# N520AM: 2000 Boeing 737-81Q, registration cancelled 2021-02-09 - Type: Cancelled registration (FAA registry, deregistered aircraft) - Cancelled: February 9, 2021 - Exported to: Malaysia - Status when cancelled: Valid registration - Airframe: [Boeing 737-81Q](https://openairdocs.org/model/boeing-737-81q) (registry code 13844GE) - Engine: [CFM International CFM56-7B26 series](https://openairdocs.org/engine/cfm-international-cfm56-7b26-series) (registry code 13045) - Serial number: 29052 - Year built: 2000 - Type of aircraft: Fixed wing multi engine - Engine type: Turbo-fan - Airworthiness: Standard, transport - Airworthiness date: March 1, 2011 - Certificate issued: December 16, 2020 - Last registry action: December 16, 2020 - Mode S code: A688FA - Owner when cancelled: [Bank Of Utah Trustee](https://openairdocs.org/faa-owner/BANK%20OF%20UTAH%20TRUSTEE) - Location: [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City) - Owner type: Corporation - Owner's area on the map: 40.7558° N, 111.8843° W: Placed by OpenAirDocs at the center of ZIP code 84111, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based - The mark today: https://openairdocs.org/aircraft/N520AM - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=520AM - Page: https://openairdocs.org/deregistered/N520AM-2021-02-09 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 737-81Q: https://openairdocs.org/model/boeing-737-81q.md ## Service difficulty reports (42) Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. - [SDR ASMF20200603015](https://openairdocs.org/sdr/ASMF20200603015), Mar 12, 2020: TRIM SYSTEM. OUT OF ADJUST. DURING TRANSIT CHECK, IT WAS DETECTED THAT THE HORIZONTAL STABILIZER TRIM MOVEMENT WAS OUT OF RANGE. MAINTENANCE PERSONNEL PERFORMED REVISION TO STABILIZER DETE - [SDR ASMF20200602001](https://openairdocs.org/sdr/ASMF20200602001), Feb 3, 2020: SENSOR. FAILED. AIRCRAFT RETURNED TO PLATFORM DUE TO DURING PUSH BACK, IT WAS DETECTED SPOILER ASYMMETRY DURING FLIGHT CONTROLS CHECK. MAINTENANCE PERSONNEL PERFORMED FLIGHT CO - [SDR ASMF2019100912](https://openairdocs.org/sdr/ASMF2019100912), Sep 8, 2019: SENSOR. DAMAGED. AIRCRAFT REJECTED TAKE OFF BEFORE AT 70 KNOTS DUE TO AFT CARGO DOOR LIGHT TURNED ON. MAINTENANCE PERSONNEL PERFORMED REVISION TO AFT SERVICE DOOR IAW AMM 52-71- - [SDR ASMF2018101509022](https://openairdocs.org/sdr/ASMF2018101509022), Sep 25, 2018: HYDRAULIC LINE. DAMAGED. LOW PRESSURE HYDRAULIC PUMP SYSTEM B. CAPTAIN REPORTED THAT DURING CRUISE THE LOW PRESSURE HYDRAULIC PUMP SYSTEM B LIGHTS TURNED ON, SO FLIGHT