JASC 2133

Service difficulty reports · 1,711

Reports filed under 2133 · Pressure Regulator/Outflow Valve, newest first.

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 jasc_code = '2133'
  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 98UAL900304Valve · malfunctionedUNABLE TO CONTROL CABIN PRESSURE DURING DESCENT. CLOSING HEAT OUTFLOW VALVE AND ADDING POWER HELPED. *S/D* REPLACED CABIN PRESSURE REGULATOR SHUTOFF VALVE.Jun 30, 1998 · N7255U · Boeing 727222SDR CA980706028Outflow Valve · failed(CAN) ON CLIMB, THE LT OUTFLOW VALVE STICKING THROUGH 22,000 FEET, UNABLE TO MAINTAIN CABIN ALTITUDE, AIRCRAFT RETURNED. WITH MODE SELECTOR SWITCH IN MANUAL, PRESSURIZATION WAS FLUCTUATING THROUGH 10,000 FEET IN CLIMB, ABLE TO OPERATE BOTH OUTFLOW VALVES NORMJun 16, 1998 · Boeing 747233BSDR CA980706027Outflow Valve · failed(CAN) ON CLIMB-OUT, AT 26,000 FEET, FLOW LIGHT ILLUMINATED, CABIN DIFFERENTIAL AT MAXIMUM 8 POUNDS PER SQUARE INCH. LEVELED OFF AT 280 WITH CABIN ALTITUDE AT 4,000 ABOUT 1,400 BELOW SCHEDULE, NO STANDBY LIGHT ON. SELECTED MANUAL TO REGAIN SCHEDULE, WHEN AUTOJun 16, 1998 · Doug DC932SDR CA980706025Outflow Valve · failed(CAN) EXCESSIVE CABIN ALTITUDE NOTED AT FLT LEVEL 310. CABIN ALTITUDE CLIMB AT 550, INITIATED EMERGENCY DESCENT, CABIN CONTINUED TO CLIMB TO 1180, AFTER LEVEL OFF CABIN PRESSURE STABILIZED. MAINTENANCE REPLACED OUTFLOW VALVE AND OPERATIONALLY CHECKED IN AUTOJun 13, 1998 · Airbus A320211SDR 98UAL900258Control Valve · malfunctionedCABIN DOES NOT PRESSURIZE DURING CLIMB IN AUTO, STANDBY OR MANUAL. *S/D* FOUND THAT THE ELECTRICAL EQUIPMENT FLOW CONTROL VALVE WOULD NOT CLOSE. REPLACED EQUIPMENT FLOW CONTROL VALVE. OPERATED ENGINES NR 1 AND NR 3 AT IDLE AND AT CLIMB POWER AND AIRCRAFT Jun 10, 1998 · N7281U · Boeing 727222SDR TWAA9809006Actuator · failedSTL - FLT 10 - DURING DESCENT EXPERIENCED AIRCRAFT DECOMPRESSION AT FL 140. NEITHER MANUAL OR AUTOPRESSURIZATION HAD ANY EFFECT. REPLACED OUTFLOW VALVE ACTUATOR MFG PN 2021974-1. CC02D 5-17-98 STL. (X)Jun 7, 1998 · N915TW · Doug DC982SDR SCNA98063Control Valve · inoperativeON CLIMBOUT THROUGH APPROXIMATELY 25,000 FEET, THE AIRCRAFT CABIN STARTED AN UNCONTROLLABLE CLIMB. INITIATED COM PROCEDURES AND CABIN REACHED APPROXIMATELY 12,000 FEET AND HELD. DESCENDED TO 10,000 FEET AND RETURNED TO SAT. DUMPED 6000 POUNDS OF FUEL BEFOREJun 7, 1998 · N288SC · Boeing 7272J4SDR USAASB98136Outflow Valve · failedPHL - FLT 1975 - CLIMBING OUT OF