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 DALA2024102210301Outflow Valve · faultedSHIP 3101 AFTER TAKE OFF VENT SKIN VALVE FAULT CAUTION, ACCOMPLISHED ECAM AND QRH PROCEDURES, FAULT NEVER WENT AWAY. CORRECTIVE ACTION: R/R VALVE SKIN AIR OUTLET IAW A320 AMM 21-26. (6687274)Oct 21, 2024 · N301NB · Airbus A319114SDR CALA2024101400831Outflow Valve · faultedON CLMB THROUGH 7000 HAD 4 LOUD THUMPS FOLLOWED BY A DECREASG SH UDDER CREW REPORTED A THUMP WITH A SHUDDER. NOT FELT IN BACK ONLY FELT BY FWD FLT ATT AND FLT CREW. NO PASSENGERS COMMENTED ON NOISE. HAPPENED 4 TIMES 1 TO 2 MINTUES APART ON CLIMB NEVER HAPPENEDOct 11, 2024 · N827UA · Airbus A319131SDR CALA2024101400830Outflow Valve · faultedAUTO FAIL PACK CONTROL CW WITH MEL 2114B. PULL (OPEN) AND SAFETY PRESSURIZATION CONTROL-AUTO 2 CIRCUIT BREAKER ON P6-4 PANEL. MEL 2114B APPROVED. FOUND CODE 068 OFV LRU FAIL. DDP CW MEL 2114B. *DM* SUGGEST FIM 21-31 TASK 802, SEE M/L FOR OUTFLOW VALVE V48, OR Oct 11, 2024 · N37408 · Boeing 737924SDR I5PA2024100768801Motor · inoperativeFLT NO:N/A (MX INSP.) ESI - MULTIPLE "CABIN ALT AUTO 2" EICAS MESSAGES. R/R #2 OUTFLOW VALVE ACTUATOR AC MOTOR PER AMM 21-31-05. OPS CHECK NORMAL.Oct 7, 2024 · N688SL · Boeing 757230SDR FDEA202410031414Outflow Valve · faultedON DEPARTURE, ACFT WOULD NOT PRESSURIZE. THE FWD OUTFLOW VALVE ON MEL. THE REMAINING AFT OUTFLOW VALVE INDICATED CLOSED ON DEPART BUT WOULD NOT ALLOW ACFT TO PRESSURIZE. AIR RETURN OMDWB. ON ARRIVAL VERIFIED FWD OUTFLOW VALVE WAS STILL AT 7% OPEN. STATUS Oct 3, 2024 · N880FD · Boeing 777F28SDR DALA2024100409673Outflow Valve · faultedSHIP 3029 - ATB - DUE TO VENT SKIN VALVE FAULT AIR OUTLET VALVE WAS ALREADY ON MEL. CORRECTIVE ACTION: REPLACED SKIN AIR OUTLET VALVE AND AEVC. (LP 5530548)Oct 2, 2024 · N329DN · Airbus A321211SDR QXEA2024100300226Outflow Valve · malfunctionedFLIGHT 2002. PRESN AUTO FAULT ADVISORY MESSAGE DISPLAYED ON EICAS. ELECTED TO RETURN TO THE FIELD AND ACCOMPLISHED A UNEVENTFUL LANDING. PLACED ON MEL 21-31-01A. RETURNED TO SERVICE. MEL CLEARED 10/01. DUE TO RECENT A/C HISTORY FOR FAULT CODE 21311009CPC BEINSep 29, 2024 · N638QX · Emb ERJ170200LRSDR DXTA2024100100691Outflow Valve · malfunctionedAT 40000 HEARD LOUD BOOM ALONG WITH A RUSH OF AIR. CABIN DESCENT RATE WENT TO 1700. RAN QRC AND DESCENDED TO 10000. DURING DESCENT RATE DECREASED. COMPLIED WITH THE FOLLOWING OPS CHECKS, PRESSURIZE AIRPLANE WITH APU. OUTFLOW VALVES OPENED AT 9.2. SECONDARY OUSep 28, 2024 · N579QS · Cessna 560XLSDR IPXA2024093049268Outflow Valve · no discrepancy#1 OUTFLOW VALVE CLOSED ON GROUND C/W TEST