The U.S. aircraft register, updated daily
Parts

Engine Condition

No failure report names the engine condition. 4 FAA approvals let 2 companies make a replacement engine condition, Whippany Actuation Systems LLC holding the most (2).

Approved replacement parts 4 parts manufacturer approvals

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

For these models most: Boeing 747 (4).

MakerPartReplacesFitsGrantedStatus
Whippany Actuation Systems LLCEngine Condition Control Actuator R4101-1SW60B96200-9The Boeing Company 747-200B Series, 747-200F Series2013-09-03current
Whippany Actuation Systems LLCEngine Condition Control Actuator R4101-360B96200-10The Boeing Company 747-100B Series, 747-100B SUD...2013-09-03current
Ge Aviation Systems LLC (Formerly Smiths Aerospace Actuation Systems)Engine Condition Control Actuator R4101-1SW60B96200-9Boeing 747-200B Series, 747-200F Series2008-05-08current
Ge Aviation Systems LLC (Formerly Smiths Aerospace Actuation Systems)Engine Condition Control Actuator R4101-360B96200-10Boeing 747-100B Series, 747-100B SUD...2008-05-08current

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.