JASC 3020

Service difficulty reports · 1,644

Reports filed under 3020 · Air Intake Anti/De-Ice System, 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 = '3020'
  ORDER BY difficulty_date DESC"

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SDR 2016F00150Washer · wrong partTHE ANTI-ICE VALVE COME IN OUR MRO FOR A REPAIR. DURING THE INCOMING INSPECTION, A FLAT WASHER IS FOUND AS NOT IAW THE IPC. THE WASHER INSTALLED IS 0.063" WHILE THE MAXIMUM AUTHORIZED IS 0.010". THE ANTI-ICE VALVE WAS REPAIRED BY OUR SHOP IAW VCMM 30-21-42 Jun 28, 2016SDR VNAA2016061400022Anti-Ice Valve · faultyLEFT BLEED DUCT MESSAGE, RED. THE CREW DECLARED AN EMERGENCY, DIVERTED TO NEAREST FIELD AND LANDED WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT, FERRIED TO NEAREST MAINTENANCE FACILITY. R & R THE LT COWL ANTI-ICE VALVE AND PERFORMED CHECKS IAW THE AMM. THE ACJun 14, 2016 · N592NN · Cndair CL6002D24SDR AALA20160615007Anti-Ice Valve · faultyAIRCRAFT WAS GROUNDED. AS THROTTLES WERE ADVANCED FOR TAKEOFF, THE MASTER CAUTION AND COWL ANTI-ICE WARNING LIGHTS ILLUMINATED. TAKEOFF WAS ABORTED AT APPROXIMATELY 20 KNOTS. MAINTENANCE R & R RT ENGINE NOSE COWL ANTI-ICE VALVE IAW AMM 30-21-11. OPS CHECK Jun 14, 2016 · N849NN · Boeing 737823SDR ASAA2016052916878Warning Light · false activationDURING CLIMB THROUGH 9000, COWL ANTI-ICE AND MASTER CAUTION LIGHTS ILLUMINATED ON THE NR 1 ENGINE. CYCLED ENGINE ANTI-ICE SWITCHES OFF. LIGHT EXTINGUISHED. ACCOMPLISHED QRH PROCEDURE, CLIMBING OUT OF 15000, TURNED ENGINE ANTI-ICE ON. OPERATED NORMAL. NO WARNMay 29, 2016 · N565AS · Boeing 737890SDR DALA2016052704187Duct · blownRETURNED TO DEPARTURE DUE TO RT ENGINE FIRE WARNING DURING CLIMB. ENGINE WAS NOT SHUTDOWN. MAINTENANCE FOUND REAR RT ANTI-ICE DUCT BLOWN. ALSO FOUND UPPER COWL DAMAGED. REPLACED RT REAR ANTI-ICE TUBE. UPPER COWL REPLACED ON LP 8019864. LEAK/ENGINE RUNS NMay 26, 2016 · N905DL · Doug MD88SDR IPXA2016051903603Sensor · inoperativeLEVEL 1, ENGINE 2 ANTI-ICE OFF MESSAGE DISPLAYED. R & R NR 2 ENGINE COWL ANTI-ICE MANIF FAILURE SENSING ELEMENT. TESTS OK IAW MM 3022-11/401, 30-22-11-720-801. SENSOR ASSY ON/OFF PN 35512-61 ON SN TAG 1203410B, OFF ELEMENT, X 2, ON/OFF, PN 35519-4-310 ON SN May 18, 2016 · N278UP · Doug MD11FSDR FQAR20160504021Push-Pull Cable · disconnectedDURING PREFLIGHT ENGINE RUN UP, THE PILOT NOTED THE CARB HEAT FOR THE RT ENGINE WAS INOPERATIVE. TECHS FOUND THAT THE CARB HEAT CABLE HAD SNAPPED AT THE AIR BOX. CABLE SNAPPED AT SWAGE WHERE CABLE MEETS ROD END. CABLE HAD BEEN IN SERVICE 1 YEAR. THE DESIGN OFMay 4, 2016 · N292PA · Piper PA44180SDR DXTA2016042606230Bulb · inoperativeLEFT ENG ANTI-ICE COLD AMBER CASS MSG ILLUMINATED. DEFERRED IAW MEL. TROUBLE SHOT DISCREPANCY. R & R INLET ANTI-ICE TEMP SENSOR. COMPLIED WITH OPERATIONAL CHECK AS REQUIRED. OPERATIONS & LEAK CHECK OF INLET TEMP SENSOR & ENG ANTI-ICE PLUMBING GOOD AT THISApr 26, 2016 · N350QS · Cessna 680SOVSDR ASAA2016040716309Valve · failedENGINE ANTI-ICE SWITCH 1 WHEN SWITCH MOVED TO ON THE COWL VALVE OPEN LIGHT STAYED BRIGHT AND TAI INDICATION ON UPPER DU WAS AMBER WHEN SWITCH MOVED TO OFF THE COWL VALVE OPEN LIGHT EXTINGUISHED. ACFT GROUNDED. R & R NR 1 ENGINE INLET COWL THERMAL ANTI-ICE VALVApr 7, 2016 · N557AS · Boeing 737890SDR A6WA201643732Anti-Ice Valve · malfunctionedWHILE IN CRUISE IN ICING CONDITIONS, UPON LEAVING ICING CONDITIONS, SELECTED WING & ENG ANTI-ICE OFF. RECEIVED LT COWL ANTI-ICE CAUTION MSG. COMPLIED WITH QRH DECLARED AN EMER. R & R LT COWL ANTI-ICE VLV IAW AMM 30-22-04. OPERATIONS CHECKED GOOD.Mar 28, 2016 · N410AW · Cndair CL6002B19SDR ASAA2016032516092Valve · failedRIGHT "COWL VALVE OPEN" LIGHT ILLUMINATES INTERMITTENTLY. RIGHT ENGINE N1 AND EGT STAY STEADY. (NO VARIATION). ACFT GROUNDED. R & R NR 2 ENGINE "TAI" VALVE IAW AMM 30-21-11-400-801. OPS AND LEAK CHECK NORMAL.Mar 25, 2016 · N565AS · Boeing 737890SDR AALA20160321005Anti-Ice Valve · faultyAIRCRAFT WAS GNDED. DURING TAKEOFF BOTH MASTER CAUTION LIGHTS ILLUMINATED WITH NO OTHER INDICATIONS. TAKEOFF ABORTED AT APPROX 60 KNOTS. FLIGHT CREW DECIDED TO ATTEMPT TAKEOFF AGAIN DUE TO LACK OF ANY SPECIFIC WARNING. BOTH MASTER LIGHTS AGAIN ILLUMINATED Mar 13, 2016 · N932AN · Boeing 737823SDR UIEA2016021400093Relay · failedLEFT ENGINE ANTI-ICE EICAS ON ARRIVAL. QRH COMPLETED. R & R K650 LT ENG TAI CONT TD RELAY IAW WDM 20-21-11. OPERATIONS CHECKED NORMAL IAW MM 30-21-00.Feb 14, 2016 · N645GT · Boeing 767324SDR SIMA20160214001Transducer · malfunctionedE1 ANTI-ICE FAIL CAUTION ON EICAS FOLLOWED BY E1 ANTI-ICE OVER PRESSURE ADVISORY. R & R NR 1 PRESS TRANSDUCER IAW AMM 30-21-06. OPS CHECKED GOOD.Feb 14, 2016 · N694AE · Emb EMB145LRSDR 2016F00049Indicator · out of toleranceDURING THE REPAIR PROCESS, OVERPRESSURE INDICATOR TEST RESULTS WERE OUT OF TOLERANCE. A SETTING WAS DONE. DURING THE REMOVAL OF THE OVERPRESSURE INDICATOR FOR THE SETTING, SOME WASHERS FOUND ARE NOT IAW CMM 30-21-42 ANS IPL LINKED. ON 6 WASHERS INSTALLED, 4 Jan 29, 2016SDR CA160208007Tab · broken(CAN) WHILE PERFORMING A ENGINE MINOR INSPECTION WE FOUND THE TAB BROKEN OFF ON THE ANTI-ICE BRIDGE WHERE THE CLAMP FOR THE ANTI-ICE BLEED PIPE ATTACHES. THE ANTI- ICE BRIDGE WAS REMOVED FOR A WELDING RAPAIR AND REINSTALLED .Jan 27, 2016 · Cessna 680CESDR A6WA201643503Relief Valve · faultyLEFT COWL, ANTI-ICE FAILED OPEN, COMPLIED WITH QRH, VLV WOULD ONLY CLOSE WHEN LT 14TH STAGE BLEED SOV WAS CLOSED. DIVERTED BACK DUE TO ICING CONDITIONS. COWL ANTI-ICE VLV IAW AMM 30-22-01. OPERATIONS CHECKED GOOD. R & R LT PRESS RELIEF VLV IAW AMM 30-22-04Jan 24, 2016 · N443AW · Cndair CL6002B19SDR SIMA20160124001Anti-Ice Valve · faultyLEFT COWL ANTI-ICE CAUTION MSG ENROUTE AFTER WE CLIMBED THROUGH THE ICE. R & R LT COWL ANTI-ICE VLV IAW AMM 30-22-01. OPERATIONS CHECKED GOOD.Jan 24, 2016 · N520DC · Cndair CL6002C10SDR VNAA2016010500007Clamp · looseON TAKEOFF AT ABOUT 2,000 FT, CREW RECEIVED LT 14 DUCT WARNING MESSAGE. CREW RETURNED TO FIELD AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED AND FOUND CLAMP AT LT ENGINE COWLING ANTI-ICE DUCT INSIDE PYLON LOOSE AND LEAKING. MAINTENANCE REINSTALLED CLAMPJan 5, 2016 · N213PS · Cndair CL6002B19SDR UIEA2015121700758Pressure Switch · corrodedRIGHT ENG INLET, TAI PRESS SWITCH CONNECTOR IS NOT CONNECTED. PLUG & SWITCH SHOW SIGNS OF CORROSION. CLEANED CONNECTOR IAW SWPM 20-60-01. R & R TAI PRESS SWITCH IAW AMM 30-21-01. OPERATIONS CHECK ACCOMPLISHED ON WC A-30-003-02-2.Dec 16, 2015 · N641GT · Boeing 76738ESDR A6WA201543357Anti-Ice Valve · faultyRIGHT COWL ANTI-ICE CAUTION MSG WHEN COWL ANTI-ICE SELECTED OFF. COMPLIED WITH QRH & SELECTED RT 14TH STAGE SOV OFF & MSG CLEARED. R & R RT ENG COWL ANTI-ICE VLV IAW AMM SUP 10-094, OPERATIONS CHECKED GOOD.Dec 15, 2015 · N409AW · Cndair CL6002B19SDR FDEA201512103962Anti-Ice Valve · failedON DESCENT THROUGH 15000 FT, RECEIVED ENG 2 ANTI-ICE LEVEL 3 WITH TRITONE, FOLLOWED QRH & SHUT ENG DOWN FOR LANDING. R & R NR 2 ENG COWL ANTI-ICE MANIFOLD FAILURE SENSING ELEMENTS IAW AMM 30-22-11-4. ALSO R & R NR 2 ENG ANTI-ICE VLV IAW MM 30-22-01-4. ALL Dec 10, 2015 · N572FE · Doug MD11FSDR ASAA2015111313767Warning Message · false activationNR 2 "COWL VALVE OPEN" LIGHT ON. ACFT GROUNDED. RAN NR 2 ENGINE AND CYCLED NR 2 COWL VALVE 3 TIMES. OPS NORMAL.Nov 13, 2015 · N565AS · Boeing 737890SDR SIMA20151026002B-Nut · looseENGINE 1 ANTI-ICE FAIL ON CLIMB AT 12 - 14,000 FT. RAN CHECKLIST E1 INLET AIR OPEN. ASSOCIATED MSGS, NO ICE ANTI-ICE ON, ENG ANTI-ICE OVERPRESS. TROUBLE SHOT IAW FIM 30-21-00-810-803-A, FOUND B NUT ON LT ENG ANTI-ICE DUCT TO BE LOOSE. TIGHTENED B NUT IAW AOct 26, 2015 · N682AE · Emb EMB145LRSDR ASAA2015102313520Anti-Ice System · unknownLEFT ENGINE TIA WHEN TURNED ON INDICATED GREEN "TIA" BY THE N1 GUAGE THEN WENT BLANK. THEN WENT AMBER "TAI". QRH 3-2 PERFORMED. NO AMBER COWL ANTI-ICE LIGHT ON OVERHEAD. VALVE POSITION INDICATION TRANSITIONED