Night-Shift Near-Miss, Morning-Shift Deadline
You are the shift superintendent at a three-line injection-molding plant. At 02:40, a maintenance technician clearing a jammed conveyor inside a guarded zone used a screwdriver while the line was still energized; a second technician stood by without locking out. The jam cleared, no one was hurt, and no one reported it. You learned at 06:15 from a line lead who saw it on camera footage pulled for an unrelated quality issue. Both technicians are on shift until 14:00. The plant manager wants line 2 running by 08:00 because a customer order of 180,000 parts is due in 36 hours and the contract carries a $250,000-per-day late penalty; the same shortcut has been informally tolerated for years under a "quick clear" practice. The corporate safety director is flying and unreachable until about 13:00. The conveyor interlock was verified functional at the last PM, and the guard was replaced but not locked out. A written lockout procedure exists but has not been trained on since 2022.
1. What do you do in the next 90 minutes, and why in that order?
Read the worked answer
1. Stop and secure (by 06:30). Tag line 2 out of service with a physical lock and tag, not a verbal hold. The line has an unresolved energy-isolation failure and an untrained procedure; running it before the facts are established converts a near-miss into a repeat exposure.
2. Preserve evidence (by 06:45). Export and preserve the camera footage before it overwrites, photograph the guard and the jam location, and secure the screwdriver and any tools. Note the interlock PM date and the training records for both technicians - the 2022 training gap is now part of the causal picture.
3. Separate and interview (by 07:30). Speak to each technician individually, fact-finding not fault-finding: what they were doing, what they believed the rule was, whether they had been shown a different way, who else does it this way. Do not discipline in the first conversation; you will get a defensive story and lose the systemic information you actually need. Confirm they are fit for the rest of the shift.
4. Interim controls (by 08:00). Line 2 stays down until a documented re-verification of the interlock, a guard check, and a supervised energy-isolation briefing for the maintenance crew on shift. Then a decision on restart, made with the operations manager, not by default.
5. Notify (by 08:00). EHS duty contact and the operations director now, with a written log of times and what you attempted with the safety director. Do not wait for the 13:00 flight to land.
2. How do you answer the plant manager's production pressure without either caving or turning it into a standoff?
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Bring the numbers, not the moral tone. Late penalty is $250,000 per day. Restarting an unverified guard on a line where a person was reaching into an Energized zone risks a fatality, a regulatory investigation, and a line that is down for weeks rather than hours. That comparison is not close, and it should be said in that order because it is the language the plant manager is accountable in.
Then solve the production problem instead of refusing it. What can actually run: lines 1 and 3 at full rate, re-sequencing the schedule so the 180,000-part order starts earlier on the other lines, overtime authorization, expedited freight, a partial shipment with the customer notified today rather than at the deadline. Offer to make the customer call yourself if that helps. Production managers usually accept a real plan faster than they accept a principle.
Be explicit about the authority question. If you are told to restart line 2 before verification, ask for that instruction in writing and copy it to EHS and the operations director. This is not defiance; it makes the decision visible to the people who own it. In most organisations the instruction evaporates at that point.
Afterwards, do not let it become a personality conflict. Put the near-miss on the weekly operations agenda with the corrective actions and owners, so the next conversation is about closure status, not about who won.
3. What do you do about the years-old "quick clear" practice, and what goes in the record?
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Treat the practice as the finding, not the two technicians as the finding. A shortcut tolerated for years means the procedure was unworkable, unknown, or unenforced - the 2022 training gap supports all three. Blaming two individuals for a norm they inherited guarantees the norm survives and reporting stops.
Corrective actions with owners and dates: retrain all maintenance and line leads on lockout and jam clearing (not just line 2); make the jam-clearing procedure physically available at the line; confirm whether the tool-use exception applies - it does not cover reaching into a guarded zone to clear a jam; add a guard-design or tooling fix so the jam cannot be cleared without isolation; audit other lines for the same practice; reinstate a reporting route that does not depend on camera footage discovered by accident; and recognise the line lead who raised it.
The record should contain: time-stamped incident report; statements; footage reference; equipment condition and PM history; interim controls and when they were lifted; notification attempts and outcomes; corrective actions with owners and due dates; and the disciplinary decision, if any, made after fact-finding and applied consistently. Keep the personal/medical content out; keep the facts in. A near-miss with no injury is the cheapest lesson the plant will ever get - write it up as though the injury had happened, because that is what makes the next one preventable.