# Service difficulty reports: Boeing 737-3Y0 A list on [Boeing 737-3Y0](https://openairdocs.org/model/boeing-737-3y0.md). Newest first. General aviation reporting is voluntary. Page 1 of 61 · 3,007 reports - [SDR K11A2026090700391](https://openairdocs.org/sdr/K11A2026090700391.md): Door · unsecure · Sep 7, 2026 · N336CK · Boeing 7373Y0 · Passenger/Crew Doors > THE CABIN DIDN’T PRESSURIZE IN ALL MODES OF PRESSURIZATION PANEL. PERFORMED PRESSURIZATION WITH APU IAW AMM 21-31-00, OPS CHECK GOOD AT THIS TIME NO DEFECTS NOTED. ON WALKAROUND FOUND L2 DOOR PARTIALLY OPEN, DOOR WILL NOT LATCH PROPERLY. PERFORMED OPERATIONA - [SDR K11A2026030200371](https://openairdocs.org/sdr/K11A2026030200371.md): Generator · faulted · Mar 2, 2026 · N307GT · Boeing 7373Y0 · AC Generator-Alternator > NR 2 GENERATOR FAILED AFTER TAKEOFF AT AROUND 6000 FEET. GEN BUS OFF LIGHT ILLUMINATED, PERFORMED GEN BUS OFF LIGHT QRH. AFTER GENERATOR WAS RE ENGAGED GEN BUS OFF LIGHT ILLUMINATED AGAIN, FREQUENCY WAS ZERO VOLTS WERE NORMAL. TRANSFERRED TO DMI # 33700047 CA - [SDR K11A2026021700368](https://openairdocs.org/sdr/K11A2026021700368.md): Switch · malfunctioned · Feb 17, 2026 · N337CK · Boeing 7373Y0 · Stabilizer Control System > TRIM INOPERATIVE IN NOSE DOWN POSITION, FUNCTIONED PROPERLY AFTER FLIGHT DIRECTORS WERE RECYCLED. PERFORMED OPS CHECK OF STAB TRIM CONTROL SWITCH IAW AMM 27-41-97, OPS CHECK GOOD. NO DEFECTS NOTE. - [SDR K11A2025123100365](https://openairdocs.org/sdr/K11A2025123100365.md): Seat · faulted · Dec 31, 2025 · N336CK · Boeing 7373Y0 · Flight Compartment Equipment > REJECTED TAKEOFF AT 115 KNOTS. THE CAPTAINS SEAT UNLOCKED AND SLAMMED TO THE AFT. ADJUSTED CAPTAINS SEAT IAW B737 AMM 25-11-11, OPS CHECK GOOD NO DEFECTS NOTED. PERFORMED CONDITIONAL INSPECTION FOR HIGH SPEED STOPPAGE ONCE BRAKES COOLED TO TOUCH IAW B737 AMM - [SDR K11A2025112500360](https://openairdocs.org/sdr/K11A2025112500360.md): Warning Light · false activation · Nov 25, 2025 · N335CK · Boeing 7373Y0 · Leading Edge Slat Position Indicating System > LEADING EDGE FLAPS TRANSIT LIGHT WOULD NOT EXTINGUISH IN FLIGHT. PERFORMED OPS CHECK OF LEADING EDGE FLAP AND SLAT POSITION INDICATING SYSTEM IAW AMM 27-88-00-215-013. OPS CHECK GOOD AT THIS TIME. FAULT CLEARED AIRCRAFT OK FOR SERVICE. - [SDR K11A2025102400357](https://openairdocs.org/sdr/K11A2025102400357.md): Door · not closed · Oct 24, 2025 · N337CK · Boeing 7373Y0 · Electrical/Electronic Compartment Doors > EQUIPMENT DOOR LIGHT ILLUMINATED ON TAKE OFF. FOUND EQUIPMENT DOOR NOT FULLY CLOSED. PERFORMED OPERATIONAL CHECK OF DOOR AND DOOR INDICATING SYSTEM IAW B737 AMM 52-48-41, OPS CHECK GOOD IAW B737 AMM 52-71-42 - [SDR