The U.S. aircraft register, updated daily
Parts · Landing gear

Caliper

8 failure reports named the caliper in the last ten years, 69 since 1995, most often on the Cessna 208 Caravan; the condition most often found was "broken". 10 FAA approvals let 2 companies make a replacement caliper, Northwest Dynamics, INC. holding the most (6).

Reports by year

0368111995200220102016202322024
Reports by year, as a table
reports
19952
19962
19983
19994
20014
20024
20038
20042
20055
20062
20103
20123
20132
20146
201511
20161
20171
20191
20201
20211
20231
20242

Which system the reports file it under last ten years

Reports by system, as a table
reports
Landing gear7
Rotorcraft systems1

How it failed the condition found, last ten years

broken3leaking2dragging1locked1torn1
Conditions found, as a table
reports
broken3
leaking2
dragging1
locked1
torn1

Engines most often reporting it

Approved replacement parts 10 parts manufacturer approvals

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

For these models most: North American T-6 Texan (3), North American AT-6 Texan (3), Bell 429 (2), Bell 407 (2), Bell 505 (1), Bell 206 JetRanger and LongRanger (1).

MakerPartReplacesFitsGrantedStatus
Air Repair INCCaliper Assembly 943-791-01943-791-01Boeing Stearman 75 Series2023-03-30current
Air Repair INCCaliper Assembly 2174-970-RH2174-970-RHNorth American BC-1A, AT-6, AT6- (SNJ-2)2023-03-30current
Air Repair INCCaliper Assembly 2174-970-LH2174-970-LHNorth American BC-1A, AT-6, AT6- (SNJ-2)2023-03-30current
Air Repair INCCaliper Assembly 2174-970-C2174-970-CNorth American BC-1A, AT-6, AT6- (SNJ-2)2023-03-30current
Northwest Dynamics, INC.Caliper Assembly B0249-4B0249-4Bell 5052021-06-08current
Northwest Dynamics, INC.Caliper Assembly B0238-2427-340-352-112Bell 4292015-03-08current
Northwest Dynamics, INC.Caliper Assembly B0244-1427-340-352-113Bell 4072015-03-08current
Northwest Dynamics, INC.Caliper Assembly B0238-1427-340-352-111Bell 4292015-03-08current
Northwest Dynamics, INC.Caliper Assembly B0223-4407-340-302-103Bell 4072014-08-10current
Northwest Dynamics, INC.Caliper Assembly B0223-2206-340-301-103Bell 206L-42014-08-10current

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.