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This unit is certified for aircraft use.
1• Buckle the base to the aircraft seat 
using the lap belt as shown.  
A secondary belt path can also be 
used as shown in Fig. B.
2• Position the base rear facing in 
the aircraft seat. Check the level 
indicator on the side of the base 
to make sure that the ball is in the 
green area. If it is not, turn the knob 
left or right until it is in the correct 
position.
3•   Thread the lap belt through the slots 
on the base and lock the latch plate 
into the buckle.
4•   Pull the seat belt strap to tighten the 
base down. Press your body weight 
down on the seat to tighten the belt 
further.        
Check the level and adjust if needed. 
Push and pull on the base. If you can 
How to Use the Car Seat on Aircraft with Base
A
B