# JASC 5314: Fuselage Main, Keel

- Type: JASC system/component code (FAA)
- ATA chapter: 53 Fuselage
- Title in the code table: FUSELAGE MAIN, KEEL
- Service difficulty reports: 2,917
- FAA code table: https://www.faa.gov/sites/faa.gov/files/JASC_Code.pdf#page=47
- Page: https://openairdocs.org/jasc/5314

## What it covers

For reports of the main fuselage keel beams.

## Service difficulty reports (2,917, newest 50)

- [SDR IXXA2026100302](https://openairdocs.org/sdr/IXXA2026100302), Oct 3, 2026: Boeing 767338. KEELBEAM. CRACKED. LH KEEL BEAM WEB CRACKED (N313AZ)
- [SDR IXXA2026100301](https://openairdocs.org/sdr/IXXA2026100301), Oct 3, 2026: Boeing 767338. KEELBEAM. CRACKED. KEEL BEAM WEB CRACKED (N313AZ)
- [SDR AALA202610016755](https://openairdocs.org/sdr/AALA202610016755), Sep 29, 2026: Boeing 7879. KEELBEAM. CORRODED. AIRCRAFT IN BASE MAINTENANCE: CORROSION AROUND 2 EA BONDING WIRES 1.0" X 1.0" AND 2 EA BEARING LUGS, NO LIMITS ALLOWED.  (N832AA)
- [SDR 2A6R2026092275407](https://openairdocs.org/sdr/2A6R2026092275407), Sep 22, 2026: Urocop EC135T2. KEELBEAM. CORRODED. DAMAGE TO THE LH KEEL BEAM CAP IN THE FORM OF SEVERAL AREAS OF CORROSION WAS DISCOVERED. THE DAMAGE IS LOCATED ON THE UP (N110VU)
- [SDR IPXA2026092422876](https://openairdocs.org/sdr/IPXA2026092422876), Sep 13, 2026: Boeing 76734AF. KEELBEAM. CORRODED. FORWARD RIGHT SIDE OF EXPOSED KEEL BEAM AT STA 785 RBL 9 HAS CORROSION AROUND NUT PLATE. REPAIR DAMAGE AREA I.A.W EO-986 (N316UP)
- [SDR IPXA2026092322876](https://openairdocs.org/sdr/IPXA2026092322876), Sep 13, 2026: Boeing 76734AF. KEELBEAM. CORRODED. FORWARD RIGHT SIDE OF EXPOSED KEEL BEAM AT STA 785 RBL 9 HAS CORROSION AROUND NUT PLATE. (N316UP)
- [SDR IPXA2026101915093](https://openairdocs.org/sdr/IPXA2026101915093), Sep 12, 2026: Airbus A300F4622R. FITTING. CRACKED. LEFT KEEL BEAM AT THE LEVEL OF CONNECTING FITTING BETWEEN FR13A AND 14 IN NOSE LANDING GEAR FIGURE 3, VIEW B AND C. FOUN (N158UP)
- [SDR IPXA2026101215031](https://openairdocs.org/sdr/IPXA2026101215031), Sep 12, 2026: Airbus A300F4622R. KEELBEAM. CRACKED. RIGHT KEEL BEAM AT THE LEVEL OF CONNECTING FITTING BETWEEN FR13A AND 14 IN NOSE LANDING GEAR FIGURE 3, VIEW B AND C. FOU (N158UP)
- [SDR IPXA2026092815031](https://openairdocs.org/sdr/IPXA2026092815031), Sep 12, 2026: Airbus A300F4622R. KEELBEAM. CRACKED. MAJOR REPAIR, RIGHT KEEL BEAM AT THE LEVEL OF CONNECTING FITTING BETWEEN FR13A AND 14 IN NOSE LANDING GEAR FIGURE 3, VIE (N158UP)
- [SDR IPXA2026092815093](https://openairdocs.org/sdr/IPXA2026092815093), Sep 12, 2026: Airbus A300F4622R. KEELBEAM. CRACKED. MAJOR REPAIR, LEFT KEEL BEAM AT THE LEVEL OF CONNECTING FITTING BETWEEN FR13A AND 14 IN NOSE LANDING GEAR FIGURE 3, VIEW (N158UP)
- [SDR DALA2026082604846](https://openairdocs.org/sdr/DALA2026082604846), Aug 25, 2026: Airbus A330323. FITTING. CRACKED. CRACK LEFT KEEL BEAM LOWER ANGLE FITTING AT HOLE #555. REPAIRED PER ERA 636041-14. (1777236) AIRCRAFT WAS GROUNDED. (N803NW)
- [SDR DALA2026081804713](https://openairdocs.org/sdr/DALA2026081804713), Aug 17, 2026: Airbus A319114. KEELBEAM. CRACKED. CENTER FUSELAGE LEFT KEEL BEAM BOTTOM PANEL, FR46 STR 37L, H4 AND H6 HOLES WITH CRACK INDICATIONS. REPAIRED IAW ER/A 636 (N343NB)
