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

Longeron

1,498 failure reports named the longeron in the last ten years, 8,472 since 1995, most often on the Mcdonnell Douglas MD-11; the condition most often found was "corroded". 57 FAA approvals let 8 companies make a replacement longeron, Spirit Aerosystems INC holding the most (30). The reports call it "longeron", "longeron assy", "longeron 22/23l".

Reports by year

01262523795051995200020052010201520202025412026
Reports by year, as a table
reports
1995474
1996486
1997505
1998502
1999454
2000484
2001401
2002335
2003207
2004238
2005245
2006204
2007279
2008164
2009212
2010284
2011289
2012317
2013319
2014209
2015366
2016428
2017229
2018110
2019152
2020118
202192
202289
202336
2024105
202598
202641

Which system the reports file it under last ten years

Airframe structure1,487Engine10Cabin, seats and restraints1
Reports by system, as a table
reports
Airframe structure1,487
Engine10
Cabin, seats and restraints1

Models most often reporting it last ten years

Mcdonnell Douglas MD-11485Boeing 717279Mcdonnell Douglas Aircraft Co MD-88241Lockheed 38267Bombardier CL-600 Challenger and CRJ66Boeing 77745Airbus A30034Boeing 76734Mcdonnell Douglas MD-1028Boeing 74719Mcdonnell Douglas Aircraft Co MD 8318Airbus BD-50014
Models most reported, as a table
reports
Mcdonnell Douglas MD-11485
Boeing 717279
Mcdonnell Douglas Aircraft Co MD-88241
Lockheed 38267
Bombardier CL-600 Challenger and CRJ66
Boeing 77745
Airbus A30034
Boeing 76734
Mcdonnell Douglas MD-1028
Boeing 74719
Mcdonnell Douglas Aircraft Co MD 8318
Airbus BD-50014

How it failed the condition found, last ten years

corroded702cracked661damaged56none14worn14chafed12not reported6broken5gouged5unknown4
Conditions found, as a table
reports
corroded702
cracked661
damaged56
none14
worn14
chafed12
not reported6
broken5
gouged5
unknown4

Engines most often reporting it

General Electric CT7 series 3Allison (Rolls-Royce) 250-C47B 1General Electric CF34-8C5 1General Electric CF6-80C2B1F 1Pratt & Whitney PT6-67A 1Pratt & Whitney PW4158 1Turbomeca (Safran) ARRIEL 2B1 1

Approved replacement parts 57 parts manufacturer approvals

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

Spirit Aerosystems INC 30Nextant Aerospace LLC 12Airborne Maintenance & Engineering Services 6Delta G Design INC 4Delta G Designs 2Raisbeck Engineering INC 1Gemini Engineering 1Aws (USA) INC 1

For these models most: Boeing 767 (22), Boeing 737 (12), Beechcraft 400 Beechjet (12), Boeing 757 (9), Boeing 747 (6), Learjet 60 (1), Boeing 777 (1).