EWR AT APPROXIMATELY FL 135, THE AUTO PRESSURIZATION SYSTEM FAILED. SYSTEM SWITCHED TO STANDBY PRESSURIZATION AND IT FAILED ALSO. THE MANUAL MODE THEN BECAME EXTREMELY DIFFICULT TO CONTROL AND THE CABIN HORN BEGAN TO SOUND. Jun 3, 1998 · N590US · Boeing 737301SDR 98ZZZM531Outflow Valve · failedPHL - FLT 1975 - CLIMBING OUT OF EWR AT APPROXIMATELY FL 135, THE AUTO PRESSURIZATION SYSTEM FAILED. SYSTEM SWITCHED TO STANDBY PRESSURIZATION AND IT FAILED ALSO. THE MANUAL MODE THEN BECAME EXTREMELY DIFFICULT TO CONTROL AND THE CABIN HORN BEGAN TO SOUND. Jun 3, 1998 · N590US · Boeing 737301SDR DL757981105Outflow Valve · failedBOTH 1 AND 2 AUTO PRESS SYSTEMS INOP. REPLACED OUTFLOW VLV.May 23, 1998 · N645DL · Boeing 757232SDR DL72S981102Outflow Valve · stuckAFTER TAKEOFF, AIRCRAFT WOULD NOT PRESSURIZE. ALL MODES TRIED, PULLED AND RESET C/B, NO HELP. REPLACED OUTFLOW VALVE AND PRESSURE CONTROLLER AND CONTROL PANEL.May 22, 1998 · N8882Z · Boeing 727225SDR CA980608030Valve · failed(CAN) DURING CRUISE, FLT LEVEL 370, UNUSUAL CABIN ALTITUDE IN AUTO SYSTEM 2 OF 6,500 FEET. SAFETY VALVE OPENED TWICE FOR A BRIEF PERIOD, APPROXIMATELY 2 MINUTES LATER, CABIN DEPRESSURIZED AND EMERGENCY DESCENT CARRIED OUT. CONTROL REGAINED IN MANUAL MODE AT May 10, 1998 · Airbus A319114SDR AALA980928Valve · dirtyORD - FLT 1691 - EN ROUTE ORD-MIA - DURING CLIMB-OUT, COULD NOT CONTROL CABIN PRESSURE. RAN RAPID DEPRESSURIZATION CHECK LIST WITH NO EFFECT. AIR INTERRUPTED BACK TO ORD, DECLARED EMEREGNCY DUE TO AN OVERWEIGHT CONDITION. LANDED ORD WITHOUT INCIDENT. REMOVMay 9, 1998 · N6835 · Boeing 727223SDR 98ZZZX2952Valve · failedAS AIRCRAFT CLIMBED THROUGH 10,000 FEET, CABIN WOULD NOT PRESSURIZE. INSPECTION FOUND BOTH FLOW CONTROL VALVES HAD FAILED INTERNALLY. SUBMITTER STATED EXERCISE VALVES MORE FREQUENTLY DURING MAINTENANCE RUNS OR EVALUATION FLIGHTS OR ESTABLISH A TBO OR REPLACEMay 7, 1998 · N550KM · Cessna S550SDR 98ZZZX2951Valve · failedAS AIRCRAFT CLIMBED THROUGH 10,000 FEET, CABIN WOULD NOT PRESSURIZE. INSPECTION FOUND BOTH FLOW CONTROL VALVES HAD FAILED INTERNALLY. SUBMITTER STATED EXERCISE VALVES MORE FREQUENTLY DURING MAINTENANCE RUNS OR EVALUATION FLIGHTS OR ESTABLISH A TBO OR REPLACEMay 7, 1998 · N550KM · Cessna S550SDR 98ZZZX1863Outflow Valve · malfunctionedOPERATOR HAD PRESSURIZATION PROBLEM ON CESSNA 560. THIS INFORMATION MAY BE PREMATURE, BUT HE HAS NOT HEARD BACK FROM CESSNA OR ALLIED-SIGNAL ON THE PROBLEM. SUBMITTER SUSPECTS THAT AD 