The U.S. aircraft register, updated daily
Parts

Thermo Switch

0 failure reports named the thermo switch in the last ten years, 2 since 1996. 3 FAA approvals let 2 companies make a replacement thermo switch, Rosemount Aerospace INC holding the most (2).

Reports by year

000111199611997
Reports by year, as a table
reports
19961
19971

Approved replacement parts 3 parts manufacturer approvals

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

For these models most: Boeing 767 (2), Boeing 757 (2), Boeing 747 (1).

MakerPartReplacesFitsGrantedStatus
Fenwal Safety SystemsThermo switch 18423-1118423-11Boeing 747SP Series, 747SR Series, 747-100 Series2004-09-28current
Rosemount Aerospace INCThermo Switch 1122364Boeing S271T454-1Boeing 757-200 Series, 767-200 Series,...2000-01-25current
Rosemount Aerospace INCThermo Switch 1122364Boeing P/N S271T454-1Boeing 757-200 Series, 767-200 Series,...2000-01-25current

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.