# Service difficulty reports: N512MC, cancelled Jun 6, 2011 A list on [N512MC, cancelled Jun 6, 2011](https://openairdocs.org/deregistered/N512MC-2011-06-06.md). Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first. Page 1 of 3 · 118 reports - [SDR UIEA200800345](https://openairdocs.org/sdr/UIEA200800345.md): Skin · delaminated · Dec 4, 2008 · N512MC · Boeing 747230B · Ailerons > LT WING OUTBOARD AILERON UPPER SURFACE HAS 3 AREAS WITH PREVIOUS REPAIRS DELAMINATING. DELAMINATION AT WBL 883.0 AREA IS 3.5 BY 2.0 INCHES, LOCATED 9.5 INCHES FROM T/E, WBL 991.0 AREA IS 4.0 BY 2.0 INCHES, LOCATED 8.5 INCHES FROM T/E AND AT WBL 1033 AREA IS 7 - [SDR UIEA200800339](https://openairdocs.org/sdr/UIEA200800339.md): Outflow Valve · failed · Nov 9, 2008 · N512MC · Boeing 747230B · Pressure Regulator/Outflow Valve > AIR TURN BACK. ACFT WOULD NOT PRESSURIZE AFTER TAKEOFF. NR 1 PACK DEFERRED ALREADY. NR 3 PACK VALVE SWITCH OPEN. CABIN ALTITUDE WARNING HORN SOUNDED CABIN AT 10,000 FT. A/C MODE SELECT SWITCH IN AUTO. BOTH OUTFLOW VALVES CLOSED. DUCT PRESSURE 42 PSI, CABIN C - [SDR UIEA200800331](https://openairdocs.org/sdr/UIEA200800331.md): Tire · blown · Sep 25, 2008 · N512MC · Boeing 747230B · Tire > INTO ANC NR 4 HYD SYSTEM QTY LOSS, COMPLIED WITH FHB, EDP SELECTED OFF AT 1612 HOURS. UPON INSPECTION ON THE GROUND FOUND NR 11 AND 12 TIRES BLOWN, 11 AND 12 BRAKES DAMAGED, NR 9 AND 10 TIRES DAMAGED AS WELL AS NUMEROUS BODY PANELS DAMAGED. ALSO FOUND THE RI - [SDR UIEA200800309](https://openairdocs.org/sdr/UIEA200800309.md): Frame · cracked · Sep 16, 2008 · N512MC · Boeing 747230B · Fuselage Main, Frame > MAIN DECK CARGO COMPARTMENT SIDEWALL FRAME AT BS 1780 AT S12R HAS A 6.0 INCH CRACK, TOTAL WIDTH OF FRAME. INTERIM REPAIR ACCOMPLISHED IAW SRM 51-30-02 EO NR 4753B208 AND FORM 8110-3. REQUIRES INITIAL AND REPEAT INSPECTIONS AT EVERY C-CHECK INTERVALS. (K) - [SDR UIEA200800308](https://openairdocs.org/sdr/UIEA200800308.md): Skin · cracked · Sep 16, 2008 · N512MC · Boeing 747230B · Leading Edge Devices > LT WING LEADING EDGE KRUEGER FLAP LOWER IB SIDE PANEL AT WING STA 323.00 TO 330.00 HAS A 7.0 INCH COMPOSITE CRACK. PERMANENT REPAIR ACCOMPLISHED IAW SRM 51-40-09, FIG 3, SHEETS 1, 4 AND 8, PREPEG 250 DEGREES F CURE IAW SRM 51-40-12. ALSO, REFERENCE EO NR 4757A - [SDR UIE2008F00044](https://openairdocs.org/sdr/UIE2008F00044.md): Isolation Valve · failed · Sep 8, 2008 · N512MC · Boeing 747230B · Engine (Turbine/Turboprop) > AIR TURN BACK. DURING CLIMB BOTH LT AND RT MANIFOLD PRESSURE WAS FLUCTUATING. DURING TROUBLESHOOTING AFTER CRUISE POWER SET 103.4, THE NR 1,3, AND 4 PYLONS VALVES WOULD NOT CLOSE. WITH LT AND RT ISOLATION VALVES CLOSED, IT WAS DETERMINED THAT THE NR 1 PYLON VA - [SDR