Aviation Maintenance and Repair Services · Tennessee

CHA

Chattanooga, TN · ~237 workers · 5 years of OSHA Injury Tracking Application data.

B
Good Safety Record
2.5
Avg TCR
4.5
Industry avg
0
Fatalities
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The verdict

CHA runs at 56% of its industry's injury rate - safer than the typical Aviation Maintenance and Repair Services workplace, earning a grade B.

CHA: 2.5 TCR = 56% of Aviation Maintenance and Repair Services BLS 4.5 · 5y Form 300A (see methodology below)

CHA safety composite

CHA scores strongest on total case rate (tcr) (safer than 61% of same-industry peers) and weakest on dart rate (safer than 22%), 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

45/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
C 2.52 per 100 workers

Safer than 61% of industry peers

DART rate
F 4.04 per 100 workers

Safer than 22% 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%).

Rising injury rate

CHA: 2.2 → 4.9 TCR

Peak year 2018 @ 5.5 TCR · DART/TCR 1.6× in 2024

CHA's TCR rose 2.8 from 2.2 in 2017 to 4.9 in 2024. Peak filing year was 2018 at 5.5 TCR. In 2024, DART was 1.6× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 488190 · Chattanooga, TN AT/BELOW-IND · MID

Grade B · TCR 2.5 · 56% of ind

  • DART 4.0 DART
  • RANK #5/17
  • PHOTO Lockheed Martin Corp…
  • BOOK 5y book
  • INJ 33 inj
  • SIZE ~237 FTE

Nearest TCR peer: Lockheed Martin Corporation US MD Pax River Standley Rd (1431) (0.0 TCR gap)

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

CHA in the TCR neighbourhood

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

TCR

What this shows CHA averages 2.5 TCR (56% of the Aviation Maintenance and Repair Services BLS benchmark).

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

CHA TCR series: 2017=2.2 · 2018=5.5 · 2022=0 · 2023=0 · 2024=4.9 · BLS 4.5

Where CHA falls in its industry

992 Aviation Maintenance and Repai establishments

Safer than 61% of graded establishments in this industry, whose median TCR is 3.2.

More dangerous than peersSafer than peers

Narrower to Tennessee alone (the establishments it most directly competes with for workers and contracts): ranked #5 safest of 17 Aviation Maintenance and Repai employers in Tennessee.

CHA (237 employees, TCR 2.5) 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 CHA
CHA (237 employees, TCR 2.5) among 29 same-industry peers, split at the industry median of 67 employees and a TCR of 3.2

CHA has more employees than the Aviation Maintenance and Repair Services median and a lower 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 4.9 4.0 22 0 0
2023 0.0 0.0 0 0 0
2022 0.0 0.0 0 0 0
2018 5.5 4.8 8 0 0
2017 2.2 1.5 3 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

488190 · TN · Chattanooga

992 Aviation Maintenance and Repair Services employers nationwide with a credible TCR · 10,743 rated employers in Tennessee with headcount on file · 695 employers in Chattanooga, TN · 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 Lockheed Martin Corporation US MD Pax River Standley Rd (1431) 2.5 TCR
NAICS-TCR Friedkin Aviation, Inc. 2.5 TCR
NAICS-TCR 1524-9853 EWR - MUNICH 2.5 TCR
NAICS-TCR JBT AeroTech Corporation Airport Services PHX 2.5 TCR
STATE-SIZE Bell & Associates Construction, LLC 237 FTE
STATE-SIZE Jones Plastic & Engineering d/b/a Camden Plastics 237 FTE
STATE-SIZE Cupples J & J Co. Inc 237 FTE
STATE-SIZE Wegmann Automotive USA, Inc - TN 237 FTE
CITY-NEAR CHATTANOOGA COKE 8,650 FTE
CITY-NEAR CHATTANOOGA FOOD 8,650 FTE
CITY-NEAR USXpress 7,385 FTE
CITY-NEAR Cardiology GB 6,606 FTE
NAT-TCR Spirit Aerosystems Oklahoma 2.5 TCR
NAT-TCR Bunn Excavating Inc 2.5 TCR
NAT-TCR Fabrication Specialties Inc. 2.5 TCR
NAT-TCR 1983 Countryside 2.5 TCR
NAT-SIZE Amazon.com Services LLC - HIL3 237 FTE
NAT-SIZE Starbucks Company York Roasting Plant 237 FTE
NAT-SIZE Westchester Medical Center EVS 237 FTE
NAT-SIZE The Road Home Headquarters 237 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, 2018, 2017. 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.