BHT-407-MM-1
5-00-00
Page 58
Rev. 38 4 OCT 2013
Export Classification C, ECCN EAR99
Chapters 63 and 65
DRIVE TRAIN SYSTEM
1.
If any of the conditions described below are noted, then the
affected components must be sent to an approved facility for
overhaul. Put a tag on each component and write, “THIS
COMPONENT WAS REMOVED FROM SERVICE BECAUSE
OF A HARD LANDING.”
a.
Signs of damage to the mast, transmission, freewheel,
tail rotor driveshafts, or to the tail rotor gearbox, if caused by the
hard landing.
b.
Metal is collected on the chip detector of the
transmission, freewheel, or the tail rotor gearbox.
c.
Signs of damage to the structure around the
transmission mounting points (four elastomeric mounts at the
corners of the top case and two elastomeric mounts at the
bottom of the main case, one on each side). Use a 10X power
magnifying glass and look for cracks, deformation, or movement
of the attachment fittings.
d.
Signs of damage to the roof structure where the side
beams attach to the roof.
e.
Examine for loose attaching hardware in the locations
that follow:
(1)
Transmission
.
(2)
Engine to transmission driveshaft.
(3)
Tail rotor gearbox.
(4)
Tail rotor driveshafts.
f.
Examine the corner mounts for condition.
g.
Examine the pylon stop deck fittings for condition.
h.
Examine the engine to transmission driveshaft
assembly for signs of damage caused by the hard landing.
Remove and discard damaged engine to transmission
driveshaft assembly.
CONDITIONAL INSPECTIONS
5-27. HARD LANDING (CONT)
DATA REFERENCE
INSPECTION TASK DESCRIPTION
INITIAL
MECH OTHER
