The U.S. aircraft register, updated daily
Parts

Halogen Miniature

No failure report names the halogen miniature. 3 FAA approvals let 1 company make a replacement halogen miniature, Welch Allyn INC holding the most (3).

Approved replacement parts 3 parts manufacturer approvals

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

For these models most: Boeing 747 (2), Boeing 777 (1), Boeing 757 (1), Boeing 737 (1).

MakerPartReplacesFitsGrantedStatus
Welch Allyn INCHalogen Miniature Reading Lamp & Cockpit Lamp 998502-4 (998502-4-1)Boeing 2059XBoeing 747-400 Series, 777-200 Series,...2005-04-12current
Welch Allyn INCHalogen Miniature Reading Lamp & Cockpit Lamp 998502-8 (998502-8-1)Boeing 2059Boeing 747-400 Series2005-04-12current
Welch Allyn INCHalogen Miniature Reading Lamp & Cockpit Lamp 998502-10 (998502-10-1)Boeing 9204Boeing 737-600 Series, 737-700 Series,...2005-04-12current

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.