N442AS

Service difficulty reports · 249

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 = 'N442AS' 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 ASAA2023010441404Controller · faultedZONE TEMP ON RECALL RESETS WITH MC. GROUNDED - YES. CONT CAB ZONE TEMP ILLUMINATED. FOUND TRIM VLV FAULT ON RIGHT PACK TEMP CONTROLLER WAS ABLE TO RESET FAULT. PACK TEMP CONTROLLER BITE CHECK GOOD IAW B737-900 FIM 21-62.Jan 4, 2023 · N442AS · Boeing 737990ER · Cabin Temperature Control SystemSDR ASAA2022123141368Bulb · faultyAFTER 4 HOURS IN CRUISE R PACK TEMP INDICATES LOW. NO ISSUES CONTROLLING CABIN TEMP NOTED. AT FL400, L PACK 32, R PACK 2, PAX CABIN 26. GROUNDED - YES. REPLACED RH PACK TEMP BULB PER B737-900 AMM 21-51-60. OPS CHECK GOOD.Dec 31, 2022 · N442AS · Boeing 737990ER · Cabin Cooling SystemSDR ASAA2022122941274Lamp · inoperativeR2 EXTERNAL EMERGENCY EXIT LIGHT INOP. GROUNDED - YES. RELAMPED R2 EXTERIOR EMERGENCY LIGHT OP CHECK GOOD IAW B737-900AMM 33-51-00.Dec 29, 2022 · N442AS · Boeing 737990ER · Emergency LightingSDR ASAA2022122971294Battery Pack · inoperativeL2 EXTERIOR EMER EXIT LT INOP. GROUNDED - YES. REMOVED AND REPLACED EMERGENCY LIGHT BATTERY PACK AT POWER SUPPLY M1673 AND OPS CHECK GOOD IAW ASA B737-900 AMM 33-51-06.Dec 27, 2022 · N442AS · Boeing 737990ER · Emergency LightingSDR ASAA2022122971293Battery Pack · inoperativeEMERG EXIT LTS ABOVE L2 DOOR, AND TO THE LEFT OF L2 DOOR INOP. GROUNDED - YES. REMOVED AND REPLACED EMERGENCY LIGHT BATTERY PACK AT POWER SUPPLY M1673 AND OPS CHECK GOOD IAW ASA B737-900 AMM 33-51-06.Dec 27, 2022 · N442AS · Boeing 737990ER · Emergency LightingSDR ASAA2022122971292Battery Pack · inoperativeEMERG EXIT LTS FWD OF AFT GALLEY INOP. GROUNDED - YES. REMOVED AND REPLACED EMERGENCY LIGHT BATTERY PACK AT POWER SUPPLY M1673 AND OPS CHECK GOOD IAW ASA B737-900 AMM 33-51-06.Dec 27, 2022 · N442AS · Boeing 737990ER · Emergency LightingSDR ASAA2022122741275Battery Pack · inoperativeLEFT WING FWD DOOR EMER EXIT LT INOP. GROUNDED - YES. REMOVED AND REPLACED EMERGENCY LIGHT BATTERY PACK AT POWER SUPPLY M2335 AND OPS CHECK GOOD IAW ASA B737-900 AMM 33-51-06.Dec 27, 2022 · N442AS · Boeing 737990ER · Emergency LightingSDR ASAA2022122041265Skin · dentedDENT ON CROWN SECTION APPROX. STA 500A+2 - STR 22 REQUIRES EVAL. GROUNDED - YES. REPAIRED DENT ON FUSLAGE CROWN SECTION STA 500A STR 2L IAW B737-900 SRM 53-00-01-2R-35, CATEGORY B REPAIR INSPECTION THRESHOLD 50,000 FLIGHT CYCLES.TRACKED BY ENGINEERING. THIS CLDec 20, 2022 · N442AS · Boeing 737990ER · Fuselage Main, Plate/SkinSDR ASAA2022120741125Floor Panel · damagedFLOOR PANEL 24DF HAS DENT, EDGE CRUSHED. GROUNDED - YES. REPAIRED FLOOR PANEL 242DF IAW ER-SRM-53-00-50-2R-4 & B737-900ER-SRM 53-00-50-1A-1.Dec 7, 