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 UIEA2018112102677Outflow Valve · warning messageOUTFLOW VALVE EICAS MSG(<P><SPAN>REMOVED / AND REPLACED OUTFLOW VALVE IAW AMM 21-31-03 OPS NORMAL</SPAN><BR DATA-MCE-BOGUS="1" /></P>)Nov 19, 2018 · N662GT · Boeing 76731ASDR AALA2018111549008Outflow Valve · faultedDURING CLIMB OUT THROUGH 8000 TO 9000 FEET, HEARD A LOUD THUD AND AIRFLOW NOISE. AT APPROXIMATELY 13000 FEET, CABIN ALTITUDE EICAS MESSAGE DISPLAYED, FOLLOWED QRC & QRH. EMERGENCY DECLARED, FLIGHT LANDED WITHOUT FUTHER INCIDENT. THE AIRCRAFT WAS GROUNDED. Nov 13, 2018 · N388AA · Boeing 767323SDR AALA201811069011Exhaust Valve · faultyAIRCRAFT WAS GROUNDED. AIRPLANE WOULD NOT PRESSURIZE. A/C RETURNED TO MIA ON ACCOUNT OF A PRESSURIZATION ISSUE. AN EMERGENCY WAS DECLARED, FLIGHT LANDED OVERWEIGHT AND WITHOUT INCIDENT. REPLACED ELECTRONIC EQUIPMENT OVERBOARD EXHAUST VALVE PER AMM 21-58-05. OPNov 2, 2018 · N348AN · Boeing 767323SDR ASAA2018101726543Outflow Valve · failedDURING CLIMB AUTO FAIL AND ALTN LIGHT ILLUMINATED. COMPLIED WITH QRH. NORMAL OPS. GROUNDED - YES. PER FIM TASK 21-31-802 REMOVED AND REPLACED OUTFLOW VALVE REF AMM 21-31-03-000-801. OPS TESTS GOOD.Oct 17, 2018 · N534AS · Boeing 737890SDR AALA2018101227010Outflow Valve · defectiveCRUISE ALTITUDE 37,000 FT, AUTO FAIL LIGHT CAME ON. WHILE RUNNING THE CHECKLIST FOR AUTO FAIL, CABIN PRESSURE WAS UNCONTROLLABLE. CABIN COULD NOT BE CONTROLLED, DIVERTED, CABIN OXYGEN MASKS WERE DEPLOYED, AN EMERGENCY WAS DECLARED AND LANDED WITHOUT INCIDENOct 17, 2018 · N989NN · Boeing 737823SDR SIMA201810154001Bonding Jumper · brokenSUPPLEMENTAL AT 36000 CABIN ALTITUDE WENT TO 10000 GOT A MASTER WARNING. C/A-DEFERRED PRESSURIZATION CONTROL SYS AUTOMATIC MODE (M) CW. MEL 21-17 AUTH 100429DM-C. FOUND BONDING JUMPER TO BE BROKEN AND STUCK IN ELECTRO-PNEUMATIC OUTFLOW VALVE. R&R BONDING JUMPEOct 14, 2018 · N676AE · Emb EMB145LRSDR HALA2018102200279Valve · openAIRCRAFT 381, ATB TO HNL DUE TO THE CABIN ALT ECAM VENT EXTRACT VALVE FULL OPEN AT FL110. CORRECTIVE ACTION: FOUND VENT EXTRACT VALVE IN OPEN POSITION PER ME 21-26-2 (LP 4964629). VALVE NEED TO BE IN NOT FULLY OPEN POSITION PRIOR TO PUSHBACK. RE-POSITIONED VALOct 11, 2018 · N381HA · Airbus A330243SDR HALA2018101100490Valve · openOPEN - ATB, AT FL370 CABIN ALT CLIMBED TO 11,000'. CABIN ALT ECAM VENT EXTRACT VALVE FULL OPEN. FOUND VENT EXTRACT VALVE IN OPEN POSITION, VALVE NEEDS TO BE IN NOT FULLY OPEN POSITION PRIOR TO PUSH BACK REF MPM 21-18-21-20.Oct 10, 2018 · N381HA · Airbus A330243SDR UIEA2018102902410Seal · damagedMISSING MATERIAL OF THE BUTYL