CHI88LA142

NTSB accident investigation · Aeronca 7BCM · Kenosha, WI · June 25, 1988

Accident · No injuriesLimited investigationFinal report
Date
June 24, 1988, 20:12 local (Jun 25, 1988, 01:12 UTC)
Place
Kenosha, WI
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N84405Aeronca 7BCM
Weather
Visual (VMC) · Day
Status
Completed · report July 10, 1989
Report
Approved by Office Director
FAA report
19880624023809A
Case key
14100

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) - nonmechanicalCruise - normal
Fluid,fuel - starvationCause
Maintenance,service of aircraft/equipment - improperOther maintenance personnelCause
Acft/equip,inadequate compliance determinationOther maintenance personnelCause
Fuel system,cap - incorrectCause
Maintenance,service bulletin/letter - not followedOther maintenance personnelCause
Forced landingDescent - emergency
In flight collision with objectLanding
Object - tree(s)
In flight collision with terrain/waterLanding
Terrain condition - crop

Analysis

The pilot was picking up the aircraft after being serviced when approximately 20 minutes after taking off the engine quit. The pilot was forced to make an emergency landing in a field. During the landing sequence the aircraft contacted some trees at the edge of the field and subsequently collided with the terrain. Investigation revealed that during the servicing of the aircraft a new fuel cap was installed. The new fuel cap was not vented and the mechanic who installed it failed to find out if it needed to be. Service bulletin #47 from the champion aircraft corp. dated 11-8-60 states that all champion and Aeronca aircraft models 11AC, 11BC, 11CC, 7AC, 7BCM, 7CCM, 7DC, and 7EC must have vented fuel caps. It also states if the caps are not vented they must be prior to installation, otherwise proper venting will not occur.

Aircraft

Registration
N84405
Reported as
Aeronca 7BCM
Category
Airplane
Serial number
3100
Airframe hours
2,503
Engine
Continental C-85-12F, 85 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Air Knockers Inc.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · August 9, 1987
Departed
Y78 · Franklin, WI
Destination
UGN · Waukegan, IL

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
43
Certificates
Commercial, Flight instructor
Airplane ratings
Single-engine sea, Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Front
Flight hours
5,175 total · 125 in this make and model · 2,702 as pilot in command · 55 in the last 90 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
230° at 15 knots, gusting 20
Visibility
10 statute miles
Lowest ceiling
None
Temperature
82 °F, dew point -0 °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.