CHI06LA012

NTSB accident investigation · Bellanca 7GCBC · Williams, MN · October 15, 2005

Accident · Serious injuriesLimited investigationFinal report
Date
October 15, 2005, 15:45 local (20:45 UTC)
Place
Williams, MN
Injuries
2 serious
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N2698ZBellanca 7GCBC
Weather
Visual (VMC) · Day
Status
Completed · report May 30, 2006
Report
Approved by Office Director
Parties
Minneapolis, MN FSDO
FAA report
20051015025239A
Case key
62674

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

On this page

Probable cause

The pilot's failure to maintain airspeed which resulted in the airplane stalling. Factors associated with the accident were the low level at which the airplane was maneuvering and the pilot's failure to perform weight and balance calculations prior to the accident.

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 control - in flightApproach
Aircraft weight and balance - not performedPilot in commandFactor
Altitude - lowPilot in commandFactor
Airspeed - inadequatePilot in commandCause
Stall - inadvertentPilot in command
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - water

Analysis

The airplane contacted the water following a loss of control in flight. The pilot reported he was flying over a friend's cabin when the accident occurred. He reported he flew over the cabin and entered a "standard rate" right turn. He reported they circled 180 degrees and when he tried to level the wings he noticed there was no control pressure on the stick. The pilot reported the right wing dropped and he had limited control of the airplane so he reduced the engine power and added flaps prior to the airplane contacting the water. One witness reported seeing the airplane in a turn prior to it rolling to the right and onto its back. This witness stated the airplane "dove straight in from approx 150 feet." A second witness reported seeing the airplane in a turn with 45 to 60 degrees of bank when it rolled over and descended in a vertical attitude. This witness reported the engine was running and he heard a "pop" sound just prior to the airplane contacting the water. The pilot stated during an interview that the flight controls and engine were operating normally during the flight. He also reported that he did not perform any weight and balance calculations prior to the flight. Weight and balance information indicates the airplane was at least 242 pounds over the maximum gross weight.

Factual narrative

On October 15, 2005, at 1545 central daylight time, a Bellanca 7GCBC, N2698Z, collided with the water of Lake of the Woods near Williams, Minnesota, following a loss of control. The pilot and passenger were seriously injured. The airplane was substantially damaged. The 14 Code of Federal Regulations Part 91 personal flight was operating in visual meteorological conditions without a flight plan. The flight originated from the Roseau Municipal Airport (ROX), Billberg, Minnesota, at 1400.

The pilot reported that after taking off they flew over the passenger's hunting property at altitudes ranging from 500 feet above ground level (agl) to 2,500 feet agl. He reported they continued on to a friend's private airstrip, but no one was there so they decided to fly over the friend's cabin. The pilot reported he flew over the cabin and entered a "standard rate" right turn. He reported they circled 180 degrees and when he tried to level the wings he noticed there was no control pressure on the stick. The pilot reported the right wing dropped and he had limited control of the airplane so he reduced the engine power and added flaps prior to the airplane contacting the water.

One witness reported seeing the airplane in a turn prior to it rolling to the right and onto its back. This witness stated the airplane "dove straight in from approx 150 feet." A second witness reported seeing the airplane in a turn with 45 to 60 degrees of bank when it rolled over and descended in a vertical attitude. This witness reported the engine was running and he heard a "pop" sound just prior to the airplane contacting the water.

The pilot stated during an interview that the flight controls and engine were operating normally during the flight. He also reported that he did not perform any weight and balance calculations prior to the flight. The pilot stated he weighted 200 pounds, the passenger weighed approximately 280 pounds and that each fuel tank was approximately three-quarters full (27 gallons). The most current weight and balance information located indicated the gross weight of the airplane was 1,650.0 pounds and the empty weight was 1,250.5 pounds. The useful load was listed as being 399.5 pounds.

Two pieces of wing spar were forwarded to the National Transportation Safety Board for examination. Both pieces were from the right wing. One piece was from the forward spar and the other was from the aft spar. The pieces were examined at both the American Champion Aircraft Company and the United States Department of Agriculture Forest Products Laboratory. Neither of these examinations revealed any pre-existing fractures of the spar pieces.

Aircraft

Registration
N2698Z
Reported as
Bellanca 7GCBC
Category
Airplane
Serial number
1016-78
Airframe hours
760
Engine
Lycoming O-320-A2B, 160 hp, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Matthew L. Knochenmus
Airworthiness certificate
Standard, Normal
Last inspection
Annual · December 1, 2004
Departed
Roseau, MN
Destination
PVT · Williams, MN

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
38
Injuries
Serious
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Without waivers/limitations
Last flight review
April 1, 2005
Seat
Front
Flight hours
208 total · 113 in this make and model · 126 as pilot in command · 11 in the last 90 days · 2 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
350° at 7 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
54 °F, dew point 36 °F
Altimeter
30.12 inHg
Observed at
BDE

FAA reports on this event · 1

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

Other investigations on N2698Z · 1

Matched to the same aircraft by N-number and date.