# JASC 5414: Nacelle/Pylon, Plate/Skin

- Type: JASC system/component code (FAA)
- ATA chapter: 54 Nacelles/Pylons
- Title in the code table: NACELLE/PYLON, PLATE SKIN
- Service difficulty reports: 4,353
- FAA code table: https://www.faa.gov/sites/faa.gov/files/JASC_Code.pdf#page=49
- Page: https://openairdocs.org/jasc/5414

## What it covers

For reports pertaining to the plates or skins on the nacelles or pylons.

## Service difficulty reports (4,353, newest 50)

- [SDR FDEA202610191606](https://openairdocs.org/sdr/FDEA202610191606), Oct 19, 2026: Boeing 757204. SKIN. CORRODED. NR 1ENGINE PYLON OUTB SIDE INTERNAL STRUCTURE SIDE SKIN CORRODED (PP STA 144.55 APROX.) (N923FD)
- [SDR JR2R20261015346](https://openairdocs.org/sdr/JR2R20261015346), Oct 15, 2026: Emb ERJ170200LR. SKIN. CHAFED. 419KL HAS CHAFING ON INNER SURFACE. (N88359)
- [SDR IPXA2026100503114](https://openairdocs.org/sdr/IPXA2026100503114), Sep 30, 2026: Boeing 76734AF. SKIN. DENTED. FAULT - DENT - SKIN , NO.1 ENG NOSE COWL INLET AT 9 O'CLOCK POSITION. CUT OUT THE DAMAGE AND CLEAN, MEASURE THE CUT OUT  (N354UP)
- [SDR IPXA2026100503125](https://openairdocs.org/sdr/IPXA2026100503125), Sep 30, 2026: Boeing 76734AF. SKIN. DENTED. FAULT - DENT - SKIN , NO.1 ENG NOSE COWL INLET AT 3 O'CLOCK POSITION. CUT OUT THE DAMAGE AND CLEAN, MEASURE THE CUT OUT  (N354UP)
- [SDR IPXA2026100603239](https://openairdocs.org/sdr/IPXA2026100603239), Sep 30, 2026: Boeing 76734AF. SKIN. DENTED. FAULT - DENT - SKIN , NO.2 ENG NOSE COWL INNER BARREL AT 8 O'CLOCK. CUT OUT THE DAMAGE AND CLEAN, MEASURE THE CUT OUT (  (N354UP)
- [SDR IPXA2026100603252](https://openairdocs.org/sdr/IPXA2026100603252), Sep 30, 2026: Boeing 76734AF. SKIN. DENTED. DENTED SKIN , NR 2 ENG NOSE COWL INNER BARREL AT 5 O'CLOCK. CUT OUT THE DAMAGE AND CLEAN, MEASURE THE CUT OUT ( DIA : 0. (N354UP)
- [SDR CALA2026092919955](https://openairdocs.org/sdr/CALA2026092919955), Sep 27, 2026: Boeing 767424ER. PANEL. MISSING. NR 2 ENGINE HAS PYLON ACCESS PANEL 446AR MISSING. INSPECTED THE AREA FOR DAMAGE IAW AMM 05-51-59, NO DAMAGE FOUND. CDL 5 (N68061)
- [SDR IPXA2026101934070](https://openairdocs.org/sdr/IPXA2026101934070), Sep 19, 2026: Airbus A300F4622R. SKIN. CRACKED. PANEL 485AL FWD OUTER ARA, RH SKIN IS CRACKED. (N146UP)
- [SDR SWAA2026092353287](https://openairdocs.org/sdr/SWAA2026092353287), Sep 19, 2026: Boeing 7378. SKIN. CRACKED. NR 2 ENGINE PYLON HEAT SHIELD PLUME SUPPRESSOR SKIN CRACKED. CRACK LOCATION FROM AFT SKIN EDGE 28 INCHES; CRACK STOP FRO (N8749Q)
