Mining Incidents

Portable, Crushing Plant/AMI Thunderbird Metal/Non-Metal

Controlled by Kenneth L Seng
Provo, Utah County, UT  ·  Active
MSHA Mine ID: 4202153

Portable, Crushing Plant/AMI Thunderbird has $96K in proposed MSHA penalties and $2K outstanding across 5 contested dockets, plus health sampling and the full incident record.

Watch this mine

Email me when a new MSHA incident is filed at Portable, Crushing Plant/AMI Thunderbird.

Fatalities
0
Total incidents
9
Years on record
1997–2023
Latest incident
Nov 2023
Compliance record
MSHA citations since 2000
176
citations
57
significant & substantial
$96,451
proposed penalties
$75,297
paid to date
78% of proposed penalties paid to date, a $21,154 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
56
inspections on record
827
inspection hours
n/a
citations per 100 inspection hours
This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.
Rate withheld: 827 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Portable, Crushing Plant/AMI Thunderbird has $96K in proposed MSHA penalties and $2K outstanding across 5 contested dockets.

Penalty disposition
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.
$96K
proposed penalties
$78K
current assessed
$75K
paid to date
$2K
outstanding
175 assessments are final orders; 5 contested dockets.
As of the most recent assessment on 2025-04-09.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Quarterly safety rates
Citations per million reported employee-hours. Rates begin in 2000, when MSHA's quarterly employment data starts; earlier incidents are counted but cannot be rate-adjusted. Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
Citations per million employee-hours, as reported to MSHA
Quarter Hours worked Citations S&S Per 1M hrs
2025 Q4 3,518 0 0 0.0
2025 Q3 4,127 0 0 0.0
2025 Q2 5,463 3 0 549.1
2025 Q1 6,941 0 0 0.0
2024 Q4 5,738 1 0 174.3
2024 Q3 5,944 0 0 0.0
2024 Q2 7,149 3 0 419.6
2024 Q1 5,500 13 4 2363.6
Show 96 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 6,346 0 0 0.0
2023 Q3 3,904 3 3 768.4
2023 Q2 3,641 25 6 6866.2
2023 Q1 547 0 0 0.0
2022 Q4 2,061 6 3 2911.2
2022 Q3 2,265 0 0 0.0
2022 Q2 2,889 5 0 1730.7
2022 Q1 2,533 0 0 0.0
2021 Q4 1,752 0 0 0.0
2021 Q3 1,674 0 0 0.0
2021 Q2 556 0 0 0.0
2021 Q1 1,967 0 0 0.0
2020 Q4 1,128 3 1 2659.6
2020 Q3 277 0 0 0.0
2020 Q2 1,908 3 0 1572.3
2020 Q1 372 0 0 0.0
2019 Q4 2,019 0 0 0.0
2019 Q3 237 0 0 0.0
2019 Q2 0 0 0
2019 Q1 477 0 0 0.0
2018 Q4 102 0 0 0.0
2018 Q3 1,946 0 0 0.0
2018 Q2 1,632 0 0 0.0
2018 Q1 2,002 0 0 0.0
2017 Q4 2,037 3 1 1472.8
2017 Q3 3,090 0 0 0.0
2017 Q2 2,990 0 0 0.0
2017 Q1 302 0 0 0.0
2016 Q4 1,390 3 1 2158.3
2016 Q3 941 0 0 0.0
2016 Q2 1,435 0 0 0.0
2016 Q1 610 7 3 11475.4
2015 Q4 0 0 0
2015 Q3 1,800 0 0 0.0
2015 Q2 1,070 0 0 0.0
2015 Q1 1,211 0 0 0.0
2014 Q4 1,586 2 1 1261.0
2014 Q3 2,808 0 0 0.0
2014 Q2 883 0 0 0.0
2014 Q1 1,870 0 0 0.0
2013 Q4 0 0 0
2013 Q3 0 0 0
2013 Q2 290 0 0 0.0
2013 Q1 0 0 0
2012 Q4 3,011 0 0 0.0
2012 Q3 4,907 0 0 0.0
2012 Q2 4,930 0 0 0.0
2012 Q1 5,013 1 0 199.5
2011 Q4 2,349 0 0 0.0
2011 Q3 2,779 3 0 1079.5
2011 Q2 1,443 0 0 0.0
2011 Q1 3,840 0 0 0.0
2010 Q4 3,275 0 0 0.0
2010 Q3 4,457 0 0 0.0
2010 Q2 4,160 16 6 3846.2
2010 Q1 3,802 0 0 0.0
2009 Q4 3,160 0 0 0.0
2009 Q3 5,025 11 7 2189.1
2009 Q2 5,485 0 0 0.0
2009 Q1 7,432 0 0 0.0
2008 Q4 2,305 0 0 0.0
2008 Q3 7,145 0 0 0.0
2008 Q2 5,766 0 0 0.0
2008 Q1 5,009 0 0 0.0
2007 Q4 4,909 1 0 203.7
2007 Q3 4,482 2 0 446.2
2007 Q2 5,937 0 0 0.0
2007 Q1 4,857 0 0 0.0
2006 Q4 5,216 0 0 0.0
2006 Q3 5,473 0 0 0.0
2006 Q2 6,694 0 0 0.0
2006 Q1 4,735 0 0 0.0
2005 Q4 4,358 2 1 458.9
2005 Q3 5,007 0 0 0.0
2005 Q2 6,221 12 2 1929.0
2005 Q1 1,856 0 0 0.0
2004 Q4 2,892 0 0 0.0
2004 Q3 2,615 0 0 0.0
2004 Q2 64 0 0 0.0
2004 Q1 2,057 0 0 0.0
2003 Q4 2,033 11 2 5410.7
2003 Q3 2,787 0 0 0.0
2003 Q2 3,194 0 0 0.0
2003 Q1 282 0 0 0.0
2002 Q4 658 12 5 18237.1
2002 Q3 1,906 0 0 0.0
2002 Q2 119 0 0 0.0
2002 Q1 324 11 5 33950.6
2001 Q4 2,108 0 0 0.0
2001 Q3 2,529 5 2 1977.1
2001 Q2 3,746 0 0 0.0
2001 Q1 3,900 0 0 0.0
2000 Q4 4,689 0 0 0.0
2000 Q3 4,194 1 1 238.4
2000 Q2 3,961 7 3 1767.2
2000 Q1 5,057 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