SEAL OF THE FLAPPER DOOR AFT ASSEMBLY. REMOVED AND REPLACED SEAL ON FLAPPER DOOR AFT ASSY (OUTFLOW VALVE TOP DOOR SEAL) IAW AMM 51-31-01. (SUP DD 10/27)Sep 27, 2018 · N1321A · Boeing 767306SDR AALA201810019011Motor · defectiveTHE AIRCRAFT WOULD NOT PRESSURIZE AFTER TAKEOFF, A FEW MINUTES AFTER LEVELING AT 9000 FEET THE AFT GALLEY DOOR LIGHT ILLUMINATED. THE AIRCRAFT WAS GROUNDED. PERFORMED PRESSURIZATION CONTROLLER BITE TEST, FOUND A FAULT IN OUTFLOW VALVE. REPLACED BOTH CONTROLSep 27, 2018 · N9628W · Doug MD83SDR AALA201810019008Motor · defectiveTHE AIRCRAFT WOULD NOT PRESSURIZE AFTER TAKEOFF, A FEW MINUTES AFTER LEVELING AT 9000 FEET THE AFT GALLEY DOOR LIGHT ILLUMINATED. THE AIRCRAFT WAS GROUNDED. PERFORMED PRESSURIZATION CONTROLLER BITE TEST, FOUND A FAULT IN OUTFLOW VALVE. REPLACED BOTH CONTROLSep 27, 2018 · N9628W · Doug MD83SDR HNAA2018092800235Outflow Valve · inoperativePDIS 639 21-30 1698241 27SEP18 IAD CLOSE IN CLIMB AT APROZ 15000 FEET CABIN ALTITUDE REACHED ORANGE. HANUAL IMPUT HAD ON EFFECT ALL PRESSURIZATION INDICATIONS WERE DASHES ONCE ON GROUND CREW WAS UNABLE TO OPEN PAX DOOR. CB F8 WAS CYCLED WHICH Sep 27, 2018 · N639AE · Emb EMB145LRSDR ASAA2018090626071Outflow Valve · noisyAFT RIGHT DOOR SQUEALS. NO AFFECT ON PRESSURIZATION OR COMMUNICATION. GROUNDED - YES. FOUND SQUEALS COMING FROM AFT OUTFLOW VALVE. REMOVED AFT OUTFLOW VALVE REF AMM 21-31-03-000-801. INSTALLED NEW AFT OUTFLOW VALVE. OPS CK GOOD. ACCOMPLISHED MANUAL MODE TEST ASep 6, 2018 · N594AS · Boeing 737890SDR DALA2018083105381Relief Valve · popped-ATB- RETURNED TO MSP DUE TO PRESSURIZATION ISSUES. CORRECTIVE ACTION: MTC FOUND LOWER OVER PRESSURE RELIEF VALVE POPPED WITH INSULATION STICKING OUT. RESET PRESSURE RELIEF VALVES AND REPOSITIONED / SECURED INSULATION BLANKET. PERFORMED BITE OF BOTH CABIN PRESAug 30, 2018 · N686DA · Boeing 757232SDR UIEA2018081601723Outflow Valve · faultyOUTFLOW VALVE INDICATION NOT OPERATING SMOOTHLY. TROUBLESHOT OUTFLOW INDICATION IAW SSM 21-31-01. R&R CABIN PRESSURE SELECTOR ASSY & CABIN OUTFLOW VALVE IAW AMM 21-31-03 AND 21-31-01. PERFORMED SATISFACTORY OPS CHECKS IAW AMM 21-31-01 & 21-31-03.Aug 16, 2018 · N1217A · Boeing 767375SDR FDEA201808142030Outflow Valve · erraticCAB PRESS REG 1 FAIL W/#2 ON MEL @ 8000' MAN PRESS SELECTED - VERY SLOW TO RESPOND RTB UPON ENTERING THE COCKPIT, FOUND #1 REGULATOR FAULTED. RESET #1 REGULATOR WOULD QUICKLY FAULT AFTER 30 SECONDS. PER CREW DEBRIEF, FWD OUTFLOW VALVE WAS NEAR CLOSED Aug 14, 2018 · N733FD · Airbus A300B4605RSDR FDEA2018081742030Outflow Valve · malfunctionedCABIN PRESSURE REGULATOR NR 1 