96-17-10 SHOULD HAVE INCLUDED MORE DASH NUMBERS. OUTFLOW VALVE WAS A 1036May 7, 1998 · N777KY · Gulstm 560SDR 9806129986Actuator · bindingLOSS OF CABIN PRESSURIZATION OCCURRED DURING CRUISE FLIGHT AND COULD NOT BE CONTROLLED MANUALLY. CREW ACCOMPLISHED EMERGENCY DESCENT TO 10,000 FEET AND CONTINUED TO DESTINATION. AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND OUTFLOW VALVE ACTUATOR BINDApr 6, 1998 · N986US · Doug DC932SDR CA980417006Outflow Valve · failed(CAN) AFTER TAKEOFF, A/C OVERPRESSURIZED DUE TO FAULTY NR SYSTEM AND NR SYSTEM DID NOT TAKE CONTROL. ALSO, DIFFICULTY ENCOUNTERED WITH MANUAL CONTROL. CLIMB-OUT OF FLIGHT LEVEL 320 LOST CONTROL OF CABIN, FIRST DESCENDED, THEN FULL CLIMB AT 3,700 FEET PER MIApr 2, 1998 · Airbus A320211SDR 98FDEA00223Outflow Valve · failedAIRCRAFT WILL NOT PRESSURIZE IN NORMAL OR AUTOMATIC. NO AUTHORITY WITH MANUAL WITH FULL INCREASE PRESSURE. CABIN VERTICAL SPEED INDICATOR FULL CLIMB THROUGHOUT. *S/D* REPLACED LEFT OUTFLOW VALVE PER MAINTENANCE MANUAL 21-30-51, PERFORMED SYSTEM ADJUSTMENT Mar 31, 1998 · N102FE · Boeing 72722CSDR 98UAL900123Out Flow Valve · failedAT FL350 FLIGHT CREW GOT EICAS MESSAGE: 'FWD OUTFLOW VALVE'. AIRCRAFT DESCENDED DUE CLIMBING CABIN. CREW COULD NOT CONTROL CABIN PRESSURE. CAPTAIN DECLARED AN EMERGENCY AT FL240. FLIGHT CLEARED TO 10,000 FEET. DURING DESCENT, ALL OXYGEN MASKS DEPLOYED.Mar 26, 1998 · N783UA · Boeing 777222SDR TWAA9804302Actuator · failedJFK 0 FLT 187 - AFTER TAKEOFF, OUTFLOW VALVE REMAINED OPEN. AIRCRAFT WOULD NOT PRESSURIZE. RETURND TO JFK. PLACARDED AUTO CABIN PRESSURIZATION CONTROL INOP PER MEL. CHECK C 4-17-97 MCI. REPLACED THE OUTFLOW VALVE ACT WHICH HAD FAILED IN THE OPEN POSITION Mar 24, 1998 · N9407R · Doug DC983SDR CA980317039Valve · dirty(CAN) AT TAKEOFF, PRESSURIZATION SYSTEM AUTO FAIL LIGHT CAME ON. THROUGH 5,000 FEET, RESET SYSTEM AND OPERATED NORMALLY FOR REST OF FLIGHT. OUTFLOW VALVE REPLACED.Mar 16, 1998 · Boeing 7372T7SDR 98UAL900115Switch · failedDIVERTED TO SACRAMENTO DUE TO THE LOSS OF CABIN PRESSURIZATION. *S/D* PROBLEM CAUSED BY FAILURE OF THE SWITCH ON THE OUTFLOW VALVE. THIS SWITCH ALSO CONTROLS THE FORWARD OUTFLOW VALVE.Mar 14, 1998 · N926UA · Boeing 737522SDR AU980458Valve · faulty(AUS) DURING CRUISE, THE CABIN ALTITUDE CLIMBED SUDDENLY. MANUAL PRESSURIZATION WAS SELECTED AND AN ATTEMPT WAS MADE TO CLOSE THE OUTFLOW VALVE BUT THIS COULD NOT BE ACHIEVED. GROUND TEST FOUND THE OUTFLOW VALVE PN 9023-15703-81 