The U.S. aircraft register, updated daily
Parts

Arm Ventral

No failure report names the arm ventral. 4 FAA approvals let 1 company make a replacement arm ventral, Alliance Aerospace Engineering INC holding the most (4).

Approved replacement parts 4 parts manufacturer approvals

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

For these models most: Mcdonnell Douglas DC-9 (4), Mcdonnell Douglas Aircraft Co MD-88 (4).

MakerPartReplacesFitsGrantedStatus
Alliance Aerospace Engineering INCArm Assy. Ventral Stairway Celing 10-D0975-14920975-1The Boeing Company DC-9-31, DC-9-32, DC-9-32F (C-9A2026-03-25current
Alliance Aerospace Engineering INCArm Assy. Ventral Stairway Celing 10-D0975-14920975-1The Boeing Company DC9-31, DC9-32, DC9-32F2024-11-19current
Alliance Aerospace Engineering INCArm Assy. Ventral Stairway Celing 10-D0975-14920975-1The Boeing Company DC9-31, DC9-32, DC9-32F2024-11-19current
Alliance Aerospace Engineering INCArm Assy. Ventral Stairway Ceiling AAE980-0975-14920975-1Boeing DC9-31, DC9-32, DC9-32F2018-03-29current

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.