# JASC 5712: Wing, Rib/Bulkhead

- Type: JASC system/component code (FAA)
- ATA chapter: 57 Wings
- Title in the code table: WING, RIB/BULKHEAD
- Service difficulty reports: 6,954
- FAA code table: https://www.faa.gov/sites/faa.gov/files/JASC_Code.pdf#page=53
- Page: https://openairdocs.org/jasc/5712

## What it covers

For reports pertaining to the ribs/bulkhead in the wing structure.

## Service difficulty reports (6,954, newest 50)

- [SDR FXTA20261016001](https://openairdocs.org/sdr/FXTA20261016001), Oct 12, 2026: Textrn 408. RIB. CRACKED. 3 CRACKED RIBS RIGHT FLAP COVE. RIB P/N: 7822265-10 @ WS 100.5", RIB P/N: 7822265-12 @ WS 116.0", RIB P/N: 7822265-12 @  (N409BA)
- [SDR KCSA202610091225](https://openairdocs.org/sdr/KCSA202610091225), Oct 9, 2026: Boeing 7474R7F. RIB. CRACKED. RIGHT WING L/E RIB CRACKED AT ILES 756.95 APPROX. JUST AFT OF L/E BULLNOSE IN UNDERWING CAVITY ON LONGERON ATTACH POINT. (N700CK)
- [SDR IPXA202610051117](https://openairdocs.org/sdr/IPXA202610051117), Oct 2, 2026: Airbus A300F4622R. RIB. CRACKED. CREATED TO CAPTURE ENG STATUS AND COMPLETION FOR TASK CARD T3F18E009MQ3S. ACCOMPLISH REPAIR IN ACCORDANCE WITH EO-98679- (N158UP)
- [SDR REXA2026101601939](https://openairdocs.org/sdr/REXA2026101601939), Sep 23, 2026: Cndair CL6002D24. RIB. CRACKED. CRACKED RIB SS 58.41, RT WING LE, THE RIB WAS REPLACED IAW SRM 51-42-06-001-001-A01, SRM 51-42-10-001-001-A01, AND SRM 5 (N296PQ)
- [SDR GIRA202609240001](https://openairdocs.org/sdr/GIRA202609240001), Sep 23, 2026: Boeing 777232. BULKHEAD WEB. GROUND DAMAGE. RH WING DAMAGED BY COLLISION WITH ANOTHER AIRCRAFT. RH WING CLOSURE RIB AT OSAS 1428 DAMAGED. CORRECTIVE ACTION: CLOSURE (N860DA)
- [SDR CALA2026092819859](https://openairdocs.org/sdr/CALA2026092819859), Sep 17, 2026: Boeing 737724. RIB. DAMAGED. LEFT WING THE T/E R/H DEFECTION CONTROL RIB ASSY THE FASTERNERS HOLES ARE ELONGATED. REPAIRED DEFLECTION CONTROL RIB ASS (N16703)
- [SDR UIEA2026091100865](https://openairdocs.org/sdr/UIEA2026091100865), Sep 11, 2026: Boeing 747409F. RIB. CRACKED. CRACK DAMAGE ON THE RIB OF LT WING FIXED L.E. AT ILES 756.95. REPAIRED THE CRACKED AREA IAW EI T2026A57M-1712 REV 1. 2.  (N438GT)
- [SDR IPXA2026092349686](https://openairdocs.org/sdr/IPXA2026092349686), Sep 9, 2026: Boeing 7478F. RIB. CRACKED. CRACKED RIB, AFT SIDE OF LT WING INBD AILERON INBD WEB UPPER CHORD, WBL 445. ACCOMPLISHED REPAIR I.A.W EO-98790-REQ1 REV (N613UP)
- [SDR R61A2026100300293](https://openairdocs.org/sdr/R61A2026100300293), Sep 5, 2026: Emb ERJ170200LR. RIB. CRACKED. CRACK AS MARKED RH WING RIB 4.REPAIRED CRACK IN RH WING RIB 4 IAW ETD2026-170-015445. (N118HQ)
