# JASC 5713: Wing, Longeron/Stringer

- Type: JASC system/component code (FAA)
- ATA chapter: 57 Wings
- Title in the code table: WING, LONGERON/STRINGER
- Service difficulty reports: 2,091
- FAA code table: https://www.faa.gov/sites/faa.gov/files/JASC_Code.pdf#page=53
- Page: https://openairdocs.org/jasc/5713

## What it covers

For reports pertaining to the longerons or stringers in the wing structure.

## Service difficulty reports (2,091, newest 50)

- [SDR ERKR202610220895](https://openairdocs.org/sdr/ERKR202610220895), Oct 22, 2026: Boeing 777246. STRINGER. CRACKED. THE LEFT OUTER WING UPPER STRINGER U-23 HAS CRACKED AT RIB 12 WING STATION 495.20 INTERFACE (N5NBUU)
- [SDR ERKR2026FA0000894](https://openairdocs.org/sdr/ERKR2026FA0000894), Oct 22, 2026: Boeing 777246. STRINGER. CRACKED. THE LEFT OUTER WING UPPER STRINGER U-30 CRACKED AT RIB 12 WING STATION 495.50 INTERFERENCE
- [SDR 2026FA0000893](https://openairdocs.org/sdr/2026FA0000893), Oct 22, 2026: Boeing 777246. STRINGER. CRACKED. THE UPPER STRINGER U-34 OF THE LEFT WING'S OUTER TANK IS CRACKED AT THE JOINT WITH RIB 5, WING STATION 306.00
- [SDR ERKR2026102200892](https://openairdocs.org/sdr/ERKR2026102200892), Oct 22, 2026: Boeing 777246. STRINGER. CRACKED. THE UPPER STRINGER U-34 OF THE LEFT WING'S OUTER TANK IS CRACKED AT THE JOINT WITH RIB 15, WING STATION 573.00
- [SDR ERKR2026FA0000891](https://openairdocs.org/sdr/ERKR2026FA0000891), Oct 22, 2026: Boeing 777246. STRINGER. CRACKED. THE UPPER STRINGER U-29 AND U-32 IN THE RIGHT WING'S OUTER TANK ARE CRACKED AT THE JUNCTURE WITH RIB 15, WING STATION 57 (N808KW)
- [SDR CALA2026101320348](https://openairdocs.org/sdr/CALA2026101320348), Oct 6, 2026: Boeing 737824. STRINGER. CRACKED. DURING OK TO INSTALL FUEL PANELS PROCEDURE, FOUND CRACK ON STRINGER ABOVE RIB 14 LOCATED ON LH WING BETWEEN WING STA 417 (N73299)
- [SDR CALA2026101520376](https://openairdocs.org/sdr/CALA2026101520376), Oct 5, 2026: Boeing 737824. STRINGER. CRACKED. RIGHT WING STRINGER 9 HAD A CRACK IN RADUIS BTWN RIBS 17 - 18. REPAIRED THE RT WING STRINGER IAW EO 5720-23034, REV A-G  (N24212)
- [SDR CALA2026101320311](https://openairdocs.org/sdr/CALA2026101320311), Oct 5, 2026: Boeing 737824. STRINGER. CORRODED. L/H WING INTERNAL AT RIB 21 LOWER FACE OF UPPER STRINGER HAS POSSIBLE CRACK AT STR 9. REPAIR STR 9 AT RIB 21 EO 5720-230 (N24212)
- [SDR CALA2026101320309](https://openairdocs.org/sdr/CALA2026101320309), Oct 4, 2026: Boeing 737824. STRINGER. CORRODED. R/H WING LOWER SURFACE AT UPPER SKIN RIB 20 STR. 9 HAS POSSIBLE CRACK. REPAIRED CRACK ON RH WING STR 9 RIB 20 REF EO 572 (N24212)
- [SDR CALA2026100520088](https://openairdocs.org/sdr/CALA2026100520088), Oct 2, 2026: Boeing 737824. STRINGER. CORRODED. LEFT WING UPPER SKIN INTERIOR LOWER SURFACE AT RIB 19 STR 9 HAD A POSSIBLE CRACK. REPAIRED STR 9 AT RIB 19 IAW EO 5720-2 (N24212)
- [SDR CALA2026100520059](https://openairdocs.org/sdr/CALA2026100520059), Oct 1, 2026: Boeing 737824. STRINGER. CRACKED. CRACK FOUND AT RIGHT WING FUEL TANK AT U-9 REIFORCEMENT AT WSTA 617. ACCOMPLISHED REPAIR OF U-9 STRINGER AT RT WING WS 6 (N37293)
