# Service difficulty reports: JASC 2131

A list on [JASC 2131](https://openairdocs.org/jasc/2131.md).

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

Page 1 of 41 · 2,041 reports

- [SDR IPXA2026101437503](https://openairdocs.org/sdr/IPXA2026101437503.md): Controller · faulted · Oct 14, 2026 · N438UP · Boeing 75724APF
  > CABIN ALTITUDE EICAS MSG AT FL300 ORDERED RIGHT PACK TEMP CONTROLLER.
- [SDR CALA2026100820232](https://openairdocs.org/sdr/CALA2026100820232.md): Controller · faulted · Oct 5, 2026 · N77538 · Boeing 737824
  > CABIN PRESSURE DIFF IS ABOVE LIMITS, DESCENDED FROM FL 390 TO 350. REMOVED AND REPLACED CPC NR 2 IAW AMM 21-31-01, OPS CHKD GOOD. INSPECTED BOTH PACK BAYS FOR LEAKS, NONE NOTED. INSPECTED OUTFLOW VALVE AND OVER PRESSURE VALVES. NO DEFECTS NOTED.
- [SDR DALA2026100505503](https://openairdocs.org/sdr/DALA2026100505503.md): Controller · faulted · Oct 4, 2026 · N118DU · Airbus BD5001A10
  > ATB - TO SLC DUE TO A PRESSURIZATION ISSUE SHORTLY AFTER TAKEOFF. REMOVED & REPLACED NUMBER 1 IASC COMPUTER, OPS CHECK GOOD. (LP 9167904; AIRCRAFT WAS GROUNDED)
- [SDR DXTA2026100509995](https://openairdocs.org/sdr/DXTA2026100509995.md): Controller · faulted · Sep 30, 2026 · N679QS · Cessna 680A
  > RECEIVED BLD LEAK R AMBER CAS MESSAGE, RAN QRH, & TRIED TO EXIT ICING CONDS. AFTER, RECEIVED AMBER BLD LEAK L CAS MESS. & ALT AMBER CAS MESS. WITH CABIN ALT IN RAPID CLIMB. INITIATED AN EMERGENCY DESCENT & DIVERTED. ON ARRIVAL, DOWNLOADED ARES, CHKD WIRNG & SE
- [SDR AALA202609248207](https://openairdocs.org/sdr/AALA202609248207.md): Controller · inoperative · Sep 21, 2026 · N917AN · Boeing 737823
  > AIRCRAFT WAS GROUNDED: AUTO PRESSURIZATION AND ALTERNATE FAIL IN FLIGHT. QRH ACCOMPLISHED. AS A PRECAUTION EMERGENCY DECLARED AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED CPC #2 #2 IAW AMM 21-31-01-400-801.
- [SDR AALA202609245051](https://openairdocs.org/sdr/AALA202609245051.md): Controller · inoperative · Sep 21, 2026 · N917AN · Boeing 737823
  > AIRCRAFT WAS GROUNDED: AUTO PRESSURIZATION AND ALTERNATE FAIL IN FLIGHT. QRH ACCOMPLISHED. AS A PRECAUTION EMERGENCY DECLARED AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED CPC'S #1 IAW AMM 21-31-01-400-801.