OF OUTFLOW VALVES REF 21-31-00. OPS CHECKS NORMAL . OK FOR CONTINUED SERVICESep 28, 2024 · N147UP · Airbus A300F4622RSDR DALA2024092109277Outflow Valve · faultedSHIP 3096 - ATB - DUE TO CAB PR EXCESS CAB ALT ECAM WITH ASSOCIATED VENT SKIN VALVE FAULT ECAM MESSAGE. CORRECTIVE ACTION: R/R SKIN AIR OUTLET VALVE (22HQ). OPS CHECK GOOD. (LP 6100712)Sep 19, 2024 · N396DN · Airbus A321211SDR DXTA2024092200597Outflow Valve · slowCABIN PRESSURIZATION CONTROL: DURING OUR INITIAL CLIMB, SHORTLY AFTER TAKEOFF, WE NOTICED THAT OUR CABIN PRESSURE WAS CLIMBING AT THE SAME RATE AS OUR AIRPLANE WAS CLIMBING, 3600+' PER MINUTE. THE CABIN ALTITUDE CONTROL WAS SET FOR OUR DESTINATION OF 4900 FEETSep 18, 2024 · N253QS · Cndair CL6002B16SDR DALA2024091709108Outflow Valve · faultedSHIP 3916 -ATB/PRESS- RETURNED SLC DUE TO CABIN ALT. WARNING HORN AND PRESSURIZATION ISSUE ABOVE 10K FT. CORRECTIVE ACTION: PERFORMED DCPC BITE CHECK. NO FAULTS FOUND. REPLACED COCKPIT PRESSURE CONTROL PANEL AND OUTFLOW VALVE. OPS CHECKS GOOD.Sep 16, 2024 · N916DU · Boeing 737932ERSDR I5PA2024091368802Motor · faultedFLT NO: N/A (MX INSP.) ESI - OUTFLOW VALVE ACT. AC MOTOR FAULT HISTORY. R/R SYS 1 OUTFLOW VALVE ACT. AC MOTOR PER AMM 21-31-05-004-001.Sep 12, 2024 · N688SL · Boeing 757230SDR DALA2024090508741Outflow Valve · faultedSHIP 3017 - ATB - DUE TO AVIONICS COOLING SKIN AIR OUTLET VALVE FAILING OPEN AND UNABLE TO PRESSURIZE THE CABIN. CORRECTIVE ACTION: REPLACED SKIN AIR OUTLET VALVE. (LP 6091066)Sep 4, 2024 · N317DN · Airbus A321211SDR CALA2024083000518Vent · unknownVENT SKIN VALVE FAULT ACCOMPLISHED RESET PROCEDURE AND AVEC TEST, REF TSM 21-26-00-810-803-A. TEST OK.Aug 28, 2024 · N840UA · Airbus A319131SDR GTIA2024082438330Outflow Valve · warning message"VENT SKIN VALVE FAULT -R/R SKIN AIR OUTLET VALVE IAW AMM 21-26-53. OPS CHECK GOOD"Aug 21, 2024 · N993NK · Airbus A320271NSDR A6WA202408158792Outflow Valve · failedDURING CLIMB NOTICED CABIN ALTITUDE CLIMBING ABNORMALLY HIGH. RECEIVED CABIN ALT CAUTION MSG. FOLLOWED BY CABIN ALT WARNING. CW IAC AND QRH CMSGS CLEARED IN DECENT. AIRCRAFT REMOVED FROM SERVICE. INSPECTED AND FOUND OVB EXHAUST SOV NOT FULLY CLOSED. SET TO Aug 15, 2024 · N434AW · Cndair CL6002B19SDR CALA2024081300414Outflow Valve · faultyDIFF PRESSURE EXCEEDED LIMITATION. 