B-041 / hold-time investigation
DraftConfirmed against the instruction used
The recorded hold was 52 minutes. MBR-014 v04 permits 45. The batch exceeded that limit by 7 minutes.
What is not yet established
Why the transfer was delayed, and whether the extra hold affected the product. The lab results alone do not close that question.
Evidence to request next
ManufacturingTransfer, equipment and handoff records.
Technical reviewAn assessment of the extended hold and lab evidence.
Read the full investigation draft
Finding
The selected batch record shows 52 minutes between mix completion at 10:12 UTC and transfer completion at 11:04 UTC on 5 September 2026. MBR-014 v04 clause 7.2 permits 45 minutes. The recorded hold exceeded the requirement by 7 minutes. Sources: B-041 step 07; MBR-014 v04 clause 7.2.
What is not yet established
The records do not explain the delay or establish its effect on the product. IPC-041 has recorded results, but an approved hold-impact assessment is absent. A passing result, if confirmed, would not by itself establish that the extended hold was acceptable. Source: IPC-041.
Evidence to request
Manufacturing: verify the source timestamps and obtain the contemporaneous account of the transfer delay, including equipment and handoff records. Technical review: assess the hold-time knowledge and whether the sampling and results address the exposure. Quality: retain the exception and determine the review and disposition requirements. Keep missing evidence visible until supplied.
Proposed process improvement
Assess an elapsed-time calculation using required start and transfer timestamps, with an exception route above the existing 45-minute limit. Do not increase the limit to accommodate the observed overrun. This control could improve detection and escalation; it is not evidence of root cause or a demonstrated corrective action.
Decision status
Investigation, product-impact assessment and batch disposition remain open. The proposed configuration is separate work requiring specification, verification, training assessment and authorised release. No source record is changed by this draft.


