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CSB Investigation
Report No. CSB-MARATHON-MARTINEZ-2025
2025
Fire Fire
Marathon Martinez 可再生燃料装置加热炉火灾
Marathon Martinez Renewable Fuels, Martinez, California
Related equipment → Fired heater (fired_heater)
0Fatalities
1Injuries
FireMechanism code FIR
⌗Failure Mode · ISO 14224 Mapping
Damage mechanism (recorded in KB)
FireFIR
Internal damage-mechanism code (not ISO 14224)
ISO 14224:2016 functional failure code
OTH · Other
Mapped to ISO OTH — Other.
1What Happened
加氢脱氧装置循环加热炉火灾，1 名操作员严重烧伤
2Root Cause
加热炉燃料/工艺系统完整性及点火源管控不足
3Reliability Lessons (from investigation root cause)
- The 'Root Cause' above is the core lesson of this accident; not split further.
4Associated Failure Mechanisms (Keywords)
加热炉 火灾 循环炉 可再生燃料 灼伤
About the Failure-Mode Code (click to expand)
The mechanism code FIR shown on this card is the KB's internal damage-mechanism abbreviation (not an ISO 14224 code); it describes how the equipment failed. The 'ISO 14224 Mapping' block above maps it to the correct ISO functional failure code (which describes what the equipment failed to do) — these are two distinct dimensions in ISO 14224. The mechanism follows the narrative in the card body.
5Evidence Source (transparent)
Authority：U.S. Chemical Safety and Hazard Investigation Board (CSB)
Official Report：www.csb.gov ↗
Data Verification：verified_url_csb_investigations_list_2026-08-07（终报 2025-03-13）
↗Related Failure Modes · Traceability
This accident is not yet linked to a specific FM traceability card.