# Service difficulty reports: N672US, cancelled Feb 6, 2019 A list on [N672US, cancelled Feb 6, 2019](https://openairdocs.org/deregistered/N672US-2019-02-06.md). Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first. - [SDR DALA2014080304293](https://openairdocs.org/sdr/DALA2014080304293.md): Fuse · failed · Jul 31, 2014 · N672US · Boeing 747451 · Emergency Lighting > EMERGENCY LIGHT RT OVERWING IS OUT. REPLACED POWER SUPPLY (M7920) FUSE. - [SDR DALA2014073104271](https://openairdocs.org/sdr/DALA2014073104271.md): Light · inoperative · Jul 30, 2014 · N672US · Boeing 747451 · Emergency Lighting > EMERGENCY LIGHT NEAR L4 DOOR F/A JUMP SEAT WOULD NOT TURN ON WHEN EMERGENCY LIGHT CHECKED. REPLACED LIGHT ASSY. - [SDR DALA14016356312](https://openairdocs.org/sdr/DALA14016356312.md): Channel · cracked · Mar 10, 2014 · N672US · Boeing 747451 · Fuselage Miscellaneous Structure > A CRACK WAS FOUND IN THE FWD CHANNEL ON BS 1120 ON THE RT SIDE OF AIRPLANE. CHANNEL REPAIRED IAW SRM 53-40-30, REPAIR 2. HFEC INSPECTED THE CHANNEL CUT OUT EDGE AND FASTENER HOLES, FOUND NO CRACK IAW NDTM PART 6, 51-00-00 FIG 16 AND FIG 23, REPAIR ANGLES - [SDR DALA13052566312](https://openairdocs.org/sdr/DALA13052566312.md): Power Supply · inoperative · Oct 14, 2013 · N672US · Boeing 747451 · Emergency Lighting > RT EXTERIOR EMERGENCY LIGHT AFT OF WING INOPERATIVE. TROUBLESHOT IAW WDM 33-51-42 AND REPLACED POWER SUPPLY AND BATTERY IAW MM 33-51-04, OPS CHECKED GOOD. OK FOR SERVICE. - [SDR DALA13037466312](https://openairdocs.org/sdr/DALA13037466312.md): Fuse · inoperative · Aug 3, 2013 · N672US · Boeing 747451 · Emergency Lighting > DURING INSPECTION, FOUND EMERGENCY LIGHTS AT LT OVERWING FWD INOPERATIVE. REPLACED FUSE IN POWER SUPPLY. - [SDR DALA13037456312](https://openairdocs.org/sdr/DALA13037456312.md): Power Supply · inoperative · Aug 3, 2013 · N672US · Boeing 747451 · Emergency Lighting > DURING INSPECTION, EMERGENCY LIGHTS AT RT OVERWING FORWARD AND AFT WERE INOPERATIVE. REPLACED POWER SUPPLY FOR RT FWD AND RELAMPED RT AFT LIGHTS. - [SDR DALA12005806312](https://openairdocs.org/sdr/DALA12005806312.md): Flap Track · damaged · Aug 19, 2012 · N672US · Boeing 747451 · Trailing Edge Flaps > DURING INSPECTION, FOUND LEFT OUTBOARD TRAILING EDGE FLAP NR 2 FLAP TRACK OUTBOARD FORWARD UPPER FLANGE SURFACE CORROSION. MAINTENANCE REMOVED AND REPLACED NR 2 FLAP TRACK AS PER B747-400 AMM 27-51-27. - [SDR DALA12002336312](https://openairdocs.org/sdr/DALA12002336312.md): Lamp · inoperative · Jun 27, 2012 · N672US · Boeing 747451 · Emergency Lighting > DURING INSPECTION FOUND EMERGENCY LIGHTS OUT AT 74, 78, 79. MAINTENANCE RELAMPED, OPS CHECKED OK. - [SDR DALA12001756312](https://openairdocs.org/sdr/DALA12001756312.md): Power Supply · inoperative · Jun 17, 2012 · N672US · Boeing 747451 · Emergency Lighting > DURING INSPECTION FOUND EXTERIOR EMERGENCY LIGHT INOPERATIVE AT RIGHT FORWARD OVERWING. MAINTENANCE REPLACED POWER SUPPLY BPS7-3 AND DEFECTIVE FUSE ON M7919 POWER SUPPLY. PERFORMED EMERGENCY LIGHTS CHECK, OK AS PER B747-400 AMM NR 33-51. - [SDR