Service difficulty reports

1,771,154 reports of malfunctions and defects, newest first. Air carriers must report; general aviation reporting is voluntary.

Query with SQL
duckdb -csv -c "SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy
  FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet'
  ORDER BY difficulty_date DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

SDR SWIA2026070376980Vane · damagedLEFT INBD FLAP VANE SKIN HAS DAMAGES ON THE LEADING EDGE. AFTER EVALUATION FOUND OUTSIDE OF LIMITS AND REPLACED LEADING EDGE SKIN WS56 , AND THE LEADING EDGE SKINS WS 105 AND WS 140 FOUND WITHIN LIMITS AND TREATED WITH ALODINE PRIMER AND TOP COAT ON WORKED AJul 3, 2026 · N982SW · Cndair CL6002B19 · AileronsSDR SWIA2026070376977Vane · chafedRT INBD FLAP VANE LE CHAFED/WORN AT RWS 56 (C-CHECK RO 08/29/2026)REMOVED AND REPLACED NEW IB LEADING SKIN FROM R/H IB FLAP WS 56 IAW CRJ200 SRM 51-10-06,51-42-13,51-40-11,57-52-00,51-21-11,51-25-06,51-25-16.Jul 3, 2026 · N982SW · Cndair CL6002B19 · Trailing Edge FlapsSDR SWIA2026070376975Pressure Blkhd · gougedDURING DETAIL INSPECTION OF AFT PRESS BULKHEAD FOUND GOUGE MARKS ON AREA AS WORKED - RIVET HEADS/HORIZONTAL ANGLE/BETWEEN RIVETS (C-CHECK RO 08/29/2026)COMPLETED REPAIR IAW CRJ 200 REO: 601R-53-61-8590.Jul 3, 2026 · N982SW · Cndair CL6002B19 · Fuselage Main, BulkheadSDR SWIA2026070376974Vane · chafedRIGHT INBD FLAP VANE LE CHAFED/WORN AT R/H WS 140 (C-CHECK RO 08/29/2026)REMOVED AND REPLACED LEADING EDGE SKIN FROM R/H IB FLAP VANE AT WS 140 IAW REO: 601R-57-52-004 AND IAW CRJ200 SRM 51-42-13,51-23-00,51-10-06,51-40-11,57-52-00, 51-21-11,51-25-06,51-25-16Jul 3, 2026 · N982SW · Cndair CL6002B19 · Trailing Edge FlapsSDR REXA2026082601709Retainer · corrodedCORROSION AND WEAR ON SEAL RETAINER OF PASSENGER DOOR LWR STEP PANEL 832FT. SEAL RETAINER ON PASSENGER DOOR LWR STEP PANEL 832FT WAS REPLACED PER CRJ-900 SRM 51-41-02-001-001-A01.Jul 3, 2026 · N926XJ · Cndair CL6002D24 · Passenger/Crew DoorsSDR REXA2026082401603Hinge Fitting · corrodedCORROSION WAS FOUND ON LH/RH NLG AFT DOOR HINGE FITTING (2 EAS) AND CORROSION ON RH/LH AIRFRAME HINGE FITTING (2 EAS) AT NLG DUE TO EXCESSIVE CORROSION ON LH/RH NLG AFT DOOR HINGE FITTING (2 EAS) AND RH/LH AIRFRAME HINGE FITTING (2 EAS) AT NLG WERE REPLACED PEJul 3, 2026 · N928XJ · Cndair CL6002D24 · Fuselage, Door HingeSDR REXA2026082401602Hinge Fitting · corrodedCORROSION WAS FOUND ON LH/RH NLG AFT DOOR HINGE FITTING (2 EAS) AND CORROSION ON RH/LH AIRFRAME HINGE FITTING (2 EAS) AT NLG DUE TO EXCESSIVE CORROSION ON LH/RH NLG AFT DOOR HINGE FITTING (2 EAS) AND RH/LH AIRFRAME HINGE FITTING (2 EAS) AT