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 UIEA2026101800991Outflow Valve · faultedCRZ FLT FL 380: CABIN ALT WARNING AT 10,800 FT OBSERVED. ELEC QRH C/W. EMERGENCY DESCENT PERFORMED WITH O2 MASKS ON.(<P>REMOVED AND REPLACED LWR FWD CARGO OVERBOARD VALVE PER AMM 21-26-17/401. TEST PASSED. PERFORMED CABIN PRESSURE LEAKAGE TEST PER AMM 05-51-08Oct 18, 2026 · N852GT · Boeing 74787UFSDR A6WA202610098918Outflow Valve · faultedDURING CLIMB RECEIVED CABIN ALT CAUTION MESSAGE AT ABOUT 11,000 FT THEN RECEIVED CABIN ALT WARNING SOON AFTER. DESCENDED TO 8,000 FT PRESSURIZATION STABILIZED. AIRCRAFT REMOVED FROM SERVICE. FOUND OVERBD AND INBD EXHAUST VALVES DEACTIVATED INCORRECTLY. SECUROct 9, 2026 · N435AW · Cndair CL6002B19SDR CALA2026101220301Outflow Valve · faultedTHIS IS A LEVEL"A" CHRONIC FOR AUTO FAIL LIGHT ILLUMINATED AND ALTN LIGHT ILLUMINATED. HAD SEVERAL LRU'S REPLACED DUE TO DECAY CHECK ISSUES. BITE FAULTED CPC1 OFV OR WIRING. CHANGED OUTFLOW VALVE AND TS WIRING TO OUTFLOW VALVE T/S IAW FIM 21-31 TASK 801. WIOct 9, 2026 · N15712 · Boeing 737724SDR L4OA202609300216Outflow Valve · mismanufacturedTEXTRON ALERTED US THAT THE OUTFLOW VALVES ON SOME OF THEIR NEW DELIVERIES WERE PRODUCED BY A VENDOR WITH AN UNCERTIFIED TOOL. THE AFFECTED PARTS WERE ON 2 PLANES THAT WE HAVE TAKEN DELIVERY OF BUT NOT YET ON OUR 135 CERTIFICATE. THESE PARTS WERE ALSO ON 2 OTHSep 30, 2026 · N295N · Cessna 525CSDR ASAA2026092166991Outflow Valve · malfunctionedATB, AIRCRAFT UNABLE TO PRESSURIZE. ACCOMPLISHED BY VENT AVNCS SYS FAULT ECAM. ECAM ACTIONS COMPLETE HOWEVER STILL UNABLE TO PRESSURIZE. GROUNDED - YES. VERIFIED SKIN AIR OUTLET VALVE WAS SLIGHTLY OPEN. REAPPLIED MEL 21-26-04. VERIFIED MAIN FLAP CLOSED AND INTSep 21, 2026 · N216HA · Airbus A321271NSDR I5PA2026091768811Actuator · inoperativeETOPS SIGNIFICANT REPORT - CABIN AUTO 2 SYSTEM ON MEL - REPLACED OUTFLOW VALVE ACTUATOR PER AMMSep 17, 2026 · N688SL · Boeing 757230SDR CALA2026091619463Computer · faultedON TAKE OFF AROUND 85KTS WE GOT VENT SKIN FAULT. AFTR INITIAL EC AM ACTION S.VENT BLOWER/EXTRACT POST FLIGHT REPORTS VENT SKIN VALVE FAULT ATA2126, VENT BLOWER FAULT ATA2126, AND VENT EXTRACT FAULT ATA2126 SEE ATTACHED. REF TSM 21-26-00-810-853-A AND 21-26-00Sep 14, 2026 · N874UA · Airbus A319132SDR UIEA2026091400877Outflow Valve · faultedAFTER LEVEL OFF AT 340, SLOWLY LOST CABIN PRESSURISATION TO APPROX 10,900. BOTH OUTFLOW VALVES VERIFIED CLOSED. DESCENDED AND RETURNED TO VCP. TRANSFER TO DMI 259214 PER MEL 21-31-02A CAT