Bell OH-58 C, Technical Manual

Page: 59 / 333

TM 55-1520-228-BD
AIRFRAME
d. The type, extent, and variation of
damage under condition 3 does not per-
mit categorization of the many com-
binations of damage. Self-recovery, if
considered, will depend on the extent
and type of damage, type of terrain,
distance, and urgency of the situation.
If judgment and experience indicate
self-recovery is feasible, it should be
accomplished at minimum weight, altitude
and airspeed with an occasional stop to
check on the condition of the aircraft.
4-10. REPAIR PLAN.
a. The damage measurements and ini-
tial repair data obtained from the
detail assessment must be organized and
formulated into a repair plan.
b. Repair requirements including
cleanup/smoothing, condition, and
repair times should be recorded on DA
Form 2404.
c. If the worst case is better than
condition 1, repair may be deferred
except for cleanup and smoothing of all
rough edges. The ends of all cracks
must be stop drilled.
d. If the worst case is between
condition 1 and 2, a decision must be
made to degrade the aircraft to
condition 2 or to repair the aircraft
and restore it to condition 1.
(1) If the aircraft is degraded to
condition 2 and is to perform a recovery
flight, severe damage should be cleaned-
up, rough edges smoothed, and cracks
stop drilled.
(2) If it is decided to restore
the aircraft to condition 1,
(a) determine the required
repairs for all damaged structural
elements that are below condition 1.
(b) Repairs on damaged struc-
tural elements that are better than
condition 1 may be deferred except for
cleanup and smoothing.
e. If the worst case is between
condition 2 and 3, a decision must be
made to degrade the aircraft to
condition 3 or to repair the aircraft
and restore it either to condition 1
or 2. An aircraft in this condition is
probably so badly damaged that it may
not be restored to condition 1 within
the available time.
However, every
effort should be made to restore it to
condition 2 or better if at all possible
for recovery.
(1) If the aircraft is degraded to
condition 3, no repair is required.
(2) If it is decided to restore
the aircraft to condition 2,
(a) determine the required
repairs for all damaged structured
elements that are below condition 2.
(b) Repairs on damaged struc-
tural elements that are better than
condition 2 may be deferred except for
some cleanup and smoothing of the badly
damaged areas.
(3) If it is decided to restore
the aircraft to condition 1,
(a) determine the required
repairs for all structural elements that
are below condition 1.
(b) Repairs on damaged struc-
tural elements that are better than
condition 1 may be deferred except for
cleanup and smoothing.
f. Once all decisions are made and a
repair plan formulated, complete repairs.
Attach DA Form 2404 to DA Form 2408-13
and indicate deferred repairs on DA
Form 2408-13.
4-15