- [SDR IPXA2026100102793](https://openairdocs.org/sdr/IPXA2026100102793), Sep 17, 2026: Airbus A300F4622R. PANEL. CRACKED. PANEL 423BL EXTERNAL SURFACE WITH A CRACK. VERIFIED RECEIVED THE REPAIRED PANEL 423BL BY WELDING ON TRAVELER # T26/18792 (N158UP)
- [SDR IPXA2026100102892](https://openairdocs.org/sdr/IPXA2026100102892), Sep 17, 2026: Airbus A300F4622R. ACCESS PANEL. CRACKED. PANEL 413BL, EXTERNAL SURFACE WITH A CRACK DOT 53-024. RECEIVED THE REPAIRED PANEL 413BL BY WELDING ON TRAVELER # T26/18 (N158UP)
- [SDR JR2R20260914344](https://openairdocs.org/sdr/JR2R20260914344), Sep 14, 2026: Emb ERJ170200LR. PANEL. CHAFED. PANEL 429ML SPLICE CHAFED. REPAIR (N88327)
- [SDR JR2R20260914345](https://openairdocs.org/sdr/JR2R20260914345), Sep 14, 2026: Emb ERJ170200LR. PANEL. CHAFED. PANEL 429ML CHAFED AT SCREW HOLES, INTERNAL. REPAIR (N88327)
- [SDR JR2R20260914338](https://openairdocs.org/sdr/JR2R20260914338), Sep 14, 2026: Emb ERJ170200LR. PANEL. CHAFED. PANEL 419NR CHAFED AT SCREW HOLES, INTERNAL. REPAIR (N88327)
- [SDR DALA2026100705556](https://openairdocs.org/sdr/DALA2026100705556), Sep 10, 2026: Boeing 737932ER. SKIN. DELAMINATED. NR 2 ENGINE AFT COWL, INSIDE DELAMINATION AT 5 O'CLOCK POSITION. CLEANED AREA AND REPAIRED IAW SRM 54-30-01-2R, PROCEDUR (N869DN)
- [SDR CALA2026091019359](https://openairdocs.org/sdr/CALA2026091019359), Sep 9, 2026: Boeing 75733N. ACCESS DOOR. MISSING. INSTALLED NEW STRUT ACCESS DOOR ASSEMBLY REF AMM 54-53-01 (N57862)
- [SDR IPXA2026092825914](https://openairdocs.org/sdr/IPXA2026092825914), Sep 7, 2026: Boeing 75724APF. SKIN. CORRODED. ***MAJOR REPAIR*** FAULT-400-STR- #2 ENGINE NACELLE PYLON STRUT, OUTBD INNER SKIN, FWD OF THE VENT PANEL OPENING HAS COR (N444UP)
- [SDR IPXA2026091925377](https://openairdocs.org/sdr/IPXA2026091925377), Sep 7, 2026: Boeing 75724APF. SKIN. CRACKED. ENG 2 PYLON, CRACK AT LOWER T/E WEDGE. INSTALLED PANEL ASSY AT ENG 2 PYLON AT LOWER T/E WEDGE IAW SRM 51-40-02-0G-0. (N444UP)
- [SDR SWAA2026101409901](https://openairdocs.org/sdr/SWAA2026101409901), Sep 4, 2026: Boeing 7378H4. ACCESS PANEL. DELAMINATED. DELAMINATED ACCESS PANEL 444BR ON RT PYLON. REPAIRED THE ACCESS PANEL IAW SRM 51-70-04-2R-10, REPAIR 10. (N8656B)
- [SDR JR2R20260903326](https://openairdocs.org/sdr/JR2R20260903326), Sep 3, 2026: Emb ERJ170200LR. SKIN. CHAFED. 429NR HAS DAMAGED, OVERSIZED SCREW HOLES ACROSS PANEL & CHAFING ON INNER SURFACE AROUND SCREW HOLES. REPAIRED. (N89357)
- [SDR JR2R20260903327](https://openairdocs.org/sdr/JR2R20260903327), Sep 3, 2026: Emb ERJ170200LR. SKIN. CHAFED. 419NR HAS DAMAGED, OVERSIZED SCREW HOLES ACROSS PANEL AND CHAFING ON INNER SURFACE AROUND SCREW HOLES. REPAIRED. (N89357)
