# Service difficulty reports: N611US, cancelled Mar 29, 2001 A list on [N611US, cancelled Mar 29, 2001](https://openairdocs.org/deregistered/N611US-2001-03-29.md). Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first. - [SDR 9902056311](https://openairdocs.org/sdr/9902056311.md): Hyd Line · leaking · Jun 11, 1999 · N611US · Boeing 747451 · Hydraulic System, Main > DURING CLIMB, THE NR 3 HYDRAULIC SYSTEM LOST FLUID. AIRCRAFT RETURNED TO DTW AND LANDED WITHOUT INCIDENT. RETORQUED HYDRAUALIC SUPPLY LINE IN THE NR 3 PYLON, OPERATIONAL CHECK GOOD. - [SDR 9806816611](https://openairdocs.org/sdr/9806816611.md): Actuator · malfunctioned · Apr 19, 1998 · N611US · Boeing 747251B · Leading Edge Slat Actuator > DURING CLIMB, THE NR 3 LEADING EDGE FLAP WOULD NOT RETRACT. AIRCRAFT RETURNED TO NRT AND LANDED WITHOUT INCIDENT. REPLACED THE NR 3 LEADING EDGE FLAP ACTUATOR, OPERATIONAL CHECK GOOD. - [SDR 9803166611](https://openairdocs.org/sdr/9803166611.md): Fuel Control · failed · Feb 18, 1998 · N611US · Boeing 747251B · Fuel Control/Turbine Engines > ON TAKEOFF ROLL, THE NR 4 ENGINE WOULD NOT PRODUCE TAKEOFF EPR WITH THE THRUST LEVER AT THE MECHANICAL STOP. THE TAKEOFF WAS ABORTED AND THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE REPLACED THE FUEL CONTROL AND THE FOLLOW-UP ENGINE RUN WAS NORMAL. - [SDR 9717116611](https://openairdocs.org/sdr/9717116611.md): Gear Light · illuminated · Sep 7, 1997 · N611US · Boeing 747251B · Landing Gear Position and Warning > DURING CLIMB, THE RED LANDING GEAR LIGHT ILLUMINATED. RECYCLED THE LANDING GEAR AND THE LIGHT EXTINGUISHED. AIRCRAFT CONTINUED TO DESTINATION AND LANDED WITHOUT INCIDENT. VISUALLY INSPECTED LANDING GEAR, ALL CHECKED NORMAL. - [SDR 9715166611](https://openairdocs.org/sdr/9715166611.md): Wire Harness · crossed · Aug 5, 1997 · N611US · Boeing 747251B · Landing Gear System Wiring > AIRCRAFT EXPERIENCED A TIRE FAILURE DURING LANDING. AIRCRAFT COMPLETED LANDING WITHOUT FURTHER INCIDENT. REPLACED THE NR 3 AND NR 4 TIRE ASSEMBLIES AND REPOSITIONED WIRE HARNESS FOR THE NR 3 AND NR 4 ANTI-SKID TRANSDUCERS. OPERATIONAL CHECK GOOD. - [SDR 9714806611](https://openairdocs.org/sdr/9714806611.md): Tire · failed · Aug 1, 1997 · N611US · Boeing 747251B · Tire > AIRCRAFT EXPERIENCED A TIRE FAILURE DURING LANDING. AIRCRAFT COMPLETED LANDING WITHOUT INCIDENT. REPLACED THE NR 3 AND NR 4 TIRE ASSEMBLIES, ALL OPERATIONAL CHECKS GOOD. - [SDR 9714546611](https://openairdocs.org/sdr/9714546611.md): Gearbox · leaking · Jul 25, 1997 · N611US · Boeing 747251B · Turbine Engine Accessory Drive > WHILE IN CRUISE, THE NR 4 ENGINE OIL QUANTITY DROPPED TO ZERO. OIL PRESSURE FELL TO THE YELLOW BAND AND THE ENGINE POWER WAS REDUCED TO IDLE FOR TWO MINUTES. THE ENGINE WAS THEN SHUT DOWN. MAINTENANCE FOUND A COVER ON THE ENGINE ANGLE GEARBOX