- [SDR DALA2026081404658](https://openairdocs.org/sdr/DALA2026081404658), Aug 14, 2026: Airbus A319114. KEELBEAM. CRACKED. LEFT FR 46 KEEL BEEM BOTTOM PNL. HAS A CRACK INDICATION ON HOLE 5. REPAIRED PER ER/A 636058-14. (1755255) AIRCRAFT WAS G (N348NB)
- [SDR DALA2026081404657](https://openairdocs.org/sdr/DALA2026081404657), Aug 14, 2026: Airbus A319114. KEELBEAM. CRACKED. LEFT FR. 46 KEEL BEEM BOTTOM PNL. HAS A CRACK INDICATION ON HOLE #4. CORRECTIVE ACTION: REPAIRED PER ER/A 636058-14R. (1 (N348NB)
- [SDR DALA2026081404659](https://openairdocs.org/sdr/DALA2026081404659), Aug 11, 2026: Airbus A319114. KEELBEAM. CRACKED. CRACKS FOUND IN HOLES 4 AND 5 IN LOWER KEEL BEAM PANEL AT FR46 AND STRGR 37 LHS. REPAIRED PER ER/A 636058-14. (1751159)  (N348NB)
- [SDR CALA2026072618010](https://openairdocs.org/sdr/CALA2026072618010), Jul 24, 2026: Boeing 737824. WEB. GOUGED. LOWER FUSELAGE KEEL BEAM TRUSS WEB IS NICKED AT LIGHTNING HOLE CUTOUT, APPROX BS 605, LBL 4. ACCOMPLISHED BLENDOUT REPAI (N87507)
- [SDR DALA2026071304100](https://openairdocs.org/sdr/DALA2026071304100), Jul 11, 2026: Airbus A330323. FITTING. CRACKED. CRACKS WERE FOUND IN THE RH KEEL BEAM FITTING. REPAIRED PER ERA 635419-14AD. (1694589) AIRCRAFT WAS GROUNDED. (N801NW)
- [SDR DALA2026071304101](https://openairdocs.org/sdr/DALA2026071304101), Jul 10, 2026: Airbus A330323. FITTING. CRACKED. CRACK WAS FOUND AT HOLE 555 COMMON TO THE L/H KEEL BEAM FITTING LOWER ANGLE. REPAIRED PER ERA 634953-14. (1692582) AIRCR (N801NW)
- [SDR IPXA2026092183506](https://openairdocs.org/sdr/IPXA2026092183506), Jul 9, 2026: Airbus A300F4622R. KEELBEAM. CRACKED. CRACK FOUND ON LH KEEL BEAM ON AFT SIDE OF BREAK LINE BETWEEN FR 13A AND FR 14. LENGTH: 1 1/2". ACCOMPLISH THE REPAIR PE (N136UP)
- [SDR IPXA2026071183506](https://openairdocs.org/sdr/IPXA2026071183506), Jul 9, 2026: Airbus A300F4622R. KEELBEAM. CRACKED. CRACK FOUND ON LT KEEL BEAM ON AFT SIDE OF BREAK LINE BETWEEN FR 13A AND FR 14, LENGTH: 1 1/2 (N136UP)
- [SDR AALA202607221537](https://openairdocs.org/sdr/AALA202607221537), Jul 3, 2026: Airbus A319115. FITTING. CORRODED. AIRCRAFT IN BASE MAINTENANCE: CORROSION ON AFT RIGHT PASSENGER / CREW DOOR CUTOUT LOWER SILL CENTER SHAPE FITTING AT FR  (N9016)
- [SDR CALA2026063017442](https://openairdocs.org/sdr/CALA2026063017442), Jun 27, 2026: Boeing 737824. ANGLE. CRACKED. KEELBEAM ANGLE CRACKED JUST BEHIND RT WHEEL WELL CUTOUT INTERNAL SIDE. REMOVED AND REPLACED KEELBEAM ANGLE JUST BEHIND R (N17245)
- [SDR AALA202606240423](https://openairdocs.org/sdr/AALA202606240423), Jun 22, 2026: Boeing 737823. TRACK. WORN. AIRCRAFT IN BASE MAINTENANCE: LEFT HAND HORIZONTAL STAB REAR SPAR UPPER SLIDER FORWARD GUIDE TRACK WORN. REPLACED TRACK  (N912AN)
- [SDR IPXA2026091418648](https://openairdocs.org/sdr/IPXA2026091418648), Jun 17, 2026: Airbus A300F4622R. FITTING. CRACKED. MAJOR REPAIR, RH KEEL BEAM AT THE LEVEL OF CONNECTING FITTING BTW FR13A AND 14. (3EA) CRACK INDICATION NOTED ON THE SURF (N143UP)
