Boeing 747-47UF

Service difficulty reports · 3,116

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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 = '74747UF'
  ORDER BY difficulty_date DESC"

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SDR UIEA201000177Fairing · crackedENG 3 OTBD CORE COWL UPPER AFT AREA FAIRING HAS A CRACK. ON THE AFT UPPER EDGE. DUE TO NO STOCK FOR THE PANEL, DISPOSITION WAS TO ACCOMPLISH A TIME LIMITED REPAIR BY WELDING THE CRACK IAW STANDARD PRACTICES AND REPLACEMENT OF FAIRING WITHIN THE NEXT 2A CHECK.Aug 13, 2009 · N496MC · Boeing 74747UF · Nacelle/Pylon Miscellaneous StructureSDR UIEA201000176Fairing · crackedENG 3 OTBD CORE COWL UPPER AFT AREA FAIRING HAS A CRACK. ON THE AFT UPPER EDGE. DUE TO NO STOCK FOR THE PANEL, DISPOSITION WAS TO ACCOMPLISH A TIME LIMITED REPAIR BY WELDING THE CRACK IAW STANDARD PRACTICES AND REPLACEMENT OF FAIRING WITHIN THE NEXT 2A CHECK.Aug 13, 2009 · N496MC · Boeing 74747UF · Nacelle/Pylon, Main FrameSDR UIEA201000176ASeat Track · crackedMAIN CARGO SIDE DOOR AREA - SEAT TRACK LUG CRACKED AT FS 1806.95 LBL 99 NEXT TO ROLLOUT STOP ASSY. NR 1 POSITION."PERMANENT REPAIR PERFORMED IAW THE SRM 53-00-52-2R-6, REPAIR 6."Aug 13, 2009 · N496MC · Boeing 74747UF · Fuselage, Seat/Cargo Attach FittingsSDR UIEA200900048Warning Message · intermittentENROUTE EICAS STARTER CUTOUT ENG 3 ON/OFF INTERMITTENTLY. ACCOMPLISHED PROCEDURES IAW FIM 80-03-11-00. MESSAGE CLEARED. NO LATCHED FAULTS.Aug 12, 2009 · N412MC · Boeing 74747UF · Central WarningSDR UIEA2009080500001Door · damagedDURING WALK AROUND INSP BEING PERFORMED; GROUND DAMAGE FOUND ON THE BS 1112.1, BS 1170 AIR CONDITIONING ACCESS DOOR 192 HR. THE DAMAGE PENETRATED THROUGH THE HONEYCOMB MATERIAL (REF FIG 1)(PERFORMED A TIME LIMITED REPAIR AS DESCRIBED IN PART 1 WORK INSTRUCTIONAug 5, 2009 · N415MC · Boeing 74747UF · Air Conditioning DoorsSDR UIEA2010080500137Door · damagedEO 4453A264: GROUND DAMAGE FOUND ON THE BS 1112.1-1170 AIR CONDITIONING ACCESS DOOR 192 HR. THE DAMAGE PENETRATED THROUGH THE HONEYCOMB MATERIAL. (PERFORMED A TIME LIMITED REPAIR AS DESCIBED IN PART 1 WORK INSTRUCTIONS. SCHEDULE PART 2 PRIOR TO THE ACCUMULATIAug 3, 2009 · N415MC · Boeing 74747UF · Air Conditioning DoorsSDR UIEA201000181Door · damagedGROUND DAMAGE FOUND ON THE BS 1112.1 - 1170 AIR CONDITIONING ACCESS DOOR 192HR. THE DAMAGE PENETRATED THROUGH THE HONEYCOMB MATERIAL (REF FIG 1.) "TIME LIMITED REPAIR IAW PART 1 WORK INSTRUCTIONS. SCHEDULE PART 2 PRIOR TO THE ACCUMULATION OF 5 CYCLES IN ACC WIAug 3, 2009 · N415MC · Boeing 74747UF · Air Conditioning DoorsSDR UIEA200900044Frame · crackedFOUND CRACK ON THE HORIZONTAL FLANGE OF THE AFT CARGO FRAME UPPER CAP AT STATION 1820 LBL 24. ACCOMPLISHED REPAIR ON HORIZONTAL FLANGE IAW EI NR T2009A53B-806.Jul 24, 2009 · N493MC · Boeing 74747UF · Fuselage Main, FrameSDR UIEA201000164Skin · damagedDURING MX WALKAROUND FOUND DAMAGE TO THE NR 1 ENG. THRUST REVERSER TRANSLATING COWL, EXTERNAL SKIN AT APPROX. 