C. R & R LWR FWD CARGO OVERBOARD EXHAUST VALVE IAW AMM 21-26-17-000-8Sep 14, 2026 · N851GT · Boeing 74787UFSDR CALA2026083119023Outflow Valve · faultedCABIN ALT AUTO 1 EICAS M THE AUTOMATIC PRESSURIZATION CONTROLLER 1 BITE FOUND A FAILURE. CABIN ALT UP TO APPROX 13000 FEETAS PER TOMC REQUEST REPLACED CABIN AUTO 1 PRESSURE CONTROLLER IAW AMM 21-31-02-004-00 & AMM 21-31-02-404-005 UP TO SECTION 3(D)1. REPLACEAug 29, 2026 · N649UA · Boeing 767322SDR DALA2026081804716Outflow Valve · faultedDIVERTED TO MCI DUE TO CABIN ALT CAUTION MESSAGE. REPLACED OUTFLOW VALVE. (LP 7530509 - AIRCRAFT WAS GROUNDED)Aug 17, 2026 · N135DQ · Airbus BD5001A10SDR CALA2026081418625Actuator · faultyCABIN ALTITUDE EICAS WARNING. CABIN ALTITUDE 10000 FT PILOTS REPORT EICAS WARNING AT FL330. AT THE TIME CABIN PRESSURE SHOWED 10000 WITH DIFFERENTIAL PRESSURE AT 7. ON DESCENT TO FL320 CABIN PRESSURE SHOWED 8500 WITH DIFFERENTIAL REMAINING AT 7. PERFORMED BAug 11, 2026 · N649UA · Boeing 767322SDR YENA2026070600510Module · failedFLT # 620, SAN-BOS. (ETOPS) "CAB PR2 FAULT; T/S REF TSM 21-31-00-810-849-A & REMOVED & REPLACED OUTFLOW VLV ELECTRONICS MODULE 2 (10HL2) REF AMM 21-31-51. PERFORMED OPERATIONAL TEST REF AMM 21-31-51-710-051-A ON CH 1 & 2. BOTH TEST OK.."Jul 5, 2026 · N2193J · Airbus A321271NXSDR 3EJA865JS062926Outflow Valve · failedAFTER DEPARTURE FROM KSLC PASSING THROUGH 8000’, NOTICED THE CABIN WAS NOT PRESSURIZING.Jun 26, 2026 · N865JS · Cessna 560XLSDR CALA2026062617359Outflow Valve · faultedIN DESCENT THROTTLES IDLE NOTICABLE PRESS BUMP. NEEDLE SHOWS 300 0 DN THEN RECOVERS PILOT CLARIFIED NEEDLE DN FLUCTUATED TO 3000 AND BEHAVED ERRATICALLY. CONTROLLER FAULT 19 OFV. REMOVED AND REPLACED AFT OUTFLOW VALVE ASSY. OPS CHECKS & GROUND CHKD SYS OKAY Jun 24, 2026 · N17244 · Boeing 737824SDR NACA2026062200001Outflow Valve · failedCABIN ALT WARNING IN CRUISE. UNCONTROLLABLE IN AUTO OR STANDBY. WAS CONTROLLABLE IN MANUAL MODE. CR FLT 320 FOR ABOUT 30 MINS. REMOVED AND REPLACED CABIN PRESS OUTFLOW VALVE, OPS CHECK GOOD REF B737-400 AMM 21-31-11Jun 22, 2026 · N409YK · Boeing 737436SDR DALA2026061703628Outflow Valve · faultedATB - DUE TO VENT SKIN VALVE FAULT AND VENT BLOWER FAULT. REPLACED SKIN AIR OUTLET VALVE (22HQ) AND INLET BYPASS VALVE 16HQ. (LP 8096796 - AIRCRAFT WAS GROUNDED)Jun 17, 2026 · N394DX · Airbus A321211SDR DALA2026060103319Outflow Valve · faultedATB- DUE TO AUTO PRESSURIZATION CONTROL INOP. REPLACED AUTO PRESSURE CONTROL MOTORS. REPLACED OUTFLOW VALVE. OPS CHECK NORMAL. (8831542) (AIRCRAFT