- [SDR CALA2026062217206](https://openairdocs.org/sdr/CALA2026062217206), Jun 10, 2026: Boeing 737824. KEELBEAM. CRACKED. AFT CARGO COMPARTMENT BS 727 +10 BILGE STRINGER 27R ATTACH ANGLE CRACKED. REMOVED DAMAGED SECTION OF INTERNAL KEEL CHORD (N14240)
- [SDR 2A6R2026060375601](https://openairdocs.org/sdr/2A6R2026060375601), Jun 3, 2026: Urocop EC135T2. KEELBEAM. CORRODED. DAMAGE WAS NOTED TO THE RH KEEL BEAM CAP (P/N: L533M1010203) HORIZONTAL FLANGE IN THE FORM OF SEVERAL AREAS OF CORROSION (N831ME)
- [SDR U2RA2026071400034](https://openairdocs.org/sdr/U2RA2026071400034), Jun 2, 2026: Boeing 747412. KEELBEAM. CORRODED. LEFT WING MLG WW KEELBEAM AREA CENTER WEB CHORD CORROSION. BS 1276-1287. REPAIR ACCOMPLISHED IAW SRM. (N569CA)
- [SDR IPXA2026061174573](https://openairdocs.org/sdr/IPXA2026061174573), Jun 2, 2026: Airbus A300F4622R. KEELBEAM. CRACKED. MAJOR REPAIR, LT KEEL BEAM AT THE LEVEL OF CONNECTING FITTING BTW FR13A AND 14. (2EA) CRACK INDICATION NOTED ON THE SURF (N161UP)
- [SDR IPXA2026061295129](https://openairdocs.org/sdr/IPXA2026061295129), May 8, 2026: Airbus A300F4622R. KEELBEAM. CRACKED. RT & LT KEEL BEAM AT THE LEVEL OF CONNECTING FITTING BTWN FR13A AND 14 REQUIRES MORE CLEANING FOR RE-INSPECTION OF AREA  (N163UP)
- [SDR IPXA2026060994436](https://openairdocs.org/sdr/IPXA2026060994436), May 8, 2026: Airbus A300F4622R. KEELBEAM. CRACKED. CRACK FOUND IN LOWER FWD HOLE OF LH SIDE OF KEEL BEAM (HOLE MARKED IN RED). ACCOMPLISH THE REPAIR PER EO-97661-REQ1 - EA (N156UP)
- [SDR IPXA2026060994859](https://openairdocs.org/sdr/IPXA2026060994859), May 8, 2026: Airbus A300F4622R. KEELBEAM. CRACKED. CRACK FOUND ON KEEL BEAM LH SIDE BREAK LINE AFT SIDE GOING DOWN TO UPPER AFT FASTENER. ACCOMPLISH THE REPAIR PER EO-9766 (N156UP)
- [SDR IPXA2026080258533](https://openairdocs.org/sdr/IPXA2026080258533), May 7, 2026: Airbus A300F4622R. KEELBEAM. CRACKED. MAJOR REPAIR, DURING HFEC INSPECTION, (2 EA) CRACK INDICATION NOTED AT THE LEVEL OF NLG CONNECTING FITTING ON THE LOWER  (N141UP)
- [SDR IPXA2026061658446](https://openairdocs.org/sdr/IPXA2026061658446), May 7, 2026: Airbus A300F4622R. KEELBEAM. CRACKED. MAJOR REPAIR, DURING ROTOTEST, (1 EA) CRACK INDICATION NOTED AT RH FWD LOWER HOLE OF THE KEEL BEAM BTW FR13A AND FR14 AT (N141UP)
- [SDR IPXA2026061253833](https://openairdocs.org/sdr/IPXA2026061253833), May 6, 2026: Airbus A300F4622R. KEELBEAM. CRACKED. THE R/H SIDE, BOTTOM AFT FASTENER HOLE BETWEEN FR13A & 14, IS IN AN OUT OF ROUND CONDITION AND IS GOUGED AROUND THE FAST (N163UP)
- [SDR IPXA2026061253788](https://openairdocs.org/sdr/IPXA2026061253788), May 6, 2026: Airbus A300F4622R. KEELBEAM. CRACKED. MAJOR REPAIR, THE RT SIDE, BOTTOM FWD FASTENER HOLE BETWEEN FR13A & 14, IS IN AN OUT OF ROUND CONDITION AND IS GOUGED AR (N163UP)
- [SDR IPXA2026061153760](https://openairdocs.org/sdr/IPXA2026061153760), May 6, 2026: Airbus A300F4622R. KEELBEAM. CRACKED. MAJOR REPAIR, THE LT SIDE, FWD BOTTOM KEELBEAM FASTENER HOLE BETWEEN FR13A & 14, HAS A CRACK IND. (1EA) BETWEEN THE 6 &  (N163UP)
- [SDR UIEA2026040100118](https://openairdocs.org/sdr/UIEA2026040100118), Mar 29, 2026: Boeing 74746NF. KEELBEAM. CORRODED. LOWER FUSELAGE STA 1460 KEELBEAM STRUCTURE CORROSION (BETWEEN BOTH BODY L/G DOOR) REMOVED BOTH PANEL AT LWR FUSELAGE BS  (N452PA)