DALA12000436312](https://openairdocs.org/sdr/DALA12000436312.md): Connector · dirty · May 26, 2012 · N672US · Boeing 747451 · Light System Wiring > DURING INSPECTION, FOUND SEVERAL FLOOR PROXIMITY EMERGENCY LIGHTS INOPERATIVE. MAINTENANCE CLEANED CONNECTIONS AND REPLACED LAMPS. - [SDR DALA1233376312](https://openairdocs.org/sdr/DALA1233376312.md): Fuse · inoperative · May 20, 2012 · N672US · Boeing 747451 · Emergency Lighting > DURING INSPECTION FOUND RIGHT OVERWING EMERGENCY LIGHT AT MOST FORWARD WON'T TURN ON. MAINTENANCE REPLACED FUSE ON M7919 POWER SUPPLY AND PERFORMED OPERATIONAL CHECKED OK AS PER AMM 33-51. - [SDR DALA1226226312](https://openairdocs.org/sdr/DALA1226226312.md): Connector · loose · Apr 22, 2012 · N672US · Boeing 747451 · Light System Wiring > DURING INSPECTION FOUND EMERGENCY LIGHTS FROM ROW 51HJK THROUGH 63HJK ARE INOPERATIVE. MAINTENANCE SECURED LOOSE CONNECTION AND TEST OK PER B747 AMM 33-51-12/201. - [SDR DALA1226206312](https://openairdocs.org/sdr/DALA1226206312.md): Connector · loose · Apr 22, 2012 · N672US · Boeing 747451 · Light System Wiring > DURING INSPECTION, FOUND EMERGENCY LIGHTS FROM DOOR 2LT TO ROW 22ABC ARE INOPERATIVE. MAINTENANCE SECURED LOOSE CONNECTION AND TEST OK PER B747 AMM 33-51-12/201. - [SDR DALA1214956312](https://openairdocs.org/sdr/DALA1214956312.md): Connector · loose · Mar 9, 2012 · N672US · Boeing 747451 · Light System Wiring > DURING A MAINTENANCE VISIT, THE EMERGENCY ESCAPE PATH LIGHT BY LAVATORY DOOR 4L WAS FOUND TO BE INOPERATIVE. MAINTENANCE FOUND THE WIRE CONNECTOR LOOSE BY SEAT 43C AND RECONNECTED IT. SYSTEM OPERATION WAS NORMAL AFTER THE CONNECTOR WAS RECONNECTED. - [SDR DALA1213646312](https://openairdocs.org/sdr/DALA1213646312.md): Fuse · open · Mar 6, 2012 · N672US · Boeing 747451 · Emergency Lighting > DURING A MAINTENANCE VISIT, THE OVERWING EMERGENCY LIGHT ON THE RIGHT SIDE WAS FOUND TO BE INOPERATIVE. MAINTENANCE FOUND THE POWER SUPPLY FUSE OPEN AND REPLACED IT. SYSTEM OPERATION WAS NORMAL AFTER THE FUSE WAS REPLACED. - [SDR DALA1204086312](https://openairdocs.org/sdr/DALA1204086312.md): Power Supply · inoperative · Jan 25, 2012 · N672US · Boeing 747451 · Emergency Lighting > DURING A MAINTENANCE VISIT, THE FORWARD OVERWING EMERGENCY LIGHT ON THE LEFT SIDE WAS FOUND TO BE INOPERATIVE. MAINTENANCE FOUND THE POWER SUPPLY FUSE AT 3L DOOR DEFECTIVE. MAINTENANCE REPLACED THE POWER SUPPLY. SYSTEM OPERATION WAS NORMAL AFTER THE POWER S - [SDR DALA1160296312](https://openairdocs.org/sdr/DALA1160296312.md): Power Supply · inoperative · Oct 26, 2011 · N672US · Boeing 747451 · Emergency Lighting > DURING A MAINTENANCE VISIT, THE FORWARD EXTERIOR EMERGENCY LIGHT ON THE LEFT SIDE WAS FOUND TO BE INOPERATIVE. MAINTENANCE REPLACED THE POWER SUPPLY. SYSTEM OPERATION WAS NORMAL AFTER THE POWER SUPPLY WAS REPLACED. - [SDR DALA1154426312](https://openairdocs.org/sdr/DALA1154426312.md): Light · inoperative · Sep 18, 2011 · N672US · Boeing 747451 · Emergency Lighting > DURING A MAINTENANCE VISIT, THE EMERGENCY SLIDE LIGHT AT DOOR 4R WAS FOUND TO BE