FROM BRIGHT BLUE TO DIM BLUE, REMAINED DIM BLUE. Oct 23, 2015 · N589AS · Boeing 737890SDR ASAA2015101613515Anti-Ice Valve · failedON DESCENT, SELECTED ENGINE ICE ON NR 1 ENGINE BLUE "COWL VALVE OPEN" LIGHT ILLUMINATED BRIGHT BLUE. NEVER DID GO DIM, CYCLED SEVERAL TIMES. DID HAVE GREEN "TAI' ON ENGINE DISPLAY. POWER WAS AT IDLE & JUST ABOVE. ACFT GROUNDED. PERFORMED FIM TASK 30-21, TOct 16, 2015 · N562AS · Boeing 737890SDR ASAA2015101313493Valve · failedNR 1 ENGINE ANTI-ICE COWL VALVE OPEN, LIGHT ON WHEN ANTI-ICE SWITCH IS OFF. ACFT GROUNDED. REPLACED NR 1 ENGINE COWL TAI VALVE REF MM 30-21-11-000-801 AND 30-21-11-400-801. PERFORMED OPS TEST, REF MM 30-21-00-710-801, OPS CHECKS NORMAL. ETOPS GROUND VERIFICAOct 13, 2015 · N534AS · Boeing 737890SDR ASAA2015101113458Bearing · wornDURING NR 1 ENGINE INLET AND FAN BLADES DETAILED INSPECTION. FOUND ADJUSTABLE ROD ON TAI VALVE FWD MOUNT, LWR ROD, UPPER END HAS PLAY IN BEARING OF ROD END. ACFT GROUNDED. REPLACED ENGINE NR 1 TAI VALVE FWD MOUNT, LWR ROD, REF NG AMM 30-21-11.Oct 11, 2015 · N588AS · Boeing 737890SDR AALA20151009006Duct · leakingLEFT ENG FIRE INDICATION AT APPROX 1,500 FEET ON TAKEOFF. AN EMER WAS DECLARED & THE FLIGHT RETURNED WITHOUT FURTHER INCIDENT. THE LT ENG WAS NOT SHUTDOWN. ACFT REMOVED FROM SERVICE. R & R LT ENG COWL ANTI-ICE BLEED DUCT IAW AMM 71-10-01. OPERATIONALLY CHOct 9, 2015 · N70425 · Doug DC982SDR ASAA2015100713395Anti-Ice Valve · faultedNR 1 ENGINE ANTI-ICE VALVE OPEN WITH SWITCH SELECTED OFF ON WALK AROUND. ACFT GROUNDED. PERFORMED FIM 30-21, TASK 804, FOUND TO BE AN INTERMITTENT FAULT CLEARED WITH APU AIR.Oct 7, 2015 · N532AS · Boeing 737890SDR CA151002008Heater · fire(CAN) DURING APPROACH, NR 2 ENGINE ADAPT HEAT CAUTION LIGHT CAME ON AND NR 2 INTERLINK LIP HTR CB TRIPPED. AFTER SAFE LANDING, TECHNICIANS NOTICED ODOR OF SMOKE AND OPENED NACELLE ACCESS DOOR 422AL AND DISCOVERED FIRE IN EIAH AREA. A PORTABLE FIRE EXTINGUISHESep 30, 2015 · Bombdr DHC8400SDR FDEA201509232918Valve · malfunctionedDURING CLIMB OUT WE GOT A LEVEL 1 ENG 2 ANTI-ICE OFF. THE MEL WE WERE OPERATING UNDER HAD NR 2 ENG ANTI-ICE VLV SECURED OPEN, THIS INDICATED A POSSIBLE PNEUMATIC LEAK IN NR 2 ANTI-ICE DUCT. DIVERTED & LANDED WITHOUT INCIDENT. R & R NR 2 INLET COWL ANTI-ICE Sep 23, 2015 · N529FE · Doug MD11FSDR ASAA2015091813102Valve · failedDURING TAXI IN, ENGINE NR 2 COWL VALVE OPEN LIGHT ILLUMINATED INTERMITTENTLY WITH SWITCH IN OFF POSITION. LIGHT REMAINED ILLUMINATED AFTER SHUTDOWN. ACFT GROUNDED. R & R NR 2 ENGINE THERMAL ANTICE VALVE IAW AMM 30-21-11. OPS AND LEAK CHECK NORMAL.Sep 18, 2015 · N593AS · Boeing 