auburn, WA · January 22, 1995

Accident · Minor injuriesLimited investigationFinal report
Date
January 22, 1995, 12:00 local (20:00 UTC)
Place
Auburn, WA
Injuries
2 minor, 1 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N29598Cessna 177
Weather
Visual (VMC) · Day
Status
Completed · report June 29, 1995
Report
Approved by Office Director
FAA report
19950122000719A
Case key
42102

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

Carburetor obstruction due to ingestion of part of the induction air ducting. A factor was the lack of suitable terrain for the forced landing.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of engine powerDescent - normal
Induction air ducting - ingestedCause
Fuel system,carburetor - obstructedCause
Forced landingEmergency descent/landing
On ground/water encounter with terrain/waterEmergency descent/landing
Terrain condition - none suitableFactor

Analysis

Witnesses observed black smoke from the aircraft after takeoff. The aircraft sustained a loss of power and the pilot performed a forced landing into an open field. During the landing the aircraft encountered soft terrain and was substantially damaged. During investigation, a 1/2' by 1 1/2' piece of neoprene induction air ducting was found ingested in the carburetor, causing obstruction of the carburetor venturi.

Factual narrative

On January 22, 1995, approximately 1140 Pacific standard time, a Cessna 177, N29598, sustained substantial damage during a forced landing after takeoff from Auburn Municipal Airport, Auburn, Washington. The private pilot and his daughter sustained minor injuries; his wife was uninjured. The flight, conducted under 14 CFR 91, was not under a flight plan and its destination was Tacoma Narrows airport, Tacoma, Washington, where the aircraft was to be fueled for a longer flight. There was no fire and no report of an ELT functioning.

The pilot stated that after takeoff to the south, at an altitude of two or three hundred feet, the aircraft sustained a loss of power and he initiated a forced landing into an open field, sustaining substantial damage due to soft terrain. The pilot stated that he heard noises indicating that the power loss was due to mechanical reasons. A witness stated that he saw black smoke from the aircraft prior to ground impact.

Investigators found a 1/2" by 1 1/2" piece of neoprene intake air box ducting in the carburetor throat, jammed in the venturi.

Aircraft

Registration
N29598
Reported as
Cessna 177
Category
Airplane
Serial number
17700983
Engine
Lycoming O-360-A1A, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Marshall F. Warner
Airworthiness certificate
Standard, Normal
Last inspection
Annual · January 8, 1994
Departed
S50
Destination
TIW · Tacoma, WA
Airport
S50 · Auburn Municipal, runway 16, 3,400 × 75 ft, asphalt

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
56
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
230 total · 149 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
70° at 7 knots
Visibility
40 statute miles
Lowest ceiling
None
Temperature
55 °F, dew point 27 °F
Altimeter
29.00 inHg
Observed at
SEA, 10 nm away

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.