GROUNDED)May 29, 2026 · N831MH · Boeing 767432ERSDR FDEA202605250637Actuator · stuckAIR RETURN IN RJAA DUE TO CABIN PRESSURE 1 & 2 FAULT. FORWARD OUTFLOW VALVE STUCK FULL OPEN. NO EMERGENCY OR PRIORITY DECLARED. R & R FWD OUTFLOW VALVE ACTUATOR PER AMM 21-31-12-04.May 25, 2026 · N662FE · Airbus A300F4605RSDR 2026FA0000350Outflow Valve · faultedCABIN DEPRESSURIZED AT FL 450. CABIN RATE CLIMBED AT 3000 FPM, CABIN ALT STOPPED CLIMBING AT 15,000'May 9, 2026 · N525CR · Cessna 525BSDR FDEA202605090575Outflow Valve · faultedEXCESSIVE CABINET ALTITUDE WARNING DURING DECENT PASSING THROUGH 14,000FT. COMPLIED WITH ECAM & EXPEDITED OUR DECENT. BOTH OUTFLOW VALVES SHOWED CLOSED & AMBER AND OUTFLOW VALVE WAS FULLY OPEN.May 9, 2026 · N657FE · Airbus A300F4605RSDR UIEA2026042200238Outflow Valve · faultedCABIN ALTITUDE EICAS MSG WARNING. PERFORMED EMERGENCY DESCENT TO 10,000 FT @ FL330, DIFF PSI 60-7.0, CABIN ALT 10000-11000 FT. NOTED OUTFLOW VALVE WAS APPROX HALF OPEN, NO CHANGE W/ AUTO 2 OR AUTO 1, WAS A SLOW RATE DECOMPRESSION.(<P>PERFORMED BITE TEST OF CABApr 22, 2026 · N1511A · Boeing 767383SDR DXTA2026041307591Outflow Valve · defectiveIN CRUISE AT FL410, WE GOT A "AUTO PRES FAIL" EICAS MESSAGE. IMMEDIATELY STARTED A DECENT TO A LOWER ALTITUDE AND RAN CHECKLIST BUT THE CABIN PRESSURE WOULD NOT RESPOND TO MANUAL INPUTS. THE CABIN WAS CLIMBING AT ABOUT 4400FPM AT THIS POINT SO WE WENT ON O2 Apr 9, 2026 · N726QS · Bombdr BD1001A10SDR YENA2026040600375Outflow Valve · failedFLT 1207, FLL-LAS. AN EMERGENCY WAS DECLARED, AIRCRAFT RETURNED TO FLL, VENT SKIN VALVE FAULT AFTER TAKE OFF COMPLETED ECAM ACTIONS WOULDN'T RESET, RETURNED TO FLL, PERFORMED AN OVERWEIGHT LANDING 4600 LBS OVER TOUCHDOWN AT 300 FT/MIN, REMOVED AND REPLACEDApr 6, 2026 · N990JL · Airbus A321231SDR AALA202603027466Outflow Valve · faultedAIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT RETURNED TO LAS DUE TO THE FLIGHT CREW REPORTING A VENT SKIN VALVE FAULT AFTER TAKEOFF. THE FLIGHT CREW ACCOMPLISHED THE ECAM PROCEDURE WHICH LIMITED THE AIRCRAFT TO 10000 FEET ALTITUDE. THE AIRFeb 27, 2026 · N161AA · Airbus A321231SDR CALA2026021713840Window · leakingPRESSURE LEAK ON CA SIDE WINDOW. LOUD AT 4.5 PSID FOUND DRAIN HOE IN BETWEEN WINDOW AND JAM. PROBABLE CAUSE OF LEAK. CORRECTED HOSE PRESSURIZED AND FOUND NO LEAKS IAW AMM 05-51-91-790-801.Feb 14, 2026 · N77543 · Boeing 7379SDR 3EJA202603250001Outflow Valve · failedCABI ALT HIGH CAS/DEPRESSURIZATION AT FL290. R&R OUTFLOW VALVE.Feb 13, 2026 · N301JT · Honda HA420SDR 3EJA20260310326Outflow Valve · failedCABI ALT HIGH CAS/DEPRESSURIZATION AT FL290. EXECUTED EMERGENCY PROCEDURES AND DIVERTED TO FXE. /R & R OUTFLOW VALVE.Feb 13, 2026 · N301JT · Honda HA420SDR WX0A2026030432749Outflow Valve · faulted(AIRCRAFT NOT GROUNDED) (EMERGENCY DECLARED) CAB PRESS EXCESS CAB ALT AT CRUISE. / REMOVED AND REPLACED PRESS CONT 2 (12HL) REF. AMM 21-31-34-000-001 AND REF. AMM 21-31-34-400-001. REMOVED AND REPLACED OUTFLOW VALVE (10HL) REF. AMM 21-31-51-000-001 AND REF. AMFeb 13, 2026 · N331NV · Airbus A319111SDR CALA2026020913643Outflow Valve · faultedFOUND BLOWN DUCT ON RT SIDE AFT E&E BAY. PT NO. DOESNT BREAK REMOVED BLOWN DUCT FROM AFT E&E BAY REF IPC 21-26-01-14B, 21-26-01-18A. LEFT DAMAGED DUCT IN AFT E&E. PULLED CIRCUIT BREAKERS D5, D6, Y17, AE02 FOR MX, REF AMM 21-26-11 REMOVED BLOWN DUCT FROM AFT E&Feb 6, 2026 · N898UA · Airbus A319132SDR CALA2026020413548Outflow Valve · defectiveSAFETY VALVE STUCK OPEN CPC 1 TESTS OK. SUGGEST REPLACING CAB PR SAFTEY VALVE 6HL AND CPC 2. REF AMM 21-31-52/401 CONFIG 00. ENSURE SAFETY VALVE 7HL IS CLOSED UNLESS IT CAN BE POSITIVELY DETERMINED WHICH SAFETY VALVE OPENED, PER TSM 21-31-00-810-808-A, NEED TFeb 2, 2026 · N847UA · Airbus A319131SDR I5PA2026020168804Outflow Valve · faultedOUTFLOW REQUIRES MANUAL OPERATION TO OPEN ON THE GROUND. R & R OUTFLOW VALVE ACTUATOR IAW AMM 21-31-04.Jan 30, 2026 · N688SL · Boeing 757230SDR HVUA202605120811Outflow Valve · fodNEARING TOP OF CLIMB THE CABIN CONTINUED A SHALLOW CLIMB PAST THE SCHEDULED CABIN ALTITUDE. IN RESPONSE THE PILOT DONNED HIS OXYGEN MASK AND INSTRUCTED PASSENGERS TO DO THE SAME WHILE HE EXECUTED A NORMAL DESCENT. AN EMERGENCY DESCENT WAS NOT PERFORMED. THE MAJan 28, 2026 · N641AT · Pilats PC1247SDR YENA2026012200061Outflow Valve · faultedFLT 115 JFK - SFO (ETOPS). VENT AVNCS SYS FAULT ON ECAM ( SKIN AIR OUTLET VALVE (AVIONICS) ).; (RESOLVED ON W/O: 1470897 TASKCARD: NR-00003 ) REMOVED AND REPLACED SKIN AIR OUTLET VALVE 22HQ W/ REF TO AMM 21-36-53 OPC600D. MDDR CLRD MX4 UPDATED PLACARD REMOVEJan 21, 2026 · N2142J · Airbus A321271NXSDR G1IA202601194102Outflow Valve · failedRAPID DECOMPRESSION AT FL310, IMMEDIATE LOSS OF CABIN PRESSURE TO A CABIN ALTITUDE AROUND 17,000 FT. DIFFERENTIAL SLOWLY DECREASED FROM THERE UNTIL THE DIFFERENTIAL WAS AT ZERO. WE WERE REQUIRED TO USE THE OXYGEN MASKS AND DESCEND TO 10,0000 FT. DURING DECENT Jan 14, 2026 · N393GF · Beech B300SDR DXTA2026011306507Outflow Valve · faultyON DEPARTURE CABIN WAS NOT