Cracks/Holes in Honeycomb:
Lead-Lag damper has gaps between metal and rubber:
You spot a 1m x 1m pool of oil under the helicopter:
Water/Debris -check for fuel is done:
During DC-check voltage difference between systems I / II is:
Engine oil level is checked:
Draining fuel from drain valve is:
Hydraulic fluid/air sight class:
Rotor brake disc is blue spotted:
