Boeing 747-2D7B

Service difficulty reports · 726

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  FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet'
  WHERE aircraft_model_key = '7472D7B'
  ORDER BY difficulty_date DESC"

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SDR UIEA2011080500447Spar · corrodedRT INBD AFT FLAP MOST OTBD MIDDLE EDGE AREA CORROSION FOUND. CORROSION AREA TRIMMED AWAY AND REPAIR CARRIED OUT IAW HRS NR R57-50-37178 RVC REV B AND EO 4757A519 PART 1.Aug 5, 2011 · N524MC · Boeing 7472D7B · Trailing Edge FlapsSDR UIEA2011080400416Nozzle · crackedDURING AN ENGINE CHANGE AT AN A-CHECK, MX FOUND 3 EA CRACKS ON THE NR 4 ENGINE FIXED COWL EXHAUST NOZZLE FOWARD FLANGE CORE COWL SUPPORT ASSY (REF FIGURE 1). REPAIRED IAW EO 4778A148.Aug 4, 2011 · N524MC · Boeing 7472D7B · Engine Collector/Tailpipe/NozzleSDR UIEA2011080300417Frame · chafedINSPECTION VISUALLY FOUND CHAFING DAMAGE ON FRAME PN 65B04600-7 AT STA 1980 AND COMMON TO STRINGERS 22R AND 23 R. THIS WAS DOCUMENTED ON NRC 51305. (THE DAMAGE WAS REPAIRED BY BLENDING OUT THE CHAFE MARKS. THE BLENDED AREAS WERE HFEC INSPECTED TO ENSURE CRACKAug 3, 2011 · N524MC · Boeing 7472D7B · Fuselage Main, FrameSDR UIEA2011080200427Frame · crackedDURING C4/A6 CHECK, DETECTED 6 EA CRACKS ON THE FRAME STRAP FASTENER HOLES; 2 EA CRACKS ON THE FWD INNER CHORD FASTENER HOLES; 3 EA CRACKS ON THE AFT INNER CHORD FASTNER HOLES AND 2 EA CRACKS ON THE DOOR REVEAL PANEL FASTENER HOLES. THE DETAIL OF THE CRACK FIAug 2, 2011 · N524MC · Boeing 7472D7B · Fuselage Main, FrameSDR UIEA2011080200422Frame · crackedDURING C4/A6 CHECK, INSPECTION DETECTED 2 EA CRACKS, APPROX 0.50 INCH LONG RUNNING INBD AND 1.8 INCHES LONG RUNNING OTBD AT S-23L CUTOUT AND ANOTHER CRACK APPROX 0.50 INCH LONG, RUNNING INBD AT S-24AL CUTOUT ON THE LT SIDE, BS 380 FRAME.Aug 2, 2011 · N524MC · Boeing 7472D7B · Fuselage Main, FrameSDR UIEA2011080100434Pressure Panel · crackedDURING C4/A6 CHECK, REVEALED CRACKS ON BOTH BS1240 PRESSURE DECK CLOSEOUT PANELS AS SHOWN IN FIG 1:- RT SIDE (RBL 75.92 TO 98.58): CRACK WAS REPORTED AT 0.5" LONG, ALL DATA WAS RECORDED IN RAM 25 - NRC 512309. REPAIRED BOTH PANELS USING SB 747-53-2329R2, FIGAug 1, 2011 · N524MC · Boeing 7472D7B · Fuselage Main, BulkheadSDR UIEA2011080100433Pressure Panel · crackedDURING THE PRESENT C4/A6 CHECK, INSPECTION ON THE DATUM ACFT REVEALED CRACKS ON BOTH BS1240 PRESSURE DECK CLOSEOUT PANELS AS SHOWN IN FIGURE 1:- LT SIDE (LBL 75.92 TO 98.58): CRACK WAS