# N520UP: 1980 Boeing 747-212B, registration cancelled 2010-06-10

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: June 10, 2010
- Status when cancelled: Valid registration
- Airframe: [Boeing 747-212B](https://openairdocs.org/model/boeing-747-212b) (registry code 1384886)
- Engine: [Pratt & Whitney JT9D series](https://openairdocs.org/engine/pratt-whitney-jt9d-series) (registry code 52054)
- Data sheets: [TCDS A20WE](https://openairdocs.org/tcds/A20WE) (OpenAirDocs)
- Serial number: 21943
- Year built: 1980
- Type of aircraft: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: May 4, 1997
- Certificate issued: June 10, 2010
- Last registry action: June 10, 2010
- Mode S code: A68ABE
- Owner when cancelled: [Stewart Industries International LLC](https://openairdocs.org/faa-owner/STEWART%20INDUSTRIES%20INTERNATIONAL%20LLC)
- Location: [Guthrie, OK](https://openairdocs.org/faa-place/OK/Guthrie)
- Owner type: Corporation
- Owner's area on the map: 35.8679° N, 97.4344° W: Placed by OpenAirDocs at the center of ZIP code 73044, within about 9 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N520UP
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=520UP
- Page: https://openairdocs.org/deregistered/N520UP-2010-06-10

From the FAA registry file of October 29, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Boeing 747-212B: https://openairdocs.org/model/boeing-747-212b.md