- [SDR R61A2026100300292](https://openairdocs.org/sdr/R61A2026100300292), Sep 5, 2026: Emb ERJ170200LR. RIB. CRACKED. CRACK LT WING AT FWD WHEEL WELL RIB 3A. REPAIRED CRACK LT WING AT FWD WHEEL WELL RIB 3A IAW ETD2026-170-015448 (N118HQ)
- [SDR REXA2026091101806](https://openairdocs.org/sdr/REXA2026091101806), Sep 3, 2026: Cndair CL6002D24. RIB. CRACKED. CRACK ON MACHINED RIB OF LEADING EDGE SS58.41 AT LH WING. DUE TO EXCESSIVE DAMAGE ON MACHINED RIB OF LEADING EDGE SS58.4 (N930XJ)
- [SDR REXA2026102001954](https://openairdocs.org/sdr/REXA2026102001954), Aug 31, 2026: Cndair CL6002D24. RIB. CRACKED. CRACKED MACHINED RIB OF RT WING L/E. THE RIB WAS REPLACED IAW SRM 51-42-06-001-001-A01, & SRM 51-42-10-001-001-A01. (N479PX)
- [SDR IPXA2026090201694](https://openairdocs.org/sdr/IPXA2026090201694), Aug 30, 2026: Airbus A300F4622R. RIB. CRACKED. UPON REMOVAL OF TOP SKIN ON RH WING I/B FLAP FOUND REAR RIB 25A CRACKED P/N A5796011320100. REMOVED RIB 25A P/N A5796011 (N136UP)
- [SDR DALA2026082804883](https://openairdocs.org/sdr/DALA2026082804883), Aug 27, 2026: Airbus A330323. RIB. CORRODED. RIGHT MLG RIB 6, FWD LUG BORE CORRODED. REPAIRED IAW ERA 635959-14AD, REV ORIGINAL. (1779936) AIRCRAFT WAS GROUNDED. (N803NW)
- [SDR DALA2026082704873](https://openairdocs.org/sdr/DALA2026082704873), Aug 27, 2026: Airbus A330323. RIB. MODIFICATION. BOTH MLG RIB 6 NEED MODIFICATION. COMPLIED WITH PER WORK CARD 5753-01164-07A AND 5753-01164-07B. (1779752) AIRCRAFT WAS  (N803NW)
- [SDR HNAA2026101500993](https://openairdocs.org/sdr/HNAA2026101500993), Aug 24, 2026: Emb EMB145LR. RIB. DAMAGED. WHILE PERFORMING HFEC INSPECTION ON LT WING SPAR I LOWER FLANGES AT RIB 9 FOUND A RELEVANT INDICATION. REPAIRED LH WING  (N670AE)
- [SDR HNAA2026101500990](https://openairdocs.org/sdr/HNAA2026101500990), Aug 24, 2026: Emb EMB145LR. RIB. CRACKED. RIGHT WING RIB 5 IS CRACKED. R & R RIGHT WING RIB 5 IAW AERNNOVA TI-145-26-139 IAW ETD-2026-145-014875 REV.A. AND EO1-57 (N670AE)
- [SDR REXA2026092101849](https://openairdocs.org/sdr/REXA2026092101849), Aug 15, 2026: Cndair CL6002D24. RIB. CRACKED. CRACK ON MACHINED RIB OF LEADING EDGE BTW SS58.41 AT RH WING MACHINED RIB OF LEADING EDGE BTW SS58.41 AT RH WING WAS REP (N480PX)
- [SDR REXA2026092101846](https://openairdocs.org/sdr/REXA2026092101846), Aug 15, 2026: Cndair CL6002D24. RIB. CRACKED. CRACK ON LEADING EDGE RIB SS57.16 AT LH WING MACHINED RIB OF LEADING EDGE ON SS57.16 AT LH WING WAS PER REO 690-57-41-24 (N480PX)
- [SDR VNAA202608200006](https://openairdocs.org/sdr/VNAA202608200006), Aug 14, 2026: Cndair CL6002D24. RIB. CRACKED. CRACK ON RIB LEADING EDGE SS 57.16 AT RH WING. CRACK ON RIB LEADING EDGE SS 57.16 AT RH WING WAS REPAIRED PER REO 690-57 (N608NN)
