Aircraft assemblies, subassemblies, and parts (except engines) manufacturing · California
Ducommun Monrovia
Monrovia, CA · ~182 workers · 7 years of OSHA Injury Tracking Application data.
- B
- Good Safety Record
- 1.7
- Avg TCR
- 3.3
- Industry avg
- 0
- Fatalities
The verdict
Ducommun Monrovia runs at 52% of its industry's injury rate - safer than the typical Aircraft assemblies, subassemblies, and parts (except engines) manufacturing workplace, earning a grade B.
Ducommun Monrovia: 1.7 TCR = 52% of Aircraft assemblies, subassemblies, and parts (except engines) manufacturing BLS 3.3 · 7y Form 300A (see methodology below)
Ducommun Monrovia safety composite
Ducommun Monrovia scores strongest on dart rate (safer than 80% of same-industry peers) and weakest on fatalities (safer than 50%), 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).
62/100
Percentile-weighted across 3 of 3 measures
- Total Case Rate (TCR)
- D 1.71 per 100 workers
Safer than 54% 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
−4.1
2018→2024
Ducommun Monrovia injury rate improved
Ducommun Monrovia's TCR fell 4.1 from 4.1 in 2018 to 0.0 in 2024. Peak filing year was 2019 at 4.5 TCR. In 2024, DART was 0× this establishment's average TCR (severity share of cases).
2018=4.1 · 2019=4.5 · 2020=1.1 · 2021=1.7 · 2022=0.6 · 2023=0.0 · 2024=0.0
OSHA ITA Form 300A scorecard
Establishment book 336413 · Monrovia, CA AT/BELOW-IND · MID
Grade B · TCR 1.7 · 52% of ind
- DART 0.0 DART
- RANK #35/104
- PHOTO PCX Aerosystems
- BOOK 7y book
- INJ 22 inj
- SIZE ~182 FTE
Nearest TCR peer: PCX Aerosystems (0.0 TCR gap)
Read with this employer → · Industry book → · California employers → · Look up another →
Ducommun Monrovia in the TCR neighbourhood
Average Total Case Rate among this establishment and nearest same-industry peers
- This site
Ducommun Monrovia
1.7 TCR
- PCX Aerosystem
PCX Aerosystems
1.7 TCR
- Aerospace : Ha
Aerospace : Hauppage
1.7 TCR
- Sylmar
Sylmar
1.7 TCR
- 49 West Dudley
49 West Dudley Town Road
1.7 TCR
What this shows Ducommun Monrovia averages 1.7 TCR (52% of the Aircraft assemblies, subassemblies, and parts (except engines) manufacturing BLS benchmark).
Ducommun Monrovia TCR series: 2018=4.1 · 2019=4.5 · 2020=1.1 · 2021=1.7 · 2022=0.6 · 2023=0 · 2024=0 · BLS 3.3
Where Ducommun Monrovia falls in its industry
650 Aircraft assemblies, subassemb establishmentsSafer than 54% of graded establishments in this industry, whose median TCR is 1.9.
Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #35 safest of 104 Aircraft assemblies, subassemb employers in California.
Ducommun Monrovia has more employees than the Aircraft assemblies, subassemblies, and median and a lower 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 | Illnesses | Fatalities |
|---|---|---|---|---|---|
| 2024 | 0.0 | 0.0 | 0 | 0 | 0 |
| 2023 | 0.0 | 0.0 | 0 | 0 | 0 |
| 2022 | 0.6 | 0.6 | 1 | 0 | 0 |
| 2021 | 1.7 | 1.1 | 3 | 0 | 0 |
| 2020 | 1.1 | 1.1 | 2 | 0 | 0 |
| 2019 | 4.5 | 4.5 | 10 | 0 | 0 |
| 2018 | 4.1 | 2.7 | 6 | 0 | 0 |
OSHA ITA peer cross-reference
Establishment peer ledger
336413 · CA · Monrovia
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 · 68 employers in Monrovia, CA · 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 | PCX Aerosystems | 1.7 TCR |
| NAICS-TCR | Aerospace : Hauppage | 1.7 TCR |
| NAICS-TCR | Sylmar | 1.7 TCR |
| NAICS-TCR | 49 West Dudley Town Road | 1.7 TCR |
| STATE-SIZE | ATI Ag Services, LLC | 182 FTE |
| STATE-SIZE | WESTERN WTR DIST HDQ | 182 FTE |
| STATE-SIZE | Thorpe Design Inc | 182 FTE |
| STATE-SIZE | Turlock South Processing Plant | 182 FTE |
| CITY-NEAR | California Department of Transportation Facility 593 | 2,621 FTE |
| CITY-NEAR | Monrovia 02 Oral Care | 695 FTE |
| CITY-NEAR | WorleyParsons Group Inc - Monrovia | 530 FTE |
| CITY-NEAR | Original Tommy's | 500 FTE |
| NAT-TCR | Sodexo at Dtna Hq | 1.7 TCR |
| NAT-TCR | Sodexo at Hca Parkland | 1.7 TCR |
| NAT-TCR | Absolut Manufacturing, LLC | 1.7 TCR |
| NAT-TCR | OSR Louisiana, LLC (d/b/a Ochsner Rehabilitation Hospital) | 1.7 TCR |
| NAT-SIZE | Renick Brothers Mechanical Contractors | 182 FTE |
| NAT-SIZE | Bay Shores Senior Care & Rehab | 182 FTE |
| NAT-SIZE | Vapor Bus International | 182 FTE |
| NAT-SIZE | OVNA | 182 FTE |
Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →
Read our methodology - how this data is sourced, computed, and verified.