Lear 45 operators approaching the 10-year life limit of the spindle (P/N 4527102103-001) have two options, to replace the spindle or the spindle assembly. Each option has its benefits and drawbacks.
This is accomplished via SB45-27-36 or SB40-27-20, as applicable, and requires machining the spindle. Machining will increase the downtime especially if the spindle is shipped out to a vendor for the machining work.
Replacing the spindle assembly (P/N 4527102095-009) accomplishes both the SB and life-limit requirements. The -009 assembly is more expensive than just the spindle, but it does not require the added downtime for machining. The mechanic can go from removal straight to installation of the new part without any intervening steps.
|Cable, Jerry - Accessory Tech Rep - Lincoln, NE (LNK). Aviation professional since 1991.
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