School Bus Extrication

School Bus Extrication• Thorough Size-Up• Initiate ICS• MCI Response• Request additional

resources– Pumpers– Ambulances– Heavy rescue– PIO– School Rep.– PD

Battery Box

Seat level

Floor level

Roof access

Types of Buses

• Type A• Type B• Type C• Type D• (90 percent are C & D)

• Size• Weight• Capacity• Location of Front Exit• Additional exits• Engine Location

Type A

• Conversion body• Front section

– Van type – Pick-up type

• Gross weight rating of 10,000lbs or less

• Capacity > 10

Type B• Conversion body• Van chassis• 10,000lbs or more• Capacity > 10• Engine beneath or

behind windshield, next to drivers seat

• Entrance behind front wheels

Type C• Body installed on a flat

back cowl chassis• 10,000lbs or more• Capacity > 10• Engine in front of

windshield• Entrance behind front

wheels

Type D• Body installed on

chassis• 10,000lbs or more• Capacity > 10• Engine

– Behind windshield– Midship– Rear axle

• Entrance is before front wheels

Construction

Yellow Tanks

Rescue Corridor

Establish a rescue corridor to maintain the one way flow of rescuer and victim removal

and prevent congestion.

Enter Exit

Extrication

Cribbing• Initial priority• Large amount of

cribbing• Crib as you go• Rescue struts• Air bags• Wrecker• Do not flatten

Tires!!!!!!!!!!!!

Tools

When using cordless tools, always have extra batteries and electric tools ready as a

back-up.

Bus Strength

• Windows

• Windshield

• Doors

• Bus Structure Itself

Weakest

Strongest

Bus Strength

• Windows

• Windshield

• Doors

• Bus Structure Itself

Weakest

Strongest

Seat Removal

• Seats may be a main source of entanglement to victims.

Seat Removal

• Cut legs along aisle with cutters or reciprocating saw.

• Cut as low as possible.

Seat Removal

• Remove seat from wall with spreaders.

Window Removal• Easily removed.• Remove screws from

side windows on the interior.

• Remove post with reciprocating saw or hydraulic cutters.

• Cover sharp edges.– Blanket– Duct Tape

Windshield Removal

Roof Removal

• 2 layers of sheet metal to cut through

• Reciprocating saw• Air chisel• Circular saw• Halligan

Side Wall Removal

• Remove side windows.

• Disconnect batteries.• Reciprocating saw.• Look for coolant lines

along floor for auxiliary heaters.

Side Wall Removal

Side Wall Removal

Tail Light Door Cut

• Greater access• Hydraulic cutters• Reciprocating saw

Tail Light Door Cut• Remove glass.• Perform cuts; 1, 2,

3, & 4 with hydraulic cutters.

• Perform 5th cut with reciprocating saw.

1

2

3

45

Tail Light Door Cut

1

2

3

45

Tail Light Door Cut

Tail Light Door Cut

Victim Removal thru Roof

• Crib bus• Use existing openings• Use halligan to make

holes for roof ladder

Victim Removal thru Roof

Victim Removal thru Roof

Fireengineering.comTraining Minutes, season 2