ACCOMPLISHED MAJOR REPAIR/REPLACEMENT OF RH BODY LANDING GEAR LOWER BEARING CAP DUE TO TH - [SDR UIEA2026092300913](https://openairdocs.org/sdr/UIEA2026092300913.md): Skin · dented · Sep 25, 2026 · N404KZ · Boeing 747481F · Trailing Edge Flaps > RH WING INBOARD AND AFT FLAP LOWER SURFACE HAS A DENT ABOUT WBL 340.(
ACCOMPLISHED MAJOR REPAIR OF RH INBOARD AND AFT FLAP LOWER SURFACE. HOT-BONDED METAL-TO-METAL REPAIR IAW SRM 57-53-01-2R-1 REPAIR 1 DETAIL III FIG 201, SHEET 4 TABLE III FIG 201, SHEET 10 - [SDR KCSA2026090253](https://openairdocs.org/sdr/KCSA2026090253.md): Battery Pack · inoperative · Sep 2, 2026 · N766CK · Boeing 747481F · Emergency Lighting > WHILE WORKING A LIGHTING ISSUE, FME DISCOVERED CENTER EMERGENCY LIGHTING ON CEILING EXIT LIGHT DOES NOT ILLUMINATE W/ EMERGENCY LIGHTS ON. REMOVED BATTERY PACK & REINSTALLED IAW B747-400 AMM 33-51-00, REPLACED BATTERY POWER SUPPLY FUSES IAW AMM 33-51-00 & TES - [SDR UIEA2026082800820](https://openairdocs.org/sdr/UIEA2026082800820.md): Position Unit · faulted · Aug 28, 2026 · N404KZ · Boeing 747481F · Landing Gear Position and Warning > AFTER TAKEOFF ON INITIAL CLIMB, GEAR TILT, EICAS MSG. RT BODY GEAR DID NOT RETRACT AND TILT INDICATION. COMPLETED CHECKLIST. MSG APPEARED AFTER GEAR RETRACTION STARTED. R & R RT BODY GEAR TRUCK POSITIONER IAW AMM 32-13-15/401 & IPC 32-13-11-01. OPS & LEAK CH - [SDR KCSA202607281104](https://openairdocs.org/sdr/KCSA202607281104.md): Lamp · inoperative · Jul 28, 2026 · N766CK · Boeing 747481F · Emergency Lighting > EMERGENCY LIGHT OUT - [SDR KCSA202607281103](https://openairdocs.org/sdr/KCSA202607281103.md): Shear Tie · cracked · Jul 28, 2026 · N766CK · Boeing 747481F · Fuselage Internal Mounting Structure > BS 1000 FRONT SPAR SHEAR TIE AND INTERCOSTAL LUG FITTING INSPECTION AND REPAIR. - [SDR KCSA202607281102](https://openairdocs.org/sdr/KCSA202607281102.md): Tension Tie · cracked · Jul 28, 2026 · N766CK · Boeing 747481F · Fuselage Miscellaneous Structure > DURING E.O. 5312-21-01, DEFECT SIGNAL FOUND AT BS 740 L/H TENSION TIE CHANNEL FWD - [SDR KCSA202607281101](https://openairdocs.org/sdr/KCSA202607281101.md): Tension Tie · cracked · Jul 28, 2026 · N766CK · Boeing 747481F · Fuselage Miscellaneous Structure > DURING E.O. 5312-21-01, DEFECT SIGNAL FOUND AT BS 740 RT TENSION TIE AFT CHANNEL - [SDR KCSA202607281100](https://openairdocs.org/sdr/KCSA202607281100.md): Tension Tie · cracked · Jul 28, 2026 · N766CK · Boeing 747481F · Fuselage Miscellaneous Structure > DURING EO 5312-21-01, DEFECT SIGNAL FOUND AT LT BS 720 TENSION TIE AFT CHANNEL - [SDR KCSA2026071540](https://openairdocs.org/sdr/KCSA2026071540.md): Circuit Breaker · tripped · Jul 15, 2026 · N768CK · Boeing 747481F · Autopilot System > AC DIST P6 BREAKER POP INFLIGHT W/ ASSOCIATED EICAS MESSAGES. PERFORMED INSPECTION OF AC DIST P6 BREAKER AND ASSOCIATED WIRING, NO DEFECTS FOUND IAW B747-400 AMM 20-60-03. PERFORMED AUTOLAND