JASC 2131

Service difficulty reports · 2,041

Reports filed under 2131 · Cabin Pressure Controller, newest first.

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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 = '2131'
  ORDER BY difficulty_date DESC"

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SDR CALA2025072506921Control Panel · faultedCABIN PRESSURE AUTO FAIL CLIMBING THROUGH 16900FT. HARD TO CONTR OL IN MANUAL MODE REPLACED CONTROL PANEL PER AMM 21-31-02-401.PERFORMED GRD TEST PER AMM 21-31-00 OK FOR SVC.Jul 23, 2025 · N39297 · Boeing 737824SDR VNAA2025072211103Controller · unserviceableCABIN ALT CAUTION MSG AT FL 340 CABIN ALT 8200FT FA REPORTED LOUD WHISTLING FROM AFT GALLEY. REMOVED AND REPLACED CPC2 IAW AMM 21-31-04-000/400-801. OPS CHECK GOOD.Jul 21, 2025 · N636NN · Cndair CL6002D24SDR AALA202507170414Controller · faultedAIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT RETURNED TO LAS DUE TO THE FLIGHT CREW REPORTING THAT WHILE CLIMBING THROUGH FL260 AN EXCESS CABIN ALTITUDE ECAM WARNING DISPLAYED. THE AIRCRAFT LANDED SAFELY AT LAS WITHOUT FURTHER INCIDENT. MAJul 16, 2025 · N426AN · Airbus A321253NXSDR AALA202507174560Controller · faultedAIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT RETURNED TO LAS DUE TO THE FLIGHT CREW REPORTING THAT WHILE CLIMBING THROUGH FL260 AN EXCESS CABIN ALTITUDE ECAM WARNING DISPLAYED. THE AIRCRAFT LANDED SAFELY AT LAS WITHOUT FURTHER INCIDENT. MAJul 16, 2025 · N426AN · Airbus A321253NXSDR AALA202507075469Controller · faultedAIRCRAFT WAS GROUNDED: IN DESCENT, MULTIPLE ECAMS CAB PRESS LO ECAM FAULTS. MAINTENANCE REPLACED #2 CABIN PRESSURE CONTROLLERS IAW AMM 21-31-34.Jul 4, 2025 · N109UW · Airbus A320214SDR AALA202507071642Controller · faultedAIRCRAFT WAS GROUNDED: IN DESCENT, MULTIPLE ECAMS CAB PRESS LO ECAM FAULTS. MAINTENANCE REPLACED #1 CABIN PRESSURE CONTROLLERS IAW AMM 21-31-34.Jul 4, 2025 · N109UW · Airbus A320214SDR SWAA2025070186719Control Module · failedAUTO FAIL LIGHT CAME ON AT FL370. RAN QRH. COULD NOT CONTROL PRESSURIZATION IN MANUAL. REMOVED AND REPLACED PER AMM 21-31-02-401-NG (CABIN PRESSURE CONTROL MODULE - REMOVAL/INSTALLATION - PERMANENT)Jun 30, 2025 · N8584Z · Boeing 7378H4SDR MISR2025061803923Controller · faultedDURING DESCENT PASSING FL360 RED MASTER WARNING AND RED CAS DIFF PRESS ILLUMINATED. DIFF PRESS WAS 9.1 AND WENT AS HIGH AS 9.7. QRH USED AND FL270 DIFF PRESS WENT FROM RED TO GREEN. APU BLEED NOT TRANSFERRED UNTIL ON THE GROUND. CORRECTIVE ACTION: REPLACED CJun 16, 2025 · N217QS · Cndair CL6002B16SDR 2025FA0000399Controller · faultedCRUISING AT 34,000’ BEGAN DESCENT TO 26,000’. WHEN CABIN PRESSURIZATION