Pump FAT Failures and a Vendor's Partial-Shipment Offer
Halcyon Chemicals is expanding its effluent treatment plant and has ordered 14 centrifugal pumps from Vantage Pumps under a purchase order that incorporates the project specification: vibration no greater than 2.8 mm/s RMS at duty point, witnessed factory acceptance testing, and liquidated damages of $8,000 per day for late delivery beyond the agreed milestone. At last week's FAT, three of the 14 pumps measured 4.5, 4.1, and 3.9 mm/s; the other 11 passed. Vantage's quality manager says the cause is a batch of impellers with slightly off-balance machining and proposes reworking all 14 at its own cost, which would delay shipment four weeks. The project has 10 working days of float before the pumps are needed for mechanical completion. Vantage offers instead to ship the 11 passing pumps now, replace the three later, and extend the warranty from 12 to 24 months. The site construction manager says, 'Take the deal; we can work around three pumps.' The PM must respond to the vendor by Friday.
1. Should the PM accept the partial-shipment and warranty offer, reject it, or accept it conditionally? Show the technical and schedule reasoning.
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Do not accept the three failing pumps as-is. The vibration limit is 2.8 mm/s; readings of 4.5, 4.1, and 3.9 are roughly 40–60% above the limit, not marginal. All three come from one impeller batch, which suggests a systematic balance or machining problem, not random test noise. The 11 passing pumps may be acceptable if traceability shows they are from a different batch or if the vendor provides evidence; otherwise the same batch is suspect. On schedule, four weeks' delay against 10 working days of float leaves roughly 18 working days of exposure. At $8,000/day, that is about $144,000 in liquidated damages before site disruption. The warranty extension has value but does not recover schedule or the risk of premature failure. A conditional acceptance could work: ship 11 with certificates, hold the three, require a witnessed retest after rework, and formally document the deviation. Reject the 'work around three pumps' suggestion unless the schedule analysis shows those three are not on the critical path.
2. What contractual and technical remedies should the PM pursue with Vantage?
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Use the purchase order's inspection and acceptance clause: the buyer has the right to reject nonconforming goods, require correction, and recover costs. Issue a written nonconformance report citing the specification, test data, and FAT procedure. Require a root-cause analysis and a rework procedure before rework starts. Require witnessed retest at the vendor's shop with the same instrumentation and certified calibration. Consider whether the whole lot should be reworked if the impeller batch is not segregated. Negotiate the schedule remedy separately: expedite rework, add a second shift, or air-freight the three pumps. If the vendor's delay is recoverable under the PO, assess liquidated damages, but use them as leverage rather than an automatic penalty. A 24-month warranty is not a substitute for conformance, but it can be part of a settlement if the vendor also provides a corrective-action plan and a spares kit. Document every concession and make acceptance conditional on the retest.
3. How should the PM handle the construction manager's advice and communicate the decision to the client and vendor?
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Explain to the construction manager why partial acceptance is conditional: it is not about being difficult, it is about preserving the acceptance right and avoiding a latent vibration problem in a critical service. Show the schedule math and the cost of the delay. Then tell the client early with a clear recommendation: 'Three pumps are nonconforming; we are holding them, shipping the conforming units, and requiring a witnessed retest. The schedule exposure is X days, and the mitigation is Y.' Do not let the vendor split the client and the PM. Hold a single vendor meeting with a written agenda: root cause, rework plan, retest date, shipping plan, and commercial remedy. Require an 8D or equivalent corrective action covering impeller balancing records, machine calibration, and outgoing inspection. Update the risk register and consider pre-shipment inspection for future orders. The judgment is to protect the plant's reliability while managing the schedule honestly.