Part 139 inspectors don't ask whether your ARFF fleet can respond in three minutes to the midpoint of the farthest runway — they ask you to prove it happened, with drill data tied to the specific vehicle. Documentation gaps consistently rank among
Oxmaint helps international hubs, regional airports and ground handling operators run work orders, preventive maintenance and Part 139 self-inspections across passenger boarding bridges, baggage handling, ground support equipment, airfield lighting, ARFF vehicles and fuel farms — from one platform.
Assets Tracked
Active WOs
Part 139 Compliance
Airside Availability
Part 139 self-inspection · RWY 27L
Morning check complete · No FOD · Signed 06:12
PM WO created · PBB Bay 12
Cycle trigger 8,000 movements · Lube service tonight
Predictive alert · GPU-14 alternator
Vibration anomaly · WO staged · Parts reserved
AGL fault · TWY B centreline 24
Auto WO · Airside team dispatched
PBB counters, GSE hour meters, Part 139 routes, BHS faults and AGL circuits — one asset register, one audit trail.
PBBs, BHS, GSE, lighting and ARFF with the right meters and checklists built in.
Daily, weekly and monthly self-inspections — every entry signed and time-stamped.
Belt loaders, tugs and GPUs run as an hour-based fleet with mobile job cards.
Live fault feeds from BHS PLCs and lighting controllers auto-create work orders.
Every boarding bridge is a tracked asset — movement-count meter, PCA and 400Hz GPU sub-assets — with PM triggered on actual movements, not calendar dates. The same register carries escalators, elevators, AHUs, chillers and generators, each with a QR label, PM schedule and full work order history.
Rotunda, drive column & canopy PM
Filter, belt & converter PM per bay
Step chains, brakes & door interlocks
AHUs, coils, filters & cooling towers
8,140 of 10,000 movements · Lube WO tonight
Filter dP nominal · Discharge temp stable
1,240 hrs · Chain tension check due
Filter dP high · Change WO scheduled 22:00
Every GSE unit — belt loaders, pushback tractors, tow tugs, GPUs, air start units, water and lavatory carts — gets its own asset record, hour-based PM schedule, parts kit and mobile job card. Hours come from onboard meters or telematics, so oil, filter, hydraulic and brake PM trigger on actual duty instead of a calendar.
Engine hours, hydraulics & brake PM
Belt tension, roller & deck PM
Alternator, breaker & converter PM
Pump, hose & sanitation checks
790 of 1,000 hrs · Full service kit reserved
2,140 hrs · Belt tension nominal
Alternator vibration anomaly · WO staged
240 hrs · Brake pad wear inspection due
Every BHS motor, drive, conveyor section, tilt tray and EDS scanner is a tracked asset — fault codes flow in from the PLCs over OPC-UA and become work orders automatically, with asset, code and location populated. Airfield lighting works the same way: runway edge lights, PAPIs, centreline fixtures and CCRs raise a WO the moment they fail.
Fault code, location & duration per stop
Calibration & conveyor belt PM
Runway, taxi & approach lighting
Regulator load, isolation, transformer
Tilt tray 12 misalignment · Tech dispatched
Monthly cal WO scheduled · QA on shift
Auto WO from AGL system · Airside dispatched
Load nominal · Insulation OK
Oxmaint plugs into the vibration, temperature, current and pressure sensors already on your GSE telematics, chillers, PBB drives and BHS conveyors — no new hardware to buy. A healthy signature is learned per asset in the first weeks, and when a signal drifts Oxmaint raises a work order with parts reserved, technician assigned and the failure hypothesis attached.
Telematics, PLC & historian feeds
Healthy signature learnt in 2-4 weeks
Parts reserved · Tech assigned · Hypothesis
Live health score per critical asset
Vibration up 26% · Bearing kit reserved
Compressor amps trending · Oil sample WO
Vibration signature drift · Gearbox WO
AI Vision connects to your existing apron and airside cameras and scans for maintenance triggers — fuel and hydraulic spills, damaged PBB canopies, FOD along the taxiway edge, unsecured GSE and faded markings. Anything above your confidence threshold becomes a work order with the still image, timestamp and video clip attached.
