The U.S. aircraft register, updated daily
Parts

Sill Installation

No failure report names the sill installation. 8 FAA approvals let 3 companies make a replacement sill installation, Airborne Maintenance & Engineering Services holding the most (4).

Approved replacement parts 8 parts manufacturer approvals

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

For these models most: Boeing 737 (4), Boeing 757 (2), Boeing 747 (2).

MakerPartReplacesFitsGrantedStatus
Airborne Maintenance & Engineering ServicesSill Installation, Strap (9G Net) 0370-53-0200-490370-53-0200-49Boeing 737-7002022-04-25current
Airborne Maintenance & Engineering ServicesSill Installation, Strap 0370-53-0200-390370-53-0200-39Boeing 737-7002022-04-25current
Airborne Maintenance & Engineering ServicesSill Installation, Strap (9G Bulkhead) 0370-53-0200-590370-53-0200-59Boeing 737-7002022-04-25current
Airborne Maintenance & Engineering ServicesSill Installation, Strap 0370-53-0200-290370-53-0200-29Boeing 737-7002022-04-25current
Goodrich CorporationSill Assembly Installation Kit 7M3T200-27M3T200-2Boeing 747-400F2020-08-16current
Goodrich CorporationSill Assembly Installation Kit 7M3T200-17M3T200-1Boeing 747-400F2020-08-16current
Precision Conversions LLCUpper Sill Installation, Crew Entry Door 007F6384Modification PartBoeing 757-200 Series2007-12-10current
Precision Conversions LLCLower Sill Installation, Crew Entry Door 007F6385Modification PartBoeing 757-200 Series2007-12-10current

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.