2022 · N442AS · Boeing 737990ER · Fuselage Floor PanelSDR ASAA2022112540940Aoa · faultedCAPT PFD SPEED FLAG ( SPD AMBER) AND CAPT PFD ALTITUDE FLAG (ALT AMBER) DISPLAYED NUMEROUS TIMES BEGINNING DURING CLIMS AT APPROX 3000 FT MSL THRU FL 230. NO INDICATING AT CRUISE AIRSPEED AND ALTITUDE DISPLAYS BLANKED EACH TIME. GROUNDED - YES. AIR TURNBACK - Nov 25, 2022 · N442AS · Boeing 737990ER · Stall Warning SystemSDR ASAA2022112140884Regulator · leakingHIGH STAGE REGULATOR LEAK CHECK BAD. GROUNDED - YES. REMOVED AND REPLACED HIGH STAGE REGULATOR IAW B737-900 AMM 36-11-07. LEAK CHECK GOOD.Nov 21, 2022 · N442AS · Boeing 737990ER · Pneumatic Distribution SystemSDR ASAA2022111940869Fuel Heater · leaking#2 ENG FUEL SERVO HEATER LEAKING OUT OF TOP CAP. GROUNDED - YES. REMOVED AND REPLACED #2 ENG SERVO FUEL HEATER REF B737-900 AMM 73-11-07/401. LEAK CHECKED #2 SERVO FUEL HEATER DURING IDLE RUN. NO LEAKS NOTED.Nov 19, 2022 · N442AS · Boeing 737990ER · Engine Fuel DistributionSDR ASAA2022111940868Fuel Heater · leaking#1 ENG FUEL SERVO HEATER LEAKING OUT OF TOP CAP. GROUNDED - YES. REMOVED AND REPLACED #1 ENG SERVO FUEL HEATER REF B737-900 AMM 73-11-07/401. LEAK CHECKED #1 ENG FUEL SERVO HEATER. NO LEAKS OR OTHER DEFECTS NOTED.Nov 19, 2022 · N442AS · Boeing 737990ER · Engine Fuel DistributionSDR ASAA2022111740847Adiru · unserviceableAUTOPILOT A DISCONNECTED TWICE IN LEVEL FLIGHT WITH TEMPORARY LOSS OF LNSV + VNAV. GROUNDED - YES. FAULT REVIEW ON ADIRU L, SMYD 1, AND DFCS CH. A RESULTED IN THE FOLLOWING FAULTS: 22-11397, 22-11739, 22-11032, 22-11378, 22-11017, 22-11754, 22-11021, 34-21007,Nov 17, 2022 · N442AS · Boeing 737990ER · Autopilot SystemSDR ASAA2022092840088Blade · out of limitsPER ASA T/C 78472010, #1 ENG FAN BLADE LUBE #11 FAN BLADE CU-NI-IN COATING MISSING BEYOND LIMITS ON CC SIDE. GROUNDED - YES. REMOVED AND REPLACED #11 FAN BLADE AND PAIRED POSITION #23 PER ASA T/C 78472010. FAN BLADE ASSY REMAP ACCOMPLISHED. SEE BLAMAP RESULT ASep 28, 2022 · N442AS · Boeing 737990ER · Turbine Engine Air Inlet SectionSDR ASAA2022092840087Blade · out of limitsPER ASA T/C 78472010, #1 ENG FAN BLADE LUBE #24 FAN BLADE CU-NI-IN COATING MISSING BEYOND LIMITS ON CC SIDE. GROUNDED - YES. REMOVED AND REPLACED #24 FAN BLADE AND PAIRED POSITION #12 PER ASA T/C 78472010. FAN BLADE ASSY REMAP ACCOMPLISHED. SEE BLAMAP RESULT ASep 28, 2022 · N442AS · Boeing 737990ER · Turbine Engine Air Inlet SectionSDR ASAA2022092840086Platform · misalignedPER ASA T/C 78472010 #1 ENG. FAN BLADE LUBE #7 PLATFORMS P/N 340-001-817-0 NOT PAIRED 180 DEGREE APART. GROUNDED - YES. REMOVED AND REPLACED # 7 PLATFORM REF ASA T/C 78472010. PLATFORM REPLACED ON #1 ENGINE.Sep 28, 2022 · N442AS · Boeing 737990ER · Turbine Engine Air Inlet SectionSDR