📝 Event: 2026-11-22_stage_encoder_cable_replacement
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📊 Report Overview
Event Metadata
Record Type
Maintenance Event
Maintenance Event
Reason / Suite
Problem
Problem
Service Provider
third_party
third_party
Instrument
scope-testx1Maintenance Action
Reason Details:
Stage occasionally lost absolute position after long overnight screening jobs, causing run aborts in approximately 1 of 6 plates.
Stage occasionally lost absolute position after long overnight screening jobs, causing run aborts in approximately 1 of 6 plates.
Action Details:
Replaced worn stage encoder ribbon cable and cable guide, rerouted harness to increase bend radius, and validated repeatability over 500 cycles.
Replaced worn stage encoder ribbon cable and cable guide, rerouted harness to increase bend radius, and validated repeatability over 500 cycles.
Status After Fix:
IN_SERVICE
Additional Notes
No position loss observed during post-repair endurance test.
📄 Raw YAML Ledger
View 2026-11-22_stage_encoder_cable_replacement.yaml
schema_version: 1
record_type: maintenance_event
maintenance_id: maint_scope-testx1_20261122_stage_encoder_cable_replacement
microscope: scope-testx1
service_provider: third_party
company: Precision Motion Nordic
reference: PMN-2026-7724
started_utc: '2026-11-22T07:20:00Z'
ended_utc: '2026-11-22T13:50:00Z'
reason: problem
reason_details: 'Stage occasionally lost absolute position after long overnight screening
jobs, causing run aborts in approximately 1 of 6 plates.
'
action: replace
action_details: 'Replaced worn stage encoder ribbon cable and cable guide, rerouted
harness to increase bend radius, and validated repeatability over 500 cycles.
'
microscope_status_after: in_service
downtime_hours: 6.5
related_qc:
- qc_scope-testx1_20261121T1700Z_repeatability_v1
- qc_scope-testx1_20261123T0820Z_repeatability_v1
attachments:
- maintenance/events/scope-testx1/2026/attachments/2026-11-22_encoder_validation.pdf
tags:
- stage
- encoder
- cable
- screening
followup: 'Run one unattended mock plate every Friday for four weeks.
'
next_due_date: '2026-12-20'
notes: 'No position loss observed during post-repair endurance test.
'
contact: 'Service technician: Tomas Berg'
status_notes: Fully functional