UNIQUE GROUND TEST IAW AMM 22-10-00. ALL CHECKS SATISFACTORY, NO DE - [SDR UIEA2026062800550](https://openairdocs.org/sdr/UIEA2026062800550.md): Wire · damaged · Jun 27, 2026 · N404KZ · Boeing 747481F · Fire Protection System Wiring > FIRE APU WARNING MSG. DISCHARGED BOTTLE. REF WDM 26-15-11-1 INSPECTED AND FOUND W720-452-18R AND W720-451-18R SHORTED TO EACH OTHER UNDER CLAMP. REPAIRED WIRES PER SWPM 20-30-12. FIRE SYSTEM TEST PASSED FOR APU LOOPS A ND B PER AMM 26-15-00-735-009.
) - [SDR KCSA202605121038](https://openairdocs.org/sdr/KCSA202605121038.md): Escape Reel · damaged · May 12, 2026 · N767CK · Boeing 747481F · Emergency Equipment > NR 1 EMERGENCY DESCENT DEVICE REQUIRES REPLACEMENT - [SDR KCSA2026032512](https://openairdocs.org/sdr/KCSA2026032512.md): Escape Reel · unserviceable · Mar 25, 2026 · N766CK · Boeing 747481F · Emergency Equipment > NR 1 EMERGENCY DESCENT DEVICE DEPLOYED. R & R EMERGENCY DESCENT DEVICE IAW AMM 25-61-01. NO DEFECTS NOTED. CHECKS GOOD. NR 2 EMERGENCY DESCENT DEVICE DEPLOYED. R&R EMERGENCY DESCENT DEVICE IAW AMM 25-61-01. NO DEFECTS NOTED. CHECKS GOOD. NR 3 EMERGENCY DE - [SDR KCSA202512241576](https://openairdocs.org/sdr/KCSA202512241576.md): Escape Reel · unwanted deploy · Dec 15, 2025 · N768CK · Boeing 747481F · Emergency Equipment > SUSPECTED HARD LANDING. NG TOUCHDOWN. A/T: PERFORMED HARD LANDING COND INSP IAW B747-400 AMM 05-51-05, NDN AT THIS TIME. MULTIPLE EMERGENCY DESCENT DEVICES DEPLOYED. A/T: TRFD TO DMI 100265286 IAW MEL 25-61-1-1-1 CAT C. DECENT DEVICES R & R IAW AMM 25-61-01. - [SDR KCSA2025100954](https://openairdocs.org/sdr/KCSA2025100954.md): Manifold · cracked · Oct 7, 2025 · N767CK · Boeing 747481F · Engine Fuel Distribution > NR 3 ENG FAILED, STABLE/NO VIBRATIONS, N1-26.9, OIL PSI 9 PSI 1 MIN THEN ABOVE 10 PSI. N2-26.2, TIME OF FAIL 2243 IN THE CLIMB. IAW FIM 73-00 FIG 114 FAULT TREE PERFD ENG FUEL SUCTION FEED OPS TEST IAW AMM 28-22-00. OPS CHK FAILED. NO FUEL FLOW IND ON START U - [SDR KCSA2025080242](https://openairdocs.org/sdr/KCSA2025080242.md): Handle · loose · Aug 2, 2025 · N766CK · Boeing 747481F · Emergency Exits > DOOR FLIGHT DECK OVERHEAD. FOUND FLIGHT DECK OVERHEAD DOOR/HATCH HANDLE (INTERIOR) SLIGHTLY IN THE OPEN POSITION. OPEN AND CLOSED OVERHEAD HATCH FROM THE INSIDE IAW KA B747-400 AMM 52-21-00. OPERATIONS CHECKED GOOD. NO DEFECTS NOTED. OK TO CONTINUE IN SERVICE - [SDR KCSA2025061933](https://openairdocs.org/sdr/KCSA2025061933.md): Handle · unsecure · Jun 19, 2025 · N766CK · Boeing 747481F · Emergency Exits > 100253584 - DOOR FLIGHT DECK OVERHEAD ON LANDING. FOUND FLIGHT DECK OVERHEAD DOOR HANDLE TO BE SLIGHTLY OPEN, OPENED AND CLOSED FLIGHT DECK OVERHEAD DOOR. ALL CHECKS GOOD IAW B747-400 AMM 52-21-00. MESSAGE CLEARED. - [SDR KCSA202505161079](https://openairdocs.org/sdr/KCSA202505161079.md): Bulb · inoperative · May 16, 2025 · N768CK · Boeing 747481F · Emergency Lighting > AFT L1 DOOR SILL