## Service difficulty reports (223, newest 50)

Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

- [SDR UPS08454081](https://openairdocs.org/sdr/UPS08454081), Nov 26, 2008: LIGHT. DAMAGED. INSPECTION TYPE:N/A EMERGENCY EXIT LIGHT ON CEILING OF MAIN CARGO DECK JUST INSIDE MAIN ENTRY DOOR DAMAGED. REPLACED LIGHT ASSY PER MM 31-51-07, OPS NORMAL. THI
- [SDR UPS08452200](https://openairdocs.org/sdr/UPS08452200), May 8, 2008: WING. DAMAGED. LT WING DAMAGE ON CONTACT WITH POLE ON TAXI IN.
- [SDR UPS08451597](https://openairdocs.org/sdr/UPS08451597), Feb 1, 2008: DOOR. OUT OF RIG. L1 ENTRY DOOR OUT OF RIG. FOUND LOWER HINGE BOLTS LOOSE, REPLACED BOLTS. GROUND OPS CHECKS GOOD PER MM 52-11-02. OK FOR SERVICE.
- [SDR UPS08451576](https://openairdocs.org/sdr/UPS08451576), Jan 29, 2008: FAN BLADE. DAMAGED. AFTER LANDING IN MEM, MX REPORTED DAMAGE TO MULTIPLE FAN BLADES AND INSIDE OF COWLING ON NR 2 ENGINE. THERE WERE NO IN FLIGHT INDICATIONS. REMOVED AND REPLACED 
- [SDR UPS07451134](https://openairdocs.org/sdr/UPS07451134), Nov 11, 2007: BATTERY PACK. DISCHARGED. INSPECTION TYPE:N/A EMERGENCY LIGHT ON MCD AT STA 420 LT DOES NOT TEST. REMOVED AND REPLACED EMERGENCY LIGHT/BATTERY ASSY WITH REF TO MM 33-51 51-07. OPS CHECK 
- [SDR UPS07450027](https://openairdocs.org/sdr/UPS07450027), Jun 8, 2007: STRUCTURE. CRACKED. INSPECTION TYPE:C CRACK FOUND AT 1EA FASTENER HOLE BELOW STR 15ER AT BS 420 AFT INNER CHORD (P/N: 65B01835-7) THROUGH THICKNESS CRACK 0.040 INCH LONG RUNNING O/
- [SDR UPS07450024](https://openairdocs.org/sdr/UPS07450024), Jun 8, 2007: STRUCTURE. CRACKED. INSPECTION TYPE:C CRACK FOUND AT 1EA FASTENER HOLE BELOW STR 15ER AT BS 420 FWD INNER CHORD (P/N: 65B01835-34) CRACKED THROUGH THICKNESS 0.040 INCH LONG RUNNING
- [SDR UPS07450045](https://openairdocs.org/sdr/UPS07450045), Jun 7, 2007: FRAME. CRACKED. INSPECTION TYPE:C M/D BS 420 S14ER FRAME FOUND CRACKED AS MARKED. CRACK LENGTH 5.5". BS 420 BTN S13AR TO S17R FRAME REPAIRED AS PER RS R53-12-35815. CONTINUED I
- [SDR UPS07450010](https://openairdocs.org/sdr/UPS07450010), Jun 7, 2007: RIB. CORRODED. INSPECTION TYPE:C LEFT WING L/E UPPER PANEL AT WS 970 FOUND BULGED UP. CORROSION BLEND OUT 0.030 X 1 X 2 INCHES LT WING L/E UPPER WS 970 UPPER CHORD REPLACED AS
- [SDR UPS07450013](https://openairdocs.org/sdr/UPS07450013), Jun 6, 2007: STRINGER SPLICE. CORRODED. INSPECTION TYPE:C FWD CARGO COMPT STR 40L AT BS 740 SPLICE CORROSION FOUND. REMOVED CORROSION BLEND OUT 0.025 X .375 X .625 INCH OUT OF SRM 53-10-01 FIG 1 LIMIT
- [SDR UPS07450012](https://openairdocs.org/sdr/UPS07450012), Jun 6, 2007: STRINGER SPLICE. CORRODED. INSPECTION TYPE:C FWD CARGO COMPT STR 39L AT BS 740 SPLICE CORROSION FOUND. REMOVED (CORROSION BLEND OUT 0.029" X .5 X .75 INCH OUT OF LIMITS SRM 53-10-01 FIG 1
- [SDR UPS07450036](https://openairdocs.org/sdr/UPS07450036), Jun 4, 2007: FRAME. CRACKED. INSPECTION TYPE:C CABIN BS 480 S15L FRAME FOUND CRACK. CRACK LENGTH 2 1/4" CABIN BS 480 STR 13AL TO STR 16L FRAME REPLACED AND INSTALLED AS PER SRM 51-10-01 PG 
- [SDR UPS07450020](https://openairdocs.org/sdr/UPS07450020), Jun 4, 2007: DOUBLER. CRACKED. INSPECTION TYPE:C CABIN BS 460 S14R FRAME DOUBLER FOUND CRACKED (CRACK LENGTH 1.5 INCH). CABIN BS 460 BETWEEN STR 11R TO STR 14ER AREA FRAME ATTACH DOUBLER REPL
- [SDR UPS07450019](https://openairdocs.org/sdr/UPS07450019), Jun 4, 2007: DOUBLER. CRACKED. INSPECTION TYPE:C CABIN BS 420 S14ER FRAME DOUBLER FOUND CRACKED. (CRACK LENGTH 6 INCHES) CABIN BS 420 STR 13AR TO STR 15R FRAME ATTACH DOUBLER AND BETWEEN STR 
