NTSB
Project Information (as of Apr 21, 2009 08:35)

Project ID(mkey) Investigation Type Mode
67342 Accident  Highway
NTSB Accident ID Occurrence Date Location
HWY08MH012 Jan 06, 2008 Mexican Hat, UT, United States
Docket Information
Docket ID Creation Date Last Modified Public Release Date & Time
45501 May 07, 2008 Feb 19, 2009  02/19/2009 16:10

List of Contents
File ID Filing Date Document Title Pages  Photo 

392457 May 07, 2008Medical Records Information  
392731 May 12, 2008Materials Lab - Factual Report 08-054 window post  
394306 Jun 03, 2008Human Performance - Group Chairman Factual Report 17  
416086 Mar 30, 2009Motor Carrier - Group Chairman Factual Report 11  
394744 Jun 06, 2008Motor Carrier - Attachment A - Arrow Stage Lines Operating Authority  
394745 Jun 06, 2008Motor Carrier - Attachment B - FMCSA Compliance Review of Arrow Stage Lines 16  
415755 Mar 25, 2009Motor Carrier - Attachment B-1 - FMCSA Follow-up Compliance Review 12  
415756 Mar 25, 2009Motor Carrier - Attachment C - CSS Inspection Report 12  
394747 Jun 06, 2008Motor Carrier - Attachment D- USDOT Annual Drug and Alcohol Testing Report  
416831 Apr 09, 2009Motor Carrier - Attachment E - Bus Driver Employment Application with Med Cert and MVR Report 27  
415776 Mar 25, 2009Motor Carrier - Attachment F - Bus Driver Logbook Entries and Work Order 10  
416087 Mar 30, 2009Motor Carrier - Attachment G - FMCSA Post Accident Compliance Review of Arrow Stage Lines  
415933 Mar 28, 2009Vehicles - Group Chairman Factual Report  
394753 Jun 06, 2008Vehicles - Attachment 1 - Utah Highway Patrol Vehicle Report  
394754 Jun 06, 2008Vehicles - Attachment 2 - MCI J-4500 Final Vehicle Record  
394755 Jun 06, 2008Vehicles - Attachment 3 - MCI Maintenance Manual Engineer's Drawing with Dimensions  
394756 Jun 06, 2008Vehicles - Attachment 4 - MCI Maintenance and Parts Manual (portions of Steering section)  
394757 Jun 06, 2008Vehicles - Attachment 5 - Meritor-Wabco ABS Interrogation Report  
394758 Jun 06, 2008Vehicles - Attachment 6 - MCI Operator's Manual (selected pages)  
394765 Jun 06, 2008Veh. Photo #01 - Rear and right side of 2007 MCI bus in final resting position  
394761 Jun 06, 2008Veh. Photo #02 - Right side of MCI bus in final resting position  
394767 Jun 06, 2008Veh. Photo #03 - Rear of MCI bus in final resting position (Note rear brake lights illuminated)  
394769 Jun 06, 2008Veh. Photo #04 - Right rear corner of MCI bus  
394771 Jun 06, 2008Veh. Photo #05 - SmartWheel steering wheel (Note: Steering wheel is turned in an inverted position, with the cruise control switches on the right and engine brake on the left)  
394773 Jun 06, 2008Veh. Photo #06 - Miter box with steering shaft (top center of photo) separated at the input shaft U-joint  
394780 Jun 06, 2008Veh. Photo #07 - U-joint from input shaft removed and photographed (Note: Chipped steel on the inside edge of the toothed flange)  
394783 Jun 06, 2008Veh. Photo #08 - Photo with miter box on the left with intermediate shaft attached. The spare tire truss, upon which the miter box is mounted is bowed up, as evidenced by the crease in the truss that can be seen at the very right edge of the photo,  
394785 Jun 06, 2008Veh. Photo #09 - Crease in spare tire truss near the firewall  
394787 Jun 06, 2008Veh. Photo #10 - Left side of MCI bus in final resting position  
395071 Jun 11, 2008Highway - Group Chairman Factual Report 16  
395072 Jun 11, 2008Highway - Attachment A - UDOT Weather Info  
395075 Jun 11, 2008Highway - Attachment B - Guardrail and Sideslope Review  
415778 Mar 25, 2009Highway Attachment C - Police Report of Accident  
416832 Apr 09, 2009Highway Attachment-D Overall Scene Diagram  
416833 Apr 09, 2009Highway Attachment-E Final Rest Diagram  
416835 Apr 09, 2009Highway Attachment F - Speed Study Overview  
416838 Apr 09, 2009Highway Attachment G - Speed Study Detailed 20  
395081 Jun 11, 2008Hwy. Photo #01 - View of beginning of 4-mile-long downgrade on U.S. Highway 163 at milepost # 33  
395082 Jun 11, 2008Hwy. Photo #02 - View of US163 at MP# 32 looking southwest  
395083 Jun 11, 2008Hwy. Photo #03 - View of US 163 at MP# 31 (Notice steepness of grade)  
395084 Jun 11, 2008Hwy. Photo #04 - View of US 163 at MP# 30 (Average Downgrade from here to accident site is 4 percent)  
395085 Jun 11, 2008Hwy. Photo #05 - View of 5.6 percent downgrade on approach to accident curve (Note the curve warning sign)  
395086 Jun 11, 2008Hwy. Photo #06 - View of guardrail beginning 220 feet into the curve  
395087 Jun 11, 2008Hwy. Photo #07 - Close-up view of guardrail end without safety end-treatment  
395089 Jun 11, 2008Hwy. Photo #08 - View of 2:1 slope on the backside of the guardrail with drainage culvert at the bottom of the slope.  
395090 Jun 11, 2008Hwy. Photo #09 - View of 4-degree 1,641-foot-long curve with guardrail ending at 772 feet into curve  
395091 Jun 11, 2008Hwy. Photo #10 - Continued view of curve with sign for ‘Valley of the Gods” in the background where the foreslope changes to rising terrain  
