Boeing 747-243B

Service difficulty reports · 506

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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 = '747243B'
  ORDER BY difficulty_date DESC"

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SDR UIEA2011112300694Cargo Track · crackedDURING LOADING, THE SEAT TRACK AT BS 1620 - 1630, LBL 11.33 MAIN DECK CARGO COMPARTMENT WAS FOUND CRACKED. THE DAMAGE MEASURES 9 " IN LENGTH; THE DAMAGE EXCEEDS THE SRM 53-00-52 FIG 101, ALLOWABLE DAMAGE 1 LIMITS.Nov 21, 2011 · N517MC · Boeing 747243B · Fuselage, Seat/Cargo Attach FittingsSDR UIEA2011111800664Thrust Reverser · damagedDURING WALKAROUND, MX FOUND NR 4 LT THRUST REVERSER HALF NOT STOWED. UPON FURTHER INSPECTION , FOUND THRUST REVERSER HALF FULLY DEPLOYED AND NOTICED DAMAGE TO THRUST REVERSER RODS AND BRACKETS. (REF FIG 1). MADE TO PERFORM A TIME LIMITED REPAIR IAW PART 1 WORNov 17, 2011 · N517MC · Boeing 747243B · Engine Thrust ReverserSDR UIEA2011081800456Sleeve · crackedDURING WALK AROUND CHECK, FOUND SEVERAL CRACKS COMING FROM THE SKIN, ON THE OUTER SLEEVE OF THE LONG FIXED CORE EXHAUST NOZZLE (LFCEN) ON THE NR 4 ENGINE. THE CRACKS ARE APPROX AT THE 7 O'CLOCK POSITION. REF FIG 1. REMOVED ANY BURRS AND STOP DRILLED CRACK ENAug 18, 2011 · N517MC · Boeing 747243B · Engine Collector/Tailpipe/NozzleSDR UIEA2011073100396Engine · flamed outON TAXI-OUT ENG POSITION 4 FLAMED OUT. ACFT RETURNED TO BLOCKS. FLAMEOUT INSPECTION PERFORMED IAW 71-00-47. REQUIRED ENGINE RUN TO 81.9 WITH ELECTRICAL AND HYD SYS TO MAX. NO DISCREPANCIES NOTED ON RUN-UP IAW AMM 71-00-00.Jul 31, 2011 · N517MC · Boeing 747243B · Engine (Turbine/Turboprop)SDR Q2SA820002Fan · faultyNOTICED BURNING SMELL WITH FLIGHT DECK FAN ON, WITH THE FAN OFF, THE SMELL STOPPED. FOUND RECIRCULATING FAN TO BE THE CAUSE OF SMOKE/FUMES IN THE COCKPIT. THE ITEM WAS TRANSFERRED TO DI 25211 AS PER MEL 21-20, CAT C. ADDITIONALLY, PERFORMED SMOKE IN THE CABJul 8, 2011 · N820SA · Boeing 747243B · Air Distribution FanSDR UIEA2011070200358Web · crackedRT WING NR 15 K/FLAP FOLDING FAIRING MID FTG LWR WEB FOUND CRACK. (LWR WEB REPAIR ACCOMPLISHED IAW RS 57-50-37143, REV A.)Jul 2, 2011 · N517MC · Boeing 747243B · Leading Edge DevicesSDR UIEA2011070100344Frame · crackedDURING THE "C4/A4 CHECK" WHILE COMPLYING WITH SB 747 -53A2265 REV 9, CRACK DAMAGE TO WEB OF BODY STATION FRAME 65B01711-133. REPAIRED THE CRACK DAMAGE IAW SRM 53-10-04 (FIG 18).Jul 1, 2011 · N517MC · Boeing 747243B · Fuselage Main, FrameSDR UIEA2011063000357Bulkhead · crackedNR 4 PYLON AFT SIDE OF REAR ENG MOUNT BULKHEAD WAS FOUND 1 EA SCREW HOLE CRACKED ON 1 O/C AND 2 O/C POS APPROX .1250" AND .2500" LENGTH. (NR4 PYLON AFT SIDE OF REAR ENG MOUNT BULKHEAD LT FRAME WEB REPLACE ACCOMPLISHED AS EPR RS 54-53-37139, REV A.)Jun 30, 2011 · N517MC · Boeing 747243B · Nacelle/Pylon, Bulkhead/FirewallSDR UIEA2011063000356Bulkhead · crackedNR1 PYLON AFT SIDE OF REAR ENG MOUNT BULKHEAD WAS FOUND 1 EA SCREW HOLE CRACKED ON 1 O/C AND 2 O/C POSITION APPROX .1250" AND .2500 " LENGTH (NR 1 PYLON AFT SIDE OF REAR ENG MOUNT BULKHEAD LT FRAME WEB REPLACE ACCOMPLISHED IAW RS54-53-37139, REV A).Jun 30, 2011 · N517MC · Boeing 747243B · Nacelle/Pylon, Bulkhead/FirewallSDR UIEA2011063000349Frame · crackedFRAME WEB FASTENER HOLE CRACK AT U/D BS 360 STR 12R (FRAME WEB REPAIRED IAW RS R53-25-37122, REV A.)Jun 30, 2011 · N517MC · Boeing 747243B · Fuselage Main, FrameSDR UIEA2011063000348Failsafe · damagedDAMAGE AT FUSELAGE, BS2200, S38L TO 40L FRAME FAIL SAFE (BS2200, S38L TO S40L FRAME FAIL SAFE CHORD REPAIR ACCOMPLISHED IAW RS 53-60-37121, REV A)Jun 30, 2011 · N517MC · Boeing 747243B · Fuselage Main, StructureSDR UIEA2011063000352Frame · crackedRT BS 800, STR 17 (1) EA HOLE FOUND CRACK AT AFT LOWER CHORD. (RT BS 800 FRAME AT LOWER CHORD REPAIRED BETWEEN S16 TO S17. ACCOMPLISHED IAW HX RS R53-20-37128, REV A.)Jun 30, 2011 · N517MC · Boeing 747243B · Fuselage Main, FrameSDR UIEA2011062900350Skin · crackedBS 344 STR 5L SKIN CRACKED. (SKIN REPAIR ACCOMPLISHED IAW RS-R53-11-37129, REV A)Jun 29, 2011 · N517MC · Boeing 747243B · Fuselage Main, Plate/SkinSDR UIEA2011062800334Skin · crackedDURING INSP IAW SB 747-53A2542, FOUND A CRACK TO BE .1250 INCHES LONG ON PN 65B07652-569 OUTER SKIN AS SHOWN IN FIG 1.Jun 28, 2011 · N517MC · Boeing 747243B · Fuselage Main, Plate/SkinSDR UIEA2011062700333Frame · crackedDURING THE ACCOMPLISHMENT OF SB 747-53A2414 IAW CEO 72530A, A CRACK WAS FOUND IN THE WEB OF THE RT AND LT SIDE BS 488 FRAMES. REPAIRED BY ACCOMPLISHING SRM 53-10-04, FIGURE 92 AS INSTRUCTED, SB 747-53A2414.Jun 27, 2011 · N517MC · Boeing 747243B · Fuselage Main, FrameSDR UIEA2011062700328Frame · crackedDURING C4/A4 CHECK OF SUBJECT ACFT AT BASE, FOUND CRACK DAMAGE ON FUSELAGE FRAME AT BS 820, S-8L. THE DAMAGED FRAME'S PN 65B01734-25. AN INTERIM REPAIR WAS ACCOMPLISHED ON FRAME AT BS820, S-8L IAW-CLASSIC SRM 53-10-04, FIG 54 AND NRC 506172.Jun 27, 2011 · N517MC · Boeing 747243B · Fuselage Main, FrameSDR UIEA2011062700327Frame · crackedDURING C4/A4 CHECK OF SUBJECT ACFT, FOUND CRACK DAMAGE ON FUSELAGE FRAME AT BS 800, S-7R TO S-8R AND AT BS 820, S-8L. AN INTERIM REPAIR WAS ACCOMPLISHED ON FRAME IAW SRM 53-10-04, FIGURE 54 AND NRC 506164..Jun 27, 2011 · N517MC · Boeing 747243B · Fuselage Main, FrameSDR UIEA2011062400338Fitting · crackedCRACKS WERE