N579AS

Service difficulty reports · 587

Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. 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 n_number = 'N579AS' AND registry_match = 'registration'
  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 ASAA2022083039742Floor Panel · delaminatedFLOOR PANEL P/N 147A5810-23 DELAM. GROUNDED - YES. REPAIRED FLOOR PANEL P/N 147A5810-23 IAW B737-800 SRM 53-00-50-2R0, SRM 53-00-50-2R2, SRM 53-00-50-2R1.Aug 30, 2022 · N579AS · Boeing 737 · Fuselage Miscellaneous StructureSDR ASAA2022083039740Floor Panel · delaminatedFLOOR PANEL P/N 147A5810-137 DELAM. GROUNDED - YES. REPAIRED FLOOR PANEL P/N 147A5810-137 IAW B737-800 SRM 53-00-50-2R-0, 53-00-50-2R2, SRM 53-00-50-2R1.Aug 30, 2022 · N579AS · Boeing 737 · Fuselage Miscellaneous StructureSDR ASAA2022081339769Floor Support · corrodedLEFT SIDE CABIN BETWEEN STATION -900 LBL -1 FLOOR BEAM HAS CORROSION. GROUNDED - YES. EVALED CORROSION.FASTENER HOLE ELONGATED BEYOND ALLOWABLE LIMITS IAW B737-800 SRM 53-70-51-1A-1.LOCATED DRILLED AND INSTALLED NEW FLOOR SUPPORT IAW BOEING DWG 147A5700 REV B Aug 13, 2022 · N579AS · Boeing 737890 · Fuselage Main, StructureSDR ASAA2022081339768Door Sill · corrodedRIGHT SIDE CABIN STATION -993 RBL-45 DOOR SILL AREA HAS CORROSION. GROUNDED - YES. EVALED CORROSION. ORIG T .080"REMOVED .017".REMAINING .068"FOUND TO BE OUT OF LIMITS IAW B737-800 SRM 53-70-51-1A-1 DETAIL D.LOCATED DRILLED, AND INSTALLED NEW MOP SILL IAW BOEIAug 13, 2022 · N579AS · Boeing 737890 · Fuselage Main, StructureSDR ASAA2022081339767Pressure Deck · corrodedRIGHT SIDE CABIN STATION -988 RBL-44 PRESSURE DECK HAS CORROSION. GROUNDED - YES. EVALED CORROSION.ORIG T .040"REMOVED .008".REMAINING .032"FOUND TO BE OUT OF LIMITS IAW B737-800 SRM 53-70-51-1A-1 LOCATED DRILLED, AND INSTALLED NEW PRESSURE DECK / SHEAR WEB IAAug 13, 2022 · N579AS · Boeing 737890 · Fuselage Main, StructureSDR ASAA2022081339766Floorbeam · corrodedLEFT SIDE CABIN STATION -986 RBL - 30 T-CAP HAS CORROSION. GROUNDED - YES. EVALED CORROSION.ORIG T .150"REMOVED .060".REMAINING .090"FOUND TO BE OUT OF LIMITS IAW B737-800 SRM 53-70-51-1A-1 REMOVED ADJACENT STRUCTURE. ACCOMPLISHED FULL TCAP REPAIR IAW B737-800Aug 13, 2022 · N579AS · Boeing 737890 · Fuselage Main, Floor BeamSDR ASAA2022081339765Support · corrodedRIGHT SIDE CABIN STATION 1014 RBL 31 AROUND AFT GALLEY MOUNT AREA HAS CORROSION. GROUNDED - YES. EVALED CORROSION.ORIG T .050"REMOVED .020".REMAINING .030"FOUND TO BE OUT OF LIMITS IAW B737-800 SRM 53-70-51-1A-1 DETAIL C.LOCATED DRILLED, AND INSTALLED NEW WALLAug 13, 2022 · N579AS · Boeing 737890 · Fuselage Main, StructureSDR ASAA2022081339764Support · corrodedLEFT SIDE CABIN STATION -1014 LBL-31 AROUND GALLEY MOUNT AREA HAS