REPORTED AT 3" LONG, ALL DATA WAS RECORDED IN NRC 512291. REPAIRED BOTH PAAug 1, 2011 · N524MC · Boeing 7472D7B · Fuselage Main, BulkheadSDR UIEA2011080100414Stringer · crackedREPAIR DOUBLER WAS REMOVED TO FACILITATE A REPAIR TO STRINGER 27L. THE STRINGER CRACK WAS COMMON TO THE EXISTING EXTERNAL REPAIR DOUBLER BETWEEN STRINGERS 26L AND 28L. THIS WAS DOCUMENTED ON NRC FVY516326. THE INITAL REPAIR DOUBLER WAS EVALUATED AND HAD SUPPLEAug 1, 2011 · N524MC · Boeing 7472D7B · Fuselage Main, Longeron/StringerSDR UIEA2011073100400Fuel Filter · failedDURING CRUISE, NR 2 ENG ROLLED BACK TO IDLE. NO RESPONSE TO THROTTLE MOVEMENTS. APPROX 5 SEC LATER OIL PRESS DROPPED TO ZERO QTY OK. TROUBLESHOT IAW MM FIM 71-00-42 CHECKED CDP TUBES, POWER LEVER CABLE, CHIP DETECTORS, FUEL FILTER- N.T.F PERFORMED VSV-VBV RJul 31, 2011 · N523MC · Boeing 7472D7B · Fuel Controlling SystemSDR UIEA2011073100388Structure · crackedDURING WALK AROUND CHECK, MX FOUND 2EA CRACKS AT 7 O'CLOCK POSITION ON THE AFT CENTER BODY ON THE NR 2 ENGINE. 1EA CRACK MEASURING 1.25 INCHES AND 1EA CRACK MEASURING APPROX 1 INCH REF FIGURE 1. DISPOSITION WAS MADE TO STOP DRILL THE CRACKS USING STANDARD PRJul 31, 2011 · N523MC · Boeing 7472D7B · Engine Exhaust SystemSDR UIEA2011072800435Skin · corrodedDURING THE "C4 PLUS A6 CHECK, CORROSION DAMAGE WAS DETECTED AT THE UPPER SURFACE OF RT WING LOWER SKIN PANEL BETWEEN WS 1289 - WS 1312. THE CORROSION DAMAGE WAS SPREAD OVER A WIDTH OF 15" WITH A DEPTH OF 3" AS DOCUMENTED IAW NRC 50723. AFTER BLENDING, THE REJul 28, 2011 · N524MC · Boeing 7472D7B · Wing, Plate/SkinSDR UIEA2011072800394Mount · crackedDURING INSP OF THE NR 4 PYLON REAR ENGINE MOUNT NAC STA 270 BULKHEAD, 1 CRACK WAS FOUND ON THE SUBJECT UPPER SIDE RT BULKHEAD CHORD (PN 65B94107-54) FROM THE MOST INBD FLANGE TOWARDS THE SECOND FASTENER HOLE. THE CRACK IS APPROX 1.72" LONG. (THE DAMAGE WAS REJul 28, 2011 · N524MC · Boeing 7472D7B · Engine Mount SectionSDR UIEA2011072700440Frame · crackedFRAME AT BS 760 BETWEEN S-5R AND S-7R FOUND CRACKED AND WAS FOUND DURING THE SECTION 42 UPPER LOBE INSPECTION ACCOMPLISHED IAW EO 4753A165, REV C (SB 747-53-2349 REV 3, AD 2009-18-07). THE CRACK WAS LOCAL ONLY TO THE FRAME PN AND WAS LOCATED AT S-6R. THE CRACKJul 27, 2011 · N524MC · Boeing 7472D7B · Fuselage Main, FrameSDR UIEA2011072700439Frame · crackedDECK FRAME AT BS 760 BETWEEN S-5L AND S-7L FOUND CRACKED AND WAS FOUND DURING THE SECTION 42 UPPER LOBE INSP ACCOMPLISHED IAW EO 4753A165, REV C (SB 