- [SDR VNAA202608200005](https://openairdocs.org/sdr/VNAA202608200005), Aug 14, 2026: Cndair CL6002D24. RIB. CRACKED. CRACK ON RIB LEADING EDGE SS 57.16 AT LH WING. RIB LEADING EDGE SS 57.16 AT LH WING WAS REPAIRED PER REO 690-57-41-240 R (N608NN)
- [SDR SWAA2026081787218](https://openairdocs.org/sdr/SWAA2026081787218), Aug 12, 2026: Boeing 7377H4. RIB. CRACKED. LEFT AFT TRAILING EDGE FLAP DEFLECTION RIB, UPPER ATTACH ANGLE CRACKED. NR 8 SPOILER ACTUATOR SHUTTERING & NR 6 SPOILER  (N265WN)
- [SDR VNAA202608310025](https://openairdocs.org/sdr/VNAA202608310025), Aug 7, 2026: Cndair CL6002D24. RIB. CRACKED. CRACKED DOUBLER, RIB SS 27.75 AT INBD FIXED LEADING-EDGE RT WING. DOUBLER, RIB SS 27.75 AT INBD FIXED LEADING-EDGE, RT W (N551NN)
- [SDR IPXA2026090851265](https://openairdocs.org/sdr/IPXA2026090851265), Aug 6, 2026: Airbus A300F4622R. RIB. CRACKED. MAJOR REPAIR. RT WING, CENTER FLAP, TOP SKIN RIB FLANGE, 1 EA CRACK INDICATION NOTED AT RIB 11. ACCOMPLISHED PERMANENT R (N147UP)
- [SDR IPXA2026083107009](https://openairdocs.org/sdr/IPXA2026083107009), Aug 4, 2026: Boeing 7478F. RIB. CRACKED. CRACKED RIB, AFT SIDE OF LT WING, INBD AILERON, INBD WEB UPPER CHORD, WBL 445. ACCOMPLISHED A REPAIR IAW EO-98460-REQ1,  (N612UP)
- [SDR IPXA2026082507009](https://openairdocs.org/sdr/IPXA2026082507009), Aug 4, 2026: Boeing 7478F. RIB. CRACKED. CRACKED RIB, AFT SIDE OF LT WING INBD AILERON INBD WEB UPPER CHORD, WBL 445. (N612UP)
- [SDR IXXA20260801001](https://openairdocs.org/sdr/IXXA20260801001), Aug 1, 2026: Boeing 767323. RIB. CRACKED. RIB AT W/S/ 499.60 CRACKED L/W L/E (N379AZ)
- [SDR VNAA202610060027](https://openairdocs.org/sdr/VNAA202610060027), Jul 30, 2026: Cndair CL6002D24. RIB. CRACKED. CRACK ON MACHINED RIB LEADING EDGE SS58.41 AT LEFT WING. MACHINED RIB LEADING EDGE SS58.41 AT LEFT WING WAS REPPLACED PE (N648NN)
- [SDR HNAA2026092200885](https://openairdocs.org/sdr/HNAA2026092200885), Jul 30, 2026: Emb EMB145LR. RIB. CRACKED. RT WING, 1EA RIB 21 HAS A CRACK ON UPPER MID FLANGE. REPAIRED CRACK ON RIB 21 OF THE RT WING UPPER MID FLANGE WITH A CUT (N664MS)
- [SDR HNAA202609220085](https://openairdocs.org/sdr/HNAA202609220085), Jul 30, 2026: Emb EMB145LR. RIB. CRACKED. RT WING, 1EA RIB 21 HAS A CRACK ON UPPER MID FLANGE. REPAIRED CRACK ON RIB 21 OF THE R/H WING UPPER MID FLANGE WITH A CU (N664MS)
- [SDR HNAA2026090100814](https://openairdocs.org/sdr/HNAA2026090100814), Jul 30, 2026: Emb EMB145LR. RIB. CRACKED. RIGHT WING, ONE RIB 21 HAD A CRACK ON UPPER MID FLANGE. REPAIRED THE RIB MID FLANGE WITH A CUTOUT FILLER & DOUBLER IAW S (N664MS)
- [SDR UIEA2026061500498](https://openairdocs.org/sdr/UIEA2026061500498), Jul 29, 2026: Boeing 74745EF. RIB. CRACKED. LHW L/E ILES 756.95 UPPER FIXED PNL RIB FOUND CRACK(<P>RIB CRACK AREA REPAIRED AS PER RI-57-41-18340 REV A. NO FURTHER D (N485MC)