CONTROLLER MOVED FROM 34,000, CABIN BEGAN A RAPID DEPRESSURIZATION. MOVING BLEED AIR SELECTOR TO L OR R HAD NO EFFECT. CABIN PRESSURIZATION CONTROL WAS REGAINED BY SELECTING EMER ON THE PRJun 10, 2025 · N826AC · Cessna 560CESSNASDR ANCF2025061217Controller · faultedCAB PR 2 FAULT COME ON ECAM - IN ACCORDANCE WITH TSM 21-31-00.810-827-A CABIN PRESSURE CONTROLLER 1 AND 2 WERE REPLACED, TEST SATISFACTORY AND AMM 05-53-00-780-003-A PRESSURIZATION CHECK WAS PERFORMED SATISFACTORYJun 9, 2025 · N422AV · Airbus A319115SDR 3EJA20250609001Knob · out of positionCABIN PRESSURE CONTROLLER WAS CLIMBING FASTER THAN IT SHOULD AND CABIN WAS NOT PRESSURIZING. MAINTENANCE FOUND PRESSURE SOURCE KNOB CLOCKED WRONG. CLOCKED KNOB CORRECTLY. OPS CK GOODJun 6, 2025 · N869JS · Cessna 560XLSDR YENA2025060900574Controller · failedFLT#991, FLL-SJU. (AIRCRAFT DECLARED AN EMERGENCY INTO SJU) 'IN CRUISE AL FL 350- ECAM-CAB PR SYS 2 FAULT; REMOVED AND REPLACED CPC-2 REF AMM 21-31-34 OPS CHECK NORMAL.'Jun 5, 2025 · N649JB · Airbus A320232SDR SWAA2025060478040Outflow Valve · faultyLOSS OF CABIN PRESSURE AT 31;000 ' <[01]. REMOVED AND REPLACED AFT OUTFLOW VALVE REF AMM 21-31-03.; [02] ACCOMPLISHED CONDITIONAL INSPECTION REF 05-51-81. ALSO REPLACED DRAIN VALVES REF AMM 51-41-13; ADJUST AFT CARGO DOOR STOPS REF AMM 52-31-00. REMOVED AND REJun 3, 2025 · N8619F · Boeing 7378H4SDR SWAA2025060478059Drain Valve · faultyLOSS OF CABIN PRESSURE AT 31;000 ' <[01]. REMOVED AND REPLACED AFT OUTFLOW VALVE REF AMM 21-31-03.; [02] ACCOMPLISHED CONDITIONAL INSPECTION REF 05-51-81. ALSO REPLACED DRAIN VALVES REF AMM 51-41-13; ADJUST AFT CARGO DOOR STOPS REF AMM 52-31-00. REMOVED AND RJun 3, 2025 · N8619F · Boeing 7378H4SDR IPXA2025060293029Controller · faultedCABIN ALT R&R'D ACTUATOR REF AMM 21-31-04-404-009, PERFORMED OPERATINAL CHECK OF AUTO 1, AUTO 2, AND MAN, OPS CHECK GOOD. PERFORMED OPERATIONAL CHECK OF AUTO 1, AUTO 2, AND MANUAL, OPS GOOD, REF AMM 21-31-04-404-009, VERIFIED WORK PERFORMED, MSG CLEARED AIRCRAJun 1, 2025 · N419UP · Boeing 75724APFSDR SWAA2025060276727Control Module · inoperativeAIRCRAFT DID NOT PRESSURIZE ON CLIMB OUT. REACHED 15;000 FT. DIFFERENTIAL PRESSURE AT 0. COMFIRMED BLEED AIR ON. <[01] R AND R CABIN PRESSURE CONTROL MODULE PER MM 21-31-02. SYSTEM OPS NORMAL.May 29, 2025 · N8615E · Boeing 7378H4SDR AALA202505296248Controller · faultedAIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT DIVERTED TO ICT DUE TO THE FLIGHT CREW REPORTING AN AIR PACK 1+2 FAULT ECAM MESSAGE WHICH PROGRESSED INTO MASTER WARNING AND AN EMERGENCY DESCENT. CABIN PRESSURE EXCEEDED 10K AND CONTINUED TO CMay 25, 2025 · N174US · Airbus A321211SDR AALA202505298680Controller · faultedAIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT DIVERTED TO ICT DUE TO THE FLIGHT CREW REPORTING AN AIR PACK 1+2 FAULT ECAM MESSAGE WHICH PROGRESSED INTO MASTER WARNING AND AN EMERGENCY DESCENT. CABIN PRESSURE EXCEEDED 10K AND CONTINUED TO CMay 25, 2025 · N174US · Airbus A321211SDR K11A2025042800316Controller · inoperativeAT FL 330 CABIN ALT WARNING HORN SOUNDED. IMMEDIATELY DESCENDED TO FL 230. REQUESTED LOWER, REGAINED CONTROL PASSING FL 180. L1 DOOR SEALS, OUTFLOW VALVE, WATER SEPARATOR CLAMP, MAIN CARGO DOOR SEAL, CLEANING AND SEALING OF FUSELAGE BILGE DRAINS, ALSO REF KAIApr 28, 2025 · N337CK · Boeing 7373Y0SDR ABXA20250410073Controller · malfunctionedDURING CLIMBOUT CABIN AUTO INOP ALT 2 APPEARED, CREW DECLARED EMERGANCY AND PERFORMED (ATB) AND LANDED SAFLEY .MTX GROUNDED A/C AND TROUBLE SHOT. MTX PERFORMED BITE TEST OF #1 AND #2 CONTROLLERS, OPS CHECK GOOD IAW B767 AMM 21-31-00,. PRESSURIZED ACFT IAW Apr 10, 2025 · N783AX · Boeing 767281SDR AALA202504147809Controller · faultedAIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT PERFORMED AN EMERGENCY DESCENT INTO FLL DUE TO THE FLIGHT CREW REPORTING A CABIN PRESSURZATION ISSUE DUE TO ECAM MESSAGES FOR CABIN PRESSURE ALT EXCEEDED 14K FT, CABIN PRESSURE LOW DIFFERNETIAL Apr 8, 2025 · N928AM · Airbus A321231SDR AALA202504148976Controller · faultedAIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT PERFORMED AN EMERGENCY DESCENT INTO FLL DUE TO THE FLIGHT CREW REPORTING A CABIN PRESSURZATION ISSUE DUE TO ECAM MESSAGES FOR CABIN PRESSURE ALT EXCEEDED 14K FT, CABIN PRESSURE LOW DIFFERNETIAL Apr 8, 2025 · N928AM · Airbus A321231SDR CALA2025040303491Controller · failedSTATUS CABIN ALT AUTO 1 PERFORMED CABIN PRESS CONTROLLER BITE PROCEDURE. AC MOTOR FAULT LIGHT CAME ON. REF FIM 21-31 FAULT TREE 803. CABIN ALT AUTO 1 INOP, VERIFIED MANUAL MODE WORK REQUESTING FOR DEFERRAL. STATUS CABIN ALT AUTO 1 CABIN PRESSURE CONTROL SYSTEApr 2, 2025 · N659UA · Boeing 767322SDR TWYA2025032700216Controller · failedREPEATED COMPONENT FAILURE FROM HONEYWELL CPCU (CABIN PRESSURE CONTROLLER) P/N: 2119232-4. WE HAVE RECEIVED MULTIPLE “TESTED” “INSPECTED” “REPAIRED” UNITS THAT HAVE CONSISTENTLY FAILED. ARE REQUEST FOR A NEW COMPONENT HAS BEEN IGNORED. WERE ON OUR THIRD FAILEMar 27, 2025 · N849TW · Pilats PC1247ESDR YENA2025032600329Controller · malfunctionedFLT#1510, SDQ-JFK. 