747-53-2349 REV 3, AD 2009-18-07). THE CRACK WAS LOCAL ONLY TO THE FRAME AND WAS LOCATED AT S-6L. THE CRACK WASJul 27, 2011 · N524MC · Boeing 7472D7B · Fuselage Main, FrameSDR UIEA2011072700367Frame · damagedCRACK DAMAGE WAS DETECTED IN RADIUS OF BULKHEAD CHORD AT BS 1000 BETWEEN S38L - S39L. THE CRACK DAMAGE WAS THROUGH THE FULL THICKNESS OF THE CHORD AS DOCUMENTED IAW NRC 50190 FOR REPAIR ACTIONS (SEE FIG 1). REPLACED BULKHEAD CHORD AS REQUIRED IAW TLS EO 4753Jul 27, 2011 · N524MC · Boeing 7472D7B · Fuselage Main, FrameSDR UIEA2011072700368Stringer · crackedINSPECTION FOUND VISUALLY, A CRACK AT BS 525 IN STRINGER 27L DURING ROUTINE INSPECTION. THE STRINGER CRACK IS COMMON TO AN EXTERNAL REPAIR DOUBLER BETWEEN STRINGERS 26L AND 28L THAT HAS A REPETITIVE INSPECTION REQUIREMENT ACCOMPLISHED BY EO 4753A832. SEE FIG 1Jul 27, 2011 · N524MC · Boeing 7472D7B · Fuselage Main, Longeron/StringerSDR UIEA2011072600453Frame · crackedRT BS 380, STR 18R FRAME OTBD FLANGE FOUND CRACKED AT RT BS 38 BETWEEN STR 17R AND STR 18R, FRAME REPAIRED IAW 53-23-37165, REV A.Jul 26, 2011 · N524MC · Boeing 7472D7B · Fuselage Structure (General)SDR UIEA2011072600450Frame · crackedM/D LT BS 360 BETWEEN STR 23L AND STR 26L FRAME CRACKED 10 LOCATIONS. FRAME REPAIRED IAW HXRS, NR 53-12-37160, REV B.Jul 26, 2011 · N524MC · Boeing 7472D7B · Fuselage Main, FrameSDR UIEA2011072600420Angle · corrodedDURING THE PRESENT C4/A6 CHECK, INSPECTION ON THE DATUM ACFT REVEALED CORROSION ON THE BS 1241 CANTED PRESSURE WEB ANGLE COMMON TO WING CENTER SECTION. THE CORROSION WAS REPORTED AT APPROX RBL 80 AND PENETRATED THE A SECTION OF THE ANGLE WHICH WAS TRIMMED IAWJul 26, 2011 · N524MC · Boeing 7472D7B · Fuselage Miscellaneous StructureSDR UIEA2011072500449Frame · crackedM/D LEFT BS 320 STR 14EL FRAME WEB CRACK AT STRINGER CUT OUT. FRAME WEB REPAIRED IAW HXRS NR 53-12-37169, REV A.Jul 25, 2011 · N524MC · Boeing 7472D7B · Fuselage Main, FrameSDR UIEA2011072500448Fuse Pin · crackedNR 4 PYLON UPPER LINK FWD MOUNT BOLT THREAD SEIZED AND NDT FOUND CRACKED AT THREAD ROOT AREA. FUSE PIN REPLACED IAW AMM 54-10-03.Jul 25, 2011 · N524MC · Boeing 7472D7B · Nacelle/Pylon Miscellaneous StructureSDR UIEA2011072200442Stringer · corrodedSTRINGER 42L WAS FOUND WITH A CORROSION LOCATED AT BS 890 TO BS 910. THE CORROSION WAS FOUND DURING NORMAL CHECK INSPECTIONS OF THE FWD CARGO COMPARTMENT BILGE AREA. THE CORROSION WAS APPROX 1INCH WIDE BY 3 INCH LONG AND APPROX 0.034 INCH DEEP. THE CORRODED SJul 22, 2011 · N524MC · Boeing 7472D7B · Fuselage Main, Longeron/StringerSDR UIEA2011072200419Fitting · damagedDURING ACCOMPLISHMENT OF EO 4753B354 (SB 747-53A2562, AD 2006-22-15) REPLACEMENT FITTING WAS FOUND TO HAVE (2) ATTACH PILOT HOLES WITH THE CENTER SHIFTED APPROX. 