Boeing 747-121

Service difficulty reports · 3,030

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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 = '747121'
  ORDER BY difficulty_date DESC"

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SDR UPS96420104Switch · dirtyINSPECTION TYPE: C. AFT CARGO DOOR LIGHT ILLUMINATED WHEN REACHING 2.4 PSI DIFF. REQUIRED AIR TURN BACK. CLEANED AFT CARGO DOOR LIGHT SWITCHES, CYCLED DOOR OPEN AND CLOSED, PRESSURIZED AIRCRAFT TO 7.0 PSID. OPS CHECKED NORMAL.May 15, 1996 · N681UP · Boeing 747121 · Door Warning SystemSDR TWRA9628Engine · failedDURING CRUISE, NR 1 ENGINE HAD A STEADY STATE STALL AT FLT LEVEL 350 FEET, THRUST WAS REDUCED AND STABILIZED, THEN PUSHED THROTTLE TO 1.36 EPR WHEN ENGINE STALLED AGAIN. ENGINE POWER WAS MAINTAINED AT IDLE FOR REMAINDER OF FLT. AIRCRAFT DIVERTED TO MANCHESTEMay 13, 1996 · N604FF · Boeing 747121 · Engine (Turbine/Turboprop)SDR TWRA9626Turbine · failedAT 13,000 FEET AFTER TAKEOFF LOUD BOOM WAS HEARD AND CONFIRMED ENGINE ON NR 3 ENGINE. AFTER RETURN TO JED INITIAL INSPECTION FOUND METAL IN TAILPIPE. BORESCOPE INSPECTION FOUND SECOND STAGE TURBINE FAILURE. ENGINE TO BE REPLACED. (M)May 10, 1996 · N604FF · Boeing 747121 · Turbine SectionSDR UPS96420136Rib · corrodedINSPECTION TYPE: MODERATE CORROSION ON LOWER ANGLE ON RIB AT STABILIZER, BL 372 LEFT. CORRODED ANGLE REMOVED. REPAIR CARRIED OUT PER QUERY NOTE 3/3/96 AND SRM 51-40-04, FIGURE 2.May 8, 1996 · N691UP · Boeing 747121 · Horizontal Stabilizer, Spar/RibSDR UPS96420027Skin · damagedINSPECTION, FWD SIDE OF LT WING I/B TRAILING EDGE FLAP HAS TWO, .375 INCH DIA HOLES, 5 INCHES APART, CORE NOT DAMAGED. PER SRM 51-40-06 PG 30A APPLIED SPEED TAPE AND DEF UNDER D-NOTE: THIS DEF GOOD FOR 20 FLT HOURS PER SRM 51-40-06 D109465 ASSIGNED.May 5, 1996 · N681UP · Boeing 747121 · Trailing Edge FlapsSDR UPS96420026Skin · crackedINSPECTION, I/B TRAILING EDGE WING PANEL HAS A TWO FT CRACK ON BOTTOM OF PANEL, CAUSED BY DAMAGED O/B MLG FOLLOW UP DOOR. L/E WRITTEN UP ON ITEM 1 LOG PAGE 751782. INSTALLED SPEED TAPE, AWAITING EO FOR SAID INTRIM REPAIR. DEF PER NR 747-5700-8279A D109480 AMay 5, 1996 · N681UP · Boeing 747121 · Wing, Plate/SkinSDR EIAA9608Card Connector · looseDOV - ON DESCENT INTO DOV, GOT APU FIRE INDICATION (APU NOT RUNNING). COMPLETED EMERGENCY ITEMS AFTER APU FIRE TEST WOULD NOT TEST. PULLED B-LOOP CIRCUIT BREAKER. LIGHT WENT OUT. A-LOOP FIRE TEST OK (SUSPECT FALSE FIRE INDICATION). CHECKED BOTH APU, 'A' AApr 29, 1996 · N480EV · Boeing 747121 · Fire DetectionSDR 96ZZZM1045Spar · crackedDURING PYLON MODIFICATION ON THIS A/C, AN INSPECTION OF THE LEFT WING FRONT SPAR REVEALED CRACKS AT FOUR LOCATIONS AT WING STATION 669.5. REF ATTACHED QUERY NOTE S/N 16/95 FOR DETAILS.Apr 16, 1996 · N691UP · Boeing 747121 · Wing SparSDR UPS96405891Fire Det · inoperativeCREW REPORTED, APU FIRE INDICATION DURING CRUISE. A-LOOP OF FIRE DETECT SYS SELECTED 'B', NO FURTHER INDICATIONS. APU WAS OFF DURING THE ENTIRE EVENT. DEF ITEM PER 26-7, MMOC J SHULTZ ASSIGNED CTRL. NR M-108335, PLACARD A-LOOP SYS INOP AND SELECTED 'B' LOOPApr 7, 1996 · N681UP · Boeing 747121 · Fire DetectionSDR TWRA9619Engine · damagedNR 1 ENGINE SHUTDOWN IN FLIGHT DUE TO LOUD BANG. RETURNED TO LIMA, PERU. NR 1 ENGINE EXPERIENCED TURBINE FAILURE. ENGINE REPLACED. (M)Apr 6, 1996 · N617FF · Boeing 747121 · Engine (Turbine/Turboprop)SDR UPS96405748Support · corrodedWHILE IN AMS FOR C-CHECK, MAINTENANCE REPORTED LT WING LOWER SURFACE FOUND CORROSION AT O/B SUPPORT JACK POINT WS 1280. REMOVED AND REPAIRED CORROSION DAMAGE IAW SRM 51-10-01, 57-30-01 AND UPS EFN 747-57-0322.Mar 21, 1996 · N681UP · Boeing 747121 · Wing Miscellaneous StructureSDR UPS96405723Skin · corrosionWHILE IN AMS FOR C-CHECK, MAINTENANCE REPORTED RT WING SKIN ABOVE UPPER CHORD IS BULDGED AT WS 865. FOUND CORROSION BETWEEN UPPER CHORD AND UPPER SKIN. REPAIR APPROVED PER UPS E.O. EFN 747-57-0312.Mar 19, 1996 · N681UP · Boeing 747121 · Fuselage Main, Plate/SkinSDR UPS96405722Skin · corrosionWHILE IN AMS FOR C-CHECK, MAINTENANCE REPORTED RT WING UPPER SIDE STRIP OF RABBET AREA IS BULGED AT WS 975. FOUND CORROSION. REPAIRED IAW DFX 96-062, ISSUE NR 2 APP. PER UPS E.O. EFN 747-57-0313.Mar 19, 1996 · N681UP · Boeing 747121 · Wing, Plate/SkinSDR UPS96405721Skin · corrosionWHILE IN AMS FOR C-CHECK, MAINTENANCE REPORTED RT WING UPPER SIDE STRIP OF RABBET AREA IS BULGED AT WS 440. FOUND CORROSION. REPAIRED IAW DFX 96-064, ISSUE NR 2 APP. PER UPS E.O. EFN 747-57-0315.Mar 19, 1996 · N681UP · Boeing 747121 · Wing, Plate/SkinSDR UPS96405720Skin · corrosionWHILE IN AMS FOR C-CHECK, MAINTENANCE REPORTED RT WING UPPER SIDE STRIP OF RABBET AREA IS BULGED AT WS 1140. SUBMITTER SUSPECTS CORROSION. REPAIRED IAW DFX 96-063, ISSUE NR 2 APP. PER UPS E.O. EFN 747-57-0314.Mar 19, 1996 · N681UP · Boeing 747121 · Wing, Plate/SkinSDR UPS96405678Skin · corrodedWHILE IN FOR C-CHECK AT AMS, MAINTENANCE REPORTED RT WING UPPER SIDE FOUND CORROSION AROUND FASTENER HEADS AT WS 460. REWORKED CORROSION PER SRM 