8.5 AT FL380CREW FL380 DIFFERENTIAL PRESS WAS 8.5 AND RISING. WENT TO 8.9. M AX WAS 8.3 OPERATING LIMIT. DESCENDED DOWN TO FL 240. WENT DOWN TO 7.8 AND AND BACK UP TO 8.5 . AT 20000 WENT TO 8.0 AT 20000 C ABIN ALT WAS AT 0 AAug 11, 2024 · N13716 · Boeing 737724SDR IPXA2024080857668Outflow Valve · faulted*** EMERGENCY DECLARED *** SDR FILED OPEN *** FL 370 CABIN ALT EICAS MESSAGE MODE SELECT WAS AUTO 2 WITH BOTH PACKS IN AUTO. CABINDIFFERENTIAL WAS APPROXIMATELY 6PSI AND CABIN ALTITUDE INDICATED 11,00-12000 FEET (SEE PHOTO FOR REMAINING WRITE-UP) PERFORMED FIMAug 8, 2024 · N309UP · Boeing 76734AFSDR DXTA2024080900147Controller · faultedIN CRUISE, FL430, AN AIR NOISE HEARD, FEELING A PRESSURE BUMP, & NOTED CABIN ALTITUDE FLUCTUATING BETWEEN -600FPM AND +400FPM. LASTED APPROX 4 MINS & LEVELED OFF AT 0. AFTER 10 MINS FLUCTUATIONS AGAIN, NOT EXCEEDING -300FPM TO +150FPM. LASTED ABOUT 3 MINSAug 8, 2024 · N404QS · Emb EMB505SDR CALA2024080800388Outflow Valve · faultyUNABLE TO PRESSURIZE AIRCRAFT ON DEPARTUREAFT OUTFLOW VAVLE CORY SWITCH REMOVED, FOR REPLACEMENT. THE CONNECTOR REMOVED IN THE CEILING PANEL. THE BLEED AIR / PRESSURIZATION LIGHT PANEL AND THE MANUAL LDG. ALT KNOB REMOVED. ALL PARTS ARE ON THE CONSOL. REMOVAug 6, 2024 · N215UA · Boeing 777222SDR YENA2024072501047Outflow Valve · faultedFLT # 2334 (PBI-DCA) DIVERTED TO MCO. VENT SKIN VALVE FAULT ON CLIMBOUT. MESSAGE RETURNED. PRESSURIZATION HELD UNTIL CAB PR MODE SEL MAN SELECTED. THEN CABIN ALT CLIMBED QUICKLY. LATER IN DESCENT VENT BLOWER FAULT AND VENT AVNCS SYS FAULT MESSAGES APPEARED. ( Jul 24, 2024 · N789JB · Airbus A320232SDR UIEA2024071800685Outflow Valve · faultedAIR TURN BACK UNABLE CRUISE ALTITUDE DUE TO PRESSURIZATION(<P>MIA MX PERFORMED INSPECTION OF EXTERIOR AND INTERIOR OF THE A/C, DOOR SEALS, A/C MANIFOLD DUCTING, NO ISSUES FOUND. R/R E/E FAN, R/R OVBD SOV, R/R X2 RELAYS FOR FWD CGO OVBD VALVE OPEN & CLOSE, & R/Jul 18, 2024 · N851GT · Boeing 74787UFSDR IXXA20240721051Outflow Valve · faultedAT FL340, CREW REPORTED LOSS OF CABIN PRESSURE, EICAS MSG AND AURAL WARNINGS-MASTER CAUTION-ILLUMINATED. CREW COMPLIED WITH ATI QUICK REFERENCE HANDBOOK PROCEDURES, AND ELECTED AIR RETURN TO DEPARTURE STATION KRFD WITH AN EMERGENCY DECLARATION DUE TO OVERWEIJul 17, 2024 · N457AZ · Boeing 767323SDR CALA2024070800149Outflow Valve · failedCABIN DEPRESSURIZED AT 320 FL. UNABLE TO CONTROL MANUALLY. OXY MASKS DEPLOYEDFA REPORTS NOISE HEARD IN FWD GALLEY AREA ATTEMPTED TO PRESSURIZE AC TO DUPLICATE ISSUE. WOULD NOT PRESSURIZE, ATTEMPTED 2 TIMES REF AMM 05-51-91-790-801. INDICATIONS WOULD NOT SHJul 3, 2024 · N69830 · Boeing 737924ERSDR REXA20240701488Outflow Valve · inoperativeDURING CLIMBOUT AT ABOUT 19,000 CABIN PRESSURE CAUTION POSTED, LEVELED AIRCRAFT CABIN PRESSURE WAS LOW SHORTLY FOLLOWED BY CABIN PRESSURE WARNING, DESCENDED TO 10K PERFORMED QRH 7,7 WAS ABLE TO CONTROL CABIN SLT IN MAN