0.080 INCH COMPARED TO THE EXISTING STRUCTURE. (THE MISALIGNED HOLES WERE REPAIRED BY INSTALLATIONJul 22, 2011 · N524MC · Boeing 7472D7B · Fuselage Main, Attach FittingsSDR UIEA2011072200376Frame · crackedDURING THE PRESENT C4-CHECK, CRACKS WERE FOUND AT BS 480 SIDE BETWEEN S-27L AND S-28L. BOTH CRACKS WERE REPORTED AT 2 FASTENER HOLES RUNNING FWD WITH LENGTHS 0.25" AND 0.125" RESPECTIVELY. (CARRIED OUT A CATEGORY B REPAIR BASED ON SRM 53-30-03, FIG 1 (WITH SUJul 22, 2011 · N524MC · Boeing 7472D7B · Fuselage Main, FrameSDR UIEA2011072000377Shear Web · crackedTHE PURPOSE OF THIS EO, IS TO DOCUMENT A CATEGORY B REPAIR ACCOMPLISHED DURING C4 / A6 CHECK, DURING JULY 2011. INSP VISUALLY FOUND A CRACK IN THE SHEAR WEB AT S-14R BETWEEN BS 380 AND 400 DURING ROUTINE INSPECTION. THE CRACK WAS 4 IN LONG WHEN FOUND AND DOCJul 20, 2011 · N524MC · Boeing 7472D7B · Fuselage Miscellaneous StructureSDR UIEA2011071900428Frame · crackedDURING C4/A6 CHECK, INSP DETECTED 2 EACH CRACKS ON THE RT SIDE , BS 320 FRAME AT S-15R CUTOUT. THE FIRST CRACK IS FOUND ON THE WEB LAYER ONLY AND IS APPROX 2 IN LONG RUNNING INBD AND DOWNWARD. THE SECOND CRACK IS ALSO ON THE WEB LAYER ONLY AND IS APPROX 0.50 Jul 19, 2011 · N524MC · Boeing 7472D7B · Fuselage Main, FrameSDR UIEA2011071900418Frame · crackedDURING INSPECTION, DETECTED 2 EACH CRACK ON THE RT SIDE , BS 380 FRAME AS SHOWN IN FIG 1. THE FIRST CRACK IS FOUND ON THE WEB LAYER ONLY AND IS APPROX 0.5 INCH LONG RUNNING INBD AND UPDWARD. THE SECOND CRACK IS ALSO ON THE WEB LAYER ONLY AND IS APPROX 0.125 IJul 19, 2011 · N524MC · Boeing 7472D7B · Fuselage Main, FrameSDR UIEA2011071800443Frame · crackedDURING THE ACCOMPLISHMENT OF EO 4753B324, REV B (SB 747-53A2450, REV 6, AD 2010-20-08). ONE FASTENER HOLE ON THE FRAME STRAP (PN 65B01849-26) WAS FOUND WITH A 0.0625 INCH CRACK EXTENDING IN THE AFT DIRECTION AS SEEN IN THE REF /2/ RS R53-62-37168 REV A. IN AJul 18, 2011 · N524MC · Boeing 7472D7B · Fuselage Main, FrameSDR UIEA2011071500430Tension Tie · crackedDURING INSPECTION OF DATUM ACFT IAW EO 4753B328, A CRACK WAS FOUND ON AT BS 880, LT SIDE TENSION TIE STR 9L, AFT CHANNEL AT HOLE NR 16 FIG 1 CRACK LENGTH WAS 0.040" AND RUNNING INBD AT 9 O'CLOCK. THE DAMAGED TENSION TIE