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Fracture along
primary structure.
AIRCRAFT DEBRIS MAY TUMBLE
SEVERAL TIMES BEFORE REACHING
ITS FINAL LOCATION AT THE SITE.
Table 3.7-2 Hazards Analysis Sketch (Sheet 2 of 2)
Impact Point
1. Identify site and plume direction.
2. Sight along the centerline of the wreckage path.
3. Locate 4 corners of debris.
4. Site entry control point (ECP).
5. Sketch crater or scar marks.
6. Identify major aircraft parts.
7. Identify composite parts.
8. Locate Hazards: see Table 3.7-7
9. Sketch bloodborne pathogen area
ACCURACY IS NOT NECESSARY!!!
3-72
TO 00-105E-9
Table 3.7-3 Major Aircraft Terminology Used at Crash Sites
* These items may be explosively loaded, use extreme caution.
3-73
Radome
Forward fuselage
Center fuselage
Aft fuselage
Horizontal tail or stabilizer
Vertical fin
Vertical Stabilizer
Stablator
Tail/Cone*
Rudder
Wing Box
Flaperon Leading Edge
FlapTrailing Edge Flap
Control surfaces
Canopy(s)*
Doors*
Hatches*
Emergency Exits*
Emergency Windows*
Panels*
Pylon*
Engine
Engine Air Inlet
Power train
Powerplant
Landing gear
Wheels/Brakes
Speedbreak
ThrottleFlight control equipment
Actuators
Accumulators
Hydraulic reservoir, gauges, or filter
Fuel pump
EPU
AOA
Tail hook
Warning System
Electrical System
Fuel System
Pneumatic System
Avionic
Fuel tank/cell
Missile
Gun
External stores
BDU
Ammunition Drum
Nitrogen Bottle
Hydrazine Bottle
Liquid Oxygen Bottle (LOX)
LATRIN
POD
Chaff/Flare Dispensers
Escape System pyrotechnics
- Shield Mild Detonating Cord
- Initiators (on seat and in cockpit)
- Explosive transfer sequencers
-- Mounted on panel or bulkhead
- Rocket catapult (behind seat)
- Rocket pack (under seat)
TO 00-105E-9
3-74
Table 3.7-4 Composite Assessment Questions
Composite Assessment Questions - Approximations are adequate
Location indoor
outdoor
Terrain description
Weather conditions at the time
of occurrence
wind direction, velocity,
temperature, description
Cause of damage Fire, physical, explosion
Fire conditions:
Where started
TypeAircraft location
SizeDuration
Ignition source
Major fuel source
Other burning materials
Fire extinguishment
Overhaul
In-flight, impact, other
Fireball, pool, smoldering
Material Damage(if hazards
sketch isn't available)
Description
Site distribution or spread
Work Process Type
Weather conditions at the time
of work process
wind direction , velocity
temperature, description
Air disturbances at the time of
work process
Other than weather
Weather Description
Hail
Sleet
Fog
Drizzle
Rain
Snow
Thunderstorm
Gusty wind
Freezing rain
Sunny
Composite form Terminology
Tape
Fabric
Layer
Stack
Filament wound
Solid laminate
Sandwich laminate
Corematerial
Fibers
Resin/matrix
Damaged Composite
Terminology
Fragment
Strips
Clusters
Fiber bundles
Dust
Single fibers
Scorched
Delaminated
Work Process
Overhaul
Visual Inspection
Cut, pry, saw, pound
Search & rescue
Cleanup
Sorting
Disposal
Other
TO 00-105E-9
Crater: Deep
Wreckage: Random parts within crater and
short wide distribution. Some parts may be
short of crater.
HIGH SPEED - HIGH ANGLE HIGH SPEED - LOW ANGLE
Aircraft skips
Crater: elongated and shallow.
Wreckage: Long narrow path.
Breakup from bottom to top. Heavy parts
furthest down range.
LOW SPEED - HIGH ANGLE LOW SPEED - LOW ANGLE
Centralized Wreckage.
Inertial Breakup.
Ground scars leading to wreckage.
Aircraft breakup along primary structure -
wing, tail, engine.
Impact forces may be survivable.
3-75
IMPACT POINT IMPACT POINT
IMPACT POINT
IMPACT POINT
Table 3.7-5 Mishap Impact Crater Signatures
TO 00-105E-9
3-76
ACTIVITY DEBRIS INFORMATIONWORK CONDITIONS PPE
Physical Damage
Fire
Smoldering
Overhaul
Explosion
Walking to the Site
Visual inspection with hand
movement
Cutting, prying, sawing, pounding
Search and Rescue
Site Clean-up
Picking pieces from topsoil
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