Ramp spills, hydraulic under GSE
Taxi edge & ramp position monitoring
High-vis, ear defenders, wands
Unsecured units, canopy bumper
Fuel sheen detected · 95% confidence
FOD object detected · Sweeper dispatched
Canopy bumper scuff · Inspection needed
High-vis & wands compliant
Every asset across airfield and terminal gets a QR label — PBBs, GSE, escalators, BHS motors, AGL fixtures, ARFF vehicles and AHUs. Scan it to see open WOs, health score, last inspection and isolation procedure, then create a work order or log a Part 139 entry in one tap. Offline-first, so perimeter rounds sync when signal returns.
History, PM and inspection on one scan
Signed entries from the vehicle
BHS basement, perimeter, ramp
Hot work, driving, work-at-height
Location: T2 Concourse B · ID: PBB-B12
Recent Activity
WO-4218 · Canopy bumper inspection · Open
Insp-9411 · Weekly PBB check · Passed 3d ago
WO-4104 · Drive column lube · Closed 30d ago
Beyond work orders and PM — inspections, GSE fleet, downtime tracking, spare parts, permits, Part 139 records, analytics and ERP integration.
Create, assign and close WOs across PBBs, BHS, GSE and airside. Predictive alerts, AI Vision findings and BHS/AGL faults all auto-generate WOs with parts and procedure attached.
Daily, weekly and monthly workflows for movement areas, marking, lighting and ARFF — geo-tagged entries, digital sign-off and one-click audit export.
Every GSE unit as its own asset with hour-based PM, telematics, parts kit and mobile job card. Multi-station rollouts share one PM template library.
Every BHS stop captured with fault code, zone and duration, rolling up into MTBF, MTTR and sorter availability per terminal, shift or airline.
PBB drive components, AGL fixtures, CCR spares, GSE engine kits and BHS drives — auto-reserved on WO creation, PO drafted at reorder point.
Digital permit-to-work, LOTO, hot work and airside driving built into every job, with photo evidence and audit-ready records.
Live dashboards for MTBF, MTTR, PM compliance, PBB and sorter availability, GSE breakdown rate and Part 139 status — with multi-airport rollups.
Bi-directional sync with SAP PM, MM, EAM and FI, plus read-only feeds from BHS PLCs, AGL monitoring and GSE telematics via OPC-UA and Modbus.
International hubs, regional Part 139 airports and ground handling contractors — different asset mix, same workflows. Here are four typical deployments.
The Problem
A 4-terminal hub with 62 PBBs ran PM in three spreadsheets per terminal, WOs on paper dockets and Part 139 checks in a separate log — audit prep ate weeks every cycle.
What Oxmaint Delivered
Full deployment across 4 terminals and airside — QR-labelled assets, PBB cycle-based PM, BHS fault integration and Part 139 workflows, with mobile rollout to every technician.
4 terminals + airside
PBB PM on real movements
Techs & self-inspectors
Every PBB, escalator, AHU, chiller, BHS motor and airfield fixture QR-labelled in one multi-terminal hierarchy.
Rotunda, drive column, canopy and PCA PM triggered on movement counts pulled from the PBB controllers.
Self-inspection routes on the mobile app with geo-tagged entries, digital sign-off and one-click FAA audit export.
156 technicians and self-inspectors receiving WOs, running Part 139 checks and closing jobs from the app.
The Problem
A contractor ran 380 GSE units across 12 stations on calendar-day PM regardless of use — busy units failed unexpectedly, quiet ones were over-serviced, and SLA reporting was manual.
What Oxmaint Delivered
Every GSE unit became an asset with its hour meter feeding PM triggers, one template library gave all 12 stations the same standards, and per-airline SLA reports pulled straight from the CMMS.
GSE units onboarded
PM on real duty
One PM standard
Every belt loader, pushback, GPU and tow tractor as its own asset with hour meter and spare-parts kit.
