The U.S. aircraft register, updated daily
Parts

Spool Servo

No failure report names the spool servo. 2 FAA approvals let 1 company make a replacement spool servo, Vision Air INC holding the most (2).

Approved replacement parts 2 parts manufacturer approvals

A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a spool servo and sell it as an approved part for the models named. These are the companies holding such approvals for a spool servo:

For these models most: Bell 206 JetRanger and LongRanger (2).

MakerPartReplacesFitsGrantedStatus
Vision Air INCSpool Servo Actuator VA-C42641-31Ronson C42641-31Bell 206A, 206B1998-07-23current
Vision Air INCSpool Servo Actuator DWG No VA-C42641-31 Rev A dtd... VA-C42641-31Ronson C42641-31Bell 206A, 206B1996-05-05current

Sources: the FAA's service difficulty reports since 1995 (a report is a part that failed and was fixed, as filed by an airline, repair station or owner; the count shows reporting as much as reliability) and the parts manufacturer approvals in the FAA's Dynamic Regulatory System. The part name is the reporters' and the approval holders' own words, reduced to the first plain words so that spellings meet.