# Service difficulty reports: N956N, cancelled Feb 6, 2013 A list on [N956N, cancelled Feb 6, 2013](https://openairdocs.org/deregistered/N956N-2013-02-06.md). Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first. - [SDR 0400109906](https://openairdocs.org/sdr/0400109906.md): Channel · cracked · Jan 5, 2004 · N956N · Doug DC931 · Fuselage Main, Bulkhead > DURING L-CHECK FOUND CRACK IN AFT PRESSURE BULKHEAD CHANNEL. REPAIRED IAW EA 99-197419. - [SDR 0201659906](https://openairdocs.org/sdr/0201659906.md): Seal · out of position · May 22, 2002 · N956N · Doug DC931 · Entrance Stairs > DURING CLIMBOUT, THE CABIN PRESSURE WARNING LIGHT ILLUMINATED. CABIN PRESSURE CLIMBED THROUGH 10,000 FEET TO 12,500 FEET WHEN CREW ACCOMPLISHED AN EMERGENCY DESCENT TO 10,000 FEET AND DIVERTED TO MKE. NO MENTION OF COM OR OF MANUAL PRESSURE CONTROL. LANDING - [SDR 0001839906](https://openairdocs.org/sdr/0001839906.md): Controller · failed · May 17, 2000 · N956N · Doug DC931 · Cabin Pressure Controller > BOTH AUTO AND MANUAL PRESSURIZATION FAILED TO OPERATE NORMALLY AT ALTITUDE. CABIN CLIMBED TO 15,000 FEET AND MASKS DEPLOYED. AN EMERGENCY DESCENT WAS INITIATED AND MADE AN UNEVENTFUL LANDING. MAINTENANCE REPLACED THE CABIN PRESSURE CONTROLLER, REPACKED AIRS - [SDR 0000779906](https://openairdocs.org/sdr/0000779906.md): Wire · broken · Apr 2, 2000 · N956N · Doug DC931 · Light System Wiring > DURING LINE MAINTENANCE INSPECTION, FOUND TAIL CONE CATWALK AND INTERIOR TAIL CONE RELEASE HANDLE LIGHTS ILLUMINATED WITH EMERGENCY LIGHT SWITCH OFF. REPAIRED BROKEN BROWN WIRE NEAR POWER SUPPLY, OPERATIONAL CHECK NORMAL. - [SDR 0000229906](https://openairdocs.org/sdr/0000229906.md): Wire · failed · Jan 23, 2000 · N956N · Doug DC931 · Light System Wiring > EMERGENCY LIGHT ARM AND CHARGE CIRCUIT BREAKER POPPED. MAINTENANCE REPAIRED SHORTED WIRING AT CLAMP IN TAIL COMPARTMENT. OPERATIONAL CHECK NORMAL. - [SDR 9905459906](https://openairdocs.org/sdr/9905459906.md): Ecu · failed · Dec 28, 1999 · N956N · Doug DC931 · Fire Detection > DURING TAXI INTO IAD, FORWARD CARGO SMOKE DETECTOR LIGHT ILLUMINATED. FLIGHT CREW ACTIVATED FORWARD CARGO BAY FIRE BOTTLE AND DECLARED AN EMERGENCY. AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND NO EVIDENCE OF FIRE OR SMOKE DAMAGE. REPLACED NR 1 CA - [SDR 9900559906](https://openairdocs.org/sdr/9900559906.md): Batteries · discharged · Feb 12, 1999 · N956N · Doug DC931 · Emergency Lighting > DURING LINE MAINTENANCE INSPECTION, FOUND TAIL COMPARTMENT EMERGENCY LIGHTS INOPERATIVE. REPLACED BATTERIES. OPERATIONAL CHECK NORMAL. - [SDR 9810389906](https://openairdocs.org/sdr/9810389906.md): Sensor · broken · Nov 19, 1998 · N956N · Doug DC931 · Landing Gear Position and Warning > DURING APPROACH INTO MEM, NOSE LANDING GEAR UNSAFE LIGHT REMAINED ON AFTER GEAR EXTENSION. CREW DECLARED AN EMERGENCY AND EXECUTED GO-AROUND PROCEDURES. AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND NOSE GEAR DOWNLOCK PROXIMITY SENSOR BROKEN. REPLACE - [SDR 9808159906](https://openairdocs.org/sdr/9808159906.md): Battery Pack · discharged · May 2, 1998 · N956N · Doug DC931 · Emergency Lighting > FLIGHT ATTENDANT REPORTED MAIN CABIN DOOR UPPER FLASHLIGHT NOT BLINKING. REPLACED BATTERY PACK, OPERATIONAL CHECK NORMAL. - [SDR 9807139906](https://openairdocs.org/sdr/9807139906.md): Bracket · broken · Apr 21, 1998 · N956N · Doug DC931 · Leading Edge Slat Control System > DURING APPROACH INTO DTW, SLATS WOULD NOT EXTEND