TM 55-1520-228-BD
GENERAL INFORMATION
System identification markings are primarily abbreviations of the system.
MARKINGS SYSTEM/MEANING
Sys
Damage to unknown system.
Fuel Fuel
Hyd
Hydraulic
HP
High Pressure
LP
Low Pressure
Elect
Electrical
AV
Avionics
Flt Cont Flight Control
Main Rotor Main Rotor Group
Tail Rotor Tail Rotor Group
Air Pneumatic
Air Cond Air Conditioning
BL Air Bleed Air System
BLC
Boundary Layer Control
N
2
Nitrogen
O
2
Oxygen
Eng Contr Engine Control
Pow Tr Power Train
EJ
Ejection
NOTE
More than one identification marking may be used to describe
the system (e.g., HP, Hyd).
Figure 1-3. Damage Assessment Markings (Sheet 3 of 3)
1-11/(1-12 Blank)
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