CORROSION. GROUNDED - YES. EVALED CORROSION.ORIG T .050"REMOVED .024".REMAINING .026"FOUND TO BE OUT OF LIMITS IAW B737-800 SRM 53-70-51-1A-1 DETAIL C.LOCATED DRILLED, AND INSTALLED NEW WALL SUPAug 13, 2022 · N579AS · Boeing 737890 · Fuselage Main, StructureSDR ASAA2022081339745Angle · corrodedR1 DOOR THRESHOLD SUPPORT STRAP - STA.312 THRU 344- UPPER SURFACE & ROUND FASTENER HOLES HAS AREAS OF SURFACE CORROSION .RED CIRCLED. GROUNDED - YES. REMOVED CORROSION IAW B737-800 SRM 51-10-02.ORIG THICKNESS 0.080REMVOED 0.016REMAINING MAT 0.064FOUND TO BE OUAug 13, 2022 · N579AS · Boeing 737 · Fuselage Main, StructureSDR ASAA2022081339727Transition Panel · crackedAFT PIT R/H TRANSITION PANEL IS CRACKED AT STA 727J+14. (STREAMER ATTACHED). GROUNDED - YES. EVAL'D AFT PIT R/H TRAHSITION PANEL AT STA 727J+14 CRACK IS TO FASTENER HOLE, OUT OF LIMITS,REMOVED FROM STA 727J+12 - STA 767,LOCATE AND DRILLED USING MAT I.D. BAC 14Aug 13, 2022 · N579AS · Boeing 737 · Fuselage Main, StructureSDR ASAA2022081339610Support Angle · corrodedAFT PIT R/H SHIELD SUPPORT P/N 146A8125-53 IS CORRODED. GROUNDED - YES. EVALUATED AFT PIT RH SHIELD SUPPORT P/N 146A8125-53ORIGINAL THICKNESS .050" PER BAC DWG 146A8123-18 REV A SHEET.MAT REMOVED .006',.044" REMAINING.OUT OF LIMITS PER B737-800 SRM 53-60-15-1AAug 13, 2022 · N579AS · Boeing 737890 · Fuselage Main, StructureSDR ASAA2022081339557Transition Panel · crackedAFT PIT R/H TRANSITION PANEL IS CRACKED AT STA 727J+14. (STREAMER ATTACHED). GROUNDED - YES. EVAL'D AFT PIT R/H TRAHSITION PANEL AT STA 727J+14 CRACK IS TO FASTENER HOLE, OUT OF LIMITS,REMOVED FROM STA 727J+12 - STA 767,LOCATE AND DRILLED USING MAT I.D. BAC 14Aug 13, 2022 · N579AS · Boeing 737890 · Fuselage Main, StructureSDR ASAA2022081339552Intercostal · crackedFWD WET AREA: INTERCOSTAL BETWEEN BS 312 AND BS328 RBL 31 IS CRACKED AT FASTENER HOLES. GROUNDED - YES. REMOVED INTERCOSTAL IAW B737-800 SRM 51-40-02.LOCATED AND DRILLED NEW INTERCOSTAL IAW BOEING DRAWING 141A5400 REV-. INSTALLED NEW INTERCOSTAL IAW BOEING DRAAug 13, 2022 · N579AS · Boeing 737890 · Fuselage Main, StructureSDR ASAA2022081239739Floor Panel · delaminatedFLOOR PANEL P/N 141A5810-236 DELAM. GROUNDED - YES. REPAIRED DELAM ON FLOOR PANEL P/N: 141A5810-236 IAW B737-800 SRM: 53-00-50-2R-0 & 53-00-50-2R-7.Aug 12, 2022 · N579AS · Boeing 737 · Fuselage Miscellaneous StructureSDR ASAA2022081239714Transition Panel · noneAFT PIT L/H TRANSITION PANEL PUNCTURED @ STA 747. GROUNDED - YES. EVALUATED AFT PIT L/H TRANSITION PANEL @ STA 747.PUNCTURE OUT OF LIMITS PER B737-800 SRM 53-00-53-1A-2 DUE TO PROXIMITY OF PUNCTURE TO FASTENER HOLE.REMOVED DAMAGED SECTION AT STA 727I TO STA 76Aug 12, 2022 · N579AS · Boeing 737 · Fuselage Main, StructureSDR