# JASC 3020: Air Intake Anti/De-Ice System

- Type: JASC system/component code (FAA)
- ATA chapter: 30 Ice and Rain Protection
- Title in the code table: AIR INTAKE ANTI/DE-ICE SYSTEM
- Service difficulty reports: 1,643
- FAA code table: https://www.faa.gov/sites/faa.gov/files/JASC_Code.pdf#page=31
- Page: https://openairdocs.org/jasc/3020

## What it covers

The system and components that eliminate or prevent the formation of ice in or around air intakes such as turbine engine cowling. Does not include engine anti-icing reports filed in JASC code 7510. Includes the electrically heated boot at the air intake lips.

## Service difficulty reports (1,643, newest 50)

- [SDR AALA202606011943](https://openairdocs.org/sdr/AALA202606011943), May 29, 2026: Boeing 7378. RELIEF VALVE. FAILED. AIRCRAFT WAS GROUNDED: #1 ENG ANTI-ICE CAUTION ILLUMINATED IN CLIMB AT FL310. LEFT BLEE,D PRESSURE NORMAL AND NO OTHER A (N314VB)
- [SDR DALA2026032301953](https://openairdocs.org/sdr/DALA2026032301953), Mar 20, 2026: Airbus BD5001A11. TRANSDUCER. FAULTED. DIV - TO ATL DUE TO "L COWL A/ICE FAIL ON" CAUTION MESSAGE. CORRECTIVE ACTION: PERFORMED VISUAL INSPECTION OF ASSOCIATED (N329DU)
- [SDR AALA202602237273](https://openairdocs.org/sdr/AALA202602237273), Feb 20, 2026: Airbus A321253NX. CLAMP. MISSING. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT DIVERTED TO DFW DUE TO THE FLIGHT CREW REPORTING AN AN (N466AN)
- [SDR AALA202602232696](https://openairdocs.org/sdr/AALA202602232696), Feb 20, 2026: Airbus A321253NX. SENSE LINE. LOOSE. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT DIVERTED TO DFW DUE TO THE FLIGHT CREW REPORTING AN AN (N466AN)
- [SDR AALA202602039154](https://openairdocs.org/sdr/AALA202602039154), Feb 2, 2026: Boeing 7378. ANTI-ICE VALVE. FAILED. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: ON TAKEOFF AND DESCENT COWL ANTI-ICE LIGHT ILLUMINATED. AIRCRAF (N305UG)
- [SDR CALA2025112111377](https://openairdocs.org/sdr/CALA2025112111377), Nov 19, 2025: Boeing 757224. ANTI-ICE VALVE. NO DISCREPANCY. TIA VALVE LIGHT WITH EICAS WHEN THRUST IS BELOW 30 N1 ON TAXI NORMAL INDICATION PER CONDITIONS DESCRIBED. NO FURTHER ACT (N14106)
- [SDR IPXA2025111093190](https://openairdocs.org/sdr/IPXA2025111093190), Nov 10, 2025: Boeing 75724APF. ELEC CONNECTOR. DAMAGED. AIR TURN BACK DUE TO RIGHT ENG TAI INOP LIGHT & EICAS MSG. ENG. A/I CHECKLIST WAS RUN W/NO RELIEF. ICING CONDITIONS AT D (N469UP)
- [SDR 2025FA0000385](https://openairdocs.org/sdr/2025FA0000385), Jun 4, 2025: Cirrus SR20. CABLE ASSY. DEBONDED. ALTERNATE AIR DOOR IS CABLE DRIVEN FROM THE COCKPIT. THE ALTERNATE AIR CABLE IS A STANDARD AVIATION CONTROL CABLE WITH A (N226KM)
- [SDR VNAA2025060211101](https://openairdocs.org/sdr/VNAA2025060211101), Jun 1, 2025: Cndair CL6002C10. CONTROL PANEL. FAULTED. L COWL A/ICE CAUTION. / REMOVED AND REPLACED ANTI-ICE CONTROL PANEL IAW CRJ 700 AMM 30-12-10-000/400-801. L CAIV OPS TES (N725PS)