MakerPartReplacesFitsGrantedStatus
Airborne Maintenance & Engineering ServicesLongeron 007-00516-1007-00516-1Boeing 737-300/400/7002022-07-11current
Airborne Maintenance & Engineering ServicesLongeron 007-00516-5007-00516-5Boeing 737-300/400/7002022-07-11current
Airborne Maintenance & Engineering ServicesLongeron 007-00516-13007-00516-13Boeing 737-300/400/7002022-07-11current
Airborne Maintenance & Engineering ServicesLongeron 007-00516-15007-00516-15Boeing 737-4002022-07-11current
Airborne Maintenance & Engineering ServicesLongeron 007-00516-7007-00516-7Boeing 737-3002022-07-11current
Airborne Maintenance & Engineering ServicesLongeron 007-00516-17007-00516-17Boeing 737-3002022-07-11current
Nextant Aerospace LLCLongeron, Inboard - Lower Aft Cowl N543006Modification PartRaytheon Aircraft Company 400A2016-03-10current
Nextant Aerospace LLCLongeron, Upper - Fixed Cowl N544005Modification PartRaytheon Aircraft Company 400A2016-03-10current
Nextant Aerospace LLCLongeron, Latch - Lower Door N545005Modification PartRaytheon Aircraft Company 400A2016-03-10current
Nextant Aerospace LLCLongeron, Inboard - Upper Cowl N542005Modification PartRaytheon Aircraft Company 400A2016-03-10current
Nextant Aerospace LLCLongeron, Outboard - Lower Aft Cowl N543005Modification PartRaytheon Aircraft Company 400A2016-03-10current
Nextant Aerospace LLCLongeron, Hinge - Lower Door N545004Modification PartRaytheon Aircraft Company 400A2016-03-10current
Nextant Aerospace LLCLongeron, Outboard - Lower Aft Cowl N543005Modification PartRaytheon Aircraft Company 400A2014-08-12current
Nextant Aerospace LLCLongeron, Upper - Fixed Cowl N544005Modification PartRaytheon Aircraft Company 400A2014-08-12current
Nextant Aerospace LLCLongeron, Latch - Lower Door N545005Modification PartRaytheon Aircraft Company 400A2014-08-12current
Nextant Aerospace LLCLongeron, Inboard - Lower Aft Cowl N543006Modification PartRaytheon Aircraft Company 400A2014-08-12current
Nextant Aerospace LLCLongeron, Hinge - Lower Door N545004Modification PartRaytheon Aircraft Company 400A2014-08-12current
Nextant Aerospace LLCLongeron, Inboard - Upper Cowl N542005Modification PartRaytheon Aircraft Company 400A2014-08-12current
Raisbeck Engineering INCLongeron - Baggage Door Detail 09LJ-53-320-0515Modification PartLearjet 602014-07-23current
Delta G Design INCLongeron (Opp) DGD-E38001-101-2Modification PartBoeing 737-300, -400, -5002014-06-16current
Delta G Design INCLongeron (Opp) DGD-E38001-101-6Modification PartBoeing 737-300, -400, -5002014-06-16current
Delta G Design INCLongeron DGD-E38001-101-5Modification PartBoeing 737-300, -400, -5002014-06-16current
Delta G Design INCLongeron DGD-E38001-101-1Modification PartBoeing 737-300, -400, -5002014-06-16current
Spirit Aerosystems INCLONGERON 314T1210-428314T1210-428Boeing 767-200 SERIES, 767-300 SERIES2011-05-15current
Spirit Aerosystems INCLONGERON 314T1210-428314T1210-428Boeing 767-200 SERIES, 767-300 SERIES2010-12-07current
Delta G DesignsLongeron DGD-011308-01-5N/ABoeing 757-200 Series2010-07-06current
Delta G DesignsLongeron (opp) DGD-011308-01-6N/ABoeing 757-200 Series2010-07-06current
Spirit Aerosystems INCLONGERON ASSY 314T3230Y76314T3230-76Boeing 747-400 SERIES, 747-400F SERIES,...2009-09-24current
