Boeing 737-9

Service difficulty reports · 3,497

Newest first. General aviation reporting is voluntary.

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 aircraft_model_key = '7379'
  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 DALA2023011200232None · noneTO CONVERT EX LION AIRCRAFT TO DELTA STANDARDS ACCOMPLISH ALTERATIONS PER VA 97741MA REV IR.Nov 17, 2022 · N958DJ · Boeing 7379 · Standard Practices/StructuresSDR ASAA2022111740855Anti-Ice Valve · not openedLEFT WING ANTI ICE VALVE WOULD NOT OPEN WHEN TURNED ON LEFT VALVE CAUTION LIGHT ANT ANTI ICE VALVE MASTER CAUTION ILLUMINATED WHEN POSITION ON. GROUNDED - YES. REMOVED & REPLACED LH WING ANTI-ICE VALVE REF B737-9 AMM 30-11-11/401. OPS CHECK PASS.Nov 17, 2022 · N977AK · Boeing 7379 · Airfoil Anti/De-ice SystemSDR ASAA2022111740819Lamp · inoperativeR2 EXT EMERGENCY LIGHT INOP. GROUNDED - YES. REMOVED AND REPLACED R2 EXT EMERGENCY LIGHT, REF AMM 33-51-04. OPS CHECKS GOOD.Nov 17, 2022 · N936AK · Boeing 7379 · Emergency LightingSDR ASAA2022111640945Valve · faultedREF T/C 05-020-01 FOUND SMT ENG 1 EEC C1 FAULT LOGGED. CORRELATED MSG CODE 73-42771 & 73-42772. GROUNDED - YES. REMOVED AND REPLACED MODULATED TURBINE COOLING VALVE PER B737-9 AMM 75-23-02. OPS CHECK GOOD. ALL FAULT MESSAGES CLEARED NO CURRENT ACTIVE FAULTS.Nov 16, 2022 · N972AK · Boeing 7379 · Engine Cooling SystemSDR ASAA2022111640800Chip Detector · faultyCFM DIAGNOSTICS IS SHOWING #1 ENGINE ODMS CUMULATIVE CHIP COUNT IS STILL REPORTING ELEVATED AFTER RECENT MAINTENANCE/INSPECTION WITH REPORT OF NO CHIPS. ODMS CHIP COUNT REQUIRES INSPECTION AND RESET. GROUNDED - YES. ACCOMP ODMS SENSOR INSP REF AMM 79-00-00. SENov 16, 2022 · N948AK · Boeing 7379 · Engine Indicating SystemSDR ASAA2022111540824Eec · faultedFAULT LIGHT DURING APU START ATTEMPT. GROUNDED - YES. PERFORMED APU BITE PROCEDURE IAW B737-9 AMM 49-61-00, NO FAULTS FOUND AS PRECAUTIONARY REMOVED AND REPLACED APU ELETRONIC CONTROL UNIT IAW AMM 49-61-12 GROUND VERIFICATION SUCCESSFUL.Nov 15, 2022 · N949AK · Boeing 7379 · APU ControlsSDR ASAA2022111540801Engine · contaminatedCFM IS REPORTING #1 ENGINE (S/N 60A512) ODMS CHIP COUNT HAS EXPERIENCED AN INCREASE INDICATING A POTENTIAL CONTAMINATION OF THE ENGINE OIL SYSTEM OR AN INDICATION FAULT. GROUNDED - YES. ACCOMPLISHED STEP 1 OF THE TSR. PERFORMED #1 ENGINE ODMS SENSOR INSPECTIONov 15, 2022 · N941AK · Boeing 7379 · Engine Oil Distribution (Airframe Furnished)SDR ASAA2022111440827Exciter · faultedON INITIAL START ATTTEMP FOR ENGINE #1, START LEVER WAS RAISED TO IDLE AFTER "MOTORING" EXTINGUISHED, 'SPAR VALVE CLOSED' EXTINGUISHED FOLLOWED BY ' ENG VALVE CLOSED' EXTINGUISHING, WE GOT 0.26FF FOR - 15 SECONDS BEFORE 'ENG VALVE CLOSED' ILLUMINATED AND FF