Aircraft maintenance and repair services (except factory conversion, factory overhaul, factory rebuilding) · Michigan

Duncan Aviation

Battle Creek, MI · ~666 workers · 3 years of OSHA Injury Tracking Application data.

D
Poor Safety Record
5.8
Avg TCR
4.5
Industry avg
0
Fatalities
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The verdict

Duncan Aviation runs at 128% of its industry's injury rate - more dangerous than the typical Aircraft maintenance and repair services (except factory conversion, factory overhaul, factory rebuilding) workplace, earning a grade D.

Duncan Aviation: 5.8 TCR = 128% of Aircraft maintenance and repair services (except factory conversion, factory overhaul, factory rebuilding) BLS 4.5 · 3y Form 300A (see methodology below)

Duncan Aviation safety composite

Duncan Aviation scores strongest on dart rate (safer than 59% of same-industry peers) and weakest on total case rate (tcr) (safer than 23%), 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).

D

42/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 5.75 per 100 workers

Safer than 23% of industry peers

DART rate
C 0.42 per 100 workers

Safer than 59% 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%).

TCR Δ

−3.9

2016→2024

Duncan Aviation injury rate improved

Duncan Aviation's TCR fell 3.9 from 6.9 in 2016 to 3.1 in 2024. Peak filing year was 2017 at 7.3 TCR. In 2024, DART was 0.07× this establishment's average TCR (severity share of cases).

2016=6.9 · 2017=7.3 · 2024=3.1

OSHA ITA Form 300A scorecard

Establishment book 488190 · Battle Creek, MI ABOVE-IND · MID

Grade D · TCR 5.8 · 128% of ind

  • DART 0.4 DART
  • RANK #17/20
  • PHOTO UTSLK - SALT LAKE AI…
  • BOOK 3y book
  • INJ 100 inj
  • SIZE ~666 FTE

Nearest TCR peer: UTSLK - SALT LAKE AIRPORT (0.0 TCR gap)

Read with this employer → · Industry book → · Michigan employers → · Look up another →

Duncan Aviation in the TCR neighbourhood

Average Total Case Rate among this establishment and nearest same-industry peers

TCR

What this shows Duncan Aviation averages 5.8 TCR (128% of the Aircraft maintenance and repair services (except factory conversion, factory overhaul, factory rebuilding) BLS benchmark).

Source U.S. Department of Labor, OSHA Injury Tracking Application (Form 300A) As of 2026-08-25

Duncan Aviation TCR series: 2016=6.9 · 2017=7.3 · 2024=3.1 · BLS 4.5

Where Duncan Aviation falls in its industry

992 Aircraft maintenance and repai establishments

Safer than 23% of graded establishments in this industry, whose median TCR is 3.2.

More dangerous than peersSafer than peers

Narrower to Michigan alone (the establishments it most directly competes with for workers and contracts): ranked #17 safest of 20 Aircraft maintenance and repai employers in Michigan.

Duncan Aviation (666 employees, TCR 5.8) among 29 same-industry peers, split at the industry median of 67 employees and a TCR of 3.2 2×2 strategic matrix plotting 30 entities by Average employees (X) and Total Case Rate (Y), with a crosshair dividing the plot into four quadrants. Larger & higher-riskSmaller & higher-riskLarger & saferSmaller & safer than peers 05001,0001,500 05101520 Average employees Total Case Rate Duncan Aviation
Duncan Aviation (666 employees, TCR 5.8) among 29 same-industry peers, split at the industry median of 67 employees and a TCR of 3.2

Duncan Aviation has more employees than the Aircraft maintenance and repair services median and a higher injury rate than the industry's median TCR of 3.2. 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 DART Injuries Illnesses Fatalities
2024 3.1 0.4 21 1 0
2017 7.3 4.0 38 6 0
2016 6.9 3.9 41 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

488190 · MI · Battle Creek

992 Aircraft maintenance and repair services (except factory conversion, factory overhaul, factory rebuilding) employers nationwide with a credible TCR · 16,393 rated employers in Michigan with headcount on file · 161 employers in Battle Creek, MI · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel Establishment Metric
NAICS-TCR UTSLK - SALT LAKE AIRPORT 5.8 TCR
NAICS-TCR LASPW9600 LAS - OVERHEAD 5.7 TCR
NAICS-TCR John Bean Technologies Corporation BNA 5.8 TCR
NAICS-TCR West Star Aviation / Grand Junction 5.8 TCR
STATE-SIZE 4003 - TPG/PBM 666 FTE
STATE-SIZE City of Troy 666 FTE
STATE-SIZE CCI Systems 665 FTE
STATE-SIZE Midland Corteva Agrisciences 667 FTE
CITY-NEAR Denso Manufacturing of Michigan 2,702 FTE
CITY-NEAR BRONSON BATTLE CREEK 1,530 FTE
CITY-NEAR Battle Creek HQ Corporate Office 1,118 FTE
CITY-NEAR I I Stanley Co., Inc. 729 FTE
NAT-TCR R C Bowman Inc 5.8 TCR
NAT-TCR Rosen Centre 5.8 TCR
NAT-TCR Store 067 5.8 TCR
NAT-TCR Store 408 5.8 TCR
NAT-SIZE Santa Clara Valley Transportation Authority - River Oaks 666 FTE
NAT-SIZE Cabana Bay Beach Resort 666 FTE
NAT-SIZE Amphastar Pharmaceuticals 666 FTE
NAT-SIZE Grady Memorial Hospital 666 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, 2017, 2016. This is publicly available government data - not a legal determination of workplace conditions.
Data sourced from official public datasets. See our methodology for details.