- [SDR JR2R20260903329](https://openairdocs.org/sdr/JR2R20260903329), Sep 3, 2026: Emb ERJ170200LR. SKIN. CHAFED. 429ML HAS DAMAGED, OVERSIZED SCREW HOLES ACROSS PANEL & CHAFING ON INNER SURFACE AROUND SCREW HOLES. REPAIRED. (N89357)
- [SDR SWAA2026092865103](https://openairdocs.org/sdr/SWAA2026092865103), Sep 1, 2026: Boeing 7378H4. COWLING. DAMAGED. NR 1 ENGINE INLET COWL LIP SKIN HAVE LOOSE, PULLED, & SMOKING FASTENERS AT THE 3 O'CLOCK (2 EA), 5 O'CLOCK (4EA), 6 O'CL (N8548P)
- [SDR DALA2026090805019](https://openairdocs.org/sdr/DALA2026090805019), Sep 1, 2026: Boeing 767332. SKIN. WORN. WEAR ON CUT-OUT STRUCTURE AT AREA ACCESS PANEL 446BL AT RT PYLON. COMPLIED WITH ER/A 636485-14. (1789727)(AIRCRAFT GROUN (N195DN)
- [SDR UIEA2026081300755](https://openairdocs.org/sdr/UIEA2026081300755), Sep 1, 2026: Boeing 747412F. SKIN PANEL. CRACKED. NR 1 PYLON NAC STA 228 INBD STRUT SKIN PANEL 452ER CUTOUT CRACKED. CAT C TIME LIMITED REPAIR. CARRIED OUT PERMANENT REPA (N489MC)
- [SDR UIEA2026082900821](https://openairdocs.org/sdr/UIEA2026082900821), Sep 1, 2026: Boeing 747412F. COWLING. CRACKED. NR 3L CORE COWL MOST UPPER EDGE MID AREA FOUND CRACKED. REPAIRED IAW RI-71-13-18452 REV B. NO FURTHER DEFECTS NOTED. (N489MC)
- [SDR IPXA2026090886672](https://openairdocs.org/sdr/IPXA2026090886672), Aug 23, 2026: Boeing 75724APF. PANEL. CORRODED. MAJOR REPAIR, NR 1 ENGINE INBD INSIDE PANEL 443JL FWD LOWER PYLON SURFACE HAS CORROSION. CUT & REMOVED THE DAMAGE PART O (N441UP)
- [SDR IPXA2026082877723](https://openairdocs.org/sdr/IPXA2026082877723), Aug 20, 2026: Boeing 767316. SKIN. DENTED. DENTED SKIN, NR 2 ENG NOSE COWL INNER BARREL NEAR 6:00 POS. CUT OUT DAMAGE AND CLEANED, MEASURE CUT OUT DIA 0.8", FROM F (N393UP)
- [SDR DALA2026082004755](https://openairdocs.org/sdr/DALA2026082004755), Aug 20, 2026: Airbus A330323. PANEL. CRACKED. NR 2 PYLON, LATERAL PANELS, AREA OF FASTENERS NEAR UPPER EDGE OF THE EXTERNAL SURFACE OF THE RIGHT PYLON AT RIB 8 LEVEL  (N803NW)
- [SDR DALA2026082004754](https://openairdocs.org/sdr/DALA2026082004754), Aug 20, 2026: Airbus A330323. PANEL. CRACKED. NR 1 PYLON, LATERAL PANELS, AREA OF FASTENERS NEAR UPPER EDGE OF THE EXTERNAL SURFACE OF THE LEFT PYLON AT RIB 8 LEVEL F (N803NW)
- [SDR JR2R20260818112](https://openairdocs.org/sdr/JR2R20260818112), Aug 18, 2026: Emb ERJ170200LR. PANEL. CHAFED. 429NR HAS BARE METAL SPOTS AND CHFING ON INNER SURFACE. REPAIR (N86309)
- [SDR IPXA2026081244447](https://openairdocs.org/sdr/IPXA2026081244447), Aug 6, 2026: Boeing 76734AF. COWLING. DENTED. DENTED NR 2 ENG NOSE COWL INLET AT 7 & 5 O'CLOCK POSITIONS. CUT OUT THE DAMAGE & CLEAN, MEASURE THE CUT OUT ( (1) DIA :  (N331UP)