- [SDR DALA2025022301384](https://openairdocs.org/sdr/DALA2025022301384), Feb 22, 2025: Airbus A319114. ANTI-ICE VALVE. INOPERATIVE. SHIP 3162 DISC: SMOKE IN COCKPIT AT THE GATE IN KHOU. ON EXTERNAL POWER ONLY. APU AND ENGINES OFF. TURNED OFF ALL ELECTR (N362NB)
- [SDR SWAA2024111859859](https://openairdocs.org/sdr/SWAA2024111859859), Nov 14, 2024: Boeing 7377BD. CLAMP. LOOSE. ENG 1 OVERHEAT LIGHT AT CLEANUP REDUCED THRUST PER CHECKLIST; LIGHT OUT AFTER APROX 40-50 SECONDS. LANDED REDUCED THRUST (N7715E)
- [SDR WUXA2024091700718](https://openairdocs.org/sdr/WUXA2024091700718), Sep 17, 2024: Textrn 408. LINK. BROKEN. DURING PRE-FLIGHT PILOT NOTICED ON RH ENGINE INERTIAL SEPARATOR DOOR WAS OUT OF POSITION. MAINTENANCE INSPECTION FOUND B (N972LA)
- [SDR DALA2024072707521](https://openairdocs.org/sdr/DALA2024072707521), Jul 26, 2024: Airbus A321271NX. SENSOR. FAULTED. SHIP 5011 - ATB - TO ATL DUE TO ENG 2 HOT AIR LEAK ECAM MESSAGE. CORRECTIVE ACTION: REPLACED ENG #2 NAI TEMPERATURE SENS (N511DE)
- [SDR DALA2024052305454](https://openairdocs.org/sdr/DALA2024052305454), May 22, 2024: Boeing 737924ER. ANTI-ICE VALVE. INOPERATIVE. SHIP 3923 -DIV- DIVERTED TO DTW DUE TO LEFT ENGINE NOSE COWL ANTI-ICE DISAGREE. CORRECTIVE ACTION: REPLACED LEFT NOSE CO (N923DZ)
- [SDR Q5QA20240223003](https://openairdocs.org/sdr/Q5QA20240223003), Feb 23, 2024: Pilats PC1245. DEICE SYSTEM. CRACKED. DURING A SCHEDULED INSPECTION CRACKING WAS FOUND ON THE AFT SIDE OF THE HEATED LIP ASSEMBLY, THE CRACKING WAS IDENTIFIED (N338QD)
- [SDR SWIA202402050002](https://openairdocs.org/sdr/SWIA202402050002), Feb 2, 2024: Cndair CL6002B19. WARNING MESSAGE. ACTIVATED. ANTI ICE DUCT WARNING MESSAGE. (FLIGHT 5050 FILED CLOSED)UPON ARRIVAL TO AIRCRAFT, SPOKE WITH CAPTAIN AND HE MENTIONED T (N471CA)
- [SDR FDEA202401190089](https://openairdocs.org/sdr/FDEA202401190089), Jan 19, 2024: Doug MD11F. ANTI-ICE VALVE. INOPERATIVE. CLIMBING OUT, WE TURNED ON ALL ANTI-ICE SYSTEMS ENTERING CLOUDS. HAD AN AMBER TAIL ANTI- DISAG WARNING N EIS, FOLLOWED S (N591FE)
- [SDR Q5QA20240104001](https://openairdocs.org/sdr/Q5QA20240104001), Jan 4, 2024: Pilats PC1245. PLATE. CRACKED. DURING A SCHEDULED INSPECTION IT WAS NOTED THAT THERE WAS EXHAUST GAS STREAKING IN THE ENGINE INLET COMING FROM THE AFT  (N567QD)
- [SDR SWI2024F00000](https://openairdocs.org/sdr/SWI2024F00000), Dec 30, 2023: Cndair CL6002C10. UNKNOWN. WARNING MESSAGE. L COWL A/I CAUTION MESSAGE WHEN USING THE COWL ANTI ICE. DID THE QRH THOUGH IT CLEARED ON ITS OWN. (FILED CLOSED)UPON AR (N724EV)
- [SDR DALA2023112709727](https://openairdocs.org/sdr/DALA2023112709727), Nov 26, 2023: Airbus A319114. UNKNOWN. UNKNOWN. SHIP 3143 -DIV- TO PHX DUE TO ANTI ICE ENG2 VALVE CLSD ECAM MESSAGE. CORRECTIVE ACTION: T/S. NO FAULTS. FOUND HARD LINE  (N343NB)