WENov 14, 2022 · N949AK · Boeing 7379 · ExciterSDR ASAA2022111440789Transmitter · dirtyMAINT LIGHT ILLUMINATED AGAIN AFTER LANDING. GROUNDED - YES. INTERROGATED MTX MESSAGES AND FOUND MSG 79-41192 ENG 1 OIL DEBRIS. C/W B737-9 IFIM TASK G79-21-00-810-801, CHECKED ODMS SENSOR, NO DEBRIS FOUND. REMOVED AND REPLACED OIL DEBRIS MONITORING TRANSMITTERNov 14, 2022 · N952AK · Boeing 7379 · Engine Oil Distribution (Airframe Furnished)SDR ASAA2022111440787Warning Message · false activationMAINT LIGHT ON AFTER LANDING. GROUNDED - YES. FOUND LATCH FAULT CODE 79210351 & 79-42862 PERFORMED B737-9 FIM 679-21-00-810-803. INSPECTED ODMS SENSOR IAW B737-9 AMM G79-00-00-210-801-600. NO DEBRIS FOUND ON SENSOR. PERFORMED TEST #7 CHIP COUNT 0. REINSTALLED Nov 14, 2022 · N948AK · Boeing 7379 · Engine Oil Distribution (Airframe Furnished)SDR ASAA2022111440781Fmc · failedTWICE ENROUTE FMC LEFT "FAILED" FOR 60-90 SECONDS. VTK FLAG AND MAP FLAG DISPLAYED ON LEFT ND, FMC MENU ON BOTH MCDU. RIGHT FMC ACTED NORMAL FMC "L" RECOVERED ON ITS OWN WITHOUT QRH INTERVENTION. GROUNDED - YES. PERFORMED B737-9 IFIM 34-61-00-810-918 RESET FMCNov 14, 2022 · N921AK · Boeing 7379 · Flight Management Computing Hardware SystemSDR ASAA2022111340773Sensor · faultedMAINT LIGHT ILLUMINIATED ON LANDING ENG 1 OIL DEBRIS. GROUNDED - YES. REMOVED & REPLACED ODMS SENSOR PER B737-9 AMM 79-21-12. PERFORMED EEC SYSTEM TEST PER AMM 71-00-00-710-806. TEST PASSED. C/W TEST #26 AMM 71-00-00-700-802-600.Nov 13, 2022 · N952AK · Boeing 7379 · Engine Oil System (Airframe Furnished)SDR ASAA2022111240784Apu · faultedAPU FAULT ON START. GROUNDED - YES. OBSERVING APU MDS DATA PAGE, APU ECU DOES NOT INITIALIZE WHEN EITHER APU SWITCH POSITIONED TO ON, OR WHEN MDS MAINT CTL APU SELECTED TO TEST. CYCLED APU ECU C/B, THEN NORMAL OPERATION RESTORED. ACCOMPLISHED APU OPERATIONAL TNov 12, 2022 · N949AK · Boeing 7379 · Airborne Auxiliary Power Unit (APU) SystemSDR CALA2022111403127Skin · handler errorJUST FWD AND BELOW AFT DOOR ABOVE THE STRNGER CLEANING TRUCK STRUCK AIRCRAT CREATING A SIX INCH BY 3/16 DEEP DENT, WITH SOME FLATTENING BELOW THE SPOT DAMAGE TO AFT LEFT SIDE OF FUSELAGE BELOW DOOR 4L, JUST ABOVE STRINGER. DENT MEASURES APPROXIMATELY 6 INCHES Nov 12, 2022 · N37504 · Boeing 7379 · Fuselage Main, Plate/SkinSDR ASAA2022111240749Shutoff Valve · faultedRT BLEED LIGHT IS ON. GROUNDED - YES. FOUND R/H PRSOV FAULT 36-11-051 AND 36-00171. REPLACED #2 ENGINE PRSOV REF B737-9 AMM 36-11-04. PNEUMATIC LEAK CHECK AND OPS CHECK PASSED. PERFORMED LRU REPLACEMENT TEST AND PNEUMATIC ENGINE ON-SYSYEM TEST, ALL TEST PASSENov 12, 2022 · N929AK · Boeing 7379 · Engine Bleed Air SystemSDR ASAA2022111240748Fmc · faultedINFLIGHT HAD MOMENTARY DUAL FMC FAILURE HAD