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Accident Report Detail

Crash of Cessna 500, N113SH, Following an In-Flight Collision with Large Birds

Executive Summary

‚ÄčOn March 4, 2008, about 1515 central standard time, a Cessna 500, N113SH, registered to Southwest Orthopedic & Sports Medicine Clinic PC of Oklahoma City, Oklahoma, entered a steep descent and crashed about 2 minutes after takeoff from Wiley Post Airport (PWA) in Oklahoma City. None of the entities associated with the flight claimed to be its operator. The pilot, the second pilot, and the three passengers were killed, and the airplane was destroyed by impact forces and postcrash fire. The flight was operated under 14 Code of Federal Regulations (CFR) Part 91 with an instrument flight rules flight plan filed. Visual meteorological conditions prevailed. The flight originated from the ramp of Interstate Helicopters (a 14 CFR Part 135 on-demand helicopter operator at PWA) and was en route to Mankato Regional Airport, Mankato, Minnesota, carrying company executives who worked for United Engines and United Holdings, LLC.

The safety issues discussed in this report focus on airframe certification standards for bird strikes, inadequate Federal Aviation Administration (FAA) enforcement of wildlife hazard assessment requirements for airports located near wildlife attractants, the lack of published information regarding aircraft operational strategies for pilots to minimize bird-strike damage to aircraft, and inadequate FAA detection of and intervention in improper charter operations. Safety recommendations concerning these issues are addressed to the FAA.

Probable Cause

‚ÄčThe National Transportation Safety Board determines that the probable cause of this accident was airplane wing-structure damage sustained during impact with one or more large birds (American white pelicans), which resulted in a loss of control of the airplane.

Accident Location: Oklahoma City , OK    
Accident Date: 3/4/2008
Accident ID: DFW08MA076

Date Adopted: 7/28/2009
NTSB Number: AAR-09-05
NTIS Number: PB2009-910405