- [SDR 2026FA0000744](https://openairdocs.org/sdr/2026FA0000744), Sep 19, 2026: Cessna 680A. STRINGER. DEBONDED. RT WING STRINGER NR 2 (CWS 117.60) IS DEBONDED AT END (INSIDE PANEL 621CB) (N904QS)
- [SDR 2026FA0000658](https://openairdocs.org/sdr/2026FA0000658), Aug 20, 2026: Cessna 680A. STRINGER. DEBONDED. DEBONDS ON THE UPPER WINGS BETWEEN THE OTBD END OF STRINGERS & COMMON SKIN DOUBLERS. THE SKIN & COMMON DOUBLERS MAY ALSO (N595QS)
- [SDR 2026FA0000643](https://openairdocs.org/sdr/2026FA0000643), Aug 15, 2026: Cessna 680A. STRINGER. DEBONDED. DISBOND, LH WING, UPPER SKIN BOND ASSY, S-2 @ CWS 117.60 AND S-3 @ CWS 201.25. THE SKIN AND COMMON STRINGERS MAY ALSO EX (N932QS)
- [SDR SWAA2026081749181](https://openairdocs.org/sdr/SWAA2026081749181), Jul 30, 2026: Boeing 7377H4. STRINGER. CRACKED. CRACKED ON STRINGER 8. INTERNAL AREA FUEL TANK, RIB 19 - 20, UPPER SKIN, LOWER SURFACE AFT AREA, LT WING. IAW EA 26-157- (N952WN)
- [SDR SCNA20260902378](https://openairdocs.org/sdr/SCNA20260902378), Jul 3, 2026: Boeing 7378F2. REPAIR. CORRODED. REPLACE REPAIR IAW MESSAGE MM 4-SCA-26-0018 ON STRINGER U-9 BETWEEN BTW RIB 19 AND 20 WSTA 564.5 TO 591.5 RT WING, THE N (N827SY)
- [SDR UIEA2026061600508](https://openairdocs.org/sdr/UIEA2026061600508), Jun 27, 2026: Boeing 7478F. STRINGER. CRACKED. LEFT WING L/E VCF 7 FRONT STRINGER FOUND CRACKED AT LEFT CONNECTOR BRACKET AREA. LT WING L/E VCF 7 FRONT STRINGER CRACKE (N868GT)
- [SDR IPXA2026062485353](https://openairdocs.org/sdr/IPXA2026062485353), Jun 16, 2026: Boeing 76734AF. LONGERON FITTING. CRACKED. LEFT UNDERWING LONGERON FITTING HAS CRACK DURING PERFORMED J/C: EO-48156-JIC001. ACCOMPLISHED JOB I.A.W UPS EO-48156-JIC (N334UP)
- [SDR CALA2026061117007](https://openairdocs.org/sdr/CALA2026061117007), Jun 9, 2026: Boeing 737824. STRINGER. CRACKED. RH WING INTERNAL FUEL TANK UPPER STRINGER U-9 CRACKED AT THE OB END BETWEEN RIB NR 21 AND RIB NR 22. REPAIRED STRINGER U (N14240)
- [SDR 2026FA0000289](https://openairdocs.org/sdr/2026FA0000289), Apr 23, 2026: Cessna 680A. STRINGER. DEBONDED. DISBONDS ON THE UPPER WINGS BETWEEN THE OUTBOARD END OF STRINGERS AND THE COMMON SKIN DOUBLERS. THE SKIN AND COMMON DOUB (N572QS)
- [SDR SWAA2026052091365](https://openairdocs.org/sdr/SWAA2026052091365), Apr 20, 2026: Boeing 7377H4. STRINGER. CRACKED. CRACKED STRINGER 9 INTERNAL AREA FUEL TANK UPPER POSITION, BTW RIB 21 AND RIB 22 AT LT WING. PERFORMED REPAIR ON STRINGE (N250WN)
- [SDR AALA202602164242](https://openairdocs.org/sdr/AALA202602164242), Jan 28, 2026: Boeing 737823. STRINGER. CRACKED. AIRCRAFT IN BASE MAINTENANCE: RIGHT WING INSIDE TANK ACCESS HOLE 632RB TOP MOST AFT STRINGER CRACKED FROM MOST OUTBOARD  (N913AN)
- [SDR AALA202602064242](https://openairdocs.org/sdr/AALA202602064242), Jan 28, 2026: Boeing 737823. STRINGER. CRACKED. AIRCRAFT IN BASE MAINTENANCE: RIGHT HAND WING INSIDE TANK ACCESS HOLE 632RB TOP MOST AFT STRINGER CRACKED FROM MOST OUTB (N913AN)
- [SDR CALA2026012713323](https://openairdocs.org/sdr/CALA2026012713323), Jan 22, 2026: Boeing 737824. STRINGER. CRACKED. RIGHT WING INTERNAL FUEL TANK UPPER STRINGER U-9 CRACKED AT THE RIB 21 AREA. ACCOMPLISHED INTERIM REPAIR IAW ECRA 5720-0 (N54241)