737890SDR VNAA2015090200002Anti-Ice Valve · failedCREW REPORTED RT COWL ANTI-ICE CAUTION MESSAGE. CREW RAN QRH, MESSAGE PERSISTED IN FLIGHT WITH COWL ANTI-ICE SELECTED OFF. CREW RETURNED TO FIELD AND LANDED WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT, R & R RT ENGINE COWL ANTI-ICE VALVE AND PERFORMED CHECKS Sep 2, 2015 · N244PS · Cndair CL6002B19SDR VNAA2015090100001Pressure Switch · failedCREW REPORTED RT COWL ANTI-ICE CAUTION MESSAGE IN FLIGHT WITH ANTI-ICE SELECTED OFF. CREW RETURNED TO FIELD AND LANDED WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT, R & R RT COWL ANTI-ICE PRESSURE SWITCH AND PERFORMED CHECKS IAW AMM. ACFT RELEASED FOR SERVICE.Sep 1, 2015 · N244PS · Cndair CL6002B19SDR FDEA201508212682Hose · inoperativeLEVEL 1 ENG 2, ANTI-ICE OFF OCCURRED DURING FLIGHT. PERFORMED WING ANTI-ICE TEST & FOUND DP1 SENSOR READOUT 5.33 TOO HIGH. DO LT WING ANTI-ICE SENSE LINE LEAK TEST & FOUND HEAVY AIR LEAKING FROM LOW PORT FITTING OF DP SENSOR. REMOVED THE HOSE FOR CHECK & Aug 21, 2015 · N621FE · Doug MD11FSDR FDEA201508052486Shutoff Valve · malfunctionedAT FL 320, 2 30 HRS INTO FLIGHT, RECEIVED LEVEL 1 ALERT. ENG 2 ANTI-ICE OFF. CONSULTED QRH, REFERENCING EXISTING MEL 30-22-02-03-A. WE WERE CONCERNED WITH POSSIBLE LIKELY DUCK LEAK. LANDED AT NEAREST SUITABLE AIRPORT. TROUBLE SHOT IAW FIM 30-22-07-00. REAug 5, 2015 · N618FE · Doug MD11FSDR CA150729003Anti-Ice Valve · failed(CAN) AIR RETURN DUE TO BLEED OVER HEAT, SUBSEQUENT OVER WEIGHT LANDING BY 15.0. PAN PAN DECLARED. NEW TAI VALVE ASSY INSTALLED IAW AMM 30-21-03-401. OPS CHECK AND LEAK CHECK C/OUT ON GND RUN, SERVICEABLE.Jul 28, 2015 · Boeing 767333SDR CA150728008Adapter · broken(CAN) PILOTS REPORTED "ENG ADPT HEAT 1" CAUTION LIGHT ILLUMINATED DURING FLIGHT AND ALSO A SMELL EVENT LASTING FOR APPROXIMATELY 10 SECONDS AT THE SAME TIME. FLIGHT DIVERTED TO AN ALTERNATE AIRFIELD. TECHNICIANS REPORTED ENGINE INTAKE ADAPTER HEATER EMITS BURNJul 26, 2015 · Bombdr DHC8400SDR CA150721006Anti-Ice Valve · failed(CAN) FLIGHT CREW ADVISED ON CLIMBOUT OF DEPARTURE POINT, THE LT COWL ANTI-ICE VALVE FAILED TO OPEN. AFTER SEVERAL ATTEMPTS TO GET VALVE TO OPEN, FLIGHT RETURNED TO THE DEPARTURE POINT. MAINTENANCE ACTION HAD THE ANTI-ICE VALVE REPLACED AND THE ACFT RETURNEDJul 18, 2015 · Bombdr CL6002D15SDR CALA2015061893989Anti-Ice Valve · failedENGINE ANTI-ICE, EAI, VLV FAILURE TO THE CLOSED POSITION OR EAI CONTROL CARD FAILURE. ADVISORY MSG 3010112 LATCHED ER MODE. R & R RT ANTI-ICE VLV REF.Jun 18, 2015 · N777UA · Boeing 777222SDR ASAA2015052411826Valve · failedON DESCENT, AT 10,000 FT, THE BLUE NR 2 "COWL VALVE