The U.S. aircraft register, updated daily
Parts · Airframe structure

Threshold

966 failure reports named the threshold in the last ten years, 2,115 since 1995, most often on the Boeing 737; the condition most often found was "corroded". 78 FAA approvals let 17 companies make a replacement threshold, Spirit Aerosystems INC holding the most (19).

Reports by year

040801191591995200020052010201520202025362026
Reports by year, as a table
reports
199538
199625
199734
199814
199922
200064
200129
200229
200323
200425
200530
200649
200774
200846
200947
201054
201158
2012106
2013157
2014123
2015102
2016132
2017118
2018138
2019159
202089
202137
202261
202365
202480
202551
202636

Which system the reports file it under last ten years

Airframe structure953Cabin, seats and restraints13
Reports by system, as a table
reports
Airframe structure953
Cabin, seats and restraints13

Models most often reporting it last ten years

Boeing 737542Airbus A32068Bombardier CL-600 Challenger and CRJ59Airbus A31944Boeing 75742Embraer ERJ 170 E170 and E17537Bombardier DHC-8 Dash 8 and Q40032Embraer EMB-145 ERJ 14522Airbus A32120Boeing 71717Boeing 787 Dreamliner11Dehavilland DHC-811
Models most reported, as a table
reports
Boeing 737542
Airbus A32068
Bombardier CL-600 Challenger and CRJ59
Airbus A31944
Boeing 75742
Embraer ERJ 170 E170 and E17537
Bombardier DHC-8 Dash 8 and Q40032
Embraer EMB-145 ERJ 14522
Airbus A32120
Boeing 71717
Boeing 787 Dreamliner11
Dehavilland DHC-811

How it failed the condition found, last ten years

corroded743cracked132damaged18loose14out of adjust9unsecure9fod7dirty6dented3sticking3
Conditions found, as a table
reports
corroded743
cracked132
damaged18
loose14
out of adjust9
unsecure9
fod7
dirty6
dented3
sticking3

Engines most often reporting it

International Aero Engines V2522-A5 1International Aero Engines V2524-A5 1

Approved replacement parts 78 parts manufacturer approvals

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

Spirit Aerosystems INC 19Safran Cabin INC. 18Cascade Aviation Services INC 12Aws (USA) INC 6Triumph Interiors LLC (Formerly Aid International) 4Greenpoint Technologies INC 3Greenpoint Products & Services 3Bell Helicopter Textron INC (Formerly Aeronautical Accessories INC) 2Be Aerospace 2B/E Aerospace, INC 2Turbine Kinetics INC, A Heico Aerospace Company 1Jet Parts Engineering INC 1Flight Structures INC 1Exotic Metals Forming Company LLC 1Dassault Falcon Jet CORP 1Aviation Technical Services (Ats) 1Asap Corporation 1

For these models most: Boeing 737 (32), Bombardier CL-600 Challenger and CRJ (17), Boeing 747 (15), Mcdonnell Douglas DC-9 (4), Boeing 767 (2), Boeing 757 (2), Bell 412 (2), Dassault FALCON 50 (1), Boeing 777 (1), Boeing 727 (1), Boeing 707 (1), Airbus A319 (1).