CREW ACCOMPLISHED - [SDR ASMF20180918013](https://openairdocs.org/sdr/ASMF20180918013), Aug 23, 2018: VALVE. FAILED. AIRCRAFT PERFORMED AN EMERGENCY DESCENT DUE TO PRESSURIZATION SYSTEM FAILURE. MAINTENANCE PERSONNEL PERFORMED BITE TO CABIN PRESSURE CONTROLLERS IAW AMM 21-31-0 - [SDR ASMF200180918005](https://openairdocs.org/sdr/ASMF200180918005), Jul 22, 2018: STARTER. DAMAGED. AIRCRAFT PERFORMED AN UNSCHEDULED LANDING AT MZT DUE TO DURING CRUISE, THE LEFT ENGINE PRESENTED LOW OIL QUANTITY INDICATION; SO FLIGHT CREW ACCOMPLISHED THE QR - [SDR ASMF201802003](https://openairdocs.org/sdr/ASMF201802003), Feb 12, 2018: SENSOR. MALFUNCTIONED. CAPTAIN REPORTED THAT AFTER LANDING, FLAPS AND SLATS LEADING EDGE DID NOT RETRACT, MAINTENANCE PERFORMED A BITE TEST IAW FIM 27-51 DETECTING FAULT 27-53252, THE - [SDR ASMF201801017](https://openairdocs.org/sdr/ASMF201801017), Jan 5, 2018: SLAT SYSTEM. MALFUNCTIONED. CAPTAIN REPORTED THAT AFTER LANDING THE FLAPS AND SLATS DO NOT RETRACT. MAINTENANCE PERSONNEL PERFORMED BITE TO FSEU IAW FIM 27-53 TASK 803 PROCEDURE, NO CONFIR - [SDR ASMF201708008](https://openairdocs.org/sdr/ASMF201708008), Aug 23, 2017: SPOILER SYS. MALFUNCTIONED. AIRCRAFT RETURNS TO PLATFORM DUE TO DURING FLIGHT CONTROLS TESTS CAPTAIN REPORTED THAT SPOILERS DID NOT REACH THE MAXIMUM EXTENSION. AIRCRAFT WAS SENT TO HANGAR - [SDR ASMF201708003](https://openairdocs.org/sdr/ASMF201708003), Aug 6, 2017: CONTROL PANEL. MALFUNCTIONED. CAPTAIN REPORTED THAT DURING APPROACH AUTOTHROTTLE DISENGAGES CONTINUOUSLY, LEFT COURSE CAN NOT BE ADJUSTED DURING DESCENT PROCEDURE AND FLIGHT DIRECTOR CAPTAIN - [SDR ASMF20170717008](https://openairdocs.org/sdr/ASMF20170717008), Jun 29, 2017: COAX. DAMAGED. DURING TRANSIT CHECK CAPTAIN REPORTED IAS/MACH STAYS IN 100 OF ALTITUDE BUT SHOWS 50000 FT OF ALTITUDE AND NO NAV INDICATION, MAINTENANCE PERFORMED FIM PROCEDUR - [SDR ASMF201704017](https://openairdocs.org/sdr/ASMF201704017), Apr 28, 2017: SKIN. DAMAGED. DURING TRANSIT CHECK, IT WAS DETECTED A FOREIGN OBJECT DAMAGE IN THE LEFT INBOARD FLAP OF 4.843 LENGTH, 0.062 DEPTH, 2.718 WIDE. MAINTENANCE PERSONNEL PERFORMED - [SDR ASMF201703006](https://openairdocs.org/sdr/ASMF201703006), Mar 10, 2017: SENSOR. DAMAGED. AIRCRAFT PERFORMED AN EMERGENCY DESCENT AT GDL DUE TO DURING CLIMB, THE LEFT BLEED TRIP OFF LIGHT TURNED ON AND CONTROL PRESS AUTO, SEMI AUTO AND MANUAL WITH NO - [SDR ASMF201702003](https://openairdocs.org/sdr/ASMF201702003), Jan 6, 2017: SENSOR. FAILED. AIRCRAFT RETURNED TO GATE DUE TO A LE FLAP TRANSIT LIGHT ILLUMINATED