BEHAVED ERRATICALLY.Mar 8, 1998 · Airbus A320212SDR CA980311027Valve · failed(CAN) AIRCRAFT SLOW TO PRESSURIZE, PRESSURE CONTROLLER BITE CHECK CARRIED OUT AND FWD OUTFLOW VALVE FOUND STICKING. REAR OUTFLOW VALVES NOT RESPONDING IN BOTH AUTO AND MANUAL MODES. FWD OUTFLOW VALVE AND ACTUATOR REPLACED, REAR VALVES CLEANED.Mar 1, 1998 · Lkheed 10113853SDR CA980311023Connector · disconnected(CAN) AFTER TAKEOFF AND DURING CLIMB, AFT OUTFLOW VALVE STUCK IN THE OPEN POSITION, MANUAL MODE SELECTED AND STILL COULD NOT BRING THE AFT OUTFLOW VALVE IN THE GREEN BAND. AIRCRAFT RETURNED TO BLOCKS. AFT OUTFLOW VALVE CANNON PLUGS FOUND DISCONNECTED FROM Feb 28, 1998 · Lkheed 10113853SDR 98FDEA00147Outflow Valve · failedAIRCRAFT WOULD NOT PRESSURE AFTER TAKEOFF WITH TWO PACKS ON AND OUTFLOW VALVE CLOSED. COMPLETED UNSCHEDULED CABIN PRESSURE CHANGE CHECK LIST WITH NEGATIVE RESULTS. PERFORMED PRESSURIZATION TEST PER MAINTENANCE MANUAL 21-30-0 PAGE 501 TO 503. FOUND LEFT OUTFFeb 23, 1998 · N504FE · Boeing 72725SDR GAIA9821Outflow Valve · dirtyAFTER DEPARTING OKC, CREW REPORTED AIRCRAFT DEPRESSURIZATION AT FL 260. NO DOOR INDICATIONS. CREW WAS UNABLE TO CONTROL CABIN IN MANUAL OR AUTO. INSPECTED OUTFLOW VALVES. REMOVED DEBRIS. CLEANED OUTFLOW VALVES, REINSTALLED AND FUNCTIONALLY TESTED. PRESSUFeb 20, 1998 · N854AA · Boeing 727223SDR TWAA9801401Valve · wornSTL - FLT 107 - AFTER NORMAL TAKEOFF AND PRESSURIZATION NORMAL, AT APPROX 5000 MSL NOTICED OUTFLOW VALVE CLOSED AND PACK PRESSURE NORMAL BUT AIRCRAFT NOT PRESSURIZING. FLIGHT OPERATED AT 10,000 FT WITH PACKS OFF. REPLACED THE RIGHT AC FLOW CONTROL VALVE. ALJan 24, 1998 · N991Z · Doug DC931SDR 98UAL900001Out Flow Valve · failedAIRCRAFT RETURNED TO MIA, UNABLE TO PRESSURIZE CABIN AND LANDED OVERWEIGHT. *S/D* AFT OUTFLOW VALVE REPLACED TWO DAYS LATER. THERE WAS NO FURTHER PRESSURIZATION PROBLEMS.Jan 3, 1998 · N778UA · Boeing 777222SDR 98ZZZX867Gear Assy · failedDURING A START-UP FOR DEPARTURE, THE PRESSURIZATION OUTFLOW VALVE FAILED AND LOCKED IN THE CLOSED POSITION. THE CABIN DOOR WAS CLOSED AND THE APU AIR WAS SELECTED ON TO PREPARE FOR ENGINES STARTING. AT THAT TIME, THE CABIN STARTED PRESSURIZING UNCONTROLLABLYJan 1, 1998 · N281RB · Gulstm G1159SDR ABXA9702009Outflow Vlv Act · failedAIRCRAFT LOST PRESSURIZATION IN FLIGHT. COULD NOT REGAIN PRESSURIZATION WITH AUTO CONTROLLER OR MANUAL MODE UNTIL CABIN REACHED 14,000 FT. REPLACED OUTFLOW VALVE ACTUATOR IAW DC-9 SUPP MM 