Rock County Airport
Aircraft Accident/Incident Report

Janesville, Wisconsin 52545
Thursday, September 17, 1998 11:50 CDT

NTSB Narrative Summary Released at Completion of Accident

The pilot reported the airplane started to sink while he was on short final. He applied power, but the airplane continued to descend until contacting the terrain short of the approach end of the runway.

NTSB Probable Cause Narrative

the pilot's failure to land the airplane at a proper touchdown point on the runway. A factor was the excessive rate of descent which developed on final approach.

Event Information

Type of Event Accident
Event Date 9/17/1998
Event Day of the Week Thursday
Time of Event 1150
Event Time Zone Central Daylight Time
Event City JANESVILLE
Event State WISCONSIN
Event Country --
Zipcode of the event site 52545
Event Date Year 1998
Event Date Month 9
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport ROCK COUNTY
Event Location Nearest Airport ID JVL
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation 808
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1150 Central Daylight Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID JVL
Elevation of weather observation facility 808
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 4000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) --
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 110
Variable Wind Indicator Unknown
Wind Speed (knots) 6
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 924
NTSB Notification Source --
NTSB Notification Date Sep 17 1998 12:00AM
NTSB Notification Time 1234
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 11 2000 11:45AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N4749Z
NTSB Number CHI98LA350
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Piper
Aircraft Model PA-22-108
Aircraft Series Identifier PA-22-108
Aircraft Serial Number 22-8305
Certified Max Gross Weight 2600
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Oct 1 1997 12:00AM
Airframe hours since last inspection 40
Airframe Hours 2840
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name PHILIP A. CAPONE
Aircraft Owner Street Address 111 E. LONG GROVE
Aircraft Owner City BARRINGTON
Aircraft Owner State IL
Aircraft Owner Country
Aircraft Owner Zipcode 60010
Operator is an individual? --
Operator Name
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address
Operator City
Operator State
Operator Country
Operator Zip code
Operator Code
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Personal
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code 06C
Departure City SCHAUMBURG
Departure State IL
Departure Country
Departure Time 1100
Departure Time Zone CDT
Destination Same as Local Flt crash at destination city
Destination Airport Code JVL
Destination City
Destination State
Destination Country
Specific Phase of Flight Landing
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:34AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 13
Runway Length 5396
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --