Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing · Maryland

NGMS-T339

Name: NGMS-T339 Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Linthicum, MD · ~299 workers · 6 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

A
Excellent Safety Record: 0.3
Avg TCR: 3.3
Industry avg: 0
Fatalities

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The verdict

NGMS-T339 runs at 8% of its industry's injury rate - far safer than the typical Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing workplace, earning a grade A.

NGMS-T339: 0.3 TCR = 8% of Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing BLS 3.3 · 6y Form 300A (see methodology below)

NGMS-T339 safety composite

NGMS-T339 scores strongest on total case rate (tcr) (safer than 82% 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).

72/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): B 0.27 per 100 workers

Safer than 82% of industry peers
DART rate: B 0 per 100 workers

Safer than 75% 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%).

NGMS-T339 held a steady TCR band

NGMS-T339's TCR held near 0.3 from 0.3 in 2019 to 0.0 in 2024. Peak filing year was 2022 at 1.0 TCR. In 2024, DART was 0× this establishment's average TCR (severity share of cases).

2019=0.3 · 2020=0.0 · 2021=0.0 · 2022=1.0 · 2023=0.4 · 2024=0.0

OSHA ITA Form 300A scorecard

Establishment book 334511 · Linthicum, MD AT/BELOW-IND · MID

Grade A · TCR 0.3 · 8% of ind

DART 0.0 DART
RANK #7/19
PHOTO NGAS-F128
BOOK 6y book
INJ 2 inj
SIZE ~299 FTE

Nearest TCR peer: NGAS-F128 (0.0 TCR gap)

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0.3
NGAS-F128

0.3
NGMS-T300

0.3
L3Harris

0.3
CO - RMC

0.3

What this shows NGMS-T339 averages 0.3 TCR (8% of the Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing BLS benchmark).

NGMS-T339 TCR series: 2019=0.3 · 2020=0 · 2021=0 · 2022=1 · 2023=0.4 · 2024=0 · BLS 3.3

Where NGMS-T339 falls in its industry

388 Search, Detection, Navigation, establishments

Safer than 82% of graded establishments in this industry, whose median TCR is 0.7.

Grade A

More dangerous than peersSafer than peers

Narrower to Maryland alone (the establishments it most directly competes with for workers and contracts): ranked #7 safest of 19 Search, Detection, Navigation, employers in Maryland.

NGMS-T339 (299 employees, TCR 0.3) among 29 same-industry peers, split at the industry median of 207 employees and a TCR of 0.7

NGMS-T339 has more employees than the Search, Detection, Navigation, Guidance, median and a lower injury rate than the industry's median TCR of 0.7. 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
2024	0.0	0.0	0	0
2023	0.4	0.4	1	0
2022	1.0	0.0	0	3
2021	0.0	0.0	0	0
2020	0.0	0.0	0	0
2019	0.3	0.0	1	0

OSHA ITA peer cross-reference

Establishment peer ledger

334511 · MD · Linthicum

388 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing employers nationwide with a credible TCR · 7,213 rated employers in Maryland with headcount on file · 35 employers in Linthicum, MD · 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	NGAS-F128	SAN DIEGO, CA	0.3 TCR
NAICS-TCR	NGMS-T300	LINTHICUM, MD	0.3 TCR
NAICS-TCR	L3Harris	FORT WAYNE, IN	0.3 TCR
NAICS-TCR	CO - RMC	ENGLEWOOD, CO	0.3 TCR
STATE-SIZE	Chaney Enterprises	GAMBRILLS	299 FTE
STATE-SIZE	4813-48130009-FREEMAN EXPO LANHAM	LANHAM	299 FTE
STATE-SIZE	PEPCO-Forestville Service Center	UPPER MARLBORO	298 FTE
STATE-SIZE	Terumo Cardiovascular Elkton Plant	ELKTON	300 FTE
CITY-NEAR	NGMS-T343	Linthicum	987 FTE
CITY-NEAR	230387-BALT INC MAIL MD P&DC	Linthicum	619 FTE
CITY-NEAR	NGMS-T348	Linthicum	323 FTE
CITY-NEAR	USA MD Linthicum	Linthicum	195 FTE
NAT-TCR	0010 - Human Resources	Mason, OH	0.3 TCR
NAT-TCR	Shipmates Printmates Holding Corp	Scotia, NY	0.3 TCR
NAT-TCR	Plaquemine Methocel	Plaquemine, LA	0.3 TCR
NAT-TCR	Gulf Coast Pipeline Services	Dickinson, TX	0.3 TCR
NAT-SIZE	Philips- Minnesota	Plymouth, MN	299 FTE
NAT-SIZE	H.T.Hackney	Lenoir City, TN	299 FTE
NAT-SIZE	1504 - Wake Forest	Wake Forest, NC	299 FTE
NAT-SIZE	1756 - Olathe	Olathe, KS	299 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, 2021, 2020, 2019. 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.