A/P+ A/T LIGHT ILLUMINATES ALL ND DATA GONE, AND VTK DISPLAYED. SYSTEM APPEARED TO FULLY RECOVER AFTER APPROX 40 SEC. GROUNDED - YES. PERFORMED OMF SHOWS NOT ACTIVE FAULTS. FOUND MSG NBR 34-69001. THERE WAS INTERMITTNov 12, 2022 · N976AK · Boeing 7379 · Flight Management Computing Hardware SystemSDR ASAA2022111240743Warning Light · false indicationL2 WINDOW OVERHEAT LIGHT ILLUMINATED ON TAXI OUT. GROUNDED - YES. QRH COMPLETE, LIGHT REMAINS EXTINGUISHED.Nov 12, 2022 · N920AK · Boeing 7379 · Windshield/Door Rain/Ice RemovalSDR DALA2023061204723Unknown · unknown(LOG 2491039) THE PREVIOUS OPERATOR FOUND DAMAGE AT THE FUSELAGE SKIN BETWEEN STA 178 - STA 196.5. DURING H CHECK AT VQQ FOUND 36 BUTTON HEAD RIVETS AROUND EXISTING REPAIR WITH MATERIAL LOSS. MAINTENANCE REPAIRED DAMAGE PER ERA 603719-14.Nov 11, 2022 · N947DZ · Boeing 7379 · Fuselage Main, Plate/SkinSDR ASAA2022111140775Exciter · inoperativeAMBER MAINT LIGHT ON OVERHEAD PANEL ILLUMINATED ON LANDING. GROUNDED - YES. MAINT LIGHT ILLUMINATED DUE TO ENG 2 IGNITION FAULTS. REMOVED & REPLACED RIGHT EXCITER IAW B737-9 AMM 74-11-01. PERFORMED POWER PLANT TESTS 18 & 19 IAW AMM 71-00-00. ALL TESTS GOOD. NONov 11, 2022 · N919AK · Boeing 7379 · ExciterSDR DALA2022111407315Antenna · corroded(LOG 2492150) DURING INSPECTION FOUND CORROSION WAS FOUND ON GCS ADAPTER PLATE AND ANTENNA. CORROSION CORRECTED PER ERA 603695-14.Nov 11, 2022 · N950DZ · Boeing 7379 · Fuselage Main, StructureSDR ASAA2022111040759Exciter · inoperative#2 ENGINE FAILED TO START AFTER PUSHBACK. START LEVER WAS IN IDLE FOR 15 SECONDS WITH NO EGT RISE. GROUNDED - YES. REMOVED & REPLACED RIGHT EXCITER IAW B737-9 AMM 74-11-01. PERFORMED POWER PLANT TESTS 18 &19 IAW AMM 71-00-00. ALL TESTS GOOD. NO MSGS DISPLAYED.Nov 10, 2022 · N919AK · Boeing 7379 · ExciterSDR DALA2022122708389Not Reported · not reportedDURING ENTRY INTO SERVICE WORK PER AA 2500-01852 SECTION 01 ERRORS IN PART NUMBER CALL OUTS WERE DISCOVERED. UTILIZE VA 97739 REV IR WHEN COMPLETING AA 2500-01852 SECTION 01.Nov 9, 2022 · N951DA · Boeing 7379 · Standard Practices/StructuresSDR DALA2022111507372Skin · dentedDURING INSPECTION, FOUND DENT ON FUSELAGE SKIN AT APPROX BS 366.5 ABOVE S24R. MAINTENANCE REPAIRED DAMAGE PER ERA 603203-14.Nov 9, 2022 · N959DV · Boeing 7379 · Fuselage Main, Plate/SkinSDR ASAA2022110940698Nozzle · cokedGE DIAGNOSTICS REPORTS #2 ENGINE TREND DATA SHOWS EXCESS COKING OF THE FUEL NOZZLE MAIN ORIFICES. (FULL SET FUEL NOZZLE REPLACEMENT 737MAX T/C 73-ASA-02) NO EXTENSION ALLOWED 225 CYCLES OR 45 DAYS, WHICHEVER COMES FIRST. CNR 20220925083. GROUNDED - YES. FUEL NNov 9, 2022 · N919AK · Boeing 7379 · Fuel Injector NozzleSDR ASAA2022110940691Fmc · malfunctionedVNAV DISENGAGES AFTER 10 SECONDS OF