EMERGENCY LIGHT IS INOP. - [SDR KCSA202505013019](https://openairdocs.org/sdr/KCSA202505013019.md): Proximity Switch · faulted · Apr 30, 2025 · N768CK · Boeing 747481F · Landing Gear Position and Warning > GEAR TILT ON TAKEOFF ADVISORY MESSAGE. PERFORMED OPERATIONAL TEST OF PROXIMITY SWITCH ELECTRONIC UNIT IAW B747-400 AMM 32-09-03 OPERATIONAL CHECKED PASS. - [SDR KCSA2025041716](https://openairdocs.org/sdr/KCSA2025041716.md): Nacelle · damaged · Apr 17, 2025 · N768CK · Boeing 747481F · Nacelle/Pylon, Main Frame > LANDING HARD ENGINE POD STRICK #4. FOUND DAMAGE ON ENGINE 4 INBOARD FAN COWL AND THRUST REVERSER, OUTBOARD FAN AND THRUST REVERSER INSPECTED ENGINE 4 IAW B747-400 AMM 05-51-06 NO OTHER DAMAGE FOUND. REPAIRED AND COMPLIED WITH DAMAGE FOUND IAW 500 14052 AND SR - [SDR KCSA202504161075](https://openairdocs.org/sdr/KCSA202504161075.md): Battery Pack · inoperative · Apr 16, 2025 · N766CK · Boeing 747481F · Emergency Lighting > AFT EMERGENCY LIGHTS AND EXTERIOR SLIDE LIGHT INOP - [SDR KCSA202502191016](https://openairdocs.org/sdr/KCSA202502191016.md): Trunnion · corroded · Feb 19, 2025 · N768CK · Boeing 747481F · Fuselage, Landing Gear Attach Fittings > DURING INSPECTION OF WING LANDING GEAR RH AFT TRUNNION, FOUND SIGNS OF CORROSION AT AFT TRUNNION WHERE THE TRUNNION SLEVE BEGINS. - [SDR KCSA202502181015](https://openairdocs.org/sdr/KCSA202502181015.md): Attach Angle · cracked · Feb 18, 2025 · N768CK · Boeing 747481F · Fuselage Main, Attach Fittings > CREASE BEAM LOWER ATTACHMENT ANGLE INSIDE RADIUS CRACKED FWD SIDE OF STATION 960 NEXT TO STRINGER 7-L - [SDR KCSA202502181014](https://openairdocs.org/sdr/KCSA202502181014.md): Tension Tie · cracked · Feb 18, 2025 · N768CK · Boeing 747481F · Fuselage Miscellaneous Structure > CRACK INDICATION ON RH SIDE STA 740 TENSION TIES CHANNELS. - [SDR KCSA202502181013](https://openairdocs.org/sdr/KCSA202502181013.md): Tension Tie · cracked · Feb 18, 2025 · N768CK · Boeing 747481F · Fuselage Miscellaneous Structure > AFTER NDT INSPECTION FOUND A CRACK AT RH SIDE STA 720 IN AFT TENSION TIE CHANNEL O/B AFT FASTENER HOLE. - [SDR KCSA202502181012](https://openairdocs.org/sdr/KCSA202502181012.md): Tension Tie · cracked · Feb 18, 2025 · N768CK · Boeing 747481F · Fuselage Miscellaneous Structure > CRACK INDICATION ON LH SIDE STA 740 TENSION TIES CHANNELS. - [SDR KCSA202502041006](https://openairdocs.org/sdr/KCSA202502041006.md): Light · inoperative · Feb 4, 2025 · N766CK · Boeing 747481F · Emergency Lighting > UPPER DECK 2ND FROM AFT EMERGENCY LIGHT INOP - [SDR KCSA202502041005](https://openairdocs.org/sdr/KCSA202502041005.md): Light · inoperative · Feb 4, 2025 · N766CK · Boeing 747481F · Emergency Lighting > UPPER DECK AFT EMERGENCY LIGHT INOP - [SDR KCSA202502041004](https://openairdocs.org/sdr/KCSA202502041004.md): Light · inoperative · Feb 4, 2025 · N766CK · Boeing 747481F · Emergency Lighting > UPPER DECK EMERGENCY EXIT SIGN