FOUND ON THE EXTENSION FITTING, SKIN, BULKHEAD CHORD, OUTER CHORD SPLICE FITTING, BULKHEAD WEB AND WEB SPLICE PLATE. CORROSION WAS ALSO FOUND ON THE INBD SIDE OF THE LOWER BULKHEAD CAP FITTING.Jun 24, 2011 · N517MC · Boeing 747243B · Fuselage Main, BulkheadSDR UIEA2011062400326Frame · crackedDURING C4/A4 CHECK, CRACK WAS FOUND ON FRAME AT BS 2220 BETWEEN S-25R AND S-26R. THE DAMAGED PART OF THE FRAME WAS REMOVED BY TRIMMING THE FRAME JUST BELOW S-24R AND REMOVING THE FACTORY SPLICE AT S-34R. HFEC INSPECTION ACCOMPLISHED IAW NDT MANUAL, PART 6, 5Jun 24, 2011 · N517MC · Boeing 747243B · Fuselage Main, FrameSDR UIEA2011062300336Frame · crackedDURING THE ACCOMPLISHMENT OF SB 747-53A2414 IAW CEO 72530A A CRACK WAS FOUND IN THE WEB OF THE RT BS 488 FRAME. REPAIRED BY ACCOMPLISHING SRM 53-10-04, FIG 92 AS INSTRUCTED BY THE CEO AND SB 747-53A2414.Jun 23, 2011 · N517MC · Boeing 747243B · Fuselage Main, FrameSDR UIEA2011062200343Floorbeam · crackedDURING THE "C4/A4 CHECK" WHILE COMPLYING WITH SB 747-53A2459 REV 1, CRACK DAMAGE WAS DETECTED AT LBL 68 IN 65B10927-45 FLOORBEAM WEB. REPAIRED CRACK DAMAGED FLOORBEAM WEB IAW SB 747-53A2459 REV 1, DWG 141U0044 SHEET 2 VIEW 1C11 AND EO RS R-53-25-37120 REV A.Jun 22, 2011 · N517MC · Boeing 747243B · Fuselage Main, Floor BeamSDR UIEA2011062200342Floorbeam · damagedDURING THE "C4/A4 CHECK" WHILE COMPLYING WITH SB 747 -53A2459, REV. 1, CRACK DAMAGE WAS DETECTED AT AT LBL 68 IN 65B10927-16 FLOORBEAM CHORD AND DOCUMENTED IAW NRC 50199 (SEE FIGURE 1). COMPLETED THE FLOORBEAM UPPER CHORD SPLICE REPAIR AT BS 340 IAW SRM 53-Jun 22, 2011 · N517MC · Boeing 747243B · Fuselage Main, Floor BeamSDR UIEA2011062200340Frame · damagedDURING THE "C4/A4 CHECK" WHILE COMPLYING WITH SB747 -53A2459, REV 1, CRACK DAMAGE TO WEB OF BODY STATION FRAME 65B10334-69 WAS DOCUMENTED IAW NRC 50198. REPAIRED DAMAGE IAW SRM 53-10-04, FIG 102 AND EO RS NR: R-53-25-37120 REV A.Jun 22, 2011 · N517MC · Boeing 747243B · Fuselage Main, FrameSDR UIEA2011062100332Frame · crackedDISCOVERED 2 CRACKS AT THE STRINGER CUT OUT OF THE FRAME AT BS 500, S-10AR, REF FIG 1, SHEET 1. THE DAMAGE WAS REPORTED WITH A PROPOSED REPAIR, REF FIG 1, SHEET 2.Jun 21, 2011 · N517MC · Boeing 747243B · Fuselage Main, FrameSDR UIEA2011062100330Frame · crackedDISCOVERED 2 EA, 0.5" CRACKS IN THE FRAME DOUBLER AT BS 520, S-10AL & AMP; S-11L, REF SHEET 1 OF FIG 1. THE DAMAGE WAS REPORTED WITH A PROPOSED REPAIR, REF SHEET 2 OF FIG 1.Jun 21, 2011 · N517MC · Boeing 747243B · Fuselage Main, FrameSDR UIEA2011062100329Frame · crackedDISCOVERED 2 EA, 0.5 " CRACKS AT THE STRINGER CUTOUT OF THE FRAME AT BS 500, S-10AL & AMP; S-11L, REF FIG 1. THE DAMAGE WAS