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 97ZZZX3068Valve · failedPILOT REPORTED LOSS OF PRESSURIZATION ACCOMPANIED BY NIL AIRFLOW INTO CABIN. PILOT SELECTED EMERGENCY PRESSURIZATION. AIRFLOW INTO CABIN SUPPLIED BY EMERGENCY SYSTEM AND PRESSURIZATION CONTROL RESTORED.Jun 6, 1996 · N8167Y · Beech 400ASDR 96ZZZX3368Valve · failedPILOT REPORTED AIRCRAFT WOULD PRESSURIZE ON TAKEOFF UNTIL MAXIMUM DIFFERENTIAL WAS REACHED AND SAFETY VALVE WOULD ACTUATE. PILOT HAD NO CONTROL OVER RATE. GAINED ACCESS TO OUTFLOW VALVE AND FOUND SCREWS HOLDING THE DIFFERENTIAL SECTION OF CONTROLLER PULLED OJun 4, 1996 · N36955 · Cessna 441SDR 96ZZZM1015Outflow Vlv · malfunctionedPIT - FLT 1297 - AT 31,000 FEET, CREW RECEIVED A PRESSURIZATION WARNING HORN ON THE AUTOMATIC SYSTEM. CREW SWITCHED TO MANUAL PRESSURIZATION CONTROL AND DESCENDED TO 10,000 FEET. NO EMERGENCY WAS DECLARED. FLIGHT RETURNED TO FIELD AND LANDED WITH NO FURTHERMay 30, 1996 · N271AU · Boeing 7372B7SDR VNAA9600036Outflow Valve · defectiveDURING CLIMBOUT, THE CREW WAS ALERTED BY A CAS MESSAGE CABIN OVER PRESSURE. CREW ATTEMPTED TO CONTROL CABIN PRESSURE IN MANUAL MODE, WITHOUT SUCCESS. AIRCRAFT RETURNED TO THE FIELD, LANDED WITHOUT FURTHER INCIDENT. REPLACED THE OUTFLOW VALVE IAW MM 21-31-00May 20, 1996 · N439JS · Dorner DO328100SDR AALA960773Outflow Vlv Act · defectivePHX - FLT 1172 - AFTER TAKEOFF PHX DURING CLIMB-OUT, UNABLE TO PRESSURIZE A/C IN EITHER AUTO OR MANUAL MODE. ACCOMP EMERGENCY DESCENT AND ALL PAX OXYGEN MASKS SUCCESSFULLY DEPLOYED. A/C RETURNED TO PHX AND LANDED W/O INCIDENT. REPLACED NR 1 PRESSURIZATION CMay 14, 1996 · N553AA · Doug DC982SDR 96UAL900323Electronic Box · failedHAD A RAPID DECOMPRESSION OF THE AIRCRAFT AT FL370. AUTO PRESSURE SYSTEMS 1 AND 2 FAILED SIMULTANEOUSLY. REGAINED CONTROL IN MANUAL. *S/D* ELECTRONIC BOX FAILED ON OUTFLOW VALVE. ELECTRONIC BOX WAS REPLACED AND SYSTEM OPERATED NORMALLY.May 7, 1996 · N427UA · Airbus A320232SDR 96ZZZX2916Regulator · faultyCABIN ALTITUDE WOULD NOT DESCEND WITH AIRCRAFT. MAINTENANCE FOUND NO VACUUM ON TEST PORT NR 3. FURTHER TROUBLESHOOTING ISOLATED FAULTY VACUUM REGULATOR. SUSPECT CAUSE: STICKY BELLOWS INSIDE REGULATOR. 'COLD-SOAKING' CAN BE RULED OUT.Apr 27, 1996 · N295FA · Beech 400BEECHSDR 96UAL900276Outflow Valve · malfunctionedLOST CABIN PRESSURE AT FL350. EXECUTED EMERGENCY DESCENT AND REGAINED CONTROL OF CABIN IN MANUAL MODE. *S/D* ELECTRONIC BOX NR 1 FAILED ON OUTFLOW VALVE DRIVING THE VALVE OPEN. REPLACED OUTFLOW VALVE AND OPERATIONALLY CHECKED NORMAL.Apr 23, 1996 · N422UA · Airbus A320232SDR 9608999964Outflow Valve · malfunctionedAIRCRAFT WOULD NOT PRESSURIZE IN AUTO MODE AFTER TAKEOFF. OUTFLOW VALVE WORKED NORMALLY IN MANUAL POSITION. FLIGHT RETURNED TO MSP AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED CABIN PRESSURE AMPLIFIER AND OUTFLOW VALVE ACTUATOR, OPERATIONAL CHECK NORMAApr 21, 1996 · N912RW · Doug DC931SDR USAASB96068Outflow Valve · failedCLT - FLT 1139 - RIGHT A/C PACK WAS ON MEL. AFTER TAKEOFF, AIRCRAFT WOULD NOT PRESSURIZE. FLIGHT RETURNED TO CLT AND LANDED WITH NO FURTHER INCIDENT. MAINTENANCE REPLACED THE AFT OUTFLOW VALVE. (X)Apr 17, 1996 · N585US · Boeing 737301SDR Y2PA96018Valve · contaminatedELP - FLT 13608 - CABIN WOULD NOT PRESSURIZE PAST 2.5 PSI DURING CLIMB OUT. THE CABIN CONTINUED TO CLIMB DURING ASCENT PHASE OF FLIGHT AND CREW ELECTED TO RETURN TO POINT OF DEPARTURE AT EL PASO, TEXAS. NO EMERGENCY PROCEDURES WERE REQUIRED AND AIRCRAFT LANDApr 12, 1996 · N827AA · Amd FALCONSDR IXKA960010Outflow Valve · stickingFLT 11 - EWR-MCO - AFTER TAKEOFF, UNABLE TO MAINTAIN PRESSURIZATION, MANUAL CONTROLLER NO HELP. FOUND LEFT OUTFLOW VALVE STICKING AND DUMPING CABIN AIR. REPLACED SAME. (M)Apr 11, 1996 · N267US · Boeing 727251SDR RAIA960334Outflow Vlv · contaminatedSTL - FLT NR 7326 - PRESSURIZATION SQUEAL FROM FORWARD PRESSURE BULKHEAD DURING CLIMB. MAINTENANCE CLEANED AND LUBRICATED FORWARD OUTFLOW VALVE, OPERATION CEHCK GOOD. (M)Mar 29, 1996 · N558HK · Jetair JETSTM4101SDR 96UAL900223Controller · inoperativeAIRCRAFT DIVERTED TO LAX DUE TO LOSS OF CABIN PRESSURIZATION. *S/D* REPLACED CABIN PRESSURE CONTROLLER, CHECKS OK.Mar 28, 1996 · N371UA · Boeing 737322SDR 96UAL900202Outflow Valve · leakingON CLIMBOUT, HAD LOUD FLUTTERING TYPE NOISE IN FORWARD AREA OF FUSELAGE. *S/D* REPLACED FLOW CONTROL VALVE, CHECKS OK.Mar 20, 1996 · N360UA · Boeing 737322SDR 96ZZZX2240Check Valve · missingAIRCRAFT WOULD NOT PRESSURIZE. FOUND PRESSURIZATION CHECK VALVES MISSING. FOUND MISSING CHECK VALVES JAMMED INSIDE OF PN 50-380053-1 VENTURI. REMOVED CHECK VALVES, INSTALLED SERVICEABLE PRESSURIZATION VALVE ASSY, PN 1302-2. SYSTEM OPS CHECK SATISFACTORY. Mar 15, 1996 · N130PA · Beech 200BEECHSDR 96ZZZM321Control Wheel · stuck openON FLT NR 363 - BOS-RDU, CAPTAIN COULD NOT PRESSURIZE THE CABIN IN MANUAL OR AUTO. MAINTENANCE FOUND THE OUTFLOW VALVE CONTROL WHEEL STUCK IN FULL OPEN POSITION. MAINTENANCE FREED WHEEL AND OPS CHECKED OK. (M)Feb 25, 1996 · N917VV · Doug DC932SDR 96ZZZM830Outflow Actuator · malfunctionedFLT 248 - ATL-ATL, AIR RETURN, DURING CLIMB-OUT OF ATL IN MANUAL PRESSURE AND CABIN AT 5000 FEET CLIMBING AT 500 FPM NR 1 FLIGHT ATTENDANT ADVISED THE CREW