- [SDR DALA2026091605158](https://openairdocs.org/sdr/DALA2026091605158.md): Controller · faulty · Sep 16, 2026 · N367NW · Airbus A320212
  > ATB - DUE TO CAB PR EXCESS CAB ALT ECAM WARNING FOLLOWED BY CAB PR SYS 2 FAULT. #2 CPC REPLACED. (LP: 9548118, AIRCRAFT WAS GROUNDED)
- [SDR ABXA20260913404](https://openairdocs.org/sdr/ABXA20260913404.md): Controller · defective · Sep 13, 2026 · N362CM · Boeing 767338
  > WHILE CRUISING AT FL370 BETWEEN THE CALIFORNIA AND NEVADA BORDER, THE FO AND CAPT HEARD A BEEPING NOISE COMING FROM THE MAIN DECK CARGO AREA. ABOUT 30 SECONDS AFTER THAT THEY RECEIVED A MASTER WARNING EICAS CABIN ALTITUDE. AT THAT TIME THEY BOTH DONNED OXYGEN
- [SDR DALA2026090905060](https://openairdocs.org/sdr/DALA2026090905060.md): Actuator · faulted · Sep 9, 2026 · N934DZ · Boeing 7379GPER
  > DIV/PRES/DE- DIVERTED TO LAS DUE TO LOSS OF CABIN PRESSURE. FOUND CLAMP ON APU DUCT BOOT IN KEEL BEAM DAMAGED CAUSING LARGE LEAK. REPLACED CLAMP. REPLACED LT RAM AIR INLET ACTUATOR, FLEXIBLE SLEEVE AFT OF LT PACK CK VLV, SEALS BETWEEN LT CONDENSER AND REHEATE
- [SDR I5PA2026090468814](https://openairdocs.org/sdr/I5PA2026090468814.md): Controller · malfunctioned · Sep 4, 2026 · N688SL · Boeing 757230
  > ETOPS SIGNIFICANT REPORT AND EVENT - LEFT PACK TEMP AND CABIN ALTITUDE EICAS MESSAGE. EMERGENCY DESCENT AND DIVERSION TO ROR - PERFORMED BITE CHECK OF PACK TEMP CONTROLLER AND CABIN PRESSURE CONTROLLER PER AMM. NO FAULTS FOUND, ALL MESSAGES CLEARED.
- [SDR I5PA2026083068809](https://openairdocs.org/sdr/I5PA2026083068809.md): Controller · inoperative · Aug 30, 2026 · N688SL · Boeing 757230
  > ETOPS SIGNIFICANT REPORT, CABIN ALT AUTO 2 STATUS MESSAGE. REPLACED CABIN PRESSURE CONTROLLER 2 IAW AMM.
- [SDR IPXA2026082388187](https://openairdocs.org/sdr/IPXA2026082388187.md): Controller · faulted · Aug 23, 2026 · N154UP · Airbus A300F4622R
  > AIR TURN BACK, DURING CLIMB OUT CAB PRESSURE ECAM ADVISORY DISPLAY V/S AT 0. THEREAFTER ECAM CABIN PRESS REG 1 FAULT. FOLLOWED ECAM AND TURNED NR 1 OFF. LEVELED OFF AT 14,000 AND CABIN ALTITUDE OF 14000'. ECAM SHOWED FWD. PERFORMED TECH RECOMMENDED FUNCTIONAL
- [SDR YENA2026072000604](https://openairdocs.org/sdr/YENA2026072000604.md): Controller · faulted · Jul 19, 2026 · N2193J · Airbus A321271NX
  > FLT # 1023, JFK-LAX. (ETOPS) "CABIN PRESSURE SYSTEM 2 FAULT ( AUTOMATIC CABIN PRESSURE CONTROL SYSTEMS SYSTEM 2 (CPC 2))" (SUPPLEMENTAL INFORMATION TO FOLLOW).
- [SDR HNAA2026071300592](https://openairdocs.org/sdr/HNAA2026071300592.md): Controller · faulted · Jul 10, 2026 · N695AE · Emb EMB145LR
  > PRESSURE CLIMBED CONTINUOUSLY IN FLT. PRESS CONTROL AUTO AND MANUAL. R & R DIGITAL RESSURE CONTROLLER IAW AMM 21-31-01 OPS CHECKED IAW AMM 21-31-00, OPS CHECKED GOOD. THIS CLEARS MEL 21-12-3.
- [SDR YENA2026070700514](https://openairdocs.org/sdr/YENA2026070700514.md): Controller · failed · Jul 1, 2026 · N661JB · Airbus A320232
  > FLT# 1009, JFK-SDQ(EMERGENCY DECLARED AIR RETURN).CAB PR SYSTEM 1 FAULT WAS RESET AT GATE BY MX TECH. CAME BACK ON CLIMBOUT; REPLACED CAB PR CONTROLLER SYS 1 (11HL) REF AMM 12-31-34. PERFORMED OPS CHK OF PRESSURE CNTROL AND MONITORING SYS REF AMM 21-31-00. A/C
- [SDR 6CBA2026061126001](https://openairdocs.org/sdr/6CBA2026061126001.md): Controller · malfunctioned · Jun 6, 2026 · N131AF · Pilats PC1247E
  > CREW BEGAN DESCENT FROM FL230 AND AT AROUND FL200 HAD AN ACS LOW INFLOW CAS AND SAW THE CABIN ALTITUDE RISING. REQUESTED AN EMERGENCY DESCENT TO 10000 AND RESET THE ACS SYSTEM. ACS CAME BACK ONLINE NORMALLY AFTER THE DESCENT AND LANDING WAS UNEVENTFUL.