MakerPartReplacesFitsGrantedStatus
Safran Cabin INC.Threshold Assy 9341205-5019341205-501MHI RJ Aviation ULC CL-600-2C10 ...2025-08-22current
Safran Cabin INC.Threshold Assy 9341205-5079341205-507MHI RJ Aviation ULC CL-600-2C10 ...2025-08-22current
Safran Cabin INC.Threshold Assy 9341205-5059341205-505MHI RJ Aviation ULC CL-600-2C10 ...2025-08-22current
Safran Cabin INC.Threshold Assy 9341205-5039341205-503MHI RJ Aviation ULC CL-600-2C10 ...2025-08-22current
Safran Cabin INC.Threshold Assy A417205-501A417205-501MHI RJ Aviation ULC CL-600-2D24 (Regional Jet Series 900)2025-08-22current
Safran Cabin INC.Threshold Assy A418133-501A418133-501MHI RJ Aviation ULC CL-600-2D24 (Regional Jet Series 900)2025-08-22current
Safran Cabin INC.THRESHOLD ASSY 9341205-5019341205-501MHI RJ Aviation ULC CL-600-2C10 SERIES 7002025-08-22current
Safran Cabin INC.THRESHOLD ASSY 9341205-5039341205-503MHI RJ Aviation ULC CL-600-2C10 SERIES 7002025-08-22current
Safran Cabin INC.THRESHOLD ASSY 9341205-5059341205-505MHI RJ Aviation ULC CL-600-2C10 SERIES 7002025-08-22current
Safran Cabin INC.THRESHOLD ASSY 9341205-5079341205-507MHI RJ Aviation ULC CL-600-2C10 SERIES 7002025-08-22current
Safran Cabin INC.Threshold Assy A417205-501A417205-501MHI RJ Aviation ULC CL-600-2D24 (Regional Jet series 900)2025-08-18current
Safran Cabin INC.Threshold Assy 9341205-5019341205-501MHI RJ Aviation ULC CL-600-2C10 (Regional Jet series 700)2025-08-18current
Safran Cabin INC.Threshold Assy 9341205-5039341205-503MHI RJ Aviation ULC CL-600-2C10 (Regional Jet series 700)2025-08-18current
Safran Cabin INC.Threshold B831155-5AABBVB831155-5AABBVAirbus S.A.S A380-841, A380-842, A380-8612025-08-18current
Safran Cabin INC.Threshold Assy 9341205HG5019341205HG501MHI RJ Aviation ULC CL-600-2C10 (Regional Jet Series...2025-08-18current
Safran Cabin INC.Threshold Assy A417205-501A417205-501MHI RJ Aviation ULC CL-600-2D24 (Regional Jet series 900)2025-08-06current
Safran Cabin INC.Threshold Assy 9341205-5019341205-501MHI RJ Aviation ULC CL-600-2C10 (Regional Jet series 700)2025-08-06current
Safran Cabin INC.Threshold Assy 9341205-5039341205-503MHI RJ Aviation ULC CL-600-2C10 (Regional Jet series 700)2025-08-06current
Jet Parts Engineering INCThreshold BAC1522-697JPBAC1522-697Boeing 707-300 Series, 707-400 Series,...2019-11-18current
Aviation Technical Services (Ats)THRESHOLD 721546-249-301Modification partAirbus A319-1122017-03-27current
Cascade Aviation Services INCThreshold G77902059-105G77902059-105Boeing 737-7002016-05-25current
Cascade Aviation Services INCThreshold G77902059-107G77902059-107Boeing 737-7002016-05-25current
Cascade Aviation Services INCThreshold G80882032-13G80882032-13Boeing 737-7002016-05-25current
Cascade Aviation Services INCThreshold G77902059-109G77902059-109Boeing 737-7002016-05-25current
Cascade Aviation Services INCThreshold G80882032-15G80882032-15Boeing 737-7002016-05-25current
Cascade Aviation Services INCThreshold G77902059-103G77902059-103Boeing 737-7002016-05-25current
Spirit Aerosystems INCThreshold 144U8300Y2144U8300Y2Boeing 747-400 SERIES2015-08-16current
Spirit Aerosystems INCThreshold 144U8300Y1144U8300Y1Boeing 747-400 SERIES2015-08-16current
Greenpoint Technologies INCThreshold G80882032-3G80882032-3Boeing 737-700 Series2015-03-15current
Greenpoint Technologies INCThreshold G80882032-5G80882032-5Boeing 737-700 Series2015-03-15current
Greenpoint Technologies INCThreshold G80882032-1G80882032-1Boeing 737-700 Series2015-03-15current
Dassault Falcon Jet CORPThreshold Assy F50-51123-93Modification PartDassault Aviation Falcon 502014-10-09current
Spirit Aerosystems INCTHRESHOLD ASSY 147A8920U21147A8920-21Boeing 737-600 SERIES, 737-700 SERIES,...2014-03-11current
Spirit Aerosystems INCTHRESHOLD ASSY 147A8920Y21147A8920-21Boeing 737-600 SERIES, 737-700 SERIES,...2014-03-11current
B/E Aerospace, INCASSY THRESHOLD 3PAF00595033PAF0059503AIRBUS A380-8412014-01-26current
B/E Aerospace, INCTHRESHOLD 3PAM00925033PAM0092503BOEING B777-200LR, -300ER SERIES2013-12-04current
Turbine Kinetics INC, A Heico Aerospace CompanyThreshold 414U3075-17CCKT414U3075-17CCBoeing 737-700 Series, 737-800 Series,...2013-10-16current
Bell Helicopter Textron INC (Formerly Aeronautical Accessories INC)Threshold 412-070-551-101412-070-551-101Bell Helicopter Textron Inc. 4122011-08-04current
