MTBF
84,654 h
Operating hours / failures
Tema Oil Refinery
Maintenance Planning
Preventive maintenance register
Reliability KPIs
MTBF
84,654 h
Operating hours / failures
MTTR
No closed repair
Repair hours / closed repairs
Availability
99.1%
Operating hours / calendar hours
Failures
4
0 closed, rest still open
Failure rate
0.10
Failures per pump this year
Planned work
88.6%
39 planned jobs, 5 reactive
Operating time is 8,760 h per pump in the window, minus recorded downtime. Standby pumps count as available because the register has no run-hour meter. A failure is a breakdown, corrective job, or a pump that is under maintenance or out of service. MTTR uses closed repairs only. Open repair age is 1,008 h. 1 down pump have no failure date, so that downtime is not in the hours. 1 failure have no duration.
| Tag | Duty | Failures | Downtime | MTBF | State |
|---|---|---|---|---|---|
| Submerged Pump | 1 | 1,152 h | 7,608 h | Down | |
| Blowdown pump to MOP | 1 | 960 h | 7,800 h | Down | |
| Process Sour Water pump | 1 | 912 h | 7,848 h | Down | |
| Amonia Injection Pump | 1 | Not recorded | 8,760 h | Down |
Maintenance KPIs
Figures are calculated from last PM date and frequency. The 7-day and 30-day windows do not overlap.
Total pumps
39
Full register
PMs overdue
39
100% of register
Due ≤7 days
0
Not yet overdue
Due ≤30 days
0
8 to 30 days
Open WOs
4
Corrective, still open
Compliance
0%
On time / scheduled. Target 100%
Critical compliance
0%
Criticality A on time
Overdue critical
7
A assets past due
Waiting material
4
Open WOs, material not ready
Mean days overdue
28
Average lateness on overdue PMs
0 on time of 39 scheduled pumps.
Target 100%. On time means the next due date is more than 30 days away.
| Tag | Description | Crit. | Next due | Days | Status | Condition |
|---|---|---|---|---|---|---|
| Crude charge pump | A | 2026-09-30 | -28 | Overdue | Good | |
| Crude charge pump | A | 2026-09-30 | -28 | Overdue | Good | |
| Crude charge pump | A | 2026-09-30 | -28 | Overdue | Good | |
| Residue Rundown | A | 2026-09-30 | -28 | Overdue | Good | |
| Residue Rundown pump | A | 2026-09-30 | -28 | Overdue | Good | |
| 01-C-01 Reflux/Stabilizer Charge | A | 2026-09-30 | -28 | Overdue | Good | |
| 01-C-01 Reflux/Stabilizer Charge | A | 2026-09-30 | -28 | Overdue | Good | |
| Kero Rundown pump | B | 2026-09-30 | -28 | Overdue | Good |