21-32-0.Dec 23, 1997 · N944AX · Doug DC931SDR F3LA97168Relief Valve · failedDEN - AIR TURNBACK, UPON DEPARTURE FROM DEN, FLT CREW REPORTED CABIN WOULD NOT PRESSURIZE. REPLACED PRESSURE RELIEF VALVE AND CHECKED OK. (M)Dec 19, 1997 · N271FL · Boeing 7372L9SDR 9722029907Outflow Valve · failedLOSS OF CABIN PRESSURE OCCURRED ON DESCENT PASSING THROUGH 33,500 FEET. CABIN PRESSURE WARNING LIGHT ILLUMINATED AND CABIN ALTITUDE ROSE TO 14,000 FEET. OXYGEN MASKS WERE DEPLOYED THROUGHOUT CABIN. CREW DECLARED AN EMERGENCY AND ACCOMPLISHED SUCCESSFUL DESCNov 21, 1997 · N957N · Doug DC931SDR 9721659952Out Flow Valve · inoperativeDURING CLIMBOUT THROUGH 3,000 FEET, AIRCRAFT WOULD NOT PRESSURIZE. FLIGHT CREW FOLLOWED COM, RETURNED TO DESTINATION, AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED THE OUTFLOW VALVE ACTUATOR, OPERATIONAL CHECK OK.Nov 15, 1997 · N916RW · Doug DC931SDR 9720909154Outflow Valve · wornDURING CLIMBOUT, CABIN PRESSURE CONTROLLER REMAINED IN FULL AFT POSITION WITH SUSTAINED CABIN CLIMB GREATER THAN 2000 FPM. FLIGHT CREW FOLLOWED COM PROCEDURE, RETURNED AIRCRAFT TO ORIGINATION, AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED OUTFLOW VALVE ANov 8, 1997 · N8913E · Doug DC914SDR CA971015030Seat · leaking(CAN) LEFT HAND OUTFLOW VALVE SEAT LEAKING. REPLACEDOct 1, 1997 · Boeing 727171CSDR USAABB97116Outflow Valve · failedCLT - FL 1919 - AT ROTATION, CREW NOTED A PRESSURIZATION BUMP, EXCESSIVE CABIN RATE-OF-CLIMB, AND AUTO PRESSURIZATION 'INOP' LIGHT. FLIGHT RETURNED TO CLT AND LANDED WITH NO FURTHER INCIDENT. MAINTENANCE FOUND THE OUTFLOW VALVE MOTOR BAD AND REPLACED THE OUTSep 20, 1997 · N608AU · Boeing 757225SDR CA970910016Switch · stuck(CAN) DURING CLIMB, PRESSURIZATION NOT WORKING. MAINTENANCE FOUND THE OVERBOARD VALVE CONTROL SWITCH FAULTYSep 3, 1997 · Aerosp ATR42300SDR MWEA97679Flow Cntrl Valve · inoperativePILOT REPORTS DURING CLIMB CABIN WOULD NOT PRESSURIZE. MX FOUND LT FLOW CONTROL VALVE INOP AND REMOVED AND REPLACED.Jul 22, 1997 · N500ME · Doug DC914SDR 9714103217Outflow Valve · failedDURING CLIMB-OUT, THE EXTRACT VALVE INDICATION REMAINED AMBER AND THE AIRCRAFT WOULD NOT PRESSURIZE. RETURNED TO LGA AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED THE EXTRACT VALVE (22HQ). OPERATIONAL CHECKED OK.Jul 21, 1997 · N317US · Airbus A320211SDR SWAA970621Outflow Valve · malfunctionedCABIN PRESSURIZATION FAILED 35,000 FT CABIN OUTFLOW VALVE CLOSED. DESCENDED TO 24,000 TO REDUCE CABIN