What does HLL stand for?
HLL stands for "Helideck Limitations List"
How to abbreviate "Helideck Limitations List"?
"Helideck Limitations List" can be abbreviated as HLL
What is the meaning of HLL abbreviation?
The meaning of HLL abbreviation is "Helideck Limitations List"
What does HLL mean?
HLL as abbreviation means "Helideck Limitations List"
