FTW87FA190

NTSB accident investigation · Cessna 206G · Georgetown, TX · August 7, 1987

Accident · No injuriesField investigationFinal report
Date
August 7, 1987, 01:45 local (06:45 UTC)
Place
Georgetown, TX
Injuries
3 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N8873QCessna 206G
Weather
Visual (VMC) · Night/dark
Status
Completed · report January 11, 1989
Report
Approved by Office Director
FAA report
19870807043439A
Case key
22266

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

On this page

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 power(total) - mech failure/malfCruise - normal
Eng assembly,crankshaft counterweights/vib damper - vibrationCause
Engine assembly,camshaft - failure,totalCause
Forced landingDescent - emergency
Altitude - inadequate
Stall/mush - intentionalPilot in commandFactor
In flight collision with objectDescent - emergency
Terrain condition - none suitableFactor
Object - tree(s)Factor
Light condition - nightFactor
Fuselage,seat - not installed

Analysis

Teardown of the aircraft engine revealed that the engine counterweight vibration damper assembly was out of tolerance. This allowed excessive engine vibration which resulted in failure of the camshaft drive gear and total engine failure. The pilot executed a forced landing into a wooded area. Altitude would not allow him to reach the Georgetown airport and the pilot stated that he stalled the aircraft and allowed it to settle into the trees to minimize impact speed. The aircraft was equipped with one passenger seat and two paesengers were on board the aircraft at impact. The passenger jumpseat normally in the rear of the aircraft had been removed. The second passenger was sitting in the cargo area behind the crew compartment.

Aircraft

Registration
N8873Q
Reported as
Cessna 206G
Category
Airplane
Serial number
U20603560
Airframe hours
5,500
Engine
Continental IO-520-F, 300 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 135
Operator
Air Express,Inc., doing business as Express Air,Inc.
Registered owner
Air Express, Inc.
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · July 7, 1987 · 75 hours before
Departed
AUS · Austin, TX
Destination
ACT · Waco, TX
Airport
TS01 · Georgetown, runway 36, 4,100 × 100 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
30
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
1,737 total · 730 in this make and model · 1,477 as pilot in command · 266 in the last 90 days

Weather

Conditions
Visual (VMC) · Night/dark
Wind
190° at 7 knots
Visibility
12 statute miles
Lowest ceiling
None
Temperature
81 °F, dew point 73 °F
Altimeter
29.00 inHg
Observed at
AUS, 27 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.