REPORTED WITH A PROPOSED REPAIR, REF FIG 2.Jun 21, 2011 · N517MC · Boeing 747243B · Fuselage Main, FrameSDR UIEA2011062000346Floorbeam · crackedDURING THE "C4/A4 CHECK" WHILE COMPLYING WITH SB-53A2459 REV. 1, CRACK DAMAGE WAS DETECTED AT AT RBL 72 IN 65B10928-58 FLOORBEAM WEB. REPAIRED DAMAGED IAW REPAIR SRM 53-10-07, FIG 11.Jun 20, 2011 · N517MC · Boeing 747243B · Fuselage Main, Floor BeamSDR UIEA2011061800345Frame · crackedDURING THE "C4/A4 CHECK" WHILE COMPLYING WITH SB 747 -53A2459, REV 1, CRACK DAMAGE TO WEB OF BODY STATION FRAME 65B01711-158 WAS DETECTED. REPAIRED DAMAGE IAW SRM 53-10-04, FIG 103.Jun 18, 2011 · N517MC · Boeing 747243B · Fuselage Main, FrameSDR UIEA2011061700339Frame · crackedCRACKED CHORD WAS DISCOVERED DURING THE ACCOMPLISHMENT OF EO 4753A883 (SB 747-53A2451; AD 2007-16-08). REPAIRED BY TRIMMING THE DAMAGE AND INSTALLING FILLERS, DOUBLERS AND TRIPLERS IAW MFG INSTRUCTIONS.Jun 17, 2011 · N517MC · Boeing 747243B · Fuselage Main, FrameSDR UIEA2011061700337Frame · crackedDURING THE ACCOMPLISHMENT OF EO 4753A883, SB 747-53A2451, AD 2007-16-08. THE FWD FRAME FWD INNER CHORD AND FWD FRAME AFT INNER CHORD WAS FOUND CRACKED AT FOUR FASTENER HOLES. STRAP AND FILLERS WERE FOUND INSTALLED BETWEEN S-16L AND S-20L AND AN EXISTING SPLICEJun 17, 2011 · N517MC · Boeing 747243B · Fuselage Main, FrameSDR UIEA2011061600353Frame · crackedU/D LT BS 500 SILL FRAME ATTACH DOUBLER CRACKED (BS 500, S10L TO S12L FRAME ATT DOUBLER REPAIR ACCOMPLISHED IAW RS53-22-37133, REV A).Jun 16, 2011 · N517MC · Boeing 747243B · Fuselage Main, FrameSDR UIEA2011052700272Light · inoperativeEMERGENCY LIGHT BS 300 INOP. REPLACED BS 300 EMERGENCY LIGHT ASSY, AMM PACK, OPS CHECKED OK REF 33-51-00.May 27, 2011 · N517MC · Boeing 747243B · Emergency LightingSDR UIEA2011050500255Skin · damagedDURING WALK AROUND INSP BEING PERFORMED, MX FOUND THE LT WS 594.0, 16" AFT OF L/E - L/E KRUEGER FLAP - LOWER SURFACE EXTERNAL SKIN WITH DELAMINATION DAMAGE (AREA:MEASURES APPROX 12 IN DIA) (REF FIGURE 1). (DISPOSITION WAS MADE TO PERFORM A TIME LIMITED REPAIR May 5, 2011 · N540MC · Boeing 747243B · Leading Edge DevicesSDR UIEA2011041600247Power Unit · shortedAIR TURN BACK. NO FUEL DUMPED. DURING CLIMBOUT WHEN EITHER "A" OR "B" AUTOPILOT SELECTED , ACFT MODERATE TO SEVERE ROLL LT AND RT. FOUND ROLLOUT CONTROL POWER PACKAGE B, A/P LVDT HAD SHORT TO GROUND, REPLACED ROLLOUT CONTROL POWER PACKAGE, OPS CKS IAW MM SATIApr 16, 2011 · N517MC · Boeing 747243B · Autopilot SystemSDR UIEA2011041500248Blowout Panel · openAIR TURN BACK- CLIMBING THROUGH 4000 FT, NR 4 ENGINE FIRE INDICATION WITH BELL AND MASTER FIRE WARNING; LIGHT ON. NR 4 ENGINE NACELLE TEMP A