ASAA2022092840085Seal · wornPER ASA T/C 78472010 #1 ENG. FAN BLADE LUBE PLATFORMS # 2,3,20, AND 21 SEALS ARE ARE WORN. GROUNDED - YES. REMOVED AND REPLACED #1 ENGINE FAN BLADE LUBE PLATFORMS 2,3,20, AND 21 REF ASA T/C 78472010.Sep 28, 2022 · N442AS · Boeing 737990ER · Turbine Engine Air Inlet SectionSDR ASAA2022092840084Spacer · debondedPER ASA T/C 78472010 #1 ENG. FAN BLADE LUBE SPACERS #2,4,6,7,10,12,13,14,16,17,18,19,20,21,22,AND 23 ARE DISBONDED. GROUNDED - YES. REMOVED AND REPLACED #1 ENGINE FAN BLADE LUBE SPACERS 2,4,6,7,10,12,13,14,16,17,18,19,20,21,22, AND 23 REF ASA T/C 78472010.Sep 28, 2022 · N442AS · Boeing 737990ER · Turbine Engine Air Inlet SectionSDR ASAA2022082739706Ignition Unit · faultyAPU START FAULT DURING START. GROUNDED - YES. REPLACED THE APU IGNITION UNIT, APU STARTS AND OPERATES NORMALLY, REF B737-900 AMM 49-41-31-000-801.Aug 27, 2022 · N442AS · Boeing 737990ER · APU Start/Ignition SystemSDR ASAA2022080539408Circuit Breaker · not seatedDATA LOADER C/B OPEN ON PREFLIGHT. GROUNDED - YES. INSPECTED DATA LOADER C/B NO DEFECTS NOTED. RESET C/B PER B737-900 AMM 20-60-01.Aug 5, 2022 · N442AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA2022080139342Unknown · inoperativeAUTO FAIL LIGHT ILLUMINATED AFTER LANDING SWITCH STILL IN AUTO POSITION BUT ALTN LIGHT ILLUMINATED ALSO. GROUNDED - YES. REMOVED AND REPLACED AFT OUTFLOW VALVE ASSEMBLY REF B737-900 AMM 21-31-03. OPS CHECK GOOD. NO FAULTS ON DCPC #1 AND #2.Aug 1, 2022 · N442AS · Boeing 737 · Cabin Pressure Control SystemSDR ASAA2022032137738Unknown · unknownFMC DISAGREE AFTER LANDING. GROUNDED - YES. PERFORMED B737-900 FIM 34-61 TASK 835 AND FMC DISAGREE MSG EXTINGUISHED.Mar 21, 2022 · N442AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA2022022637564Panel · inoperative#2 HF/SAT XFER SWITCH HF PORTION DOES NOT ILLUMINATE. GROUNDED - YES. RMVD & RPLCD HF/SAT PANEL PER B737-900 AMM 23-15-00, SYS OPS CKS NML PER SAME, GND VERIFICATION SUCCESSFUL.Feb 26, 2022 · N442AS · Boeing 737990ER · HF Communications SystemSDR ASAA2022022637563Panel · inoperative#1 HF/SAT XFER SWITCH HF PROTION DOES NOT ILLUMINATE. GROUNDED - YES. RMVD & RPLCD HF/SAT PANEL PER B737-900 AMM 23-15-00, SYS OPS CKS NML PER SAME, GND VERIFICATION SUCCESSFUL.Feb 26, 2022 · N442AS · Boeing 737990ER · HF Communications SystemSDR ASAA2022022337541Unknown · unknownL2 WINDOW HEAT OVERHEAT LIGHT ILLUMINATED IN FLIGHT. RAN QRH PROCEDURE AND LIGHT EXTINGUISHED. GROUNDED - YES. PERFORMED WHCU BITE PROCEDURE REF B737-900 FIM 30-41 TASK 801, NO CURRENT FAULT LOGGED, FOUND HISTORY FAULT FOR WINDOW SENSOR. WINDOW HEAT SYSTEM WORFeb 23, 2022 · N442AS · Boeing 737990ER · Windshield/Door Rain/Ice RemovalSDR ASAA2022020337348Unknown · unknownZONE TEMP LIGHT CONT