The U.S. aircraft register, updated daily
Parts · Heating, ice protection and utility systems

Flex Line

31 failure reports named the flex line in the last ten years, 114 since 1995, most often on the Boeing 757; the condition most often found was "leaking". 2 FAA approvals let 1 company make a replacement flex line, Scott Aviation (Now Avox Systems, INC.) holding the most (2).

Reports by year

02581019952001200720122017202342026
Reports by year, as a table
reports
19954
19966
19975
19982
19991
20011
20025
20035
20054
20065
20075
20084
20093
20104
201110
20126
20136
20145
20152
20162
20172
20182
20195
20213
20223
20231
20246
20253
20264

How it failed the condition found, last ten years

leaking19cracked4broken2ruptured2damaged1failed1faulty1torn1
Conditions found, as a table
reports
leaking19
cracked4
broken2
ruptured2
damaged1
failed1
faulty1
torn1

Engines most often reporting it

Approved replacement parts 2 parts manufacturer approvals

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

MakerPartReplacesFitsGrantedStatus
Scott Aviation (Now Avox Systems, INC.)Flex Line 50737-01Saab 9303733-001Saab Aircraft AB 20001996-02-29current
Scott Aviation (Now Avox Systems, INC.)Flex Line 50738-01Saab 9303734-001Saab Aircraft AB 20001996-02-29current

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.