MODE, REMOVED AND REPLACED OUTFLOW VALVE Jun 25, 2024 · N917XJ · Cndair CL6002D24SDR NACA2024062300002Outflow Valve · openON INITIAL CLIMBOUT FWD EQUIP OVHT EICAS, EQPT COOLING EICAS FWD EQUIP VAL EICAS, AC WASNT PRESSURIZING. DURING WALKAROUND FOUND OVBD EQUIP EXH VALVE OPEN, CLOSED VLV PER MEL PROCEDURES. ACCOMPLISHED CABIN PRESSURE LEAK TEST GOOD. ALL EQUIP EICAS MESSAGES OPS Jun 23, 2024 · N399CM · Boeing 767323SDR 4DPA2024060700001Outflow Valve · failedCREW REPORTED-CRUISING AT FL360 WE FELT OUR EARS POP DUE TO A CABIN PRESSURIZATION ISSUE FOLLOWED BY A MASTER CAUTION AND OBSERVED THE CAB ALT IN RED SHOWING 13500. IMMEDIATELY DECLARED AN EMERGENCY AND BEGAN A RAPID DESCENT TO 14000 WHILE TAKING MANUAL CONTROJun 7, 2024 · N949JX · Emb EMB145LRSDR SIMA20240531001Outflow Valve · faultedLOSS OF PRESSURIZATION. EMERGENCY DECLARED. NO OVRWEIGHT LANDING. NO MASKS DEPLOYED. FLT DIVERTED TO MEM. REF AML 5112186 ITEM 1. PRESSURIZATION CHECK FAILED OUTFLOW VALVE NOT FULLY CLOSING PERFORMED BLEED 2 OPS CHECK PER AMM 36-11-00 OPS CHECK GOOD. PERFORMEDMay 31, 2024 · N286NN · Emb ERJ170200LRSDR SIMA20240529001Outflow Valve · faultedADS1 FAIL / PRESN MAN FAIL / PRESN AUTO FAIL DECLARED EMERGENCY NO INJURIES REPORTED. DEFERRED OUTFLOW VALVE REF MEL 21-27 TROUBLE SHOT IAW FIM 21-31-00 FOUND TO BE A TRANSITORY CONDITION OPS CHECKED OK MEL ITEM RESTOREDMay 29, 2024 · N308LD · Emb ERJ170200LRSDR DALA2024052905603Outflow Valve · faultedATO - AT APPROXIMATELY 80KTS, DUE TO VENT SKIN VALVE FAULT ECAM MESSAGE. CORRECTIVE ACTION: PLACED SKIN AIR OUTLET VALVE (22HQ) ON MEL. LATER, REPLACED VENT SKIN VALVE 15HQ.May 27, 2024 · N347NB · Airbus A319114SDR IPXA2024052294935Outflow Valve · malfunctioned**EMERG DECLARED**CABIN ALT WARNING CAME ON & DESCENDED TO 25000 FT. RAN THE QRH & WARNING WENT OUT THEN OVERBOARD EX VLV OPEN ON STAT MSG. PILOTS REPORTED OUTFLOW VALVE & CABIN PRESSURIZATION WORKED PROPERLY DURING QRH PROCEDURE. PERF PRESSURE CONTROL SYSTEM May 22, 2024 · N405UP · Boeing 75724APFSDR CALA2024052801597Outflow Valve · faultyCABIN LOST PRESSURIZATION AT FL240 LOCKED FOR SIGNOFF ITEM UNLOCKED BY TOMC. POST FLIGHT REPORT AND ECS REPORT 19 ATTACHED. PFR AND ECS REPORT 19 ROTABLE PARTS ADDED ROTABLE PARTS CHANGE WAS INDICATED - TT # 1681100 SN OFF 2338 ROTABLE PARTS ADDED ROTABLE PARTMay 21, 2024 · N801UA · Airbus A319131SDR VNAA2024051311101Outflow Valve · faultedCABIN PRESSURE/ALTITUDE UNCONTROLLABLE IN FLIGHT IN AUTO OR MANUAL / REMOVED AND REPLACED OUTFLOW VALVE IAW CRJ900 AMM 21-32-01-000/400-801, FUNCTIONAL TEST GOOD. PERFORMED OPS TEST OF CPCP IAW CRJ900 