- [SDR CALA2026012713320](https://openairdocs.org/sdr/CALA2026012713320), Jan 21, 2026: Boeing 737824. STRINGER. CRACKED. LEFT WING INTERNAL FUEL TANK UPPER STRINGER U-9 CRACKED BETWEEN RIB 16 AND RIB 17. ACCOMPLISHED PERMANENT REPAIR IAW ECR (N54241)
- [SDR SWAA2026011243547](https://openairdocs.org/sdr/SWAA2026011243547), Dec 6, 2025: Boeing 7377H4. STRINGER. CRACKED. CRACKED STRINGER U-8 INTERNAL AREA FUEL TANK UPPER POSITION LOC BTW RIB 19 AND RIB 20 AT RT WING. ACCOMPLISHED EA 25-157 (N241WN)
- [SDR CALA2025112711508](https://openairdocs.org/sdr/CALA2025112711508), Nov 25, 2025: Boeing 737924. STRINGER. CRACKED. INSIDE FUEL PANEL 532RB STRINGER U9 HAS A CRACK IN END OF STRINGER AND APPEARS TO END IN FASTENER HOLE. REPAIRED L/W U9  (N71411)
- [SDR CALA2025111311192](https://openairdocs.org/sdr/CALA2025111311192), Nov 9, 2025: Boeing 737824. STRINGER. CRACKED. LEFT WING FUEL TANK AFT, INBD OF RIB 22, AT END OF STRINGER 9U IS CRACKED ON EDGE TO FASTENER. MAJOR REPAIR IAW ECRA 572 (N33209)
- [SDR CALA2025111311190](https://openairdocs.org/sdr/CALA2025111311190), Nov 9, 2025: Boeing 737824. STRINGER. CRACKED. RIGHT WING INTERNAL FUEL TANK, UPPER STRINGER U-9 CRACKED ABOVE RIB NR 18. MAJOR REPAIR IAW ECRA 5723-01057. REPAIRED RT (N33209)
- [SDR CALA2025110410855](https://openairdocs.org/sdr/CALA2025110410855), Oct 31, 2025: Boeing 737924ER. STRINGER. CRACKED. SUPPORT TASK: WHILE PERFORMING B737-900ER SRM 57-41-01-2R-7 REPAIR 7 FOR LOOSE FASTENERS AT LH WING FIXED LEADING EDGE,  (N75435)
- [SDR CALA2025102710596](https://openairdocs.org/sdr/CALA2025102710596), Oct 24, 2025: Boeing 737824. STRINGER. CRACKED. INSIDE FUEL PANEL 632RB OPENING STRINGER U9 HAS CRACK IN END OF STRINGER AND APPEARS TO END AT LAST FASTENER REQUESTING  (N73283)
- [SDR IPXA2025081560455](https://openairdocs.org/sdr/IPXA2025081560455), Jul 28, 2025: Doug MD11F. STRINGER. DAMAGED. MAJOR REPAIR, EXISTING REPAIRS IS TIME LIMITED RT WING UPPER STRINGER 6 AT XORS 980.80 REQUIRED PERM. REF EO # 87790-REQ (N274UP)
- [SDR SWAA2025060968117](https://openairdocs.org/sdr/SWAA2025060968117), May 6, 2025: Boeing 737752. STRINGER. CRACKED. CRACK STRINGER 9 INTERNAL AREA FUEL TANK LOC. BTW RIB 21 AND RIB 22 UPPER SKIN LOWER SURFACE AFT AREA AT RT WING. REPAIR (N7835A)
- [SDR CNMA2025050001](https://openairdocs.org/sdr/CNMA2025050001), May 5, 2025: Boeing 76733A. LONGERON. CRACKED. DURING ACCOMPLISHMENT OF INSPECTION 76AD2012-15-12-G, A CRACK WAS FOUND IN THE LH UNDERWING LONGERON. PER SB 767-57A0126 (N351AX)
- [SDR IXXA20250430003](https://openairdocs.org/sdr/IXXA20250430003), Apr 30, 2025: Boeing 767323. STRINGER. GOUGED. R WING INTERNAL STRINGER L10 HAS 1 FASTENER HOLE AT APPROX WS 850 RIB 26 WITH GOUGE DAMAGE AT FASTENER HOLE (N229AZ)
- [SDR CALA2025041703937](https://openairdocs.org/sdr/CALA2025041703937), Apr 15, 2025: Boeing 737924. STRINGER. CRACKED. R/W INSIDE FUEL TANK ACCESS PANEL 632PB STRINGER U8 IS CRACKED AT END OF STRINGER AND APPEARS TO END AT FASTENER HOLE. R (N35407)
- [SDR CALA2025041703936](https://openairdocs.org/sdr/CALA2025041703936), Apr 15, 2025: Boeing 737924. STRINGER. CRACKED. R/W INSIDE TANK ACCESS PANEL 632RB VIEW LOOKING UP AND AFT STRINGER U9 HAS A CRACK IN END OF STRINGER AND APPEARS TO END (N35407)