395092 Jun 11, 2008Hwy. Photo #11 - View of guardrail 61 feet from the end where the rear of the motorcoach came into contact with the rail.  
395093 Jun 11, 2008Hwy. Photo #12 - Closer view of rising terrain on right roadside  
395094 Jun 11, 2008Hwy. Photo #13 - Note the tire marks on the roadside beside the tires of the Parked SUV  
395095 Jun 11, 2008Hwy. Photo #14 - Continued view of tire marks on the beginning of the 3:1 roadside foreslope  
395096 Jun 11, 2008Hwy. Photo #15 - View of curve where it intersects the entrance to the “Valley of the Gods.” Also, note MP marker 29 on the left-hand side  
395099 Jun 11, 2008Hwy. Photo #16 - Note the steepness of the foreslope  
395101 Jun 11, 2008Hwy. Photo #17 - Note the furrowing of the motorcoaches’ left front tire as it curves back toward the white painted edge line.  
395103 Jun 11, 2008Hwy. Photo #18 - Note the rocky landscape on the embankment  
395106 Jun 11, 2008Hwy. Photo #19 - View of rocks in the area where the right rear and roof came down about 27 feet from the road edge.  
395107 Jun 11, 2008Hwy. Photo #20 - View of the accident curve from the opposite direction looking North and East  
395108 Jun 11, 2008Hwy. Photo #21 - View of embankment from the opposite direction  
395113 Jun 11, 2008Hwy. Photo #22 - Additional view of the embankment from the opposite direction (Note the area at the bottom of the photo where the fence lines intersect is the area where the motorcoach came to a final position).  
395118 Jun 11, 2008Hwy. Photo #23 - View of curve from the opposite direction (Note the relatively flat recovery area and rising terrain to the left in photo)  
395121 Jun 11, 2008Hwy. Photo #24 - View of guardrail contact from motorcoaches lug nut covers  
395125 Jun 11, 2008Hwy. Photo #25 - View of motorcoaches lug nut cover on the back-side of the guardrail.  
395131 Jun 11, 2008Hwy. Photo #26 - View of ground scar indicating the bus was oriented at approximately 37 degrees to the roadway  
395135 Jun 11, 2008Hwy. Photo #27 - View of guardrail and 2:1 slope looking at the highway from the valley  
395136 Jun 11, 2008Hwy. Photo #28 - View of the guardrail and 3:1 slope where it intersects the entrance to the “Valley of the Gods.”  
395137 Jun 11, 2008Hwy. Photo #29 - View of displaced concrete cap from guardrail support post in the area where the motorcoach contacted the rail.  
395140 Jun 11, 2008Hwy. Photo #30 - View of concrete cap found near the bottom of the 2:1 slope  
395141 Jun 11, 2008Hwy. Photo #31 - View of motorcoach at the final position with the roof displaced  
395142 Jun 11, 2008Hwy. Photo #32 - Overhead view of curve looking in the opposite direction and the bus path down the embankment  
395143 Jun 11, 2008Hwy. Photo #33 - Note the position of the motorcoach windshield near the top of the embankment  
395144 Jun 11, 2008Hwy. Photo #34 - View of the motorcoach at final position with embankment and curve in the background  
395145 Jun 11, 2008Hwy. Photo #35 - View of motorcoach next to the valley entrance  
395146 Jun 11, 2008Hwy. Photo #36 - Overview of bus with embankment and curve  
395147 Jun 11, 2008Hwy. Photo #37 - View of motorcoaches path on the roadside marked by police cones  
395148 Jun 11, 2008Hwy. Photo #38 - Note the distance from where the guardrail ends to the beginning of the second embankment  
395149 Jun 11, 2008Hwy. Photo #39 - View of the motorcoach travel path marked by cones with bus in the background  
395150 Jun 11, 2008Hwy. Photo #40 - View of guardrail, curve, and first embankment that had a 2:1 slope  
395151 Jun 11, 2008Hwy. Photo #41 - Overhead view of curve, guardrail and embankment  
395152 Jun 11, 2008Hwy. Photo #42 - Opposite direction view of overall scene with complete curve, embankment, and bus at final position  
403935 Oct 22, 2008Data Report: Large Bus Accidents and Injuries in Rural and urban Areas, 2000-2006 17  
403936 Oct 22, 2008Study of Rural Risk Travel Factors for Large Buses: Fatal Accidents, Emergency Response, and Highway Safety Improvements 32  
408815 Jan 02, 2009Data Report Addendum for 2007  
415932 Mar 28, 2009Survival Factors - Group Chairman Factual Report 23  
409451 Jan 09, 2009Survival Factors - Attachment 1 12  
415934 Mar 29, 2009Survival Factors - Attachment 2  
415935 Mar 29, 2009Survival Factors - Attachment 3  
415793 Mar 25, 2009Event Data Recorder Group Chairman's Factual Report 10  
397525 Jul 18, 2008EDR Photo#1 - Photo of subject ECM  
397526 Jul 18, 2008EDR Photo# 2 - Photo of subject DriveCam II VEDR Unit.  
414570 Mar 09, 2009Vehicle Performance - Group Chairman's Vehicle Dynamics Study 10  
414571 Mar 09, 2009Vehicle Performance - Group Chairman's Acceleration Data Study  
416481 Apr 07, 2009Vehicle Performance - Group Chairman's Video Study 13  
415946 Mar 29, 2009Submission - BUSCO, Inc to the National Transportation Safety Board 13  
415947 Mar 29, 2009Submission & Appendix - BUSCO, Inc to the National Transportation Safety Board 11