9:00 POSITION. THE DAMAGE IS APPROXIMATELY 12.5" LONG AND 3" WIDE (REF FIG 1). DISPOSITION IS TO PERFORM A TIME LIMITED REPAIR AS DESCRIBED IN PART 1Jul 19, 2009 · N418MC · Boeing 74747UF · Engine Thrust ReverserSDR UIEA200900043Flap Track · damagedNR 5 FLAP TRACK RT SIDE SCRATCHED BY BROKEN CARRIAGE ROLLER. REPAIRED IAW EO T2009A57B-749 REV 00.Jul 11, 2009 · N493MC · Boeing 74747UF · Trailing Edge FlapsSDR UIEA200900042Structure · crackedFUSELAGE LONGERON BOX FAIRING AND STRUCTURE CRACKED AT STA 1372, STR 35L. REPAIRED IAW SRM 51-70-07 FIG 201 AND SRM 51-40-02-06.Jul 2, 2009 · N493MC · Boeing 74747UF · Fuselage Miscellaneous StructureSDR UIEA200900041Structure · crackedFUSELAGE LONGERON BOX FAIRING AND STRUCTURE CRACKED AT STA 1372, STR 35R. REPAIRED IAW SRM 51-70-07 FIG 201 AND 747F SRM 51-40-02-06.Jul 2, 2009 · N493MC · Boeing 74747UF · Fuselage Miscellaneous StructureSDR UIEA200900035Actuator · faultyAT APPROX 20 TO 30 KIAS EVEN POWER SETTING, AIRCRAFT STARTED AN UNCONTROLLED TURN TO THE RIGHT. FULL LEFT RUDDER INPUT HAD NO EFFECT. ABORTED TAKEOFF. PER MCC REQUEST REPLACE RIGHT INBOARD AND OUTBOARD BODY GEAR STEERING ACTUATORS. REPLACED NR 9 AND 15 BRJul 1, 2009 · N418MC · Boeing 74747UF · Steering UnitSDR UIEA200900034Steering Sys · malfunctionedAT APPROX 20 TO 30 KIAS DURING TAKEOFF ACFT STARTED AN UNCONTROLLED TURN TO THE RT. ABORTED TAKEOFF. INSPECTED NLG TIRES FOR WEAR AND LIKE TREAD PATTERN. ALL OK. CHECKED RUDDER TRIM FOR PROPER SETTINGS AND OPERATES OK. CHECKED BRAKE METERING VALVES FOR CLEAJul 1, 2009 · N418MC · Boeing 74747UF · Landing Gear Steering SystemSDR P5CA2009062501601Acm · defectiveIN CRUISE A LOUD RUMBLING WAS HEARD THROUGH THE PACK SYSTEM AND AN ODOR WAS NOTICED COMING THROUGH THE VENTS. CONDITIONAL INSPECTION WAS PERFORMED IAW MM 05-51-56 AND IT WAS CONFIRMED THERE IS A BAD PACK 1 ACM. PACK 1 WAS DEACTIVATED AND DEFERRED IAW MEL 21-Jun 25, 2009 · N416MC · Boeing 74747UF · Cabin Cooling SystemSDR UIEA201000179Skin · damagedLT T/E INBD MID FLAP INBD L/E SKIN PANEL WBL 137.55 WITH A GOUGE HOLE/DAMAGE (ONE FACE SKIN AND HONEYCOMB DAMAGE WITHOUT INTERNAL SKIN DAMAGE MEASURING 1.0 IN X 10.0 IN. "TIME LIMITED REPAIR AS DESCRIBED IN PART 1 WORK INSTRUCTIONS OF EO 4457A195. SCHEDULE REPJun 23, 2009 · N412MC · Boeing 74747UF · Trailing Edge FlapsSDR UIEA201000162Tray · crackedTRAY CRACKED AT STA 1800 IN AFT CARGO COMPT RT SIDE. "DRILL 0.25 DIA STOP HOLE. MAKE 2 REPAIR PLATES WITH 0.071 7075 = TE CLAD SHEET. INSTALL REPAIR PLATES IAW SRM 53-00-53/206."Jun 23, 2009 · N412MC · Boeing 74747UF · Fuselage Miscellaneous StructureSDR UIEA201000161Structure · brokenTHE CORNER AT OTBD AFT L/E WING FLAP WAS BROKEN. (0.5" X 0.5"). 