Table 7-16.
Malfunction Details Continued
Indications presented
Required
Aircraft indications
Ref
Corrective
to instructor/operator
malfunction
number
and related effects
and trainee
action
MRTR OUT
22520
One blade flaps at a
Noncorrectable
Instructor: MRTR OUT OF TRK
OF TRK
different angle from the
appears on CRT.
others due to structural
warping or bending.
Trainee: Motion indicating
cycling pitch and roll oscil-
lation at main rotor frequen-
cy.
MRTR OUT
Center-of-gravity of rotor
22521
Noncorrectable
Instructor: MRTR OUT OF BAL
OF BAL
does not coincide with
appears on CRT.
center of hub due to broken
blade or other mass
Trainee: Severe vibration
imbalance.
at rotor frequency trans-
mitted via motion.
Blade damper for main rotor
BLADE
22522
Noncorrectable
Instructor: BLADE DAMPER
becomes inoperative due to
DAMPER
appears on CRT.
separation of bonded rubber
from either inside or
Lateral oscilla-
Trainee
outside plates of damper.
tion ranging in frequency
from 0 to 5 Hz proportional
to main rotor rpm. Ampli-
tude of oscillation is 0.2
inch.
22523
RTR BK
Rotor brake engaged in
Noncorrectable
Instructor. RTR BK ENG FLT
flight.
ENG FLT
appears on CRT.
Trainee: ROTOR BRAKE cau-
tion light illuminates.