WRNA20080015](https://openairdocs.org/sdr/WRNA20080015.md): Engine · malfunctioned · Mar 23, 2008 · N512MC · Boeing 747230B · Engine (Turbine/Turboprop) > BECAUSE OF HIGH HEAT AND HUMIDITY AT DUBAI, ENGINES WERE UNABLE TO MAKE TAKEOFF POWER, ABORTED TAKEOFF BEFORE 80 KNOTS AND RETURNED TO RAMP. PERFORMED MAIN ENGINE CONTROL TRIM ON NR 2 ENGINE IAW 71-00-00 PAGE 563 TEST 5. PERFORMED ENGINE PERFORMANCE RUN, OPS - [SDR WRNA20080008](https://openairdocs.org/sdr/WRNA20080008.md): Engine · malfunctioned · Mar 23, 2008 · N512MC · Boeing 747230B · Engine (Turbine/Turboprop) > BECAUSE OF HIGH HEAT AND HUMIDITY AT DUBAI, ENGINES WERE UNABLE TO MAKE TAKEOFF POWER, ABORTED TAKE-OFF BEFORE 80 KNOTS AND RETURNED TO RAMP. PERFORMED MAIN ENGINE CONTROL TRIM ON NR 1 ENGINE IAW 71-00-00 PAGE 563 TEST 5. PERFORMED ENGINE PERFORMANCE RUN, OP - [SDR WRNA20080024](https://openairdocs.org/sdr/WRNA20080024.md): Engine · malfunctioned · Mar 23, 2008 · N512MC · Boeing 747230B · Engine (Turbine/Turboprop) > BECAUSE OF HIGH HEAT AND HUMIDITY AT DUBAI, ENGINES WERE UNABLE TO MAKE TAKEOFF POWER, ABORTED TAKEOFF BEFORE 80 KNOTS AND RETURNED TO RAMP. PERFORMED MAIN ENGINE CONTROL TRIM ON NR 3 ENGINE IAW 71-00-00 PAGE 563 TEST 5. PERFORMED ENGINE PERFORMANCE RUN, OPS - [SDR WRNA20080027](https://openairdocs.org/sdr/WRNA20080027.md): Frame · damaged · Feb 27, 2008 · N512MC · Boeing 747230B · Fuselage Main, Frame > DURING 'B' CHECK, FASTENERS WERE FOUND LOOSE AND MISSING RIGHT SIDE FRAME TO INTERCOSTAL AT STATION 2674 TO 2680 W/L 305. FABRICATED REPAIR DOUBLER ANGLES IAW SRM 51-40-03 FIGURE 01 AND INSTALLED IAW SRM 51-30-02. - [SDR WRNA20080026](https://openairdocs.org/sdr/WRNA20080026.md): Longeron · gouged · Feb 27, 2008 · N512MC · Boeing 747230B · Fuselage Main, Longeron/Stringer > DURING B CHECK, A GOUGE WAS FOUND ON RT LONGERON AT STATION 2700 W/L 285. REMOVED DAMAGED AREA AND FABRICATED REPAIR DOUBLER IAW SRM 51-40-03 FIGURE 01 USING.100" 7075 T6 FORMED SECTION. INSTALLED REPAIR DOUBLER IAW SRM 51-30-02. - [SDR WRNA20080028](https://openairdocs.org/sdr/WRNA20080028.md): Frame · damaged · Feb 27, 2008 · N512MC · Boeing 747230B · Fuselage Main, Frame > DURING B CHECK, FOUND MISSING FASTENER AND ELONGATED HOLE RIGHT SIDE OF FRAME AND INTERCOSTAL AT STATION 2662 W/L 305. FABRICATED REPAIR DOUBLER IAW SRM 51-40-03 FIGURE 01 AND INSTALLED DOUBLER IAW SRM 51-30-02. - [SDR UIEA200700416](https://openairdocs.org/sdr/UIEA200700416.md): Frame · cracked · Sep 28, 2007 · N512MC · Boeing 747230B · Fuselage Main, Frame > FOUND MAIN DECK STA 1760 FRAME CRACKED AT STR 13R - 14R. REPAIRED PER BOEING MESSAGE 1-542767421-2. - [SDR UIEA200700415](https://openairdocs.org/sdr/UIEA200700415.md): Spar · corroded · Sep 28, 