ASAA2022081239553Transition Panel · puncturedAFT PIT L/H TRANSITION PANEL PUNCTURED @ STA 747. GROUNDED - YES. EVALUATED AFT PIT L/H TRANSITION PANEL @ STA 747.PUNCTURE OUT OF LIMITS PER B737-800 SRM 53-00-53-1A-2 DUE TO PROXIMITY OF PUNCTURE TO FASTENER HOLE.REMOVED DAMAGED SECTION AT STA 727I TO STA 76Aug 12, 2022 · N579AS · Boeing 737890 · Fuselage Main, StructureSDR ASAA2022081139741Floor Panel · delaminatedFLOOR PANEL P/N 147A5810-28 DELAM. GROUNDED - YES. ACCOMPLISHED PERMANENT REPAIR TO FLOOR PANEL 147A5810-28 IAW B737NG SRM 53-00-50-2R-0.Aug 11, 2022 · N579AS · Boeing 737 · Fuselage Miscellaneous StructureSDR ASAA2022081139738Floor Panel · delaminatedFLOOR PANEL P/N 141A5810-286 DELAM. GROUNDED - YES. REPAIRED DELAM ON FLOOR PANEL P/N:141A5810-28C IAW B737-800 SRM:53-00-50-2R-7, 53-00-50-2R-0.Aug 11, 2022 · N579AS · Boeing 737 · Fuselage Miscellaneous StructureSDR ASAA2022081139737Floor Panel · delaminatedFLOOR PANEL P/N 141A5810-558 DELAM. GROUNDED - YES. REPAIRED DELAM ON FLOOR PANEL O/N: 141A5810-558 IAW B737-800SRM:53-00-50-2R-0 & 53-00-50-2R-7.Aug 11, 2022 · N579AS · Boeing 737 · Fuselage Miscellaneous StructureSDR ASAA2022081139736Floor Panel · noneFLOOR PANEL P/N 141A5810-454 DELAM. GROUNDED - YES. REPAIRED DELAM ON FLOOR PANEL 141A5810-454 IAW B737-800SRM:53-00-50-2R-0 & 53-00-50-2R-7.Aug 11, 2022 · N579AS · Boeing 737 · Fuselage Miscellaneous StructureSDR ASAA2022081139735Floor Panel · noneFLOOR PANEL P/N 141A5810-470 DELAM. GROUNDED - YES. REPAIRED DELAM ON FLOOR PANEL P/N:14185810-470 IAW B737-800 SRM:53-00-50-2R & 53-00-2R-7.Aug 11, 2022 · N579AS · Boeing 737 · Fuselage Miscellaneous StructureSDR ASAA2022081139734Floor Panel · noneFLOOR PANEL P/N 141A5810-155 DELAM. GROUNDED - YES. REPAIRED DELAM ON FLOOR PANEL P/N:141A5810-155 IAW B737-800 SRM:53-00-50-2R-0 & 53-00-50-2R-7.Aug 11, 2022 · N579AS · Boeing 737 · Fuselage Miscellaneous StructureSDR ASAA2022081139732Floor Panel · delaminatedFLOOR PANEL P/N 141A5810-175 DELAM. GROUNDED - YES. REPAIRED DELAM ON FLOOR PANEL 141A5810-175 IAW B737-800 SRM 53-00-50-2R AND 53-00-50-2R-7.Aug 11, 2022 · N579AS · Boeing 737 · Fuselage Miscellaneous StructureSDR ASAA2022071239057Start Valve · degraded#2 ENGINE SLUGGISH TO START. N2 ACCELERATES TO 21-22% IN OVER 30 SEC AND DOES NOT INCREASE BEYOND THAT WITHIN THE START PARAMETERS. EGT T NORMAL DURING START. GROUNDED - YES. REMOVED AND REPLACED #2 ENGINE START VALVE REF B737-800 AMM 80-11-03. OPS CHECK GOOD.Jul 12, 2022 · N579AS · Boeing 737890 · Engine CrankingSDR ASAA2022071139027Detector · faulty#1 ENGINE S3 EGT SHOWS DASHES. GROUNDED - YES. REMOVED AND REPLACED S3 DETECTOR REF. B737-800 AMM 77-21-01. REMOVED AND REPLACED CJ10 HARNESS REF. AMM 73-21-06.Jul 11, 2022 · N579AS · Boeing 