- [SDR UPS07450018](https://openairdocs.org/sdr/UPS07450018), Jun 4, 2007: ATTACH ANGLE. CRACKED. INSPECTION TYPE:C CABIN R1 DOOR CUTOUT FWD UPPER CORNER ATTACH ANGLE FOUND CRACK (CRACK LENGTH .375 INCH). CABIN R1 DOOR CUTOUT FWD UPPER CORNER ATTACH ANGLE RE
- [SDR UPS07450017](https://openairdocs.org/sdr/UPS07450017), Jun 4, 2007: ATTACH ANGLE. CRACKED. INSPECTION TYPE:C CABIN L1 DOOR CUTOUT FWD UPPER ATTACH ANGLE FOUND CRACKED APPROX AT BS 440 S16L (CRACK LENGTH .5 INCH). CABIN L1 DOOR CUTOUT FWD UPPER CORNER 
- [SDR UPS07450011](https://openairdocs.org/sdr/UPS07450011), Jun 4, 2007: FRAME. CRACKED. INSPECTION TYPE:C CABIN BS 480 S15R FRAME FOUND CRACK. CRACK LENGTH 2.5 INCHES. CABIN BS 480 STR 13AR TO STR 16R FRAME REPLACED AND INSTALLED AS PER SRM 51-10-0
- [SDR UPS07450016](https://openairdocs.org/sdr/UPS07450016), Jun 3, 2007: SKIN. DAMAGED. INSPECTION TYPE:C NR 1 PYLON STRUT O/B LOWER EDGE SKIN FOUND DAMAGED AT STA 236. NR 1 PYLON STRUT O/B LOWER EDGE SKIN REPAIRED AT STA 236 AS PER SRM 54-34-03 FI
- [SDR UPS07450035](https://openairdocs.org/sdr/UPS07450035), Jun 2, 2007: FRAME. CRACKED. INSPECTION TYPE:C NR 2 DOOR FWD FRAME AT BS 800 RT SIDE FOUND CRACKED AT NR 5 AND NR 6 FAST HOLE BELOW STR 16 BOTH HOLE CRACKED AT STRAP WITH LENGTH 0.040" RUNN
- [SDR UPS07450037](https://openairdocs.org/sdr/UPS07450037), Jun 1, 2007: STRINGER. CORRODED. INSPECTION TYPE:C FWD CARGO COMPT S36L STRINGER FOUND CORROSION AT STA 740. CORROSION BLEND OUT 0.045" BY 1/2" BY 2" EXCEED SRM LIMIT. FWD CARGO COMPT BS 740 TO
- [SDR UPS07450034](https://openairdocs.org/sdr/UPS07450034), Jun 1, 2007: FRAME. CRACKED. INSPECTION TYPE:C BS 800 RT SIDE AT STR16 INNER CHORD 1 HOLE FOUND CRACKED AT 9 O/C POSITION WITH LENGTH 0.125" LENGTH. M/D BS 800 RT SIDE FRAME FWD INNER CHORD
- [SDR UPS07450028](https://openairdocs.org/sdr/UPS07450028), Jun 1, 2007: STRINGER. CORRODED. INSPECTION TYPE:C FWD CARGO COMPT S39L STRINGER FOUND CORROSION AT STA 745. (CORROSION BLEND OUT 0.063 X .875 X 1.25 INCH OUT OF SRM 53-10-01 FIG 1 LIMITS). FWD
- [SDR UPS07450025](https://openairdocs.org/sdr/UPS07450025), Jun 1, 2007: STRINGER. CORRODED. INSPECTION TYPE:C FWD CARGO COMPT S40L STRINGER FOUND CORROSION AT STA 740. (CORROSION BLEND OUT 0.040 X .75 X 1 INCH OUT OF SRM 53-10-01 FIG 1 LIMITS). FWD CAR
- [SDR UPS07450014](https://openairdocs.org/sdr/UPS07450014), Jun 1, 2007: WEB. CRACKED. INSPECTION TYPE:C FX LOWER FUSELAGE OF INTERIOR SUPPORT WEB FOUND CRACKED AT STA 2220 TO STA 2240 STR 42L (CRACK LENGTH 2 INCHES). FX LOWER FUSELAGE OF INTERIOR
- [SDR UPS07450030](https://openairdocs.org/sdr/UPS07450030), May 31, 2007: WEB. CRACKED. INSPECTION TYPE:C M/D HORIZONTAL SUPPORT WEB FOUND CRACKED JUST AT BS 820 STR 10L. (CRACK LENGTH .75 INCH). M/DECK BS 820 STR 10L HORIZONTAL SUPPORT WEB REPAIRE
- [SDR UPS07450021](https://openairdocs.org/sdr/UPS07450021), May 31, 2007: WEB. CRACKED. INSPECTION TYPE:C M/D HORIZONTAL SUPPORT WEB FOUND CRACKED JUST AT BS 820 STR 10L (CRACK LENGTH .5 INCH). M/DECK HORIZONTAL SUPPORT WEB AT BS 820 STR 10L AREA R
- [SDR UPS07450043](https://openairdocs.org/sdr/UPS07450043), May 30, 2007: DOUBLER. CRACKED. INSPECTION TYPE:C CRACK FOUND AT DOUBLER AT LT SIDE OF BS 820 STR 10A ATTACHED TENSION TIE NR 4 HOLE CRACK LENGTH 3/16" APPROX AT 8 O/C POSITION. M/D BS 820 LT 