AND LE DEVICE SLAT 1 LIGHT DID NOT ILLUMINATE. PERFORMED A BITE OF THE FSEU IAW FIM 27-51 T - [SDR ASMF2016072600016](https://openairdocs.org/sdr/ASMF2016072600016), Jun 8, 2016: AXLE. DAMAGED. DURING TRANSIT CHECK, IT WAS DETECTED A HIGH TEMPERATURE LOW PRESSURE AT MAIN WHEEL ASSY NUMBER 4. MAINTENANCE PERSONNEL PERFORMED THE FLAT SPOTTED TIRES CONDIT - [SDR ASMF201605007](https://openairdocs.org/sdr/ASMF201605007), Mar 17, 2016: OVEN. DEFECTIVE. AIRCRAFT RETURNED TO PLATFORM DUE TO AFTER ENGS START, SMOKE WAS DETECTED IN AFT GALLEY. PERFORMED SMOKE OR FUMES IN CABIN CONDITIONAL INSPECTION IAW MM 05-51-5 - [SDR ASMF201602010](https://openairdocs.org/sdr/ASMF201602010), Feb 10, 2016: DOOR. OUT OF ADJUST. CAPTAIN REPORTED THAT DURING CLIMB, THE FWD ENTRY DOOR LIGHT TURNED ON. ACFT WAS SENT TO THE HANGAR & MX PERFORMED FWD ENTRY DOOR ADJUSTMENT IAW AMM 52-11-00 TA - [SDR ASMF201510024](https://openairdocs.org/sdr/ASMF201510024), Sep 29, 2015: PITOT TUBE. BLOCKED. AIRCRAFT REJECTED TAKEOFF AT 80 KNOTS DUE TO EICAS MSG IAS DISAGREE & A DIFFERENCE OF 10 KNOTS BETWEEN SPEEDOMETERS BEING BIGGEST LT SIDE. PERFORMED FIM 31-62 T - [SDR ASMF201510019](https://openairdocs.org/sdr/ASMF201510019), Sep 14, 2015: WARNING SYSTEM. FALSE ACTIVATION. AIRCRAFT RETURNED TO PLATFORM DUE TO DURING BOTH ENGINE START, THE EEC ALT MODE LIGHTS TURNED ON. PERFORMED BITE TO BOTH EEC’S IAW AMM 73-21-00, CONTINUING THE - [SDR ASMF201507004](https://openairdocs.org/sdr/ASMF201507004), May 20, 2015: FLAP SYSTEM. MALFUNCTIONED. CAPTAIN REPORTED THAT DURING APPROACH, TE FLAP DISAGREE WITH FLAPS INDICATOR STAYING IN 2 UNITS & DECLARED AN EMERGENCY. ACCOMPLISHED WITH THE PROCEDURE TO EXTE - [SDR ASMF201503023](https://openairdocs.org/sdr/ASMF201503023), Mar 9, 2015: WARNING SYSTEM. FALSE ACTIVATION. AIRCRAFT PERFORMED AN UNSCHEDULED LANDING, DUE TO DURING CRUISE, THE FUEL QTY PRESENTED LOW FUEL QTY INDICATION. PERFORMED REVISION OF FUEL LEAKS & CABIN FUEL I - [SDR ASMF201503010](https://openairdocs.org/sdr/ASMF201503010), Feb 24, 2015: SHUTOFF VALVE. MALFUNCTIONED. DURING FUELING, A FUEL SPILLAGE IN THE LT TANK OCCURRED DUE TO THE SOV DID NOT CLOSE. THE PLATFORM WAS CLEANED BY FIREMEN & MX PERSONNEL CLEANED THE SELECTOR & - [SDR ASMF201503009](https://openairdocs.org/sdr/ASMF201503009), Jan 31, 2015: DRIVE UNIT. FAILED. AIRCRAFT RETURNED TO PLATFORM DUE TO DURING TAXING, THE EICAS MSG WXR FAIL WAS SHOWN. DURING MX REVISION, THE TRANSCEIVER & RADAR WERE DETECTED FAILED IAW AMM 3 - [SDR ASMF201408002](https://openairdocs.org/sdr/ASMF201408002), Jul 20, 