1. "REMOVED THE DAMAGE AS SRM 51-70-17. 2. "LAY-UP REPAIRED THE DAMAGE WITH EA9390A/B RESIN BM 59-3 TYH-2. FABRIC AS SRM 51-70-17. CURED UNDER VACUUM. 3. "SANDED SMOOTH THE REPAIR AREA AS SRM 51-Jun 23, 2009 · N412MC · Boeing 74747UF · Leading Edge DevicesSDR UIEA201000160Skin · gougedLT T/E INBD MID FLAP - INBD L/E SKIN PANEL - WBL 137.55 WITH A GOUGE HOLE/DAMAGE. (ONE FACE SKIN AND HONEYCOMB DAMAGE WITHOUT INTERNAL SKIN DAMAGE). MEASURING 1.0 IN X 10.0 IN. "EA4457A195: DISPOSITION WAS MADE TO PERFORM A TIME LIMITED REPAIR AS DESCRIBED IN Jun 23, 2009 · N412MC · Boeing 74747UF · Trailing Edge FlapsSDR UIEA201000128Aileron · damagedTHE PURPOSE OF THIS EO IS TO RECORD A MAJOR REPAIR. DURING C CHECK INSPECTION BEING PERFORMED AT HKG; DAMAGE WAS FOUND TO THE RIGHT I/B AILERON, O/B AFT CORNER DELAMINATION / DAMAGE. PERMANENT REPAIR PERFORMED IN ACCORDANCE WITH THE 747-400 SRM 51-70-07 FIGUJun 8, 2009 · N498MC · Boeing 74747UF · AileronsSDR UIEA201000127Web · damagedTHE PURPOSE OF THIS EO IS TO RECORD A MAJOR REPAIR. DURING C CHECK INSPECTION BEING PERFORMED AT HKG; DAMAGE WAS FOUND TO THE RIGHT WLG WHEEL WELL BS 1251 RBL 95, FWD CUTOUT WEB DENT / DAMAGE. PERMANENT REPAIR PERFORMED IN ACCORDANCE WITH THE 747-400 SRM 53-Jun 7, 2009 · N498MC · Boeing 74747UF · Wing Miscellaneous StructureSDR UIEA201000126Seat Track · crackedTHE PURPOSE OF THIS EO IS TO RECORD A MAJOR REPAIR. DURING C CHECK INSPECTION BEING PERFORMED AT HKG; DAMAGE WAS FOUND TO THE MAIN DECK BS 1800 LBL 11.0 SEAT TRACK CRACK (REFERENCE FIGURE 1). PERMANENT REPAIR PERFORMED IN ACCORDANCE WITH THE 747-400 SRM 53-0Jun 7, 2009 · N498MC · Boeing 74747UF · Fuselage, Seat/Cargo Attach FittingsSDR UIEA200900033Acm · failedAIR TURN BACK, AFTER TAKEOFF UNABLE TO MAINTAIN CABIN PRESSURE DURING CLIMB. NR 1 PACK ON MEL AND NR 3 PACK FAILED DURING CLIMB. NR 2 PACK WAS UNABLE TO MAINTAIN PRESSURE. REPLACED NR 3 ACM, PERFORMED OPS CHECK, ALL NORMAL.Jun 7, 2009 · N415MC · Boeing 74747UF · Cabin Cooling SystemSDR UIEA201000125Seat Track · crackedTHE PURPOSE OF THIS EO IS TO RECORD A MAJOR REPAIR. DURING C CHECK INSPECTION BEING PERFORMED AT HKG; DAMAGE WAS FOUND TO THE MAIN DECK BS 1850 TO BS 1860, LBL 33 SEAT TRACK CROWN CRACKED (REFERENCE FIGURE 1). PERMANENT REPAIR PERFORMED IN ACCORDANCE WITH THJun 6, 2009 · N498MC · Boeing 74747UF · Fuselage, Seat/Cargo Attach FittingsSDR UIEA201000124Web · crackedTHE PURPOSE OF THIS EO IS TO RECORD A MAJOR REPAIR. DURING C CHECK INSPECTION BEING PERFORMED AT HKG; DAMAGE WAS FOUND TO THE MAIN DECK