'ON DESCENT -CAB PR EXCESS CAB ALT -DOOR L AFT CABIN -DOOR R AFT CABIN; REF SUBSEQUENT L/P'S 9217, 9218 FOR T/S & R&R OF COMPONENTS, AFTER T/S AND PRECAUTIONARY R&R OF CPC1 SDAC 1 DIFFERENTIAL PRESS SQ. PERFORMED CABIN PRESSURIZATION TEST PEMar 25, 2025 · N603JB · Airbus A320232SDR SIMA20250320001Controller · malfunctionedPRESSURIZATION SYSTEM NEEDS CHECKED. LOST PRESSURIZATION AT FL280. EICAS MESSAGE PRESS AUTO FAULT APPEARED. MAINTAINED PRESSURE AT 10000 FT. EMERGENCY DECLARED. PRESSURIZED A/C IAW AMM 21-31-00. OPS CHECK GOOD T/S IAW FIM 21-31-00-810-806-A, FOUND TO BE TRANSIMar 20, 2025 · N780AH · Emb ERJ170100SUSDR AALA202503202283Controller · inoperativeAN EMERGENCY WAS DECLARED DUE TO: DURING CLIMBOUT AIR CONDITION MASTER CAUTION WITH PRESSURIZATION PANEL AUTO FAIL ILLUMINATED; AIRCRAFT FAILED TO PRESSURIZE, CABIN ALTITUDE WAS CLIMBING WITH AIRCRAFT AND DIFFERENTIAL PRESSURE REMAINED ZERO, WAS ABLE TO USE MAMar 16, 2025 · N947AN · Boeing 737823SDR AALA202503207539Controller · inoperativeAN EMERGENCY WAS DECLARED DUE TO: DURING CLIMBOUT AIR CONDITION MASTER CAUTION WITH PRESSURIZATION PANEL AUTO FAIL ILLUMINATED; AIRCRAFT FAILED TO PRESSURIZE, CABIN ALTITUDE WAS CLIMBING WITH AIRCRAFT AND DIFFERENTIAL PRESSURE REMAINED ZERO, WAS ABLE TO USE MAMar 16, 2025 · N947AN · Boeing 737823SDR HNAA2025031100152Controller · out of adjustON CLIMB AT APROX 8000 FT CABIN ALT FLAGGED RED AND AURAL WARNING CABIN ANNUNCIATED. CREW FOUND MANUAL PRESSURE CONTROLLER KNOB IN FULL DUMP POSITION FACT 10MAR25 11:37 RIC PERFORMED OPS CHECK IN NORMAL MODE AMM 21-31-00-700-801-A PERFORMED CHECK IN AMar 10, 2025 · N659AE · Emb EMB145LRSDR AALA202503089000Controller · faultedAIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AN THE AIRCRAFT DIVERTED TO ATL DUE TO AUTO PRESSURIZATION FAILURE. THE AIRCRAFT LANDED SAFELY AT ATL. AIRCRAFT WAS ON AN MEL FOR CABIN PRESSURE CONTROLLER #2 INOPERATIVE. MAINTENANCE REPLACED THE OUTFLOW VALVEMar 5, 2025 · N300UB · Boeing 7378SDR HNAA2025022400093Controller · defectiveON CLIMB UP UNTIL 8000 FT IN AUTO MODE. A/C DID NOT PRESSURIZE. FACT 22FEB25 03:36 ROA R&R'D DIGITAL CONTROLLER IRW AMM 21-31-01 DUE TO CODE A016 ON DIGITAL CONTROLLER. OPS CK GOODFeb 22, 2025 · N642AE · Emb EMB145LRSDR J7SA2025022100433Controller · malfunctionedDIVERTED DUE TO CPCS LOW AIRFLOW DURING CRUISE TO KRME. CABIN ALTITUDE INITIALLY AT 6,500'. CREW FOLLOWED AFM PROCEDURES, TURNING ON WING ANTI-ICE, WHICH CLEARED THE CAUTION. AFTER CONTACTING MAINTENANCE, CREW SWITCHED TO MANUAL CONTROL AND TURNED ANTI-ICE OFFFeb 15, 2025 · N483FX · Gulstm GIVXG450SDR 3EJA2025030600925Controller · failedCLIMBING THROUGH APPROXIMATELY 10000 FEET, I NOTICED THAT THE CABIN WAS CLIMBING JUST AS FAST AS THE AIRCRAFT. R/R CABIN ALTTUDE PRESSURIZATION CONTROLLER REF 560XL MM 21-30-00Feb 9, 2025 · N836JS · Cessna 560XLSDR 4EZF202502150002Controller · fault messageCABIN PRESS PNL SHOWS FAULT WHEN DETECTED TO 'AUTO' DURING