AMM 21-33-01-710-801, OPS TEST GOOD. OCF FLIGHT FOUND TO BEMay 11, 2024 · N952LR · Cndair CL6002D24SDR 2024F00135Outflow Valve · failedON 13 MAY 2024, RECEIVED ATLAS REPORT THAT N475MC CREW REPORTED VIA SATCOM DUAL OUTFLOW VALVE FAILURE. FOUND CABIN PRESS CONT RH ICU C/B PULLED AND COLLARED ON P6 PANEL (CABIN PRESS ONTR LH ICU C/B CLOSED). LH ICU C/B SHOULD HAVE BEEN PULLED AND COLLARED IAW TMay 10, 2024 · N475MC · Boeing 74747UFSDR UIEA2024051000375Relay · failedCREW REPORTED VIA SATCOM DUAL OUTFLOW VALVE FAILURE.(<P>FOUND CABIN PRESS CONT RH ICU C/B PULLED AND COLLARED ON P6 PANEL (CABIN PRESS ONTR LH ICU C/B CLOSED). LH ICU C/B SHOULD HAVE BEEN PULLED AND COLLARED IAW THE LH OUTFLOW VALVE DMI 208466 ON 10MAY24 AT NKMay 10, 2024 · N475MC · Boeing 74747UFSDR IPXA2024051099060Motor · failed**ATB** THE FOLLOWING ECAS MSG POPULATED CLIMBING OUT OF SDF CABIN ALT AUTO FOUND FAULT CODE 21227 IN TELEMETRY. LEFT OUT FLOW VALVE A/C MOTOR FAIL.<BR>REMOVED AND REPLACED LEFT OUTFLOW VALVE A/C MOTOR PER AMM 21-31-06May 10, 2024 · N582UP · Boeing 7474R7FSDR YENA2024050800723Outflow Valve · faultedFLT#123, JFK-LAX. (AIRCRAFT PERFORMED AN AIR TURN BACK TO JFK) 'HIGH CA PR CLIMBING TROUGH LEVEL AT 9000 8000 FT. NO OVERWEIGHT LAND SMOOTH 166K; REMOVED AND REPLACED OUTFLOW VALVE PER AMM 21-31-51. OPS CHECK GOOD.;May 7, 2024 · N946JL · Airbus A321231SDR AALA202405067574Outflow Valve · obstructedAIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED INBOUND INTO XNA THE FLIGHT CREW REPORTED THAT DURING CLIMB OUT OF DFW A CABIN PRESSURE SYSTEM 1 ECAM FAULT MESSAGE DISPLAYED. THEN AT THE TOP OF DESCENT AT FL270 CABIN PRESSURE SYSTEM 1 AND 2 FAILED IN AUTO MMay 4, 2024 · N746UW · Airbus A319112SDR NACA2024050300005Outflow Valve · failedENROUTE TO PANC @ FL350 CABIN ALT WARNING WENT OFF. SELECTED MANUAL AC ON PRESS CONTROLLER PER QRX, COULD NOT RECOVER THE CABIN PRESSURE. PRESS WAS AT 60 WITH 10000 FT CABIN ALTITUDE WHEN WARNING WENT OFF. REMOVED AND REPLACED OUTFLOW VALVE ASSY REF B737-300 AMay 3, 2024 · N304KH · Boeing 737330SDR CALA2024041701121Outflow Valve · failedCABIN ALT WARNING AT F270. CABIN ALT INDICATE 13K FT. COMPLIED W/ ACTION ITEMS & QRH. 20 MIN OUT AT 27,000FT GOT WARNING HORN, ALTITTUDE INDICATOR SHOWED 13,000 FT, CREW BROUGHT ACFT DOWN & STABILIZED AT 13,000 FT, BEGAN DESCENT & LANDED. PILOTS USED BOTH OXYApr 14, 2024 · N79541 · Boeing 737824SDR CALA2024041001025Outflow Valve · failedPRESSURIZATION AUTO FAIL LIGHT ILLUMINATED UNABLE TO CONTROLL PERFORMED PRESSURIZATION SYSTEM GROUND TEST PER AMM TASK 21-31-00. BITE TEST SHOWED OUTFLOW VALV FAIL