The U.S. aircraft register, updated daily
Parts · Engine

Rocker Shaft

2 failure reports named the rocker shaft in the last ten years, 16 since 1995, most often on the Lockheed P2; the condition most often found was "failed". 3 FAA approvals let 2 companies make a replacement rocker shaft, Superior Air Parts INC holding the most (2).

Reports by year

0123431995222142007112018
Reports by year, as a table
reports
19953
19962
19972
19982
20021
20074
20171
20181

Which system the reports file it under last ten years

Reports by system, as a table
reports
Engine2

Models most often reporting it last ten years

Models most reported, as a table
reports
Lockheed P21
Robinson R441

How it failed the condition found, last ten years

failed1loose1
Conditions found, as a table
reports
failed1
loose1

Engines most often reporting it

Approved replacement parts 3 parts manufacturer approvals

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

MakerPartReplacesFitsGrantedStatus
Superior Air Parts INCRocker Shaft SA539740P/N 539740, P/N 648000, P/N 652984, P/N...Continental Motors O-470-B, -B-CI, -G2014-08-26current
Ram Aircraft Limited PartnershipRocker Shaft 1385-1TCM 652984, 648000, or 539740Teledyne Continental TSIO-520-B, -BB, -C2000-03-06current
Superior Air Parts INCRocker Shaft SA539740Teledyne Continental 539740Teledyne Continental TSIO-520-AF, B, BB1993-11-15current

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.