THAT ALL OXYGEN MASKS HAD DROPPED. NO WARNING FROM THE COCKPIT AND NO CABIN PRESSURE LIGHT. FOUND OUTFFeb 19, 1996 · N921VV · Doug DC932SDR 9603749886Out Flow Valve · contaminatedON CLIMB OUT OF DTW, CABIN PRESSURE CLIMBED UNCONTROLLABLY. FLIGHT DESCENDED TO 1000 FEET AND OPERATED PRESSURIZATION IN MANUAL CONTROL FLIGHT, CONTINUED TO DESTINATION WITHOUT FURTHER INCIDENT. MAINTENANCE FOUND SIDEWALL INSULATION STUCK IN OUTFLOW AIR NOZZFeb 13, 1996 · N600TR · Doug DC951SDR 96UAL900082Out Flow Valve · failedCREW REPORTS, UNABLE TO PRESSURIZE AIRPLANE AFTER TAKEOFF. CAN CONTROL OUTFLOW VALVE OPEN AND CLOSE. THE RIGHT FLOW CONTROL VALVE WOULD NOT TURN ON. REPLACED FLOW CONTROL VALVE AND CONNECTOR PINS. THE SHOP FOUND THE FLOW CONTROL VALVE HAD LOW AIR FLOW CAUSJan 30, 1996 · N9060U · Boeing 737222SDR 9602182275Outflow Valve · dirtyAFTER TAKEOFF, COULD NOT PRESSURIZE AIRCRAFT. FUEL WAS DUMPED AND THE AIRCRAFT RETURNED TO DTW AND LANDED WITHOUT INCIDENT. FOUND OUTFLOW VALVES VERY DIRTY. CLEANED OUTFLOW VALVES AND INSPECTED PLUMBING TO CONTROLLER. PERFORMED PRESSURIZATION TEST, CHECKEDJan 26, 1996 · N275US · Boeing 727251SDR USAAF96010Outflow Valve · deactivatedPIT - AFTER TAKEOFF, AIRCRAFT WOULD NOT PRESSURIZE IN AUTOMATIC OR MANUAL MODES. FLIGHT RETURNED TO PIT AND LANDED WITH NO FURTHER INCIDENT. MAINTENANCE REACTIVATED THE OUTFLOW VALVE WHICH WAS DEACTIVATED DUE TO PREVIOUS WORK. (M)Jan 18, 1996 · N850US · Fokker F28MK0100SDR AWXA960011Outflow Valve · failedPHX/BUR - FLT 0484 - AUTOPRESSURE INOPERATIVE AT 280 FEET CABIN ALTITUDE AT 3,000 FEET, DIFFERENTIAL PRESSURE 8.4. REMOVED AND REPLACED REAR OUTFLOW VALVE. OPS CHECKED GOOD. REMOVED AND REPLACED CABIN PRESSURE CONTROLLER. OPS CHECKED GOOD. REFERENCE CONTRJan 9, 1996 · N304AW · Boeing 7373G7SDR USAASB96003Outflow Valve · stuckCLT - FLT 521 - AIRCRAFT WOULD NOT PRESSURIZE AFTER TAKEOFF. STOPPED AT 8,000 FEET ABOVE AGL, THEN RETURNED TO CLT. ON DESCENT AT 2,000 FEET, AIRCRAFT STARTED TO PRESSURIZE. MAINTENANCE REPLACED OUTFLOW VALVE DUE TO STICKING. OPS CHECKED OK. (X)Jan 8, 1996 · N280AU · Boeing 7372B7SDR C1HA960001Outflow Valve · froze upAT TOP OF DESCENT, PRESSURIZATION STARTED TO CLIMB THAT WAS UNCONTROLLABLE IN MAN. AND AUTOMATIC. LEVER FELT CABLES WERE BOUND. FOUND OUTFLOW VALVE COMPARTMENT WET. REPAIRED AFT LAV. PLUMBING DRIED OUT LPS3 OUTFLOW COMPARTMENT. DRIED AND LUBED OUTFLOW VALJan 2, 1996 · N802MG · Doug DC862SDR 96ZZZM72Outflow Valve · dirtyFLT NR 6586 - IAD-ISP - DURING CRUISE, DECLARED AN EMERGENCY AND LANDED AT ISP DUE TO THE PRESSURIZATION DUMPING AT 15,000 FT, THE 'CABIN' CAPTION