TM 55-1520-228-BD
GENERAL INFORMATION
WARNING
Careful consideration shall be given
to the operation of the Identify
Friend or FOE (IFF), Mode 4,
avionics system.
Failure of the
IFF or failure to properly communi-
cate with area air defense command
prior to liftoff could result in an
attack from friendly forces due to
mistaken identity.
1-9.
TRAINING.
a. BDAR by its nature involves fixes,
bypasses, and/or jury-rigging, which is
outside authorized standard repairs, and
may degrade the inherent safety of the
helicopter.
Therefore, BDAR actions are
not intended to supplement, replace stan-
dard maintenance practices during peace-
time, nor should they be employed indis-
criminately to facilitate training.
b.
Repairs described in this manual,
which can be appropriately accomplished
in order to provide training, are listed
in Appendix E and are highlighted in each
repair chapters repair procedure index.
The trainable repair in the index will be
blocked
in.
Section III.
TASKS AND RESPONSIBILITIES
1-10. TAGGING/IDENTIFYING BDAR REPAIRS.
a. All damage will be identified on
aircraft inspection and maintenance
record, DA Form 2408-13 and DA Form
2408-18, as per DA PAM 738-751. See
Figures 1-1, 1-2.
b.
Recording of BDAR repairs and the
use of status symbols, as defined in DA
PAM 738-751, will be completed as soon
as practical to indicate any limita-
tions and restrictions or required stan-
dard repairs.
c. In addition to recording all
damage, the area damaged will be marked
on aircraft or component part using
damage assessment markings as shown in
Figure 1-3.
d.
Status Symbols. Status symbols
used in aircraft logbooks to record
defects are defined below.
(1) Red “X.”
A red “X” shows that
a defect exists and the aircraft is
unsafe for flight.
(2) Circled red “X.” A red “X”
inside a red circle indicates a limiting
defect.
The aircraft may be flown under
specific limits as directed by higher
authority, or as directed locally until
corrective action is taken.
(3) Red horizontal dash (-).
(a) This symbol indicates an
inspection,
special inspection, com-
ponent replacement, maintenance opera-
tional check, or test flight is needed.
The symbol is also used to indicate that
a normal modification work order (MWO)
is overdue.
(b) This symbol also shows that
the condition of the equipment is
unknown. A potentially dangerous con-
dition may exist.
The condition will be
corrected as soon as possible.
(4) Red diagonal (/). This symbol
indicates a defect exists that is not
serious enough to ground the aircraft.
1-5
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