51-10-01. REWORKED AREA OUT OF LIMITS PER SRM 57-30-01 FIG 4. REWORKED WING NOSE PER SRM 57-30-04 FIG 2.Mar 14, 1996 · N681UP · Boeing 747121 · Wing, Plate/SkinSDR UPS96405677Skin · corrodedWHILE IN FOR C-CHECK AT AMS, MAINTENANCE REPORTED RT WING UPPER SIDE FOUND CORROSION ROUND FASTENER HEADS AT WS 500. REWORKED CORROSION PER SRM 51-10-01. REWORKED AREA OUT OF LIMITS PER SRM 57-30-01 FIG 4. REWORKED WING NOSE PER SRM 57-30-04 FIG 2.Mar 14, 1996 · N681UP · Boeing 747121 · Wing, Plate/SkinSDR UPS96405676Skin · corrodedWHILE IN FOR C-CHECK AT AMS, MAINTENANCE REPORTED RT WING UPPER SIDE FOUND CORROSION ROUND FASTENER HEADS AT WS 550. REWORKED CORROSION PER SRM 51-10-01. REWORKED AREA OUT OF LIMITS PER SRM 57-30-01. REWORKED WING NOSE PER SRM 57-30-04 FIG 2.Mar 14, 1996 · N681UP · Boeing 747121 · Wing, Plate/SkinSDR UPS96405727Skin · crackedWHILE IN AMS FOR C-CHECK, MAINTENANCE REPORTED CRACK IN EQUIP COOLING OUTLET, BS 575 LT, STR 44 AT AFT SIDE. CRACK LENGTH APPROXIMATELY 1.25 INCHES. REPAIRED SKIN IAW KLM-DFX-96-061, APPROVED PER UPS EFN-747-53-0753.Mar 12, 1996 · N681UP · Boeing 747121 · Fuselage Main, Plate/SkinSDR UPS96405718Web · crackedWHILE IN AMS FOR C-CHECK, MAINTENANCE REPORTED WING-TO-BODY FAIRING SUPPORT STRUCTURE, CRACKED FRAME REINFORCEMENT WEB LOWER SIDE, RBL 104, BS 1225. REMOVED DAMAGED SECTION OF WEB AND REPAIRED WEB IAW SRM 51-40-02.Mar 12, 1996 · N681UP · Boeing 747121 · Aerodynamic FairingsSDR UPS96405745Frame · delaminatedWHILE IN AMS FOR C-CHECK, MAINTENANCE REPORTED WING-TO-BODY FAIRING SUPPORT STRUCTURE, FOUND LOWER CHORD FRAME DELAMINATED DUE TO CORROSION AT BS 987.35, RBL 57 AND RBL 68. REPLACED FRAME LOWER CHORD IAW SRM 51-30-02.Mar 11, 1996 · N681UP · Boeing 747121 · Fuselage Main, FrameSDR TWRA9611Fuel Filter · contaminatedON MARCH 11, 1996, AIRCRAFT, FLIGHT 42, ON DESCENT FROM FL 350 TO FL 330 EXPERIENCED A NR 1 ENGINE SHUT DOWN DUE TO NO THROTTLE RESPONSE. ENGINE WAS RESTARTED AT FL 330, AIRCRAFT LANDED WITH NO FURTHER INCIDENTS. UPON LANDING, MAINTENANCE FOUND FUEL FILTER CMar 11, 1996 · N604FF · Boeing 747121 · Engine Fuel DistributionSDR UPS96405747Frame · delaminatedWHILE IN AMS FOR C-CHECK, MAINTENANCE REPORTED WING-TO-BODY FAIRING SUPPORT STRUCTURE, FOUND FRAME/INTERCOSTAL LOWER CHORD DELAMINATED/CORRODED AT LBL 57, BS 1008, INBOARD, AND BS 992, OUTBOARD. REMOVED DAMAGED SECTION FROM LOWER CHORD AND REPAIRED LOWER IAW Mar 7, 1996 · N681UP · Boeing 747121 · Fuselage Main, FrameSDR UPS96405744Frame · corrosionWHILE IN AMS