9 on file

2023 · 3 incidents

November 27, 2023 UT · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON
Kenny Seng Construction, Inc · Fall from machine

Employee was exiting Cat D-9 dozer and slipped from the last step. Employee strained knee when employee landed. This didn't become a reportable incident until 1/22/24.

June 22, 2023 UT · Metal/Non-Metal MACHINERY
Kenny Seng Construction, Inc · Accident type, without injuries

D-9 dozer was pushing material when the operator turned the machine and pushed off the side of the cut. The machine went too close to the edge and the machine rolled off the embankment. It turned over completely to its right side and down a 20' embankment landing on its tracks. The operator was unharmed except a couple of bumps.

January 4, 2023 UT · Metal/Non-Metal greaser, grease man, oiler, lube man, dragline oiler EXPLODING VESSELS UNDER PRESSURE
Kenny Seng Construction, Inc · Struck by flying object

Lube tech was greasing a 966 front end loader when the grease hose ruptured resulting in a pinhole puncture in the employee's RT index finger and possible injection of an unknown amount of grease into the finger. Was sent to ER for evaluation and treatment to ensure no serious damage and to treat for infection.

2022 · 1 incident

March 18, 2022 UT · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)
Kenny Seng Construction, Inc · Struck by... (Not Elsewhere Classified)

EE was replacing a bearing on a track jaw crusher tail pulley. EE was holding a bar while EE's supervisor struck it with a sledge hammer to push the bearing down the shaft. Sledge hit EE on RT index finger causing laceration and fracture of the tip of the finger. Treated with stitches and splint at nearby Workmed office.

2017 · 1 incident

April 29, 2017 UT · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Kenny Seng Construction, Inc · Caught in, under or between a moving and a stationary object

Employee was doing repairs to a drive belt motor. A bolt was removed that allowed the motor to pivot and swing from its position. When the motor swung, it hit employee's hand and smashed ee finger between the motor and the housing. EE was wearing gloves but received a laceration.

2007 · 1 incident

January 25, 2007 UT · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman POWERED HAULAGE
Kenny Seng Construction, Inc · Caught in, under or between a moving and a stationary object

EE was helping the crusher crew lower the stacker belt of our portable crusher. The hydraulics were turned on to lower the stacker belt and the EE rested his hand in an area of the stacker belt that he shouldn't have put his hand. A piece of metal on the stacker belt came down on his right middle & pointer finger, which smashed, lacerated and fractured parts of his fingers.

2003 · 2 incidents

June 27, 2003 UT · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Kenny Seng Construction, Inc · Struck by... (Not Elsewhere Classified)

EE WAS CUTTING RUBBER BELTING, AND WHILE DOING SO HE SLIPPED AND CUT HIS FINGERS. CASE INVOLVED STITCHES. MODIFIED WORK.

June 1, 2003 UT · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Kenny Seng Construction, Inc · Over-exertion (Not Elsewhere Classified)

EE WAS SHOVELING DIRT & ROCKS FROM UNDER A CONVEYOR BELT. WHEN HE WENT TO STAND UP STRAIGHT, HE COULDN'T AND HE FELT AN INSTANT SHARP PAIN IN HIS BACK WHEN HE TRIED TO STAND UP. CASE INVOLVED MODIFIED WORK.

1997 · 1 incident

November 13, 1997 UT · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator POWERED HAULAGE
Kenny Seng Construction, Inc · Struck against a moving object

WAS SMOOTHING A HAULAGE ROAD WHEN THE TEETH ON HIS BUCKET HIT A LARGE ROCK, THE BACK TIRES LIFTED IN THE AIR AND SLAMMEDF DOWN. THIS CAUSED A BACK STRAIN AND A FRACTURE IN A BONE IN BACK.

For insurers, brokers, and safety consultants

The full compliance file on Portable, Crushing Plant/AMI Thunderbird

A dated report covering the 26-year penalty trail, line-item violation pattern, contest and docket posture, rate-normalized peer benchmark, and full fatality history. Delivered as a PDF with the underlying data as CSV.