Boeing 737-400

Service difficulty reports · 470

Newest first. 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'
  WHERE aircraft_model_key = '737400'
  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 NACA2024021600001Pitot Head · failedFAILURE OF AIRSPEED INDICATORS. REPLACED CAPT L UPPER PITOT-STATIC PROBE IAW AMM 34-11-11. LH AND RH PITOT STATIC LEAK CHECK GOOD. FLUSHED DEBRIS OUT OF CAPT AND FO PITOT-STATIC TUBES PER AMM 34-11-01. UNIT IS UNKNOWN TO TRAX.Feb 16, 2024 · N405K · Boeing 737400 · Pitot/Static SystemSDR NACA2023102700001Unknown · unknownDURING NRC: CA1502/253 AFTER CORROSION REMOVED CHK OVER LIMIT. REMOVED DAMAGED SKIN AT #3 SLAT T/E WEDGE UPPER SURFACE BETWEEN SS 36.5 AND SS 38.3. MADE THE REPAIR FILLER AND DOUBLER, INSTALLED REPAIRED PARTS AND PERFORMED PERMANENT 250 DEGREE CURE METAL BONDOct 27, 2023 · N401YK · Boeing 737400 · Leading Edge DevicesSDR NACA2023102100003Unknown · unknownCABIN WINDOW FRAME GOT CORROSION ON STA 727G+10(L30). BS727+5, S-11L+15". REPAIRED PER SRM 56-20-02 AND EO 737-56-007Oct 21, 2023 · N401YK · Boeing 737400 · Fuselage Main, StructureSDR NACA2023102100002Unknown · unknownCABIN WINDOW FRAME GOT CORROSION ON STA 727F+10(L29).1.BS727+6,S-11L+8" 2.BS727+11,S-11L+16". REPAIRED PER SRM 56-20-02Oct 21, 2023 · N401YK · Boeing 737400 · Fuselage Main, StructureSDR NACA2023102100001Unknown · unknownCABIN WINDOW FRAME CORROSION ON STA 727C +10 (L26), REPAIRED PER SRM 56-20-02Oct 21, 2023 · N401YK · Boeing 737400 · Fuselage Main, StructureSDR NACA2023102000001Light · failedOPERATIONAL TEST FOUND EMERGENCY LIGHT FAILURE. REPLACE EMERGENCY LIGHT IAW AMM 33-51-51-962-016. OPS TEST NORMAL.Oct 20, 2023 · N401YK · Boeing 737400 · Emergency LightingSDR K11A2023060700211Keelbeam · corrodedCORROSION ON LWR KEEL BEAM WEB APPROX STA 606 RBL 6.May 11, 2023 · N406CK · Boeing 737400 · Fuselage Main, KeelSDR 2022F00105Tee Angle · corrodedAFT CARGO FLOOR PANEL STA 727-STA 727D SHOWS AMUMINUM BUT-JOINT STRIP PRIMER & PAINT DETERIORATED. NRC495Feb 10, 2022 · N401YK · Boeing 737400 · Fuselage Structure (General)SDR 2022F00078Lens · crackedFWD ENTRY DOOR AREA PLASTIC EXIT EMERGENCY EXIT SIGN BROKEN AT LOWER FWD CORNER.Feb 9, 2022 · N401YK · Boeing 737400 · Emergency LightingSDR K11A2021102100108Keelbeam · crackedLH KEEL BEAM UPPER CHORD CRACKEDOct 21, 2021 · N311GT · Boeing 737400 · Wing StructureSDR I5EA2021052600005Battery Pack · no testAFT LH EMERGENCY BATTERY PACK IS BAD. REMOVED AND REPLACED AFT LH BATTERY PACK ASSY IAW B737-400 AMM 33-51-51 OPS CHECK GOOD.May 26, 2021 · N803TJ · Boeing 737400 · Emergency LightingSDR K11A2021020200041Power Supply · no testDURING MAINTENANCE FOUND LEFT HAND EMERGENCY LIGHT INOP. CORRECTIVE ACTION & OTHER PERTINENT INFORMATION: FOUND SHORTED WIRE & CORRECTED AT R1 DOOR IAW SWPM 20-30-12, R&R BATTERY PACK IAW B737 AMM 33-51-51, OPS CHECK GOODFeb 2, 2021 · N730CK · Boeing 737400 · Emergency LightingSDR EE4Y2020041611279Frame · crackedUPPER FUSELAGE BS 303.9 FRAME-WEB WITH CRACRS AND ELONGATED HOLES,REPAIR. IT WAS REPAIRED FOLLOWING REPAIR INSTRUCTIONS UNDER SERVICE REQUEST:4-4741753894 AND IAW COOPESA EO COO-CO-2020-11245-R00.