TEST. - MTX ACTION: PERFORMED TROUBLESHOOTING AND REPLACED PRESSURE CONTROLLER IAW SAAB340 AMM 21-31-19-04 OPERATIONAL TEST SATISFACTORY.Feb 9, 2025 · N304AG · Saab 340BSDR DALA2025012400611Controller · inoperativeSHIP 3757 -DIV/PRESS- DIVERTED TO DTW DUE TO BOTH AUTO PRESSURIZATION CONTROLLERS INOP. CORRECTIVE ACTION: MAINTENANCE FOUND OUTFLOW VALVE COVERED IN ICE DUE TO BROKEN WATER LINE. R &R COUPLING ON AFT BRANCH LINE PER B737 AMM 38-10.Jan 24, 2025 · N3757D · Boeing 737832SDR WX0A2025012132275Controller · faulted(AIRCRAFT GROUNDED) (EMERGENCY DECLARED) EXCESSIVE CABIN ALTITUDE ECAM / REMOVED AND REPLACED CABIN PRESSURE CONTROLLER CPC 1 AND CPC 2 IAW AMM 21-31-34-000-001-A AND 21-31-34-400-001-A. OP TEST CHECKED GOOD. REMOVED AND REPLACED BOTH AFT GALLEY SAFETY VALVE RJan 19, 2025 · N271NV · Airbus A320214SDR DALA2024122311952Controller · malfunctionedSHIP 6817 -ATB/PRES/DE- DUE TO CABIN ALT WARNING AND CABIN ALT ABOVE 10K. CREW MANUALLY DEPLOYED OXYGEN MASKS. CORRECTIVE ACTION: FOUND INSULATION BLANKET INGESTED INTO UPPER POSITIVE PRESSURE RELIEF VALVE, R/R POSITIVE PRESSURE RELIEF VALVE, R/R CABIN PRESSURDec 21, 2024 · N723TW · Boeing 757231SDR DALA2024121511718Controller · malfunctionedCREW DECLARED EMERGENCY DUE TO CABIN PRESSURE ISSUES. CORRECTIVE ACTION: ALL SYSTEM TESTS PASSED. NO TROUBLE FOUND. PRECAUTIONARILY REPLACED CPC 2. (LP: 6547426)Dec 13, 2024 · N339NW · Airbus A320212SDR DALA2024120311411Control Valve · abnormalSHIP 3944 -PRESS/DE- DECLARED EMERGENCY DUE TO UNABLE TO MAINTAIN CABIN PRESSURE ON RIGHT PACK. LEFT PACK ON MEL. CORRECTIVE ACTION: REPLACED RIGHT PACK STANDBY TEMP CONTROL VALVE AND LEFT PACK FLOW CONTROL VALVE. BOTH PACKS PASS SINGLE PACK CONFIDENCE CHECKS.Dec 2, 2024 · N944DZ · Boeing 7379GPERSDR SWIA202411290001Controller · malfunctionedL PACK WAS SURGING IN THE CLIMB OUT. ECS PAGE SHOWED L ENG BLEED MOMENTARILY OPENING AND CLOSING ALONG WITH THE GREEN LINE TO THE L PACK MOMENTARILY OFF. PRESSURE CONTROLLER WAS SWAPPED TO PRESS CONT 2 AND INDUCED DIFF PRESS WARNING MESSAGE. INITIATED DECENT TNov 27, 2024 · N689CA · Cndair CL6002D24SDR DALA2024111911073Outflow Valve · abnormalSHIP 3254 - DIV - TO DEN DUE TO LOSS OF AUTO PRESSURE CONTROL SYSTEMS. CPC 1 + 2 FAULT WITH OUTFLOW VALVE FAULT. NO ISSUES WITH MANUAL CONTROL REPORTED. CORRECTIVE ACTION: REPLACED OUTFLOW VALVE. (LP; 6538742)Nov 19, 2024 · N354NW · Airbus A320212SDR HALA20241112321Controller · faultedETOPS-BTB DUE TO ECAM: CAB PR SYS 1 FAULT. SWAPPED CPC 1 & CPC 2. OPS CHK NORMAL PER AMM 21-31-00.Nov 11, 2024 · N230HA · Airbus A321271NSDR CALA2024111102833Controller · failedLOST CABIN PRESSURE CONTROL ON 1 AND 2. MANUAL CONTROL