USE. OBSERVED BEFORE TAKEOFF, CLIMB, AND CRUISE FLIGHT. FMC FUNCTIONS, IRS, GPS, LNAV, AND OTHER AUTOFLIGHT FUNCTIONS ARE NORMAL. APPROACHING THE TOD, WE GOT VERIFY POS: FMC - FMC IN THE SCRATCHPAD. WE DID THE FH 6.110 PROCENov 9, 2022 · N929AK · Boeing 7379 · Flight Management Computing Hardware SystemSDR ASAA2022110840693Satcom · lockedSATCOM LOCK UP. GROUNDED - YES. ASA QRH COMPLETED SATCOM RESET SUCCESSFULLY.Nov 8, 2022 · N929AK · Boeing 7379 · Communications SystemSDR DALA2022111007268Battery Pack · no test(LOG 8779736) DURING INSPECTION FOUND MULTIPLE EMERGENCY LIGHTS INOP. REPLACED 4 EA BATTERIE PACKS PER B737-900 AMM 33-51 CHECKS GOOD.Nov 8, 2022 · N952DJ · Boeing 7379 · Emergency LightingSDR DALA2022111007266Floor Support · gougedDURING INSPECTION FOUND AFT CARGO COMPARTMENT, FLOOR STRUCTURE RAIL, GOUGED AT STA.727L+ 18, RBL8. REPAIRED DAMAGED AFT CARGO COMPARTMENT FLOOR STRUCTURE RAIL FROM BS 727K+1705" TO BS 747+1075" RBL 8 WL 156 PER B737-900ER SRM 53-00-53-2R.Nov 8, 2022 · N958DJ · Boeing 7379 · Fuselage Miscellaneous StructureSDR DALA2022111007265Floor Support · damaged(LOG 2487936) DURING INSPECTION FOUND AFT CARGO COMPARTMENT, FLOOR STRUCTURE RAIL, NUTPLATE HOLE DAMAGED AT STA.727L+3, LBL12. REPAIRED DAMAGED AFT CARGO COMPARTMENT FLOOR STRUCTURE RAIL FROM BS 727K+17.5" TO BS747+1.75" LBL12 WL 156 PER B737900ER SRM 53-00-53Nov 8, 2022 · N958DJ · Boeing 7379 · Fuselage Miscellaneous StructureSDR ASAA2022110840687Sensor · faulted#1 OIL PRESSURE SHOWS 2 PSI WITH ENGINE OFF (CAPTAIN REPORT). GROUNDED - YES. REMOVED AND REPLACED OIL PRESSURE/TEMP SENSOR REF B737-9 AMM 79-32-01.Nov 8, 2022 · N979AK · Boeing 7379 · Engine Oil Indicating SystemSDR DALA2023061204737Unknown · unknown(LOG 2486796) PREVIOUS OPERATOR FOUND GROUND DAMAGE TO THE FUSELAGE SKIN STA 787 - 708 STR 23L-24L. BOEING WAS CONTACTED AND A PERMANENT REPAIR WAS PERFORMED. ACCOMPLISHED VISUAL INSPECTION OF PREVIOUS REPAIR AT STA 787-807 STR 23-24L, WITH DEFECTS NOTED TO NUNov 7, 2022 · N948DZ · Boeing 7379 · Fuselage Main, Plate/SkinSDR ASAA2022110740695Anti-Ice Valve · faultedLEFT VALVE WING ANTI ICE LIGHT REMAINED ILLUMINATED WITH WAI SWITCH IN ON POSITION. GROUNDED - YES. R & R LT WING THERMAL ANTI-ICE VALVE ASSY REF B737-9 AMM 30-11-11. PERFORMED OPS TEST OF WING THERMAL ANTI-ICE VALVE REFAMM 30-11-11. OPS NORMAL NO LEAKS NOTED.Nov 7, 2022 · N931AK · Boeing 7379 · Airfoil Anti/De-ice SystemSDR DALA2022111007263Trunnion · corroded(LOG 8802626) DURING INSPECTION FOUND RH MLG FWD TRUNNION "H" BLOCK SITTING BUSHINGS CORRODED. FABRICATED REPAIR PARTS PER B737-900 SRM 57-20-90, INSTALLED BUSHINGS PER B737-900 SRM 57-20-90.Nov 7, 2022 · N935DH · Boeing 7379 · Fuselage, Landing Gear Attach FittingsSDR