AD NUMBER: 2007-22-06
SUBJECT: Airworthiness Directive 2007-22-06 SUMMARY: We are adopting a
new airworthiness directive (AD) for the products listed above.
This AD results from mandatory continuing airworthiness information
(MCAI) originated by an aviation authority ofanother country to
identify and correct an unsafe condition on an aviation product.
The MCAI describes the unsafe condition as: Over the years, several
Fokker 100 (F28 Mark 0100) operators reported that a MLG (main
landing gear) wheel fell off during regular operation of the
aircraft. These incidents occurred due to a missing spacer, which
had inadvertently not been installed during a previous wheel
change. Omitting the installation of the wheel spacer allows the
wheel to move sideways along the axle, which subsequently leads to
bearing failure, followed by loss of the wheel. This condition, if
not corrected, could conceivably result in loss of control of the
aircraft during the takeoff run, landing rollout or taxiing