— Inspection #26
regenerative thermal oxidizer
May 13, 2026, 8:55:12 PM · 17533ms · 6721 tokens · card #2
Overall severity
LOW— Summary
Overall exterior view of CleanSwitch RTO unit appears structurally intact with ductwork, platform, ladder, and control enclosure in place; however, technician reports new fine light-tan dust accumulation around the lower duct flange that was not present six months ago, suggesting possible incipient flange leakage or seal degradation.
— Recommended action
Inspect and re-torque the lower duct flange bolts, check gasket condition, and sample/identify the tan dust; monitor for progression at next PM.
— Observations (3)
NONE
Unit exterior, ductwork, access platform, ladder, and control enclosure are intact with no visible structural damage or corrosion.
confidence 90%
LOW
Technician-reported fine light-tan dust deposit around lower duct flange indicates a new, slow particulate escape consistent with a developing gasket or flange-seal leak.
confidence 70%
NONE
No visible flames, smoke, panel deformation, or insulation damage observed in the photo.
confidence 90%
— Classification
- part
- complete unit with ductwork and access platform
- type
- regenerative thermal oxidizer
- view
- exterior side view
- family
- air pollution control
- reason
- Large insulated ducting feeds a boxy multi-chamber vessel with gas piping, burner access and a CleanSwitch control panel, typical of a regenerative thermal oxidizer (RTO) installed outside a facility.
- source
- context
- confidence
- 0.78
- taxonomy_type_id
- null
- taxonomy_family_id
- null
— Retrieved examples
#1972#1797#1985#1732#1987
Top-K examples from the knowledge corpus used as visual context for this inspection.
— Metadata
- image_uri
- s3://luthier-assets/inspections/1/d5a47a7e-5d58-456d-9471-2c22828a9e37-0004-eb9404a9f972743c.png
- model_version
- claude-opus-4-7
- prompt_template
- inspect-v2
- tokens (in/out)
- 5762 / 959
- cache (creation/read)
- 0 / 0
- latency
- 17533 ms