ASAA2022110740683Circuit Breaker · faultedAC TRANSER BUS 1 AND 2 WILL NOT POWER ON. (IE NO HYDRAULICS (ELECTRIC) 1 AND 2 NORMAL EQUIP COOLING INOP) OTHER INDICATIONS AS WELL. GROUNDED - YES. FOUND C/B'S FOR EQUIP COOLING FAN BOTH EMDP OPENED ON PANEL P91 AND P92. RESET C/B"S REFERENCE B737-9 AMM 20-60Nov 7, 2022 · N936AK · Boeing 7379 · Electrical Power System WiringSDR ASAA2022110740664Hf Comm · inoperativeHF2 WILL NOT TRANSMIT ON 5547, RECEIVE OK. GROUNDED - YES. C/W TASK B737-9 AMM 23-11-00-730-801, HF COMMUNICATION SYSTEM - SYSTEM TEST, COMM BETWEEN ANOTHER A/C ALL TESTS COMMS NORMAL WITH SAID FREQ. 5547. TRANSMIT AND RECEIVED NORMAL. NO FAULTS FOUND.Nov 7, 2022 · N920AK · Boeing 7379 · HF Communications SystemSDR ASAA2022110740667Anti-Ice Valve · failedWING ANTI-ICE "L VALVE" CAUTION LIGHT ILLUMINATED WHEN SELECTING WING ANTI-ICE ON. GROUNDED - YES. REMOVED AND REPLACED "L VALVE" ON #1 ENG ANTI ICE VALVE PER B737-9 AMM 30-11-11-000-801 AND 30-11-11-400-801. OPS CHECK GOOD PER AMMM 30-11-11-11-710-801.Nov 7, 2022 · N933AK · Boeing 7379 · Airfoil Anti/De-ice SystemSDR ASAA2022110640665Coupler · malfunctionedHF # 1 RECEIVES BUT DOES NOT TRANSMIT, APPEARS TO TUNE NORMALLY. GROUNDED - YES. FAULT CODE 23-21051 ACTIVE ON OMF EXISITING FAULTS. REMOVED AND REPLACED #1 HF COUPLER IAW B737-9 AMM 23-11-61. FAULT CODES NO LONGER PRESENT ON OMF. GROUND VERIFICATION SUCCESSFNov 6, 2022 · N938AK · Boeing 7379 · Communications System WiringSDR ASAA2022110640652Fmc · failedCAPT FMC FAIL WITH VTK AND BOTH MCDU'S BLANK. SYSTEM FIXED ITSELF AND OPERATED NORMALLY BEFORE PERFORMING QRH. GROUNDED - YES. PER B737-9 FIM 34-61-836 FMC OPS NORMAL.Nov 6, 2022 · N926AK · Boeing 7379 · Flight Management Computing Hardware SystemSDR CALA2022110703071Anti-Ice Valve · faultedNUMBER 2 AMBER COWL VALVE LIGHT ILLUMINATED. REMOVED AND REPLACED NO 2 ENG ANTI ICE VALVE. OPS CHECK ANTI ICE VALVE,RECONNECT CONNECTOR DP 303 OVERPRESSURE SENSOR.HPSOV REOPEN THE VALVE PERFORM OPS CHECK,OPS CHECK GOOD.Nov 6, 2022 · N27539 · Boeing 7379 · Engine Anti-Icing SystemSDR ASAA2022110540645Heater · faultedLEFT ELEVATOR PITOT CAUTION LIGHT AND ILLUMINATED AFTER #1 ENGINE WAS STARTED. GROUNDED - YES. IAW B737-9 AMM 27-31-94 LEFT ELEVATOR PITOT PROBE REMOVED/REPLACED. SYSTEM LEAKED CHECKED OK IAW AMM 27-31-17 AND HEATER TESTED OK IAW AMM 30-31-00.Nov 5, 2022 · N934AK · Boeing 7379 · Pitot/Static Anti-Ice SystemSDR ASAA2022110440649Anti-Ice Valve · failedLEFT WING ANTI-ICE FAILED CLOSED. GROUNDED - YES. REMOVED AND REPLACED L/H WING ANTI-ICE REF B737-9 AMM 30-11-11 OPS CHECK GOOD.Nov 4, 2022 · N948AK · Boeing 7379 · Airfoil Anti/De-ice SystemSDR ASAA2022110440648Anti-Ice Valve · faultedWHEN WING ANTI-ICE TURNED ON, L VALVE LIGHT