2014: PITOT LINE. LOOSE. AIRCRAFT REJECTED TAKEOFF AT 100 KNOTS DUE TO EICAS MSG IAS DISAGREE. PERFORMED PITOT SYS REVISION BY CONDITION, DETECTING A LT ADM LINE LOOSEN, SO THE ADM LINE - [SDR ASMF2014061706013](https://openairdocs.org/sdr/ASMF2014061706013), May 7, 2014: WHEEL. DAMAGED. DURING TRANSIT CHECK, DETECTED THE FOUR MLG WHEELS WITH DAMAGES OUT OF LIMITS. THE WHEELS WERE REPLACED IAW AMM 32-45-11, ALL CORRECT. - [SDR ASMF201312004](https://openairdocs.org/sdr/ASMF201312004), Nov 24, 2013: CONTROL VALVE. FAILED. AIRCRAFT RETURNED TO PLATFORM, DURING TAXING THE RT PACK TEMP REACHED MORE THAN 60 CELSIUS DEGREES & BOTH PACKS REACHED LESS THAN 18 CELSIUS DEGREES IN PAX CABI - [SDR ASMF201310004](https://openairdocs.org/sdr/ASMF201310004), Sep 19, 2013: MECHANISM. OUT OF ADJUST. AIRCRAFT REJECTED TAKEOFF AT 70 KNOTS WITH 54,600 KG WEIGHT, DUE TO CONFIGURATION ALARM. DURING MX REVISION, THE SPEED BRAKE LEVER FAILED; THE HIGH ENERGY STOP - [SDR ASMF201306010](https://openairdocs.org/sdr/ASMF201306010), Jun 17, 2013: FIRE WARNING. FALSE ACTIVATION. ACFT RETURNED, DURING CLIMB THE FWD CARGO FIRE WARNING AND MASTER FIRE WARNING LIGHTS TURNED ON AND WITH FIRE WARNING AUDIBLE ALARM. DURING MX REVISION, THE DIS - [SDR ASMF20130531010](https://openairdocs.org/sdr/ASMF20130531010), May 12, 2013: ACTUATOR. DAMAGED. CAPTAIN REPORTED THAT DURING APPROACH WITH LANDING GEAR LEVER DOWN, THE LT MLG RED LIGHT TURNED ON; SO FLIGHT CREW ACCOMPLISHED THE QRH 14.10 PROCEDURE AND MANU - [SDR ASMF20130531009](https://openairdocs.org/sdr/ASMF20130531009), May 11, 2013: GASKET. LEAKING. DURING TRANSIT CHECK, A FUEL LEAK WAS DETECTED ON LT PANEL 533BB. MX PERSONNEL REPLACED THE PANEL AND CORRESPONDING GASKET IAW AMM 28-11-11- 020-005, TESTED COR - [SDR ASMF20130523005](https://openairdocs.org/sdr/ASMF20130523005), Apr 27, 2013: SENSOR. DAMAGED. CAPTAIN REPORTED THAT AFTER START ENGINES, THE L/E FLAPS TRANSIT LIGHT TURNED ON. DURING MX REVISION, THE SENSOR FLAP SKEW NR 6 WAS DETECTED DAMAGED; SO THE SEN - [SDR ASMF201303008](https://openairdocs.org/sdr/ASMF201303008), Jan 21, 2013: HEAT EXCHANGER. DIRTY. ACFT RETURNED TO PLATFORM DUE TO LT AIR CONDITIONING PACK UNABLE TO CONTROL TEMPERATURE AT MANUAL AND AUTO POSITIONS. MX PERSONNEL CLEANED THE LT HEAT EXCHANGER - [SDR ASMF201210012](https://openairdocs.org/sdr/ASMF201210012), Oct 6, 2012: SLEEVE. DAMAGED. DURING TRANSIT CHECK, FOUND A LIGHTNING STRIKE ON RT OUTER THRUST REVERSER TRANSLATION SLEEVE SKIN LOCATED AT 03:00 HRS POSITION. MX PERSONNEL PERFORMED A LIGHT - [SDR