WAS REPAIRED IAW WORK STEP 23D OF PART Jul 15, 2011 · N524MC · Boeing 7472D7B · Fuselage Main, StructureSDR UIEA2011071500426Tension Tie · crackedTHE PURPOSE OF THIS EO IS TO DOCUMENT A MAJOR REPAIR THAT WAS ACCOMPLISHED DURING C4/A6 CHECK. DURING INSPECTION OF DATUM ACFT IAW EO 4753B328, CRACK WAS FOUND ON AT BS 940 LT SIDE TENSION TIE STR - 8L AFT CHANNEL AT HOLE NR 20 (FIGURE 1) (CRACK LENGHT WAS 0.0Jul 15, 2011 · N524MC · Boeing 7472D7B · Fuselage Main, StructureSDR UIEA2011071500425Tension Tie · damagedDURING INSPECTION OF DATUM ACFT IAW EO 4753B328, ELONGATION FASTENER HOLE WAS FOUND ON AT BS 920 RT SIDE TENSION TIE AFT CHANNEL (FIG 1). THE DAMAGED TENSION TIE WAS REPAIRED IAW WORK STEP 29D OF PART 2 OF EO 4753B328. IAW WORK STEP 29D OF PART 2 OF THE EO, Jul 15, 2011 · N524MC · Boeing 7472D7B · Fuselage Main, StructureSDR UIEA2011071300436Frame · crackedDURING ACCOMPLISHMENT OF SB 747- 53A2414 (AD 99-07-03) IAW CEO 72530A, A CRACK WAS FOUND IN THE WEB OF THE LT 488 FRAME. THE CRACK WAS FOUND BELOW THE NR1 STOP FITTING. REPAIRED BY ACCOMPLISHING A DOUBLER REPAIR IAW SRM 53-10-04, FIG 92 AS INSTRUCTED BY SB 74Jul 13, 2011 · N524MC · Boeing 7472D7B · Fuselage Main, FrameSDR UIEA2011071300424Tension Tie · crackedDURING INSPECTION OF DATUM ACFT IAW EO 4753B328, A CRACK WAS FOUND ON AT BS 920, RT SIDE TENSION TIE FWD CHANNEL AT HOLE NR 5 (FIGURE 1) CRACK LENGTH WAS 0.060" AND RUNNING INBD AT 3 O'CLOCK. THE DAMAGED TENSION TIE WAS REPAIRED IAW WORK STEP 29D OF PART 2 OF Jul 13, 2011 · N524MC · Boeing 7472D7B · Fuselage Miscellaneous StructureSDR UIEA2011071300359Nozzle · crackedDURING A 'C4/A4' CHECK OF ACFT, MX FOUND 2 CRACKS ON THE NR 1 ENGINE EXHAUST NOZZLE OUTER SKIN AT 12 O'CLOCK POSITION (REFER TO FIG 1 AND 2 ). (THE CRACKS CAN BE REPAIRED IAW THE ENGINE MANUAL (ESM) TASK 78-11-01-300-011. REPAIR 78-11-01 REPAIR 011. THIS REJul 13, 2011 · N524MC · Boeing 7472D7B · Engine Collector/Tailpipe/NozzleSDR UIEA2011061900322Inu · failedAFTER TAKEOFF, CAPTAINS FLIGHT INSTRUMENTS HAD ATT FLAG IN ADI, HSI. FLAG IN HSI FOLLOWING RED WARNING LIGHT ON INU NR1, CODE 591 IN INS, PLATFORM FAILURE. INS WAS SHUTDOWN, UNABLE TO RESTORE CAPTAINS HSI AND ADI. USING FHB PROCEDURE CIWS LIGHTS ON CAPTAINS SJun 19, 2011 · N524MC · Boeing 7472D7B · Navigation SystemSDR UIEA2011061400320Power Supply · inoperativeRIGHT SIDE U/D DR SLIDE EMERGENCY LIGHT INOP. EMERGENCY LT POWER PACK REPLACED.Jun 14, 2011 · N522MC · Boeing 7472D7B · Emergency LightingSDR