The U.S. aircraft register, updated daily
Parts

Line Pipe

No failure report names the line pipe. 5 FAA approvals let 1 company make a replacement line pipe, Cox and Company INC holding the most (5).

Approved replacement parts 5 parts manufacturer approvals

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

For these models most: Mcdonnell Douglas DC-9 (4), Mcdonnell Douglas Aircraft Co MD-88 (3).

MakerPartReplacesFitsGrantedStatus
Cox and Company INCInner Line Pipe Heater 3046-243046-24McDonnell Douglas DC-9-81(MD-81), DC-9-82(MD-82),...2006-06-13current
Cox and Company INCInner Line Pipe Heater 3046-123046-12McDonnell Douglas DC-9-81(MD-81), DC-9-82(MD-82),...2006-06-13current
Cox and Company INCInner Line Pipe Heater 3046-223046-22McDonnell Douglas DC-9-81(MD-81), DC-9-82(MD-82),...2006-06-13current
Cox and Company INCInner Line Pipe Heater 3046-113046-11McDonnell Douglas DC-9-81(MD-81), DC-9-82(MD-82),...2006-06-13current
Cox and Company INCInner Line Pipe Heater 3046-273046-27McDonnell Douglas MD-90-302006-06-13current

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.