K11A2025071900327](https://openairdocs.org/sdr/K11A2025071900327.md): Fire Warning · false activation · Jul 19, 2025 · N335CK · Boeing 7373Y0 · Fire Detection > APU FIRE INDICATION IN FLIGHT, FOLLOWED QRH PROCEDURE BLEW FIRE BOTTLE, FIRE LIGHT EXTINGUISHED PER QRH CHECK LIGHT CONTINUED TO AIRPORT. PERFORMED APU COMPARTMENT COMPONENT AND STRUCTURE INSPECTION IAW B737-300 AMM 05-41-07, NO DAMAGE, NO FIRE INDICATION NOT - [SDR K11A2025071700235](https://openairdocs.org/sdr/K11A2025071700235.md): Control Cable · out of adjust · Jul 17, 2025 · N336CK · Boeing 7373Y0 · Landing Gear Retraction/Extension System > LANDING GEAR LEVER WOULD NOT GO UP WHILE ON TAKEOFF DURING RETRACTION. ADJUSTED MAIN GEAR AIR / GROUND CABLE IAW AMM 32-21-11. PERFORMED OPS CHECK IAW AMM 32-21-11. PERFORMED GEAR SWING SYSTEM OPS CHECK NORMAL. - [SDR K11A2025042800316](https://openairdocs.org/sdr/K11A2025042800316.md): Controller · inoperative · Apr 28, 2025 · N337CK · Boeing 7373Y0 · Cabin Pressure Controller > AT FL 330 CABIN ALT WARNING HORN SOUNDED. IMMEDIATELY DESCENDED TO FL 230. REQUESTED LOWER, REGAINED CONTROL PASSING FL 180. L1 DOOR SEALS, OUTFLOW VALVE, WATER SEPARATOR CLAMP, MAIN CARGO DOOR SEAL, CLEANING AND SEALING OF FUSELAGE BILGE DRAINS, ALSO REF KAI - [SDR K11A2025040200308](https://openairdocs.org/sdr/K11A2025040200308.md): Warning Horn · false activation · Apr 2, 2025 · N337CK · Boeing 7373Y0 · Cabin Pressure Control System > CABIN ALTITUDE LIGHT AND CABIN ALT HORN SOUNDED @ CRUSE FL320. EMERGENCY PROCEDURE DECLARED AN EMERGENCY DUE TO A PRESSURIZATION ISSUE. ACFT CONTINUED TO OMA, LANDED, AND TAXIED TO PARKING WITHOUT FURTHER INCIDENT. PERFORMED CABIN PRESSURIZATION CONTROL SYSTE - [SDR K11A2025040200309](https://openairdocs.org/sdr/K11A2025040200309.md): Oxygen Mask · inoperative · Apr 2, 2025 · N337CK · Boeing 7373Y0 · Crew Oxygen System > FO SIDE OXYGEN MASK BECAME INOPERATIVE AFTER 2 MINUTES OF USE. EMERGENCY PROCEDURE (DESCRIBE UNSCHEDULED LANDING, EMER. DESCENT, ETC) TEXT: FO SWITCHED TO AN ADDITIONAL MASK IN THE COCKPIT. REATTACHED FO’S OXYGEN MASK HOSE IAW B737 AMM 35-12-86. PERFORMED OP - [SDR K11A2025032000304](https://openairdocs.org/sdr/K11A2025032000304.md): Sensor · inoperative · Mar 20, 2025 · N337CK · Boeing 7373Y0 · Cabin Cooling System > PROBLEM DESCRIPTION: LEFT PACK TRIP OFF IN FLIGHT. UNABLE TO HOLD PRESSURIZATION AT FL 320, FL 270, FL 240 OR FL 210 UNTIL FL140. THERE WAS SOME PRESSURIZATION, AND THE CABIN ALTITUDE FINALLY WENT DOWN FROM 10000 FEET. REMOVED AND REPLACED 250 DEG TEMP SENSOR - [SDR K11A2024102500291](https://openairdocs.org/sdr/K11A2024102500291.md): Power Supply · inoperative · Oct 25, 2024 · N335CK · Boeing 