- [SDR CALA2025041703935](https://openairdocs.org/sdr/CALA2025041703935), Apr 15, 2025: Boeing 737924. STRINGER. CRACKED. L/W INSIDE TANK ACCESS PANEL 532RB VIEW LOOKING UP AND AFT STRINGER U9 HAS A CRACK IN END OF STRINGER AND APPEARS TO END (N35407)
- [SDR DALA2025040302547](https://openairdocs.org/sdr/DALA2025040302547), Apr 1, 2025: Boeing 737832. STRINGER. DAMAGED. (LOG 0890241) LH WING, B737, STRINGER L-8 INSTALL RII, SECTION 02A. ELONGATED HOLES 4 E/A AND HOLES ON RADIUS AREA (FWD  (N3748Y)
- [SDR CALA2025032803279](https://openairdocs.org/sdr/CALA2025032803279), Mar 26, 2025: Boeing 737924. STRINGER. CRACKED. L/W INSIDE TANK ACCESS PANEL 532RB VIEW LOOKING UP AND AFT STRINGER U9 HAS A CRACK IN END OF STRINGER AND APPEARS TO END (N75410)
- [SDR 2025F00060](https://openairdocs.org/sdr/2025F00060), Mar 16, 2025: Cessna 680A. STRINGER. DEBONDED. DISBONDS WERE NOTED AT THE ENDS OF STRINGERS COMMON TO 7422086-3/-4 LH/RH UPPER OUTBOARD WING SKIN BOND ASSEMBLIES AT FI (N526QS)
- [SDR IXXA20250425005](https://openairdocs.org/sdr/IXXA20250425005), Mar 5, 2025: Boeing 767323. STRINGER. GOUGED. RH WING INTERNAL LOWER STRINGER L-10 FWD SKIN ATTACH FLANGE HAS MILTIPLE GOUGES AT THE ATTACH FASTENERS BETWEEN RIB 30 A (N229AZ)
- [SDR SWAA2025031794500](https://openairdocs.org/sdr/SWAA2025031794500), Feb 9, 2025: Boeing 7377H4. STRINGER. CRACKED. CRACK ON STRINGER 8 INTERNAL AREA FUEL TANK LOCATED BTW RIB 19 AND RIB 20 UPPER SKIN LOWER SURFACE AT RT WING 2025-11303 (N216WR)
- [SDR SWAA2025031794502](https://openairdocs.org/sdr/SWAA2025031794502), Feb 9, 2025: Boeing 7377H4. STRINGER. CRACKED. CRACK ON STRINGER 9 INTERNAL AREA FUEL TANK LOCATED BTW RIB 21 AND RIB 22 UPPER SKIN LOWER SURFACE AT RT WING 2025-11304 (N216WR)
- [SDR SWAA2025022088437](https://openairdocs.org/sdr/SWAA2025022088437), Jan 22, 2025: Boeing 73776N. STRINGER. CRACKED. FASTENER TAB FOR LEFT WING INBOARD UPPER FIXED LEADING-EDGE STRINGER P/N 116A4531-5 IS BROKED OFF. REMOVED AND REPLACED  (N7723E)
- [SDR CALA2025011700142](https://openairdocs.org/sdr/CALA2025011700142), Jan 16, 2025: Boeing 777222. LONGERON. CRACKED. AD2019-11-02 - SUPPORT TASK - EA 5310-07557 REV B OP 002 - LH UNDERWING LONGERON 1EA HOLE FOUND CRACK AT FWD CARGO RING  (N779UA)
- [SDR CALA2025011700141](https://openairdocs.org/sdr/CALA2025011700141), Jan 16, 2025: Boeing 777222. LONGERON. CRACKED. AD2019-11-02 - SUPPORT TASK - EA 5310-07557 REV B OP 002 - LH UNDERWING LONGERON 1EA HOLE FOUND CRACK AT WEB TRANSFER RE (N779UA)
- [SDR CALA2025011700140](https://openairdocs.org/sdr/CALA2025011700140), Jan 16, 2025: Boeing 777222. LONGERON. CRACKED. EA 5310-07557 REV B OP 002 (AD 2019-11-02) LH UNDERWING LONGERON CENTER TANK FRONT SPAR CHORD 1EA HOLE FOUND CRACK AT 5, (N779UA)
- [SDR 2025FA0000023](https://openairdocs.org/sdr/2025FA0000023), Jan 15, 2025: Piper PA28181. STRINGER. CRACKED. R/H WING I/B FWD LWR SKIN, FWD STIFFENER CRACKED, REPLACED WITH NEW. (N205Z)
- [SDR 2025FA0000022](https://openairdocs.org/sdr/2025FA0000022), Jan 15, 2025: Piper PA28181. STRINGER. CRACKED. R/H WING I/B FWD LWER SKIN, AFT STIFFENER CRACKED, REPLACED WITH NEW (N205Z)