LOOSE. THIS W - [SDR 9710236611](https://openairdocs.org/sdr/9710236611.md): Tire · failed · May 25, 1997 · N611US · Boeing 747251B · Tire > DURING LANDING, THE NR 3 TIRE FAILED. AIRCRAFT LANDED WITHOUT FURTHER INCIDENT. REPLACED THE NR 3 AND NR 4 TIRE ASSEMBLIES, NBR 3 ANTI-SKID VALVE, AND ANTI-SKID CONTROL UNIT, OPERATIONAL CHECK GOOD. - [SDR 9709986611](https://openairdocs.org/sdr/9709986611.md): Bulkhead · cracked · May 18, 1997 · N611US · Boeing 747251B · Nacelle/Pylon, Bulkhead/Firewall > DURING TRANSITION CHECK, FOUND CRACK IN NR 4 PYLON REAR ENGINE MOUNT BULKHEAD STRAP NACELLE STA 223. REPAIRED PER EA 66-150141. - [SDR 9627726611](https://openairdocs.org/sdr/9627726611.md): Web · corroded · Oct 28, 1996 · N611US · Boeing 747251B · Fuselage Miscellaneous Structure > DURING CHECK, FOUND CORROSION ON THE MAIN DECK PRESSURE WEB INTERIOR SURFACE. REPAIRED PER EA 66-120205. - [SDR 9623776611](https://openairdocs.org/sdr/9623776611.md): Frame · cracked · Oct 26, 1996 · N611US · Boeing 747251B · Fuselage Main, Frame > DURING ARMAR VISIT, FOUND CRACKS IN THE BS 400 FRAME INNER CHORD AND WEB AT STR 26R. REPAIRED CHORD AND WEB (P/N 65B07936-328) PER EA 66-110297. - [SDR 9627716611](https://openairdocs.org/sdr/9627716611.md): Skin · corroded · Oct 13, 1996 · N611US · Boeing 747251B · Fuselage Main, Plate/Skin > DURING CHECK, FOUND CORROSION ON SKIN INTERNAL DOUBLER. REPLACED DOUBLER PER EA 66-120221. - [SDR 9617336611](https://openairdocs.org/sdr/9617336611.md): Logic Card · defective · Aug 11, 1996 · N611US · Boeing 747251B · Landing Gear Position and Warning > DURING CLIMB, THE RED NOSE LANDING GEAR LIGHT ILLUMINATED AFTER LANDING GEAR RETRACTION. RECYCLED LANDING GEAR AND LIGHT EXTINGUISHED. AIRCRAFT CONTINUED TO SEA AND LANDED WITHOUT INCIDENT. RESEATED GEAR CARDS IN HOLDERS AND GREASED NOSE LANDING GEAR, OPERA - [SDR 9604746611](https://openairdocs.org/sdr/9604746611.md): Power Supply · inoperative · Feb 23, 1996 · N611US · Boeing 747251B · Emergency Lighting > DURING LINE CHECK, FOUND 'A' ZONE EMERGENCY FLOOR PATH LIGHTS INOPERATIVE. REPLACED POWER SUPPLY AND BATTERIES. - [SDR 9516426611](https://openairdocs.org/sdr/9516426611.md): Longeron · cracked · Oct 6, 1995 · N611US · Boeing 747251B · Fuselage Main, Longeron/Stringer > DURING PERIODIC CHECK, FOUND TWO CRACKS, 1.1 AND 0.5 INCH IN STR 9R BS 1430, 1458 RESPECTIVELY. REPAIRED STRINGER (P/N 65B07229-8), PER EA 66-99128, -99157. - [SDR 9516416611](https://openairdocs.org/sdr/9516416611.md): Longeron · cracked · Oct 6, 1995 · N611US · Boeing 747251B · Fuselage Main, Longeron/Stringer > DURING PERIODIC CHECK, FOUND TWO CRACKS, 0.75 AND 0.90 INCH STR 8R BS 1307, 1331 RESPECTIVELY. REPAIRED STRINGER (P/N 65B07229-34), PER EA 66-99128. - [SDR 9516406611](https://openairdocs.org/sdr/9516406611.md): Longeron · cracked · Oct 6, 1995 · N611US · Boeing 747251B · Fuselage Main, Longeron/Stringer > DURING PERIODIC CHECK, FOUND A CRACK IN STR 8R, BS 1466. REPAIRED STRINGER (P/N 65B07229-34), PER EA 66-99123. - [SDR 9516396611](https://openairdocs.org/sdr/9516396611.md): Floorbeam · cracked · Oct 5, 1995 · N611US · Boeing 747251B · Fuselage Main, Floor Beam > DURING PERIODIC CHECK, FOUND A ONE INCH CRACK IN THE UPPER DECK FLOORBEAM WEB, FS 460 RBL 88. REPAIRED WEB (P/N 65B10933-502), PER EA 66-99126. - [SDR 9515246611](https://openairdocs.org/sdr/9515246611.md): Fittings · corroded · Oct 3, 1995 · N611US · Boeing 747251B · Fuselage Miscellaneous Structure > DURING PERIODIC CHECK, FOUND CORROSION IN THE LBL 120 TO 125 OVERWING LONGERON AT THE FORWARD AND AFT UPLOCK SUPPORT CASTINGS, BS 1301 AND 1309. REPLACED FITTINGS (P/N 65B01332-7, 65B01331-15), PER SRM 53-10-01 FIG 1. - [SDR 9508066611](https://openairdocs.org/sdr/9508066611.md): Transmission · failed · May 16, 1995 · N611US · Boeing 747251B · Trailing Edge Flap Control System > DURING CLIMBOUT, THE OUTBOARD TRAILING EDGE FLAPS WOULD NOT RETRACT PAST 10 DEGREES IN NORMAL OR ALTERNATE POSITION. CREW FOLLOWED COCKPIT OPERATING MANUAL, DUMPED 58,000 LBS OF FUEL, AND MADE AN UNEVENTFUL LANDING IN NRT. MAINTENANCE REPLACED SCREW ASSEMBLY - [SDR 9507906611](https://openairdocs.org/sdr/9507906611.md): Dnlock Actuator · malfunctioned · May 12, 1995 · N611US · Boeing 747251B · Landing Gear Retraction/Extension System > DURING APPROACH FOR LANDING AND AFTER LOWERING THE LANDING GEAR, EXPERIENCED RAPID LOSS OF HYDRAULIC FLUID ON NO.1 SYSTEM. HYDRAULIC PRESSURE DECREASED TO ZERO AND BOTH LOW PRESSURE AND QUANTITY LIGHTS ILLUMINATED. CREW FOLLOWED COCKPIT OPERATING MANUAL PROCED - [SDR 9506596611](https://openairdocs.org/sdr/9506596611.md): Oil Filter · dirty · Mar 6, 1995 · N611US · Boeing 747251B · Turbine Engine Oil System > DURING CRUISE, NR 2 ENGINE OIL FILTER CLOG LIGHT ILLUMINATED. THE ENGINE WAS SHUTDOWN AND THE AIRCRAFT DIVERTED TO ANCWHERE AN UNEVENTFUL THREE ENGINE LANDING WAS MADE. NO FUELWAS DUMPED. DEBRIS WAS FOUND IN THE MAIN OIL FILTER. THE FILTER WAS REPLACED AND - [SDR 9503596611](https://openairdocs.org/sdr/9503596611.md): Oil Filter · clogged · Mar 6, 1995 · N611US · Boeing 747251B · Turbine Engine Oil System > DURING CRUISE NR 2 ENGINE OIL FILTER CLOG LIGHT ILLUMINATED. THE ENGINE WAS SHUTDOWN AND THE AIRCRAFT DIVERTED TO ANC WHERE AN UNEVENTFUL THREE ENGINE LANDING WAS MADE. NO FUEL WAS DUMPED. DEBRIS WAS FOUND IN THE MAIN OIL FILTER. THE FILTER WAS REPLACED AN ## 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 = 'N611US' AND deregistration_id = 'N611US-2001-03-29' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/deregistered/N611US-2001-03-29/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.