Bell Helicopter Textron INC (Formerly Aeronautical Accessories INC)Threshold 412-070-551-102412-070-551-102Bell Helicopter Textron Inc. 4122011-08-04current
Greenpoint Products & ServicesThreshold G80882032-5G80882032-5Boeing 737-700 Series2010-12-01current
Greenpoint Products & ServicesThreshold G80882032-3G80882032-3Boeing 737-700 Series2010-12-01current
Greenpoint Products & ServicesThreshold G80882032-1G80882032-1Boeing 737-700 Series2010-12-01current
Spirit Aerosystems INCTHRESHOLD 414T3075-7E414T3075-7EBoeing 767-300 SERIES2010-07-22current
Be AerospaceTHRESHOLD ASSY 3PAM00925033PAM0092503Boeing 777-300ER Series2010-02-07current
Aws (USA) INCTHRESHOLD ASSY 65B05048-11(65B05048-11)Boeing 747-100 SERIES, 747-100B SERIES,...2009-07-26current
Aws (USA) INCTHRESHOLD 414T3204-61(414T3204-61)Boeing 767-200 SERIES, 767-300 SERIES2009-07-26current
Spirit Aerosystems INCTHRESHOLD 654U6625-1860654U6625-1860Boeing 747-100B SERIES, 747-100B SUD...2009-07-22current
Spirit Aerosystems INCTHRESHOLD 65-45859Y1465-45859-14Boeing 737-200 SERIES, 737-300 SERIES,...2009-06-14current
Cascade Aviation Services INCThreshold G80882032-13, G80882032-15G80882032-13, G80882032-15Boeing 737-7002009-05-04current
Cascade Aviation Services INCThreshold G77902059-109G77902059-109Boeing 737-7002009-05-04current
Cascade Aviation Services INCThreshold G77902059-107G77902059-107Boeing 737-7002009-05-04current
Cascade Aviation Services INCThreshold G77902059-103G77902059-103Boeing 737-7002009-05-04current
Cascade Aviation Services INCThreshold G77902059-105G77902059-105Boeing 737-7002009-05-04current
Aws (USA) INCTHRESHOLD 65-45859-14(65-45859-14)Boeing 737-200 SERIES, 737-300 SERIES,...2009-04-27current
Aws (USA) INCTHRESHOLD 65-45859-13(65-45859-13)Boeing 737-200 SERIES, 737-200C SERIES,...2009-04-27current
Aws (USA) INCTHRESHOLD 65-45859-18(65-4859-18)Boeing 737-300 SERIES, 737-400 SERIES,...2009-04-27current
Aws (USA) INCTHRESHOLD 65-45859-17(65-45859-17)Boeing 737-300 SERIES, 737-400 SERIES,...2009-04-27current
Spirit Aerosystems INCTHRESHOLD ASSY 147A8920U21147A8920-21Boeing 737-600 SERIES, 737-700 SERIES,...2008-10-06current
Spirit Aerosystems INCTHRESHOLD ASSY 147A8920-21147A8920-21Boeing 737-600 SERIES, 737-700 SERIES,...2008-10-06current
Spirit Aerosystems INCTHRESHOLD ASSY 147A8920Y21147A8920-21Boeing 737-600 SERIES, 737-700 SERIES,...2008-10-06current
Asap CorporationThreshold G80882032-1, G80882032-3,...G80882032-1, G80882032-3, G80882032-5Boeing 737-7002007-10-22current
Exotic Metals Forming Company LLCTHRESHOLD ASSY 65-55878-1065-55878-10BOEING 737-300 SERIES2007-07-10current
Be AerospaceThreshold Assy 3PAM00925013PAM0092501Boeing B777-300ER2007-06-12current
Spirit Aerosystems INCTHRESHOLD 65B10023Y6565B10023-65Boeing 747-100B SERIES, 747-100B SUD...2007-03-19current
Spirit Aerosystems INCTHRESHOLD 65B10023Y6665B10023-66Boeing 747-100B SERIES, 747-100B SUD...2007-03-19current
Spirit Aerosystems INCTHRESHOLD 65B10023-6665B10023-66Boeing 747-100B SERIES, 747-100B SUD...2007-03-02current
Spirit Aerosystems INCTHRESHOLD 65B10023-6565B10023-65Boeing 747-100B SERIES, 747-100B SUD...2007-03-02current
Cascade Aviation Services INCThreshold G80882032-13, G80882032-15G80882032-13, G80882032-15Boeing 737-7002007-02-15current
Spirit Aerosystems INCTHRESHOLD 65B10023Y6565B10023-65Boeing 747-100B SERIES, 747-100B SUD...2006-10-10current
Spirit Aerosystems INCTHRESHOLD 65B10023Y6665B10023-66Boeing 747-100B SERIES, 747-100B SUD...2006-10-10current
Spirit Aerosystems INCTHRESHOLD 65B10023-6565B10023-65Boeing 747-100B SERIES, 747-100B SUD...2006-02-15current
Spirit Aerosystems INCThreshold 144U8300-1144U8300-1Boeing 747-400 Series2005-12-12current
Spirit Aerosystems INCThreshold 144U8300-2144U8300-2Boeing 747-400 Series2005-12-12current
Flight Structures INCTHRESHOLD,STRUCTURE,RECON 98FS818113- ( )MODIFICATION PARTBoeing 747-4001999-12-21current
Triumph Interiors LLC (Formerly Aid International)Threshold 5956511-49McDonnell Douglas DC-9, MD-801991-06-25current
Triumph Interiors LLC (Formerly Aid International)Threshold Assembly 5956511-5McDonnell Douglas DC-9, MD-801991-06-25current
Triumph Interiors LLC (Formerly Aid International)Threshold Assembly 5956511-43McDonnell Douglas DC-9, MD-801991-06-25current
Triumph Interiors LLC (Formerly Aid International)Threshold 5956511-11McDonnell Douglas DC-9, MD-801991-06-25current

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.