7373Y0 · Emergency Lighting > EMERGENCY LIGHTING INOP. REMOVED AND REPLACED L/H & R/H EMERGENCY LIGHTING POWER SUPPLIES IAW B737 AMM 33-51-51, OPS CHECK GOOD NO DEFECTS NOTED - [SDR K11A2024080600274](https://openairdocs.org/sdr/K11A2024080600274.md): Pushrod · out of alignment · Aug 6, 2024 · N336CK · Boeing 7373Y0 · Leading Edge Devices > ON APPROACH THE AIRCRAFT EXPERIENCED WAKE TURBULENCE AND PERFORMED A GO AROUND AND LANDED SAFELY. ON POST FLIGHT WALK AROUND FOUND #5 & #6 LEADING EDGE SLATS MISALIGNED. PERFORMED PHASE 1 AND 2 OVERSPEED CONDITIONAL INSPECTION IAW B737 AMM 5-51-41 REF CJI WOR - [SDR K11A2024082000279](https://openairdocs.org/sdr/K11A2024082000279.md): Frame · cracked · Jun 27, 2024 · N337CK · Boeing 7373Y0 · Fuselage Main, Frame > 2 EA HOLES HAVE CRACK INDICATIONS ON FRAME STA 500A IN FWD PIT RBL 4 - [SDR K11A2024080700273](https://openairdocs.org/sdr/K11A2024080700273.md): Frame · corroded · Jun 26, 2024 · N337CK · Boeing 7373Y0 · Fuselage Main, Frame > CORROSION ON LWR LEG OF FRAME IN FWD PIT STA 500 LBL 3. - [SDR K11A2024072200272](https://openairdocs.org/sdr/K11A2024072200272.md): Stub Frame · cracked · Jun 23, 2024 · N337CK · Boeing 7373Y0 · Fuselage Miscellaneous Structure > FOUND STUB FRAME AT STA 294.5 WL 208.1 TO BE CRACKED. - [SDR K11A2024080900275](https://openairdocs.org/sdr/K11A2024080900275.md): Door Frame · cracked · Jun 22, 2024 · N337CK · Boeing 7373Y0 · Fuselage Main, Structure > R1 DOOR CUTOUT FRAME NEAR UPPER HINGE CRACKED. - [SDR K11A2024062800266](https://openairdocs.org/sdr/K11A2024062800266.md): Seat Track · damaged · Jun 20, 2024 · N337CK · Boeing 7373Y0 · Fuselage, Seat/Cargo Attach Fittings > MAIN DECK APROX STA 975 RBL 25 SEAT TRACK DAMAGED. - [SDR K11A2024062800267](https://openairdocs.org/sdr/K11A2024062800267.md): Web · damaged · Jun 13, 2024 · N337CK · Boeing 7373Y0 · Fuselage Miscellaneous Structure > MAIN DECK FLOOR WEB DAMAGED AT APROX STA 373 RBL 54. - [SDR K11A2024070300268](https://openairdocs.org/sdr/K11A2024070300268.md): Door Frame · cracked · Jun 12, 2024 · N337CK · Boeing 7373Y0 · Fuselage Main, Structure > L/H FUSELAGE UPPER AFT ENTRY DOOR FRAME APROX. STA 957 NEAR STR 4L EVIDENCE OF CRACK AROUND FASTENER - [SDR K11A2024080900276](https://openairdocs.org/sdr/K11A2024080900276.md): Skin · corroded · Jun 10, 2024 · N337CK · Boeing 7373Y0 · Fuselage Main, Plate/Skin > SUSPECTED CORROSION ON #2 VHF ANTENNA AROUND MOUNTING AREA JUST OUTSIDE OF SEALANT PERIMETER. - [SDR K11A2024052200262](https://openairdocs.org/sdr/K11A2024052200262.md): Battery Pack · no test · May 21, 2024 · N337CK · Boeing 7373Y0 · Emergency Lighting > DURING T/S FOUND EMERGENCY LIGHT ON RH SIDE OF