FOR C-CHECK, MAINTENANCE REPORTED WING-TO-BODY FAIRING SUPPORT STRUCTURE, FOUND DELAMINATION AND CORROSION ON FRAME LOWER CHORD AT BS 987.35, LBL 24 AND LBL 40. LATCH FILLERS DELAMINATED AT LBL 14 AND LBL 52. REPLACED FRAME LOWER CHORD IAW SRM 5Mar 7, 1996 · N681UP · Boeing 747121 · Fuselage Main, FrameSDR UPS96405719Web · corrosionWHILE IN AMS FOR C-CHECK, MAINTENANCE REPORTED WING-TO-BODY FAIRING SUPPORT STRUCTURE, CORROSION ON FRAME WEB AND LOWER CHORD AT BS 920, LBL 0/17 AND LBL 47. REMOVED CORROSION PER SRM 51-10-01 ON WEB. REPAIRED LOWER CHORD PER SRM 53-50-04, FIG 2.Mar 7, 1996 · N681UP · Boeing 747121 · Aerodynamic FairingsSDR UPS96405705Hinge Plates · crackedWHILE IN AMS FOR C-CHECK, MAINTENANCE REPORTED WING TO BODY FAIRING SUPP STRU/ACFT BAY DOORS, FOUND HINGE POINT ATTACH PLATES CRACKED DUE TO DELAMINATION OF SHIMS BETWEEN ATTACH PLATES AND KEEL BEAM STRUCTURE LBL 8 BS 1010 AND BS 1033. REPLACED HINGE POINT ATMar 7, 1996 · N681UP · Boeing 747121 · Fuselage Miscellaneous StructureSDR UPS96405668Stringer · crackedWHILE IN AMS FOR C-CHECK, MAINTENANCE REPORTED CRACKED STRINGER AT BS 980 5-38 LT. REPAIRED STRINGER IAW SRM 53-10-03.Mar 7, 1996 · N681UP · Boeing 747121 · Fuselage Main, Longeron/StringerSDR UPS96405749Latch Support · corrodedWHILE IN AMS FOR C-CHECK, MAINTENANCE REPORTED FOUND CRACK IN AFT CARGO DOORWAY LOWER. SILL LATCH NR 10 INSPECTION PERFORMED ACC NDT MANUAL D6-7170, PART 6 CHAPTER 51-00-00. REPLACED TRUSS AND LATCH SUPPORT FITTING AT POS NR 10 PER EO B747-5340-0191 APP D. Mar 6, 1996 · N681UP · Boeing 747121 · Cargo/Baggage DoorsSDR UPS96405746Frame · crackedWHILE IN AMS FOR C-CHECK, MAINTENANCE REPORTED FINDING CRACK IN UPPER FLANGE OF FRAME AT BS 2220 NEAR S-40 LT. STOP-DRILLED CRACK AND REPAIRED FRAME UPPER FLANGE IAW TO SRM 51-40-03.Mar 6, 1996 · N681UP · Boeing 747121 · Fuselage Main, FrameSDR UPS96405704Angle · crackedWHILE IN AMS FOR C-CHECK, MAINTENANCE REPORTED AREA AFT OF BULK CARGO COMP, CRACKS WERE FOUND IN INNER ANGLE OF FRAME UPPER FLANGE, DUE TO CORROSION AT BS 2200, NEAR S-36 RT. REPLACED INNER ANGLE OF FRAME UPPER FLANGE AS PER SRM 51-30-02.Mar 6, 1996 · N681UP · Boeing 747121 · Fuselage Miscellaneous StructureSDR UPS96405614Engine · failedCREW REPORTED EN ROUTE TO YQX, NR 2 ENGINE FAILED AT 16:21Z. N2 SEIZED, EGT PEAKED AT 935 DEGREES. CREW ACCOMPLISHED ALL APPLICABLE CHECKLIST PROCEDURES PER AOM. PERFORMED UNEVENTFUL LANDING AT GANDER, NEWFOUNDLAND, 17:47Z.Mar 6, 1996 · N682UP · Boeing 747121 · Engine (Turbine/Turboprop)SDR