- [SDR UPS07450042](https://openairdocs.org/sdr/UPS07450042), May 30, 2007: FILLER. CRACKED. INSPECTION TYPE:C CRACK FOUND AT FILLER AT LT SIDE OF BS 820 STR 10A ATTACHED TENSION TIE NR 12 HOLE AT 4 AND 7 O/C POSITION. CRACK LENGTH 3/32" AND 1/16". M/D 
- [SDR UPS07450015](https://openairdocs.org/sdr/UPS07450015), May 30, 2007: STRINGER. CRACKED. INSPECTION TYPE:C FWD CARGO COMPT STRINGER FOUND CRACKED AT STA 280 S41R (CRACK LENGTH .375 INCH). FWD CARGO COMPT STA 260-280 STR 41R STRINGER REPLACED AS PER 
- [SDR UPS07450044](https://openairdocs.org/sdr/UPS07450044), May 29, 2007: CHANNEL. CRACKED. INSPECTION TYPE:C CRACK FOUND AT FWD CHANNEL OF BS 860 RBL80 TENSION TIE AT HOLE NR 6, THE CRACK WAS FOUND RUNNING AT 5 O/C POSITION WITH LENGTH 0.0625" APPROX.
- [SDR UPS07450040](https://openairdocs.org/sdr/UPS07450040), May 29, 2007: PLATE. DAMAGED. INSPECTION TYPE:C M/D BS 940 LT TENSION TIE ATT STEEL PLATE FOUND SHORT EDGE MARGIN AT MOST O/B. M/D BS 940 LT TENSION TIE ATT STEEL PLATE REPLACE AND INSTALLED
- [SDR UPS07450039](https://openairdocs.org/sdr/UPS07450039), May 29, 2007: FILLER. CRACKED. INSPECTION TYPE:C CRACK FOUND AT BS 940 S8L TENSION TIE AT HOLE NR 11 THE CRACK WAS FOUND THROUGH THICKNESS AT THE FILLER. CRACK LENGTH 3/8". M/D BS 940 LT FRAM
- [SDR UPS07450038](https://openairdocs.org/sdr/UPS07450038), May 29, 2007: CHANNEL. CRACKED. INSPECTION TYPE:C CRACK FOUND AT AFT CHANNEL OF BS 940 S8L TENSION TIE AT HOLE NR 16, THE CRACK WAS FOUND IN FWD FACE WITH LENGTH 0.030" APPROX. M/D BS 940 LT S
- [SDR UPS07450033](https://openairdocs.org/sdr/UPS07450033), May 29, 2007: CHANNEL. CRACKED. INSPECTION TYPE:C CRACK FOUND AT FWD CHANNEL AT BS820 S10AR TENSION TIE AT HOLE NR 4 THE CRACK WAS FOUND RUNNING AT 12 O/C POSITION WITH LENGTH 0.040" APPROX. B
- [SDR UPS07450026](https://openairdocs.org/sdr/UPS07450026), May 29, 2007: CHANNEL. CRACKED. INSPECTION TYPE:C LT WING NR 4 L/E PDU AFT SUPPORT CHANNEL FOUND CRACKED AT MOUNT BOLT AREA. (CRACK LENGTH .375 INCH). LT WING NR 4 L/E PDU AFT SUPPORT CHANNEL 
- [SDR UPS07450041](https://openairdocs.org/sdr/UPS07450041), May 28, 2007: PLATE. DAMAGED. INSPECTION TYPE:C M/D BS 840 RT TENSION TIE ATTACH STEEL PLATE SHORT EDGE MARGIN FOUND AT UPPER ROW NR 4 COUNT FROM O/B. M/D BS 840 RT TENSION TIE ATTACH S/STEE
- [SDR UPS07450023](https://openairdocs.org/sdr/UPS07450023), May 28, 2007: STRINGER CLIP. CRACKED. INSPECTION TYPE:C THROUGH THICKNESS CRACK FOUND AT BS 880 STR 9R TENSION TIE AT AFT ATTACHED TIE CLIP THE CRACK RUNNING AT UPWARD DIRECTION (CRACK LENGTH .125 I
- [SDR UPS07450022](https://openairdocs.org/sdr/UPS07450022), May 28, 2007: DOUBLER. CRACKED. INSPECTION TYPE:C THROUGH THICKNESS CRACK FOUND AT BS 880 STR 9R TENSION TIE AT NR 10 FASTENER HOLE OF FRAME DOUBLER THE CRACK RUNNING AT UPWARD DIRECTION (CRAC
- [SDR UPS07449127](https://openairdocs.org/sdr/UPS07449127), Feb 6, 2007: LIGHT. INOPERATIVE. EMERGENCY LIGHT MODULE M306 INOP. LOCATED AT UPPER DECK STA 590. ITEM DEFERRED REFERENCE M343595. REPOSITIONED CEILING PANEL TO CORRECT PANEL POSITION. OPS CHEC
- [SDR UPS07449121](https://openairdocs.org/sdr/UPS07449121), Feb 6, 2007: PANEL. MISINSTALLED. FOUND EMERGENCY LIGHT M301 INOP. FOUND CEILING PANEL INSTALLED IN WRONG LOCATION. SWAP TO CORRECT. SWAPPED CEILING PANELS, HOOKED UP CORRECT C/P TO EMERG LIGHT 
