Aircraft assemblies, subassemblies, and parts (except engines) manufacturing · California

DRETLOH Aircraft Supply, Inc.

Name: DRETLOH Aircraft Supply, Inc. Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Ana, CA · ~29 workers · 4 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

C
Average Safety Record: 3.1
Avg TCR: 3.3
Industry avg: 0
Fatalities

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The verdict

DRETLOH Aircraft Supply, Inc. runs at 95% of its industry's injury rate - about level with the typical Aircraft assemblies, subassemblies, and parts (except engines) manufacturing workplace, earning a grade C.

DRETLOH Aircraft Supply, Inc.: 3.1 TCR = 95% of Aircraft assemblies, subassemblies, and parts (except engines) manufacturing BLS 3.3 · 4y Form 300A (see methodology below)

DRETLOH Aircraft Supply, Inc. safety composite

DRETLOH Aircraft Supply, Inc. scores strongest on dart rate (safer than 80% of same-industry peers) and weakest on total case rate (tcr) (safer than 27%), 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).

51/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): F 3.13 per 100 workers

Safer than 27% of industry peers
DART rate: B 0 per 100 workers

Safer than 80% 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

−2.5

2017→2020

DRETLOH Aircraft Supply, Inc. injury rate improved

DRETLOH Aircraft Supply, Inc.'s TCR fell 2.5 from 2.5 in 2017 to 0.0 in 2020. Peak filing year was 2018 at 10.0 TCR. In 2020, DART was 0× this establishment's average TCR (severity share of cases).

2017=2.5 · 2018=10.0 · 2019=0.0 · 2020=0.0

OSHA ITA Form 300A scorecard

Establishment book 336413 · Ana, CA AT/BELOW-IND · SMALL

Grade C · TCR 3.1 · 95% of ind

DART 0.0 DART
RANK #63/104
PHOTO Applied Composites -…
BOOK 4y book
INJ 4 inj
SIZE ~29 FTE

Nearest TCR peer: Applied Composites - Cleveland (0.0 TCR gap)

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

This site

3.1
Applied Compos

3.1
Northstar Aero

3.1
Applied Compos

3.1
CEF Industries

3.1

What this shows DRETLOH Aircraft Supply, Inc. averages 3.1 TCR (95% of the Aircraft assemblies, subassemblies, and parts (except engines) manufacturing BLS benchmark).

DRETLOH Aircraft Supply, Inc. TCR series: 2017=2.5 · 2018=10 · 2019=0 · 2020=0 · BLS 3.3

Where DRETLOH Aircraft Supply, Inc. falls in its industry

650 Aircraft assemblies, subassemb establishments

Safer than 27% of graded establishments in this industry, whose median TCR is 1.9.

Grade C

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #63 safest of 104 Aircraft assemblies, subassemb employers in California.

DRETLOH Aircraft Supply, Inc. (29 employees, TCR 3.1) among 29 same-industry peers, split at the industry median of 130 employees and a TCR of 1.9

DRETLOH Aircraft Supply, Inc. has fewer employees than the Aircraft assemblies, subassemblies, and median and a higher injury rate than the industry's median TCR of 1.9. 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
2020	0.0	0.0	0
2019	0.0	0.0	0
2018	10.0	10.0	3
2017	2.5	2.5	1

OSHA ITA peer cross-reference

Establishment peer ledger

336413 · CA · Ana

650 Aircraft assemblies, subassemblies, and parts (except engines) manufacturing employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 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	Applied Composites - Cleveland	CLEVELAND, OH	3.1 TCR
NAICS-TCR	Northstar Aerospace - Bedford Park	BEDFORD PARK, IL	3.1 TCR
NAICS-TCR	Applied Composites - Los Alamitos	LOS ALAMITOS, CA	3.1 TCR
NAICS-TCR	CEF Industries, LLC	ADDISON, IL	3.1 TCR
STATE-SIZE	Sean V. Doherty Farms	ARBUCKLE	29 FTE
STATE-SIZE	Blanco Farms, LLC	SALINAS	29 FTE
STATE-SIZE	CONSTRUCTION SUPPORT SHOP	ARVIN	29 FTE
STATE-SIZE	Cottonwood Farms	VISALIA	29 FTE
NAT-TCR	Roses 235	Albany, GA	3.1 TCR
NAT-TCR	Retail Yard	Tacoma, WA	3.1 TCR
NAT-TCR	BWI Baltimore Airport	Baltimore, MD	3.1 TCR
NAT-TCR	ANT	Greensboro, NC	3.1 TCR
NAT-SIZE	DI - RASM-W Ft Bliss	Fort Bliss, TX	29 FTE
NAT-SIZE	DI - Army CLS Dothan AL	Dothan, AL	29 FTE
NAT-SIZE	Ashley Furniture Homestore- South County	St. Louis, MO	29 FTE
NAT-SIZE	Ashley Furniture Homestore- West County	Balwin, MO	29 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: 2020, 2019, 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.