- [SDR VNAA2026060518502](https://openairdocs.org/sdr/VNAA2026060518502.md): Controller · faulted · Jun 3, 2026 · N517AE · Cndair CL6002C10
  > AUTOPRESS FAIL CAUTION IN FLIGHT / REMOVED AND REPLACED CPC 2 IAW AMM 21-31-04-000/400-801-A01-PSA. A/C IS GOOD FOR SERVICE. PERFORMED ANOTHER OPS TEST OF CPC IAW AMM 21-31-04-710-801-A01. OPS TEST GOOD. NO CURENT FAULTS OR DEFECTS NOTE
- [SDR HNAA2026051900385](https://openairdocs.org/sdr/HNAA2026051900385.md): Controller · faulted · May 18, 2026 · N654AE · Emb EMB145LR
  > CABIN ALT 9,000FT WITH ACFT NO PRESSURIZING MEL C13835 21-12-3 PRESS CONTROL AUTO AND MANUAL. PRESS CONTROL AUTO AND MANUAL T/S IRT FIM 21-31-00-810-808-A, R & R DIGITAL PRESS CONTROL IAW AMM 21-31-01. OPS CHECK GOOD ACFT PRESSURIZED ON GROUND, NO DEFECT
- [SDR IXXA202604275038](https://openairdocs.org/sdr/IXXA202604275038.md): Controller · failed · Apr 25, 2026 · N227AZ · Boeing 767323
  > AT FL350, MASTER WARNING, AURAL ALARM, AND CABIN ALTITUDE. CABIN ALTITUDE 10, 000, CABIN ALTITUDE ON AUTO 2 WAS NOT RESPONDING IN MANAUL OR AUTO 1. CREW INITIATED DIVERSION. CREW DECLARED. LANDED WITHOUT INCIDENT. POST FLIGHT WALK AROUND WAS NORMAL. AIRCRAFT W
- [SDR AALA202604143265](https://openairdocs.org/sdr/AALA202604143265.md): Controller · failed · Apr 13, 2026 · N951NN · Boeing 737823
  > AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: AFTER TAKEOFF AUTOFAIL LIGHT ILLUMINATED, AIRCRAFT FAILED TO PRESSURIZE, ALTERNATE MODE INOPERATIVE AS WELL. AIRCRAFT AIR INTERRUPTED BACK TO AND LANDED SAFELY AT RDU. FOLLOWED FIM TASK 21-31-00-810-801.
- [SDR K11A2026040400376](https://openairdocs.org/sdr/K11A2026040400376.md): Controller · failed · Apr 4, 2026 · N730CK · Boeing 7374C9
  > AT FL 310 CABIN ALTITUDE WARNING LIGHT ILLUMINATED AND HORN SOUNDED, FOLLOWED QUICK ACTIONS ITEMS DECLARED EMERGENCY, IMITATED DESCENT, CABIN PRESSURE WAS CONTROLLABLE IN MANUAL MODE BELOW FL 240. TRANSFERRED TO DMI #73000189 CAT C DUE 4/14/2026 IAW B737 KC2 M
- [SDR 3EJA2026071300402](https://openairdocs.org/sdr/3EJA2026071300402.md): Controller · failed · Apr 2, 2026 · N780JS · Cessna 525B
  > PRESSURE CONTROLLER WENT BLANK IN FLIGHT. R & R PRESSURIZATION CONTROLLER.