ASMF201210011](https://openairdocs.org/sdr/ASMF201210011), Oct 5, 2012: UNKNOWN. SMOKE. CAPTAIN REPORTED THAT DURING CRUISE AT 36,000 FEET, SMOKE WAS PERCEIVED IN PASSENGER CABIN. FLIGHT CREW ACCOMPLISHED THE QRH 8.8 PROCEDURE. MX PERFORMED SMOKE O - [SDR ASMF201208005](https://openairdocs.org/sdr/ASMF201208005), Aug 8, 2012: WHEEL. DAMAGED. DURING TRANSIT CHECK, DETECTED MAIN WHEEL NR 2 DEFLATED AND BRAKE ASSY NR 2 WITH BURN AND CRACK. PERFORM BRAKE SEIZURE CONDITIONAL INSPECTION AT NR 2 WHEEL AXLE - [SDR ASMF201206002](https://openairdocs.org/sdr/ASMF201206002), Jun 10, 2012: SKIN. DAMAGED. DURING TRANSIT CHECK, IT WAS DETECTED A LIGHTNING STRIKE IN THE FUSELAGE SKIN. MX PERFORMED A LIGHTNING STRIKE CONDITIONAL INSPECTION IAW MM 05-51-19, BURN MARK - [SDR ASMF201204002](https://openairdocs.org/sdr/ASMF201204002), Apr 6, 2012: BRAKE. LEAKING. DURING TRANSIT CHECK, MX PERSONNEL DETECTED A HYD LEAK AT MAIN BRAKES NUMBERS 1, 3 AND 4. ACFT WAS SENT TO THE HANGAR AND MX PERSONNEL REPLACED MAIN BRAKES NUMB - [SDR ASMF201203003](https://openairdocs.org/sdr/ASMF201203003), Mar 17, 2012: TIRE. DEFLATED. DURING TRANSIT CHECK, THE LT NOSE WHEEL WAS FLAT. REPLACED IAW MM 32-45-21. AS A PRECAUTIONARY ACTION, THE RT NOSE WHEEL WAS REPLACED IAW MM 32-45-21, ALL CORRE - [SDR ASMF201109009](https://openairdocs.org/sdr/ASMF201109009), Sep 23, 2011: GEARBOX. LACK OF LUBE. CAPTAIN REPORTED THAT DURING APPROACH, THE STABILIZER TRIM WITH HIGH VIBRATION AND SOUND. MX PERSONNEL WAS PERFORMED THE FIM 27-41-00 TASK 803 / 804 PROCEDURE, - [SDR ASMF201109002](https://openairdocs.org/sdr/ASMF201109002), Aug 27, 2011: BRAKE ASSY. DAMAGED. DURING TRANSIT CHECK AND PERFORMING A MLG WHEEL CHANGE, MX DETECTED BRAKE NR 2 WITH 11 LINKS BROKEN, ONE LINK LOOSED AND 4 RIVETS DAMAGED, SO THE BRAKE WAS REPL - [SDR ASMF201108008](https://openairdocs.org/sdr/ASMF201108008), Aug 19, 2011: FMC. MALFUNCTIONED. ACFT PERFORMED AN UNSCHEDULED LANDING, DURING CRUISE AN INDICATION OF INSUFFICIENT FUEL APPEARED ON THE FMC. MX PERFORMED BITE TO FMC AND FQIS IAW FIM 34-61 TAS - [SDR ASMF201106004](https://openairdocs.org/sdr/ASMF201106004), Jun 23, 2011: SWITCH. OUT OF ADJUST. ACFT REJECTED TAKEOFF AT 10 KNOTS AND A GROSS WEIGHT OF 58 500 KG DUE TO CONFIGURATION ALARM WAS ACTIVATED AND MASTER OVERHEAT PSEU LIGHT TURNED ON. DURING MX R ## 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 DCA18WA279](https://openairdocs.org/ntsb/DCA18WA279), Aug 20, 2018: Boeing 737 (N520AM), Guadalajara, Mexico, incident, no damage --- 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.