FAILED WITH THE NR 2 ON MEL AT 8000 FT MANUAL PRESSURE SELECTED, VERY SLOW TO RESPOND, AIR RETURN. ON ENTERING THE COCKPIT, FOUND THE NR 1 REGULATOR FAULTED. RESET THE REGULATOR, WOULD QUICKLY FAULT AFTER 30 SECONDS. FAug 14, 2018 · N733FD · Airbus A300B4605RSDR IPXA2018081332769Outflow Valve · malfunctionedDURING CRUISE AT 360. CABIN ALTITUDE WARNING LIGHT AND HORN SOUNDED. CABIN ALTITUDE WAS ABOVE 10,000 FT. ACCOMPLISHED QRM PROCEDURE. SELECTING BOTH PACKS GOT CABIN UNDER CONTROL. NO OTHER STATUS OR CAUTIONS.R&R CABIN PRESSURE OUTFLOW VALVE IAW 21-31-03-0Aug 13, 2018 · N451UP · Boeing 75724APFSDR AALA2018081439028Outflow Valve · faultedMAIN CABIN ENTRY DOOR AND ALL SUBSEQUENT ENTRY DOORS CABIN PRESSURE LIGHTS UP WHEN MAIN ENTRY DOOR CLOSED. REPLACED SKIN EXCHANGE VALVE IAW AMM 21-26-55-000-002-A, & AMM 21-26-55-400-002-A. PERFORMED AN OPS CHECK OF AEVC SYSTEM PER AMM 21-26-00-710-001-A. Aug 12, 2018 · N668AW · Airbus A320232SDR AALA2018080129003Outflow Valve · failedDURING CRUISE, RECEIVED A VENT SKIN FAULT AND BLOWER VENT FAULT WHILE ENROUTE. AIRCRAFT DIVERTED. NO EMERGENCY WAS DECLARED. AIRCRAFT WAS GROUNDED. REPLACED THE FIN 22HQ AVIONICS VENTILATION SKIN AIR OUTLET VALVE IAW AMM 21-26-53-400-001-A01.Jul 28, 2018 · N9008U · Airbus A319115SDR P5CA2018072600145Bolt · damagedFOUND CABIN PRESSURE OUTFLOW VALVE CONNECTING ROD BOLT AND NUT DAMAGE AT BULK CARGO. IAW AMM 21-31-03-002-066 REV1 24 RPL THE BOLT AND NUT. CONDITION CHECK NORMAL AND JOB COMPLETED.Jul 25, 2018 · N643GT · Boeing 7673JHFSDR CA180723010Exhaust Valve · failed(CAN) CREW REPORTED AIRCRAFT CABIN PRESSURE WOULD NOT EXCEED 5000. RETURNED TO FIELD. CORRECTIVE ACTION:R&R OVBD EXHAUST VALVE. (TC# 20180723010)Jul 20, 2018 · Cndair CL6002B19SDR SIMA2018071615002Outflow Valve · inoperativeAIRCRAFT WOULD NOT PRESSURIZE DURING FLIGHT. CLIMB WAS HALTED AT 11,500 DECENT TO 10,000. UNPRESSURIZED FLIGHT PROCEDURE APPLIED VIA QRH. INTERROGATED MDC MSG AND FOUND ID B1-006165. REF FIM TASK 21-32-01-810-801. FOUND OUTFLOW VLV INOP. R&R OUTFLOW VALVE IAW Jul 15, 2018 · N528EG · Cndair CL6002C10SDR ASAA2018071325426Outflow Valve · failedOUTFLOW VALVE CHATTERING (OSCILLATING) IN ALL MODES OF FLT, SYS 1, 2 AND SEMI AUTO ALL SAME. + OR -200 FPM. GROUNDED - YES. R&R OF OUTFLOW VALVE PER AMM 21-31-51 OPS CHECK GOOD. OK FOR SERVICE.Jul 13, 2018 · N921VA · Airbus A321253NSDR AALA2018071219020Outflow Valve · faultyDURING FLIGHT, CABIN AND PRESSURE CONTROL INOPERATIVE 1 AND 2. THE OXYGEN MASKS DEPLOYED BUT WERE NOT NEEDED. FLIGHT DESCENDED TO FL 100 AS PRECAUTION. EMERGENCY DECLARED AND DIVERTED. THE AIRCRAFT