NLG WERE REPLACED PEJul 3, 2026 · N928XJ · Cndair CL6002D24 · Fuselage, Door HingeSDR REXA2026082401601Hinge Fitting · corrodedCORROSION WAS FOUND ON LT/RT NLG AFT DOOR HINGE FITTING (2 EAS) AND CORROSION ON RH/LH AIRFRAME HINGE FITTING (2 EAS) AT NLG DUE TO EXCESSIVE CORROSION ON LH/RH NLG AFT DOOR HINGE FITTING (2 EAS) AND RH/LH AIRFRAME HINGE FITTING (2 EAS) AT NLG WERE REPLACED PEJul 3, 2026 · N928XJ · Cndair CL6002D24 · Fuselage, Door HingeSDR VNAA202608210023Seat Track · corrodedCORROSION ON SEAT RAIL RBL9 (03 SEGMENTS), (SEG 1) BTW FS 349.00 TO FS 485.00, (SEG 2) BTW FS 485.00 TO FS 581.00, (SEG 3) BTW FS 581.00 TO FS 677.00 AT PASSENGER CABIN. CORROSION ON SEAT RAIL RBL9 (03 SEGMENTS), (SEG 1) BTW FS 349.00 TO FS 485.00, (SEG 2) BJul 3, 2026 · N544EA · Cndair CL6002C10 · Fuselage, Seat/Cargo Attach FittingsSDR VNAA202608210021Seat Track · corrodedCORROSION ON SIDE SEAT RAILS (L/H AND R/H) (4 EAS) LOCATED APPROXIMATELY AT FS 785.15 TO 938.00 ON PAX CABIN. CORROSION ON SIDE SEAT RAILS (L/H AND R/H) (4 EAS) LOCATED APPROXIMATELY AT FS 785.15 TO 938.00 ON PAX CABIN WERE EVALUATED DUE TO EXCESSIVE DAMAGE PJul 3, 2026 · N544EA · Cndair CL6002C10 · Fuselage, Seat/Cargo Attach FittingsSDR VNAA202608210020Seat Track · corrodedCORROSION ON SIDE SEAT RAILS L/H (5 EAS) LOCATED APPROXIMATELY AT FS 379.00 TO 761.85 ON PAX CABIN. CORROSION ON SIDE SEAT RAILS L/H (5 EAS) LOCATED APPROXIMATELY AT FS 379.00 TO 761.85 ON PAX CABIN WAS REMOVED PER CRJ-700 SRM 51-21-06-001-001-A01, WERE EVAJul 3, 2026 · N544EA · Cndair CL6002C10 · Fuselage, Seat/Cargo Attach FittingsSDR VNAA202608210019Seat Track · corrodedCORROSION ON SIDE SEAT RAILS R/H (5 EAS) LOCATED APPROXIMATELY AT FS 485.00 TO 761.85 ON PAX CABIN. CORROSION ON SIDE SEAT RAILS R/H (5 EAS) LOCATED APPROXIMATELY AT FS 485.00 TO 761.85 ON PAX CABIN WAS REMOVED PER CRJ-700 SRM 51-21-06-001-001-A01, WERE EVALJul 3, 2026 · N544EA · Cndair CL6002C10 · Fuselage, Seat/Cargo Attach FittingsSDR VNAA202608210018Fitting · corrodedCORROSION OF FITTING SUPPORT (2 EA) AT FWD GALLEY. CORROSION OF FITTING SUPPORT (2 EA) AT FWD GALEY WAS EVALUATED OUT LIMITS PER CRJ 700 SRM 53-00-00-101-001-A01 AND REPLACED PER CRJ700 SRM 51-42-21-001-001-A01.Jul 3, 2026 · N544EA · Cndair CL6002C10 · Fuselage Miscellaneous StructureSDR VNAA202608210017Access Panel · corrodedCORROSION ON CONTERSINKS OF ACCESS PANEL 542AT,642 AT ACCESS PANEL 642AT MUST BE REPLACED IAW TICKET #86402, AND ACCESS PANEL 542AT WAS REPAIRED PER REO 670-57-21-1146 REV. -AJul 3, 2026 · N544EA · Cndair CL6002C10 · Wing, Plate/SkinSDR VNAA202608210010Bracket · crackedCRACKS ON SUPPORT BASE MAIN