BS 1220 LBL 103, WL 184 WEB CONSISTING OF A CRACK MEASURING 2.5 IN. X 1.0 INCH (REFERENCE FIGURE 1). PERMANENT REPAIR PERFJun 5, 2009 · N498MC · Boeing 74747UF · Fuselage Miscellaneous StructureSDR UIEA201000129Duct · crackedEO NR 4478A087: DURING ROUTINE INSP OF ACFT N498MC AT HKG "C" CHECK, THE NR 3 LT THRUST REVERSER PRECOOLER DUCT WAS FOUND CRACKED. THE CRACK IS APPROX 8 INCHES IN LENGTH. THE CMM 78-32-02 REPAIR 018 PROVIDES INSTRUCTIONS FOR THE REPAIR OF CRACKS IN WELD JOINTSJun 2, 2009 · N498MC · Boeing 74747UF · Engine Thrust ReverserSDR UIEA201000123Skin · dentedEO 4453A074 RECORDED A DENT TO THE FUSELAGE SKIN AFT OF FWD CARGO DOOR BETWEEN S38 - S39 (24APR2006) WITH AN INITIAL HFEC INSP AND REPEAT INSPECTIONS AT 1,500 FC. DURING C-CHECK BEING PERFORMED ON 01 - 06 JUNE, 2009; INTERIM REPAIR WAS ACCOMPLISHED TO THE FUSJun 2, 2009 · N498MC · Boeing 74747UF · Fuselage Main, Plate/SkinSDR UIEA201000165Skin · dentedDURING WALKAROUND INSP DAMAGE WAS FOUND TO THE FUSELAGE SKIN RT BS 1765, S34 (LAP SPLICE) DENT DAMAGE MEASURING 1.5 IN LONG, 0.500 IN. WIDTH AND 0.045 DEPTH. (REF FIGURE 1). LOCATED 15.0 IN. FWD OF CARGO DOOR CUTOUT AND 7.0 IN ABOVE CARGO DOOR SWITCH CUTOUT. "May 27, 2009 · N418MC · Boeing 74747UF · Fuselage Main, Plate/SkinSDR UIEA201000174Floor Panel · damagedMAIN DECK FLOOR AT STA 1700L FOUND "2 X 1" PUNCTURE. "1. REMOVE THE RELATED FLOOR PANEL FROM STA 1660 TO 1720 REF AMM 25-50-00. REF EO 4453A243 REPAIRED THE DAMAGE WITH BMS5-28 TYPE 19 AND BMS 9-3 TYPE L FABRIC AND EPO CAST 50A19816 RESIN CSRM 53-00-50 REPAIR May 19, 2009 · N492MC · Boeing 74747UF · Fuselage Floor PanelSDR UIEA201000122Support · damagedTHE PURPOSE OF THIS EO IS TO RECORD A MAJOR REPAIR. DURING C CHECK INSPECTION BEING PERFORMED AT HKG; DAMAGE WAS FOUND TO THE RIGHT O/B MID FLAP NR 3 TRAILING EDGE PANEL SUPPORT (I/B OF NR 8 CARRIAGE) CONSISTING OF A SCREW HOLE ELONGATED (REFERENCE FIGURE 1).May 19, 2009 · N415MC · Boeing 74747UF · Trailing Edge FlapsSDR UIEA201000121Support · damagedTHE PURPOSE OF THIS EO IS TO RECORD A MAJOR REPAIR. DURING C CHECK INSPECTION BEING PERFORMED AT HKG; DAMAGE WAS FOUND TO THE LEFT I/B UPPER TRAILING EDGE FIXED PANEL O/B SUPPORT WEB (REFERENCE FIGURE 1). PERMANENT REPAIR PERFORMED IN ACCORDANCE WITH THE 747May 19, 2009 · N415MC · Boeing 74747UF · Aircraft StructuresSDR UIEA200900032Unknown · odorMULTIPLE BLEED OVHT EICAS MESSAGES, COMPLETED QRH PROCEDURES, SMELLED BURNING ODOR. CLOSED LT BLEED SHUTOFF VALVE. STATUS MESSAGE BLEED PRV ENG 2. PERFORMED ENGINE RUN WITH BLEED OFF AND ON. NO BURNING ODOR PRESENT. DISPATCHED THE ACFT WITH HIGH STAGE BLEED May 14, 2009 · N412MC · Boeing 74747UF · Air Distribution SystemSDR UIEA201000120Skin · delaminatedEO 4457A189 WINGS - LT INBD & OTBD FORE FLAP AND OTBD AFT FLAPS. NUMEROUS AREAS OF DAMAGE/DELAMINATION. ACCOMPLISH REPAIR TO THE LT OTBD FORE FLAP, L/E MID SECTION DELAMINATION (3 AREAS) IAW THE SR 57-53-01 FIG 201, RPR 1 TABLE 1 AND SRM 51-70-07 ( REF FIG 1May 11, 2009 · N497MC · Boeing 74747UF · Trailing Edge FlapsSDR UIEA201000119Panel · crackedCABIN - BS 1241 LBL 90 CLOSURE PNL FOUND CRACKED. REPAIRED AS PER BOEING MESSAGE (HKG-TLS-09-0005-03B).May 6, 2009 · N497MC · Boeing 74747UF · Fuselage Miscellaneous StructureSDR UIEA201000118Intercostal · crackedCABIN - BS 1220 LBL 107 BELOW FLOOR INTERCOSTAL WEB FOUND CRACKED. INTERCOSTAL WEB REPAIRED AS PER SRM 51-70-13 FIG 201. RAM FORM 50086.May 6, 2009 · N497MC · Boeing 74747UF · Fuselage Miscellaneous StructureSDR P5CA200904290195Grommet · loosePRE TAXI RUDDER CHECK UNSATISFACTORY. FOUND CABLE GROMMET LOOSE AND STICKING ON PULLEY. GROMMET RESECURED AND OP'S CHECKED OK IAW AMM 27-55-00 AND AMM 20-11-07-074-016.Apr 29, 2009 · N416MC · Boeing 74747UF · Rudder Control SystemSDR UIEA200900027Fan · failedON "TAXI IN" THERE WAS AN ODOR OF ELECTRICAL BURNING IN THE COCKPIT. ALSO, E/E COOLING FAN STATUS MESSAGE. FOUND E/E FAN FAILED AND DEFERRED FAN PER MEL 21-58-4. ALSO, PERFORMED CONDITIONAL INSPECTION PER AMM 05-51-56. NO FURTHER TROUBLE FOUND. NO PARTS CApr 24, 2009 · N496MC · Boeing 74747UF · Air Distribution FanSDR UIEA200900026AAFire Warning · false activationIN FLIGHT AT FL330 APPROX 2:20 WITH THE APU SWITCH OFF AND THE APU SHUTDOWN, AN INTERMITTENT FIRE APU WARNING OCCURRED BRIEFLY AND THEN CLEARED ITSELF. THE APU HANDLE WAS PULLED AS PRECAUTION PER THE AMM. CHECKED CMC AND FOUND CMC MESSAGE INTERMITTENT. CHECApr 19, 2009 · N498MC · Boeing 74747UF · Fire DetectionSDR UIEA201000117Skin · damagedTHE PURPOSE OF THIS EO IS TO RECORD A MAJOR REPAIR. DURING C-CHECK INSP; DAMAGE WAS FOUND TO THE RT INBD AILERON UPPER SURFACE OTBD T/E CORNER MEASURING 0.5 IN. X 1.0 IN. (REF FIG 1). PERMANENT REPAIR PERFORMED IAW THE SRM 51-70-06 FIG 5.1. ACCOMPLISH REPAIApr 15, 2009 · N496MC · Boeing 74747UF · AileronsSDR UIEA201000116Skin · delaminatedACCOMPLISH REPAIR TO THE LT INBD AFT FLAP, LOWER SURFACE INBD FWD AREA OF DELAMINATION IAW SRM 57-53-01 FIG 201,SRM 51-70-07 (REF FIG 1). ACCOMPLISH REPAIR TO THE RT INBD FORE FLAP, INBD T/E LOWER SURFACE DAMAGE IAW SRM 57-53-01, FIG 201, RPR 1 TABLE I AND THEApr 13, 2009 · N496MC · Boeing 74747UF · Trailing Edge FlapsSDR UIEA200900025Skin · puncturedLT WING INBOARD MID FLAP LOWER SKIN HAS ONE 0.500 INCH PUNCTURE AT WBL 198.55. PERMANENT REPAIRED AS PER N747-400 SRM 57-53-01-2R-1 AND 51-70-10-2R-1. REF: ATLAS AIR EO 4457A184.Apr 11, 2009 · N498MC · Boeing 74747UF · Trailing Edge FlapsSDR UIEA200900026Eiu · malfunctionedCREW