- [SDR 2023FA0000787](https://openairdocs.org/sdr/2023FA0000787), Nov 19, 2023: Boeing 73733R. VALVE. INOPERATIVE. ENGINE NUMBER 2 COWL VALVE OPEN LIGHT, BRIGHT BLUE WITH ENGINE ANTI ICE SWITCH ON
- [SDR SWIA2023102706](https://openairdocs.org/sdr/SWIA2023102706), Oct 26, 2023: Cndair CL6002D24. UNKNOWN. WARNING MESSAGE. L COWL A/I CAUTION MESSAGE WHEN SELECTING LEFT COWL ANTI-ICE OFF. COMPLIED WITH QRH, MESSAGE STILL PERSISTED WITH COWL A (N831SK)
- [SDR ASAA2023082844830](https://openairdocs.org/sdr/ASAA2023082844830), Aug 28, 2023: Boeing 737990ER. VALVE. FAULTY. AMBER TAI INDICATION ABOVE #2 N1 GAUGE. GROUNDED - YES. CREW STATED THEY DID NOT OPERATE EITHER ENG COWL ANTI-ICE VALVES (N491AS)
- [SDR CALA2023090402700](https://openairdocs.org/sdr/CALA2023090402700), Aug 21, 2023: Boeing 7879. SHUTOFF VALVE. LOCKED. EAI PRSOV L ADVISORY. LEFT ENGINE ANTI-ICE (EAI) PRSOV FAILURE. FIM TASK REF : 31-90-F8-01A-421B-A. CMC MSG# 3010011 FLI (N23983)
- [SDR ASAA2023081744659](https://openairdocs.org/sdr/ASAA2023081744659), Aug 17, 2023: Boeing 737990ER. UNKNOWN. UNKNOWN. DURING ACCOMPLISHMENT OF TC N2471001 (RIGHT INLET COWL (GV) FOUND #2 ENGINE TAI DUCT CRACKED. GROUNDED - YES. ON DEFERRA (N457AS)
- [SDR ASAA2023081444593](https://openairdocs.org/sdr/ASAA2023081444593), Aug 14, 2023: Boeing 737890. UNKNOWN. UNKNOWN. #1 ENGINE "COWL VALVE OPEN" LIGHT ILLUMINATED BRIGHT BLUE AND AMBER "TAI" ON ENGINE DISPLAY AFTER TURNING ENGINE ANTI-IC (N562AS)
- [SDR IXXA2023081001](https://openairdocs.org/sdr/IXXA2023081001), Aug 10, 2023: Boeing 767323. DUCT. CRACKED. #2 PYLON ACCESS 441AT AFT T.A.I. DUCT SUPPORT COLLAR CRACKED AT BULKHEAD PASS THRU. (N395CM)
- [SDR ASAA2023071243995](https://openairdocs.org/sdr/ASAA2023071243995), Jul 12, 2023: Boeing 737890. UNKNOWN. UNKNOWN. NO.2 ENG ANTI-ICE WHEN TURNING OFF GOES BRIGHT BLUE THEN INSTEAD OF OFF GOES DIM BLUE AND HAS BEEN FLICKERING DIM BLUE T (N586AS)
- [SDR ASAA2023070243836](https://openairdocs.org/sdr/ASAA2023070243836), Jul 2, 2023: Boeing 737890. UNKNOWN. UNKNOWN. ENGINE ANTI ICE COWL VALVE OPEN LIGHT DIM AND FLICKERING IN CLOSED POSITION TAI OPERATES AS NORMALLY INDICATED. GROUNDED (N586AS)
- [SDR ASAA2023062943834](https://openairdocs.org/sdr/ASAA2023062943834), Jun 29, 2023: Boeing 737890. UNKNOWN. UNKNOWN. #2 ENGINE COWL ANTI-ICE INDICATION. GROUNDED - YES. ON DEFERRAL. (N532AS)
- [SDR ASAA2023062443705](https://openairdocs.org/sdr/ASAA2023062443705), Jun 24, 2023: Boeing 737890. UNKNOWN. UNKNOWN. #2 COWL VALVE OPEN LT ON DIM WITH SWITCH OFF,CYCLED SWITCH AND NORMAL INDICATIONS SHOWN LIGHT FLICKERS VERY DIM. GROUNDE (N586AS)
