737 MAX Flight Crew Operations Manual
Warning Systems -
System Description
MN-FLT-OH-201
15.20.35
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Tail Skid
The tail skid assembly consists of a cartridge assembly, tail skid, fairing (skirt) and
shoe. The fairing provides an enclosure for the actual tail skid structure. The shoe
is fitted to the bottom of the fairing.
The cartridge assembly consists of a crushable honeycomb material. When the tail
skid strikes the runway the skid moves upward and the honeycomb material
crushes. The tail skid is serviceable when the cartridge warning decal shows both
green and red. The green disappears gradually as the cartridge is crushed. When
the warning decal is all red, the cartridge must be replaced.
The shoe is what contacts the runway in the event of an over rotation. The shoe
surface displays “wear dimples” which serve as a reference for shoe replacement.
1B401, 1B402, 1B801 - 1B824
The two-position tail skid (as installed) is powered by hydraulic system A. It is
extended for landing and retracted for takeoff.
CAUTION: Cartridge assembly warning placard must be checked as soon
as possible after the tail strike. The tail skid skirt fairing may
re-extend due to gravity as time passes resulting in a reading
error on the warning placard decal.
October 26, 2021