Scope
Left-hand boom section, from the lower connections to the upper assembly.
ANONYMISED FIELD CASE • 8 OCTOBER 2026
Visual check of the left-hand crane boom pin retainers
This anonymised field case is based on real inspection material. The footage was reviewed from the lower connections to the upper assembly, with each selected frame linked to a checked point, source timestamp and visibility limit.
ANNOTATED FILM
The pin remains in structural context while the close-up shows the detail
The film uses 4K source frames. Close-ups do not exceed the source resolution. Every sequence includes a timestamp and visibility status.
34 seconds • Full HD • seven sequential views • no client or location data
SCOPE AND METHOD
What was checked
Criterion
Presence of a visible retaining element on the shown end of each pin.
Source
4K footage, 3840 × 2160 px, 29.97 fps, duration 2 min 39.69 s.
Outside scope
Right-hand side, concealed areas, clearance, wear and compliance with the manufacturer's instructions.
EVIDENCE FRAMES
Review from bottom to top
These are representative frames selected from the footage. Their number is not the total number of pins in the structure.
VIEW 01
Lower inspection zone
Retaining element visible
VIEW 02
Boom section connection
Retaining element visible
VIEW 03
Intermediate zone
Retaining element visible
VIEW 04
Yellow/green section transition
Retaining element visible
VIEW 05
Upper intermediate zone
Retaining element visible
VIEW 06
Upper yellow section connection
Retaining element visible
VIEW 07
Upper connection assembly
Partial view. Additional close-up required
CONCLUSION AND LIMITATIONS
Positive result for visible points only. It is not extended to the complete structure.
Retaining elements were recognised on the clearly visible ends of the checked pins. The footage does not show every surface, the opposite side of the connections or concealed elements. It therefore does not confirm the completeness of every pin in the crane.
This is visual documentation, not a statutory inspection report, technical acceptance or certificate of safe operation. It does not assess cracks, deformation, corrosion, clearance, wear or installation compliance with the manufacturer's instructions.
SZCZECIN BASE, POLAND AND SELECTED EUROPEAN MARKETS
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