WAS GROUNDED. REPLACED CABIN PRESSURE OUTFLOW VALVE ACTUAJul 10, 2018 · N388AA · Boeing 767323SDR AALA2018070529047Outflow Valve · malfunctionedAFTER TAKEOFF AT STT - CREW REALIZED CABIN COULD NOT BE PRESSURIZED. BLEADS OFF AND RE-ESTABLISHING PRESSURIZATION, WE NOTICED THE OUTFLOW VALVE WAS NOT CLOSED AND WOULD NOT CLOSE MANUALLY. THEY LEVELED OFF AT 5,000 FEET, DECLARED AN EMERGENCY AND LANDED WITHJul 1, 2018 · N942AN · Boeing 737823SDR AALA201807039004Outflow Valve · faultyAT FL 350 RECEIVED ECAM CAB/PR EXCESS CAB ALT MASTER WARNING ECAM SHOWING SYSTEM 2 AMBER ON LOWER ECAM THAT WOULD NOT STOP WITH THE WARNING. REPLACED CPC 1 AND 2 IAW AMM 21-31-34 AND OUTFLOW VALVE IAW AMM 21-31-51. PERFORMED AN OPS CHECK OF CPC 1 & 2 IAW AMMJun 27, 2018 · N832AW · Airbus A319132SDR AALA201806229007Outflow Valve · malfunctionedAIRCRAFT WAS GROUNDED: FLIGHT RETURNED DFW ACCOUNT PRESSURIZATION PROBLEM FROM A VENT SKIN VALVE FAULT. NO EMERGENCY DECLARED. LANDED OVERWEIGHT WITHOUT INCIDENT. REPLACED SKIN AIR OUTLET VALVE PER AMM 21-16-53 AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECKJun 21, 2018 · N4005X · Airbus A319115SDR ASAA2018061845070Outflow Valve · failedTHE PRESSURIZATION AUTO FAIL LIGHT CAME ON IN FLIGHT. RAN QRH AND THE LIGHT EXTINGUISHED, WHEN ALTERNATE WAS SELECTED. ACFT GROUNDED. ACCOMPLISHED FIM 21-31, TASK 801 DCPC BITE, NR 2 FAULTED OFV LRU FAILED, NR 1 NO FAULTS. DUE TO ACFT HISTORY, REMOVED ANJun 14, 2018 · N453AS · Boeing 737990ERSDR ASAA2018061154927Outflow Valve · failedDURING CLIMB OUT, RECEIVED AN AUTO FAIL LIGHT FOR THE PRESSURIZATION SYSTEM, PERFORMED QRH, WENT TO ALTERNATE MODE, SYSTEM OPERATED NORMALLY. ACFT GROUNDED. REMOVED AND REPLACED THE AFT OUTFLOW VALVE ASSEMBLY IAW AMM 21-31-03. SYSTEM GROUND TESTED GOOD. Jun 5, 2018 · N453AS · Boeing 737990ERSDR ASAA2018060424928Outflow Valve · defectiveDURING CLIMB OUT AT APPROX 17,000FT "AUTO FAIL" LIGHT ILLUMINATED, SELECTED "ALTN" PER QRH. SYSTEM APPEARS TO OPERATE "NORMAL" IN "ALTN" MODE. GROUNDED - YES. PERFORMED FIM 21-31 TASK 827, DCPC BITE PER FIM 21-31 TASK 801, FOUND OFV FAULT, CLEARED FAULT ON DCPJun 4, 2018 · N453AS · Boeing 737990ERSDR SWAA2018052122118Outflow Valve · faultyDECLARED EMERGENCY, AUTO FAIL & ALT ON PRES PANEL ILLUMINATED AT 380 MSL AFTER A FEW SECONDS ALT LIGHT WENT OUT SWITCHED TO MANUAL AUT FLOW VALVE FULL CLOSED CABIN STILL CONTINUED TO CLIMB; O2 MASKS DEPLOYED AFTER OPENING, PAX O2 SWITCH NOTED DASHED LINES ON FMay 13, 2018 · N732SW · Boeing 7377H4SDR GTIA2018042902621Outflow Valve · faultedOUTFLOW VALVE FAULT ECAM AFTER TAKEOFF. R & R THE OUTFLOW VALVE