CAB ILLUMINATED AT FL 340 WILL NOT EXTINGUISH. GROUNDED - YES. ACCOMPLISHED B737-900 FIM 21-62 TASK 801, FOUND "FLT DECK TRIM VALVE" IN HISTORY, RESET AND C/W OPS TEST, OPS CHECK GOOD, FAULT DID NOT RETURN.Feb 3, 2022 · N442AS · Boeing 737990ER · Cabin Temperature Control SystemSDR ASAA2022011037191Frame · gougedFRAME STA. 227R-10 INCHES O/B FROM CL 0 -.375" LX.375'W IMPACT DAMAGE ON AFT FACE JUST ABOVE LOWER RADIUS OF FRAME. DOT. GROUNDED - YES. ACCOMPLISHED DOUBLER REPAIR OF FRAME IAW ALASKA EA# 900ER-53EA-24129 DATED 01-19-2022. REPAIR COMPLETED PER BOEING SR 3-524Jan 10, 2022 · N442AS · Boeing 737990ER · Fuselage Main, StructureSDR ASAA2021111436612Unknown · unknownWHILE ACCOMPLISHING PZTC BITE, FOUND FAULT FOR LH PACK EXIT SRADA. GROUNDED - YES. #1 PZTC REPLACED, REF LOG 60238059, FOR HISTORY OF "DEAD" AND OTHER FAILURE MESSAGES. ACCOMPLISHED MEL 21-5D RESTORATION PROCEDURES PER B737-900 AMM 21-00-00-440-802. RAM DOOR INov 14, 2021 · N442AS · Boeing 737990ER · Cabin Cooling SystemSDR ASAA2021111336579Modulating Valve · inoperativeL PACK LIGHT ILLUMITS ON RECALL AFTER START. GOES OUT WITH MASTER CAUTION. GROUNDED - YES. REMOVED & REPLACED LH PACK TRIM MODULATING VALVE REF B737-900 AMM 21-61-21-400-801. LEAK CK GOOD PER THE SAME.Nov 13, 2021 · N442AS · Boeing 737990ER · Cabin Cooling SystemSDR ASAA2021110836554Unknown · unknownZONE TEMP CONT CAB ILLUMINATES DURING RECALL ALONG WITH MASTER CAUTION LIGHT. BOTH LIGHTS EXTINGUISH WHEN MASTER CAUTION LIGHT IS RESET. CABIN TEMP IS CONTROLLABLE. GROUNDED - YES. ACCOMPLISHED BITE FOUND FLIGHT DECK TRIM VALVE FAULT RAN B737-900 FIM 21-62 TASNov 8, 2021 · N442AS · Boeing 737990ER · Cabin Temperature Control SystemSDR ASAA2021101336288Pressure Switch · faulty#1 AFT MAIN FUEL PUMP LOW PRESSURE LIGHT DID NOT ILLUMINATE WHEN TURNED OFF. GROUNDED - YES. VERIFIED N O HARD FAULT FOUND. REMOVED AND REPLACED AS A PRECAUTION L/H AFT FUEL BOOST PUMP PSI SWITCH REF B737-900 AMM 28-42-11. OPS AND LEAK CK GOOD. NO DEFECTS NOTEOct 13, 2021 · N442AS · Boeing 737990ER · Fuel Indicating SystemSDR ASAA2021101336285Control Panel · defectiveMCP ALTITUDE WINDOW HAS BURNED IN SEGMENTS. GROUNDED - YES. RMVD AND INSTALLED NEW MCP REF B737-900 AMM 22-11-34. ACCOMPLISHED MCP PNL INSTALL TEST AMM 22-11-34-740-801. ACCOMPLISHED LLM TESTS DFCS LRU REPLACEMENT TEST FOR MCP AMM 22-11-34/501. LAND VERIFY 22-Oct 13, 2021 · N442AS · Boeing 737990ER · Autopilot SystemSDR ASAA2021100636215Unknown · unknownL SIDE WINDOW HEAT OVERHEAT ON AT FL370. GROUNDED - YES. EXTINGUISHED PER QRH PROCEDURE.Oct 6, 2021 · N442AS · Boeing 737990ER · Windshield/Door Rain/Ice RemovalSDR ASAA2021092136026Unknown · unknownOVERHEAT LITE LEFT SIDE WINDOW. TURNED OFF AND BACK ON. NO O/H LITE BUT TEMP