(REF: OB A1J003 ITEM 2-52).Apr 16, 2020 · N311GT · Boeing 737400 · Fuselage Main, FrameSDR EE4Y2020041611278Support · corrodedRH WING TRUNNION BEAM SUPPORT HOLE BORE WITH CORROSION,REPAIR. IT WAS REPAIRED FOLLOWING REPAIR INSTRUCTIONS UNDER SERVICE REQUEST: 4-4717774794 AND IAW COOPESA EO COO-EO-2020-11238-R00.(REF: JOB A1J003 ITEM 1-98).Apr 16, 2020 · N311GT · Boeing 737400 · Wing, Landing Gear Attach FittingsSDR EE4Y2020041611277Support · corrodedLH WING TRUNNION BEAM SUPPORT HOLE BORE WITH CORROSION,REPAIR.IT WAS REPAIRED FOLLOWING SERVICE REQUEST:4-4717811378 AND IAW COOPESA EO COO-CO-2020-11239 R00 (REF: JOB A1J003 ITEM 1-99).Apr 16, 2020 · N311GT · Boeing 737400 · Wing, Landing Gear Attach FittingsSDR I5EA2019111301Power Supply · inoperativeO/W EXIT EMERGENCY LIGHT INOP.Nov 13, 2019 · N803TJ · Boeing 737400 · Emergency LightingSDR I5EA20190920002Jackscrew · lack of lubeDURING INITIAL CLIMB DURING RT TURN FELT A SERIES OF RAPID THUMPS LASTING ABOUT 1 SECOND FELT AS WELL IN THE CONTROL COLUMN THEN AFTER LEVEL OFF AT 3000' ANOTHER SERIES OF THUMPS AUTO PILOT DISENGAGED YAW DAMPER DIENGAGED RETURNED TO MIA FOR LANDING. SERVICEDSep 15, 2019 · N538CC · Boeing 737400 · Trailing Edge Flap Control SystemSDR CA190812012Support · worn(CAN) DESCRIPTION: DURING HMV INSPECTION, TEE SUPPORTS FOUND WORN ON HALON FIRE EXTINGUISHING SYSTEM PART NUMBERS PD37-53-2873-1, FIVE IN TOTAL. WO 33428411 SNAG 216. INSPECTION TASK CARD 737-345-53-00-100-0030. GENERATING DOCUMENT NUMBER TSR 1753129. CORRECTIAug 9, 2019 · Boeing 737400 · Fuselage Miscellaneous StructureSDR CA190812009Inlet · cracked(CAN) DESCRIPTION: DURING AN HMV INSPECTION (737-345-70-842-01-01) A CRACK WAS FOUND AT THE 6 O`CLOCK POSITION OF THE @2 INLET COWL. REPLACING PART (TC# 20190812009)Aug 8, 2019 · Boeing 737400 · Engine Cowling SystemSDR CA190809016Structure · worn(CAN) DURING HMV INSPECTION, LOWER L/H CHORD IN AIR CONDITIONING BAY FOUND WORN BEYOND ALLOWABLE LIMITS. INSPECTION TASK: 737-345-53-862-01-01, WORK ORDER 33421216, SNAG 135. PART REPLACED. (TC# 20190809016)Aug 6, 2019 · Boeing 737400 · Fuselage Main, StructureSDR CA190715016Bolt · sheared(CAN) UPON REMOVING THE BRAKE UNIT ON #3, BOTH STUD SHEAR BOLTS WHERE FOUND TO BE BROKEN AND WERE FOUND INSIDE THE OLD BRAKE UNIT.. THE BRAKE UNIT, ITSELF WAS WORN TO LIMITS AND A FEW BRAKE PADS HAD SHIFTED. NEW SHEAR BOLTS INSTALLED. (TC# 20190715016)Jul 12, 2019 · Boeing 737400 · Landing Gear Brake SystemSDR I5EA201906280002Battery Pack · failedDISCREPANCY: L-2 DOOR EMERGANCY BATTERY DOSE NOT HOLD CHARGE. CORRECTIVE ACTION: REMOVE AND REPLACED BATTERY PACK IAW B737-AMM 33-51-51 TEST OKAY IAW AMM 33-51-51.Jun 19, 2019 · N418US · Boeing 737400 · Emergency LightingSDR CA190608001Wire · chafed(CAN) NR 1 BLEED POPS BREAKER. BLEED AIR REGULATOR REPLACED. REPLACED 2 WIRES FROM D1208 TO D3064 ON PRESSURE REGULATOR. FOUND BADLY CHAFED, WIRE #W1508-012-16R AND W1508-013-16R (TC# 20190608001)Jun 7, 2019 · Boeing 737400 · Engine Bleed Air System WiringSDR CA190329036Mount · cracked(CAN) DESCRIPTION: DURING ROUTINE INSPECTION OF PYLON WHILE PERFORMING SCHEDULED POWERPLANT REMOVAL AND INSTALLATION , BOTH FORWARD AND THE AFT ENGINE MOUNT ISOLATORS WERE FOUND TO HAVE CRACKS IN THE RUBBER. CORRECTION: ALL THREE MOUNTS BEING REPLACED.Mar 27, 2019 · Boeing 737400 · Air Distribution SystemSDR CA190214009Starter · failed(CAN) #1 STARTER FAILED ON START UP. [ INTERNAL FAILURE] STARTER REPLACED IAW AMM 80-11-03.Feb 13, 2019 · Boeing 737400 · Engine StarterSDR I5EA2018121700003Battery Pack · inoperativeDISCREPANCY: R/H AFT CABIN, ROW 10 EMERGENCY LIGHT INOP. CORRECTIVE ACTION: REPLACED BATTERY PACK, M01435 ROW 15, PER B737-400 AMM 33-51-81.Dec 12, 2018 · N803TJ · Boeing 737400 · Emergency LightingSDR I5EA2018121000002Air Data Module · smokeDISCREPANCY: L/P 31547 ITEM 1 - F/O ALTIMETER AND AIRSPEED INDICATORS INOP. ITEM 2 - STRONG SMELL OF SMOKE IN CABIN AND COCKPIT. CORRECTIVE ACTION: L/P 31547 ITEM 1 - REPLACED #2 ADC, OPS CHECKS GOOD IAW AMM 34-12-11. ITEM 2 - PERFORMED CONDITIONAL INSP IDec 8, 2018 · N803TJ · Boeing 737400 · Altimeter, Barometric/EncoderSDR 2018FA0000285Clevis · corrodedRT STAB AFT SPAR FITTING AFT LOWER CLEVIS FACE HAS CORROSION.Jul 24, 2018 · Boeing 737400 · Empennage StructureSDR 2018FA0000284Lug · corrodedRT STAB AFT LOWER SPAR JOINT LUG HAS CORROSION ON FWD FACE.Jul 24, 2018 · Boeing 737400 · Empennage StructureSDR 2018FA0000282Clevis · corrodedRIGHT STAB AFT FITTING FWD LOWER CLEVIS FWD FACE HAD CORROSION.Jul 24, 2018 · Boeing 737400 · Empennage StructureSDR 2018FA0000281Clevis · corrodedRT STAB AFT FITTING FWD CENTER CLEVIS FWD FACE HAS CORROSION.Jul 24, 2018 · N25773 · Boeing 737400 · Vertical Stabilizer Miscellaneous StructureSDR 2018FA0000279Lug · corrodedRIGHT STAB AFT CENTER SPAR JOINT LUG HAS CORROSION ON FWD FACEJul 23, 2018 · Boeing 737400 · Horizontal Stabilizer StructureSDR 2018FA0000278Clevis · corrodedRIGHT STAB AFT SPAR FITTING FWD CENTER CLEVIS FWD FACE HAD CORROSIONJul 23, 2018 · Boeing 737400 · Horizontal Stabilizer StructureSDR 2018FA0000277Clevis · corrodedRT STAB AFT SPAR FITTING AFT CENTER CLEVIS AFT FACE HAS CORROSION.Jul 23, 2018 · Boeing 737400 · Horizontal Stabilizer StructureSDR 2018FA0000276Clevis · corrodedLEFT STAB REAR SPAR UPPER FWD CLEVIS HAS CORROSION (AIRCRAFT SIDE)Jul 23, 2018 · Boeing 737400 · Horizontal Stabilizer StructureSDR 2018FA0000275Lug · corrodedLEFT HORIZONTAL STABILIZER AFT ATTACH LUG UPPER BUSHING AFT FACE HAS CORROSION.Jul 23, 2018 · Boeing 737400 · Horizontal Stabilizer StructureSDR 2018FA0000274Clevis · corrodedLEFT STABILIZER REAR SPAR UPPER AFT CLEVIS HAS CORROSION.Jul 23, 2018 · Boeing 737400 · Horizontal Stabilizer StructureSDR 2018FA0000273Clevis · corrodedLEFT STAB. REAR SPAR FWD LOWER CLEVIS HAD CORROSION.Jul 23, 2018 · Boeing 737400 · Horizontal Stabilizer StructureSDR 2018FA0000272Clevis · corrodedLEFT STABILIZER AFT SPAR FITTING LOWER CLEVIS HAS CORROSION.Jul 23, 2018 · Boeing 737400 · Horizontal Stabilizer StructureSDR 2018FA0000271Bushing · corrodedLEFT HORIZONTAL STABILIZER AFT ATTACH LUG