ILLUMINATED, AND THE CABIN OXYGEN MASKS DEPLOYED. THE A/C LANDED AT ISP WITH NO FURTHER INCIDENT. HOWEVER, THE Dec 21, 1995 · N494UE · Bag JETSTM3201SDR 96ZZZX201Valve · failedINSTALLED OVERHAULED OUTFLOW VALVE IN A/C. UNIT CHECKED NORMAL IAW MAN. CMP. CARDS. PART FAILED WITH LESS THAN 1.5 HOURS IN AUTO AND MANUAL MODE. INSTALLED SERVICEABLE UNIT, SYSTEM CHECKED NORMAL IAW MAN. CMP. CARDS. A/C RETURNED TO SERVICE. SUSPECT CAUSEDec 5, 1995 · N2PK · Gulstm G1159SDR 9517799103Out Flow Valve · obstructedDURING CLIMB, CABIN OVERPRESSURIZED AND CREW WAS UNABLE TO CONTROL CABIN PRESSURE IN BOTH AUTO AND MANUAL MODE. DEACTIVATED BOTH PACKS TO DEPRESSURIZE. AIRCRAFT RETURNED TO DTW AND LANDED WITHOUT FURTHER INCIDENT. FOUND INSULATION BLANKET OBSTRUCTING THE TRNov 8, 1995 · N93S · Doug DC915SDR CA951103103Outlfow Valve · inoperative(CAN)CABIN PRESSURE 1 & 2 FAULT IN CRUISE AT FL350, UNABLE TO CONTROL MANUALLY. FLIGHT CREW REPORTED EAR PAIN FOLLOWED BY ECAM WARNING, CABIN ALTITUDE AT 8500 FEET AND CLIMBING, OUTFLOW VALVE INDICATING FU LL OPEN. NO APPRECIABLE POSITION CHANGE WHEN STANDBY SOct 12, 1995 · Airbus A320211SDR AWXA9500688Outflow Valve · failedLAS/LAX - FLT 707 - DURING TAKEOFF/CLIMB, AIRCRAFT WAS UNABLE TO BE PRESSURIZED. CREW RETURNED AIRCRAFT TO LAS AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE FOUND FORWARD OUTFLOW VALVE INOPERATIVE. REMOVED AND REPLACED FORWARD OUTFLOW VALVE. AIRCRAFT REOct 9, 1995 · N324AW · Boeing 737301SDR 96ZZZX759Regulator Valve · failedDURING TAKEOFF ROLL, VALVE PRESSURIZATION SYSTEM WENT INTO EMERGENCY PRESSURIZATION. VALVE HAD BEEN REPLACED 2.7 HOURS EARLIER FOR SAME PROBLEM. REPLACED BOTH LEFT AND RIGHT VALVES PER BEECH. AIRCRAFT TOTAL TIME 652.2 HOURS. OTHER AIRCRAFT IN FLEET HAS TOTSep 18, 1995 · N3196N · Beech 400BEECHSDR DLM88953601Outflow Valve · inoperativeDURING DEPARTURE, BOTH AUTO PRESSURIZATION CONTROLLERS FAILED AND BOTH CONTROLLERS FAULT AC MOTOR. VERIFY CHECK, NO FAULTS. REPLACED OUTFLOW VALVE ACTUATOR GEARBOX AND AC MOTORS, CHECKS GOOD PER MM CHECK.Sep 4, 1995 · N988DL · Doug MD88SDR AALA951569Outflow Valve · defectiveCVT - FLT NR 1886 - EN ROUTE CLE/DFW DURING CRUISE AT FL 350, LOST CABIN PRESSURIZATION. ACCOMPLISHED EMERGENCY DESCENT AND ALL PASSENGER OXYGEN MASKS DROPPED SUCCESSFULLY. AIRCRAFT DIVERTED TO CVG AND LANDED WITHOUT INCIDENT. PLACARDED BOTH OUTFLOW VALVES Aug 28, 1995 · N1418A · Fokker F28MK0100SDR 95ZZZX4544Outflow Valve · poppet crackedTHIS VALVE WAS WORKING PROPERLY WHEN REMOVED FOR SB 550-21-41. FURTHER INSPECTION FOUND CRACK IN POPPET AREA. IF IT HAD CRACKED MORE, IT IS POSSIBLE THAT