- [SDR IXXA20260329002](https://openairdocs.org/sdr/IXXA20260329002), Mar 29, 2026: Boeing 7572G5. KEELBEAM. CORRODED. CORROSION AT THE HYD TUBING PASS THRU AT THE KEEL WALL IN THE LWW BS 1171-1180. (N752CX)
- [SDR ABXA202603131095](https://openairdocs.org/sdr/ABXA202603131095), Mar 11, 2026: Boeing 767223. KEELBEAM. CORRODED. DURING C1 CHECK, MAINTENANCE FOUND KEEL BEAM CHORD UPPER SURFACE RH SIDE STA 999 HAS CORROSION. EVALUATED KEEL BEAM CHOR (N312AA)
- [SDR AALA202603117620](https://openairdocs.org/sdr/AALA202603117620), Mar 4, 2026: Boeing 7878. FITTING. CORRODED. AIRCRAFT IN BASE MAINTENANCE: CORROSION ON KEEL BEAM LATTICE FITTING AT STA 882 BETWEEN LBL 11.5 AND RBL 11.5. REPLACED  (N819AN)
- [SDR SWAA2026030970479](https://openairdocs.org/sdr/SWAA2026030970479), Feb 13, 2026: Boeing 7377H4. ANGLE. CORRODED. CORROSION ON PRESSURE DECK WEB STIFFENER ANGLE, BS 685+8. LBL 71, WL 200. REMOVED AND REPLACED THE STIFFENER ANGLE IAW S (N472WN)
- [SDR SWAA2026021670380](https://openairdocs.org/sdr/SWAA2026021670380), Feb 13, 2026: Boeing 7377H4. SLIDER. CRACKED. LEFT HORIZONTAL STAB, UPPER SLIDER IS CRACKED. REPLACED THE SLIDER ASSY IAW MM 53-31-31. (N926WN)
- [SDR IPXA2026022546988](https://openairdocs.org/sdr/IPXA2026022546988), Feb 11, 2026: Boeing 767316. SPLICE. CORRODED. CORROSION-SPLICE TEE, SEC45 LOWER FUSELAGE KEEL AREA BS 910, RBL 9.5 INNER SURFACE (AGING INSPECTION) (NO.4701). INSTALL (N395UP)
- [SDR SWAA2026031169049](https://openairdocs.org/sdr/SWAA2026031169049), Feb 8, 2026: Boeing 7378H4. KEELBEAM. CRACKED. CRACKED KEELBEAM BETWEEN BS 727 - 727A, STR 27R, AFT CARGO BAY. PERFORMED REPAIR ON KEELBEAM BTWN BS 727 - 727A, STR 27R (N8629A)
- [SDR IXXA2026020604](https://openairdocs.org/sdr/IXXA2026020604), Feb 6, 2026: Boeing 757200. WEB. CORRODED. CORROSION ON THE KEEL WEB, AROUND THE HYD. TUBE FEEDTHROUGH, AT STA.1111, 47 INCHES UP FROM THE KEEL BEAM, IN THE LWW (N752CX)
- [SDR YENA2026020400142](https://openairdocs.org/sdr/YENA2026020400142), Feb 2, 2026: Airbus A320232. PANEL. CRACKED. DURING HEAVY MAINTENANCE: CRACK INDICATION FOUND AT KEEL BEAM BOTTOM PANEL FASTENER HOLES 5, CRACK DEPTH 0.105 INCHES FW (N587JB)
- [SDR DALA2025120808949](https://openairdocs.org/sdr/DALA2025120808949), Dec 8, 2025: Airbus A330323. FITTING. CRACKED. CRACK APPROX. 12MM IN LENGTH AT THE AFT DIRECTION OF THE FASTENER HOLE 555 TO THE AFT END EDGE OF THE KEEL BEAM FITTING. (N815NW)
- [SDR DALA2025120808954](https://openairdocs.org/sdr/DALA2025120808954), Dec 7, 2025: Airbus A330323. FITTING. CRACKED. A CRACK WAS FOUND ON THE RH KEEL BEAM FITTING LOWER ANGLE. REWORKED PER SECT I OF ERA 630620-14. OK FOR SERVICE. (134022 (N815NW)
- [SDR AALA202512057411](https://openairdocs.org/sdr/AALA202512057411), Nov 16, 2025: Boeing 7879. WEB. CORRODED. AIRCRAFT IN BASE MAINTENANCE: CORROSION ON KEEL BEAM LATERAL WEB ON BOTTOM SURFACE AROUND FASTENERS AND CENTER DRAIN HOL (N826AN)
- [SDR SWAA2025121533028](https://openairdocs.org/sdr/SWAA2025121533028), Nov 8, 2025: Boeing 7377H4. KEELBEAM. CRACKED. CRACKED KEELBEAM, BS 727 - 727A, S27R, REPAIRED THE KEELBEAM IAW EA 25-153-03151-WIP1, EA 25-153-03151, & SRM 53-60-12-2 (N917WN)