IAW AMM 21-26-53. OPS CHECKED GOOD IAW AMM 21-26-00. OPS TESTED GOOD. NO DEFECTS NOTED.Apr 29, 2018 · N682NK · Airbus A321231SDR REXA2018050100330Outflow Valve · malfunctionedCABIN PRESSURE ALT WARNING DURING CLIMB THROUGH 10,000FT. CABIN ALTITUDE WAS GREATER THAN 10,000. FOLLOWED QRH, DESCENDED DOWN TO 10,000. COULDN'T GET CABIN ALT BELOW 8900 IN MAN MODE. PUSHED THE EMERGENCY DEPRESS IAW QRH. FOUND THE OVERBOARD EXHAUST SOV DEApr 28, 2018 · N836AY · Cndair CL6002B19SDR ASAA2018042024363Outflow Valve · failedCABIN PRESSURE CONTROL SYSTEM FAILURE. ACFT GROUNDED. FAILURE MESSAGE 21-31-51, OUTFLOW VALVE FOR BOTH SYS. REPLACED THE OUTFLOW VALVE 10HL IAW AMM 21-31-51-04. OPS CHECKED GOOD. OK FOR SERVICE.Apr 20, 2018 · N525VA · Airbus A319112SDR ZESA20180417001Outflow Valve · defectiveDURING TAKE OFF, THE AIRCRAFT WOULD NOT PRESSURIZE IN AUTO OR MANUAL MODE DURING CLIMB, AIRCRAFT RETURNED TO DEPARTURE. FOUND THE OUTFLOW VALVE DEFECTIVE.Apr 13, 2018 · N511TH · Cessna 560CESSNASDR QXEA2018032700117Outflow Valve · malfunctionedLEVELING OFF AT FL240, NOTICIED A LOUD HISSING FROM FWD PRESSURE BULKHEAD. DIFFERENTAL GAUGE SHOWED MAX PRESSURE AND PRESSURE CONTROL SHOWED A FAULT. STARTED IMMEDIATE DESCENT AND GAUGES DESCENDED NORMALLY. FAULT LIGHT EXTINGUISHED PASSING THROUGH FL 190. Mar 26, 2018 · N434MK · Bombdr DHC8402SDR SWAA2018032620665Outflow Valve · malfunctionedCABIN ALTITUDE WARNING HORN SOUNDED ALONG WITH CABIN ALTITUDE WARNING LIGHT ILLUMINATED. AN EMERGENCY WAS DECLARED. R & R THE EQUIPMENT COOLING OUTBOARD EXHAUST VALVE IAW MM.Mar 21, 2018 · N7724A · Boeing 7377BDSDR AALA20180310003Outflow Valve · inoperativeAIR INTERRUPT FOR INABILITY TO PRESSURIZE AIRCRAFT DUE TO AFT OUTFLOW VALVE INOPERATIVE. AN. EMERGENCY WAS DECLARED. THE FLIGHT RETURNED TO DEPARTURE WITHOUT FURTHER INCIDENT. AIRCRAFT WAS GROUNDED. REPLACED THE AFT OUTFLOW VALVE IAW AMM 21-31-03 AND PERFOMar 9, 2018 · N726AN · Boeing 777323ERSDR ASAA2018022423668Outflow Valve · malfunctionedOUTFLOW VALVE INDICATE 90% OPEN CRUISING AT FL 330. CABIN ALTITUDE 6200 FT DIFFERENTIAL PRESSURE +7.8. ACFT GROUNDED. CYCLED THE SWITCH POWER, NORMAL INDICATION RESTORED.Feb 24, 2018 · N481AS · Boeing 737990ERSDR SWAA2018022019932Regulator · failedDECLARED EMERGENCY, CABIN ALTITUDE WARNING HORN CAME ON AT FL 380. CABIN ALTITUDE WAS AT 10,000. INITIATED QRC. WENT TO MANUAL MODE. CABIN CONTINUED UP TO 11,000 FEET. INITIATED EMERGENCY DESCENT. R&R NR 1 HIGH STAGE REGULATORY PER AMM.Feb 18, 2018 · N7724A · Boeing 7377BDSDR SWAA2018022019929Regulator · failedDECLARED EMERGENCY, CABIN ALTITUDE WARNING HORN CAME