# Service difficulty reports: Boeing 737-7BC A list on [Boeing 737-7BC](https://openairdocs.org/model/boeing-737-7bc.md). Newest first. General aviation reporting is voluntary. - [SDR 2025FA0000288](https://openairdocs.org/sdr/2025FA0000288.md): Fuel Cell · damaged · Apr 22, 2025 · N836BA · Boeing 7377BC · Fuel Storage > NO 5, 7 & 8 AUXILIARY FUEL TANKS FOUND TO HAVE DAMAGE INCLUDING DENTS AND SCRATCHES. AFT AUXILIARY FUEL SYSTEM HAS MISSING HARDWARE & PARTS. BOLT MISSING FROM 9 G STRAP. - [SDR QV1Y2023062224283](https://openairdocs.org/sdr/QV1Y2023062224283.md): Unknown · unknown · Jun 22, 2023 · N7777Q · Boeing 7377BC · Oxygen System > THIS REPORT IS SUBMITTED ON BEHALF OF JET AVIATION AG BASEL - FAA APPROVAL NUMBER QV1Y440K. DURING THE CURRENT MAINTENANCE INPUT AT JET AVIATION BASEL, REF. PROJECT BN77Q004, THE FOLLOWING FINDINGS WERE RAISED: WORK ORDER 4020: FLIGHT CREW OXYGEN PRESSURE F - [SDR 2GYR2020060400001](https://openairdocs.org/sdr/2GYR2020060400001.md): Lock Wire · missing · Jun 4, 2020 · N836BA · Boeing 7377BC · Drag Control System > WHILE COMPLYING WITH SERVICE LETTER 737-SL-27-286-A, IT WAS FOUND THAT THE LOCK WIRE FOR THE GROUND SPOILER INTERLOCK VALVE PUSH/PULL CABLE WAS MISSING FOR THE SUPPORT TUBE ASSEMBLY AT THE RIGHT MLG. THE MISSING LOCK WIRE WAS REPLACED WITH REFERENCE TO SERVICE - [SDR YGJR201703010001](https://openairdocs.org/sdr/YGJR201703010001.md): Flex Hose · broken · Feb 1, 2017 · N835BA · Boeing 7377BC · Passenger Oxygen System > A REPLACEMENT FLEXIBLE OXYGEN HOSE WAS PURCHASED FROM A VENDOR. THE PART WAS IN NEW CONDITION IN ORIGINAL PACKAGING WITH TRACEABILITY AS NEW SURPLUS CONDITION WITH CONFORMITY TO THE ORIGINAL VENDOR PURCHASE ORDER REQUIREMENTS AND A MANUFACTURE DATE OF 03/20/2 - [SDR QV1Y20160608002](https://openairdocs.org/sdr/QV1Y20160608002.md): Slide · no test · Jun 7, 2016 · Boeing 7377BC · Emergency Equipment > OPERATIONAL TEST OF FWD ENTRY ESCAPE SLIDE: SLIDE DEPLOYED NORMALLY, WHEN DISCONNECTING IT FROM THE AIRCRAFT THE SLIDE OPENED, THE LEFT SIDE SEEM AND DEFLATED. FROM THE SLIDE DATA PLATE, THE MFG DATE IS AUGUST 1999 AND LAST O/H WAS PERFORMED JULY 2013. - [SDR YGJR2016020300001](https://openairdocs.org/sdr/YGJR2016020300001.md): Satcom · faulted · Oct 15, 2015 · N835BA · Boeing 7377BC · Communications System > CREW REPORTED THEY WERE UNABLE TO ESTABLISH A CPDLC CONNECTION. THE CREW NOTED THAT AFTER SENDING A WINDS REQUEST THEY SAW THE MESSAGE, SENDING AND THE DATA LINK GETS STUCK IN THAT STATE. WE HAD THE CREW PULL AND RESET THE CMU 900 CIRCUIT BREAKERS. AFTER THE - [SDR BJ6A2009090812901](https://openairdocs.org/sdr/BJ6A2009090812901.md): Cover · dislodged · Sep 6, 2009 · N129QS · Boeing 7377BC · Smoke Detection > ON 9/6/2009 DURING THE TAKEOFF ROLL, CREW NOTICED THE MASTER WARNING LIGHT ILLUMINATED. CREW ABORTED THE TAKEOFF BELOW 80 KTS. ONCE CLEAR OF THE RUNWAY THE CREW DETERMINED THE SOURCE OF THE WARNING WAS THE OFFICE AREA SMOKE DETECTOR. FURTHER INVESTIGATION R - [SDR BJ6A2009082612701](https://openairdocs.org/sdr/BJ6A2009082612701.md): Window · failed · Aug 25, 2009 · N127QS · Boeing 7377BC · Flight Compartment Windows > NR3 RT WINDOW SHATTERED IN FLIGHT. FOUND THAT THE FRACTURE OF WINDOW INITIATED IN THE STRUCTURAL GLASS PANE AT THE EDGE OF THE SOLDER TAB. THERE WAS NO EVIDENCE OF ARCING OR ELECTRICAL DAMAGE. THE MOST LIKELY CAUSE IS THAT A TINY PIECE OF THE BUSS BAR WAS P - [SDR BJ6A200712901](https://openairdocs.org/sdr/BJ6A200712901.md): Charger · failed · Sep 14, 2007 · N129QS · Boeing 7377BC · Emergency Lighting > DURING GROUND OPERATIONAL TEST OF THE EMERGENCY LIGHTING SYSTEM, SEVERAL EMERGENCY LIGHTS AT THE AFT LAVATORY AREA AND L2 DOOR FAILED TO ILLUMINATE. REPLACED EMERGENCY BATTERY CHARGER TO RESTORE NORMAL OPERATION. - [SDR BJ6A200612903](https://openairdocs.org/sdr/BJ6A200612903.md): Floorbeam · corroded · Nov 10, 2006 · N129QS · Boeing 7377BC · Fuselage Main, Floor Beam > GALLEY FLOOR STRUCTURE FOUND CORRODED WHEN GALLEY WAS REMOVED FOR OTHER MAINTENANCE. REPAIRED FLOORBEAM IAW DRAWING 4182527-01 AND SRM 51-10-51. NEW MOISTURE PROTECTIVE BARRIER APPLIED UNDERNEATH FLOORING MATERIAL AND THE FLOORBOARDS. THE CORROSION APPEARS TO - [SDR SBJ6A12906001](https://openairdocs.org/sdr/SBJ6A12906001.md): Manifold · cracked · Jul 26, 2006 · N129QS · Boeing 7377BC · Passenger Oxygen System > WHILE PERFORMING RAYTHEON SB 737IGW-35A1 REV 1 AN O2 LEAK WAS DETECTED. FURTHER INSPECTION REVEALED A CRACKED WELD ON THE RT PASSENGER OXYGEN MANIFOLD P/N 97108928-009. THE LINE IS LOCATED ABOVE THE CEILING AT AIRCRAFT STATION 706. THIS IS THE SECOND DISCOV - [SDR BJ6A200612902](https://openairdocs.org/sdr/BJ6A200612902.md): Check Valve · leaking · Mar 30, 2006 · N129QS · Boeing 7377BC · Hydraulic System, Main > FLIGHT CREW REPORTED AFTER A FLIGHT FROM EGGW TO KEWR THAT THE A SYSTEM HYDRAULIC QUANTITY DECREASED FROM 92% TO 63%. THERE IS EVIDENCE OF FLUID IN THE RIGHT MAIN LANDING GEAR WELL AND ON THE AFT LOWER FUSELAGE. MAINTENANCE HAS DETERMINED THE SOURCE OF THE H - [SDR BJ6A12906001](https://openairdocs.org/sdr/BJ6A12906001.md): Manifold · cracked · Feb 6, 2006 · N129QS · Boeing 7377BC · Passenger Oxygen System > PASSENGER OXYGEN SYSTEM DISTRIBUTION MANIFOLD FOUND TO HAVE A CRACK IN THE LINE WHERE A FITTING ATTACHES TO THE MANIFOLD P/N 97108928-013. THE FITTING SEPARATED FROM THE LINE WHEN REMOVING FLEX LINE FOR OTHER MAINTENANCE. IF THIS FITTING HAD SEPARATED AND WA - [SDR 1270601](https://openairdocs.org/sdr/1270601.md): Overheat Sensor · out of tolerance · Jan 27, 2006 · N127QS · Boeing 7377BC · Overheat Detection > RIGHT WING BODY OVERHEAT LIGHT ILLUMINATED DURING CLIMB THROUGH 10,000 FT CHECKLIST PERFORMED AND LIGHT EXTINGUISHED. AIRPLANE RETURNED TO WSSL AIRPORT. PRELIMINARY TROUBLESHOOTING PERFORMED. OVERHEAT DETECTION MODULE P/N 35008-307 AND SENSOR P/N 35599-2-255 - [SDR 12706001](https://openairdocs.org/sdr/12706001.md): Overheat Sensor · out of tolerance · Jan 27, 2006 · N127QS · Boeing 7377BC · Overheat Detection > RIGHT WING BODY OVERHEAT LIGHT ILLUMINATED DURING CLIMB THROUGH 10,000 FT. CHECKLIST PERFORMED AND LIGHT EXTINGUISHED. AIRPLANE RETURNED TO WSSL AIRPORT. PRELIMINARY TROUBLESHOOTING PERFORMED. OVERHEAT DETECTION