LOWER BUSHING AFT FACE HAD CORROSION, STAB SIDE.Jul 23, 2018 · Boeing 737400 · Horizontal Stabilizer StructureSDR K11A2018043073001Warning Light · illuminatedRIGHT BLEED TRIP OFF LIGHT ILLUMINATED ON TAKEOFF ROLLApr 30, 2018 · N730CK · Boeing 737400 · Bleed Air Indicating SystemSDR 2018FA0000153Wire Harness · damagedWIRING DEFECTS WERE DISCOVERED ON AN OVERHAULED APU. DURING TROUBLESHOOTING OF THE WIRING DEFECTS ON THE APU THE WIRING HARNESS WAS FOUND IN POOR CONDITION. INCORRECT AND DANGEROUS SPLICES HAD BEEN FITTED WITH LOOSE & UNPROTECTED WIRES PROTRUDING FROM VARIOUApr 24, 2018 · N496CS · Boeing 737400 · APU System WiringSDR EE4Y2018041906384Skin · crackedDURING THE ACCOMPLISHMENT OF SRM 57-20-10, REPAIR 4, FOUND THE LT WING UPPER SKIN, TWO FASTENER HOLES CRACKED. ONE FASTENER HOLE LOCATED AT FASTENER ROW 1, SPECIFICALLY AT WBL 181.4, IT WAS REPAIRED IAW SRM B737-57-20-10, REPAIR 7. THE OTHER FASTENER HOLE LOMar 26, 2018 · N306GT · Boeing 737400 · Wing, Plate/SkinSDR EE4Y2018041906385Spar · crackedDURING THE INSPECTIONS IAW SB 737-57A1318 R0 AND AD2014-12-13, THE LT WING, REAR SPAR UPPER SECTION CRACKED AT RSS 221. THE DAMAGED SPAR WAS REPAIRED IAW SRM 57-20-10, REPAIR 4.Mar 24, 2018 · Boeing 737400 · Wing SparSDR EE4Y2018041806376Attach Fitting · corrodedDURING AN INSPECTION OF THE A/C BAY AREA, FOUND AT LT PRIMARY AND SECONDARY HEAT EXCHANGERS AREA, THE ATTACHING FRAME WITH SEVERAL POINTS OF CORROSION. THE DAMAGED AREA WAS REPAIRED IAW SR 4-3996015419.Mar 24, 2018 · N306GT · Boeing 737400 · Fuselage Main, Attach FittingsSDR EE4Y2018041806375Link · corrodedDURING A STRUCTURAL INSPECTION, THE SWING LINK WAS FOUND CORRODED AROUND ONE OF ITS BORES, THE AFFECTED SWING LINK WAS REPLACED IAW AMM 57-15-00.Mar 24, 2018 · N306GT · Boeing 737400 · Main Landing GearSDR EE4Y2018041906379Skin · corrodedFOUND THE SKIN BETWEEN LBL 45.61 AND LBL 65 AT STRINGER 1C, WITH CORROSION. THE DAMAGED AREA WAS REPAIRED IAW SR 3-4185490079.Mar 21, 2018 · N306GT · Boeing 737400 · Fuselage Main, Plate/SkinSDR EE4Y2018041906378Vertical Beam · crackedDURING INSPECTION OF THE BS 178 BULKHEAD, FOUND A VERTICAL BEAM CRACKED AT RBL 5.7 AND WBL 181.5. THE DAMAGED VERTICAL BEAM WAS REPAIRED IAW SB 737-53A1225.Mar 20, 2018 · N306GT · Boeing 737400 · Fuselage Main, BulkheadSDR EE4Y2018041806377Support Angle · corrodedDURING THE INSPECTION OF THE MAIN LANDING GEAR AREA, IT WAS FOUND AT BS 706, RBL 65 AND WBL 200, THE SUPPORT ANGLE P/N 65-50733-34, VERTICAL FLANGE WITH CORROSION. THE DAMAGED ANGLE WAS REPAIRED PER AEI EO6410 INSTRUCTIONS AND APPROVED UNDER FAA FORM 8110-3, PMar 15, 2018 · N306GT · Boeing 737400 · Fuselage, Landing Gear Attach FittingsSDR EE4Y2018041906383Spar · damagedDURING A STRUCTURAL INSPECTION, FOUND THE LT WING, INBD MID FLAP DENTED ON THE NOSE SKIN INBD END, FOUND BEYOND SRM LIMITS. THE DAMAGED SKIN SECTION WAS TRIMMED OFF AND FOUND THE FRONT SPAR LOWER SECTION CRACKED AND CORRODED. THE DAMAGED SKIN AND SPAR SECTIONMar 12, 2018 · N306GT · Boeing 737400 · Trailing Edge Flaps
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