The U.S. aircraft register, updated daily
Parts

Sundstrand Mk

No failure report names the sundstrand mk. 4 FAA approvals let 2 companies make a replacement sundstrand mk, New Systems holding the most (3).

Approved replacement parts 4 parts manufacturer approvals

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

For these models most: Learjet 55 (1), Embraer EMB-120 (1).

MakerPartReplacesFitsGrantedStatus
Learjet INCSundstrand Mk VII Ground Proximity Warning System (GPWS)... M100146ICTModification PartLearjet 55, 55B, 55C2004-12-20current
New SystemsSundstrand MK VI GPWS Kit 144-00-0002-1British Aerospace 3101, 31011994-07-31current
New SystemsSundstrand MK VI GPWS Kit 140-00-0002-1Beech Raytheon) (1900B, C1994-07-31current
New SystemsSundstrand MK VI GPWS Kit 133-00-0001-1Embraer Empresa EMB-1201993-05-17current

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.