737890 · Engine Temperature Indicating SystemSDR ASAA2022071038989Overheat · warning lightON CLIMBOUT, L SIDE WINDOW HEAT OVERHEAT LIGHT ILLUMINATED, ACCOMPLISHED QRH & LIGHT EXTINGUISHED. GROUNDED - YES. PERFORMED BITE TEST OF WHCU IAW B737-800 FIM 30-41 TASK 801. NO CURRENT FAULTS PRESENT.Jul 10, 2022 · N579AS · Boeing 737890 · Windshield/Door Rain/Ice RemovalSDR ASAA2022061138615Heater · warning lightLEFT SIDE WINDOW HEAT OVERHEAT LIGHT CAME ON DURING FLIGHT QRH DIRECT US TO TURN OFF (FOR 5 MINS) THEN TURN BACK ON, OVERHEAT LIGHT EXTINGUISHED. OPERATED NORMAL FOR REST OF FLIGHT. QRH DIRECTED INFORMATION ONLY WRITE UP. GROUNDED - YES. PERFORMED OPERATIONAL Jun 11, 2022 · N579AS · Boeing 737890 · Windshield/Door Rain/Ice RemovalSDR ASAA2022051638352Radar · failedPWS FAIL AND WXR FAIL INDICATED ON F/O ND. GROUNDED - YES. ACCOMPLISHED A/C POWER RESET PER B737-800 AMM 20-60-01. ACCOMPLISHED WXR OPS TEST PER AMM 34-43-00. OPS CHECKS NORMAL.May 16, 2022 · N579AS · Boeing 737890 · Doppler SystemSDR ASAA2022051638351Cover · missingFA REPORTS EXIT SIGN COVER BY L2 DOOR MISSING. GROUNDED - YES. REPLACED COVER REF B737-800 AMM 33-51-01.May 16, 2022 · N579AS · Boeing 737890 · Emergency LightingSDR ASAA2022050838240Fmc · faultedON TAXI IN WE NOTICED WE LOST BOTH FMC'S AND ALL DATA. GROUNDED - YES. VERIFIED F/H FMC HAD A PGM FAULT, R/H FMC NO FAULTS LAST FLT. REF B737-800 FIM 34-61 TASK 801 & 807 ACCOMP FMC'S BOTH C/B CYCLING OPEN & CLOSED. ACCOMP SENSOR TEST, BOTH FMC'S SHOW OK REF BMay 8, 2022 · N579AS · Boeing 737890 · Flight Management Computing Hardware SystemSDR ASAA2022050338193Blower · inoperativeREF AD20211420-MULTI-21-1. FOUND WEATHER RADAR COOLING BLOWER INOP. GROUNDED - YES. REPLACED WEATHER RADAR T/R MOUNT BLOWER ASSY WITH SERVICEABLE UNIT. OPS CHECKS OK. WEATHER RADAR SYS OPS TEST OK. REF B737-800 AMM 34-43-51.May 3, 2022 · N579AS · Boeing 737890 · Independent Position Determining SystemSDR ASAA2022042838155Spacer · unknownPER T/C 78472010 #2 ENG. FAN BLADE LUBE SPACERS # 4, 5, 7, 8, 9, AND 22 ARE DISBONDED. GROUNDED - YES. REMOVED AND REPLACED #2 ENG FAN BLADE SPACERS # 4, 5, 7, 8, 9, AND 22 REF T/C 78472010.Apr 28, 2022 · N579AS · Boeing 737890 · Turbine Engine Air Inlet SectionSDR ASAA2022042838154Platform · unknownPER T/C 78472010 #2 ENG. FAN BLADE LUBE PLATFORM #8 PN 340-001-817-0 NOT PAIRED 180 DEGREES APART. GROUNDED - YES. REMOVED AND REPLACED ENG #2 FAN BLADE PLATFORM #8, NEW PART #340-001-816-0, PLATFORMS NOW PAIRED REF ASA T/C 78472010.Apr 28, 2022 · N579AS · Boeing 737890 · Turbine Engine Air Inlet SectionSDR ASAA2022042838152Unknown · wornPER T/C 78472010 #2 ENG FAN BLADE LUBE FRONT SPINNER CONE 6 WASHER GROOVES ARE WORN. GROUNDED - YES. REMOVED AND REPLACED #2 ENG FRONT