- [SDR VNAA202610060020](https://openairdocs.org/sdr/VNAA202610060020), Jul 28, 2026: Cndair CL6002D24. RIB. CORRODED. CORROSION ON SETTLEMENT AREA OF THE ACCESS PANELS 621AT, 621AB & 621BR. AT RH WING LEADING EDGE. CORROSION ON SETTLEMENT (N648NN)
- [SDR 1Q2R2026072950069](https://openairdocs.org/sdr/1Q2R2026072950069), Jul 28, 2026: Cndair CL6002C10. RIB. CRACKED. DURING NDT INSPECTION, CRACK INDICATION NOTED ON THE L/H SIDE AT WS178.00, FLAP HINGE BOX ATTACHMENT FITTING ON THE I/B  (N523AE)
- [SDR HNAA2026072400631](https://openairdocs.org/sdr/HNAA2026072400631), Jul 14, 2026: Emb EMB145LR. RIB. CRACKED. RT WING, RIB 21 OB OF AILERON PCU HAS A CRACK ON UPPER FLANGE. REPAIRED RT WING RIB 21 OB OF AILERON PCU UPPER FLANGE CR (N931AE)
- [SDR HNAA2026072400630](https://openairdocs.org/sdr/HNAA2026072400630), Jul 14, 2026: Emb EMB145LR. RIB. CRACKED. LEFT WING, RIB 21 OB OF AILERON PCU HAS A CRACK ON UPPER FLANGE. REPAIRED LT WING RIB 21 OB AILERON PCU CRACK USING FILL (N931AE)
- [SDR HNAA2026081400705](https://openairdocs.org/sdr/HNAA2026081400705), Jul 12, 2026: Emb EMB145LR. RIB. CRACKED. F138593 R/H WING RIB 21 IS CRACK. ACCOMPLISHED DOUBLE REPAIR ON R/H WING RIB 21. IAW EMB 145 SRM 57-20-07RE FIGURE 203 A (N942LL)
- [SDR HNAA2026081400699](https://openairdocs.org/sdr/HNAA2026081400699), Jul 10, 2026: Emb EMB145LR. RIB. CRACKED. L/H WING RIB 21 IS CRACK. ACCOMPLISHED DOUBLER REPAIR ON L/H WING RIB 21. IAW EMB 145 SRM 57-20-07RE FIGURE 203 AND EO1- (N942LL)
- [SDR UATA2420714265701](https://openairdocs.org/sdr/UATA2420714265701), Jul 8, 2026: Casa C212200. RIB. BUCKLED. LEFT WING HAS BUCKLED RIB AND WRINKLED SKIN AT WING STATION 6500. CAUSE/TIMEFRAME OF DAMAGE UNKNOWN. WING APPEARS TO HAV (N424CA)
- [SDR SWIA2026070577147](https://openairdocs.org/sdr/SWIA2026070577147), Jul 5, 2026: Cndair CL6002C11. RIB. CRACKED. LEFT WING SLAT 1 FIX LE RIB CRACKED AT WING BS 5841. PERFORMED REPAIR AREA ON SLAT 1 FIX RIB OF LT WING AT WS 5841 IAW S (N794SK)
- [SDR SWAA2026081112930](https://openairdocs.org/sdr/SWAA2026081112930), Jul 4, 2026: Boeing 7377K5. RIB. CRACKED. CRACK INDICATION ON RT WING OTBD AFT FLAP, INBD CLOSURE RIB RADIUS. REPLACED THE RT OTBD AFT FLAP ASSY IAW AMM 27-51-22- (N7880D)
- [SDR IPXA2026082692104](https://openairdocs.org/sdr/IPXA2026082692104), Jul 3, 2026: Airbus A300F4622R. RIB. CRACKED. RIGHT WING FIXED LEADING EDGE INBOARD SIDE, INTERNAL STRUCTURE (JUST NEXT TO KRUEGER COMPARTMENT), WEB WITH CRACK. INSTA (N144UP)
- [SDR REXA2026082601717](https://openairdocs.org/sdr/REXA2026082601717), Jul 1, 2026: Cndair CL6002D24. RIB. CRACKED. CRACK ON RIB OF ACCESS PANEL NBR:521AT STIFFENER (RIB) ON ACCESS PANEL 521AT WAS REPLACED PER CRJ-900 SRM 51-42-06-001-0 (N926XJ)