All 2,917: https://openairdocs.org/jasc/5314/reports.md

## Other codes in chapter 53

- [JASC 5300](https://openairdocs.org/jasc/5300): Fuselage Structure (General) (8,204 reports)
- [JASC 5301](https://openairdocs.org/jasc/5301): Aerial Tow Equipment (18 reports)
- [JASC 5302](https://openairdocs.org/jasc/5302): Rotorcraft Tail Boom (965 reports)
- [JASC 5310](https://openairdocs.org/jasc/5310): Fuselage Main, Structure (38,419 reports)
- [JASC 5311](https://openairdocs.org/jasc/5311): Fuselage Main, Frame (61,513 reports)
- [JASC 5312](https://openairdocs.org/jasc/5312): Fuselage Main, Bulkhead (20,041 reports)
- [JASC 5313](https://openairdocs.org/jasc/5313): Fuselage Main, Longeron/Stringer (36,268 reports)
- [JASC 5315](https://openairdocs.org/jasc/5315): Fuselage Main, Floor Beam (44,160 reports)
- [JASC 5320](https://openairdocs.org/jasc/5320): Fuselage Miscellaneous Structure (215,762 reports)
- [JASC 5321](https://openairdocs.org/jasc/5321): Fuselage Floor Panel (49,299 reports)
- [JASC 5322](https://openairdocs.org/jasc/5322): Fuselage Internal Mounting Structure (12,746 reports)
- [JASC 5323](https://openairdocs.org/jasc/5323): Fuselage Internal Stairs (98 reports)
- [JASC 5324](https://openairdocs.org/jasc/5324): Fuselage Fixed Partitions (40 reports)
- [JASC 5330](https://openairdocs.org/jasc/5330): Fuselage Main, Plate/Skin (79,230 reports)
- [JASC 5340](https://openairdocs.org/jasc/5340): Fuselage Main, Attach Fittings (22,383 reports)
- [JASC 5341](https://openairdocs.org/jasc/5341): Fuselage, Wing Attach Fittings (489 reports)
- [JASC 5342](https://openairdocs.org/jasc/5342): Fuselage, Stabilizer Attach Fittings (573 reports)
- [JASC 5343](https://openairdocs.org/jasc/5343): Fuselage, Landing Gear Attach Fittings (1,946 reports)
- [JASC 5344](https://openairdocs.org/jasc/5344): Fuselage, Door Hinge (2,419 reports)
- [JASC 5345](https://openairdocs.org/jasc/5345): Fuselage, Equipment Attach Fittings (815 reports)
- [JASC 5346](https://openairdocs.org/jasc/5346): Fuselage, Powerplant Attach Fittings (921 reports)
- [JASC 5347](https://openairdocs.org/jasc/5347): Fuselage, Seat/Cargo Attach Fittings (66,290 reports)
- [JASC 5350](https://openairdocs.org/jasc/5350): Aerodynamic Fairings (6,107 reports)
- [JASC 5397](https://openairdocs.org/jasc/5397): Fuselage Main, Bulkhead Fuselage wiring (67 reports)

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