UPS405533Release Mech · inoperativeMAINTENANCE REPORTED, FLIGHT DECK OVERHEAD ESCAPE HATCH WILL NOT UNLOCK AND OPEN. RESECURED LOOSE LINKAGE IN FLIGHT DECK OVERHEAD ESCAPE HATCH DOOR, OPS CHECKS NORMAL.Feb 18, 1996 · N683UP · Boeing 747121 · Emergency EquipmentSDR UPS405531Shear Ties · crackedWHILE IN AMS FOR C-CHECK MAINTENANCE REPORTED, FOUND 3 CRACKED SHEAR TIES AT BS 1980 BETWEEN STR 46 TO 50 LBL. REPAIRED SHEAR TIES IAW SRM 53-10-4 FIG 41.Feb 16, 1996 · N691UP · Boeing 747121 · Fuselage Miscellaneous StructureSDR UPS405530Fittings · elongated holesWHILE IN AMS FOR C-CHECK MAINTENANCE REPORTED, LT WING O/B AILERON, 4 ATTACHMENT FITTINGS HOLES ARE ELONGATED AT WS 1308, 1423, 1485 AND 1548. REPLACED HINGE FITTINGS IAW SRM 51-30-02.Feb 16, 1996 · N691UP · Boeing 747121 · AileronsSDR UPS405517Chord · corrodedWHILE IN AMS FOR C-CHECK, MAINTENANCE REPORTED RT WING L/E STRIP OF RABBET AREA IS BULGED AT WS 1520, CORROSION FOUND ON UPPER CHORD. REWORKED CORROSION ON UPPER CHORD AND REPAIRED UPPER CHORD ACC TO KLM DFX 96-034 APPROVEL PER UPS EFN 747-57-0307.Feb 15, 1996 · N691UP · Boeing 747121 · Wing Miscellaneous StructureSDR UPS405513Frame · corrosionWHILE IN AMS FOR C-CHECK, MAINTENANCE REPORTED CORROSION ON UPPER CHORD OF FRAME AT BS 2000 RBL 45. REMOVED CORROSION FROM UPPER CHORD OF FRAME ACC SRM 51-10-01, WITHIN LIMITS OF SRM 53-10-09.Feb 15, 1996 · N691UP · Boeing 747121 · Fuselage Main, FrameSDR UPS405512Shear Ties · crackedWHILE IN AMS FOR C-CHECK, MAINTENANCE REPORTED SHEAR TIES ARE CRACKED AT BS 2240 BETWEEN STR 47 AND 48 RBL AND BETWEEN STR 47 AND 48 LBL. REPAIRED SHEAR TIES AT BS 2240 ACC SRM 53-10-04.Feb 15, 1996 · N691UP · Boeing 747121 · Fuselage Miscellaneous StructureSDR UPS405511Angle · crackedWHILE IN AMS FOR C-CHECK, MAINTENANCE REPORTED CRACKS IN REINFORCEMENT ANGLE IN TOP OF FRAME AT BS 1960 LBL 53. REPLACED REINFORCEMENT ANGLE AT BS 1960 LBL 53 ACC SRM 51-20-01 AND 51-30-02.Feb 15, 1996 · N691UP · Boeing 747121 · Fuselage Miscellaneous StructureSDR P5CA9600141Skin · delaminatedFOUND SMALL AREA OF LEFT OUTBOARD ELEVATOR T/E DELAMINATED. REPAIRED BOTH TOP AND BOTTOM ELEVATOR T/E IAW SRM 51-40-12.Feb 15, 1996 · N830FT · Boeing 747121 · Elevator, Plate/SkinSDR P5CA9600140Skin · delaminatedFOUND LEFT INBOARD ELEVATOR, INBOARD T/E CORNER DELAMINATED. REPAIRED IAW SRM 51-40-12.Feb 15, 1996 · N830FT · Boeing 747121 · Elevator, Plate/SkinSDR P5CA9600139Exhaust Sleeve · bentFOUND NR 1 ENGINE EXHAUST SLEEVE INNER T/E SKIN BENT AT 8 O'CLOCK