- [SDR HNAA2026031700218](https://openairdocs.org/sdr/HNAA2026031700218.md): Controller · abnormal · Mar 16, 2026 · N662EH · Emb EMB145LR
  > CABIN ALTITUDE PRESSURE INDICATION DROPPED TO 0 DURING DEPARTURE UP TO 4000FT. R & R DIGITAL CONTROLLER PER MM 21-31-01, OPS CK GOOD.
- [SDR AALA202603117222](https://openairdocs.org/sdr/AALA202603117222.md): Controller · warning message · Mar 9, 2026 · N156AN · Airbus A321231
  > AIRCRAFT WAS GROUNDED: AIRCRAFT RETURNED TO MIA DUE TO THE FLIGHT CREW REPORTING THAT IMMEDIATELY AFTER TAKEOFF RECEIVED CABIN PRESSURE SYSTEM 1 AND SYSTEM 2 ECAM FAULTS. THE FLIGHT CREW ACCOMPLISHED ECAM PROCEDURES BUT WERE UNABLE TO CONTROL PRESSURIZATION SY
- [SDR AALA202603118095](https://openairdocs.org/sdr/AALA202603118095.md): Controller · warning message · Mar 9, 2026 · N156AN · Airbus A321231
  > ACRT WAS GROUNDED: ACRT RETURNED TO MIA DUE TO THE FLT CREW REPORTING THAT AFTER TAKEOFF RECEIVED CABIN PRESSURE SYS 1 & 2 ECAM FAULTS. FLT CREW ACCOMPD ECAM PROCEDURES BUT WERE UNABLE TO CONTROL PRESSURIZATION SYS MANUALLY. SUBSEQUENTLY RECEIVED CABIN PRESSU
- [SDR AALA202603117626](https://openairdocs.org/sdr/AALA202603117626.md): Controller · inoperative · Mar 8, 2026 · N862NN · Boeing 737823
  > AIRCRAFT WAS GROUNDED: AT 360 WE RECEIVED CABIN ALTITUDE AND IMMEDIATELY RAN THE QRC. THE CABIN WAS UNCONTROLLABLE IN MANUAL MODE. WE DEPLOYED THE OXYGEN MASKS WHILE EXECUTING THE CHECKLIST. AIRCRAFT DIVERTED TO TULSA AND FLIGHT LANDED SAFELY WITHOUT INCIDENT.
- [SDR DALA2026030601549](https://openairdocs.org/sdr/DALA2026030601549.md): Controller · faulted · Mar 6, 2026 · N373DX · Airbus A321211
  > DIV - TO DEN DUE TO CAB PR SYS 1 FAULT APPEARING AT FL340, FOLLOWED BY INTERMITTENT EXCESSIVE CABIN ALTITUDE MESSAGES AND LOSS OF CABIN ALTITUDE DISPLAY. REPLACED CPC 1. PASSENGER MASKS WERE NOT DEPLOYED. (LP 7212202)
- [SDR DALA2026022501329](https://openairdocs.org/sdr/DALA2026022501329.md): Controller · faulted · Feb 24, 2026 · N338NW · Airbus A320212
  > DIVERTED TO DTW DUE TO CABIN PRESSURE EXCESS ECAM WARNING. FOUND OUTFLOW VALVE FAULTING ON CPC 1. REPLACED THE OUTFLOW VALVE (10HL). ALSO FOUND AFT CARGO DOOR SEAL DAMAGED, TORN, REPLACED THE SAME. (LP: 8465422)
- [SDR FDEA202602040125](https://openairdocs.org/sdr/FDEA202602040125.md): Controller · faulted · Feb 4, 2026 · N664FE · Airbus A300F4605R
  > AT FLIGHT LEVEL 370 GOT AN ECAM DUE TO HIGH CABIN PRESSURE, SHORTLY AFTER THAT THE NR 2 PRESSURE REGULATOR FAULTED, DONED OXYGEN MASKS STARTED A DECENT AND RAN THE ECAM. ALL PRESSURE REGULATING VALVES SHOWED CLOSED ON ECAM. THE CABIN PRESSURE CONTINUED TO CLI
- [SDR CALA2026020213492](https://openairdocs.org/sdr/CALA2026020213492.md): Controller · faulted · Jan 30, 2026 · N27724 · Boeing 737724
  > CREW ADVISES AUTO PRESS FAIL LIGHT CAME ON AFTER TAKE OFF & MANUAL WOULD NOT OPERATE CORRECTLY. ACP WIRE CHECKS BTWN CPC,CPM & OUTFLOW VALVE, NO DEFECTS FOUND IAW WDM 21-31-23 & WDM 2/1-31-22. R & R AFT OUTFLOW VALVE ASSY IAW AMM 21-31-03, STILL HAS AUTO FA
- [SDR IPXA2026012891803](https://openairdocs.org/sdr/IPXA2026012891803.md): Controller · faulted · Jan 27, 2026 · N415UP · Boeing 75724APF
  > EMERGENCY DECLARED, CABIN ALTITUDE WARNING EICAS ABOVE 100 MSL. A/C @ FL 210/CABIN ALT 11500/ WARNINGS OCCURRED WITH BOTH PACKS RUNNING. REMOVED AND REPLACED #2 AUTO CABIN CONTROL UNIT IAW AMM 21-31-02. OPS CHECK GOOD, PLACARD REMOVED.