THE CABIN WOULD HAVE DEPRESSURIZED. SUBMITTER STATES IF THIS SB APPLIES TO AIRCRAFT, C/W AS SOON AS POSAug 21, 1995 · N362CP · Cessna 550SDR AWXA9500529Regulator · inoperativeCMH - FLT 407 - ON CLIMB, CREW REPORTED THE NR 1 ENGINE BLEED WENT TO 90 PSI AND THE LEFT PACK SHUT DOWN. DUE TO APU BEING INOPERATIVE, CREW RETURNED TO CMH AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE REMOVED AND REPLACED THE PRESSURE REGULATOR. LEAK AAug 11, 1995 · N189AW · Boeing 737277SDR 95ZZZM304Outflow Vlv · malfunctionedPHX-LAX - FLT 15 - ON CLIMB-OUT AIRCRAFT LOST RT PACK, CREW WAS UNABLE TO PRESSURIZE CABIN. LEFT PACK WAS ON MEL. AIRCRAFT RETURNED TO PHX WITHOUT FURTHER PROBLEMS. MAINTENANCE REPLACED FWD OUTFLOW VALVE AND E/E COOLING EXHAUST VALVE PER MM 21-58-31, PAGE 4Jul 26, 1995 · N138AW · Boeing 7372E3SDR 9511202277Out Flow Valve · malfunctionedCLIMBING THROUGH FL 260, UNABLE TO MAINTAIN AND CONTROL CABIN PRESSURIZATION. MANUALLY DEPLOYED PASSENGER OXYGEN MASK AND DIVERTED TO DCA. MAINTENANCE REPLACED LEFT OUTFLOW VALVE. OPERATIONAL PRESSURIZATION CHECK WAS NORMAL.Jul 23, 1995 · N277US · Boeing 727251SDR 9510465522Outflow Act · malfunctionedDURING CLIMB, BOTH AUTO PRESSURE CONTROLLERS WERE INOPERATIVE WITH CABIN AUTO INOPERATIVE STATUS MESSAGE. AIRCRAFT RETURNED TO MSP. REPLACED OUTFLOW VALVE ACTUATOR. SYSTEM CHECK WAS NORMAL.Jul 8, 1995 · N522US · Boeing 757251SDR 9509459992Outflow Act · malfunctionedLOSS OF PRESSURIZATION OCCURRED ON DESCENT INTO BDL. NORMAL PRESSURE WAS REGAINED USING MANUAL OPERATION, HOWEVER, OXYGEN MASKS WERE DEPLOYED THROUGHOUT CABIN. AIRCRAFT LANDED SAFELY WITHOUT INCIDENT. REPLACED OUTFLOW VALVE ACTUATOR. OPERATIONAL CHECK OK. Jun 14, 1995 · N8960E · Doug DC931SDR 9508519976Outflow Actuator · malfunctionedAIRCRAFT FAILED TO PRESSURIZE AFTER TAKEOFF. FLIGHT RETURNED TO DTW AND LANDED WITHOUT INCIDENT. REPLACED OUTFLOW VALVE ACTUATOR. OPERATIONAL CHECK OK, AIRCRAFT RETURNED TO SERVICE.May 20, 1995 · N9340 · Doug DC931SDR WTAA950173Valve Outflow · failedSFO - EN ROUTE RDM TO SFO, FAILURE OF PRESSURIZATION SYSTEM 'AUTO' MODE REPORTED. CREW REPORTED LIMITED PRESSURIZATION CONTROL AVAILABLE IN 'MANUAL' MODE. AIRCRAFT DESCENDED TO LOWER ALTITUDE. DURING DESCENT, CABIN OXYGEN MASKS DEPLOYED (14,000 FT SWITCH). Apr 25, 1995 · N281UE · Emb EMB120RTSDR USAA950402Outflow Valve · failedPIT - FLT 19 - AFTER TAKEOFF, AC CABIN PRESSURIZATION BEGAN TO CLIMB. AUTO CABIN PRESSURE SYSTEM WAS ON MEL, ACFT WAS IN STANDBY MODE. UNABLE TO CONTROL PRESSURIZATION IN STANDBY AC AND DC MODE. FLIGHT RETURNED TO PIT WHERE LANDING WAS WITHOUT FURTHER INCIDApr 