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CSB Investigation
Report No. CSB-AGHORN-2021
2021
Toxic release Toxic
Aghorn 注水站硫化氢释放
Aghorn Operating, Odessa, Texas
Related equipment → piping (piping)
2Fatalities
0Injuries
FailureMechanism code OTH
⌗Failure Mode · ISO 14224 Mapping
Damage mechanism (recorded in KB)
FailureOTH
ISO functional code (as recorded)
ISO 14224:2016 functional failure code
OTH · Other
ISO OTH — Other.
1What Happened
硫化氢释放致 1 名工人及 1 名公众死亡
2Root Cause
油气田注水系统 H2S 监测与人员暴露管控不足（跨行业映射至承压/管线）
3Reliability Lessons (from investigation root cause)
- The 'Root Cause' above is the core lesson of this accident; not split further.
4Associated Failure Mechanisms (Keywords)
硫化氢 注水 释放 中毒 油气
About the Failure-Mode Code (click to expand)
The recorded code OTH is an ISO 14224:2016 functional failure code (describes what the equipment failed to do). The damage mechanism (how it failed) is shown in the Mapping block above. The two are distinct dimensions in ISO 14224.
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 2021-05-21）
↗Related Failure Modes · Traceability
This accident is not yet linked to a specific FM traceability card.