- [SDR IPXA2026012791803](https://openairdocs.org/sdr/IPXA2026012791803.md): Warning Message · illuminated · Jan 27, 2026 · N415UP · Boeing 75724APF
  > EMERGENCY DECLARED, CABIN ALTITUDE WARNING EICAS ABOVE 100 MSL. ACFT AT FL 210, CABIN ALT 11500. WARNINGS OCCURRED WITH BOTH PACKS RUNNING. THIS ITEM WAS DEFERRED IAW MEL 21-31-1A, VERIFIED MANUAL OPERATION OF OUTFLOW VALVE.
- [SDR HNAA2026012200071](https://openairdocs.org/sdr/HNAA2026012200071.md): Controller · abnormal · Jan 21, 2026 · N909AE · Emb EMB145LR
  > REJECTED TAKE OFF, DEPRESSURIZATION AUTO FAIL. R & R PRESSURIZATION DIGITAL CONTROLLER IAW EMB AMM 21-31-01, OPS CHECK GOOD IAW AMM 21-31-00-700-802-A AIRCRAFT OK FOR SERVICE.
- [SDR G41A2026012200053](https://openairdocs.org/sdr/G41A2026012200053.md): Controller · faulted · Jan 20, 2026 · N317MP · Lear 60LEAR
  > ON 1/20/2026, LEAR 60 N317MP CYO317 DEPARTED KAPF HEADING TO KSUS. AS THE AIRCRAFT WAS CLIMBING, THE CAPTAIN REPORTED THE AIRCRAFT DID NOT PRESSURIZE. HE SWITCHED TO MANUAL MODE AND STILL DID NOT. HE THEN ELECTED TO DIVERT INTO KRSW. LOCAL MAINTENANCE WAS CALL
- [SDR CALA2026011913077](https://openairdocs.org/sdr/CALA2026011913077.md): Controller · faulty · Jan 15, 2026 · N68807 · Boeing 737924ER
  > CABIN ALTITUDE WARNING IN FLIGHT PERF BITE ON BOTH CABIN PRESS CTLRS. PRESS CTLR #1 SHOWS LEG 00 ONE FAULT. MANUAL MODE FAULT CODE 058. CTLR #2 SHOWS LEG 00 ONE FAULT. MAUAL MODE FAULT CODE 017. PRESS AC AND NO LEAKS NOTED. WAS ABLE TO MAINTAIN CABIN PRESS WIT
- [SDR UIEA2025121401344](https://openairdocs.org/sdr/UIEA2025121401344.md): Controller · faulted · Dec 14, 2025 · N1511A · Boeing 767383
  > AT TOP OF DESCENT, CREW ALTITUDE EICAS MSG. CABIN ALT WENT TO 11,000 FT AFTER DESCENT TO 8000 FT, CABIN PRESS DIFF WAS 0.(<P>FOLLOWED FIM FOR CABIN ALTITUDE BITE CHECK PER FIM 21-31-00. FOUND CABIN ALT CONTROLLER 2 FAULT LOW FLOW. THEN FOLLOWED AMM 36-23-00 AI
- [SDR ABXA2025122315](https://openairdocs.org/sdr/ABXA2025122315.md): Warning Message · false activation · Dec 2, 2025 · N1499A · Boeing 767328
  > ON DESCENT INTO BOG NEAR, BUT PRIOR TO FL250 CABIN ALT MASTER WARNING SIREN, LIGHT AND EICAS MESSAGE. EMERGENCY DECLARED. DONNED 02. AIRCRAFT. EICAS MESSAGE CLEARED NEAR TOUCHDOWN. LANDED WITHOUT FUTHER INCIDENT. BITE TEST PERFORMED ON CABIN CONTROLLERS,
- [SDR CALA2025111411208](https://openairdocs.org/sdr/CALA2025111411208.md): Controller · faulted · Nov 10, 2025 · N899UA · Airbus A319132