- [SDR ASAA2023061343559](https://openairdocs.org/sdr/ASAA2023061343559), Jun 13, 2023: Boeing 737990ER. VALVE. FAULTY. ENGINE #1 COW VALVE OPEN LIGHT ILLUMINATED WITH TAI AMBER WITH ENGINE ANTI ICE SELECTED ON. GROUNDED - YES. REMOVED AND  (N457AS)
- [SDR SWAA2023061458591](https://openairdocs.org/sdr/SWAA2023061458591), Jun 12, 2023: Boeing 7377H4. SWITCH. INCORRECT. #1 COWL VALVE OPEN LIGHT ILLUMINATED BRIGHT BLUE WITH #1 ENG ANTI ICE SWITCH OFF AMBER TAI LIGHT WAS NOT ILLUMINATED<[01 (N785SW)
- [SDR ASAA2023061043522](https://openairdocs.org/sdr/ASAA2023061043522), Jun 10, 2023: Boeing 737890. UNKNOWN. UNKNOWN. DURING DESCENT COWL VALVE OPEN LIGHT REMAINED BRIGHT BLUE WITH AMBER TAI INDICATION ON #1 ENGINE AFTER ANTI - ICE SWITCH (N593AS)
- [SDR HNAA2023050200149](https://openairdocs.org/sdr/HNAA2023050200149), May 1, 2023: Emb EMB145LR. UNKNOWN. UNKNOWN. WITH E2 A/I VALVE ON MEL E2 A/I FAIL ON EICAS MSG DISPLAYED WHEN IN ICE CONDITION, AND OVERRIDE KNOB IN ENG OR ALL POSIT (N658AE)
- [SDR ASAA2023042242964](https://openairdocs.org/sdr/ASAA2023042242964), Apr 22, 2023: Boeing 737990ER. UNKNOWN. UNKNOWN. ENG ANTI-ICE #2 COWL VALVE OPEN LIGHT (BLUE) STAYS ON WITH SWITCH OFF, WITH CORRESPONDING AMBER TAI ON THE ENGINE DISPLA (N428AS)
- [SDR ASAA2023041642904](https://openairdocs.org/sdr/ASAA2023041642904), Apr 16, 2023: Boeing 7379. ANTI-ICE VALVE. FAULTY. ON TO ROLL AT APPROXIMATELY 60 KTS LEFT COWL ANTI ICE CAUTION ILLUMINATED. REJECTED TAKEOFF ROLL. GROUNDED - YES. REMOVE (N975AK)
- [SDR ASAA2023041342884](https://openairdocs.org/sdr/ASAA2023041342884), Apr 13, 2023: Boeing 737990ER. UNKNOWN. UNKNOWN. ENGINE CONTROL #2 CIRCUIT BREAKER POPPED BEHIND CAPTAIN SEAT ON P18 (A-6) LOCATION (ENGINE ANTI-ICE CONTROL). GROUNDED - (N431AS)
- [SDR ASAA2023041142822](https://openairdocs.org/sdr/ASAA2023041142822), Apr 11, 2023: Boeing 737890. UNKNOWN. UNKNOWN. R COWL ANTI ICE VALVE STUCK IN TRANSIT. AMBER TAI LIGHT. GROUNDED - YES. ACCOMPLISHED A #2 ENGINE COWL TAI VALVE OP-CHEC (N563AS)
- [SDR ASAA2023040142669](https://openairdocs.org/sdr/ASAA2023040142669), Apr 1, 2023: Boeing 737900ER. UNKNOWN. UNKNOWN. ENGINE AND WING CONTROL CIRCUIT BREAKER POPPED. GROUNDED - YES. RESET CB CONTROL PANEL OPS TEST NORMAL REF B737-900 WDM  (N407AS)
- [SDR DALA2023032302265](https://openairdocs.org/sdr/DALA2023032302265), Mar 21, 2023: Airbus A350941. UNKNOWN. UNKNOWN. SHIP 3572 - ATB - DUE TO NBR 1 ENGINE ANTI-ICE VALVE FAILED CLOSED ECAM MESSAGE. CORRECTIVE ACTION: LOCKED PRSOV IN THE  (N572DZ)
- [SDR ASAA2023031942431](https://openairdocs.org/sdr/ASAA2023031942431), Mar 19, 2023: Boeing 737890. UNKNOWN. UNKNOWN. LEFT ENGINE ANTI-ICE VERY SLOW TO CLOSE. GROUNDED - YES. LEFT HAND ENG ANTI-ICE VALVE OPS CHECKED NORMAL AND OPERATED WI (N516AS)
- [SDR ASAA2023030642212](https://openairdocs.org/sdr/ASAA2023030642212), Mar 6, 2023: Boeing 737890. UNKNOWN. UNKNOWN. #1 ENGINE COWL VALVE FAILED IN CLOSED POSITION. BLUE LIGHT STAYS ON IN ON POSITION OF SWITCH. GROUNDED - YES. FLT CREW R (N594AS)
