The U.S. aircraft register, updated daily
Parts

Stiffner

0 failure reports named the stiffner in the last ten years, 22 since 1995. 5 FAA approvals let 4 companies make a replacement stiffner, Airborne Maintenance & Engineering Services holding the most (2).

Reports by year

036101321995111352000
Reports by year, as a table
reports
19952
19961
19971
199913
20005

Approved replacement parts 5 parts manufacturer approvals

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

For these models most: Boeing 737 (2), Piper PA-30 Twin Comanche (1), Bell 206 JetRanger and LongRanger (1), Beechcraft B300 King Air 350 (1), Beechcraft B200 King Air B200 (1), Beechcraft A200 (1), Beechcraft 1900 Airliner (1).

MakerPartReplacesFitsGrantedStatus
Airborne Maintenance & Engineering ServicesSTIFFNER 0370-33-0010-130370-33-0010-13Boeing 737-7002022-07-11current
Airborne Maintenance & Engineering ServicesSTIFFNER 0370-33-0010-150370-33-0010-15Boeing 737-7002022-07-11current
Heritage Aviation LTDRight Stiffner 232-43002Modification PartBell 206-L41998-12-30current
Shadin Avionics (Name Change From Shadin Company 2/28/06)Stiffner, OAT Probe 543216Modification PartBeech Raytheon) (200, A200, B2001998-09-24current
Hughes Aviation SvcStiffner HRJ0603-9RayJay Industries RJ0603-9Piper PA-30, -391993-07-22current

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.