POSITION. STRAIGHTENED AS NEEDED IAW SRM 54-10-02.Feb 15, 1996 · N830FT · Boeing 747121 · Engine Exhaust SystemSDR P5CA9600138Exhaust Sleeve · wornFOUND NR 2 ENGINE EXHAUST SLEEVE OUTER SKIN LEADING EDGE WORN AT 7 O'CLOCK POSITION. REMOVED OLD DOUBLER, MANUFACTURED AND INSTALLED NEW DOUBLER IAW SRM 51-10-01.Feb 15, 1996 · N830FT · Boeing 747121 · Engine Exhaust SystemSDR P5CA9600137Spar · corrodedFOUND LEVEL ONE SURFACE CORROSION ON LEFT WING FRONT SPAR UPPER CHORD CAP LOWER SURFACE, AT FS 1395 AFT OF NR 3 LED. REMOVED CORROSION IAW SRM 51-10-01.Feb 15, 1996 · N830FT · Boeing 747121 · Wing SparSDR P5CA9600136Skin · delaminatedFOUND RIGHT WING O/B FOREFLAP LOWER SURFACE DELAMINATED, 6 INCHES BY 6 INCHES. REMOVED DAMAGE, FABRICATED FIBERGLASS REPAIR IAW SRM 51-40-15.Feb 15, 1996 · N830FT · Boeing 747121 · Trailing Edge FlapsSDR UPS405509Shear Tie · corrodedWHILE IN AMS FOR C-CHECK, MAINTENANCE REPORTED CORRODED SHEAR TIE PROFILE ON AFT SIDE OF SHEAR TIE, AT BS 2180 LBL BETWEEN STR 42 AND 43. REPLACED SHEAR TIE PROFILE ACC SRM 51-20-01 AND 51-30-02.Feb 14, 1996 · N691UP · Boeing 747121 · Fuselage Miscellaneous StructureSDR UPS405463Fitting · elongatedWHILE IN AMS FOR C CHECK, MAINTENANCE REPORTED LT WING O/B AILERON ATTACH FITTINGS HAVE ELONGATED HOLES AT W/S 1308, 1423, 1485, AND 1548. REPLACED FITTINGS PER SRM 51-30-02.Feb 14, 1996 · N691UP · Boeing 747121 · AileronsSDR UPS405461Shear Tie · crackedWHILE IN AMS FOR C CHECK, MAINTENANCE REPORTED 3 CRACKED SHEAR TIES IN BULK CARGO COMP. AT BS 2080 BETWEEN STR 50 TO 48 LBL AND RBL BETWEEN STR 49-50. REPAIRED PER SRM 53-10-04, FIG. 41.Feb 13, 1996 · N691UP · Boeing 747121 · Fuselage Miscellaneous StructureSDR UPS405457Shear Tie · crackedWHILE IN AMS FOR C CHECK, MAINTENANCE REPORTED CRACKED SHEAR TIE AT B.S. 2140, STR. 49-50 LT. REPAIRED CRACK PER SRM 53-10-04,, FIG. 1.Feb 13, 1996 · N691UP · Boeing 747121 · Fuselage Miscellaneous StructureSDR UPS405437Stringer · corrosionWHILE IN FOR C-CHECK MAINTENANCE REPORTED, FOUND IN BULK CARGO COMP AT BS 2156 STR 46 RBL CORROSION IN STRINGER. REPLACED STR BETWEEN BS 2150 AND 2170 IAW SRM 53-10-03 FIG 1 AND SRM 51-30-02.Feb 12, 1996 · N691UP · Boeing 747121 · Fuselage Main, Longeron/StringerSDR UPS405431Shear Tie · crackedWHILE IN FOR C-CHECK MAINTENANCE REPORTED, 3 SHEAR TIES CRACKED AT BS 2100 BETWEEN STR 4 TO 50 LBL. REPAIRED PER SRM 53-10-04 FIG 41.Feb 12, 1996 · N691UP · Boeing 747121 · Fuselage Miscellaneous Structure
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