GALLEY TO BE INOPERABLE. CORRECTIVE ACTION & OTHER PERTINENT INFORMATION: REMOVE AND REPLACE LIGHT BATTERY IAW SPECIAL FREIGHTER MAINTENANCE MANUAL SUPPLEMENT 33-51-51. OPS CHECK GOOD NO DEFECTS NOTED AT THIS TIME - [SDR K11A2023121800247](https://openairdocs.org/sdr/K11A2023121800247.md): Unknown · unknown · Dec 18, 2023 · N336CK · Boeing 7373Y0 · Landing Gear Selector > LANDING GEAR LEVER STOPPED IN OFF POSITION WHEN TRYING TO GET GEAR UP AFTER TAKE OFF - [SDR K11A2023082200227](https://openairdocs.org/sdr/K11A2023082200227.md): Unknown · unknown · Aug 22, 2023 · N336CK · Boeing 7373Y0 · Central Warning > ABORTED TAKEOFF DUE TO TAKEOFF WARNING SOUNDED DURING TAKEOFF - [SDR K11A2023062800215](https://openairdocs.org/sdr/K11A2023062800215.md): Unknown · unknown · Jun 28, 2023 · N336CK · Boeing 7373Y0 · Detection System > APU FIRE LIGHT ILLUMINATED ON START, THE FIRE T HANDLE WAS PULLED AND DISCHARGED. - [SDR K11A2023053100209](https://openairdocs.org/sdr/K11A2023053100209.md): Unknown · unknown · May 31, 2023 · N335CK · Boeing 7373Y0 · Doors > FRD ENTRY DOOR LIGHT ON TAKEOFF ROLL 10KTS REJECTED TAKEOFF AND RESCUED DOOR. - [SDR K11A2022092400165](https://openairdocs.org/sdr/K11A2022092400165.md): Engine · surges · Sep 24, 2022 · N336CK · Boeing 7373Y0 · Engine (Turbine/Turboprop) > NR 1 ENGINE SURGE DURING TAKEOFF. R&R NR 1 ENGINE IAW AMM 73-21-04 PERFORMED PLA GEN ADJ / TEST IAW AMM 71-00-00, PERFORMED VSV DYNAMIC RIG IAW AMM 75-31-00, PERFORMED TEST 1,3 & 6 IAW AMM 71-00-00 ALL CHECKS GOOD NO DEFECTS NOTED. - [SDR K11A2022120600170](https://openairdocs.org/sdr/K11A2022120600170.md): Frame · cracked · Sep 8, 2022 · N331CK · Boeing 7373Y0 · Fuselage Main, Frame > FUSELAGE FLOOR STRUCTURE - FRAME @ STA 727 A CRACKED JUST ABOVE STRINGER 17L - [SDR K11A2022120600169](https://openairdocs.org/sdr/K11A2022120600169.md): Floorbeam · corroded · Sep 8, 2022 · N331CK · Boeing 7373Y0 · Fuselage Main, Floor Beam > FLOOR BEAM @ STA 344 LBL 44" (APPROX 6" IN LENGTH) HAS EVIDENCE OF CORROSION UNDERNEATH FLANGE AND ATTACHMENT HOLES. - [SDR K11A2022090500157](https://openairdocs.org/sdr/K11A2022090500157.md): None · cracked · Sep 5, 2022 · N335CK · Boeing 7373Y0 · Window/Windshield System > PROBLEM DESCRIPTION: FIRST OFFICERS WINDSHIELD CRACKED IN FLIGHT. CORRECTIVE ACTION & OTHER PERTINENT INFORMATION: R&R R1 WINDOW IAW B737 AMM 56-11-11 OPS CHECK GOOD NO DEFECTS NOTED AT THIS TIME - [SDR K11A2022081200154](https://openairdocs.org/sdr/K11A2022081200154.md): None · none · Aug 12, 2022 · N336CK · Boeing 7373Y0 · Altimeter, Barometric/Encoder > ABOVE 10,000 FT. THE DIFFERENCE BETWEEN THE CAPTAIN AND FIRST OFFICERS ALTIMETER IS APPROX. 