1926.1404(h)(7): Boom Stability When Pins Are Removed
During crane assembly or disassembly, boom sections, boom suspension systems such as gantry A-frames and jib struts, and components must be rigged or supported to stay stable when pins are removed.
Key takeaways
- 1926.1404(h)(7) is part of OSHA's construction standards (29 CFR Part 1926, Subpart CC).
- OSHA cited it 2 times in the last 3 years, in 2 inspections, with $11,585 in current penalties.
- 1 death is linked to inspections that cited this rule.
- Related part: 1926.1404(h) Addressing specific hazards (8 citations).
- Free 5-minute toolbox talk for your crew below.
In this article
What this rule covers
29 CFR 1926.1404(h)(7) ("Stability upon pin removal") is one requirement inside 1926.1404 Assembly/Disassembly—general requirements (applies to all assembly and disassembly operations), an OSHA construction standard (Part 1926, Subpart CC). The official text below is copied word for word from the Electronic Code of Federal Regulations (eCFR). The numbers, injury cases and training on this page show how OSHA enforces it on real job sites.
Official text
(7) Stability upon pin removal. The boom sections, boom suspension systems (such as gantry A-frames and jib struts), and components must be rigged or supported to maintain stability upon the removal of the pins. 2 citations
Source: eCFR, text current as of 2026-10-15. Read all of 1926.1404.
Injuries linked to this rule
1 death is linked to inspections where OSHA cited 1926.1404(h)(7).
At 9:00 a.m. on October 23, 2023, employees were attempting to disassemble the crawler crane. The employees removed the pins in an incorrect order and without proper blocking. The boom section collapsed onto an employee. The employee was fatally injured. The employee was struck by…
Where and how often it was cited
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A 5-minute crew talk on 1926.1404(h)(7), plus alerts when this rule changes. Free.
OSHA interpretation letters
None exist. OSHA has not published a letter of interpretation for 1926.1404(h)(7).
Related parts of this rule
- 1926.1404(h) Addressing specific hazards 8 citations
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Frequently asked questions
What must stay stable when pins are removed?
The boom sections, boom suspension systems such as gantry A-frames and jib struts, and components.
How is stability kept?
By rigging or supporting them to maintain stability upon the removal of the pins.
When does this apply?
During assembly and disassembly of the equipment.
About this page
Sources
- 29 CFR 1926.1404 (eCFR), text current as of 2026-10-15
- U.S. Department of Labor enforcement data: OSHA inspections, citations and accident records, copied nightly; data as of 2026-10-19
3-year window. Federal OSHA only; state-plan rules are not counted. Plain-language text is a summary, not legal advice; the official text controls. Black Belt Safety is not part of OSHA or the Department of Labor.