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ME Maine
MD Maryland
MA Massachusetts
MI Michigan
MN Minnesota
MS Mississippi
MO Missouri
MT Montana
NE Nebraska
NV Nevada
NH New Hampshire
NJ New Jersey
NM New Mexico
NY New York
NC North Carolina
ND North Dakota
OH Ohio
OK Oklahoma
OR Oregon
PA Pennsylvania
RI Rhode Island
FRA Guide for Preparing Accident/Incident Reports
Train Accident Appendix C - 1 Cause Codes
APPENDIX C
Train Accident Cause Codes
TRACK, ROADBED AND STRUCTURES
Roadbed
T001 Roadbed settled or soft
T002 Washout/rain/slide/flood/snow/ice damage to track
T099 Other roadbed defects (Provide detailed description in narrative)
Track Geometry
T101 Cross level of track irregular (at joints)
T102 Cross level of track irregular (not at joints)
T103 Deviation from uniform top of rail profile
T104 Disturbed ballast section
T105 Insufficient ballast section
T106 Superelevation improper, excessive, or insufficient
T107 Superelevation runoff improper
T108 Track alignment irregular (other than buckled/sunkink)
T109 Track alignment irregular (buckled/sunkink)
T110 Wide gage (due to defective or missing crossties)
T111 Wide gage (due to defective or missing spikes or other rail fasteners)
T112 Wide gage (due to loose, broken, or defective gage rods)
T113 Wide gage (due to worn rails)
T199 Other track geometry defects (Provide detailed description in narrative)
Rail, Joint Bar and Rail Anchoring
T201 Broken Rail - Bolt hole crack or break
T202 Broken Rail - Base
T203 Broken Rail - Weld (plant)
T204 Broken Rail - Weld (field)
T205 Defective or missing crossties (use code T110 if results in wide gage)
T206 Defective spikes or missing spikes or other rail fasteners (use code T111 if results in wide gage)
T207 Broken Rail - Detail fracture from shelling or head check
T208 Broken Rail - Engine burn fracture
T210 Broken Rail - Head and web separation (outside joint bar limits)
T211 Broken Rail - Head and web separation (within joint bar limits)
T212 Broken Rail - Horizontal split head
T213 Joint bar broken (compromise)
T214 Joint bar broken (insulated)
T215 Joint bar broken (noninsulated)
T216 Joint bolts, broken, or missing
T217 Mismatched rail-head contour
T218 Broken Rail - Piped rail
T219 Rail defect with joint bar repair
T220 Broken Rail - Transverse/compound fissure
APPENDIX C - Continued
Train Accident Appendix C - 2 Cause Codes
FRA Guide for Preparing Accident/Incident Reports
T221 Broken Rail - Vertical split head
T222 Worn rail
T223 Rail Condition - Dry rail, freshly ground rail
T224 Rail defect originating from bond wire attachment (Provide description in narrative)
T299 Other rail and joint bar defects (Provide detailed description in narrative)
Frogs, Switches and Track Appliances
T301 Derail, defective
T302 Expansion joint failed or malfunctioned
T303 Guard rail loose/broken or mislocated
T304 Railroad crossing frog, worn or broken
T305 Retarder worn, broken, or malfunctioning
T306 Retarder yard skate defective
T307 Spring/power switch mechanism malfunction
T308 Stock rail worn, broken or disconnected
T309 Switch (hand operated) stand mechanism broken, loose, or worn
T310 Switch connecting or operating rod is broken or defective
T311 Switch damaged or out of adjustment
T312 Switch lug/crank broken
T313 Switch out of adjustment because of insufficient rail anchoring
T314 Switch point worn or broken
T315 Switch rod worn, bent, broken, or disconnected
T316 Turnout frog (rigid) worn, or broken
T317 Turnout frog (self guarded), worn or broken
T318 Turnout frog (spring) worn, or broken
T319 Switch point gapped (between switch point and stock rail)
T399 Other frog, switch and track appliance defects (Provide detailed description in narrative)
Other Way and Structure
T401 Bridge misalignment or failure