The U.S. aircraft register, updated daily
Parts

Side Door

No failure report names the side door. 15 FAA approvals let 4 companies make a replacement side door, Selkirk Aviation INC holding the most (6).

Approved replacement parts 15 parts manufacturer approvals

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

For these models most: Cessna 182 Skylane (10), Cessna 170 (10), Cessna 185 Skywagon (8), Cessna 180 Skywagon (8), Cessna 175 Skylark (8), Cessna 172 Skyhawk (4), Boeing 777 (4), Piper PA-18 Super Cub (1).

MakerPartReplacesFitsGrantedStatus
Airglas INCSide Door LC18XL-2Modification PartPiper Aircraft, Inc. PA-18 150, PA-18A150, PA-18S 1502018-02-12current
Selkirk Aviation INC.Left & Right Side Front Door Post SA55-02Modification PartCessna 170B S/Ns 20267-26996 (1952-56),...2010-05-16current
Selkirk Aviation INC.Left & Right Side Door Panel SA55-05Modification PartCessna 170B S/Ns 20267-26996 (1952-56),...2010-05-16current
Selkirk Aviation INC.Left & Right Side Door Panel SA55-06Modification PartCessna 170B S/Ns 20267-26996 (1952-56),...2010-05-16current
Selkirk Aviation INC.Left & Right Side Front Door Post SA55-01Modification PartCessna 170B S/Ns 20267-26996 (1952-56),...2010-05-16current
Goodrich CorporationSIDE DOOR SILL B ASSEMBLY 77FT001-2S457W100-1Boeing 777F Series2009-05-17current
Goodrich CorporationSIDE DOOR SILL B ASSEMBLY 77FT001-1S457W100-1Boeing 777F Series2009-05-17current
Goodrich CorporationSIDE DOOR SILL A ASSEMBLY 77FT000-1S457W100-1Boeing 777F Series2009-05-17current
Goodrich CorporationSIDE DOOR SILL A ASSEMBLY 77FT000-2S457W100-1Boeing 777F Series2009-05-17current
Selkirk Aviation INCLeft & Right Side Front Door Post SA55-01, SA55-02Modification PartCessna 182 S/Ns 3300-52358 (1956-59) S/Ns...2001-01-03current
Selkirk Aviation INCLeft & Right Side Door Panel SA55-05, SA55-06Modification PartsCessna 182 S/Ns 3300-52358 (1956-59) S/Ns...2001-01-03current
Selkirk Aviation INCLeft Side Front Door Post SA55-01Modification PartCessna 170B S/Ns 20267-26996 (1952-56) 172...1999-05-04current
Selkirk Aviation INCRight Side Door Panel SA55-06Modification PartCessna 182 S/Ns 3300-52358 (1956-59), S/Ns...1999-05-04current
Selkirk Aviation INCRight Side Front Door Post SA55-02Modification PartCessna 170B S/Ns 20267-26996 (1952-56) 172...1999-05-04current
Selkirk Aviation INCLeft Side Door Panel SA55-05Modification PartCessna 180 S/Ns 30640-18051312 (1954-63),...1999-05-04current

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.