Microbial contamination
Bacteria and fungi living at the fuel–water interface corrode tank structure, undermine sealant and clog filters and probes. We assess the growth, clean the tank to the manufacturer's procedure and treat it — at your location, with a documented before-and-after.
The tank tells you before the logbook does.
Microbial growth is a maintenance problem long before it is an airworthiness one. Any of these justifies an assessment.
Two services, one visit
Assessment
Borescope and direct visual inspection of tank interiors, sump and low-point samples drawn and handed to you for laboratory testing, and a written report grading visible contamination against the manufacturer's limits with a recommended action.
- — Samples drawn and handed over for your lab
- — Photo-documented interior inspection
- — Same-day written grading
Tank cleanup
Defuel, purge and confined-space entry; mechanical removal of biofilm and sludge; biocide treatment per the AMM; probe, compensator and sump cleaning; sealant inspection with spot repair; and a post-treatment visual check — with a sample handed to you for confirmation testing — before refuel.
- — Confined-space-qualified technicians
- — Biocide treatment to AMM
- — Sealant & corrosion spot check
- — Post-treatment check & release
Contamination often travels with a leak. If we find sealant damage or corrosion during cleanup, it is quoted and repaired on the same visit under our fuel leak repair and structural programs.
Keep it
clean.
Most growth starts with water. An assessment at every heavy check — or whenever an aircraft has sat — catches it while it is still a cleaning job, not a corrosion repair.
- — Assessments scheduled with your heavy checks
- — Inspection support on production lines and pre-delivery
- — Bundled with base maintenance visits
Suspect growth? Send us a photo.
Aircraft type, hours since last tank entry and a photo of the filter or drain. Assessment quote within one business day.
Request an assessment →