AND B AT 9.5. ENGINE FIRE CHECKLIST PERFORMED. NR 4 ENGINE SHUTDOWN. ON ARRIVAL, FOUND NR 4 ENGINE NR 4 "C" DUCT BLOWApr 15, 2011 · N540MC · Boeing 747243B · Pneumatic Distribution SystemSDR UIEA2011040100170Pdu · faultedFLIGHT CREW REPORTED SMOKE ON MAIN DECK. TROUBLESHOT TO FAULTY MAIN DECK PDU 9-R & REPLACED.Apr 1, 2011 · N517MC · Boeing 747243B · Smoke DetectionSDR UIEA2011021300065Connector · shortedHYDRAULIC SYS NR 4 INTERMITTENT FLICKER OF PUMP PRESS AND BRAKE LOW PRESS AT FE PANEL AND FWD ANNUNCIATOR. HYD QTY AND PRESS INDICATION NORMAL. WIRING CHECK IAW 29-34-12 FOUND WIRES SHORTED TO GROUND AND BOTH EDP/ADP PRESS SW AND CONNECTORS CONTAMINATED. CONFeb 13, 2011 · N517MC · Boeing 747243B · Hydraulic Power System WiringSDR UIEA2011021300064Wire · shortedHYDRAULIC SYS NR 4 ADP CONT CIRCUIT BREAKER OPENS WHEN CONTINUOUS SELECTED. RUN LT ILLUMINATES MOMENTARILY. WIRING CHECKED IAW 29-34-12 FOUND WIRES SHORTED TO GROUND. WIRING REPAIRED IAW SWPM 20-10-13.Feb 13, 2011 · N517MC · Boeing 747243B · Hydraulic Power System WiringSDR UIEA2011021200059Sense Line · leakingAPPROX 10,000 FT NR3 ENGINE "B" LOOP INDICATED 7.5 AND RISING. "A" LOOK 3.6 AND STEADY. WITHIN SECONDS OF NOTICING TEMP, NR 3 FIRE WARNING ILLUMINATED. ACCOMPLISHED FHB PROCEDURES, FIRE HANDLE WAS PULLED, ENGINE SHUTDOWN. INSPECTED NR 3 ENGINE, AND FOUND HIGHFeb 12, 2011 · N517MC · Boeing 747243B · Pneumatic Distribution SystemSDR UIEA2011020500044Relief Valve · failedCLIMBING THROUGH FL 19.0, RECEIVED A NR 3 ENQINE FIRE INDICATION. BOTH A & B LOOP NACELLE TEMPS READ 8.5. STARTED ENGINE FIRE CHECKLIST, BROUGHT NR 3 THRUST LEVER CLOSE. FIRE SWITCH LIGHT EXTINGUISHED. COMPLETED CHECKLIST. DID NOT DISCHARGE FIRE BOTTLE, FOFeb 5, 2011 · N517MC · Boeing 747243B · Pneumatic Distribution SystemSDR UIEA2011011400004Skin · damagedDURING A-CHECK BEING PERFORMED-UPPER L/E PANEL - EXTERNAL SKIN WITH DELAMINATION/DAMAGE (REF FIG 1). (PERMANENT REPAIR PERFORMED IAW THE SRM 51-40-09, FIG 18 (SHEETS 1-5) AND PREPREG 250A F CURE IAW SRM 51-40-12. THE REPAIR ACCOMPLISHED IN PART 1 OF THIS EO Jan 14, 2011 · N517MC · Boeing 747243B · Leading Edge DevicesSDR UIEA2011011400003Skin · damagedDURING A-CHECK BEING PERFORMED, MX FOUND THE LT INBD FORE FLAP T/E DAMAGE (REF FIG 1). PERMANENT REPAIR PERFORMED IAW THE SRM 51-40-09, FIG 5, (SHEETS 2 & 8) AND PREPREG 250A F CURE IAW SRM 51-40-12. THE REPAIR ACCOMPLISHED IN PART 1 OF THIS EO IS A CATEGORYJan 14, 2011 · N517MC · Boeing 747243B · Trailing Edge FlapsSDR UIEA2010122900248Latch · brokenDURING MX WALKAROUND OF ACFT, REVEALED NR 1 ENGINE THRUST REVERSER LOWER AFT ACCESS DOOR AND BLOWOUT DOOR WERE FOUND OPENED. UPON FURTHER