- [SDR SWAA2026082737942](https://openairdocs.org/sdr/SWAA2026082737942), Aug 3, 2026: Boeing 7378H4. SKIN. DAMAGED. NR 2 ENGINE INLET HAS PULLING FASTENERS AT 3 AND 9 O'CLOCK POSITIONS REMOVED AND REPLACED #2 ENGINE INLET COWL PER AMM 7 (N8546V)
- [SDR SWAA2026082715244](https://openairdocs.org/sdr/SWAA2026082715244), Aug 3, 2026: Boeing 7378H4. SKIN. DAMAGED. #1 ENGINE INLET HAS PULLING FASTENERS AT THE 3 O'CLOCK POSITION REMOVED AND REPLACED NR 1 ENGINE INLET COWL PER AMM 71-1 (N8546V)
- [SDR JR2R20250803825](https://openairdocs.org/sdr/JR2R20250803825), Aug 3, 2026: Emb ERJ170200LL. PANEL. CHAFED. PYLON PANEL 419ML HAS MULTIPLE CHAFES ON INSIDE OF PANEL OUT OF LIMITS. REPAIRED (N86311)
- [SDR JR2R20250803828](https://openairdocs.org/sdr/JR2R20250803828), Aug 3, 2026: Emb ERJ170200LL. PANEL. CHAFED. PYLON PANEL 419NR HAS MULTIPLE CHAFES ON INSIDE OF PANEL OUT OF LIMITS. REPAIRED (N86311)
- [SDR JR2R20250801825](https://openairdocs.org/sdr/JR2R20250801825), Aug 1, 2026: Emb ERJ170200LL. PANEL. CHAFED. PYLON PANEL 419ML HAS MULTIPLE CHAFES ON INSIDE OF PANEL. REPAIRED (N86311)
- [SDR JR2R20250801828](https://openairdocs.org/sdr/JR2R20250801828), Aug 1, 2026: Emb ERJ170200LL. PANEL. CHAFED. PYLON PANEL 419NR HAS MULTIPLE CHAFES ON INSIDE OF PANEL. REPAIRED. (N86311)
- [SDR SWAA2026082796842](https://openairdocs.org/sdr/SWAA2026082796842), Jul 23, 2026: Boeing 7378H4. SKID SHOE. DAMAGED. #2 ENGINE INLET COWL LIP SKIN HAS 4 FASTENERS PULLING AT 3 O'CLOCK POSITION. REMOVED AND REPLACED #2 ENGINE INLET COWL P (N8546V)
- [SDR SWAA2026082758386](https://openairdocs.org/sdr/SWAA2026082758386), Jul 23, 2026: Boeing 7378H4. SKIN. DAMAGED. #2 ENGINE INLET COWL LIP SKIN HAS 2 FASTENERS PULLING AT 9 O'CLOCK POSITION. REMOVED AND REPLACED #2 ENGINE INLET COWL P (N8546V)
- [SDR SWAA2026082780829](https://openairdocs.org/sdr/SWAA2026082780829), Jul 23, 2026: Boeing 7378H4. SKIN. DAMAGED. #1 ENGINE INLET COWL LIP SKIN HAS 1 FASTENER PULLING AT 3 O'CLOCK POSITION. REMOVED AND REPLACED #1 ENGINE INLET COWL PE (N8546V)
- [SDR IPXA2026072249873](https://openairdocs.org/sdr/IPXA2026072249873), Jul 20, 2026: Boeing 767300. SKIN. CRACKED. CRACKED SKIN, NR 1 ENG LT CORE COWL POSITION 9 O'CLOCK. REPAIRED DAMAGE AREA IAW SRM 54-45-01-2R-18, REV 95, AND EGAT WO (N373UP)
- [SDR IPXA2026072249902](https://openairdocs.org/sdr/IPXA2026072249902), Jul 20, 2026: Boeing 767300. SKIN. CRACKED. CRACK - SKIN , NO.1 ENG R/H CORE COWL LWR FWD LATCH AREA. PERFORMED THE HEAT TREATMENT FROM 2219-T31 TO T81 CONDITION. I (N373UP)