OF LEFT SIDE WINDOW FEELS UNUSUALLY COLD. GROUNDED - YES. TURNED POWER OFF MOMENTARILY, RECHECKED. GVI NO DEFECTS NOTED. OPS CK'D NORMAL. PILOT CONSENSUS SAME. OKAY FOR SERVICE.Sep 21, 2021 · N442AS · Boeing 737990ER · Windshield/Door Rain/Ice RemovalSDR ASAA2021040634519Battery Pack · inoperativeEMERGENCY LIGHTS INOP @ 25 FED, 27 CBA, 29 FED. GROUNDED - YES. REMOVED AND REPLACED BATTERY PACKS AT 25 CBA, 27 FED. OPERATIONAL CHECK GOOD REF B737-900 AMM 33-51-06.Apr 6, 2021 · N442AS · Boeing 737990ER · Emergency LightingSDR ASAA2021011033864Housing · crackedFWD CARGO DOOR HANDLE HOUSING CRACKED. GROUNDED-YES. REMOVED AND REPLACED FWD CARGO DOOR HOUSING, REF B737-900 SRM 51-40-02.Jan 10, 2021 · N442AS · Boeing 737990ER · Cargo/Baggage DoorsSDR ASAA2020082823098Memory Device · inoperativeNO DUCT PRESSURE WITH APU BLEED ON OUT GATE. GROUNDED - YES. REMOVED & REPLACED APU ENGINE WIRE HARNESS P/N 3888449-2, REF B737-900 AMM 49-11-01-400-802 & APU DATA MEMORY MODULE REF B737-900 AMM 49-72-11-400-801. OPERATIONS CHECK NORMAL. VERIFIED CORRECT AAug 22, 2020 · N442AS · Boeing 737990ER · Airborne Auxiliary Power Unit (APU) SystemSDR ASAA2020082093043Connector · looseAPU FAULT LIGHT ON AFTER ATTEMPTED RESTART. GROUNDED - YES. VERIFIED APU INOP, FAULT CODE 49-15217 (INLET DOOR SWITCH POWER SHOWS HIGH CURRENT), REF B737-900 FIM 49-10 TASK 809. APU BITE SHOWS NO CURRENT FAULTS. FOUND BACKSHELL LOOSE AND WIRE W4726-1003-20Aug 19, 2020 · N442AS · Boeing 737990ER · APU System WiringSDR ASAA2020080312966Warning Message · false activationAFTER PUSH BACK RECEIVED ZONE TEMP CAUTION LIGHT. ZONE TEMP LIGHT EXTINGUISHES ON A RESET CONT CAB CONTROLLER. GROUNDED - YES. PERFORMED PACK TEMP CTRL BITE IAW B737-900 AMM 21-62 TASK 801. FOUND FLT DECK TRIM VALVE ON PACK/ZN CON-R TO BE AT FAULT. PERFORMED BAug 1, 2020 · N442AS · Boeing 737990ER · Cabin Temperature Control SystemSDR ASAA2020062312827Modulating Valve · faultyAFTER START MASTER CAUTION RECALL CONT CAB ZONE TEMP ILLUMINATED. EXTINGUISHES UPON RESET. GROUNDED - YES. PERFORMED PACK/ZONE TEMP CONT BITE TEST REF B737-900 AMM 21-61-00. FLT DECK TRIM VALVE FAULTED. REMOVED & REPLACED CONT CAB TAV REF AMMM 21-61-000 & 21-6Jun 21, 2020 · N442AS · Boeing 737990ER · Cabin Temperature Control SystemSDR ASAA2020062232816Modulating Valve · inoperativeCONTROL CABIN ZONE TEMP LIGHT ILLUMINATED ON RECALL. CLEARS WITH MASTER CAUTION RESET. GROUNDED - YES. FOLLOWED FIM 21-62 TASK 832 FOUND CONTROL CABIN ZONE TRIM AIR MODULATING VALVE TO BE INOP. REMOVED AND REPLACED IAW AMM 21-61-21-000/400. OPS CHECKS GOOJun 20, 2020 · N442AS · Boeing 737990ER · Cabin Temperature Control SystemSDR ASAA2020061642799Controller · malfunctionedON RECALL, AT TOP OF DESCENT, CONT CAB ZONE TEMP