NCR-2026-022 Closed In-house Repair
Tubesheet drilling — 4 holes 0.3mm oversize
What was found
Four holes in the stationary tubesheet drilled 19.45 against 19.15 +0.10. Drill wander on the borer.
Corrective action
Holes bushed and re-drilled. Borer spindle bearings replaced under plant maintenance.
Raised by Craig Carter, Fitter & Machinist, on 19 Jun 2026 · closed 25 Jun 2026.
Detail
- Job
- JN 174312
- Customer
- ExxonMobil Australia
- Source
- In-house
- Cause
- Machining
- Disposition
- Repair
- Rework
- 5.0 h
- Cost
- $309
Rework hours are booked to the Rework category, which is indirect. They name this job so
the cost is attributable, and they never touch the job's quoted manufacturing or testing hours.