All 2,091: https://openairdocs.org/jasc/5713/reports.md

## Other codes in chapter 57

- [JASC 5700](https://openairdocs.org/jasc/5700): Wing Structure (2,401 reports)
- [JASC 5710](https://openairdocs.org/jasc/5710): Wing Main, Frame Structure (4,450 reports)
- [JASC 5711](https://openairdocs.org/jasc/5711): Wing Spar (5,579 reports)
- [JASC 5712](https://openairdocs.org/jasc/5712): Wing, Rib/Bulkhead (6,956 reports)
- [JASC 5714](https://openairdocs.org/jasc/5714): Wing, Center Box (1,451 reports)
- [JASC 5720](https://openairdocs.org/jasc/5720): Wing Miscellaneous Structure (13,621 reports)
- [JASC 5730](https://openairdocs.org/jasc/5730): Wing, Plate/Skin (27,219 reports)
- [JASC 5740](https://openairdocs.org/jasc/5740): Wing, Attach Fittings (3,003 reports)
- [JASC 5741](https://openairdocs.org/jasc/5741): Wing, Fuselage Attach Fittings (544 reports)
- [JASC 5742](https://openairdocs.org/jasc/5742): Wing, Nacelle/Pylon Attach Fittings (258 reports)
- [JASC 5743](https://openairdocs.org/jasc/5743): Wing, Landing Gear Attach Fittings (3,097 reports)
- [JASC 5744](https://openairdocs.org/jasc/5744): Wing, Control Surface Attach Fittings (2,715 reports)
- [JASC 5750](https://openairdocs.org/jasc/5750): Wing, Control Surfaces (1,157 reports)
- [JASC 5751](https://openairdocs.org/jasc/5751): Ailerons (5,077 reports)
- [JASC 5752](https://openairdocs.org/jasc/5752): Aileron Tabs (654 reports)
- [JASC 5753](https://openairdocs.org/jasc/5753): Trailing Edge Flaps (31,483 reports)
- [JASC 5754](https://openairdocs.org/jasc/5754): Leading Edge Devices (17,332 reports)
- [JASC 5755](https://openairdocs.org/jasc/5755): Spoilers (4,549 reports)
- [JASC 5797](https://openairdocs.org/jasc/5797): Wing System Wiring (81 reports)

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