ON AT FL 380. CABIN ALTITUDE WAS AT 10,000. INITIATED QRC. WENT TO MANUAL MODE. CABIN CONTINUED UP TO 11,000 FEET. INITIATED EMERGENCY DESCENT. R&R NR 2 HIGH STAGE REGULATORY PER AMM.Feb 18, 2018 · N7724A · Boeing 7377BDSDR CALA2018021600616Outflow Valve · faultyCLIMBING THRU 10K FT, SUDDEN DRAMATIC CHANGE IN NOISE LEVEL, VERY LOUD WIND SOUND WITH LANDING GEAR MONITOR. AIRCRAFT DID NOT PRESSURIZE NORMALLY. EMERGENCY DECLARED. REPLACED CABIN PRESSURE PANEL ASSY IAW AMM 21-31-01. REPLACED THE OUTFLOW VALVE IAW AMMFeb 16, 2018 · N642UA · Boeing 767322SDR QXEA2018021300057Outflow Valve · malfunctionedCABIN FAILED TO PRESSURIZE IN AUTO MODE, AFTER E & A CHECKLIST, AND SELECTION OF MANUAL MODE ON PRESSURIZATION CONTROLLER, CABIN RATE INITIALLY UNCONTROLLABLE, FLIGHT AT 10,000 FT THEN 9000 FT. AFTER STABILIZED, THE MANUAL PRESSURIZATION WORKED DURING CRUISFeb 10, 2018 · N443QX · Bombdr DHC8402SDR A6WA2018020245606Outflow Valve · out of positionDURING CLIMB OUT, ACFT DID NOT PRESSURIZE. RETURNED TO DEPARTURE. FOUND OVERBOARD EXHAUST SHUT OFF VALVE IN THE INCORRECT POSITION, PERFORMED 14-259. EXHAUST VALVE IN THE CLOSED POS.Feb 1, 2018 · N463AW · Cndair CL6002B19SDR UIEA2018013100159Outflow Valve · malfunctionedOUTFLOW VALVE FAILED TO OPEN IN AUTO AND MANUAL.Jan 31, 2018 · N859GT · Boeing 74787UFSDR AALA201801319021Outflow Valve · false indicationREJECTED TAKEOFF BELOW 80 KNOTS DUE TO THE OUTFLOW VALUE FAULT ECAM MESSAGE. COMPLIED WITH ECAM PROCEDURE AND MAINTENANCE CONTROL PROCEDURE SYSTEM RESET SUCCESSFUL, NO FAULTS AT GATE AND QRH ACCOMPLISHED MESSAGE CLEARED. OPS CHECKED OK IAW AMM 21-26-00.Jan 30, 2018 · N992AU · Airbus A321231SDR ASAA2018011923215Outflow Valve · failedAUTO FAIL LIGHT ILLUMINATED IN CRUISE ALTN CONTROLLER OPERATED NORMALLY. GROUNDED - YES. NR 2 DPCP SHOWS "OFV LRU FAIL" AS AN EXISTING FAULT AND PREVIOUS FLIGHT LEG, REF FIM 21-31 TASK 801. AC CHECKED AND RELEASED PER MEL 21-14C, NR 2 AUTOMATIC CABIN PRESSURIZJan 19, 2018 · N448AS · Boeing 737990ERSDR SIMA20180111001Outflow Valve · deactivatedLOST PRESSURIZATION AT FL 240. REACTVATION PROCEDURE FOR ELECTRONEUMATIC OUTFLOW VALVE PERFORMED. OPS TESTED IAW AMM 21-30-00. NORMAL.Jan 11, 2018 · N902BC · Emb EMB145LRSDR CA180102001Outflow Valve · malfunctioned(CAN) FLIGHT WAS IN CRUISE AT FL350 JUST WEST OF YHZ WHEN THEY HAD AN EICAS MESSAGE (CABIN AUTO INOP). CREW REVERTED TO MANUAL CONTROL OF CABIN. AFTER CONSULTING WITH MOC AND DISPATCH, IT WAS DECIDED TO DIVERT TO YYZ. AFTER TURNING BACK FOR YYZ THE CABIN STDec 31, 2017 · Boeing 767316
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