500 FT., CORRECTIVE ACTION & OTHER PERTINENT INFORMATION: PITOT PROBE INSPECTION PASSED IAW B737 AMM 34-11-11, PITOT STATIC HIGH LEVEL LEAK CHECK PASSED IAW B737 AMM 34 - [SDR K11A2022062800134](https://openairdocs.org/sdr/K11A2022062800134.md): Window · cracked · Jun 28, 2022 · N331CK · Boeing 7373Y0 · Flight Compartment Windows > L1 WINDOW HEAT CAUSED DELAMINATION RESULTING IN CRACKS. R&R L1 WINDOW IAW B737 AMM 56-11-11 NO DEFECTS NOTED. PER COMPANY REQUEST R&R L1 WINDOW HEAT CONTROLLER IAW B737 AMM 30-41-11 OPS CHECK GOOD - [SDR K11A2022060100129](https://openairdocs.org/sdr/K11A2022060100129.md): Stringer · cracked · Mar 18, 2022 · N336CK · Boeing 7373Y0 · Fuselage Structure (General) > FRAME AT STA 360 STR 20R HAS A CRACK IN THE WEB AROUND INSULATION STUD HOLE ON FWD SIDE - [SDR K11A2022060100128](https://openairdocs.org/sdr/K11A2022060100128.md): Door Frame · cracked · Mar 16, 2022 · N336CK · Boeing 7373Y0 · Fuselage Main, Structure > FWD CARGO DOOR FRAME STA 492 DTR-24R IS CRACKED AT UPPER INBD HOLE. ENDS OF CRACK ARE MARKED. - [SDR K11A2022021500112](https://openairdocs.org/sdr/K11A2022021500112.md): None · none · Feb 15, 2022 · N335CK · Boeing 7373Y0 · Electrical Power System > PROBLEM DESCRIPTION: GEN BUS SEEMS NOT TO BE POWERED. CORRECTIVE ACTION & OTHER PERTINENT INFORMATION: FOUND #1 DC BUS C/B POPPED RESET #1 DC BUS C/B, OPS CHECK GOOD IAW B737 AMM 20-60-05 AND 24-31-00, 21-21-00 - [SDR K11A2022121800174](https://openairdocs.org/sdr/K11A2022121800174.md): Door · not closed · Dec 18, 2021 · N336CK · Boeing 7373Y0 · Cabin Pressure Control System > CABIN ALTITUDE UNCONTROLLABLE WITH AUTO, STANDBY OR MANUAL SYSTEMS. CORRECTIVE ACTION & OTHER PERTINENT INFORMATION: FOUND AFT ENTRY DOOR NOT CLOSED COMPLETELY CLOSED AFT ENTRY DOOR IAW B737 AMM 52-73-00, PERFORMED PRESSURIZATION OPS TEST IAW B737 AMM 21-31-00 - [SDR K11A2021102200082](https://openairdocs.org/sdr/K11A2021102200082.md): Battery Pack · failed · Oct 22, 2021 · N335CK · Boeing 7373Y0 · Emergency Lighting > PROBLEM DESCRIPTION: DURING BRIDGING INSPECTION FOUND L/H EMERGENCY LIGHT INOP, CORRECTIVE ACTION & OTHER PERTINENT INFORMATION: REMOVED AND INSTALLED SERVICEABLE L/H EMERGENCY BATTERY PACK IAW B737 AMM 33-51-51 OPS CHECK PAS NO DEFECTS NOTED - [SDR K11A2020043033101](https://openairdocs.org/sdr/K11A2020043033101.md): Support Fitting · cracked · Apr 22, 2020 · N331CK · Boeing 7373Y0 · Wing, Landing Gear Attach Fittings > L/H MLG AFT SUPPORT FITTING CRACKED - [SDR K11A2020042833101](https://openairdocs.org/sdr/K11A2020042833101.md): Skin · corroded · Feb 21, 2020 · N331CK · Boeing 7373Y0 · Wing, Plate/Skin > LEFT WING SKIN CORROSION WBL 15 - [SDR