BATTERY DIRECT BUS (JB6) AT FWD EQUIPMENT COMPARTMENT. CRACKED SUPPORT BASE MAIN BATTERY DIRECT BUS (JB6) AT FWD EQUIPMENT COMPARTMENT WAS REPLACED PER CRJ-700 SRM 51-42-06-001-001-A01Jul 3, 2026 · N544EA · Cndair CL6002C10 · Fuselage Miscellaneous StructureSDR IPXA2026081792411Web · crackedRIGHT WING TRAILING EDGE BELOW SPOILER NR 3 I/B HINGE, WEB HAS TWO CRACKS. INSTALLED WEB AT RT WING TRAILING EDGE BELOW SPOILER NR 3 INBD IAW SRM 51-40-21.Jul 3, 2026 · N144UP · Airbus A300F4622R · Wing Miscellaneous StructureSDR IPXA2026081493094Support Angle · crackedRIGHT WING - FUSELAGE UPPER SURFACE FR 47 - 48 PANEL 677CT SUPPORT ANGLE HAS 1 CRACK. INSTALLED NEW PART AT RT WING - FUSELAGE UPPER SURFACE FR 47 - 48. IAW SRM 51-40-21.Jul 3, 2026 · N144UP · Airbus A300F4622R · Wing Miscellaneous StructureSDR IPXA2026081492391Web · crackedRIGHT WING TRAILING EDGE BELOW SPOILER NR 4 INBD HINGE, WEB HAS CORROSION. INSTALLED NEW HINGE RT WING TRAILING EDGE BELOW SPOILER NR 4 INBD, IAW SRM 51-40-23.Jul 3, 2026 · N144UP · Airbus A300F4622R · SpoilersSDR IPXA2026081193241Spar · damagedRT WING TO FUSELAGE UPPER SURFACE FAIRING PROFILE HAS (8EA) ELONGATED HOLES. NEW SPLICE AND SPAR LOCATED AND DRILLED IAW SRM 51-40-44-001.Jul 3, 2026 · N144UP · Airbus A300F4622R · Wing SparSDR SWAA2026081718320Engine · slowON TAKEOFF ROLL NR 1 ENG SIGNIFICANTLY OUT ACCELERATED NR 2 WHEN TOGA WAS SELECTED RESULTING IN A YAW. TAKEOFF REJECTED AT LESS THAN 20KTS. . TROUBLESHOT IAW AMM 71-00-00-700-824-F00. RAN TEST 8 ACCELERATION CHECK. FOUND NR 1 & 2 ENGINES WITHIN ACCELERATION LIJul 3, 2026 · N7831B · Boeing 7377CT · Engine (Turbine/Turboprop)SDR SWAA2026081262575Scuff Plate · crackedCRACKED FWD CORNER SCUFF PLATE, AFT CARGO BAY. REPAIRED THE FWD CORNER SCUFF PLATE IAW SRM 53-60-15-2R-1, REPAIR 1, & BAC 5975.Jul 3, 2026 · N7732A · Boeing 7377BD · Fuselage Miscellaneous StructureSDR SWAA2026081110209Access Panel · crackedCRACKED ACCESS PANEL 542BB, LT WING. REPAIRED THE ACCESS PANEL IAW EA M-21-157-01063.Jul 3, 2026 · N7880D · Boeing 7377K5 · Wing, Plate/SkinSDR AALA202608069589Bellcrank · out of adjustAIRCRAFT IN BASE MAINTENANCE: PASSENGER CREW DOOR 842 TORSION BAR BELL-CRANK OF THE COMPENSATION MECHANISM IS OUT OF ADJUSTEMENT -MAINTENANCE ADJUSTED TORSION BAR BELL-CRANK OF THE COMPENSATION MECHANISM PER AMM 52-13-21Jul 3, 2026 · N9016 · Airbus A319115 · Passenger/Crew DoorsSDR SIMA20260703008Skin · crackedLEFT WING EXTERNAL SKIN IS CRACKED AT THE MLG BAY CUTOUT FWD EDGE, JUST INBD OF RIB 3A. REPAIRED LT WING EXTERNAL LOWER SKIN AT MLG BAY CUTOUT FWD EDGE JUST INBD OF RIB 3A IAW ENVOY ERS ERS-EJ -57MR-1819 (MAJOR REPAIR)Jul 