Aircraft Accident/Incident Report

Lake In The Hills, Illinois 60102
Thursday, May 3, 2012 15:15 CDT

NTSB Narrative Summary Released at Completion of Accident

The commercial pilot and a flight instructor were in the traffic pattern conducting touch-and-go takeoffs and landings on runway 26. A witness reported seeing the airplane in a steep bank as it turned from the base leg of the traffic pattern to the final approach leg. The ground scars and damage to the airplane were consistent with an aerodynamic stall/spin at the time of impact. The wind at the time of the accident was reported from 220 degrees between 11 and 22 knots. The wind encountered on the left base turn to final could result in overshooting the final approach path. Most likely, the pilot was attempting to compensate for overshooting the final approach path and increased the bank angle to bring the airplane back on course. No preaccident mechanical malfunctions or failures were found that would have precluded normal operation. Investigators were unable to determine who was flying the airplane at the time of the accident; however, the commercial pilot did not hold a current medical certificate and thus was ineligible to have been acting as pilot-in-command.

NTSB Probable Cause Narrative

The pilot's excessive bank angle while on approach to land, which resulted in an inadvertent aerodynamic stall and spin.

Event Information

Type of Event Accident
Event Date 5/3/2012
Event Day of the Week Thursday
Time of Event 1515
Event Time Zone Central Daylight Time
Event City Lake in the Hills
Event State ILLINOIS
Event Country --
Zipcode of the event site 60102
Event Date Year 2012
Event Date Month 5
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 421227N
Event Location Longitude 0881832W
Event Location Airport --
Event Location Nearest Airport ID --
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness --
Investigator's weather source Witness
Time of the weather observation 1452 Central Daylight Time
Direction of event from weather observation facility (degrees) 180
Weather Observation Facility ID KDPA
Elevation of weather observation facility 758
Distance of event from weather observation facility (units?) 18
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height 3600
Sky/Lowest/Cloud Conditions Few
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 28
Dew Point at event time (in degress fahrenheit) 18
Wind Direction (degrees magnetic) 200
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 13
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.85
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal 2
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 30710
NTSB Notification Source FAA AGL ROC
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Nov 21 2012 11:05AM
User who most recently changed record bowl
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N176Q
NTSB Number CEN12FA271
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name BEECH
Aircraft Model S35
Aircraft Series Identifier --
Aircraft Serial Number D-7427
Certified Max Gross Weight --
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 4
Number of Engines 1
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Jun 1 2011 12:00AM
Airframe hours since last inspection --
Airframe Hours 4067
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name SAN FILIPPO PAUL
Aircraft Owner Street Address --
Aircraft Owner City GRAYSLAKE
Aircraft Owner State IL
Aircraft Owner Country USA
Aircraft Owner Zipcode 60030-9639
Operator is an individual? Yes
Operator Name SAN FILIPPO PAUL
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City GRAYSLAKE
Operator State IL
Operator Country USA
Operator Zip code 60030-9639
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation --
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) Instructional
Second Pilot on Board Yes
Departure Point Same as Event Yes
Departure Airport Code --
Departure City Lake in the Hills
Departure State IL
Departure Country USA
Departure Time --
Departure Time Zone CDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code --
Destination City Lake in the Hills
Destination State IL
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Oct 30 2012 9:41AM
User who most recently changed record kaij
Since inspection or accident Last Inspection
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --