Boeing 737-401

Service difficulty reports · 2,961

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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 = '737401'
  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 USAASB98145Light · inoperativeMCI - PILOT REPORTED THE RIGHT OVERWING EMERGENCY EXIT LIGHT WAS INOP. MAINTENANCE INSPECTED AND RESEATED THE LIGHT ASSY. OPERATIONAL CHECK GOOD. (M)Jun 8, 1998 · N412US · Boeing 737401 · Emergency LightingSDR USAASB98146Air Filter · dirtyMCI - FLT 165 - EN ROUTE TO PHX, CREW COULD NOT TRANSFER FUEL OUT OF THE AUXILIARY FUEL TANK. CREW PULLED ALL AUXILIARY FUEL TANK CIRCUIT BREAKERS AND RESET THEM PER MAINTENANCE CONTROL. COULD NOT RESET AFT TRANSFER CIRCUIT BREAKER ON FIRST ATTEMPT, BUT BREAJun 6, 1998 · N408US · Boeing 737401 · Fuel StorageSDR USAASB98139Air Distribution · odorCHA - FLT 598 - AT FL 350, APPROX 60 MILES EAST OF CHA, FLT ATTENDANT IN AFT CABIN CALLED FLT CREW TO INFORM THEM OF A BURNING TYPE DOOR. FIRST OFFICER PROCEEDED TO REAR OF CABIN AND CONFIRMED ODOR. ODOR WAS SIMILAR TO AN ELECTRICAL TYPE FIRE BUT NO SMOKE ORJun 3, 1998 · N406US · Boeing 737401 · Air Distribution SystemSDR USAASB98127Turbofan · malfunctionedCLT - FLT 2250 - DURING APPROACH, PILOT REPORTED A FOUL OIL SMELL CAME FROM THE AIR CONDITIONING PACKS INTO THE CABIN AS THE FLAPS WERE LOWERED. FLIGHT LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE REMOVED AND REPLACED THE RIGHT PACK TURBOFAN AND TURBOFAN CONMay 29, 1998 · N413US · Boeing 737401 · Cabin Cooling SystemSDR 98ZZZX2341Control Valve · malfunctionedCLT - FLT 2250 - DURING APPROACH, PILOT REPORTED A FOUL OIL SMELL CAME FROM THE AIR CONDITIONING PACKS INTO THE CABIN AS THE FLAPS WERE LOWERED. FLIGHT LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE REMOVED AND REPLACED THE RIGHT PACK TURBOFAN AND TURBOFAN CONMay 29, 1998 · N413US · Boeing 737401 · Cabin Cooling SystemSDR USAA980232Skin · crackedCLT - DURING A RON VISUAL INSPECTION, FOUND A .75 INCH CRACK AT RIGHT FUSELAGE STA 727E AT STR 23R ON THE SKIN. INSTALLED DOUBLER PER EA 61760.May 12, 1998 · N404US · Boeing 737401 · Fuselage Main, Plate/SkinSDR USAASB98085Fuse · blownROC - MAINTENANCE FOUND THE FOLLOWING EMERGENCY LIGHTS INOP DURING THE OVERNIGHT CHECK, LEFT OVERWING HATCH SIGN L751, RIGHT EXTERIOR AFT OVERWING FLOOD LIGHT L548 AND THE AISLE LOW LEVEL LIGHTING AT SEAT ROWS 6 THROUGH 9. MAINTENANCE RELAMPED THE EXTERIOR AFApr 2, 1998 · N422US · Boeing 737401 · Emergency LightingSDR USAASB98080Air Distr · odorEWR - FLT 7003 - AFTER TAKEOFF, AT APPROX 10,000 FT, THE CABIN FILLED WITH SMOKE. CAPTAIN DUMPED PRESSURE, OPENED OUTFLOW VALVE AND PLACED RECIRCULATION FAN ON HIGH. CAPTAIN DECLARED AN EMERGENCY AND DIVERTED TO EWR. DURNG DESCENT, CABIN CLEARED WITH MINOR Mar 28, 1998 · N420US · Boeing 737401 · Air Distribution SystemSDR USAASB98069Adi · failedPIT - FLT 1498 - UPON CLIMB-OUT FROM PIT, CAPTAINS ATTITUDE INDICATOR FAILED. DECISION WAS MADE TO RETURN TO FIELD AT PIT. FLIGHT LANDED WITHOUT FURTHER INCIDENT. NO EMERGENCY WAS DECLARED. MAINTENANCE REMOVED AND REPLACED THE CAPTAINS ATTITUDE DIRECTION IMar 19, 1998 · N411US · Boeing 737401 · Integrated Flight SystemSDR USAASB98051Seal · failedCLT - FLT 2310 - CLIMBING THROUGH 8,000 FEET, THE FIRST OFFICER NOTICED THE CAIBN WAS CLIMBING. CREW WENT THROUGH PROCEDURES WITH NO HELP. AT 11,000 FEET, THE CREW DECIDED TO RETURN TO FIELD AT CLT BECAUSE OF THE INABILITY TO PRESSURIZE. FLIGHT LANDED WITHOMar 3, 1998 · N418US · Boeing 737401 · Cargo/Baggage DoorsSDR USAASB98048Cover · looseTPA - FLT 1080 - ON CLIMB-OUT FROM TPA GOING THROUGH 10,000 FEET, THE NR 2 ENGINE OIL QUANTITY DROPPED TO ZERO FOLLOWED BY THE OIL PRESSURE DROPPING TO ZERO. CAPTAIN SHUT DOWN THE NR 2 ENGINE, DECLARED AN EMERGENCY AND RETURNED TO FIELD AT TPA. FLIGHT LANDEDFeb 24, 1998 · N419US · Boeing 737401 · Turbine Engine Accessory DriveSDR USAASB98046Adi · failedCLT - FLT 1699 - SHORTLY AFTER TAKEOFF FROM CLT, THE FIRST OFFICERS ADI FLAG CAME INTO VIEW AND BECAME UNRELIABLE. THE DECISION WAS MADE TO RETURN TO FIELD AT CLT FOR MAINTENANCE. FLIGHT LANDED WITHOUT FURTHER INCIDENT. NO EMERGENCY WAS DECLARED. MAINTENANFeb 22, 1998 · N420US · Boeing 737401 · Integrated Flight SystemSDR USAASB98039Battery Pack · dischargedEWR - MAINTENANCE FOUND THE EMERGENCY EXIT LIGHTS ON SEAT ROWS 20 THROUGH 24 AND THE AFT DOORS INOP. MAINTENANCE REMOVED AND REPLACED THE AFT RIGHT BATTERY PACK. OPS CHECK GOOD. (M)Feb 15, 1998 · N411US · Boeing 737401 · Emergency LightingSDR USAASB98022Battery Pack · dischargedCLT - MAINTENANCE FOUND THE MID-CABIN EMERGENCY EXIT LIGHTS WEAK DURING OPERATIONAL CHECK OF EMERGENCY LIGHT SYSTEM. MAINTENANCE REMOVED AND REPLACED THE BATTERY PACK. OPS CHECK GOOD. (M)Jan 23, 1998 · N411US · Boeing 737401 · Emergency LightingSDR USAASB98021Battery Pack · dischargedLGA - MAINTENANCE FOUND THE FORWARD ENTRY DOOR EXTERIOR EMERGENCY EXIT LIGHT AND THE LEFT AFT OVERWING EMERGNCY EXIT LIGHT INOP. MAINTENANCE REMOVED AND REPLACED THE BATTERY PACKS AND CHARGER ASSEMBLIES. OPERATIONAL CHECK GOOD. (M)Jan 22, 1998 · N405US · Boeing 737401 · Emergency LightingSDR 98ZZZM225Charger · inoperativeLGA - MAINTENANCE FOUND THE FORWARD ENTRY DOOR EXTERIOR EMERGENCY EXIT LIGHT AND THE LEFT AFT OVERWING EMERGNCY EXIT LIGHT INOP. MAINTENANCE REMOVED AND REPLACED THE BATTERY PACKS AND CHARGER ASSEMBLIES. OPERATIONAL CHECK GOOD. (M)Jan 22, 1998 · N405US · Boeing 737401 · Emergency LightingSDR USAASB98009Battery Pack · dischargedALB - MAINTENANCE FOUND THE FOLLOWING EMERGENCY/EXIT/EVACUATION LIGHTS INOP, ROW 12 RIGHT AND 20 LEFT BULLNOSE, SEAT MOUNTED LIGHTS AT ROWS 12 THROUGH 19 AND SIDEWALL EXIT LIGHT AT ROW 12F. MAINTENANCE REMOVED AND REPLACED THE BATTERY PACK AT ROW 20 CEILING, Jan 12, 1998 · N424US · Boeing 737401 · Emergency LightingSDR USAASB98008Battery Pack · dischargedALB - MAINTENANCE FOUND THE FOLLOWING EMERGENCY/EXIT/EVACUATION LIGHTS INOP, ROW 7 BULLNOSE, SEAT ROWS 6 THROUGH 9, BOTH CEILING EXIT LIGHTS, EXIT LIGHT FOR LEFT OVERWING AND ROW 11F SIDEWALL EXIT SIGN WITH ARROW. MAINTENANCE REMOVED AND REPLACED THE BATTERY Jan 11, 1998 · N417US · Boeing 737401 · Emergency LightingSDR USAASB98002Battery Pack · dischargedCLE - MAINTENANCE FOUND THE SEAT ROW EMERGENCY LIGHTS INOPERABLE AT ROWS 1 AND 2. MAINTENANCE REMOVED AND REPLACED THE POWER SUPPLY AND BATTERY PACK. OPERATIONAL CHECK GOOD. REF: OPERATOR CONTROL NR 98ZZZX379. (X)Jan 6, 1998 · N411US · Boeing 737401 · Emergency LightingSDR 98ZZZX379Power Supply · inoperativeCLE - MAINTENANCE FOUND THE SEAT ROW EMERGENCY LIGHTS INOPERABLE AT ROWS 1 AND 2. MAINTENANCE REMOVED AND REPLACED THE POWER SUPPLY AND BATTERY PACK. OPERATIONAL CHECK GOOD. REF: OPERATOR CONTROL NR USAASB98002.Jan 6, 1998 · N411US · Boeing 737401 · Emergency LightingSDR USAASB97354Fire Cntrl Panel · failedPHL - FL 0298 - UPON CLIMB-OUT FROM PHL AT 2,500 FEET, THE NR 1 ENGINE OVERHEAT LIGHT ILLUMINATED. CAPTAIN PULLED THROTTLE BACK TO IDLE AND LIGHT EXTINGUISHED. FLIGHT RETURNED TO FIELD AT PHL AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE REMOVED AND REPLDec 30, 1997 · N406US · Boeing 737401 · Fire DetectionSDR USAASB97334Battery Pack · dischargedCLE - MAINTENANCE FOUND THE AFT LEFT EMERGENCY EXIT LIGHT BATTERY PACK INOPERABLE. MAINTENANCE REMOVED AND REPLACED THE BATTERY PACK. OPS CHECK NORMAL. (X)Dec 7, 1997 · N425US · Boeing 737401 · Emergency LightingSDR USAASB97314Power Supply · failedCLE - MAINTENANCE FOUND THE EXTERIOR EMERGENCY LIGHT UNDER THE LEFT FLAP AND THE RIGHT AFT (OVERWING) INTERIOR IDENTIFIER EMERGENCY LIGHT INOP. MAINTENANCE REMOVED AND REPLACED THE M1136 POWER SUPPLY. OPERATIONAL CHECK NORMAL. (M)Nov 16, 1997 · N417US · Boeing 737401 · Emergency LightingSDR USAASB97301Battery Pack · dischargedALB - MAINTENANCE FOUDN ROW 22 BULLNOSE EVACUATION LIGHT ON RIGHT SIDE, THE AFT SERVICE DOOR EVACUATION SLIDE LIGHT AND THE LEFT LOWER WING EVACUATION LIGHT INOP. MAINTENANCE REMOVED AND REPLACED THE BATTERY PACK. OPS CHECK GOOD. (M)Nov 2, 1997 · N409US · Boeing 737401 · Emergency LightingSDR USAASB97284Battery Pack · dischargedTPA - ROWS 1 AND 2 AND MAIN CABIN DOOR EMERGENCY LIGHT INOPERATIVE. MAINTENANCE REPLACED BATTERY PACK (AD2013-1A) AND CHARGER (2012-1). OPERATIONAL CHECK GOOD. (X)Oct 14, 1997 · N417US · Boeing 737401 · Emergency LightingSDR USAASB97277Prox Switch · failedCLT - FLT 532 - AFTER T/O THE GEAR WOULD NOT RETRACT, ALL CIRCUIT BREAKERS WERE IN. WITH FLAPS AT 1 UNIT THE T/O WARNING HORN SOUNDED, WITH FLAPS UP THE HORN SILENCED. THE CREW DID NOT USE OVERRIDE TO RAISE GEAR OR ATTEMPT TO RAISE GEAR. ELECTED TO RETURN TOct 8, 1997 · N420US · Boeing 737401 · Landing Gear Retraction/Extension SystemSDR USAASB97255Window · crackedCLT (FL 1515) - AT 28,000 FEET, THE CAPTAIN'S WINDSHIELD CRACKED. HIS VISION WAS OBSCURED AND THE AIRCRAFT RETURNED TO FIELD (CLT). THE AIRCRAFT LANDED WITHOUT FURTHER INCIDENT. MTC REPLACED THE LEFT NR 1 WINDOW ASSEMBLY. LEAK AND OPS CHECK GOOD. (X)Sep 16, 1997 · N408US · Boeing 737401 · Flight Compartment WindowsSDR USAASB97254Battery Pack · failedTPA - FORWARD ENTRY DOOR EGRESS LIGHT AND ROW NR 1 AND NR 2 LEFT SIDE EMERGENCY LIGHTS ARE INOPERATIVE. REPLACED FORWARD BATTERY PACK. OPERATIONAL CHECK OK. (M)Sep 7, 1997 · N406US · Boeing 737401 · Emergency LightingSDR USAASB97220Fan Blade · bentDAB - FL2308 - AFTER T/O AT APPROX 100 FT, THE RIGHT ENGINE HAD EXCESSIVE VIBRATION, ALL OTHER INDICATIONS WERE NORMAL. THE DECISION WAS MADE TO RETURN TO FIELD. NO EMERGENCY WAS DECLARED BUT EMERGENCY EQUIPMENT WAS CALL OUT AS A PRECAUTION. THE A/C LANDED Aug 10, 1997 · N411US · Boeing 737401 · Turbine Engine Compressor SectionSDR USAASB97209Switch · dirtyDCA - FL 826 - WHILE EXTENDING FLAPS BETWEEN 1 AND 5 DEGREE GEAR WARNING HORN SOUNDED. UNABLE TO SILENCE UNTIL GEAR WAS EXTENDED. RECYCLED WITH SAME RESULTS. MAINTENANCE CLEANED 10 DEGREE SWITCH (S138), PERFORMED GROUND TEST PER MM 31-26-00. SYSTEM CHECKS Jul 28, 1997 · N413US · Boeing 737401 · Trailing Flap Position Indicating SystemSDR USAASB97200Fuse · blownTPA - MAINTENANCE FOUND THE EMERGENCY AISLE LIGHT AT SEAT ROW 1D INOP. MAINTENANCE REMOVED AND REPLACED THE 5 AMP FUSE ON THE BATTERY CHARGER. OPS CHECK GOOD. (M)Jul 20, 1997 · N413US · Boeing 737401 · Emergency LightingSDR USAASB97196Bleed Thermostat · failedSFO - FL78 - DURING CLIMB-OUT FROM SFO, THE CABIN ALTITUDE ALERT HORN SOUNDED WHEN CABIN PRESSURE CLIMB TO 13,000 FEET AS AIRCRAFT APPROACHED FL 330. DESCENT WAS INITIATED AND CABIN PRESSURE WAS REGAINED APPROACHING FL250. LEFT PACK PRESSURE INDICATED ZERO PJul 16, 1997 · N424US · Boeing 737401 · Pneumatic Distribution SystemSDR USAASB97172Battery Charger · failedORD - MAINTENANCE FOUND THE EMERGENCY AISLE LIGHT AT SEAT 1D OVERHEAD BIN INOP. MAINTENANCE RELAMPED LIGHT WITH NO HELP. CHECKED WIRING TO BATTERY