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Movie Hazard Analysis #08 · Emergency reactor chamber entry

Star Trek II: The Wrath of Khan (1982)

The residual risk never moved

Four of five steps come back with residual risk equal to initial. The controls were never in place.

Initial risk
10
HIGH
Residual risk
10
HIGH

Probability × severity, before and after the JHA’s controls. The highest-scoring step sets each band.

Movie Hazard Analysis #08 cover: Star Trek II: The Wrath of Khan (1982)
Sep 3, 2026 · 33sWatch on YouTube ↗

The work order

Movie Hazard Analysis #08 runs the emergency reactor chamber entry from Star Trek II: The Wrath of Khan (1982) as if it were a real work order: five steps, hazard by hazard, controls, and initial vs. residual risk scoring.

Featured in the video

Steps 1, 3, and 4:

  1. Evaluate reactor chamber and authorize emergency entry
  2. Stage attendant, rescue, and entry support
  3. Manually realign intermix mechanism

What moved the risk

The JHA flags controls as insufficient on steps 1 through 4. Only step 5, permit closeout, reduces at all - 10 High to 5 Medium. One line carries the whole analysis: the stated no-PPE condition is a stop-work condition, not a deviation to be managed.

FIELD NOTE

The transfer to real work. An unsurveyed sealed space with one egress, one entrant, no dosimetry and no rescue staged is a permit-required confined space whether or not the emergency makes that inconvenient. And the attendant does not enter for rescue - that rule exists because the would-be rescuer becomes the second casualty, and it holds hardest when the entrant is someone you would run in for.

Every hazard, control and risk number shown comes from the JHA itself; nothing is invented or rounded for effect. Inspired by Star Trek II: The Wrath of Khan (1982): commentary and hazard analysis of a fictional scene as depicted, with no affiliation with the film or its rights holders. The underlying JHA was generated with JHA Rapid, is AI-assisted, and must be reviewed by a qualified safety professional before use. Not a compliance document.

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