INOP - [SDR KCSA202410021113](https://openairdocs.org/sdr/KCSA202410021113.md): Intercostal · cracked · Oct 2, 2024 · N767CK · Boeing 747481F · Fuselage Miscellaneous Structure > CRACK ON L/H INTERCOSTAL LOWER CAP STA 960-980, BETWEEN STRINGER 7 AND 6 - [SDR KCSA202410021112](https://openairdocs.org/sdr/KCSA202410021112.md): Crease Beam · cracked · Oct 2, 2024 · N767CK · Boeing 747481F · Fuselage Main, Structure > CRACK ON CREASE BEAM WEB L/H SIDE, STA 980-997 BETWEEN STRINGER 4 AND 5 - [SDR KCSA202410021111](https://openairdocs.org/sdr/KCSA202410021111.md): Crease Beam · cracked · Oct 2, 2024 · N767CK · Boeing 747481F · Fuselage Main, Structure > CRACK ON CREASE BEAM WEB R/H SIDE, STA 980-997 BETWEEN STRINGER 4 AND 5 - [SDR KCSA202409261110](https://openairdocs.org/sdr/KCSA202409261110.md): Shear Tie · cracked · Sep 26, 2024 · N767CK · Boeing 747481F · Fuselage Internal Mounting Structure > INTERCOSTAL SHEAR TIE AT STA 1000 LBL 75.92 HAS A CRACK INDICATION AT TOP STANDOFF FASTENER - [SDR KCSA202409261109](https://openairdocs.org/sdr/KCSA202409261109.md): Lug · cracked · Sep 26, 2024 · N767CK · Boeing 747481F · Fuselage Main, Attach Fittings > INTERCOSTAL LUG FITTING AT STA 1000 RBL 11.33 HAS A CRACK INDICATION ON O/B SIDE - [SDR UIEA2024081200826](https://openairdocs.org/sdr/UIEA2024081200826.md): Hydraulic System · leaking · Aug 12, 2024 · N404KZ · Boeing 747481F · Hydraulic System, Main > RTB - AFTER TAKEOFF. SYS 4 HYDS FAILED. FLUID LEVEL 0. A/C WOULD NOT PRESSURIZE. DURING FUEL DUMP FOR RETURN. SYS 1 LOST ALL REMAINING FLUID. SYS 2 HYD FLUID LEVEL DECREASING (DID NOT GO TO 0). ON LANDING. FOUND LH MLG WHEELS 7 & 8 BLOWN. R/R #7 & #8 IA - [SDR KCSA202405291067](https://openairdocs.org/sdr/KCSA202405291067.md): Pressure Deck · cracked · May 29, 2024 · N766CK · Boeing 747481F · Fuselage Main, Structure > MAIN DECK L/H CANTED PRESSURE DECK COMPOSITE CLOSE-OUT PANEL CRACKED STA 1240 LBL 82 - [SDR KCSA202405231066](https://openairdocs.org/sdr/KCSA202405231066.md): Stiffener · cracked · May 23, 2024 · N766CK · Boeing 747481F · Fuselage Miscellaneous Structure > FWD CARGO PIT STIFFNER BELOW FRAME UPPER CHORD CRACKED STA 560 RBL 58 - [SDR KCSA202405231065](https://openairdocs.org/sdr/KCSA202405231065.md): Pressure Deck · cracked · May 23, 2024 · N766CK · Boeing 747481F · Fuselage Main, Structure > CRACK ON CANTED PRESSURE DECK STA 1240 LBL 77 - [SDR KCSA202405211064](https://openairdocs.org/sdr/KCSA202405211064.md): Trunnion · corroded · May 21, 2024 · N766CK · Boeing 747481F · Fuselage, Landing Gear Attach Fittings > R/H BODY LANDING GEAR I/B TRUNNION CAP HAS EVIDENCE OF CORROSION - [SDR KCSA202405211063](https://openairdocs.org/sdr/KCSA202405211063.md): Trunnion · corroded · May 21, 2024 · N766CK · Boeing 747481F · Fuselage, Landing Gear Attach Fittings > L/H BODY LANDING GEAR I/B TRUNNION CAP HAS CORROSION ON THE SPOT FACE - [SDR