- [SDR SWAA2026072225777](https://openairdocs.org/sdr/SWAA2026072225777), Jul 1, 2026: Boeing 737752. RIB. CRACKED. ANGLE ON INBD SIDE OF RT WING DEFLECTION CONTROL RIB CRACKED. REMOVED AND REPLACED THE ANGLE ON INBD SIDE OF RT WING, DE (N7847A)
- [SDR IPXA2026070384515](https://openairdocs.org/sdr/IPXA2026070384515), Jun 27, 2026: Boeing 76734AF. RIB. CRACKED. CRACKED RIB, LT WING OTBD L/E UPPER RIB LOWER ANGLE, OSS 549.75. INSTALLED THE NEW RIB ANGLE IAW SRM 51-40-02-0G, REV. 9 (N304UP)
- [SDR REXA2026082401561](https://openairdocs.org/sdr/REXA2026082401561), Jun 26, 2026: Cndair CL6002D24. RIB. CRACKED. CRACK ON MACHINED RIB OF LEADING EDGE SS 57.16 AT LH WING. MACHINED RIB OF LEADING EDGE SS 57.16 AT LH WING WAS REPAIRED (N928XJ)
- [SDR REXA2026082401574](https://openairdocs.org/sdr/REXA2026082401574), Jun 25, 2026: Cndair CL6002D24. RIB. CRACKED. CRACKED MACHINED RIB OF LEADING EDGE SS 57.16 AT RT WING. MACHINED RIB OF LEADING EDGE SS 57.16 AT RT WING WAS REPLACED  (N928XJ)
- [SDR AALA202609141045](https://openairdocs.org/sdr/AALA202609141045), Jun 19, 2026: Airbus A319115. RIB. CRACKED. AIRCRAFT IN BASE MAINTENANCE: LEFT WING TIP SHARKLET INSTALLATION RIB HAS BROKEN LUG ATTACHMENT AT RIB 27 AND AFT OF THE (N3014R)
- [SDR AALA202606249688](https://openairdocs.org/sdr/AALA202606249688), Jun 18, 2026: Boeing 737823. RIB. WORN. AIRCRAFT IN BASE MAINTENANCE: WEAR TO RIGHT HAND WING FIXED TRAILING EDGE DEFLECTION CONTROL RIB AT ORSS 310. ACCOMPLISH (N813NN)
- [SDR REXA2026082601723](https://openairdocs.org/sdr/REXA2026082601723), Jun 16, 2026: Cndair CL6002D24. RIB. CRACKED. CRACK ON LEADING EDGE RIB SS57.16 AT RH WING LEADING EDGE RIB SS57.16 AT RH WING WAS REPAIRED PER REO 690-57-41-240 REV  (N926XJ)

All 6,954: https://openairdocs.org/jasc/5712/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 (4,449 reports)
- [JASC 5711](https://openairdocs.org/jasc/5711): Wing Spar (5,579 reports)
- [JASC 5713](https://openairdocs.org/jasc/5713): Wing, Longeron/Stringer (2,086 reports)
- [JASC 5714](https://openairdocs.org/jasc/5714): Wing, Center Box (1,451 reports)
- [JASC 5720](https://openairdocs.org/jasc/5720): Wing Miscellaneous Structure (13,614 reports)
- [JASC 5730](https://openairdocs.org/jasc/5730): Wing, Plate/Skin (27,210 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 (2,713 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 (31,481 reports)
- [JASC 5754](https://openairdocs.org/jasc/5754): Leading Edge Devices (17,330 reports)
- [JASC 5755](https://openairdocs.org/jasc/5755): Spoilers (4,549 reports)
- [JASC 5797](https://openairdocs.org/jasc/5797): Wing System Wiring (81 reports)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.