PRESSURIZING AND THE RATE OF CLIMB INDICATOR WAS MIRRORING THE AIRCRAFTS VERTICAL SPEED. WE TRIED MANUAL PRESS AND THE CHERRY PICKER WITH NO SUCCESS. MASKS DID NOT DEPLOY WE NEVER EXCEEDED 6000' AND WE WERE UNDER MAX LANDING WEIGHT FJan 11, 2026 · N689QS · Cessna 560XLSDR DALA2026010600101Outflow Valve · inoperativeDIVERTED TO JFK DUE TO A PRESSURIZATION ISSUE. AVIONICS VENT, SKIN AIR OUTLET VALVE APPEARS TO HAVE FAILED PARTIALLY OPEN. CORRECTIVE ACTION: REPLACED THE 22HQ, SKIN AIR OUTLET VALVE. (LP: 8069838)Jan 5, 2026 · N328NB · Airbus A319114SDR DXTA2026010506407Outflow Valve · faultedFLIGHT CREW COMPLIED WITH MAINTENANCE PROCEDURE IN MEL. AIRCRAFT DID NOT PRESSURIZE IN AUTO. CORRECTIVE ACTION: REMOVED OUTFLOW VALVE CONTROLLER P/N: 65000062-9 S/N: 65000062-00472 AND INSTALLED CUSTOMER SUPPLIED "REPAIRED" OUTFLOW VALVE CONTROLLER P/N: 65000Jan 2, 2026 · N912QS · Cessna 680ASDR YENA2026010200005Outflow Valve · faultedFLT #1487 BOS-LAX (ETOPS), VENT AVIONIC FAULT SKIN AIR OUTLET VALVE ( SKIN AIR OUTLET VALVE (AVIONICS).; PERFORMED BITE TEST OF AEVC IAW AMM 21-26-00. TEST OK.Dec 30, 2025 · N2142J · Airbus A321271NXSDR SWIA20251223021Outflow Valve · obstructedEMERGENCY DESCENT DUE TO RAPID DEPRESSURIZATION AT 33K FT. CALL FROM FA ABOUT A LOUD BANG FOLLOWED BY LOSS OF PRESSURIZATION. RAN QRC & QRH, LANDED WITHOUT ANY ISSUES. (FLIGHT 5053) DURING PRESSURIZATION OPS CHECKS FOUND ONCE 6.0 DELTA P IS REACHED RATE INDIDec 21, 2025 · N929EV · Cndair CL6002B19SDR AALA202512181561Outflow Valve · faultedAIRCRAFT GROUNDED: AN EMERGENCY DECLARED AT INITIAL CRUISE, RECEIVED ECAM CABIN PRESSURE SYS 1 FAULT FOLLOWED SHORTLY BY ECAM CABIN PRESSURE SYS 1 & 2 FAULT. CREW REPORTED CABIN PRESSURIZATION OPS IN MANUAL MODE OKAY. FLT CREW REPORTED DURING INITIAL DESCENT IDec 16, 2025 · N407AN · Airbus A321253NXSDR AALA202512122151Outflow Valve · failedAIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: AUTO PRESSURIZATION FAIL LIGHT CAME ON DURING CLIMBING THROUGH FL340. AIRCRAFT DIVERTED TO AND LANDED SAFELY AT ORD. REMOVED AND REPLACED AFT OUTFLOW VALVE ASSEMBLY. PER AMM 21-31-03.Dec 11, 2025 · N956AN · Boeing 737823SDR ANCF20251215038Outflow Valve · faultedVENT SKIN VALVE FAULT AT 4500 FT PROCEDURE DONE AND UNSUCCWAFUL  RETURNED TO VUP. IAW AMM 21-26-00-040-002-A STEP 4.A.7.10 POSITION OF THE SKIN AIR OULET VALVE WAS VERIFY TO 45° AFTER DEACTIVATION. WAS FOUND WITH AMBAR XX ON ECAM. SUBSCUENTLY THE SKIN AIR  OUDec 10, 2025 · N740AV · Airbus A320214SDR AALA202512168232Outflow Valve · failedAIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: SHORTLY AFTER LEVEL OFF AT FL370, CABIN ALTITUDE ALERT SOUNDED AND FLASHED, MANUALLY DEPLOYED MASKS. AIRCRAFT DIVERTED TO AND LANDED SAFELY AT PIT. GVI OF APU AIR DUCT BOOT. REMOVED AND REPLACED OUTFLOWDec 7, 2025 · N862NN · Boeing 737823SDR YENA2025120101131Outflow Valve · failedFLT#1817, JFK-POS. (ETOPS) (AN EMERGENCY WAS DECLARED AND THE AIRCRAFT RETURNED TO JFK) WHILE CLIMBING AIRCRAFT WOULD NOT PRESSURISE, NO PRECEDURE ON 2RM, AIR RETURN; PER TSM TASK 21-31-00-810-8090A. ACCOMPLISHED WIRING CHECK PER AMM 21-31-51. OPS CHECK NORMALNov 28, 2025 · N2027J · Airbus A321271NXSDR DALA2025111908442Outflow Valve · faultedATO - BELOW 80KTS DUE TO A VENT SKIN VALVE FAULT. DEFERRED THE AVIONICS COOLING SKIN AIR OUTLET VALVE PER MEL AND CONTINUED. LATER REPLACED THE SKIN AIR OUTLET VALVE. (LP: 8022576)Nov 16, 2025 · N376NW · Airbus A320212SDR YENA2025110701091Outflow Valve · faultedFLT#2801, FLL-LAX. (AN EMERGENCY WAS DECLARED) "CABIN PPRESS SYS 1 & 2 FAULT 36000' .78 ECAM & QRH ACCOMPLISHED; REF L/P 'S 4441610 R/R OUTFLOW VALVE,4441611-4441612-AND 4441613 PERFORMED CPC1+2 BITE AND TEST OPS CHECK OUTFLOW VALVE AND SAFETY VALVE ANov 5, 2025 · N968JT · Airbus A321231SDR CALA2025102210399Outflow Valve · faultedCABIN ALT WARNING ON DESCENT, CABIN ALT 10/11 THOUSAND FT. COMPLIED WITH CABIN ALT QRC DEFER AUTO 1, BRIEFED OTBND CREW. PERFORMED DCPC BITE CK 1 FAULT REPORTED CODE 017. PULLED & COLLARD PRESSURIZATION CONTROL AUTO 1 CB ON P6-4 PANEL MEL 2114A REJECTING MELOct 22, 2025 · N77538 · Boeing 737824SDR P5CA2025101800093Outflow Valve · faultedAT FLT 310, CABIN PRESSURE BECAME UNCONTROLLABLE. OUTFLOW VALVES WERE INDICATING FULLY CLOSED. CABIN ALTITUDE WAS CLIMBING 200 FPM.(<P>COMPLETED THE FOLLOWING CHECKS PER BOEING SR: CABIN SYSTEM CONTROL PRESSURE TEST AMM TASK 21-31-00-735-011 AND EXCESSIVE CABIOct 18, 2025 · N858GT · Boeing 74787UFSDR 2DYA2025081300011Outflow Valve · failedCABIN AUTO, INOP AT FL230 CABIN ALTITUDE 1 & 2 FAILED THE CABIN HOLD ONLY IN MANUAL MODE. 17-OCT-25 LP 60280Oct 17, 2025 · N705KW · Boeing 767336SDR DALA2025100707282Outflow Valve · damagedSHIP 3152 - ATB - DUE TO CAB PR SYS 2 FAULT ECAM WARNING FOLLOWED BY CAB PR SYS 1 2 FAULT ECAM WARNING. CORRECTIVE ACTION: FOUND BROKEN DRILL BIT BETWEEN OUTFLOW VALVE AND THE CUTOUT FRAME NOT ALLOWING THE OUTFLOW VALVE TO CLOSE PROPERLY. REMOVED FOD AND OUTFLOct 4, 2025 · N352NB · Airbus A319114
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