K11A2020051102](https://openairdocs.org/sdr/K11A2020051102.md): Spar · cracked · Jan 29, 2020 · N331CK · Boeing 7373Y0 · Wing Spar > L/H REAR SPAR HAS CRACK IN 1EA FASTENER HOLE AT RSS 224 - [SDR K11A2020022633102](https://openairdocs.org/sdr/K11A2020022633102.md): Skin · cracked · Jan 24, 2020 · N331CK · Boeing 7373Y0 · Wing, Plate/Skin > CRACK NOTED ON UPPER SKIN T/E FASTENER HOLE @ RSS 270 ON R/H WING - [SDR K11A2020051101](https://openairdocs.org/sdr/K11A2020051101.md): Spar · cracked · Jan 5, 2020 · N331CK · Boeing 7373Y0 · Wing Spar > R/H REAR SPAR UPPER CHORD CRACKED, R&R REAR CHORD BETWEEN RSS 1.5.24 TO RSS 285 - [SDR K11A2020022633101](https://openairdocs.org/sdr/K11A2020022633101.md): Support Fitting · cracked · Jan 3, 2020 · N331CK · Boeing 7373Y0 · Wing, Landing Gear Attach Fittings > R/H MLG SUPPORT FITTING CRACKED - [SDR K11A2019080763101](https://openairdocs.org/sdr/K11A2019080763101.md): Generator · malfunctioned · Aug 6, 2019 · N331CK · Boeing 7373Y0 · AC Generation System > ON TAKEOFF ROLL NR 1 GENERATOR WENT OFF LINE, REJECTED TAKEOFF. R&R THE NR 1 GENERATOR, NR 1 CSD, IAW AMM 24-21-11, AND 24-11-11. OPS AND LEAK CHECK GOOD IAW AMM 24-11-11 AND AMM 71-00. - [SDR K11A2018070533101](https://openairdocs.org/sdr/K11A2018070533101.md): Door · obstructed · Jul 3, 2018 · N331CK · Boeing 7373Y0 · Cargo/Baggage Doors > AT FL 350 THE CABIN ALTITUDE HORN SOUNDED, THE CABIN CLIMBED ABOVE 10,000 FT AND CONTINUED TO CLIMB WITH THE OUTFLOW VALVE CLOSED. FOUND DEBRIS IN FORWARD CARGO PIT DOOR, REMOVED DEBRIS, PERFORMED PRESSURIZATION CONTROL SYSTEM, OP'S CHECK GOOD IAW AMM 21-31-00 - [SDR K11A2018040931041](https://openairdocs.org/sdr/K11A2018040931041.md): Frame · cracked · Jan 28, 2018 · N331CK · Boeing 7373Y0 · Fuselage Main, Frame > CRACKED FRAME, BS 312 LT ABOVE THE L1 DOOR. - [SDR K11A2018040931040](https://openairdocs.org/sdr/K11A2018040931040.md): Frame · cracked · Jan 27, 2018 · N331CK · Boeing 7373Y0 · Fuselage Main, Frame > CRACKED FRAME, BS 312 LT ABOVE THE L1 DOOR - [SDR K11A2018040931039](https://openairdocs.org/sdr/K11A2018040931039.md): Light · inoperative · Jan 18, 2018 · N331CK · Boeing 7373Y0 · Emergency Lighting > R1 DOOR EMERGENCY EXIT LIGHT INOPERATIVE. - [SDR K11A2018040931038](https://openairdocs.org/sdr/K11A2018040931038.md): Shear Tie · damaged · Dec 26, 2017 · N331CK · Boeing 7373Y0 · Fuselage Internal Mounting Structure > SHEAR TIE BS 986, 27L & 27R HAS DAMAGED FASTENER HOLES Next page: https://openairdocs.org/model/boeing-737-3y0/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 = '7373Y0' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/model/boeing-737-3y0/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.