REPORTED LEFT EIU INOP WITH SEVERAL EICAS MESSAGES AND MULTIPLE STATUS MESSAGES. SWAPPED LEFT AND CENTER EIU PLACED ON DEFERRAL PER MEL 31-61-6.Apr 11, 2009 · N492MC · Boeing 74747UF · Engine Indicating SystemSDR UIEA200900024Skin · puncturedLT WING INBOARD AFT FLAP LOWER SKIN HAS ONE 0.750 INCH PUNCTURE AT WBL 243.30 AND ONE 0.250 INCH PUNCTURE AT WBL 251.30. PERMANENT REPAIRED AS PER B747-400 SRM 57-53-01-2R-1 AND 51-70-10-2R-1, REF, ATLAS AIR EO 4457A184.Apr 11, 2009 · N498MC · Boeing 74747UF · Trailing Edge FlapsSDR UIEA200800026AEiu · malfunctionedCREW REPORTED LEFT EIU INOP WITH SEVERAL EICAS MESSAGES AND MULTIPLE STATUS MESSAGES. SWAPPED LEFT AND CENTER EIU PLACED ON DEFERRAL PER MEL 31-61-6.Apr 11, 2009 · N492MC · Boeing 74747UF · Central ComputersSDR UIEA201000180Floorboard · damagedRT MAIN DECK BS 1500 FLOORBOARD DAMAGED. "TIME LIMITED REPAIR AS DESCRIBED IN PART 1 WORK INSTRUCTIONS OF EO 4453A238, INITIATE INSPECTIONS AT EVERY 5 FLIGHT CYCLES. SCHEDULE PERMANENT REPAIR AT THE NEXT A CHECK AFTER PART 1 IN ACC WITH THE SRM 53-00-50 FIG 20Apr 10, 2009 · N412MC · Boeing 74747UF · Fuselage Floor PanelSDR UIEA200900023Start Valve · malfunctionedDIVERSION: AFTER TAKEOFF EICAS MESSAGE "START CUTOUT 3" DISPLAYED AT APPROX 11,000 FEET, ALSO STATUS MESSAGE "ENG-3 START VALVE". TRANSFERRED TO DMI M09-016 PER MEL 80-11-1. START VALVE TO BE OPERATED MANUALLY UNTIL FINAL REPAIR IS PERFORMED.Mar 28, 2009 · N408MC · Boeing 74747UF · Engine Start Valves/ControlsSDR UIEA200900022Support Fitting · failedDENT ON OUTBOARD AFT FLAP NOSE AND MID FLAP DUE TO OUTBOARD FLAP FITTING FAILURE. REPAIRED PER SRM 51-70-17. REPLACED SUPPORT ARM.Mar 25, 2009 · N499MC · Boeing 74747UF · Trailing Edge FlapsSDR UIEA201000175Linkage · damagedRT OTBD MID TO AFT FLAP SUPPORT LINKAGE STRUCTURE PN 65B39149-19/21 WAS FOUND DAMAGED, WITH A GOUGE/DENT. "AFTER BLEND OUT THE REWORKED AREA MEASURED 0.500 IN WITH A 0.013 IN DEPTH. IN ADDITION, INSPECTION OF THE DAMAGE WAS PERFORMED AS DESCRIVED IN THE PART 1Mar 22, 2009 · N493MC · Boeing 74747UF · Trailing Edge FlapsSDR UIEA201000109Flap Track · damagedEO DOCUMENTS A MAJOR REPAIR. DURING D-CHECK, DAMAGE WAS FOUND TO 1 FASTENER COUNTERSUNK TO A DEEPER PROFILE (0.730"/100 DEGREE) BEYOND OHM REQUIREMENTS OF THE ORIGINAL DESIGN DIMENSION ( 0.645-0.675" /100 DEGREE REF FIG 1) OF NR 8 FLAP TRACK (PN:65B17061-116, Mar 11, 2009 · N492MC · Boeing 74747UF · Trailing Edge FlapsSDR UIEA200900021Switch · failedBLOCK TURN BACK DURING TAXI OUT CREW REPORTED BRAKE STATUS MESSAGE DISPLAYED. TROUBLESHOT TO PARKING BRAKE PEDESTAL SWITCH. REPLACED SWITCH OPS CHECKED NORMAL.Mar 9, 2009 · N493MC · Boeing 74747UF · Landing Gear Brake System
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