UIEA2011061100296Intercostal · crackedFOUND A CRACK DURING A C4/A12-CHECK. (PART 1, TIME-LIMITED REPAIR WAS ACCOMPLISHED AT BY TRIMMING THE FRAME WEB, REPLACING THE INTERCOSTAL WEB AND SPLICING IN NEW SEGMENTS OF FRAME INNER CHORDS. THE PART 2 PERMANENT OR INTERIM REPAIR IS REQUIRED W/N 1,000FC ORJun 11, 2011 · N522MC · Boeing 7472D7B · Fuselage Miscellaneous StructureSDR UIEA2011061000312Skin · crackedCRACK DAMAGE IN SKIN ASSY 65B04116-2 AT BS 955 - 987, S37R - 39R IN THE DRAG SPLICE FITTING AREA. THE CRACK DAMAGE WAS DETECTED DURING C04 PLUS A12 CHECK AND WHILE COMPLYING WITH SB 747-53A2444 REV 2. (NRC 501750 WAS USED TO DOCUMENT THE FINDING OF THE CRACKJun 10, 2011 · N522MC · Boeing 7472D7B · Fuselage Main, Plate/SkinSDR UIEA2011061000299Structure · crackedL3 PASSENGER DOOR (ASSY PN 65B01842-287, SN TLS 13762) AFT UPPER CORNER WITH CRACK REPAIR AT INTERNAL SURFACE. THE CRACK WHICH MEASURES APPROX 1.5 INCHES LONG (REPAIRED WITH STOP DRILL AT BOTH ENDS. IN ADDITION, A REPAIR ANGLE WAS FOUND AT THE AFT EDGE AS SHJun 10, 2011 · N522MC · Boeing 7472D7B · Passenger/Crew DoorsSDR UIEA2011060800288Light · unknown1ST OBSERVER'S SEAT MAP LIGHT. TRANSFERRED & NBSP; TO MDDR 24530. CAT C MEL NR 33-1.Jun 8, 2011 · N523MC · Boeing 7472D7B · Flight Compartment LightingSDR UIEA2011060700310Skin · crackedCRACKS WERE FOUND AT MAIN ENTRY DOOR 1R LOWER FWD CORNER OF DOOR CUTOUT IN OUTER SKIN, DOUBLER, CHORD AND STRAPS.( DOCUMENTATION OF REPAIR AT MAIN ENTRY DOOR 1R AT LOWER FWD CORNER OF DOOR CUTOUT. DAMAGE WAS CRACKS IN OUTER SKIN, DOUBLER, STRAPS AND CHORD. DAJun 7, 2011 · N522MC · Boeing 7472D7B · Passenger/Crew DoorsSDR UIEA2011060700300Bulkhead Web · crackedDURING C-CHECK, A CRACK WAS FOUND IN THE PRESSURE WEB. THE CRACK WAS LOCATED AT THE 11 O'CLOCK POSITION, EXTENDING THROUGH TWO (2) FASTENER HOLES OTBD OF THE RT 2ND INTERMEDIATE STIFFENER FROM THE TOP. THE CRACK EXTENDED 0.1875 IN INBD AND 0.125 IN OTBD AS SJun 7, 2011 · N522MC · Boeing 7472D7B · Fuselage Main, BulkheadSDR UIEA2011060300315Tension Tie · damagedDAMAGE WAS DISCOVERED DURING INSPECTION IAW EO 4753B328 - SB 747-53A2502 (ASSOCIATED WITH AD 2006-01-07) AT THE C4 CHECK. IN ADDITION TO THE SHORT EDGE MARGIN ON THE TENSION TIE, THE FRAME AND FRAME DOUBLER FASTENER HOLES HAVE BEEN PREVIOUSLY OVERSIZED IAW SB Jun 3, 2011 · N522MC · Boeing 7472D7B · Fuselage Main, StructureSDR UIEA2011060200298Stiffener · damagedNOSE WHEEL WELL - STIFFENER, BS 280/LBL 10 - FILLER REPAIR. EO 4753B355. (EO RS NR:R-53-00-37098, REV