Aircraft engine and engine parts (except carburetors, pistons, piston rings, valves) manufacturing · Ohio

Mt R&O, LLC

Name: Mt R&O, LLC Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Cincinnati, OH · ~21 workers · 6 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

B
Good Safety Record: 2.5
Avg TCR: 3.3
Industry avg: 0
Fatalities

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The verdict

Mt R&O, LLC runs at 75% of its industry's injury rate - safer than the typical Aircraft engine and engine parts (except carburetors, pistons, piston rings, valves) manufacturing workplace, earning a grade B.

Mt R&O, LLC: 2.5 TCR = 75% of Aircraft engine and engine parts (except carburetors, pistons, piston rings, valves) manufacturing BLS 3.3 · 6y Form 300A (see methodology below)

Mt R&O, LLC safety composite

Mt R&O, LLC scores strongest on dart rate (safer than 81% of same-industry peers) and weakest on total case rate (tcr) (safer than 32%), blended into one 0-100 breakdown against same-industry peers. A missing measure drops out and redistributes its weight rather than deflating the score. This is a per-dimension breakdown, distinct from the single letter grade above it (which weights TCR alone against the BLS industry benchmark).

54/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): F 2.47 per 100 workers

Safer than 32% of industry peers
DART rate: B 0 per 100 workers

Safer than 81% of industry peers
Fatalities: D 0

Safer than 50% of industry peers

Benchmarked live against every credibly-rated employer in the same NAICS industry code in the current OSHA extract (a segment must have at least 8 rated peers to benchmark). Not a legal or compliance determination; PlainSafetyScore's own weighting (TCR 40%, DART 35%, fatalities 25%).

Mt R&O, LLC held a steady TCR band

Mt R&O, LLC's TCR held near 0.0 from 0.0 in 2018 to 0.0 in 2024. Peak filing year was 2019 at 10.5 TCR. In 2024, DART was 0× this establishment's average TCR (severity share of cases).

2018=0.0 · 2019=10.5 · 2021=0.0 · 2022=0.0 · 2023=4.3 · 2024=0.0

OSHA ITA Form 300A scorecard

Establishment book 336412 · Cincinnati, OH AT/BELOW-IND · SMALL

Grade B · TCR 2.5 · 75% of ind

DART 0.0 DART
RANK #40/46
PHOTO Power Flow Systems
BOOK 6y book
INJ 3 inj
SIZE ~21 FTE

Nearest TCR peer: Power Flow Systems (0.0 TCR gap)

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This site

2.5
Power Flow Sys

2.5
Enginetics Cor

2.5
Covington Airc

2.5
Jet Aviation S

2.5

What this shows Mt R&O, LLC averages 2.5 TCR (75% of the Aircraft engine and engine parts (except carburetors, pistons, piston rings, valves) manufacturing BLS benchmark).

Mt R&O, LLC TCR series: 2018=0 · 2019=10.5 · 2021=0 · 2022=0 · 2023=4.3 · 2024=0 · BLS 3.3

Where Mt R&O, LLC falls in its industry

366 Aircraft engine and engine par establishments

Safer than 32% of graded establishments in this industry, whose median TCR is 1.6.

Grade B

More dangerous than peersSafer than peers

Narrower to Ohio alone (the establishments it most directly competes with for workers and contracts): ranked #40 safest of 46 Aircraft engine and engine par employers in Ohio.

Mt R&O, LLC (21 employees, TCR 2.5) among 29 same-industry peers, split at the industry median of 155 employees and a TCR of 1.6

Mt R&O, LLC has fewer employees than the Aircraft engine and engine parts (except median and a higher injury rate than the industry's median TCR of 1.6. Workforce size and injury rate do not always move together within the same industry -- some of its smaller peers run higher rates than its larger ones, and vice versa.

Year-by-Year Safety Data

Year	TCR	Injuries
2024	0.0	0
2023	4.3	1
2022	0.0	0
2021	0.0	0
2019	10.5	2
2018	0.0	0

OSHA ITA peer cross-reference

Establishment peer ledger

336412 · OH · Cincinnati

366 Aircraft engine and engine parts (except carburetors, pistons, piston rings, valves) manufacturing employers nationwide with a credible TCR · 22,650 rated employers in Ohio with headcount on file · 1,513 employers in Cincinnati, OH · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel	Establishment	Place	Metric
NAICS-TCR	Power Flow Systems	DAYTONA BEACH, FL	2.5 TCR
NAICS-TCR	Enginetics Corporation	HUBER HEIGHTS, OH	2.5 TCR
NAICS-TCR	Covington Aircraft Radial Division	OKMULGEE, OK	2.5 TCR
NAICS-TCR	Jet Aviation Specialists LLC	MIAMI, FL	2.5 TCR
STATE-SIZE	Grand Republic	EDGERTON	21 FTE
STATE-SIZE	Hog and Maintenance	FORT RECOVERY	21 FTE
STATE-SIZE	Case Farms Hatchery	STRASBURG	21 FTE
STATE-SIZE	Case Farms winesburg hatchery	STRASBURG	21 FTE
CITY-NEAR	Cincinnati Children's Hospital Medical Center	Cincinnati	17,011 FTE
CITY-NEAR	Cincinnati Operations	Cincinnati	10,239 FTE
CITY-NEAR	Supply Chain : Evendale, OH	Cincinnati	7,118 FTE
CITY-NEAR	Supply Chain Evendale OH	Cincinnati	6,400 FTE
NAT-TCR	Territo Electric, Inc.	Ocoee, FL	2.5 TCR
NAT-TCR	Asbury Facility	Erie, PA	2.5 TCR
NAT-TCR	CLARO / PRT - CAC Plaza Guayama	Guayama, PR	2.5 TCR
NAT-TCR	Kendall Construction, Inc.	Topeka, KS	2.5 TCR
NAT-SIZE	Unifab LLC	Honolulu, HI	21 FTE
NAT-SIZE	Denver City, TX	Denver City, TX	21 FTE
NAT-SIZE	Farm Service Cooperative Irwin Location	Irwin, IA	21 FTE
NAT-SIZE	Zeal Optics, Inc.	Boulder, CO	21 FTE

Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →

Data Source: OSHA Injury Tracking Application (ITA), mandatory establishment-level injury/illness reports. Grades compare employer Total Case Rate (TCR) to BLS IIF industry benchmarks. Data covers years reported by this establishment: 2024, 2023, 2022, 2021, 2019, 2018. This is publicly available government data - not a legal determination of workplace conditions.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from official public datasets. See our methodology for details.