LSH-1143 at Station 11 chattered for a month and was then inhibited. The finding goes to the alarm engineer to replace it.
The 05:58 handover on Console 3, read against its own night
A cleaning pig pushed debris into a suction strainer at 03:14. Six alarms stood until 10:31, and the handover note in between called the night quiet. Here is how the analyst, the lead controller and the manager work that one handover.
demoConsole 3, its badges and each reading shown here are sample data.
- 0118:00
The night on one strip: 251 alarms, 114 of them before the handover
Compliance analystThe analyst opens Console 3 on the crude trunk and starts the tape at 18:00. One dark strip holds the console’s day: alarm bars, an orange band of six standing alarms at Station 12 suction, setpoint marks and the two badges on duty. Three panels follow the playhead: the alarm list, the note in force and what that note leaves out.
- 0205:58
Quiet night, says the note, with six alarms standing for 2 h 44 min
Compliance analystAt the handover pin the left panel shows what the alarm list held: suction at 73 psig, 35 psi across the strainer, discharge at 868 psig and flow at 7,130 bbl/h. The middle panel holds the off-going note: pig received, crew released, nothing else to pass on. Counted by alarms the night was quiet, which is why a note like this reads naturally.
- 0305:58
Both controllers signed a form with item 2 left unticked
Compliance analystThe signed handover form opens over the tape. Seven of eight items carry a tick. Item 2, standing and inhibited alarms reviewed, is empty and marked, and both badges signed at 05:58 after a handover of 3 min. One inspection report found the same: forms signed by both operators, some never reviewed, and no telling which.
- 0405:58
The comparison runs as five timed steps, then hands over to a person
Handover comparerCompare again shows the agent’s work in place of a verdict. It reads the note, lists what had stood for over 30 minutes at 05:58 out of 251 alarms, checks each one against the words of the note, reads the ticks on the form and hands the result to the analyst. It reads exports only and has no way into the control system.
- 0505:58
Each cited number opens its own line of the alarm export
Compliance analystClicking a cite opens the export row behind it: PDT-1203, the strainer A difference high at 03:14:08, reading 36 psi against a limit of 15, acknowledged, cleared at 10:31. Before writing a word, the analyst can test any line of the comparison against the historian’s own record, which is what an inspector will do later.
- 06After the handover
A cited draft, a line of the analyst’s own, and the easy answers ruled out
Compliance analystThe record opens with the agent’s draft, the analyst’s to edit. Below it, the agent lists what it checked first: both controllers were inside the fatigue plan, and PDT-1203 had a point check, so it is no known false reading. About 4,500 barrels ran under plan with no release. The analyst adds a line and names the owner.
- 07Before it stands
Each badge answers in its own words before the finding goes on
Lead pipeline controllerThe lead records a reply for each controller. Off-going, the badge agrees and says it was said at the desk; on-coming, it agrees and saw it on the alarm list. A record cannot show what was said aloud, and standing alarms sit on the incoming controller’s own list. So the finding reads not in the note and blames nobody.
- 08With the manager
Sign stays grey until the manager opens the minute and the form
Control room managerThe finding reaches the manager with both replies under it and a reason already chosen. Sign is greyed out behind two amber chips: move the tape to 03:14, and open the signed form. Playing the tape does not count. A manager who signs this finding has looked at the minute the alarms came in and at the empty box.
- 0903:14 on the tape
At 03:14 all six alarms read 0 min, and the 18:00 note is in force
Control room managerThe manager drags the record back to the first alarm. Six alarms show at 0 min, with suction at 67 psig and 36 psi across the strainer. The note in force is the one from 18:00, about the cleaning pig due into the Station 12 trap. The check bar at the foot now reads tape moved to 03:14 and signed form opened.
- 10Signed
F-27-0131 signed with its reason and sent to the alarm engineer
Control room managerThe manager signs, with the reason that the record shows it and the note does not. A green bar names who wrote the finding, says both controllers replied, and gives the alarm engineer 14 days. The evidence clerk then files it under its rule sections, and the year’s findings move to 288.