3, 2026 · N210NN · Emb ERJ170200LR · Wing, Plate/SkinSDR SIMA20260703009Skin · crackedRIGHT WING EXTERNAL SKIN IS CRACKED AT THE MLG BAY CUTOUT FWD EDGE, JUST INBD OF RIB 3A (MAJOR REPAIR) REPAIRED RH WING EXTERNAL LOWER SKIN AT MLG BAY CUTOUT FWD EDGE JUST INBD OF RIB 3A IAW ENVOY ERS-EJ-57MR-1820Jul 3, 2026 · N210NN · Emb ERJ170200LR · Wing, Plate/SkinSDR AALA202607318253Floorbeam · corrodedAIRCRAFT IN BASE MAINTENANCE: CABIN AFT WET AREA FLOOR SUPPORT HAS EXFOLIATION CORROSION STATION 950, RBL 16-25. MAINTENANCE REPLACED PART 147A5676-2 FLOOR SUPPORT AT STATION 950, RBL 16-25 PER BOEING DRAWING 815A0010 AND AARD 51-00-05-1.Jul 3, 2026 · N904AN · Boeing 737823 · Fuselage Main, Floor BeamSDR SIMA20260703003Seat Track · corrodedLEFT LOWER SEAT TRACK HAS CORROSION JUST FWD OF FRAME 82. (MAJOR REPAIR) (LEVEL 2 CORROSION) R & R SEAT TRACK AND REPAIR PIECES BTW FR 81-85 IAW SRM 53-00-10, REPAIR 01P AND ETN-EJ-53-010 R1Jul 3, 2026 · N210NN · Emb ERJ170200LR · Fuselage, Seat/Cargo Attach FittingsSDR SIMA20260703002Seat Track · corrodedRIGHT LOWER SEAT TRACK HAS CORROSION BETWEEN FRAMES 80-81. (MAJOR REPAIR) (LEVEL 2 CORROSION) R & R RT LOWER SEAT TRACK BEAM (FILLER) FOR SEAT TRACK BEAM SPLICE REPAIR AND SPLICE REPAIR PIECES IAW SRM 53-00-10 RE01, ITEM 6 & ETN-EJ-53-010 R1, PROCEDURE 3.Jul 3, 2026 · N210NN · Emb ERJ170200LR · Fuselage, Seat/Cargo Attach FittingsSDR SIMA20260703007Seat Track · corrodedRIGHT LOWER SEAT TRACK HAS CORROSION BETWEEN FRAMES 84-85, AT THE END OF THE SEAT TRACK. (MAJOR REPAIR) (LEVEL 2 CORROSION) R & R RT LOWER SEAT TRACK BEAM (FILLER) FOR SEAT TRACK BEAM SPLICE REPAIR AND SPLICE REPAIR PIECES IAW SRM 53-00-10, RE01, ITEM 6 & ETN-Jul 3, 2026 · N210NN · Emb ERJ170200LR · Fuselage, Seat/Cargo Attach FittingsSDR SIMA20260703005Seat Track · corrodedLEFT LOWER SEAT TRACK HAS CORROSION BETWEEN FRAMES 84-85, AT THE END OF THE SEAT TRACK. (MAJOR REPAIR) (LEVEL 2 CORROSION) R & R SEAT TRACK AND REPAIR PIECES BTW FR 81-85 IAW SRM 53-00-10/REPAIR 01P AND ETN-EJ-53-010 R1.Jul 3, 2026 · N210NN · Emb ERJ170200LR · Fuselage, Seat/Cargo Attach FittingsSDR SIMA20260703004Seat Track · corrodedLEFT LOWER SEAT TRACK HAS CORROSION BETWEEN FRAMES 83-84. (MAJOR REPAIR) (LEVEL 2 CORROSION) R & R SEAT TRACK AND REPAIR PIECES BTW FR 81-85 IAW ERJ 175 SRM 53-00-10/REPAIR 01P AND ETN# ETN-EJ-53-010 R1Jul 3, 2026 · N210NN · Emb ERJ170200LR · Fuselage, Seat/Cargo Attach FittingsSDR SIMA20260703006Seat Track · corrodedRIGHT LOWER SEAT TRACK HAS CORROSION BETWEEN FRAMES 83-84. (MAJOR REPAIR) (LEVEL 2 CORROSION). R & R RT LOWER SEAT TRACK BEAM (FILLER) FOR SEAT TRACK BEAM SPLICE REPAIR AND