MODULE P/N 35008-307 AND SENSOR P/N 35599-2- - [SDR 1290503](https://openairdocs.org/sdr/1290503.md): Transmitter · intermittent · Jul 26, 2005 · N129QS · Boeing 7377BC · Trailing Flap Position Indicating System > FLAP POSITION DISAGREE WITH FLAP HANDLE. RT FLAP 0 DEGREES, LT FLAP 5 DEGREES. BECAUSE OF SKEW INDICATION THE FLAP SYSTEM WOULD NOT EXTEND. CREW MADE AN UNEVENTFUL -0- FLAP LANDING. PERFORMED FSEU BITE AND OBSERVED CODE 27-52259 LT FLAP TRANSMITTER SWITCH - [SDR 1290502](https://openairdocs.org/sdr/1290502.md): Amplifier · failed · Jun 20, 2005 · N129QS · Boeing 7377BC · Entertainment System > ELECTRICAL ODOR IN DINING/CONFERENCE AREA. SHUT OFF CABIN ENTERTAINMENT & GALLEY POWER. ODOR DID NOT FULLY GO AWAY. ACFT DIVERTED & LANDED. MX DISPATCHED. FOUND SOURCE OF ELECTRICAL ODOR FROM DINING ROOM/CONFERENCE AUDIO AMPLIFIER FOR ENTERTAIN SYS. NO CIRC - [SDR 1290501](https://openairdocs.org/sdr/1290501.md): O-Ring · cut · Jun 20, 2005 · N129QS · Boeing 7377BC · Hydraulic Pump (Electric/Engine), Main > COMPLETE A-SYSTEM HYDRAULIC FLUID LOSS IN FLIGHT. REPLACED O-RING P/N NAS 1612-4 ON "A" SYSTEM ELECTRIC MOTOR DRIVEN HYDRAULIC PUMP BLANKING PLUG. RESERVOIR "A" RESERVICED AND LEAK CHECKED SATISFACTORY. A RECORDS REVIEW REVEALED THAT THIS PUMP WAS INSTALLED O - [SDR N129QS0401](https://openairdocs.org/sdr/N129QS0401.md): Rod · disconnected · Aug 16, 2004 · N129QS · Boeing 7377BC · Landing Gear Brake System > DURING TAXI, CAPTAIN REPORTED HIS RT BRAKE PEDAL INOPERATIVE. PEDAL REPORTED AS (HARD). AC RETURNED TO BLOCKS, MECHANIC FOUND CAPTAINS RT BRAKE PEDAL INTERCONNECT TO CO-PILOTS PEDAL DISCONNECTED. HARDWARE FOR THE INTERCONNECT ROD WAS FOUND IN A PARTS BAG AT - [SDR N171QS04001](https://openairdocs.org/sdr/N171QS04001.md): Connector · arced · Mar 29, 2004 · N171QS · Boeing 7377BC · Electrical Connectors > NR 2 IDG DROPPED OF LINE. APU USED TO SUPPLY POWER TO BUS. CREW ELECTED TO DIVERT TO PBI FOR REPAIRS. AIRCRAFT ON FAR 91 POSITIONING FLIGHT. REPLACED AFFECTED NR 2 IDG HARNESS AND CONNECTOR. OPS CHECKED SATISFACTORY. SENT HARNESS AND CONNECTOR TO THE BOEING CO - [SDR BJ6A](https://openairdocs.org/sdr/BJ6A.md): Bushing · broken · Nov 11, 2003 · N171QS · Boeing 7377BC · Fuselage Miscellaneous Structure > HOT WATER TANK ATTACHMENT FAILURE DISCOVERED. REVIEW OF FAILED PARTS SHOWED CLEVIS PIN PULLED THROUGH WEB, BUSHING DISLODGED. BUSHING FOUND INTACT ON PIN IN CLEVIS. THE HOLE IN WEB AT FAILURE POINT SHOWED UNDAMAGED WEB MATERIAL GREATER THAN 180 DEGREES AROU - [SDR 2003F00611](https://openairdocs.org/sdr/2003F00611.md): Mount · cracked · Oct 2, 2003 · N171QS · Boeing 7377BC · Wash Water System > DURING MAINTENANCE IT WAS NOTED THAT THE FORWARD AND AFT MOUNT STRUCTURES FOR THE AFT WATER HEATER WERE FOUND DAMAGED. WATER HEATER IS SUSPENDED AT 6 POINTS. THE REAR MOUNT WHICH PREVENTS LATERAL MOVEMENT AND THE FORWARD MOUNT WAS FOUND TO BE CRACKED. THE H ## 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 = '7377BC' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/model/boeing-737-7bc/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.