Rochester, MN —
OSHA Injury Report: Tonna Mechanical, Inc.
Injury · Days away from work
At a glance
On , an injury at Tonna Mechanical, Inc. in Rochester, MN 559010831 resulted in days away from work. Employee was commercial HVACR Technician in plumbing and heating contractors.
Where did this happen?
- Establishment
- Tonna Mechanical, Inc.
- Parent company
- Tonna Mechanical, Inc.
- Street
- 1440 Industrial Dr NW
- City
- Rochester
- State
- MN
- ZIP
- 559010831
- On-site location
- Residential jobsite – exterior
What was the outcome?
- Outcome
- Days away from work (code 2)
- Type
- Injury (code 1)
- Days away from work
- 1
- Days restricted or transferred
- 10
Before the incident
The employee was lifting and moving an AC condensing unit during installation activities.
What happened
While lifting and repositioning the AC condensing unit the employee experienced pain in the lower back.
Injury or illness
Lower back strain.
Object or substance involved
AC condensing unit.
Summary line
Lower back strain from moving AC condensing unit
Employee and industry
- Job description
- Commercial HVACR Technician
- SOC code
- 49-9021 — Heating, Air Conditioning, and Refrigeration Mechanics and Inst
- NAICS code
- 238220 — Plumbing and heating contractors
- NAICS vintage
- 2022
- Avg employees
- 91
- Total hours worked
- 162038
- EIN
- 411269382
- Establishment ID
- 1436326
- Employer case #
- 5
When (timing detail)
- Date of incident
- Shift started
- 7:18
- Filing year
- 2025
- Submitted
- 22JAN26:17:19:00
Source
Data from OSHA ITA Form 300/301 electronic submissions, filing year 2025. ITA Case Detail records are establishment-reported submissions, not OSHA inspections — no per-record IMIS deep link exists.