Safety Incidents OSHA Severe Injury Reports · 2015–2025
5,191,288Inspections Most recent open 2026-07-24 Last loaded 2026-07-29

OSHA Inspection: ARNOLD DEFENSE AND ELECTRONICS

Planned inspection · Safety discipline

On , OSHA opened a planned safety inspection of ARNOLD DEFENSE AND ELECTRONICS in 3000 ARNOLD TENBROOK ROAD, ARNOLD, MO 63010 (NAICS 331111). OSHA activity number 338919384.

What this inspection record means

OSHA opens inspections for many reasons — routine scheduling under a national or local emphasis program, an employee complaint or referral, or a follow-up after a reported injury. Opening or conducting an inspection is not itself an allegation or a finding that this employer broke any rule; any findings appear as the citations listed below, and citations can be contested, reduced, or withdrawn.

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Site address
3000 ARNOLD TENBROOK ROAD
City
ARNOLD
State
MO
ZIP
63010
Mailing
3000 ARNOLD TENBROOK ROAD, ARNOLD, MO 63010
Inspection type
Planned (H)
Scope
Complete (A)
Discipline
Safety
Advance notice
No
Union status
A
Opened
Closing conference
Case closed
Last modified
Data loaded
NAICS code
331111
Employees
33
Ownership type
A

6 citations on file for this inspection.

1910.147 C01

Serious Gravity 1 1 instance 16 exposed
Issued
Mar 25, 2013
Abate by
Jun 21, 2013
Penalty
Initial $1,785 · Current $1,250 Reduced
29 CFR 1910.147(c)(1):     Energy control program. The employer shall establish a program consisting of energy control procedures, employee training and periodic inspections to ensure that before any employee performs any servicing or maintenance on a machine or equipment where the unexpected energizing, startup or release of stored energy could occur and cause injury, the machine or equipment shall be isolated from the energy source and rendered inoperative.    1. Throughout the plant, at the time of the inspection, the employer was operating several multiple energy source (electric and air) machines without a machine specific energy control (lockout/tagout) program in place.
Recent events (2)
  • — I (S) $1249.5
  • — Z (S) $1785

1910.212 A01

Serious Gravity 1 2 instances 16 exposed
Issued
Mar 25, 2013
Penalty
Initial $1,517 · Current $1,062 Reduced
29 CFR 1910.212(a)(1):     Types of guarding. One or more methods of machine guarding shall be provided to protect the operator and other employees in the machine area from hazards such as those created by point of operation, ingoing nip points, rotating parts, flying chips and sparks. Examples of guarding methods are-barrier guards, two-hand tripping devices,electronic safety devices, etc.    1. In the production area, near the south wall, employees were using a Buffalo drill press with no chuck (arbor) guard in place. Employees were exposed to caught in and struck by hazards.    2. In the electronics department, near the west wall, employees were using a Guardian Power drill press with no chuck (arbor) guard in place. Employees were exposed to caught in and struck by hazards.
Recent events (2)
  • — I (S) $1061.9
  • — Z (S) $1517

1910.304 G05

Serious Gravity 1 2 instances 33 exposed
Issued
Mar 25, 2013
Penalty
Initial $1,517 · Current $1,062 Reduced
29 CFR 1910.304(g)(5):     Grounding path. The path to ground from circuits, equipment, and enclosures shall be permanent, continuous, and effective.    1. Inside of the employee breakroom, employees were using a General Electric microwave and a Hamilton Beach microwave that were not grounded. The metal casing (framing) on both appliances was energized.    2. Inside of the quality storage area near exit door, employees had been using a Bolton Tools metal band saw that was not grounded. The metal on the band saw was energized.
Recent events (2)
  • — I (S) $1061.9
  • — Z (S) $1517

1910.305 B01 I

Serious Gravity 1 2 instances 16 exposed
Issued
Mar 25, 2013
Penalty
Initial $1,517 · Current $1,062 Reduced
29 CFR 1910.305(b)(1)(i):     Conductors entering cutout boxes, cabinets, or fittings shall be protected from abrasion, and openings through which conductors enter shall be effectively closed.    1. In the center of the production area, there was a 120/240 volt electrical panel box with an unused opening located inside. Employees were exposed to physical contact with live parts.    2. In the center of the production area, there was a 440 volt electrical panel box with two (2) unused openings located inside of the the box. This breaker box energizes the welders, the crane and the two (2) Niagra stamping presses. Employees were exposed to physical contact with live parts.
Recent events (2)
  • — I (S) $1061.9
  • — Z (S) $1517

1910.179 B02

Other-than-serious 1 instance 16 exposed
Issued
Mar 25, 2013
Penalty
Initial $0 · Current $0
29 CFR 1910.179(b)(2):     New and existing equipment. All new overhead and gantry cranes constructed and installed on or after August 31, 1971, shall meet the design specifications of the American National Standard Safety Code for Overhead and Gantry Cranes, ANSI B30.2.0-1967, which is incorporated by reference as specified in Sec. 1910.6.    1. At the time of the inspection, near the dip tank, employees were operating a 1/4 ton overhead crane with no safety tag located above the pendant control box.
Recent events (2)
  • — I (O) $0
  • — Z (O) $0

1910.305 B02

Other-than-serious 7 instances 16 exposed
Issued
Mar 25, 2013
Penalty
Initial $0 · Current $0
29 CFR 1910.305(b)(2):     Pull boxes, junction boxes, and fittings were not provided with covers approved for the purpose: In completed installations each outlet box shall have a cover, faceplate, or fixture canopy:    1. In the manufacturing area, behind the acid dip tank, there was a knockout missing underneath the junction box.    2. In the manufacturing area, on the Niagra M-150 # 2 machine, there was a knockout missing on the bottom and side of the power supply box.    3. In the manufacturing area, on the east wall, there was a knockout missing on the junction box.    4. In the quality storage area, near the north exit door, there was a duplex outlet with a knockout missing on the side.    5. In the potting area, there were knockouts missing on the side and bottom of a 220 volt panel box (C4).    6. In the potting area, near the oven, there was a knockout missing underneath the switch box.    7. In the circuit board sodering area, there was a knockout missing on the side of the 110/220 volt panel box.
Recent events (2)
  • — I (O) $0
  • — Z (O) $0

This record is reproduced from the U.S. Department of Labor Open Data API (OSHA inspection dataset). The original IMIS detail view is available at OSHA's Establishment Search for activity number 338919384.

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