ILLUMINATED. GROUNDED - YES. REMOVED AND REPLACED L/H WING ANTI-ICE VALVE REF B737-9 AMM 30-11-11.Nov 4, 2022 · N919AK · Boeing 7379 · Airfoil Anti/De-ice SystemSDR ASAA2022110340661Starter · making metalOVERHEAD "MAINT" LIGHT ILLUMINATED AT TOUCHDOWN. GROUNDED - YES. FOUND ENG #1 OIL DEBRIS STS MSG. PERFORMED B737-9 AMM TASK 79-00-00-220-801-600, ENGINE OIL SYSTEM DETAIL DIMENSIONAL CK, ENGINE #1 STARTER MAGNETIC PLUG REVEALED SMALL METAL SHAVINGS, ODMS SENNov 3, 2022 · N952AK · Boeing 7379 · Engine StarterSDR ASAA2022110340594Hf Comm · faultedHF #1 WINDOWS FAIL FAIL. GROUNDED - YES. RESET #1 HF C/B CAPTAIN RTP FAIL LIGHTS EXTINGUISHED IAW B737-9 AMM 20-60-01. HF COMMUNICATION OPS TEST NORMAL IAW AMM 23-11-00-710.Nov 3, 2022 · N915AK · Boeing 7379 · HF Communications SystemSDR ASAA2022110240565Fmc · faultedFMC DISAGREE ON GROUND. GROUNDED - YES. COMPLETED ASA CHECKLIST, PULLED & RESET CB'S, RESOLVED.Nov 2, 2022 · N932AK · Boeing 7379 · Flight Management Computing Hardware SystemSDR ASAA2022110140870Sensor · faultedWHILE PERFORMING ASA T.C. #05-020-01, #1 ENG HAS SMT MTX MSG PRESENT "ENG 1 EEC C2", WITH CORRELATED MTX MSG 73-44632: FAN SPEED (N1) SENSOR LOW TOOTH SIGNAL IS INVALID, IN FAULT HISTORY. GROUNDED - YES. REPLACED N1 SENSOR, REF B737-9 AMM 77-12-01-401.Nov 1, 2022 · N977AK · Boeing 7379 · Power Indicating SystemSDR ASAA2022110140559Satcom · failedSATCOM "BITE FAIL" ON SATCOM #2 PULLED SATCOM CIRCUIT BREAKER PER QRH. GROUNDED - YES. PERFORMED BITE CHECK OF SDU IN REFERENCE WITH B737-9 AMM 23-15-00-740-801 - SCM FAILED DURING BITE. REMOVED AND REPLACED SCM IN REFERENCE WITH AMM BOING 23-15-00-700-802. Nov 1, 2022 · N973AK · Boeing 7379 · Communications SystemSDR ASAA2022110140558Warning Light · false activationON MASTER CAUTION RECALL SPEED TRIM FAIL LIGHT ON OVHD PANEL. EXTINGUISHED WITH RESET. GROUNDED - YES. FOUND CHANNEL A FCC FAULT CODE 22-11186. ACCOMPLISHED B737-9 IFIM TASK 22-11-00-810-C61. GROUP 20 BITE TEST PASSED.Nov 1, 2022 · N920AK · Boeing 7379 · Central WarningSDR ASAA2022103140563Anti-Ice Valve · malfunctionedREPEAT PROBLEM WING ANTI ICE LEFT VALVE LT ILLUMINATED WHEN SWITCH ON OR OFF. GROUNDED - YES. REMOVED AND REPLACED L/H WING ANTI ICE VALVE IN REF TO B737-9 AMM 30-11-11-400-801.Oct 31, 2022 · N924AK · Boeing 7379 · Airfoil Anti/De-ice SystemSDR ASAA2022103140547Anti-Ice Valve · faultedL VALVE R VALVE WING ANTI - ICE CAUTION LIGHTS ILLUMINATED IN FLIGHT. GROUNDED - YES. REMOVED L WING ANTI-ICE VALVE REF B737-9 AMM 30-11-11-000-801 STEPS E, F (2), (3), (4), & (6). INSTALLED L/H WING ANTI ICE VALVE REF AMM 30-11-11-400-801 STEPS 3. A - 3. H (2Oct 31, 2022 · N928AK · Boeing 7379 · Airfoil Anti/De-ice System
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