- [SDR UPS06447973](https://openairdocs.org/sdr/UPS06447973), Sep 10, 2006: WINDOW FRAME. CORRODED. FOUND CORROSION ON UPPER RT (F/O'S) R1 WINDOW FRAME. BEGAN REMOVAL OF CORROSION BY MECHANICAL MEANS AS PER SRM 56-10-01 & 51-10. REMOVED FILLER AND FAB'D NEW PA
- [SDR UPS06447712](https://openairdocs.org/sdr/UPS06447712), Aug 10, 2006: BEAM. CRACKED. AC FERRIED FOR REPAIR, CRACK IN LT WING LEADING EDGE UPPER CHORD AT STA 952. CRACK HAS BEEN STOP DRILLED IAW MFG ENG INSTRUCTIONS. DEACTIVATED GROUP A LEADING E
- [SDR UPS06447466](https://openairdocs.org/sdr/UPS06447466), Jul 26, 2006: O-RING. WORN. INSPECTION TYPE:N/A ATB - IMMEDIATELY AFTER T/O SMOKE WAS SENSED IN C/P. SMOKE WAS COMING FROM THE AREA OF WINDOW L1. WINDOW HEAT WAS TURNED OFF. RAN CHECKLIST.
- [SDR UPS06446991](https://openairdocs.org/sdr/UPS06446991), May 27, 2006: STRUCTURE. CRACKED. FOUND CRACK IN FWD LWR CARGO DOOR STRUCTURE. A/C WILL FERRY TO PAE. STOP DRILLED END OF CRACK TO .250 DIA HOLE. ROUTED OUT CRACK. RE- WORK OUTER SKIN TO INITAL 
- [SDR UPS06446807](https://openairdocs.org/sdr/UPS06446807), May 7, 2006: ANGLE. CORRODED. AFT LWR CARGO PIT DOOR OPENING AND FWD LWR CORNER HAS CORRODED ANGLE REMOVED DAMAGED ANGLE. FABRICATED NEW ANGLE IAW BOEING DRAWING 65B04642. OK TO INSTALL. INS
- [SDR UPS06446039](https://openairdocs.org/sdr/UPS06446039), Jan 4, 2006: WEB. CRACKED. INSPECTION TYPE:C NR 3 PYLON REAR MOUNT B/H FWD AND AFT OB FRAME WEB FOUND CRACKS. ( FWD FRAME .3125 INCH AND 1.375 INCHES ) ( AFT FRAME .1875 INCH AND 1INCH ) 
- [SDR UPS06445970](https://openairdocs.org/sdr/UPS06445970), Jan 4, 2006: STIFFENER. CRACKED. INSPECTION TYPE:C NWW, RT SIDEWALL PANEL BS 280-300 1ST STIFFENER (COUNT FROM TOP) FOUND CRACK AT RADIUS APPROX 1/4" LONG. STIFFENER REPLACED AS PER SRM 51-10-0
- [SDR UPS06445969](https://openairdocs.org/sdr/UPS06445969), Jan 4, 2006: STIFFENER. CRACKED. INSPECTION TYPE:C NOSE W/W RT SIDEWALL PANEL BS 280-300 4TH STIFFENER (COUNT FROM TOP) FOUND CRACK AT RADIUS APPROX 1/4" LONG. NOSE W/W RT SIDEWALL PANEL BS 280
- [SDR UPS06445968](https://openairdocs.org/sdr/UPS06445968), Jan 4, 2006: STIFFENER. CRACKED. INSPECTION TYPE:C NWW, RT SIDEWALL PANEL BS 300-320 4TH STIFFENER (COUNT FROM TOP) FOUND CRACK AT RADIUS APPROX 1/4" LONG. STIFFENER REPLACED AS PER SRM 51-10-0
- [SDR UPS06445967](https://openairdocs.org/sdr/UPS06445967), Jan 4, 2006: STIFFENER. CRACKED. INSPECTION TYPE:C NOSE W/W RT SIDEWALL PANEL BS 300-320 5TH STIFFENER (COUNT FROM TOP) FOUND CRACK AT RADIUS APPROX 3/16" LONG. NOSE W/W RT SIDE WALL PANEL BS 3

All 223: https://openairdocs.org/deregistered/N520UP-2010-06-10/reports.md

## NTSB investigations (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB DCA00WA049](https://openairdocs.org/ntsb/DCA00WA049), May 12, 2000: Boeing 747-200 (N520UP), Ireland, incident, no damage

## FAA accident and incident reports (2)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Incident 20080508836829I](https://openairdocs.org/incident/20080508836829I), May 8, 2008: Boeing 747212B (N520UP), Louisville, KY, Minor damage. (-23) After landing ipxa flight 751 was cleared to taxi to ramp 6 spot 8 at ksdf. Upon arrival at the entrance to ramp 6 a ground marshaller was observed in…
- [Incident 19960913035339I](https://openairdocs.org/incident/19960913035339I), Sep 13, 1996: Boeing 757222 (N520UP), Omaha, NE. Narrative: N520UA, a B-757 operated as united air lines, inc., flight 308 from oakland, CA, to chicago, IL, diverted into Omaha, NE, after experiencing…

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