WORKED. CONTACT TOMC WITH FINDINGS EWRMM WORKING ITEM FOLLOWING FIM 21-31 FAULT TREE 803, PERFORMED BITE OF BOTH AUTO AND REPLACED AUTO CABIN PRESSURE CONTROLLER 1 AND 2 REF AMM CABIN PRESSURE CONTROLLER 1Nov 10, 2024 · N665UA · Boeing 767322SDR ANCF20241101022Controller · faultedCAB PRESS SYSTEM 1+2 FAULT AFTER TAKE OFF CAB PRESS SYSTEM 1+2 FAULT IN ACCORDANCE WITH AMM 21-31-34-000/400-001 THE CAMBIN PRESS CONTROLLERS 1 AND 2 WERE REPLACED, BY TEST SATISFACTORY AND I.A.W AMM 05-53-00-780-003-A01 THECABIN PRESSURIZATION WAS PERFORMNov 1, 2024 · N230AC · Airbus A320214SDR AALA202410300912Controller · misinstalledAIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: CABIN PRESSURIZATION ERRATIC. CONSTANT SWINGS IN CABIN RATE OF +/- 4000 FPM; DIFFERENTIAL PRESSURE WOULD INCREASE TO OVER 3.0 AT 3000 FEET AND THEN DEPRESSSURIZE TO 0.5-1.0 AND THEN THE CYCLE WOULD CONTIOct 26, 2024 · N802NN · Boeing 737823SDR GTIA2024102838489Controller · faultedCABIN PRESS 2 FAULT ( AUTOMATIC CABIN PRESSURE CONTROL SYSTEMS (CPC, OUTFLOW VALVE AUTO CHANNELS) SYSTEM 2 )-PERFORMED R&R CABIN PRESSURE CONTROLLER 2 IAW AMM 21-31-34. OPS TEST OF THE PRESSURE CONTROL AND MONITORING OK. THIS ACTION CLEARS DMI# 3466833-1. PLACOct 26, 2024 · N682NK · Airbus A321231SDR SWAA2024102151304Controller · trippedPASSING 16;000; FLIGHT ATTENDANTS IN BACK OF AIRCRAFT REPORTED VIBRATION AND AR NOISE. EAR WERE POPPING AND FELT PRESSRE.<[01] PERFORMED CABIN PRESSURIZATION CHECK IAW AMM 21-00-05.NO LEAKS NOTED. R/R #2 CABIN PRESSURE CONTROLLER (CPC) IAW AMM 21-31-01 AND CABOct 21, 2024 · N8829Q · Boeing 7378SDR AALA202410215476Controller · failedAIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: ON CLIMB OUT AT ROUGHLY 5000 FEET WE HAD THE MC AND EQUIP DOOR ILLUMINATE. IN ADDITION THE AIRCRAFT WAS NOT PRESSURIZING AT 8000 FEET. DESCENDED TO 4000 AND RAN QRH PROCEDURES; AIRCRAFT AIR INTERRUPTED BOct 18, 2024 · N804NN · Boeing 737823SDR GTIA2024100738423Controller · fault messageWHILE AT CRUISE, FL360. THE MASTER WARNING SOUNDER CABIN PRESSURE SYS 2 FAULT. THIS A/C HAS A HISTORY OF CPC FALIURES FLIGHT DESCENDED TO A SAFE ALTITUDE W/O INCIDENT AND RETURNED TO KMCO . REMOVED AND REPLACED NR 2 PRESSURE CONTROLLER IAW AMM 21-31-34. OPS TOct 7, 2024 · N607NK · Airbus A320232SDR DXTA202401100716Controller · defectiveCLIMBING THROUGH 11000FT AMBER CABIN ALTITUDE CAS ILLUMINATED LEVELED AT 13000FT FOLLOWED BY RED CABIN ALTITUDE CAS. IMMEDIATELY DESCENDED TO 10000FT FOLLOWED SHORTLY BY 6000FT. CABIN ALTITUDE REACHED AROUND 11600FT AND QUICKLY CAME BACK DOWN DURING DESCENT. CSep 30, 2024 · N943QS · Cessna 680A
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