SPLICE REPAIR PIECES IAW SRM 53-00-10 RE01, ITEM 6 & ENVOY ETN-EJ-53-010 R1, PROCEDUREJul 3, 2026 · N210NN · Emb ERJ170200LR · Fuselage, Seat/Cargo Attach FittingsSDR AALA202607299385Floor Support · corrodedAIRCRAFT IN BASE MAINTENANCE: CABIN AFT WEAT AREA FLOOR INTERCOSTAL HAS GALVANIC CORROSION AT STA 947 TO 967, LBL 25. MAINTENANCE REPLACED INTERCOSTAL AT STA 947 TO 967, LBL 25 PER 51-00-05-1R.Jul 3, 2026 · N904AN · Boeing 737823 · Fuselage Miscellaneous StructureSDR AALA202607295200Floorbeam · corrodedAIRCRAFT IN BASE MAINTENANCE: CBIN AFT WET AREA TRANSVERSE FLOORBEAM HAS EXFOLIATION CORROSION AT STA 950, RBL 25 TO RBL 54. MAINTENANCE REPLACED TRANSVERSE FLOORBEAM AT STA 950, RBL 25 TO RBL 54 PER BOEING DRAWING 815A0010 AND AARD 51-00-05-1.Jul 3, 2026 · N904AN · Boeing 737823 · Fuselage Main, Floor BeamSDR AALA202607296999Floorbeam · corrodedAIRCRAFT IN BASE MAINTENANCE: AFT CABIN WET AREA O/B AFT LAV MOUNT FLOORBEAM HAS GALVANIC CORROSION AT STA 947, RBL 54. MAINTENANCE REPAIRED FLOORBEAM (T-CAP INSTALLED) AT STA 947, RBL 54 PER SRM53-70-51-2R-5, BOEING DRAWING 815A0010, AND AARD 51-00-05-01.Jul 3, 2026 · N904AN · Boeing 737823 · Fuselage Main, Floor BeamSDR AALA202607292898Angle · corrodedAIRCRAFT IN BASE MAINTENANCE: CABIN AFT WET AREA R-2 CREASE ANGLE HAS FILFORM CORROSION AT STA 967 TO STA 986, RBL 47. MAINTENANCE REPLACED CREASE ANGLE AT STA 967 TO STA 986, RBL 47 PER BOEING DRAWING 147A850 AND AARD 51-00-05-1.Jul 3, 2026 · N904AN · Boeing 737823 · Fuselage Miscellaneous StructureSDR IPXA2026072984187Fitting · corrodedFOUND THE CORROSION ON INBOARD LOWER FITTING CAP AT LT BODY GEAR. IAW AMM 32-13-01-404-022 REV. 117 AND EI NO. F2026A53M-1507 SEQUENCE A, PERFORMED INSTALL, LEAK CHECK OF HYDRAULIC HOSE CONNECTIONS, TEST AND SWING AT LEFT BODY LANDING GEAR. CONDITION CHECK NOJul 3, 2026 · N583UP · Boeing 7474R7F · Main Landing GearSDR IPXA2026072984213Fitting · corrodedFOUND THE CORROSION ON INBD LOWER FITTING CAP AT RT BODY GEAR. IAW AMM 32-13-01-404-022 REV. 117 AND EI F2026A53M-1506 SEQUENCE A, PERFORMED INSTALL, LEAK CHECK OF HYDRAULIC HOSE CONNECTIONS, TEST AND SWING AT RIGHT BODY LANDING GEAR. CONDITION CHECKED NORMJul 3, 2026 · N583UP · Boeing 7474R7F · Main Landing GearSDR SWAA2026072756208Scuff Plate · crackedAFT CARGO FWD CORNER SCUFF PLATE CRACKED AFT CARGO FWD CORNER SCUFF PLATE. REPAIRED IAW SRM 53-60-15-2R-2 4B PO 1102826-SWA.Jul 3, 2026 · N487WN · Boeing 7377H4 · Fuselage Miscellaneous StructureSDR SWAA2026072720939Floor Panel · delaminatedPAX CABIN FLOOR PANEL 232SF IS DELAMINATED 11 INCHES FROM AFT EDGE. REPAIRED IAW SRM 53-00-50-2R-1Jul 3, 2026 · N487WN · Boeing 7377H4 · Fuselage Floor PanelSDR SWAA2026072727142Scuff Plate · crackedAFT CARGO AFT CORNER SCUFF PLATE CRACKED AFT CARGO AFT CORNER SCUFF PLATE. REPAIRED PER SRM 53-60-15-2R-2 4B PO# 1102828-SWA.Jul 3, 2026 · N487WN · Boeing 7377H4 · Fuselage Miscellaneous StructureSDR SWAA2026072706374Pressure Deck · crackedFOUND 1EA CRACK AT HORIZONTAL PRESSURE DECK WEB BS 663 TO 675, RBL 41. REPAIRED HORIZONTAL PRESSURE DECK WEB IAW SRM 53-40-51-2R-2.Jul 3, 2026 · N487WN · Boeing 7377H4 · Fuselage Main, StructureSDR AALA202607271761Bellcrank · out of rigAIRCRAFT IN BASE MAINTENANCE: PASSENGER / CREW DOOR 831 TORSION BAR BELL-CRANK OF THE COMPENSATION MECHANISM IS OUT OF ADJUSTMENT AT THE RIGGING POINT. MAINTENANCE ADJUSTED TORSION BAR BELL-CRANK OF THE COMPENSATION MECHANISM PER AMM 52-11-21.Jul 3, 2026 · N9016 · Airbus A319115 · Passenger/Crew DoorsSDR R61A2026072200207Seat Track · corrodedDURING HEAVY CHECK FWD FUSELAGE L/H SEAT TRACK BETWEEN FR 12 - FR 20 FOUND WITH SPOTS OF CORROSION. REMOVED AND REPLACED SEAT TRACK IAW EMB 170/175 SRM 51-43-03Jul 3, 2026 · N213JQ · Emb ERJ170100LR · Fuselage, Seat/Cargo Attach FittingsSDR R61A2026072200206Crossbeam · corrodedDURING HEAVY CHECK CF III FR 84 RBL 30 FOUND CORRODED UPPER FLANGE CROSSBEAM. REPAIRED CROSSBEAM IAW EMB ETD 2026-170-011629 REV. BJul 3, 2026 · N213JQ · Emb ERJ170100LR · Fuselage Main, StructureSDR R61A2026072200205Crossbeam · corrodedDURING HEAVY CHECK CF III FR 84 RBL 30 FOUND CORRODED UPPER FLANGE CROSSBEAM. REPAIRED CROSSBEAM IAW EMB ETD 2026-170-011629 REV. BJul 3, 2026 · N213JQ · Emb ERJ170100LR · Fuselage Main, StructureSDR R61A2026072200204Floor Support · corrodedDURING HEAVY CHECK CF III RT FLOOR SUPPORT PANEL BETWEEN FR 88-FR 90 RBL 40 FOUND CORRODED. REMOVED AND REPLACED SUPPORT PANEL IAW 170/175 SRM 51-43-03Jul 3, 2026 · N213JQ · Emb ERJ170100LR · Fuselage Miscellaneous StructureSDR R61A2026072200203Beam · corrodedDURING HEAVY CHECK FWD CARGO DOOR CUTOUT LOWER BEAM UNDER DOOR FITTINGS FOUND CORROSION. REMOVED AND REPLACED LOWER BEAM IAW EMB 170/175 SRM 51-41-01Jul 3, 2026 · N213JQ · Emb ERJ170100LR · Fuselage Main, StructureSDR R61A2026072200202Seal Rest · corrodedDURING HEAVY CHECK FWD CARGO DOOR CUTOUT AFT LOWER SEAL REST FOUND WITH CORROSION. REMOVED AND REPLACED SEAL REST IAW EMB 170/175 SRM 51-41-01Jul 3, 2026 · N213JQ · Emb ERJ170100LR · Fuselage Main, StructureSDR R61A2026072200201Seal Rest · corrodedDURING HEAVY CHECK FWD CARGO DOOR CUTOUT CENTER LOWER SEAL REST FOUND WITH CORROSION. REMOVED AND REPLACED SEAL REST IAW EMB 170/175 SRM 51-41-01Jul 3, 2026 · N213JQ · Emb ERJ170100LR · Fuselage Main, Structure