ATK Space Systems Inc. - Rancho Bernardo

Northrop Grumman Systems Corporation

16707 Via Del Campo Ct., Rancho Bernardo, CA 92127
Search and detection systems and instruments manufacturing (NAICS 334511)

DART 6.47 1 recordable cases · 15 avg employees · 30,895 hours worked

This establishment vs. the industry

The DART rate at this establishment is about 11.6× the industry median.

This establishment: 6.47
Industry median (Space vehicle guidance systems and equipment manufacturing, n=121): 0.56

Reported injury and illness, 2024

Fatalities0 Days-away-from-work cases0 Restricted-duty / transferred cases1 Other recordable cases0 Total recordable cases1 Days lost to injury0

Injury rates (per 100 FTE-year, OSHA standard)

DART rate6.47 (days away + restricted/transferred) DAFW rate0.00 (days away from work only) Total recordable rate (TRIR)6.47 (all OSHA-recordable cases) Annual average employees15 Total hours worked30,895
What these numbers mean. An OSHA-recordable case is a work-related injury or illness that resulted in death, days away from work, restricted work, transfer to another job, medical treatment beyond first aid, loss of consciousness, or significant injury diagnosed by a physician. DART rate is the OSHA-standard incidence measure — calculate it as (cases with days away + restricted/transferred) × 200,000 / hours worked. The 200,000 hours normalizes to 100 full-time-equivalent workers over a year. National average DART across all industries is around 1.7; high-risk industries (skilled nursing, warehousing, courier) routinely exceed 5.

Source: OSHA ITA 300A Summary Data, calendar year 2024 filings (downloaded 2026-05-23).

OSHA Lookup · workplace-injury data from OSHA ITA 300A 2024 · About / methodology