OPEN" LIGHT ILLUMINATED WITH THE NR 2 ENGINE ANTI-ICE SWITCH IN THE OFF POSITION. THE LIGHT APPEARED TO FLICKER AND ILLUMINATE STEADY. REMAINED FOR ABOUT 3 MINS WITH AND WITHOUT POWER FROM NR 2 ENGINE. ACFMay 24, 2015 · N565AS · Boeing 737890SDR CA150521003Duct · cracked(CAN) DURING PHASE 3 INSPECTIONS, THE NR 2 ENGINE LOWER FOWARD COWLING, HEATED AIR INLET "HOT-LIP" AFT OVERBOARD VENT DUCT FOUND CRACKED AROUND WELDING AND LARGE HOLEM MATERIAL MISSING. THIS ACFT HAS THE BUTTERFIELD FLOW-THROUGH EXHAUST STC SA2905NM EMBODIED OMay 20, 2015 · Beech B200SDR ASAA2015051411745Warning Light · false activationJUST PRIOR TO TAKE OFF, NOTICED THE NR 2 ENGINE ANTI ICE BLUE LIGHT FLICKER DIM BLUE, CYCLED THE SWITCH ON AND OFF AND THE LIGHTS AND VALVES REACTED NORMALLY. WHEN THRUST LEVERS WENT TO IDLE ON DESCENT THE LIGHT WENT OUT, NO FLICKERING. ACFT GROUNDED. VERIFIEMay 14, 2015 · N565AS · Boeing 737890SDR AALA20150501010Probe · faultyRETURNED TO FIELD DUE TO LT ENGINE TAT PROBE FAILURE. NO EMERGENCY DECLARED & FLIGHT LANDED WITHOUT INCIDENT. REPLACED LT ENGINE TAT PROBE. GOOD OPERATIONAL CHECKS.May 1, 2015 · N678AN · Boeing 757223SDR SIMA20150422003Cap · out of positionE2 ANTI-ICE FAIL DURING PNEUMATIC TEST IN CLIMB TWICE. GAINED ACCESS TO E2 ANTI-ICE VLV & FOUND ANTI-ICE VLV PRESS TRANSDUCER MANIFOLD PRESS TEST PORT CAP NOT INSTALLED. LOCATED & INSTALLED PORT CAP & TIGHTENED. PERFORMED OPERATIONAL CHECK OF E2 ANTI-ICE IAApr 22, 2015 · N902BC · Emb EMB145LRSDR CA150415005Heater · damaged(CAN) DURING CLIMB CREW OBSERVED LT ENGINE ADAPT HEATER FAIL LIGHT. MAINTENANCE FOUND BURN DAMAGE ON THE INTERNAL HEATER.Apr 14, 2015 · Bombdr DHC8400SDR CA150414004Hinge Pin · sheared(CAN) ENGINE ANTI-ICE DIVERTER DOOR HINGE PINS SHEARED. DOOR WAS FOUND LOOSE IN COWL. TECH SUPPORT HAS SEEN THIS IN THE PAST. DAMAGE POSSIBLY CAUSED BY ICE BUILD-UP.Apr 13, 2015 · Piagio P180SDR ASAA2015041211316Anti-Ice Valve · malfunctionedON APPROACH SELECTED ENGINE ANTI-ICE TO ON. THE NR 2 ENGINE ANTI-ICE LIGHT ILLUMINATED BRIGHT BLUE BUT THERE WAS NO CORRESPONDING AMBER TAI LIGHT ABOVE THE N1 INSTRUMENTS. THRUST LEVER ADVANCED TO APPROXIMATELY 50 PERCENT N1 WHICH CAUSED THE COWL VALVE OPEN LApr 12, 2015 · N408AS · Boeing 737990ERSDR ASAA2015041211315Anti-Ice Valve · failedON DESCENT SELECTED ANT-ICE. THE RT COWL VALVE REMAINED OPEN, LIGHT REMAINED BRIGHT BLUE, TAI LIGHT ABOVE, THEN CAME ON AMBER VS GREEN. ADVANCED THROTTLES TO 50 PERCENT AND VALVE DID NOT OPEN. ACFT GROUNDED. REPLACED NR 2 ENGINE COWL TAI VALVE IAW AMM 30-21Apr 12, 2015 · N408AS · Boeing 737990ER
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