CODE. REMOVED AND REPLACED AFT OUTFLOW VALVE PER AMM 21-31-03. OP CHECK GOOD.Apr 8, 2024 · N29717 · Boeing 737724SDR IPXA2024040292431Motor · failedAT 38,000 MASTER CAUTION CABIN ALTITUDE EICAS MSG. AFTER LANDING CABIN ALT 2 STATUS MSG RAN FIM 21-30 FAULT TREE 802. #2 CABIN PRESSURE CONTROLLER FAULTED AC MOTOR. TECH RECOMMENDED REPLACING AC MOTOR & CABIN PRESSURE CONTROLLER. R&R'D CPC AND OUTFLOW VALVE ACApr 2, 2024 · N472UP · Boeing 75724APFSDR ASAA2024033148708Outflow Valve · inoperativeON CLIMBOUT AT 4000 FT RECEIVED A AUTO PRESSURIZATION FAIL LIGHT, ACCOMPLISHED QRH TASK AT 7000 FT, AUTO FAIL LIGHT DID NOT EXTINGUISH WITH CONTROLLER SET TO ALTN PER QRH AND CABIN CLIMB INDICATOR STILL INDICATED 1000 FT PER MIN WHILE LEVEL AT 7000. GROUNDED -Mar 31, 2024 · N285AK · Boeing 737990ERSDR IPXA2024032543709Outflow Valve · inoperative*EMERGENCY DECLARED* CLIMBING FL 280 TO FL 320, CAB ALT AND RATE TURNED AMBER. CMC READ OUT ACCOMPLISHED . FOUND CMC MESSAGE 21618 STORED IN CMC MEMORY. C/W IFIM 21-26-00-810-831 REV. 202401319B. CMC GROUND TEST OF FWD CARGO OVERBOARD VALVE ACCOMPLISHED IN ACMar 24, 2024 · N620UP · Boeing 7478FSDR DALA2024020201483Outflow Valve · faultedSHIP 3136 - ATO - AT 60KTS FOR A VENT AVNCS SYS FAULT. CORRECTIVE ACTION: BITE FAULTED THE SKIN AIR OUTLET VALVE 22HQ. DEFERRED VALVE PER MEL. LATER, REPLACED AEVC. (LP 4203618)Feb 1, 2024 · N336NB · Airbus A319114SDR CALA2024012900248Outflow Valve · erraticCABIN ALT WARNING AT FL 380. CAB ALT INDICATED + 10000FT. OUT FL OW VALVE SHOWED FULL CLOSED. WHILE PERFORMING OUTFLOW VALVE TEST FOUND VALVE MOVEMENT ERRATIC WHEN COMMANDED. SUGGEST REPLACEMENT OF OUTFLOW VALVE PER 21-31-03-402-010. REMOVED AND REPLACED CABIJan 26, 2024 · N67134 · Boeing 757224SDR NACA2024011500003Outflow Valve · failedCABIN ALT AUTO 2 IN STATUS MSG. REMOVED AND REPLACED OUTFLOW VALVE AS PER B767 AMM 21-31-03. PART INFO UNKNOWN TO TRAX.Jan 15, 2024 · N566NC · Boeing 7673BGSDR YENA2024011700061Outflow Valve · failedFLT#1194, FLL-PVD. (AIRCRAFT PERFORMED ANA IR TURN BACK TO FLL) 'CAB PR SYS 1&2 FAULT DURING CLIMB OUT (5,000 FT); REMOVED AND REPLACED OUTFLOW VALVE ASSY IAW AMM 21-31-51. OPS CHECK OK.'Jan 15, 2024 · N605JB · Airbus A320232SDR SCNA20240130024Outflow Valve · icedDEFECT 723152: - - EXPERIENCED PRESSURE FLUCTUATIONS IN FLIGHT AND EVENTUALLY LOST PRESSURIZATION. RAN CHECKLIST AND WAS UNABLE TO CLOSE OUTFLOW VALVE MORE THAN 40% CLOSED. - - RESOLUTION: FOUND ICE ON OUTFLOW VALVE. REMOVED ICE AS REQUIRED. PERFORMED BITE ONJan 13, 2024 · N7919A · Boeing 7378
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