ALTITUDE. CABIN ALTITUDE STABILIZED AT 5500. AIRCRAFT MADE AN UNEVENTFUL LANDING AT DAL. REPLACED PACK VALVE AND OP CHECKED PER BOEING M/M.Jul 18, 1997 · N60SW · Boeing 7372H4SDR AU971416Torque Limiter · faulty(AUS) AVIONICS COOLING SYSTEM INLET VALVE TORQUE LIMITER FAULTY.Jul 8, 1997 · Airbus A320212SDR 97ZZZX3318Press Reg Valve · failedMIA/LGW - FLT 614 - CAPTAIN REPORTED UNABLE TO COOL CABIN AT FL 310 DURING CRUISE. AIRCRAFT RETURNED TO MIA WITHOUT FURTHER INCIDENT. MAINTENANCE FOUND AFT GALLEY PRESSURE REGULATOR VALVE FAILED. REMOVED AND REPLACED PRESSURE REGULATOR VALVE. OPS CHECKED GJun 29, 1997 · N832LA · Doug DC1030SDR W8PA971138Outflow Valve · failedAIRCRAFT WOULD NOT PRESSURIZE ON CLIMB-OUT. REPLACED OUTFLOW VALVE. (M)Jun 17, 1997 · N947WP · Boeing 7373B7SDR 9711352204Out Flow Valve · failedDURING CLIMB, COULD NOT HOLD AND MAINTAIN CABIN PRESSURIZATION. RETURNED TO MSP AND LANDED WITHOUT INCIDENT. REPLACED THE LEFT AND RIGHT OUTFLOW VALVES, RIGHT AIR CYCLE MACHINE, LEFT AND RIGHT 35 DEGREE SWITCHES AND SEALS AT FLOW MULTIPLIER DUCT, AND CHECKEDJun 4, 1997 · N204US · Boeing 727251SDR EISA97098Outflow Valve · dirtyAIRCRAFT WOULD NOT MAINTAIN PRESSURIZATION. CABIN CLIMBED AT 1500 FPM. CARGO HEAT OUTFLOW CLOSED, CABIN CLIMBED AT 500 FPM, AIR TURN BACK. ALL DOOR SEALS AND DUCTS CHECKED GOOD. NO LEAKS IN PRESSURIZATION CHECKS, CLEANED OUTFLOW VALVE AND FUNCTIONALLY CHECMay 16, 1997 · N742RW · Boeing 7272M7SDR 97ZZZM719Outflow Valve · jammedFLT 6701 - MADE AN UNSCHEDULED LANDING AT TPA. CABIN PRESSURE CONTROL DIFFICULT TO MAINTAIN. MAINTENANCE FOUND INSULATION MATERIAL HOLDING THE OUTFLOW VALVE OPEN. THE INSULATION WAS REMOVED AND THE CABIN PRESSURE CHECKED PER MM 21-30-00. (M)May 11, 1997 · N282US · Boeing 727251SDR 97FDEA00265Out Flow Valve · failedDURING CLIMBOUT, CABIN PRESSURE EXCEEDED 10K FT SWITCH TO MANUAL CABIN CONTROL. BUT STILL UNABLE TO KEEP BELOW 10K FT, PERFORMED ECAM AND CHECKLIST ITEMS. NOTE ON ECAM PRESS PAGE NOTICED FWD AND AFT NUMBER TWO VALVE OPEN REGARDLESS OF MODE. CONFIRMED INOP May 8, 1997 · N419FE · Airbus A310*SDR 97ZZZX4284Outflow Valve · failedAFTER TAKEOFF, CABIN PRESSURIZATION STARTED TO PRESSURIZE TO 6,000 FEET CLIMB UNTIL THE SAFETY VALVE OPENED, THE CABIN WENT TO A 6,000 FOOT DESCENT. THE CABIN CONTINUED TO OSCILLATE IN THIS MANNER UNTIL PILOT DUMPED THE CABIN AND CONTINUED UNPRESSURIZED. ON TApr 28, 1997 · N22BM · Beech C90
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