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

Building 4

Manchester, CT · ~89 workers · 6 years of OSHA Injury Tracking Application data.

D
Poor Safety Record
4.8
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

Building 4 runs at 146% of its industry's injury rate - more dangerous than the typical Aircraft engine and engine parts (except carburetors, pistons, piston rings, valves) manufacturing workplace, earning a grade D.

Building 4: 4.8 TCR = 146% of Aircraft engine and engine parts (except carburetors, pistons, piston rings, valves) manufacturing BLS 3.3 · 6y Form 300A (see methodology below)

Building 4 safety composite

Building 4 scores strongest on fatalities (safer than 50% of same-industry peers) and weakest on dart rate (safer than 4%), 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).

F

18/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 4.81 per 100 workers

Safer than 9% of industry peers

DART rate
F 5.2 per 100 workers

Safer than 4% 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

Building 4: 3.1 → 9.1 TCR

Peak year 2021 @ 9.1 TCR · DART/TCR 1.08× in 2021

Building 4's TCR rose 6.0 from 3.1 in 2016 to 9.1 in 2021. In 2021, DART was 1.08× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 336412 · Manchester, CT ABOVE-IND · SMALL

Grade D · TCR 4.8 · 146% of ind

  • DART 5.2 DART
  • RANK #44/54
  • PHOTO Thermal Structures I…
  • BOOK 6y book
  • INJ 21 inj
  • SIZE ~89 FTE

Nearest TCR peer: Thermal Structures Inc. (0.0 TCR gap)

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

Building 4 in the TCR neighbourhood

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

TCR

What this shows Building 4 averages 4.8 TCR (146% of the Aircraft engine and engine parts (except carburetors, pistons, piston rings, valves) manufacturing BLS benchmark).

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

Building 4 TCR series: 2016=3.1 · 2017=1.1 · 2018=5 · 2019=6.4 · 2020=4.1 · 2021=9.1 · BLS 3.3

Where Building 4 falls in its industry

366 Aircraft engine and engine par establishments

Safer than 9% of graded establishments in this industry, whose median TCR is 1.6.

More dangerous than peersSafer than peers

Narrower to Connecticut alone (the establishments it most directly competes with for workers and contracts): ranked #44 safest of 54 Aircraft engine and engine par employers in Connecticut.

Building 4 (89 employees, TCR 4.8) among 29 same-industry peers, split at the industry median of 155 employees and a TCR of 1.6 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 02,0004,0006,0008,000 0246 Average employees Total Case Rate Building 4
Building 4 (89 employees, TCR 4.8) among 29 same-industry peers, split at the industry median of 155 employees and a TCR of 1.6

Building 4 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 DART Injuries Illnesses Fatalities
2021 9.1 5.2 7 0 0
2020 4.1 2.7 3 0 0
2019 6.4 4.8 4 0 0
2018 5.0 0.0 3 0 0
2017 1.1 1.1 1 0 0
2016 3.1 3.1 3 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

336412 · CT · Manchester

366 Aircraft engine and engine parts (except carburetors, pistons, piston rings, valves) manufacturing employers nationwide with a credible TCR · 7,008 rated employers in Connecticut with headcount on file · 145 employers in Manchester, CT · 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 Thermal Structures Inc. 4.8 TCR
NAICS-TCR B&B Precise Products, Inc. 4.8 TCR
NAICS-TCR E B Airfoils, LLC 4.8 TCR
NAICS-TCR Hanwha Aerospace USA - Newington 4.9 TCR
STATE-SIZE Waters Construction Company, Inc. 89 FTE
STATE-SIZE MPH 89 FTE
STATE-SIZE Kim Industries Inc. 89 FTE
STATE-SIZE 021 - Naugatuck 89 FTE
CITY-NEAR Manchester Memorial Hospital 1,652 FTE
CITY-NEAR 235 MANCHESTER CT 412 FTE
CITY-NEAR WM 1891 387 FTE
CITY-NEAR Home Office 381 FTE
NAT-TCR Milco Manufacturing Company 4.8 TCR
NAT-TCR Woeber Mustard 4.8 TCR
NAT-TCR John F Martin & Sons LLC 4.8 TCR
NAT-TCR Serfass Construction Co., Inc. 4.8 TCR
NAT-SIZE Livonia Corporate Center 89 FTE
NAT-SIZE ATC Drivetrain Engine 89 FTE
NAT-SIZE Complete Care at Bey Lea 89 FTE
NAT-SIZE Boedeker Plastics Inc. 89 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: 2021, 2020, 2019, 2018, 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.