INSP, MX FOUND THE AFT TENSION LATCH BROKEN. (DISPOSITION IS TO ACCOMPLISH A TIME LIMITED REPAIR BY INSPECTING THE 2 OTHDec 29, 2010 · N540MC · Boeing 747243B · Engine Thrust ReverserSDR UIEA2010122500199Unknown · unknownAFTER BRAKE RELEASE FOR TAKEOFF AT ABOUT 20 KNOTS, ACFT TOOK ABRUPT RT TURN. ABORTED TAKEOFF. ACCOMPLISHED VISUAL INSP OF ALL 4 ENGINE INLETS AND EXHAUST. INSPECTED NOSE GEAR STEERING SYS, ALL NORMAL, CHECKED ANTI-SKID SYS AND ALL BRAKES, ALL NORMAL. NO ABNODec 25, 2010 · N517MC · Boeing 747243B · Landing Gear SystemSDR Q2SA820001Acm · inoperativeNR 1 A/C PACK EMITTED BURNING TYPE ODOR ALONG WITH EXCESSIVE NOISE. INSPECTED ACM IAW AMM 21-00-00 AND DETERMINED ACM TO BE AT FAULT. CONDITIONAL (SMOKE) INSPECTION ACCOMPLISHED IAW AMM 05-51-50. NR 1 ACM PACK INOPERATIVE, TRANSFERRED TO DMI NR 23431, PER MNov 5, 2010 · N820SA · Boeing 747243B · Cabin Cooling SystemSDR UIEA201000232Doubler · crackedDURING MX WALKAROUND, MX FOUND THE MAIN DECK - MDSCD AREA - BS1910 ROLL OUT GUIDE - DOUBLER CRACKED (REF FIG 1). THE DAMAGE EXCEEDS THE ALLOWABLE LIMITS IAW AMM 25-58-00. DISPOSITION WAS MADE TO PERFORM A TIME LIMITED REPAIR AS DESCRIBED IN PART 1 WORK INSTRUOct 17, 2010 · N540MC · Boeing 747243B · Fuselage Main, Plate/SkinSDR UIEA2010100100170Cadc · inoperativeAT FL 33.0 CAPT'S ALTIMETER READS 33,020. F/O ALTIMETER 32,520. AT FL 28.0 CAPT'S ALTIMETER READS 28000 F/O 27660. UNABLE TO CONTINUE INTO RVSM AIRSPACE. IAW ATC, CAPT'S & NBSP; ALTIMETER READS CORRECTLY. (FOUND NR 2 CADC AT FAULT. REPLACED NR2 CADC IAW MM 3Oct 1, 2010 · N517MC · Boeing 747243B · Air Data ComputerSDR UIEA2010092700166Sleeve · crackedDURING MX WALK AROUND, MX FOUND 2 EA CRACK ON THE EXHAUST NOZZLE OUTER SLEEVE, NR1 STARTING AT APPROX THE 7 O'CLOCK POSITION. THE CIRCUMFERENTIAL CRACK IS APPROX 3.0 IN LONG, THE NR2 CRACK IS LOCATED AT INBD SIDE AND AFT OF EXHAUST CONE AREA MEASURING 0.750 ISep 27, 2010 · N540MC · Boeing 747243B · Engine Collector/Tailpipe/NozzleSDR UIEA2010091100155Tire · failedMLG WHEELS NR 2, 4, 6, 8 HAD THERMAL DISCHARGE AT GATE. (REPLACED NR 2, 4, 6, 8 WHEELS. SPIN AND LEAK CHECK OK. ANTI SKID TEST AND CHAPTER 5-51-26 INSP ACCOMPLISHED AND ALL NORMAL.)Sep 11, 2010 · N540MC · Boeing 747243B · Tire TubeSDR UIEA2010071700115Metering Valve · inoperativeWITH TAKEOFF POWER SET, ACFT PULLED RT. TAKEOFF ABANDONED AT 40 KNOTS, ENGINE POWER EVEN. (INSPECTED CABLE RUNS AND PULLEYS, CHECKED CABLE TENSIONS, NO DEFECTS NOTED. PERFORMED RIG CHECK, ALL OK. REPLACED METERING VALVE, ALL OPS NORMAL)Jul 17, 2010 · N540MC · Boeing 747243B · Landing Gear Retraction/Extension System
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