The U.S. aircraft register, updated daily
Parts · Flight controls

Tension Spring

5 failure reports named the tension spring in the last ten years, 9 since 2004, most often on the Cessna 172 Skyhawk; the condition most often found was "broken". 16 FAA approvals let 7 companies make a replacement tension spring, Rotair Industries INC holding the most (4).

Reports by year

012231200411113202012021
Reports by year, as a table
reports
20041
20111
20121
20151
20161
20203
20211

Which system the reports file it under last ten years

Flight controls3Engine1Landing gear1
Reports by system, as a table
reports
Flight controls3
Engine1
Landing gear1

Models most often reporting it last ten years

Cessna 172 Skyhawk1Cessna 560 Citation V, Ultra, Encore and Excel1Grob Aircraft Ag G1201Piper PA-44 Seminole1
Models most reported, as a table
reports
Cessna 172 Skyhawk1
Cessna 560 Citation V, Ultra, Encore and Excel1
Grob Aircraft Ag G1201
Piper PA-44 Seminole1

How it failed the condition found, last ten years

broken2displaced1not reported1stiff1
Conditions found, as a table
reports
broken2
displaced1
not reported1
stiff1

Engines most often reporting it

Lycoming AEIO-540 series 1Lycoming O-320-H2AD 1

Approved replacement parts 16 parts manufacturer approvals

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

Rotair Industries INC 4Aviation Materials Management INC 4Gemini Engineering 2Aviation Materials Management, INC. 2Aviation Materials Management, INC 2Gulfstream Aerospace LP 1Galaxy Aerospace CO LP 1

For these models most: Boeing 767 (10), Sikorsky S-61 (3), Israel Aircraft Industries ASTRA SPX (2), Israel Aircraft Industries 1125 (2), Sikorsky S-64 (1), Sikorsky S-58 (1), Boeing 757 (1).

MakerPartReplacesFitsGrantedStatus
Aviation Materials Management, INCTension Spring 251T3756-2251T3756-2Boeing 767-200 Series, 767-300 Series,...2015-02-12current
Aviation Materials Management, INCTension Spring 251T1211-1251T1211-1Boeing 767-200 Series, 767-300 Series2015-02-12current
Aviation Materials Management, INC.Tension Spring 251T3756-2251T3756-2Boeing 767-200 Series, 767-300 Series,...2014-09-04current
Aviation Materials Management, INC.Tension Spring 251T1211-1251T1211-1Boeing 767-200 Series, 767-300 Series2014-09-04current
Aviation Materials Management INCTension Spring 251T1211-1251T1211-1Boeing 767-200 Series, 767-300 Series2013-03-24current
Aviation Materials Management INCTension Spring 251T3756-2251T3756-2Boeing 767-200 Series, 767-300 Series,...2013-02-26current
Aviation Materials Management INCTension Spring 251T3756-2251T3756-2Boeing 767-200 Series, 767-300 Series,...2010-10-05current
Aviation Materials Management INCTension Spring 251T1211-1251T1211-1Boeing 767-200 Series, 767-300 Series2010-08-08current
Gemini EngineeringTENSION SPRING 251T1231-1251T1231-1Boeing 767-200 Series, 767-300 Series2009-06-03current
Gemini EngineeringTENSION SPRING-LG 251T3226-1251T3226-1Boeing 757-200 Series, 757-200CB Series,...2009-06-03current
Gulfstream Aerospace LPTension Spring 25W331282-003IAI 25W331282-003Israel 1125 Westwind Astra, Astra SPX2001-06-06current
Galaxy Aerospace CO LPTension Spring 25W331282-003IAI 25W331282-003Israel 1125 Westwind Astra, Astra SPX2001-05-08current
Rotair Industries INCTension Spring R6110-25088-0S6110-25088-0Sikorsky S61A/D (T.C.H2EA) S61L/N/NM/R (T.C.1H15)1992-12-31current
Rotair Industries INCTension Spring R6110-25088S6110-25088Sikorsky S-61L, S-61N, S-61NM1992-09-29current
Rotair Industries INCTension Spring R1510-25018S1510-25018Sikorsky S-64A1992-09-29current
Rotair Industries INCTension Spring R1520-61987S1520-61987Sikorsky S-58B, S-58C, S-61N1992-06-30current

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.