A, FABRICATION AND INSTALLATION OF THE TWO (2) STRUCTURAL FILLERS TO ELIMINATE INTERFERENCE DURING THE INSTALLATION OF REPLACEMENT STIFFENER 141U5190-219, WAJun 2, 2011 · N522MC · Boeing 7472D7B · Fuselage Miscellaneous StructureSDR UIEA2011060200286Fairing · crackedDURING INSPECTION THE NR1 ENGINE RT THRUST REVERSER LOWER AFT FAIRING WAS FOUND WITH A CRACK AND MISSING MATERIAL AS SHOWN IN FIGURES 2 AND 3. TRIMMED OUT THE DAMAGED FAIRING SKIN. HFEC INSPECTED THE REWORKED AREA TO ENSURE NO CRACKS OR OTHER DEFECTS. INSTAJun 2, 2011 · N522MC · Boeing 7472D7B · Engine Thrust ReverserSDR UIEA2011060100290Structure · corrodedEO 4753B352: DURING ACCOMPLISHMENT OF SB 747-53A2562, FOUND HEAVY CORROSION AT BS 340, RBL 37, WL 120, PN 65B07935-544 TEE THROUGH VERTICAL FLANGE AS SHOWN IN FIG 1. (PROPOSED THE REPAIR SHOWN IN FIG 1 WHICH DEEMED ACCEPTABLE WITH THE FOLLOWING PROVISIONS: MACJun 1, 2011 · N522MC · Boeing 7472D7B · Fuselage Miscellaneous StructureSDR UIEA2011053000268Sleeve · damagedDURING WALK AROUND CHECK, MX FOUND A HOLE 0.5" WIDE ON THE OUTER SLEEVE OF THE LONG FIXED CORE EXHAUST NOZZLE (LFCEN) ON THE NR 2 ENGINE. THE HOLE IS 6.0" FROM THE EXHAUST SLEEVE T/E AT THE 11:00 O' CLOCK POSITION. (DISPOSITION WAS MADE TO REMOVE ANY BURRS UMay 30, 2011 · N523MC · Boeing 7472D7B · Engine Collector/Tailpipe/NozzleSDR UIEA2011052300265Access Door · crackedDURING MX WALKAROUND, MX FOUND 1 EA CRACK ON THE NR 1 ENGINE THRUST REVERSER LWR ACCESS DOOR (PN: 9071M77G12). DAMAGE LOCATED AT 6 O'CLOCK POSITION. THE CRACK IS APPROX 2.0625 IN LONG. (IAW AMM 78-11-01 THE LENGTH OF THE CRACK IS OUT OF LIMITS. DISPOSITION ISMay 23, 2011 · N524MC · Boeing 7472D7B · Engine Thrust ReverserSDR UIEA2011051900262Skin · dentedMX FOUND THE NR1 ENGINE INLET NOSE COWL - OUTER BARREL SKIN DENT, MEASURING: 12.0" X 9.0" AND THE DEPTH 0.250 (REF FIG 1), LOCATED APPROX AT 3 O'CLOCK POSITION. THE DAMAGE IS BEYOND THE ALLOWABLE DAMAGE LIMITS IAW SRM 54-31-01, FIG 1, IAW SRM 51-40-06, FIG 2. May 19, 2011 · N524MC · Boeing 7472D7B · Nacelle/Pylon, Plate/SkinSDR UIEA2011051700289Spar · damagedREPORTED DAMAGE TO RT HORIZ STABILIZER REAR SPAR HINGE FITTING HOLE NR28, MFG PROPOSED THE REPAIR SHOWN IN FIG 1 (FABRICATE AND INSTALL FREEZE PLUG AT SUBJECT HOLE LOCATION IAW SRM 51-10-08). DEEMED THE REPAIR ACCEPTABLE WITH THE FOLLOWING PROVISIONS: PERFORM May 17, 2011 · N522MC · Boeing 7472D7B · Horizontal Stabilizer, Spar/Rib
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