2007 · N512MC · Boeing 747230B · Wing Spar > RIGHT WING STATION 1337 FRONT SPAR TO REAR SPAR HAS CORROSION EVIDENT. REMOVED CORROSION IAW SRM 51-10-01. - [SDR UIEA200700414](https://openairdocs.org/sdr/UIEA200700414.md): Skin · delaminated · Sep 28, 2007 · N512MC · Boeing 747230B · Spoilers > NR 1 SPOILER INBOARD EDGE DELAMINATED. REPAIR CARRIED OUT PER SRM 51-40-24. - [SDR UIEA200700413](https://openairdocs.org/sdr/UIEA200700413.md): Skin · delaminated · Sep 28, 2007 · N512MC · Boeing 747230B · Spoilers > NR 4 SPOILER OUTBOARD CORNER DELAMINATED. REPAIR CARRIED OUT PER SRM 51-40-24. - [SDR UIEA200700412](https://openairdocs.org/sdr/UIEA200700412.md): Skin · delaminated · Sep 28, 2007 · N512MC · Boeing 747230B · Spoilers > NR 2 SPOILER OUTBOARD EDGE DELAMINATED. REPAIR CARRIED OUT PER SRM 51-40-24. - [SDR UIEA200700411](https://openairdocs.org/sdr/UIEA200700411.md): Spar · corroded · Sep 28, 2007 · N512MC · Boeing 747230B · Wing Spar > RIGHT WING AT WS 917- WS 1141 FRONT SPAR TO REAR SPAR HAS CORROSION EVIDENT. CORROSION REMOVED PER SRM 51-10-01. - [SDR UIEA200700409](https://openairdocs.org/sdr/UIEA200700409.md): Skin · corroded · Sep 28, 2007 · N512MC · Boeing 747230B · Fuselage Main, Plate/Skin > BS 1241 LBL 55- LBL 76 CTR SECTION UPPER SKIN CORROSION, LEVEL 1. BLENDED OUT IAW SRM 51-10-01 AND BOEING MESSAGE NUMBER 1-598402422-7. - [SDR UIEA200700408](https://openairdocs.org/sdr/UIEA200700408.md): Skin · corroded · Sep 28, 2007 · N512MC · Boeing 747230B · Fuselage Main, Plate/Skin > BS 1241 LBL 11- LBL 33 CTR SECTION UPPER SKIN CORROSION, LEVEL 1. BLENDED OUT IAW SRM 51-10-01 AND BOEING MESSAGE NUMBER 1-598402422-7. - [SDR UIEA200700407](https://openairdocs.org/sdr/UIEA200700407.md): Skin · corroded · Sep 28, 2007 · N512MC · Boeing 747230B · Fuselage Main, Plate/Skin > BS 1241 LBL 11- RBL 11 CTR SECTION UPPER SKIN CORROSION, LEVEL 1. BLENDED OUT IAW SRM 51-10-01 AND BOEING MESSAGE NUMBER 1-598402422-7. - [SDR UIEA200700410](https://openairdocs.org/sdr/UIEA200700410.md): Seat Track · corroded · Sep 28, 2007 · N512MC · Boeing 747230B · Fuselage, Seat/Cargo Attach Fittings > MAIN DECK BS 459 LBL 64 SEAT TRACK CORROSION, LEVEL 2. REPAIRED SEAT TRACK IAW SRM 53-10-05 FIG 1A. - [SDR UIEA200700406](https://openairdocs.org/sdr/UIEA200700406.md): Fairing · damaged · Sep 28, 2007 · N512MC · Boeing 747230B · Engine Thrust Reverser > NR 3 ENGINE LT T/R AFT UPPER FAIRING FOUND TORN AND MATERIAL MISSING. REPAIRED PER EO4778A109. - [SDR UIEA200700404](https://openairdocs.org/sdr/UIEA200700404.md): Floorbeam · corroded · Sep 26, 2007 · N512MC · Boeing 747230B · Fuselage Main, Floor Beam > MAIN DECK BS 1720 LBL 76- LBL 98 FLOORBEAM UPPER CHORD HAS LEVEL 2 CORROSION. REPAIRED PER SRM 