  > CABIN PRES WARNING AT FL390. PILOTS STATED THEY SAW A FLUCTUATION OF 2500 FT BUT FELT NO PRESSURE IN EARS.CPC 2 TOOK OVER RIGHT AFTER CPC 1 FAIL. PERFORMED CPC1 OPS CHECK SEVERAL TIMES WITH NO FAILURES. IAW AMM TASK 21-31-34-400-001-A,
- [SDR 2025FA0000746](https://openairdocs.org/sdr/2025FA0000746.md): Controller · defective · Nov 5, 2025 · Lear 60LEAR
  > ON 11/5/2025 DEPARTING KDAL, CLIMBING THROUGH 15,000 FT, THE CAPTAIN REPORTED ABNORMAL CABIN PRESSURE INDICATING A RISE IN CABIN ALTITUDE. THE CAPTAIN REQUESTED A LOWER ALTITUDE. THE CREW THEN RAN THROUGH THE QRH AND WAS ABLE TO STABILIZE CABIN PRESSURE WITH M
- [SDR HNAA2025102700724](https://openairdocs.org/sdr/HNAA2025102700724.md): Controller · faulted · Oct 26, 2025 · N640AE · Emb EMB145LR
  > AUTO PRESS FAIL MEL C29930 21-12-3 PRESS CONTROL AUTO AND MANUAL
- [SDR CALA2025102810669](https://openairdocs.org/sdr/CALA2025102810669.md): Controller · faulted · Oct 25, 2025 · N12225 · Boeing 737824
  > CABIN ALT WARNING AT 290. CREW STATED AT 29000FT CABIN ALTITUDE WARNING DISPLAYED, CABIN CLIMB RATE SHOWING 1000FT PER MINUTE WHILE LEVELED OFF AT 290, DURING DESCENT AT 6000FT CABIN PRESSURE INDICATION SHOWING 30000FT. R & R NR 1 & 2 CABIN PRESSURE CONTROLLER
- [SDR AALA202510238688](https://openairdocs.org/sdr/AALA202510238688.md): Controller · failed · Oct 22, 2025 · N958NN · Boeing 737823
  > AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: DURING CLIMB OUT BETWEEN 9000 AND 10,000 FEET WE GOT CABIN ALTITUDE WARNING LIGHT, PRESSURE WAS SHOWING 1000 AND THEN SHOT UP TO 8500 WITH CABIN ALTITUDE CLIMB RATE OF 4000. AIRCRAFT AIR INTERRUPTED BACK
- [SDR AALA202510238671](https://openairdocs.org/sdr/AALA202510238671.md): Controller · failed · Oct 22, 2025 · N958NN · Boeing 737823
  > AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: DURING CLIMB OUT BETWEEN 9000 AND 10,000 FEET WE GOT CABIN ALTITUDE WARNING LIGHT, PRESSURE WAS SHOWING 1000 AND THEN SHOT UP TO 8500 WITH CABIN ALTITUDE CLIMB RATE OF 4000. AIRCRAFT AIR INTERRUPTED BACK
- [SDR DALA2025102107693](https://openairdocs.org/sdr/DALA2025102107693.md): Controller · faulty · Oct 20, 2025 · N374NW · Airbus A320212
  > SHIP 3274 - ATB - DUE TO CABIN PRESSURE ISSUES AND LOW CABIN DIFFERENTIAL PRESSURE MESSAGE. CREW WAS ABLE TO REGAIN PRESSURE USING MANUAL CONTROL. CORRECTIVE ACTION: REPLACED OUTFLOW VALVE AND CPC 2. (LP: 7368374)
- [SDR HNAA2025101400702](https://openairdocs.org/sdr/HNAA2025101400702.md): Controller · faulted · Oct 12, 2025 · N906AE · Emb EMB145LR