Oil changes, hydraulic filters, brake checks and belt tensioning triggered on onboard hour meters via telematics.
One template library across 12 stations — same PM checklist and pass/fail criteria per GSE class everywhere.
Per-airline SLA reports in a click — GSE availability, on-time turn rate and breakdown counts per contract.
The Problem
A regional Part 139 airport ran self-inspections on paper clipboards, ARFF PM on a wall calendar and lighting faults in a notebook — a previous audit raised findings on missing signatures.
What Oxmaint Delivered
Self-inspection routes moved to the mobile app with geo-tagged entries and digital sign-off. ARFF vehicles became tracked assets, lighting faults auto-generated WOs, and the record pulls in one export.
Every inspection entry
No missing signatures
Audit record on demand
Daily, weekly and monthly routes on the mobile app with geo-tagged entries and sign-off per checkpoint.
Every ARFF vehicle as its own asset with weekly readiness checks, foam system PM and digital service history.
AGL faults auto-generated WOs the moment a fixture failed, with location and series circuit already populated.
Inspections, WOs, PM records and ARFF history pulled into a single filtered export for the audit period.
The Problem
A 3-terminal BHS network with over 640 conveyor drives kept losing sorter time to gearbox and drive-motor failures — fault codes sat on the SCADA with nobody watching current or vibration.
What Oxmaint Delivered
The predictive engine subscribed to existing current and vibration feeds over OPC-UA, PLC fault codes became WOs in real time, and every stop logged as a coded downtime entry feeding availability reports.
Instead of run-to-fail
Drives monitored
Every stop event logged
OPC-UA connectors ingested existing current, vibration and fault feeds — no new hardware on 640+ drives.
AI learned healthy signatures per drive and gearbox — drift raised WOs with parts and hypothesis attached before failure.
Every stop captured with fault code, zone and duration — sorter availability per terminal, shift and airline.
Live per-drive health scores gave the reliability engineer a visual dashboard of where to intervene next.
Oxmaint plugs directly into the systems your airport already runs — BHS PLCs, AGL monitoring, PBB controllers, GSE telematics providers, airport historians, SAP PM/MM/EAM/FI and IBM Maximo. Bi-directional, real-time, no double entry.
Explore All IntegrationsFull platform — work orders, PM, predictive, GSE fleet, Part 139, BHS downtime, parts, permits, analytics and SAP in one CMMS. It covers airport infrastructure and ground equipment; aircraft maintenance sits in Part 145 MRO software.
Yes. The registry supports any hierarchy — airport › terminal › concourse › asset. PBBs, GPUs, BHS motors, GSE, AGL fixtures, ARFF vehicles, escalators and chillers each get a PM schedule, parts list and WO history.
Yes. Daily, weekly and monthly routes run on the mobile app with geo-tagged entries and sign-off per checkpoint. Failed checkpoints auto-generate WOs, with one-click audit export. ICAO Annex 14 and CAA/EASA work the same way — Oxmaint holds the record, the compliance determination stays with your regulator.
Yes. Every GSE unit — belt loaders, pushback tugs, tow tractors, GPUs, water and lavatory carts — becomes its own asset with hour-based PM from onboard meters or telematics. One template library gives every station the same standards, and per-airline SLA reports pull straight from the CMMS.
Yes. It subscribes to your existing BHS current and vibration feeds, GSE telematics, chiller amps and PBB drive temperatures via OPC-UA or Modbus — no new hardware. Healthy baselines are learned in two to four weeks, then drift raises a WO with parts reserved and failure hypothesis attached.
Yes. Real-time bi-directional sync with SAP PM, MM, EAM and FI, plus IBM Maximo. Read-only feeds from BHS PLCs, AGL monitoring, PBB controllers and GSE telematics pull fault codes, cycle counters and hour meters — with WOs and costs posting to the right terminal automatically.
See how Oxmaint tracks your PBBs, BHS, GSE fleet, airfield lighting, ARFF and fuel farm — with cycle- and hour-based PM, Part 139 self-inspection workflows, predictive maintenance from your existing sensors and mobile QR workflows.