53-10-07 FIG 2. RAM FORM AND CPCP SUBMITTED TO ENGINEERING. - [SDR UIEA200700403](https://openairdocs.org/sdr/UIEA200700403.md): Skin · corroded · Sep 26, 2007 · N512MC · Boeing 747230B · Wing, Plate/Skin > LEFT WING UPPER SURFACE WS 807 TO STR 516 SURFACE CORROSION EVIDENT. CORROSION REMOVED AND REPROTECTED IAW SRM 51-10-01 AND 51-10-02. - [SDR UIEA200700402](https://openairdocs.org/sdr/UIEA200700402.md): Skin · corroded · Sep 26, 2007 · N512MC · Boeing 747230B · Wing, Plate/Skin > LEFT WING UPPER SURFACE WS 353 TO WS 586 REAR SPAR HAS MINOR SURFACE CORROSION EVIDENT. CORROSION REMOVED AND REPROTECTED IAW SRM 51-10-01 AND 51-10-02. - [SDR UIEA200700401](https://openairdocs.org/sdr/UIEA200700401.md): Spar · corroded · Sep 26, 2007 · N512MC · Boeing 747230B · Wing Spar > LEFT WING UPPER SURFACE MID SPAR WS 1112, WS 1280, WS 1330 AND WS 1392 HAS MINOR SURFACE CORROSION EVIDENT. CORROSION REMOVED AND REPROTECTED IAW SRM 51-10-01 AND 51-10-02. - [SDR UIEA200700405](https://openairdocs.org/sdr/UIEA200700405.md): Bearing · corroded · Sep 26, 2007 · N512MC · Boeing 747230B · Landing Gear Retraction/Extension System > RIGHT BODY GEAR RETRACT ACTUATOR LOWER END BEARING CORRODED. REMOVED CORROSION AS PER TEC - XMN-07-01832 PROPOSAL REF OHM 32-33-11. - [SDR UIEA200700400](https://openairdocs.org/sdr/UIEA200700400.md): Skin · corroded · Sep 26, 2007 · N512MC · Boeing 747230B · Wing, Plate/Skin > RIGHT WING SURFACE CORROSION EVIDENT AROUND FASTENER HEAD FROM WS 724.5 TO WS 917 BETWEEN MID SPAR AND FRONT SPAR. CORROSION REMOVED AND REPROTECTED IAW SRM 51-10-01 AND 51-10-02. - [SDR UIEA200700399](https://openairdocs.org/sdr/UIEA200700399.md): Skin · corroded · Sep 26, 2007 · N512MC · Boeing 747230B · Wing, Plate/Skin > RIGHT WING SURFACE CORROSION EVIDENT AROUND FASTENER HEAD FROM WS 724.5 TO WS 917 BETWEEN MID SPAR AND REAR SPAR. CORROSION REMOVED AND REPROTECTED IAW SRM 51-10-01 AND 51-10-02. - [SDR UIEA200700398](https://openairdocs.org/sdr/UIEA200700398.md): Skin · corroded · Sep 26, 2007 · N512MC · Boeing 747230B · Wing, Plate/Skin > RIGHT WING SURFACE CORROSION EVIDENT AROUND FASTENER HEAD FROM WS 528 TO WS 724.5 BETWEEN MID SPAR AND REAR SPAR. CORROSION REMOVED AND REPROTECTED IAW SRM 51-10-01 AND 51-10-02. - [SDR UIEA200700397](https://openairdocs.org/sdr/UIEA200700397.md): Skin · corroded · Sep 26, 2007 · N512MC · Boeing 747230B · Wing, Plate/Skin > RIGHT WING SURFACE CORROSION EVIDENT AROUND FASTENER HEAD FROM SIDE OF BODY TO WS 528 BETWEEN MID SPAR AND FRONT SPAR. CORROSION REMOVED AND REPROTECTED IAW SRM 51-10-01 AND 51-10-02. - [SDR UIEA200700396](https://openairdocs.org/sdr/UIEA200700396.md): Skin · corroded · Sep 26, 2007 · N512MC · Boeing 747230B · Wing, Plate/Skin > RIGHT WING SURFACE CORROSION EVIDENT AROUND FASTENER HEAD FROM SIDE OF BODY TO WS 528 BETWEEN MID SPAR AND FRONT SPAR. CORROSION REMOVED AND REPROTECTED IAW SRM 51-10-01 AND 51-10-02. - [SDR UIEA200700395](https://openairdocs.org/sdr/UIEA200700395.md): Skin · corroded · Sep 26, 2007 · N512MC · Boeing 747230B · Wing, Plate/Skin > RIGHT WING SURFACE CORROSION EVIDENT AROUND FASTENER HEAD FROM WS 528 TO WS 724.5 BETWEEN MID SPAR AND FRONT SPAR. CORROSION REMOVED AND REPROTECTED IAW SRM 51-10-01 AND 51-10-02. - [SDR UIEA200700394](https://openairdocs.org/sdr/UIEA200700394.md): Skin · corroded · Sep 26, 2007 · N512MC · Boeing 747230B · Wing, Plate/Skin > RIGHT WING SURFACE CORROSION EVIDENT AROUND FASTENER HEAD FROM SIDE OF BODY TO WS 528 BETWEEN MID SPAR AND REAR SPAR. CORROSION REMOVED AND REPROTECTED IAW SRM 51-10-01 AND 51-10-02. - [SDR UIEA200700377](https://openairdocs.org/sdr/UIEA200700377.md): Seat Track · corroded · Sep 25, 2007 · N512MC · Boeing 747230B · Fuselage, Seat/Cargo Attach Fittings > U/D BS 520 RBL 46 SEAT TRACK CORROSION. REPAIR SEAT TRACK IAW SRM 53-10-05 FIG 1A. - [SDR UIEA200700393](https://openairdocs.org/sdr/UIEA200700393.md): Skin · corroded · Sep 25, 2007 · N512MC · Boeing 747230B · Wing, Plate/Skin > RIGHT WING SURFACE CORROSION EVIDENT AROUND FASTENER HEAD. CORROSION REMOVED AND REPROTECTED IAW SRM 51-10-01 AND 51-10-02. - [SDR UIEA200700381](https://openairdocs.org/sdr/UIEA200700381.md): Spar · corroded · Sep 25, 2007 · N512MC · Boeing 747230B · Wing Spar > LHW UPPER SURFACE WS 353 TO WS 586 SPAR SURF CORROSION EVIDENT. CORROSION REMOVED AND REPROTECTED IAW SRM 51-10-01 AND 51-10-02. - [SDR UIEA200700371](https://openairdocs.org/sdr/UIEA200700371.md): Skin · corroded · Sep 25, 2007 · N512MC · Boeing 747230B · Wing, Plate/Skin > SURFACE CORROSION EVIDENT AROUND HEAD FROM WS 724.50 TO WS 917.00 BETWEEN REAR SPAR AND MID SPAR. SURF, CORROSION REMOVED AND REPROTECTED IAW SRM 51-10-01 AND 51-10-02. - [SDR UIEA200700382](https://openairdocs.org/sdr/UIEA200700382.md): Skin · corroded · Sep 25, 2007 · N512MC · Boeing 747230B · Wing, Plate/Skin > LHW UPPER SURFACE MID SPAR WS 1112 WS 1280 WS 1330 WS 1392 CORROSION EVIDENT. SURF CORROSION REMOVED AND REPROTECTED IAW SRM 51-10-01 AND 51-10-02. - [SDR UIEA200700383](https://openairdocs.org/sdr/UIEA200700383.md): Skin · corroded · Sep 25, 2007 · N512MC · Boeing 747230B · Wing, Plate/Skin > SURF CORROSION EVIDENT AROUND HEAD FROM WS 528 TO WS 724.5 BETWEEN REAR SPAR AND MID SPAR. SURF CORROSION REMOVED AND REPROTECTED IAW SRM 51-10-01 AND 51-10-02. - [SDR UIEA200700378](https://openairdocs.org/sdr/UIEA200700378.md): Seat Track · corroded · Sep 25, 2007 · N512MC · Boeing 747230B · Fuselage, Seat/Cargo Attach