21, 1995 · N272AU · Boeing 7372B7SDR 9506382291Outflow Valve · malfunctionedDURING CLIMB AT FL210, CABIN PRESSURIZATION STARTED A SLOW UNCONTROLLABLE ASCENT. UPON CABIN ALTITUDE REACHING 10,000 FEET, INITIATED AIRCRAFT DESCENT AND RETURNED TO PHX WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED RIGHT OUTFLOW VALVE. OPERATIONAL CHECK Apr 20, 1995 · N291US · Boeing 727251SDR USAA950381Outflow · failedCLT 2234 - UNABLE TO PRESSURIZE AIRCRAFT AFTER TAKEOFF. FLIGHT RETURNED TO CLT WHERE AN OVERWEIGHT LANDING WAS MADE WITHOUT FURTHER INCIDENT. MAINTENANCE REMOVED INSULATION FROM OUTFLOW VALVE AND REPLACED OUTFLOW VALVE AND PRESSURE CONTROLLER. REFERENCE 95ZApr 14, 1995 · N272AU · Boeing 7372B7SDR 95ZZZW592Valve · failedFLT NR 049 - UNABLE TO CONTROL CABIN PRESSURIZATION. UNABLE TO CLOSE FORWARD OUTFLOW VALVE, RETURNED TO MIA. REMOVED, REPAIRED AND REINSTALLED FORWARD OUTFLOW VALVE PER MM 21-1-31. OPS CHECK NORMAL.Apr 13, 1995 · N707HE · Boeing 707330CSDR USAA950369Actuator · inoperativeRIC - FLT 0739 - AT FL 350, THE CABIN PRESSURE RED LIGHT AND MASTER WARNING LIGHT ILLUMINATED. CREW DECLARED AN EMERGENCY AND DIVERTED TO TIC. MAINTENANCE INSTALLED THE OUTFLOW ACTUATOR AND PRESSURE AMPLIFIER. OPERATIONS CHECKED NORMAL. REF CONTROL NR. 95ZApr 12, 1995 · N941VJ · Doug DC931SDR 95ZZZX1933Actuator · motor inopMIA - AFTER TAKEOFF, COULD NOT PRESSURIZE AIRCRAFT. RETURNED TO MIAMI AND MADE LANDING WITHOUT INCIDENT. PERFORMED OVERWEIGHT INSPECTION. GROUND INSPECTION REVEALED DEFECTIVE OUTFLOW VALVE ACTUATOR. REPLACED ACTUATOR AND GROUND CHECKED OKAY. RETURNED AIRCMar 27, 1995 · N426FB · Doug DC8F54SDR 95UAL727030Outflow Valve · malfunctionUNABLE TO CONTROL CABIN PRESSURE IN STANDBY OR MANUAL. MADE EMERGENCY DESCENT TO 10,000 FEET AND GOT PRESSURE TO STABILIZE. UNABLE TO CONTROL OUTFLOW VALVE. CABIN WILL RISE BUT WILL NOT DESCEND.Mar 27, 1995 · N7266U · Boeing 727222SDR 95ZZZW422Outflow Valve · leakingPIT - FLT 1406 - FLIGHT EN ROUTE CMH TO TPA WHEN CREW REPORTED A PRESSURIZATION PROBLEM. AIR LEAK AND LOUD AIR NOISE HEARD FROM FORWARD ENTRY DOOR. FLIGHT DIVERTED TO PIT WHERE LANDING WAS WITHOUT FURTHER INCIDENT. MAINTENANCE REPOSITIONED HINGE PIN IN UPPEMar 17, 1995 · N520AU · Boeing 7373B7SDR USAA950241Valve · failedLAS - FLT 414 - EN ROUTE LAX TO MCI, CABIN PRESSURE BEGAN CLIMBING. DROPPED TO FL 290 AND CREW WAS ABLE TO CONTROL PRESSURE ON MANUAL. BOTH GENERATORS THEN DROPPED OFF LINE. CREW GOT THEM BAC ON LINE AND DIVERTED FLIGHT TO LAS WHERE LANDING WAS WITHOUT FURTMar 9, 1995 · N398US · Boeing 7373B7
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