Corrosion Inspection & Laser-Cleaning Checklist ✓ Step ☐ Record A/C tail-number, panel/structural station, date & inspector initials ☐ Verify SRM corrosion-depth limits for panel/part ☐ Ambient temp 10 – 35 °C & RH < 80 % ☐ PPE on: laser goggles (1064 nm OD 6+), nitrile gloves, respirator, hearing protection ☐ Mask adjacent structure & sensors; set fume extraction running ☐ Baseline thickness & roughness readings logged ☐ Parameter set entered on HMI: ☐ • Pulse-width ______ ns • Rep-rate ______ kHz • Spot Ø ______ mm ☐ • Scan speed ______ mm s−1 • Passes ______ ☐ Test coupon cleaned & inspected (no melt, Ra ≤ 2 μm) ☐ Clean target area – monitor substrate temp (≤ 120 °C) ☐ Post-clean eddy-current thickness check (loss < 2 %) ☐ Surface water-break test – pass? ☐ Apply MIL-C-81706 TCP within 8 h ☐ Prime & top-coat per SRM paint schedule ☐ Sign maintenance release & attach photos Footnote – Source Thresholds
• Primer fluence 5.09 J cm−2, top-coat 17.7 J cm−2, substrate damage 24.8 J cm−2 (mdpi.com, opg.optica.org)
• Oxide film removal 1.43–1.82 J cm−2 (sciencedirect.com) Additional parameter optimisation from Frontiers Phys 2025 paint-stripping study (frontiersin.org) Aviation Laser Services © 2025
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