  > IN DESCENT FROM 24,000 FT AT SINK RATE OF 4,000 FT/MIN PRESSURIZATION INDICATION WENT INTO RED UNTIL UNDER 10,000 FT AND MANUAL DUMP. PERFORMED OPS CEHCK IRT AMM TASK 21-31-00-700-802-A. OPS CHECK GOOD. R & R DIGITAL CONTROLLER AS A MAINTENANCE PRECAUTION IRT
- [SDR 2025F00235](https://openairdocs.org/sdr/2025F00235.md): Controller · failed · Oct 2, 2025 · N499GS · Lear 45LEAR
  > N499GS TRIP 8907, 2 OCT 2025, LEG 1 KBNA KMCN. NO PAX ONBOARD. DURING CRUISE AT FL450 THE CABIN BEGAN DEPRESSURIZING. RECEIVED CABIN ALTITUDE AMBER, THEN MASTER WARNING (WITHIN AN APPROXIMATELY ONE MINUTE OF EACH OTHER) AND PERFORMED MEMORY ITEMS FOR THE EMERG
- [SDR JJBA20250930046](https://openairdocs.org/sdr/JJBA20250930046.md): Controller · failed · Sep 26, 2025 · N12201 · Emb EMB145XR
  > DURING CLIMBOUT AUTO PRESS INCREASED UNCONTROLLED, MANUAL MODE OPERATED NORMAL. USING FIM TROUBLESHOOT TO DIGITAL CONTROLLER, DIGITAL CONTROLLER ERROR CODE READER FOUND MULTIPLE FAILURE CODES. REMOVED AND REPLACED DIGITAL CONTROLLER. PERFORMED OPS CHECKS IN AU
- [SDR 3EJA739JS083725](https://openairdocs.org/sdr/3EJA739JS083725.md): Controller · no discrepancy · Aug 27, 2025 · N739JS · Cessna 525B
  > CLIMBING THROUGH 12,000 MSL, THE CABIN ALTITUDE INCREASED SIGNIFICANTLY.NO MESSAGES OR NOTIFICATIONS AND THE MASKS DID NOT DROP. CABIN ALTITUDE STABILIZED AND HELD AT 7000-8000 FEET DURING OUR DESCENT. PERFORMED SATISFACTORY PREFLIGHT SYSTEM TEST OF PRESSURIZ
- [SDR HNAA2025082500579](https://openairdocs.org/sdr/HNAA2025082500579.md): Controller · faulted · Aug 24, 2025 · N695AE · Emb EMB145LR
  > RAPID DEPRESSURIZATION AT 22,000FT USED CREW OXYGEN MASK TO DESCEND TO 10,000FT AND DIVERTED. R & R DIGITAL PRESSURIZATION CONTROLLER IRT AMM 21-31-04. OPS CHECK IRT 21-31-00. OPS CHECK GOOD. A/C OK FOR SERVICE
- [SDR 3EJA20250825001](https://openairdocs.org/sdr/3EJA20250825001.md): Controller · faulted · Aug 8, 2025 · N956JS · Cessna 750
  > CLIMBING THROUGH 4000 FT. OUT OF MYNN AMBER CABIN ALTITUDE MESSAGE ILLUMINATED. AT 10,000 FEET RED CABIN ALTITUDE ILLUMINATED. LITTLE NEEDLE ON PRESSURIZATION NEVER MOVED STAYED AT ZERO. THRU TROUBLE SHOOTING THE SYS REF THE TEXTRON 750 AMM FOUND THE CABIN PRE

Next page: https://openairdocs.org/jasc/2131/reports.md?page=2

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
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
```

This list as a web page: https://openairdocs.org/jasc/2131/reports

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