- [SDR IPXA2026072422572](https://openairdocs.org/sdr/IPXA2026072422572), Jul 18, 2026: Boeing 767346. SKIN. CRACKED. CRACKED NR 2 PYLON FAIRING PANEL 447 ELX. ACCOMPLISH THE REPAIR IAW SRM 54-52-70-2R-4, REV 55, AND EGAT WORK SHEET 60557 (N363UP)
- [SDR SWAA2026072152275](https://openairdocs.org/sdr/SWAA2026072152275), Jul 17, 2026: Boeing 7378. SKIN. CRACKED. ON POST-DOCK WALK AROUND, FOUND CRACKED ON NR 2 ENGINE LOWER PYLON, ABOVE TAIL CONE. CRACK MEASURES ROUGHLY 14 IN LENGTH (N8746Q)
- [SDR 2026F00152](https://openairdocs.org/sdr/2026F00152), Jul 17, 2026: Emb EMB505. SKIN. CORRODED. MOVED 1 AREA OF CORROSION LOCATED AFT OF RH PYLON TRAILING EDGE, INBD AREA ON FUSELAGE SKIN IAW SRM 51-12-01 AND SRM 51- (N416QS)
- [SDR IPXA2026082679985](https://openairdocs.org/sdr/IPXA2026082679985), Jul 15, 2026: Airbus A300F4622R. SKIN. CRACKED. PANEL 485AL HAS A CRACK ON THE FWD SIDE. INSTALLED SKIN PANEL ON PANEL 485AL FWD SIDE IAW SRM-51-40-21. (N136UP)
- [SDR HNAA2026082700798](https://openairdocs.org/sdr/HNAA2026082700798), Jul 15, 2026: Emb EMB145LR. HINGE. BROKEN. NR 1 ENG START VALVE ACCESS PANEL HINGE BROKEN. R & R HINGE IAW SRM 51-40-02 (N925AE)
- [SDR IPXA2026091160874](https://openairdocs.org/sdr/IPXA2026091160874), Jul 14, 2026: Airbus A300F4622R. SKIN. CRACKED. NR 1 PYLON, PRECOOLER AREA, INTERNAL LT SKIN, AT RIB 4, WITH CRACK. INSTALLED RIVETS (7EA) STEP 10 AND (1EA) STEP 1 AT N (N136UP)
- [SDR IPXA2026091160860](https://openairdocs.org/sdr/IPXA2026091160860), Jul 14, 2026: Airbus A300F4622R. SKIN. CRACKED. NR 1 PYLON, PRECOOLER AREA, INTERNAL RT SKIN, AT RIB 4, WITH CRACK. INSTALLED RIVETS (8EA) AT NR 1 PYLON, PRECOOLER AREA (N136UP)

All 4,353: https://openairdocs.org/jasc/5414/reports.md

## Other codes in chapter 54

- [JASC 5400](https://openairdocs.org/jasc/5400): Nacelle/Pylon Structure (1,907 reports)
- [JASC 5410](https://openairdocs.org/jasc/5410): Nacelle/Pylon, Main Frame (4,100 reports)
- [JASC 5411](https://openairdocs.org/jasc/5411): Nacelle/Pylon, Frame/Spar/Rib (1,453 reports)
- [JASC 5412](https://openairdocs.org/jasc/5412): Nacelle/Pylon, Bulkhead/Firewall (1,086 reports)
- [JASC 5413](https://openairdocs.org/jasc/5413): Nacelle/Pylon, Longeron/Stringer (220 reports)
- [JASC 5415](https://openairdocs.org/jasc/5415): Nacelle/Pylon, Attach Fittings (1,305 reports)
- [JASC 5420](https://openairdocs.org/jasc/5420): Nacelle/Pylon Miscellaneous Structure (3,946 reports)
- [JASC 5497](https://openairdocs.org/jasc/5497): Nacelle/Pylon System Wiring (53 reports)

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