Fittings > BS 1960 LBL 99 SEAT TRACK FOUND CORROSION. BLEND OUT CORROSION IAW SRM 51-10-01 AND REPROTECTED IAW 51-10-02. - [SDR UIEA200700379](https://openairdocs.org/sdr/UIEA200700379.md): Seat Track · corroded · Sep 25, 2007 · N512MC · Boeing 747230B · Fuselage, Seat/Cargo Attach Fittings > BS 1980 RBL 90 SEAT TRACK FOUND CORROSION. BLEND OUT CORROSION IAW SRM 51-10-01 AND REPROTECTED IAW 51-10-02. - [SDR UIEA200700380](https://openairdocs.org/sdr/UIEA200700380.md): Skin · corroded · Sep 25, 2007 · N512MC · Boeing 747230B · Wing, Plate/Skin > LHW UPPER SURFACE WS 807 STR S16 CORROSION EVIDENT. SURF CORROSION REMOVED AND REPROTECTED IAW SRM 51-10-01 AND 51-10-02. - [SDR UIEA200700376](https://openairdocs.org/sdr/UIEA200700376.md): Spar · corroded · Sep 12, 2007 · N512MC · Boeing 747230B · Wing Spar > WS 317 - WS 1141, FRONT SPAR TO REAR SPAR CORROSION EVIDENCED. SURFACE CORROSION REMOVED AND REPROTECTED IAW SRM 51-10-01 AND 51-10-02. - [SDR UIEA200700375](https://openairdocs.org/sdr/UIEA200700375.md): Skin · delaminated · Sep 12, 2007 · N512MC · Boeing 747230B · Spoilers > NR 2 SPOILER I/B EDGE DELAMINATION EVIDENCE. REPAIR CARRIED OUT IAW SRM 51-40-24. - [SDR UIEA200700374](https://openairdocs.org/sdr/UIEA200700374.md): Skin · corroded · Sep 12, 2007 · N512MC · Boeing 747230B · Spoilers > LHW SPOILER: NR 4 SPOILER O/B CORNER DELAMINATION EVIDENCE. REPAIR CARRIED OUT IAW SRM 51-40-24. - [SDR UIEA200700373](https://openairdocs.org/sdr/UIEA200700373.md): Skin · corroded · Sep 12, 2007 · N512MC · Boeing 747230B · Spoilers > LHW SPOILER: NR 1 SPOILER I/B EDGE DELAMINATION EVIDENCE. NR 1 SPOILER PNL REPLACED IAW AMM 27-61-02. - [SDR UIEA200700372](https://openairdocs.org/sdr/UIEA200700372.md): Skin · corroded · Sep 12, 2007 · N512MC · Boeing 747230B · Wing, Plate/Skin > RHW UPP SKIN PNL: WS1141-WS1337, FRONT SPAR TO REAR SPAR SEVERAL AREAS OF CORROSION EVIDENCED. SURF CORROSION REMOVED AND REPROTECTED IAW SRM 51-10-01 AND SOPM 20-43-03. - [SDR UIEA200700370](https://openairdocs.org/sdr/UIEA200700370.md): Skin · corroded · Sep 12, 2007 · N512MC · Boeing 747230B · Wing, Plate/Skin > SURFACE CORROSION EVIDENT AROUND FASTENER HEAD FROM WS 724.50 TO WS 917.00 BETWEEN FRONT SPAR AND MID SPAR. SURF CORROSION REMOVED AND REPROTECTED IAW SRM 51-10-01 AND 51-10-02. Next page: https://openairdocs.org/deregistered/N512MC-2011-06-06/reports.md?page=2 ## The whole list in SQL Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS: ```sql 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 = 'N512MC' AND deregistration_id = 'N512MC-2011-06-06' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/deregistered/N512MC-2011-06-06/reports --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.