- [SDR ASAA2023030442180](https://openairdocs.org/sdr/ASAA2023030442180), Mar 4, 2023: Boeing 7379. SENSOR. FAULTY. #1 ENGINE ENG ANTI ICE COWL VALVE LIGHT ILLUMINATED TWICE. TURNED OFF WENT OUT. TURNED ON CAME BACK. GROUNDED - YES. CHE (N948AK)
- [SDR ASAA2023030442179](https://openairdocs.org/sdr/ASAA2023030442179), Mar 4, 2023: Boeing 737890. UNKNOWN. UNKNOWN. AFTER START #1 ENGINE ANTI-ICE COWL VALVE LIGHT ILLUMINATED BRIGHT WITH AMBER TAI INDICATION. CYCLED SWITCH AT TAXI POWE (N534AS)
- [SDR ASAA2023022342072](https://openairdocs.org/sdr/ASAA2023022342072), Feb 23, 2023: Boeing 7379. VALVE. FAULTY. LEFT COWL ANTI-ICE MASTER CAUTION ILLUMINATED AT 90 KTS ON TAKEOFF ROLL. EXTINGUISHED ON ITS OWN CLIMBING THROUGH 2000 F (N948AK)
- [SDR ASAA2023022042024](https://openairdocs.org/sdr/ASAA2023022042024), Feb 20, 2023: Boeing 737890. VALVE. FAULTY. #2 ENG ANTI-ICE VALVE DISAGREEMENT LIGHT CAME ON DESPITE REPEATED ATTEMPTS AT DIFFERENT POWER SETTINGS. GROUNDED - YES.  (N513AS)
- [SDR SWIA20230209](https://openairdocs.org/sdr/SWIA20230209), Feb 9, 2023: Cndair CL6002D24. UNKNOWN. WARNING MESSAGE. ANTI ICE DUCT WARNING MESSAGE WHICH TURNED TO A CAUTION MESSAGE DURING APPROACH. ANTI ICE WAS SELECTED ON WHEN MESSAGE O (N162PQ)
- [SDR ASAA2023020841879](https://openairdocs.org/sdr/ASAA2023020841879), Feb 8, 2023: Boeing 7379. VALVE. FAULTY. DURING TAKEOFF WITH POWER SET, ANTI-ICE MASTER CAUTION ILLUMINATED. AFTER A FEW SECONDS THE LIGHT EXTINGUISHED. APPEARED (N938AK)
- [SDR ASAA2023020241775](https://openairdocs.org/sdr/ASAA2023020241775), Feb 2, 2023: Boeing 737890. NOT REPORTED. FAILED. LEFT COWL ANT-ICE FAILED IN CLOSED POSITION. GROUNDED - YES. REMOVED AND REPLACED #1 COWL ANTI-ICE VALVE REF AMM 30-21-1 (N559AS)

All 1,643: https://openairdocs.org/jasc/3020/reports.md

## Other codes in chapter 30

- [JASC 3000](https://openairdocs.org/jasc/3000): Ice/Rain Protection System (535 reports)
- [JASC 3010](https://openairdocs.org/jasc/3010): Airfoil Anti/De-ice System (2,241 reports)
- [JASC 3030](https://openairdocs.org/jasc/3030): Pitot/Static Anti-Ice System (787 reports)
- [JASC 3040](https://openairdocs.org/jasc/3040): Windshield/Door Rain/Ice Removal (3,394 reports)
- [JASC 3050](https://openairdocs.org/jasc/3050): Antenna/Radome Anti-Ice/De-Ice System (22 reports)
- [JASC 3060](https://openairdocs.org/jasc/3060): Propeller/Rotor Anti-Ice/De-Ice System (466 reports)
- [JASC 3070](https://openairdocs.org/jasc/3070): Water Line Anti-Ice System (39 reports)
- [JASC 3080](https://openairdocs.org/jasc/3080): Ice Detection (119 reports)
- [JASC 3097](https://openairdocs.org/jasc/3097): Ice/Rain Protection System Wiring (858 reports)

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