Aws (USA) INCLONGERON 65C32700U2(65C32700U2)Boeing 737-300 SERIES, 737-400 SERIES,...2009-07-26current
Gemini EngineeringLONGERON 65C26309-265C26309-2Boeing 737-300 Series2009-06-03current
Spirit Aerosystems INCLONGERON 314T3250Y47314T3250-47Boeing 767-200 SERIES, 767-300 SERIES2009-03-30current
Spirit Aerosystems INCLONGERON, LOWER R.H. 314N3210Y6314N3210-6Boeing 757-200 SERIES, 757-200PF SERIES,...2009-03-30current
Spirit Aerosystems INCLONGERON, LOWER R.H. 314N3210U6314N3210-6Boeing 757-200 SERIES, 757-200PF SERIES,...2009-03-30current
Spirit Aerosystems INCLONGERON ASSY 314T3230U54314T3230-54Boeing 747-400 SERIES, 747-400F SERIES,...2008-11-11current
Spirit Aerosystems INCLONGERON 315W3172-12315W3172-12Boeing 777-200 SERIES, 777-300 SERIES2008-10-06current
Spirit Aerosystems INCLONGERON ASSY 314T3230Y54314T3230-54Boeing 747-400 SERIES, 747-400F SERIES...2008-03-30current
Spirit Aerosystems INCLONGERON LOWER LH 314N3210Y139314N3210-139Boeing 757-200 SERIES, 757-200PF SERIES,...2008-03-30current
Spirit Aerosystems INCLONGERON - FWD 314T1210Y402314T1210-402Boeing 767-200 SERIES, 767-300 SERIES2007-06-05current
Spirit Aerosystems INCLONGERON 314T1210Y401314T1210-401Boeing 767-200 SERIES, 767-300 SERIES2007-04-22current
Spirit Aerosystems INCLONGERON 314T1210-428314T1210-428Boeing 767-200 SERIES, 767-300 SERIES2007-04-22current
Spirit Aerosystems INCLONGERON - UPPER 314T3230U13314T3230-13Boeing 767-200 SERIES2007-04-19current
Spirit Aerosystems INCLONGERON - FWD 314T1210Y402314T1210-402Boeing 767-200 SERIES, 767-300 SERIES2007-04-08current
Spirit Aerosystems INCLONGERON/STOP ASSY 314T3230-87314T3230-87Boeing 747-400 SERIES, 747-400F SERIES...2007-03-02current
Spirit Aerosystems INCLONGERON ASSY 314T3230-54314T3230-54Boeing 747-400 SERIES, 747-400F SERIES...2007-03-02current
Spirit Aerosystems INCLONGERON 314T3210-195314T3210-195Boeing 767-200 SERIES2007-03-02current
Spirit Aerosystems INCLONGERON LOWER LH 314N3210-139314N3210-139Boeing 757-200 SERIES, 757-200PF SERIES,...2007-03-02current
Spirit Aerosystems INCLONGERON 314T3250-45314T3250-45Boeing 767-200 SERIES, 767-300 SERIES2007-03-02current
Spirit Aerosystems INCLONGERON 314T3250-47314T3250-47Boeing 767-200 SERIES, 767-300 SERIES2007-03-02current
Spirit Aerosystems INCLONGERON, LOWER R.H. 314N3210-6314N3210-6Boeing 757-200 SERIES, 757-200PF SERIES,...2007-03-02current
Spirit Aerosystems INCLONGERON 314T1210-401314T1210-401Boeing 767-200 SERIES, 767-300 SERIES2007-03-02current
Spirit Aerosystems INCLONGERON - FWD 314T1210-402314T1210-402Boeing 767-200 SERIES, 767-300 SERIES2007-03-02current
Spirit Aerosystems INCLONGERON - FWD 314T1210Y402314T1210-402Boeing 767-200 SERIES, 767-300 SERIES2006-09-11current
Spirit Aerosystems INCLONGERON 314T3250-45314T3250-45Boeing 767-200 SERIES, 767-300 SERIES2006-01-31current
Spirit Aerosystems INCLONGERON 314T3250-47314T3250-47Boeing 767-200 SERIES, 767-300 SERIES2006-01-30current
Spirit Aerosystems INCLONGERON/STOP ASSY 314T3230-87314T3230-87Boeing 747-400 SERIES, 747-400F SERIES...2005-12-16current
Spirit Aerosystems INCLONGERON, LOWER R.H. 314N3210-6314N3210-6Boeing 757-200 SERIES, 757-200PF SERIES,...2005-11-30current
Spirit Aerosystems INCLONGERON LOWER LH 314N3210-139314N3210-139Boeing 757-200 SERIES, 757-200PF SERIES,...2005-11-30current

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.