CONE WASHER REF ASA T/C 78472010. REMOVED AND REPLACED #2 ENG FRONT SPINNER CONE BOLTS SAME REF.Apr 28, 2022 · N579AS · Boeing 737890 · Turbine Engine Air Inlet SectionSDR ASAA2022042338103Lamp · failedTASK CARD 78233008 - FLT DECK EMERGENCY DOME LT IS VERY DIM. GROUNDED - YES. RELAMPED FLT DECK EMERGENCY DOME LT, OPS CHECKS OK. REF B737-800 AMM 33-51-00.Apr 23, 2022 · N579AS · Boeing 737890 · Emergency LightingSDR ASAA2022041838140Switchpack · warning light#2 ENGINE "REVERSER" LIGHT ILLUMINATED ON ON OVERHEAD PANEL. GROUNDED - YES. REMOVED AND REPLACED R/H AUTOTHROTTLE SWITCHPACK REF B737-800 AMM 76-11-07/401. OPS CHECK OK. REMOVED 4 SLEEVE PINS, REMOVED LOCKWIRE FROM #2 T/R HANDLE, RESET 2 C/BS.Apr 18, 2022 · N579AS · Boeing 737890 · Engine ControlsSDR ASAA2022040237873None · inoperativeFMC SCREEN BLANKED W/ FAULT LIGHT AFTER 3-5 SECONDS FMC ACTIVATED W/ BLUE LINE THROUGH SCREEN. GROUNDED - YES. REMOVED AND REPLACED FO'S FMC CDU REF B737-800 AMM 34-61-01. OPS CHECK GOOD.Apr 2, 2022 · N579AS · Boeing 737890 · Flight Management Computing Hardware SystemSDR ASAA2022030637656Modulating Valve · inoperativeUPON OPS PROCEDURE FOR MEL 21-21G, RIGHT PACK LIGHT ILLUMINATED. GROUNDED - YES. PERFORMED TROUBLESHOOTING PER B737-800 FIM TASK 21-62-00-810-831 FOUND RIGHT TEMP CONTROL VALVE BAD. REMOVED AND REPLACED RIGHT TEMP CONTROL VALVE IAW B737-800 21-51-10. PERFORMEDMar 6, 2022 · N579AS · Boeing 737890 · Cabin Cooling SystemSDR ASAA2022030537658Modulating Valve · inoperativeAFTER PUSH BACK AND COMPLETION OF "AFTER START" CHECKLIST ON - RECALL MASTER & CONT CAB ZONE TEMP LIGHT ILLUMINATED CAUTION. GROUNDED - YES. PERFORMED TROUBLESHOOTING PER B737-800 FIM TASK 21-62-00-810-831 FOUND RIGHT TEMP CONTROL VALVE BAD. REMOVED AND REPLAMar 5, 2022 · N579AS · Boeing 737890 · Cabin Temperature Control SystemSDR ASAA2022020737399Modulating Valve · faultyCONT CAB ZONE TEMP LIGHT ILLUMINATED ON RECALL EXTINGUISHES ON MASTER CAUTION RESET. GROUNDED - YES. CONFIRMED FAULT, #2 PACK/ZONE TEMP CONTROLLER SHOWS "FLIGHT DECK TCV (V143) FAIL & CONT CAB ZONE TEMP LIGHT ILLUMINATE WHEN RECALL. REMOVED & REPLACED SAME PERFeb 7, 2022 · N579AS · Boeing 737890 · Air Distribution SystemSDR ASAA2022020637378Hmu · faultyWHILE PERFORMING TASK CARD 78273000, #1 ENG HAS SHORT TIME FAULT 73-30351 THE FMV POSITION SIGNAL DISAGREE, ON MULTIPLE FLIGHT LEGS. GROUNDED - YES. ACCOMPLISHED B737-800 FIM 73-25 TASK 804, ALL CONTINUITY CHECKS GOOD. REMOVED AND REPLACED HMU PER TASK CARDS NFeb 6, 2022 · N579AS · Boeing 737890 · Engine Fuel Indicating SystemSDR ASAA2022013037302Start Valve · inoperative#1 START VALVE WON'T OPEN. GROUNDED - YES. REMOVED & REPLACED #1 START VALVE PER B737-800 AMM 80-11-03. OPS CHECK GOOD.Jan 30, 2022 · N579AS · Boeing 737890 · Engine Start Valves/ControlsSDR ASAA2022011537152Unknown · unknownR PACK LT ILLUMINATED ON RECALL. GROUNDED - YES. C/W BITE PROCEDURE B737-800 FIM 21-62-TASK 801 FOR LEFT AND RIGHT PACK / ZONE TEMPERATURE CONTROLLERS, R PACK TCV LIGHT ON PREV FLT, GREEN ON VERIFY AND RESET. C/W FIM 21-62 TASK 831 RIGHT PZTC-2 RESET. FOUND DIJan 15, 2022 · N579AS · Boeing 737890 · Cabin Cooling SystemSDR ASAA2022011437162Unknown · unknownL2 WINDOW OVERHEAT LIGHT ILLUMINATED. ACCOMP QRH PROCEDURE-LIGHT REMAINED OFF AFTER 5 MIN COOLING PERIOD. GROUNDED - YES. ACCOMPLISHED B737-800 FIM 30-41 TASK 801 PERFORMED BITE CHK, GOOD. NO DEFECTS NOTED.Jan 14, 2022 · N579AS · Boeing 737890 · Windshield/Door Rain/Ice RemovalSDR ASAA2021111736680Engine · faulty#1 ENGINE TREND DATA SHOWS A SHIFT IN DEGT, HDM, DELTA FUEL FLOW, DELTA CORE SPEED AND VSV POSITION DIVERGENCE WITH EXCESSIVE VSV SCATTER. (#PRI1/ETOPS)SEA ONLY. GROUNDED - YES. REMOVED BORESCOPE PLUGS 2 THROUGH 9, BORO PLUG 13,15 AND 17. REMOVED DRIVE PAD COVNov 17, 2021 · N579AS · Boeing 737890 · Fuel Controlling SystemSDR ASAA2021111136557Coupler · failedHF 1 TRANSMIT AND RECEIVE NORMALLY HF2 UNABLE TO TRANSMIT OR RECEIVE. GROUNDED - YES. REMOVED AND REPLACED #2 HF COUPLER IAW B737-800 AMM 23-11-61/401. VERIFIED #2 HF TRANSMIT AND RECEIVED OK ON GROUND.Nov 11, 2021 · N579AS · Boeing 737890 · HF Communications SystemSDR ASAA2021110936561Transceiver · failedIN FLIGHT UNABLE TO XMIT ON EITHER HF. RETUNED NUMEROUS TIMES, MADE CONTACT W/SFO AIRINC AND 2 GOOD SELCALS. DURING FLIGHT HOURS IN, RETRIED HF 2 & HF1 RECEIVE BUT ONLY HF 2 XMITTED INTERMITTENTLY. GROUNDED - YES. CYCLED POWER TO BOTH HF'S #1 HF OPS RESTORED, Nov 9, 2021 · N579AS · Boeing 737890 · HF Communications SystemSDR ASAA2021102936449Unknown · unknownHF 2 WILL RECEIVE BUT NOT TRANSMIT. GROUNDED - YES. (RESOLVED ON W/O: 1889819 TASKCARD: N/R-00001 ) ACCOMPLISHED HF OPS CHECK REF B737-800 AMM 23-11-00 COULD TRANSMIT AND RECEIVE CLEARLY WITH NO FAULTS FOUND. ACCOMPLISHED BITE CHECK OF HF #2 TRANSCEIVER WITH NOct 29, 2021 · N579AS · Boeing 737890 · HF Communications SystemSDR ASAA2021101636324Lens · detachedL/H FWD OVERWING EXIT, EXIT SIGN COVER MISSING. GROUNDED - YES. INSTALLED NEW EXIT SIGN COVER. OPS CHECK GOOD.Oct 16, 2021 · N579AS · Boeing 737890 · Emergency LightingSDR ASAA2021101336279Shim · wornWHILE PERFORMING FAN LUBE T/C 78472010 ON #1 ENGINE FOUND ALL SHIMS TO HAVE MOLYDAG COATING LOSS BETWEEN 25 TO 100%. GROUNDED - YES. REINSTALLED EXISTING SHIMS DUE NO NEW SHIMS AVAILABLE. SHIMS OK TO REMAIN IN SERVICE REF B737-800 AMM 72-21-02 SECTION L. REPLOct 13, 2021 · N579AS · Boeing 737890 · Turbine Engine Air Inlet Section
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