# Service difficulty reports: N745CK A list on [N745CK](https://openairdocs.org/aircraft/N745CK.md). Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first. Page 1 of 2 · 84 reports - [SDR KCSA2026052229](https://openairdocs.org/sdr/KCSA2026052229.md): Switch · faulted · May 22, 2026 · N745CK · Boeing 747446 · Stabilizer Position Indicating > STAB TRIM 2, STAB TRIM 3, EMERGENCY DECLARED FOR STAB TRIM 2 & 3. REMOVED AND REPLACED CAPTAINS STAB MANUAL TRIM CTRL WHEEL SWITCH IAW AMM 27-41-11 AND WDM 27-41-11. OPS CHECKS GOOD. AUTOLAND UNIQUE GROUND TEST PASSED IAW AMM 22-10-00. THIS A/C REMAINS CAT I - [SDR KCSA2025102269](https://openairdocs.org/sdr/KCSA2025102269.md): Door · no discrepancy · Oct 22, 2025 · N745CK · Boeing 747446 · Fixed Inner Doors > DOOR U/D FLT LK. PERFORMED OPERATIONAL TEST IAW B747-400 AMM CHP 52-23-00. COULD NOT DUPLICATE SYS OPS CHECKS NORMAL. - [SDR KCSA2025101956](https://openairdocs.org/sdr/KCSA2025101956.md): Lock · warning message · Oct 19, 2025 · N745CK · Boeing 747446 · Door Warning System > DOOR UPPER DECK FLIGHT LOCK MESSAGE. BOTH DOORS FLIGHT LOCK ACTUATORS OPERATIONAL CHECKS NORMAL IAW B747-400 AMM 52-23-00. - [SDR KCSA2025101855](https://openairdocs.org/sdr/KCSA2025101855.md): Lock · faulted · Oct 18, 2025 · N745CK · Boeing 747446 · Fixed Inner Doors > DOOR UPPER DECK FLIGHT LOCK. PERFORMED BOTH SIDE FLIGHT LOCK ACTUATOR OPERATIONS CHECK. ALL WORKING GOOD AND BOTH SIDE SWITCH ARE WORKING GOOD. NO FAULT FOUND IAW B747-400 AMM 52-23-00 - [SDR KCSA2025101252](https://openairdocs.org/sdr/KCSA2025101252.md): Lock · inoperative · Oct 12, 2025 · N745CK · Boeing 747446 · Fixed Inner Doors > DOOR UPPER DECK FLIGHT LOCK. TROUBLESHOT PER FIM 52-71 TASK 823. PERFORMED OPERATIONS TEST IAW AMM 52-23-00. ALL CHECKS GOOD AT THIS TIME. - [SDR KCSA20251003950](https://openairdocs.org/sdr/KCSA20251003950.md): Actuator · failed · Sep 29, 2025 · N745CK · Boeing 747446 · Landing Gear Actuator > 100272867: RIGHT WING GEAR FAILED TO EXTEND WITH ALTERNATE GEAR EXTENSION, DECLARED EMERGENCY. REMOVED AND REPLACED WING GEAR ALTERNATE ELECTRIC ACTUATOR. OPERATIONAL CHECK GOOD. NO DEFECTS NOTED. NO FURTHER ACTION REQUIRED AT THIS TIME (JACKED AIRCRAFT PERF - [SDR KCSA2025100192950](https://openairdocs.org/sdr/KCSA2025100192950.md): Landing Gear · no deploy · Sep 29, 2025 · N745CK · Boeing 747446 · Landing Gear Retraction/Extension System > RIGHT WING GEAR FAILED TO EXTEND WITH ALTERNATE GEAR EXTENSION, DECLARED EMERGENCY. - [SDR KCSA202509161160](https://openairdocs.org/sdr/KCSA202509161160.md): Bulkhead · cracked · Sep 16, 2025 · N745CK · Boeing 747446 · Fuselage Main, Bulkhead > 1 FASTENER HOLE NOTED ON LOWER R/H STA 2598 BULKHEAD AFT INNER CHORD HAS CRACK INDICATION - [SDR KCSA202509161159](https://openairdocs.org/sdr/KCSA202509161159.md): Beam · corroded · Sep 16, 2025 · N745CK · Boeing 747446 · Wing Main, Frame Structure > LH WING TE FIXED TRAILING EDGE BEAM UPPER CHORD @ APPROX WBL 340 CORRODED - [SDR KCSA202509161158](https://openairdocs.org/sdr/KCSA202509161158.md): Tension Tie · cracked · Sep 16, 2025 · N745CK · Boeing 747446 · Fuselage Main, Structure > FOUND CRACK INDICATION IN FRAME AT TENSION TIE STA 1140 L/H - [SDR KCSA202509131157](https://openairdocs.org/sdr/KCSA202509131157.md): Reveal · cracked · Sep 13, 