INOPERATIVE. MAINTENANCE REPLACED THE DOOR SLIDE LIGHT PER B747 AMM 33-51-06. SYSTEM OPERATION WAS NORMAL AFTER THE SLIDE LIGHT WAS REPLACED. - [SDR DALA1104406312](https://openairdocs.org/sdr/DALA1104406312.md): Power Supply · inoperative · Jan 20, 2011 · N672US · Boeing 747451 · Emergency Lighting > DURING A LINE CHECK, MX FOUND THE RT 3RD & 4TH OVERWING EMERGENCY LIGHTS INOPERATIVE. MX REPLACED THE POWER SUPPLY M7920 AND BATTERY. OPS CHECK WAS GOOD. - [SDR DALA1104396312](https://openairdocs.org/sdr/DALA1104396312.md): Battery Pack · inoperative · Jan 20, 2011 · N672US · Boeing 747451 · Emergency Lighting > DURING A LINE CHECK, MX FOUND THE RT FWD EXTERIOR EMERGENCY LIGHT INOPERATIVE. MX REPLACED THE POWER SUPPLY M7919 AND BATTERY. OPS CHECK WAS GOOD. - [SDR DALA1030036312](https://openairdocs.org/sdr/DALA1030036312.md): Fuse · blown · Oct 29, 2010 · N672US · Boeing 747451 · Emergency Lighting > DURING A LINE CHECK, MAINTENANCE FOUND THE RT MOST FWD OVERWING EMERGENCY LIGHT INOPERATIVE. MAINTENANCE REPLACED A POWER SUPPLY FUSE. OPERATIONAL CHECK WAS GOOD. (2010-00830) - [SDR DALA1022046312](https://openairdocs.org/sdr/DALA1022046312.md): Indicator · odor · Sep 9, 2010 · N672US · Boeing 747451 · Weather Radar System > DURING FLIGHT, THE CAPT'S RADAR DISPLAY EMITTED AN ELECTRICAL SMOKE ODOR AND BECAME ERRATIC. RADAR DISPLAY WAS SHUTOFF AND ODOR DISSIPATED. MX CONFIRMED THE WX RADAR INDICATOR AS THE SOURCE OF THE ODOR AND REPLACED IT. OPS TEST WAS GOOD. - [SDR DALA1020876312](https://openairdocs.org/sdr/DALA1020876312.md): Connector · loose · Sep 1, 2010 · N672US · Boeing 747451 · Light System Wiring > DURING LINE CHECK, MX FOUND THE B ZONE LT EMERGENCY PATH LIGHTS INOPERATIVE. MX SECURED A LOOSE CONNECTOR. OPS CHECK WAS GOOD. - [SDR DALA1018326312](https://openairdocs.org/sdr/DALA1018326312.md): Floor Support · corroded · Aug 5, 2010 · N672US · Boeing 747451 · Fuselage Miscellaneous Structure > DURING M-CHECK FOUND CORROSION ON UPPER DECK FLOOR SUPPORT AT BS 980 RBL 20. REPAIRED IAW SRM 53-00-52. - [SDR DALA1015136312](https://openairdocs.org/sdr/DALA1015136312.md): Connector · damaged · Jun 30, 2010 · N672US · Boeing 747451 · Light System Wiring > DURING LINE CHECK, MAINTENANCE FOUND EMERGENCY PATH LIGHTS AT ROW 51HJK THROUGH 65HJK INOPERATIVE. MAINTENANCE REPAIRED CONNECTION AT THE LIGHT ASSEMBLY. OPERATIONAL CHECK WAS GOOD. - [SDR DALA101030](https://openairdocs.org/sdr/DALA101030.md): Wire · disconnected · May 19, 2010 · N672US · Boeing 747451 · Light System Wiring > DURING LAYOVER CHECK, MX FOUND EMERGENCY PATH LIGHTS ROW 51-66 RT SIDE INOPERATIVE. MX RECONNECTED THE LIGHT WIRING AT ROW 66. OPS CHECK WAS GOOD. - [SDR DALA1010146312](https://openairdocs.org/sdr/DALA1010146312.md): Light · inoperative · May 17, 2010 · N672US · Boeing 747451 · Emergency Lighting > DURING LAYOVER CHECK, MX FOUND EMERGENCY PATH LIGHTS AT DOOR 4L F/A AREA INOPERATIVE. MX REPLACED THE PATH LIGHT ASSY. OPS CHECK WAS GOOD. - [SDR DALA102736312](https://openairdocs.org/sdr/DALA102736312.md): Light · inoperative · Feb 4, 2010 · N672US · Boeing 747451 · Emergency Lighting > DURING LAYOVER CHECK, MX FOUND THE EMERGENCY SLIDE LIGHT ON PAX DOOR 2L INOPERATIVE. MX REPLACED THE EMERGENCY LIGHT ASSY. OPS CHECK WAS GOOD. - [SDR DALA100036312](https://openairdocs.org/sdr/DALA100036312.md): Battery Pack · inoperative · Jan 2, 2010 · N672US · Boeing 747451 · Emergency Exits > DURING LINE CHECK, RT UPPER DECK DOOR BATTERY TEST FAILED. REPLACED BATTERY PACK IAW AMM 52-23-14. OPS CHECKS GOOD. - [SDR NWAA093266312](https://openairdocs.org/sdr/NWAA093266312.md): Power Supply · defective · Sep 20, 2009 · N672US · Boeing 747451 · Emergency Lighting > DURING AN OVERNIGHT LINE CHECK THE EMERGENCY ESCAPE PATH LIGHTS AT ROWS 77 THROUGH 79 IN THE UPPER DECK WERE FOUND TO BE INOPERATIVE. MAINTENANCE FOUND POWER SUPPLY M5933 TO BE DEFECTIVE AND REPLACED IT. SYSTEM OPERATION WAS NORMAL AFTER THE POWER SUPPLY REP - [SDR NWAA09836312](https://openairdocs.org/sdr/NWAA09836312.md): Connector · damaged · Mar 20, 2009 · N672US · Boeing 747451 · Light System Wiring > MX FOUND THE EMERGENCY LIGHTS FOR THE LT OVERWING EXIT INOPERATIVE DURING AN OVERNIGHT LINE CHECK. MX FOUND THE CONNECTOR FOR THE ASSOC PWR SUPPLY TO BE DAMAGED AND REPAIRED THE CONNECTOR PLUG. SYS OPERATION WAS NORMAL AFTER THE CONNECTOR PLUG WAS REPAIRED. - [SDR NWAA09746302](https://openairdocs.org/sdr/NWAA09746302.md): Power Supply · inoperative · Mar 9, 2009 · N672US · Boeing 747451 · Emergency Lighting > DURING OVERNIGHT CHECK, FOUND LT SIDE OVERWING EMERGENCY LIGHTS INOPERATIVE. MX REMOVED AND REPLACED POWER SUPPLY. OPS CHECKED GOOD, AND ACFT WAS RETURNED TO SERVICE. (K) - [SDR NWAA080246312](https://openairdocs.org/sdr/NWAA080246312.md): Web · damaged · Jan 18, 2008 · N672US · Boeing 747451 · Fuselage Miscellaneous Structure > DURING "L" CHECK AND ACCOMPLISHMENT OF CREW REST MODIFICATION FOUND FLOOR WEB AT BS 2300 RBL 60-RBL 80 WITH SHORT EDGE MARGIN. REPAIRED PER EA 63-211481. - [SDR NWAA072636312](https://openairdocs.org/sdr/NWAA072636312.md): Battery Pack · inoperative · Jul 25, 2007 · N672US · Boeing 747451 · Emergency Lighting > DURING OVERNIGHT LINE CHECK, CEILING EMERGENCY LIGHT IN AFT CREW BUNK WAS INOP. MAINTENANCE REMOVED AND REPLACCED POWER PACK. OPERATIONAL CHECKED GOOD AND AIRCRAFT RETURNED TO SERVICE. - [SDR 0700026312](https://openairdocs.org/sdr/0700026312.md): Line · leaking · Jan 6, 2007 · N672US · Boeing 747451 · Hydraulic System, Main > DURING CRUISE, HYDRAULIC QUANTITY WENT TO ZERO. FOLLOWED COM PROCEDURE FOR LOSS OF HYDRAULIC SYSTEM. FLIGHT CONTINUED ON TO DTW. YELLOW EMERGENCY WAS DECLARED UPON ARRIVAL IN DTW. AIRCRAFT LANDING WAS UNEVENTFUL. MAINTENANCE REMOVED AND REPLACED RETURN TU - [SDR 0700016312](https://openairdocs.org/sdr/0700016312.md): Light · inoperative · Jan 6, 2007 · N672US · Boeing 747451 · Emergency Lighting > DURING OVERNIGHT CHECK, CABIN EMERGENCY FLOOR LIGHTS INOP LT SIDE ROWS 51-66. MAINTENANCE REMOVED AND REPLACED EMERGENCY LIGHTS. OPERATIONAL CHECKED GOOD, AIRCRAFT RETURNED TO SERVICE. - [SDR 0402086312](https://openairdocs.org/sdr/0402086312.md): Pseu · failed · Nov 25, 2004 · N672US · Boeing 747451 · Landing Gear Position and Warning > DURING CLIMB, RECEIVED A GEAR DISAGREE AND GEAR DOOR EICAS MESSAGE ACCOMPANIED WITH VIBRATION AND NOISE. AIRCRAFT RETURNED TO DTW AND DUMPED 200,000 LBS OF FUEL AND LANDED WITHOUT INCIDENT. REPLACED THE PSEU. OPERATIONAL CHECK GOOD. - [SDR 0401426312](https://openairdocs.org/sdr/0401426312.md): Oven · overheated · Aug 25, 2004 · N672US · Boeing 747451 · Buffet/Galleys > DURING FLIGHT, SMOKE EMITTED FROM THE 2-7 OVEN AS IT OPERATED HOTTER THAN THE MEDIUM SETTING CAUSING THE SMOKE ALARM TO ACTIVATE. THE OVEN WAS TURNED OFF AND THE CIRCUIT BREAKERS PULLED AND THE SMOKE DISSIPATED SILENCING THE SMOKE ALARM. AIRCRAFT CONTINUED TO - [SDR 0301126312](https://openairdocs.org/sdr/0301126312.md): Wire · broken · Jun 16, 2003 · N672US · Boeing 747451 · Light System Wiring > DURING LINE CHECK FOUND ZONE B-FLOOR PATH EMERGENCY LIGHTS INOPERATIVE. REPAIRED BROKEN WIRE. OPERATIONAL CHECK GOOD. - [SDR 0300976312](https://openairdocs.org/sdr/0300976312.md): Oven · smoke · May 17, 2003 · N672US · Boeing 747451 · Buffet/Galleys > DURING FLIGHT SMOKE EMITTED FROM THE 3-28 OVEN IN THE NR 4 GALLEY. AIRCRAFT CONTINUED TO DESTINATION AND LANDED WITHOUT INCIDENT. REPLACED THE OVEN AND CONTROLLER. OPERATIONAL CHECK GOOD. - [SDR 0300676312](https://openairdocs.org/sdr/0300676312.md): Controller · inoperative · Apr 2, 2003 · N672US · Boeing 747451 · Buffet/Galleys > DURING FLIGHT SMOKE EMITTED FROM THE NR1 OVEN IN THE UPPER DECK. PULLED GALLEY CIRCUIT BREAKER, AIRCRAFT CONTINUED TO DESTINATION AND LANDED WITHOUT INCIDENT. REPLACED THE OVEN CONTROLLER, OPERATIONAL CHECK GOOD. - [SDR 0300466312](https://openairdocs.org/sdr/0300466312.md): Pseu · failed · Mar 11, 2003 · N672US · Boeing 747451 · Landing Gear Position and Warning > DURING CLIMB RECEIVED A NOSE "GEAR DISAGREE" AND "GEAR DOOR" EICAS MESSAGE ACCOMPANIED WITH AIRFRAME VIBRATION DURING LANDING GEAR RETRACTION. AIRCRAFT RETURNED TO DTW AND LANDED WITHOUT INCIDENT. REPLACED THE PSEU AND BOTH NOSE WHEEL ASSEMBLIES. OPERATIONAL C - [SDR 0003416612](https://openairdocs.org/sdr/0003416612.md): Slide · failed · Sep 21, 2000 · N672US · Boeing 747251B · Escape Slide > DURING SLIDE SHOP TEST AT OPERATING PRESSURE, A MULTIPLE SEAM FAILURE OF THE LOWER AIR HOLDING SILL TUBE OCCURRED AT THE GIRT END. SLIDE WILL BE OVERHAULED AND RECEIVE A NEW INFLATABLE. - [SDR 0003346612](https://openairdocs.org/sdr/0003346612.md): Power Supply · inoperative · Sep 12, 2000 · N672US · Boeing 747251B · Emergency Lighting > DURING OVERNIGHT LINE CHECK, FOUND ''D'' ZONE FLOOR MOUNTED EMERGENCY LIGHTS INOPERATIVE. MAINTENANCE REPLACED THE POWER SUPPLY. OPERATIONAL CHECK OK. ## 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 = 'N672US' AND deregistration_id = 'N672US-2019-02-06' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/deregistered/N672US-2019-02-06/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, except the copies of manufacturers’ service documents, which belong to their rights holders.