Individually Owned: 150,657
Corporate Owned: 137,281
Evansville Regional Airport
Aircraft Accident/Incident Report
Evansville, Indiana 47725
Wednesday, February 9, 2011 13:30 CST
NTSB Narrative Summary Released at Completion of Accident
During the initial climb after takeoff, the inner ply of the co-pilot’s windshield in the pressurized turboprop airplane shattered. The remainder of the windshield was not shattered. The pilot diverted and landed without further incident. Microscopic examination of the windshield's crack initiation area revealed an expanding triangular or v-shaped area emanating from a single point, consistent with a peel chip. The peel chip-type fracture of the inner ply of glass has historically been an issue on the King Air windshield and the window manufacturer made a product improvement to it. The windshield improvement incorporated a urethane layer between the vinyl interlayer and the inner glass ply that relieves stresses on the inner glass ply and prevents peel chip fractures. This airplane did not have the improved windshield. To date, there has not been a peel chip type fracture with the improvement in place.
NTSB Probable Cause Narrative
The peel chip-type failure of the co-pilot's window during initial climb.
Event Information
| Type of Event | Incident |
| Event Date | 2/9/2011 |
| Event Day of the Week | Wednesday |
| Time of Event | 1330 |
| Event Time Zone | Central Standard Time |
| Event City | Evansville |
| Event State | INDIANA |
| Event Country | -- |
| Zipcode of the event site | 47725 |
| Event Date Year | 2011 |
| Event Date Month | 2 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 390412N |
| Event Location Longitude | 0874012W |
| Event Location Airport | Evansville Regional Airport |
| Event Location Nearest Airport ID | EVV |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | 62 |
| Degrees magnetic from airport | -- |
| Airport Elevation | 418 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1254 Central Standard Time |
| Direction of event from weather observation facility (degrees) | 174 |
| Weather Observation Facility ID | EVV |
| Elevation of weather observation facility | 418 |
| Distance of event from weather observation facility (units?) | 62 |
| Time Zone of the weather observation | CST |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 5500 |
| Lowest Non-Ceiling Height | -- |
| Sky/Lowest/Cloud Conditions | -- |
| Sky Condition for Lowest Ceiling | Broken |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | 10 |
| Air Temperature at event time (in degrees celsius) | -7 |
| Dew Point at event time (in degress fahrenheit) | -14 |
| Wind Direction (degrees magnetic) | 310 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 10 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30.35 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | KEVV 091754Z 31005KT 10SM BKN055 M07/M14 A3035 |
| Event Highest Injury | None |
| On Ground, Fatal Injuries | -- |
| On Ground, Minor Injuries | -- |
| On Ground, Serious Injuries | -- |
| Injury Total Fatal | -- |
| Injury Total Minor | -- |
| Injury Total None | 4 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 29087 |
| 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 | Oct 12 2011 6:21PM |
| User who most recently changed record | male |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N2057C |
| NTSB Number | CEN11IA180 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | IFR |
| Flight plan Was Activated? | Yes |
| Damage | Minor |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Hawker Beechcraft Corp. |
| Aircraft Model | C90 |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | LJ-827 |
| Certified Max Gross Weight | 10500 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | -- |
| Aircraft is a homebuilt? | No |
| Flight Crew Seats | 2 |
| Cabin Crew Seats | -- |
| Passenger Seats | 5 |
| Total number of seats on the aircraft | 7 |
| Number of Engines | 2 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | Continuous Airworthiness |
| Date of Last Inspection | Jan 5 2011 12:00AM |
| Airframe hours since last inspection | -- |
| Airframe Hours | 8655 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | C91 |
| Aircraft Owner Name | N2057C LLC |
| Aircraft Owner Street Address | 2651 S MELLONVILLE AVE |
| Aircraft Owner City | SANFORD |
| Aircraft Owner State | FL |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 32773-9306 |
| Operator is an individual? | No |
| Operator Name | Aero Sim Flight Academy |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | -- |
| Operator City | Sanford |
| Operator State | FL |
| Operator Country | USA |
| Operator Zip code | 32773 |
| 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 | No |
| Departure Airport Code | CMI |
| Departure City | Champaign/Urban |
| Departure State | IL |
| Departure Country | USA |
| Departure Time | 1200 |
| Departure Time Zone | CST |
| Destination Same as Local Flt | -- |
| Destination Airport Code | SFB |
| Destination City | Orlando |
| Destination State | FL |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Oct 11 2011 12:54PM |
| User who most recently changed record | male |
| 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 | -- |