ILLUMINATED, RESET WITH PUSHING MASTER CAUTION. GROUNDED - YES. VERIFIED FAULT, ACCOMPLISHED A PACK/ ZONE TEMP CONTROL BITE, BOTH CONTROLLERS SHOW TRIM VALVE FOR FLT DECK FAULT. ACCOMPLISHED A CONTROLLER RESJun 14, 2020 · N442AS · Boeing 737990ER · Cabin Temperature Control SystemSDR ASAA2020050532705Elastomer · missing#1 ENG FAN BLADE PLATFORMS #1 AND #7, MISSING ELASTOMER SEAL ON BOTH SIDES FULL LENGTH. GROUNDED - YES. #1 ENG INSTALLED NEW PLATFORMS #1 AND #7 REF T/C 78472010.May 1, 2020 · N442AS · Boeing 737990ER · Turbine Engine Compressor SectionSDR ASAA2020022763281Controller · inoperativeAFTER PUSHBACK ON RECALL RIGTHT PACK LIGHT ILLUMINATED LIGHT EXT WITH MASTER CAUTION RECALL. GROUNDED - YES. RELEASED PER MEL 21-32B RIGHT LAND PACK PRIMARY TEMP CONTROL INOP. FOUND PACK LT NOT ILLUMINATED ON RECALL BUT FLT DECK ZONE TEMP ON RECALL. RT PACK LOFeb 26, 2020 · N442AS · Boeing 737990ER · Cabin Cooling SystemSDR ASAA2020011531865Circuit Breaker · trippedDURING PREFLIGHT DISCOVERED "CABIN EMER LIGHTS" CB WAS OPEN. GROUNDED - YES. INSP AND RESET A9 ON P6-11 CABIN EMER LIGHTS PER AMM 20-60-01, OPS CHECK OF EMERGENCY LIGHTS GOOD PER AMM 33-51-00.Jan 13, 2020 · N442AS · Boeing 737990ER · Emergency LightingSDR ASAA2019121191567Exciter · inoperativePER FLIGHT CREW REPORT APU WOULD NOT START FAULT LIGHT ILLUMINATED. GROUNDED - YES. PERFORMED APU BITE PROCEDURE REF B737-900 FIM 49-60 TASK 801 FOUND MX MESSAGE 49-41184 IN CURRENT STATUS. COMPLIED W/ FIM 49-40 TASK 804 THRU STEP F(4) NO ISSUES FOUND W/ WIRINDec 9, 2019 · N442AS · Boeing 737990ER · APU Start/Ignition SystemSDR ASAA2019120981541Spinner · damagedWHILE ACCOMPLISHING TC 78472000 FOUND #1 ENGINE FRONT SPINNER CONE MISSING 50% BLACK ANODIZED COATING, NO CORROSION MARK NOTED. GROUNDED - YES. REMOVED AND REPLACED #1 ENGINE FRONT SPINNER CONE REF B737-900 AMM 72-21-01-000-801-F00 AND AMM 72-21-01-000-801-F00Dec 8, 2019 · N442AS · Boeing 737990ER · Turbine Engine Air Inlet SectionSDR ASAA2019120971532Circuit Breaker · trippedENG #1 LIGHT ON, ENG #2 DRIVE LIGHT OFF WITH ENGINES SHUT DOWN, BOTH FANS STATIONARY. LIGHTS CHECK GOOD. GROUNDED - YES. FOUND C/B GCU 2 F11 ON P6-4 PANEL POPPED. C/B EXAMINED, NO EVIDENCE OF ARCING OR BURNT CONTACTS. DISCONNECTED DP1206 ON IDG AND JUMPED PIN Dec 7, 2019 · N442AS · Boeing 737990ER · AC Generation SystemSDR ASAA2019111211285Cooler · leakingFOLLOW-UP TO #2 IDG FREQUENT SERVICING. GROUNDED - YES. ACCOMPLISHED STEPS 1-3 AND FOUND #2 IDG AIR/OIL COOLER LEAKING, REMOVED AND REPLACED #2 IDG AIR/OIL COOLER PER B737-900 AMM 24-11-21 LEAK CHECKS GOOD,NO OTHER DEFECTS NOTED-ETOPS SIGNIFICANT SYSTEM, GROUNNov 11, 2019 · N442AS · Boeing 737990ER · Engine Oil Cooler
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