KCSA202405171062](https://openairdocs.org/sdr/KCSA202405171062.md): Frame Angle · cracked · May 17, 2024 · N766CK · Boeing 747481F · Fuselage Main, Frame > CRACKED FRAME ATTACH ANGLE ON L/H CREASE BEAM AT BS 960 STRINGER 7 - [SDR KCSA202405171061](https://openairdocs.org/sdr/KCSA202405171061.md): Pressure Deck · cracked · May 17, 2024 · N766CK · Boeing 747481F · Fuselage Main, Structure > MAIN DECK R/H CANTED PRESSURE DECK COMPOSITE CLOSE OUT PANEL CRACKED STA 1240 RBL 82 - [SDR KCSA202405171060](https://openairdocs.org/sdr/KCSA202405171060.md): Fitting · cracked · May 17, 2024 · N766CK · Boeing 747481F · Fuselage Miscellaneous Structure > STA 1000 FRONT SPAR INTERCOSTAL LUG FITTING AT RBL 11.33 CRACKED - [SDR KCSA202405171059](https://openairdocs.org/sdr/KCSA202405171059.md): Fitting · cracked · May 17, 2024 · N766CK · Boeing 747481F · Fuselage Miscellaneous Structure > STA 1000 FRONT SPAR INTERCOSTAL LUG FITTING AT LBL 11.33 CRACKED - [SDR KCSA202405161058](https://openairdocs.org/sdr/KCSA202405161058.md): Hinge Bracket · cracked · May 16, 2024 · N766CK · Boeing 747481F · Fuselage, Door Hinge > LOWER FWD CARGO DOOR AFT DOOR HINGE BRACKET HAS EVIDENCE OF A CRACK. - [SDR KCSA202405161057](https://openairdocs.org/sdr/KCSA202405161057.md): Hinge Bracket · cracked · May 16, 2024 · N766CK · Boeing 747481F · Fuselage, Door Hinge > LOWER FWD CARGO DOOR FWD DOOR HINGE BRACKET HAS EVIDENCE OF A CRACK. - [SDR KCSA20240223209](https://openairdocs.org/sdr/KCSA20240223209.md): Smoke Detector · unknown · Feb 22, 2024 · N767CK · Boeing 747481F · Smoke Detection > FIRE MAIN DECK MIDDLE. REMOVED AND REPLACED SMOKE SENSOR ZONE 9 LOOP A IN ACCORDANCE WITH B747 AMM 26-14-01 OPERATIONS TEST GOOD AT THIS TIME. - [SDR KCSA20240123104](https://openairdocs.org/sdr/KCSA20240123104.md): Escape Reel · used · Jan 21, 2024 · N768CK · Boeing 747481F · Emergency Equipment > ESCAPE REEL # 6 EXTENDED. REMOVED AND REPLACED #6 ESCAPE REEL. ALL CHECKS GOOD IAW B747-400 AMM 25-61-01. ESCAPE REEL # 7 EXTENDED. REMOVED AND REPLACED #7 ESCAPE REEL. ALL CHECKS GOOD IAW B747-400 AMM 25-61-01. #7 OFF PART NUMBER: 379103D-23 OFF PART SERIAL - [SDR UIEA2023120200972](https://openairdocs.org/sdr/UIEA2023120200972.md): Seal · unknown · Dec 2, 2023 · N404KZ · Boeing 747481F · Engine Oil System (Airframe Furnished) > ENGINE 4 OIL QUANTITY 0% IN FLIGHT(OIL LEAKING AT IDG ENG #4. REMOVED THE IDG IAW AMM 24-11-01. REPLACED IDG CARBON SEAL ASSY IAW AMM 72-64-02-404-018-J00 REV 109. PERFORMED ENG #4 RUN UP TO 81% N2 FOR 16 MINUTES IAW AMM 71-00-00 REV 109, SATISFACTORY. NO O Next page: https://openairdocs.org/model/boeing-747-481f/reports.md?page=2 ## The whole list in SQL Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS: ```sql 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' WHERE aircraft_model_key = '747481F' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/model/boeing-747-481f/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.