2025 · N745CK · Boeing 747446 · Fuselage Miscellaneous Structure > FOUND DOOR REVEAL TO BE CRACKED AS MARKED AT R2 DOOR BETWEEN STR 25 AND 24 - [SDR KCSA202509121156](https://openairdocs.org/sdr/KCSA202509121156.md): Reveal · cracked · Sep 12, 2025 · N745CK · Boeing 747446 · Fuselage Miscellaneous Structure > CRACK FOUND IN L-5 DOOR REVEAL AT PRESS TO RELEASE LEVER NEAR STA 2231 - [SDR KCSA202509121155](https://openairdocs.org/sdr/KCSA202509121155.md): Doubler · corroded · Sep 12, 2025 · N745CK · Boeing 747446 · Fuselage Main, Plate/Skin > SURFACE CORROSION ON EXTERNAL DOUBLER AT BS 410 BETWEEN STR 1L AND 2L. - [SDR KCSA202509121154](https://openairdocs.org/sdr/KCSA202509121154.md): Reveal · cracked · Sep 12, 2025 · N745CK · Boeing 747446 · Fuselage Miscellaneous Structure > CRACK FOUND IN L-5 DOOR REVEAL AT DOOR CUTOUT NEAR STA 2231 AND STRINGER S-25L - [SDR KCSA202509121153](https://openairdocs.org/sdr/KCSA202509121153.md): Tension Tie · cracked · Sep 12, 2025 · N745CK · Boeing 747446 · Fuselage Miscellaneous Structure > FOUND CRACK IN TENSION TIE AT STA 1180 R/H SIDE - [SDR KCSA202509121152](https://openairdocs.org/sdr/KCSA202509121152.md): Wire · damaged · Sep 12, 2025 · N745CK · Boeing 747446 · Light System Wiring > UPPER DECK EXIT SIGN AT STA 690-CENTER INOP - [SDR KCSA202509121151](https://openairdocs.org/sdr/KCSA202509121151.md): Light · inoperative · Sep 12, 2025 · N745CK · Boeing 747446 · Emergency Lighting > EMERGENCY LIGHT AT STA 587 INOPERATIVE. - [SDR KCSA202506241096](https://openairdocs.org/sdr/KCSA202506241096.md): Battery · inoperative · Jun 24, 2025 · N745CK · Boeing 747446 · Emergency Lighting > AFT SECTION OF EMERGENCY LIGHTS IN THE UPPER DECK ARE INOP - [SDR KCSA20250528428](https://openairdocs.org/sdr/KCSA20250528428.md): Warning Message · false activation · May 24, 2025 · N745CK · Boeing 747446 · Fixed Inner Doors > DOOR UPPER DECK FLIGHT LOCK CAUTION MESSAGE. BOTH UPPER DECK DOOR FLIGHT LOCK ACTUATORS OPERATIONS CHECK NORMAL IAW B747-400 AMM 52-23-00. - [SDR KCSA2025032811](https://openairdocs.org/sdr/KCSA2025032811.md): Actuator · faulted · Mar 28, 2025 · N745CK · Boeing 747446 · Fixed Inner Doors > DOOR UPPER DECK FLIGHT LOCK. PERFORMED B747-400 FIM 52-71 TASK 823 FLIGHT LOCK ACTUATOR TEST PASS. OK FOR CONTINUED SERVICE. - [SDR KCSA20250318406](https://openairdocs.org/sdr/KCSA20250318406.md): Warning System · multiple ind · Mar 14, 2025 · N745CK · Boeing 747446 · Central Warning > 100200133: DOOR UPPER DECK FLIGHT LOCK ENGINE INDICATING & CREW ALERTING SYSTEM. TROUBLESHOT IAW FAULT ISOLATION MANUAL 52-71 TASK 823 BOTH FLIGHT LOCK ACTUATORS OPERATIONS CHECKS NORMAL IAW AMM 52-23-00. - [SDR KCSA2025030201](https://openairdocs.org/sdr/KCSA2025030201.md): Lock · not reported · Mar 2, 2025 · N745CK · Boeing 747446 · Fixed Inner Doors > 100222285 - DOOR UPPER DECK FLIGHT LOCK. PERFORMED TEST IAW BOEING 747 AMM 52-23-00-715-097. OPERATIONAL CHECK GOOD. - [SDR KCSA202412311126](https://openairdocs.org/sdr/KCSA202412311126.md): Handle · stiff · Dec 31, 2024 · N745CK · Boeing 747446 · Emergency Equipment > RT UPPER DECK ESCAPE DOOR ARMING HANDLE REQUIRES EXCESSIVE FORCE TO ARM - [SDR KCSA2024072623](https://openairdocs.org/sdr/KCSA2024072623.md): Support Fitting · cracked · Jul 26, 2024 · N745CK · Boeing 747446 · Drag Control Actuator > POSSIBLE CRACK ON #7 SPOILER ACTUATOR AND HINGE SUPPORT FITTING. - [SDR KCSA202312071152](https://openairdocs.org/sdr/KCSA202312071152.md): Battery · failed · Dec 7, 2023 · N745CK · Boeing 747446 · Doors > RH UPPER DECK DOOR EMERGENCY BATTERY SWITCH TEST WILL NOT ILLUMINATE - [SDR KCSA202312071151](https://openairdocs.org/sdr/KCSA202312071151.md): Battery · failed · Dec 7, 2023 · N745CK · Boeing 747446 · Doors > L/H UPPER DECK DOOR EMERGENCY POWER PACK BATTERY FAILS - [SDR KCSA202311141147](https://openairdocs.org/sdr/KCSA202311141147.md): Fitting · cracked · Nov 16, 2023 · N745CK · Boeing 747446 · Fuselage Main, Structure > (FAA FINDING) R1 DOOR AFT LOWER STOP FITTING CRACKED - [SDR KCSA202311141146](https://openairdocs.org/sdr/KCSA202311141146.md): Fitting · cracked · Nov 16, 2023 · N745CK · Boeing 747446 · Fuselage Main, Structure > (FAA FINDING) L1 DOOR AFT LOWER STOP FITTING CRACKED - [SDR KCSA202311161145](https://openairdocs.org/sdr/KCSA202311161145.md): Web · cracked · Nov 16, 2023 · N745CK · Boeing 747446 · Fuselage Miscellaneous Structure > MAIN DECK FLOOR WEB IS CRACKED AT SIDE WALL STA 160 -180 RLB 60 - [SDR KCSA202311161144](https://openairdocs.org/sdr/KCSA202311161144.md): Web · cracked · Nov 16, 2023 · N745CK · Boeing 747446 · Fuselage Miscellaneous Structure > AREA INSIDE OF FUSELAGE FORWARD OF THE NOSE GEAR WHEEL WELL, MAIN CARGO DECK LOWER FLOOR HAS CRACK THRU LIGHTENING HOLE AT APPROX FS 145, RBL 20, AFT OF THE STA 140 BULKHEAD - [SDR KCSA202311161143](https://openairdocs.org/sdr/KCSA202311161143.md): Fitting · corroded · Nov 16, 2023 · N745CK · Boeing 747446 · Elevator Structure > RH OB ELEVATOR REACTION HINGE SUPPORT FITTING IS CORRODED - [SDR KCSA202311161141](https://openairdocs.org/sdr/KCSA202311161141.md): Web · cracked · Nov 16, 2023 · N745CK · Boeing 747446 · Fuselage Miscellaneous Structure > MAIN DECK FLOOR WEB IS CRACKED AT SIDE WALL STA 140 - 160 LBL 40 - [SDR KCSA202311081136](https://openairdocs.org/sdr/KCSA202311081136.md): Frame · bent · Nov 8, 2023 · N745CK · Boeing 747446 · Fuselage Main, Frame > FWD CARGO PIT LOWER LOBE FRAME INNER CHORD DAMAGED STA. 720, RBL 25 - [SDR KCSA202311081135](https://openairdocs.org/sdr/KCSA202311081135.md): Elevator · chafed · Nov 8, 2023 · N745CK · Boeing 747446 · Elevator Structure > LH OB ELEVATOR IB CLOSURE RIB IS CHAFFED - [SDR KCSA202311081134](https://openairdocs.org/sdr/KCSA202311081134.md): Web · damaged · Nov 8, 2023 · N745CK · Boeing 747446 · Vertical Stabilizer > DAMAGE FOUND AROUND LIGHTENING HOLE ON VERTICAL STAB L/E AT APPROX STA 220 - [SDR KCSA202311081133](https://openairdocs.org/sdr/KCSA202311081133.md): Power Supply · failed · Nov 8, 2023 · N745CK · Boeing 747446 · Emergency Lighting > EMERGENCY LIGHT POWER SUPPLY AT STA 550 U/D L/H FAILS DEEP CYCLE - [SDR KCSA202311081132](https://openairdocs.org/sdr/KCSA202311081132.md): Unknown · unknown · Nov 8, 2023 · N745CK · Boeing 747446 · Emergency Lighting > EMERGENCY LIGHT AT UPPER DECK STAIRS INOP - [SDR KCSA2023072232](https://openairdocs.org/sdr/KCSA2023072232.md): Actuator · unserviceable · Jul 22, 2023 · N745CK · Boeing 747446 · Fixed Inner Doors > DOOR UPPER DECK FLIGHT LOCK LEFT. TRANSFERRED TO DMI #100136758 IN ACCORDANCE WITH KA MEL 52-23-3-2 CATEGORY C PLACARDS