Normal Procedures
CSP
−
E
−
1
ROTORCRAFT FLIGHT MANUAL
MD 500E
(Model 369E)
Revision 15
4
−
5
FAA Approved
TAILBOOM/TAIL ROTOR
Tailboom
CHECK: NO DAMAGE
ALLOWED
Position and anti collision lights
CHECK
Stabilizers (vertical, horizontal and end plates)
CHECK: NO DAMAGE
ALLOWED
Tail skid
CHECK
Tail rotor gearbox attachment to tailboom for security and
condition
CHECK
Chip detector and wiring
CHECK
Control push−pull rod and bellcrank
CHECK
Tail rotor transmission oil level
CHECK
Output shaft dust cover, retainer nut, tang washer, rubber
bumper.
CHECK
Check for torque stripe paint across retainer nut, tang washer, and
fork assembly. If torque stripe on nut and tang washer is not in
line with stripe on drive fork, the tang washer inner key tang may
be sheared. Advise maintenance.
Tail rotor drive fork conical bearings (if installed):
Pivot tail rotor hub and fork through full range of travel
and check for axial play between the conical bearing
inner and outer races. No play is allowed.
CHECK
Tail rotor drive fork elastomeric bearings (if installed):
NOTE
:
Check bearing for general condition. Elastomeric bearings are suspected of
being unserviceable if rubber deterioration or separation, or a vibration is noted.
Evidence of light swelling, pock marks and crumbs are surface conditions and
are not indications of bearing failure.
Apply teetering force by hand to tail rotor blades
(stop−to−stop). Check for fork−to−bearing bond failure.
Failure is indicated by any motion between outer
bearing cage and fork (bearing turns in fork).
CHECK
Teeter blades stop−to−stop. Observe four radial molded
ridges on each bearing as teetering takes place. If ridges
assume continuous curved shape, bearings are intact.
Discontinuity in molded ridges indicates bearing failure.
CHECK
Tail rotor pitch bearing
Hold tail rotor hub firmly and check lead−lag play at tip
of each blade. Play in excess of approximately 0.25 in.
on either blade may not be acceptable.
CHECK FOR WEAR
Tail rotor blades and pitch links
CHECK
CAUTION