CHARGER. CHECKED GOOD. REMOVED AND REPLACED BATTERY CHARGER. OPS CHECK GOOD. (M)Jun 14, 1997 · N413US · Boeing 737401 · Emergency LightingSDR USAASB97139Compressor · damagedPHL - FLT 1217 - ON TAKEOFF OUT OF MDT, THE NR 2 ENGINE INJESTED A SEA GULL. EVERYTHING WAS NORMAL UNTIL ABOUT 12,000 FEET, WHEN THE NR 2 ENGINE STARTED TO GET A VIBRATION. VIBRATION EXCEEDED 4.0 AND INCREASED TO 5.0 UNTIL POWER WAS REDUCED TO IDLE WHEREAS TMay 26, 1997 · N420US · Boeing 737401 · Turbine Engine Compressor SectionSDR USAASB97121Battery Pack · dischargedPIT - FL217, MAINTENANCE FOUND THE LEFT AND RIGHT EXTERIOR MID OVERWING EMERGENCY EXIT LIGHTS INOP. MAINTENANCE REMOVED AND REPLACED THE LEFT AND RIGHT BATTERY PACKS. OPS CHECK GOOD. (M)May 5, 1997 · N404US · Boeing 737401 · Emergency LightingSDR USAASB97109Seal · malfunctionedPIT - FLT 1807 - ON CLIMB-OUT OF PIT, AIRCRAFT WOULD NOT PRESSURIZE PROPERLY. CABIN WAS 1,000 FEET HIGHER THAN NORMAL. ALSO, A VERY LOUD NOISE WAS COMING FROM THE MAIN ENTRY DOOR. AT 26,000 FEET, CABIN WAS AT 4,900 FEET WITH CABIN CLIMB INDICATION FLUCTUATIApr 22, 1997 · N409US · Boeing 737401 · Passenger/Crew DoorsSDR USAASB97101Indicator Light · defectivePHX - FL155, WHILE ON APPROACH TO PHX, FOLLOWING GEAR EXTENSION, THE CREW OBSERVED GREEN LIGHTS FOR THE RIGHT MAIN LANDING GEAR AND THE NOSE LANDING GEAR, BUT A RED LIGHT FOR THE LEFT MAIN LANDING GEAR. RECYCLED THE GEAR AND THEN OBSERVED NO LIGHTS AT ALL FORApr 12, 1997 · N413US · Boeing 737401 · Landing Gear Position and WarningSDR USAASB97100Circuit Card · failedFLL - FL 2169 - ON DESCENT INTO FLL, CREW RECEIVED NO GREEN LIGHT INDICATION FOR THE LEFT MAIN LANDING GEAR DURING GEAR EXTENSION. CAPTAIN RECYCLED GEAR AND AIR GROUND RELAY AND LIGHTS CIRCUIT BREAKER POPPED. CAPTAIN RESET CIRCUIT BREAKER AND RECEIVED ALL NOApr 11, 1997 · N413US · Boeing 737401 · Landing Gear Position and WarningSDR USAASB97059Fuse · failedPIT - MAINTENANCE FOUND THE EMERGENCY LIGHT ABOVE THE LEFT AFT ENTRY DOOR INOP. MAINTENANCE REMOVED AND REPLACED THE FUSE IN THE POWER SUPPLY FOR THE LEFT AFT ENTRY DOOR. OPS CHECK GOOD. (M)Feb 24, 1997 · N417US · Boeing 737401 · Emergency LightingSDR USAASB97056Wire · brokenORD - MAINTENANCE FOUND THE EMERGENCY LIGHTS IN THE CABIN, AT ROW 2, INOP. MAINTENANCE REPAIRED WIRING. OPS CHECK GOOD. (M)Feb 14, 1997 · N406US · Boeing 737401 · Light System WiringSDR USAASB97018Engine · failedTOL - FL 129 - THE OIL FILTER BYPASS LIGHT ILLUMINATED ON THE NR 1 ENGINE DURING FLIGHT. CREW SHUT DOWN THE NR 1 ENGINE AND DIVERTED TO TOL. AN EMERGENCY WAS DECLARED AND THE FLIGHT LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE REMOVED AND REPLACED THE NR 1 Jan 16, 1997 · N424US · Boeing 737401 · Engine (Turbine/Turboprop)SDR USAASB97008Battery Pack · dischargedPIT - MAINTENANCE FOUND THE AFT EMERGENCY LIGHTS INOP. MAINTENANCE REMOVED AND REPLACED THE BATTERY CHARGER AND THE BATTERY PACK. BATTERY CHARGER P/N 2012-1, BATTERY PACK P/N 2013-1. OPS CHECK GOOD. (M)Dec 30, 1996 · N417US · Boeing 737401 · Emergency LightingSDR USAASB96273Hydraulic Pump · failedBWI - FL 1282 - THE 'A' HYDRAULIC SYSTEM OVERHEAT LIGHT ILLUMINATED DURING FLIGHT. CREW TURNED PUMP OFF AND AFTER FIVE MINUTES, LIGHT WENT OUT. HYDRAULIC QTY AND PRESSURE WERE NORMAL. FLIGHT DIVERTED TO BWI AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE Dec 29, 1996 · N413US · Boeing 737401 · Hydraulic Pump (Electric/Engine), MainSDR USAASB97007Power Supply · dischargedPHL - MAINTENANCE FOUND THE LEFT AFT ENTRY DOOR EMERGENCY LIGHTS INOP. MAINTENANCE REMOVED AND REPLACED THE POWER SUPPLY IN THE AFT OVERHEAD CABIN. OPS CHECK GOOD. (M)Dec 26, 1996 · N417US · Boeing 737401 · Emergency LightingSDR USAASB96269Fuel Door · leakingCLT - FL 1034 - CAPTAIN REPORTED FUEL LEAK AND HAD LOST APPROXIMATELY 450 POUNDS OF FUEL. FUEL WAS VISIBLE LEAKING OUT OF THE TOP OF RIGHT WING. FLIGHT DIVERTED INTO CLT AS A PRECAUTIONARY MEASURE. NO EMERGENCY WAS DECLARED AND THE FLIGHT LANDED WITHOUT INCDec 25, 1996 · N422US · Boeing 737401 · Wing, Plate/SkinSDR USAASB96266Power Supply · inoperativeCLE - MAINTENANCE FOUND THE RIGHT AFT SERVICE DOOR EMERGENCY LIGHT INOP. MAINTENANCE REMOVED AND REPLACED THE POWER SUPPLY IN THE AFT OVERHEAD CABIN. OPS CHECK GOOD. (M)Dec 24, 1996 · N417US · Boeing 737401 · Emergency LightingSDR USAASB96252Power Supply · cabinCLE - MAINTENANCE FOUND THE FORWARD RIGHT BULLNOSE EMERGENCY LIGHT INOP. MAINTENANCE REMOVED AND REPLACED THE POWER SUPPLY IN THE FORWARD OVERHEAD CABIN. OPS CHECK GOOD. (M)Dec 13, 1996 · N413US · Boeing 737401 · Emergency LightingSDR USAASB96248Adi · failedPVD - FL 155, FIRST OFFICERS ADI FAILED. FLIGHT RETURNED TO PVD AND LANDED WITH NO FURTHER INCIDENT. MAINTENANCE REPLACED THE ADI. (M)Nov 30, 1996 · N411US · Boeing 737401 · Integrated Flight SystemSDR USAASB96224Fuse · failedROC - LAST TWO ROWS OF FLOOR LEVEL LIGHTING AND AFT RIGHT SLIDE LIGHT INOPERATIVE. MAINTENANCE REPLACED A BAD FUSE IN THE POWER SUPPLY. (M)Nov 8, 1996 · N405US · Boeing 737401 · Emergency LightingSDR USAASB96216Packing · failedMIA - FLT 1876 - DURING CRUISE, SYS 'A' HYD QTY DECREASED TO ONE QUARTER MARK. SYS 'A' LOW PRESS LITE ILLUMINATED ON ENG NR 1 HYD PUMP. CREW SHUT OFF NR 1 ENGINE DRIVEN HYDRAULIC PUMP. SHORTLY AFTER, SYSTEM 'A' HYDRAULIC QTY DECREASED TO ZERO AND SYSTEM 'A'Oct 24, 1996 · N404US · Boeing 737401 · Hydraulic System, Main
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