INSTALLED M PROCEDURE COMPLIED WITH ACTUATOR NOT REMOVED. AS PER LOG PAGE 100136761, M PROCEDURE COMPLIED WITH IAW MEL 52-23-3-2 DMI 1001367 - [SDR KCSA202307101073](https://openairdocs.org/sdr/KCSA202307101073.md): Light · inoperative · Jul 10, 2023 · N745CK · Boeing 747446 · Emergency Lighting > EMERGENCY LIGHT AFT OF LAV INOP. - [SDR KCSA2022080417](https://openairdocs.org/sdr/KCSA2022080417.md): Battery Pack · inoperative · Aug 4, 2022 · N745CK · Boeing 747446 · Emergency Exits > RIGHT HAND UPPER DECK DOOR BATTERY FAILED OPERATIONS CHECK. REMOVED AND REPLACED UPPER DECK EMERGENCY ESCAPE DOOR BATTERY IN ACCORDANCE WITH B747 AMM 52-23-14 ALL CHECKS GOOD AT THIS TIME. - [SDR KCSA202110131116](https://openairdocs.org/sdr/KCSA202110131116.md): Frame · worn · Oct 13, 2021 · N745CK · Boeing 747446 · Fuselage Main, Frame > FRAME AT L/H TENSION TIE STA 1120 HAS 2 EA HOLES THAT EXCEED ALLOWABLE LIMITS AS NOTED IN STEP 32 OF WO 745016239 - [SDR KCSA202110131115](https://openairdocs.org/sdr/KCSA202110131115.md): Tension Tie · worn · Oct 13, 2021 · N745CK · Boeing 747446 · Fuselage Main, Structure > L/H TENSION TIE AT FRAME 1120 HAS 2 EA HOLES THAT EXCEED ALLOWABLE LIMITS AS NOTED IN STEP 32 OF WO 745016239 - [SDR KCSA202110131114](https://openairdocs.org/sdr/KCSA202110131114.md): Tension Tie · severed · Oct 13, 2021 · N745CK · Boeing 747446 · Fuselage Main, Structure > LH STA. 1160 FWD TENSION TIE SEVERED - [SDR KCSA202110131113](https://openairdocs.org/sdr/KCSA202110131113.md): Frame · cracked · Oct 13, 2021 · N745CK · Boeing 747446 · Fuselage Main, Frame > TENSION TIE BS 1180 L/H SIDE ONE HOLE CRACKED IN FRAME MARKED - [SDR KCSA202110131112](https://openairdocs.org/sdr/KCSA202110131112.md): Tension Tie · cracked · Oct 13, 2021 · N745CK · Boeing 747446 · Fuselage Main, Structure > TENSION TIE BS 1180 L/H SIDE ONE HOLE CRACKED MARKED - [SDR KCSA202109221109](https://openairdocs.org/sdr/KCSA202109221109.md): Web · cracked · Sep 22, 2021 · N745CK · Boeing 747446 · Fuselage Main, Structure > L\H CREASE BEAM ATTACH WEB APPROX STA 1259 HAS CRACK - [SDR KCSA202109221108](https://openairdocs.org/sdr/KCSA202109221108.md): Web · cracked · Sep 22, 2021 · N745CK · Boeing 747446 · Fuselage Main, Structure > R\H CREASE BEAM ATTACH WEB APPROX STA 1259 HAS CRACK - [SDR KCSA202109221107](https://openairdocs.org/sdr/KCSA202109221107.md): Intercostal · cracked · Sep 22, 2021 · N745CK · Boeing 747446 · Fuselage Structure (General) > APPROX 6.5" CRACK ON VERTICAL STABILIZER SKIN TO FUSELAGE INTERCOSTAL AT FWD EDGE OF AFT VERT STAB BLADE SEAL APPROX STA 2521 RIGHT HAND SIDE SKIN OF STAB IAW SB 747-532651 R1 - [SDR KCSA202102101006](https://openairdocs.org/sdr/KCSA202102101006.md): Light · inoperative · Feb 10, 2021 · N745CK · Boeing 747446 · Emergency Lighting > GALLEY CEILING EMERGENCY LIGHT INOP - [SDR KCSA202102101005](https://openairdocs.org/sdr/KCSA202102101005.md): Light · inoperative · Feb 10, 2021 · N745CK · Boeing 747446 · Emergency Lighting > MAIN DECK EMERGENCY LIGHT INOP Next page: https://openairdocs.org/aircraft/N745CK/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 n_number = 'N745CK' AND registry_match = 'registration' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/aircraft/N745CK/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.