AND AIRCRAFT ROLLED TO THE RIGHT. CREW DECLARED AN EMERGENCY AND AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND NR 1 SLAT INBOARD IDLER PULLEY BRACKET BROKEN LOOSE FROM FORWARD SPAR BRACKET. AIRCRAFT WAS - [SDR 9803639906](https://openairdocs.org/sdr/9803639906.md): Temp Sensor · dirty · Mar 2, 1998 · N956N · Doug DC931 · Overheat Detection > TAIL COMPARTMENT TEMPERATURE HIGH LIGHT ILLUMINATED AFTER TAKEOFF. FLIGHT WAS RETURNED TO GCM AND LANDED WITHOUT INCIDENT. MAINTENANCE OPERATED ENGINES AND INSPECTED PNEUMATIC DUCTING IN AFT TAIL CONE AREA FOR LEAKS. NO LEAKS WERE FOUND. CLEANED LEFT AND R - [SDR 9803629906](https://openairdocs.org/sdr/9803629906.md): Temp Sensors · failed · Mar 2, 1998 · N956N · Doug DC931 · Overheat Detection > TAIL COMPARTMENT TEMPERATURE HIGH LIGHT ILLUMINATED AFTER TAKEOFF. FLIGHT WAS RETURNED TO GCM AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED BOTH THE LEFT AND RIGHT TAIL COMPARTMENT TEMPERATURE SENSORS. OPERATIONAL CHECK NORMAL ON GROUND. - [SDR 9803209906](https://openairdocs.org/sdr/9803209906.md): Manifold · cracked · Feb 20, 1998 · N956N · Doug DC931 · Pneumatic Distribution System > DURING CLIMB AT 800 FEET, THE LEFT ENGINE EXPERIENCED A FIRE WARNING INDICATION. CREW RETARDED THE LEFT ENGINE THROTTLE SETTING AND INDICATION CEASED. AIRCRAFT RETURNED TO GCM AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED THE 13TH STAGE MANIFOLD - [SDR 9725099906](https://openairdocs.org/sdr/9725099906.md): Support · corroded · Dec 29, 1997 · N956N · Doug DC931 · Fuselage Miscellaneous Structure > DURING L-CHECK, FOUND CORROSION ON CENTER LINE FLOOR SUPPORT FS 229 TO 313. REPAIRED PER EA 99-153471. - [SDR 9725089906](https://openairdocs.org/sdr/9725089906.md): Support · cracked · Dec 29, 1997 · N956N · Doug DC931 · Fuselage Miscellaneous Structure > DURING L-CHECK, FOUND CRACK IN CENTER LINE FLOOR SUPPORT AT FS 277. REPAIRED PER EA 99-153471. - [SDR 9725079906](https://openairdocs.org/sdr/9725079906.md): Jamb · cracked · Dec 20, 1997 · N956N · Doug DC931 · Fuselage Miscellaneous Structure > DURING L-CHECK, FOUND CRACK IN VENTRAL STAIRWAY JAMB, RIGHT SIDE, FS 1087. REPAIRED PER EA 99-153436. - [SDR 9723409906](https://openairdocs.org/sdr/9723409906.md): Wire · broken · Dec 15, 1997 · N956N · Doug DC931 · Light System Wiring > DURING PERIODIC CHECK, FOUND CABIN EMERGENCY STANDBY LIGHT ON FORWARD LOWER CEILING PANEL INOPERATIVE. MAINTENANCE FOUND WIRE L4002E20N MISSING FROM CONNECTOR P1-4011 PIN J. INSTALLED NEW WIRE, OPERATIONAL CHECK NORMAL. - [SDR 9713699906](https://openairdocs.org/sdr/9713699906.md): Switch · failed · Jul 13, 1997 · N956N · Doug DC931 · Landing Gear Position and Warning > NOSE LANDING GEAR GREEN LIGHT REMAINED ON AFTER GEAR WAS RETRACTED. CREW RECYCLED GEAR THREE TIMES WITH SAME RESULTS. FLIGHT WAS RETURNED TO MEM AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED NOSE GEAR UPLIMIT AND LOCK SWITCHES. ALSO, REPLACED INCORRECT - [SDR 9713479906](https://openairdocs.org/sdr/9713479906.md): Battery Pack · discharged · Jul 9, 1997 · N956N · Doug DC931 · Emergency Lighting > FLIGHT ATTENDANT REPORTS AFT STATION FLASHLIGHT INOPERATIVE. REPLACED BATTERY PACK. OPERATIONAL CHECK NORMAL. - [SDR 9709339906](https://openairdocs.org/sdr/9709339906.md): Battery Pack · discharged · May 10, 1997 · N956N · Doug DC931 · Emergency Lighting > DURING LINE MAINTENANCE INSPECTION, FOUND THE RIGHT NACELLE EMERGENCY LIGHT INOPERATIVE. REPLACED BATTERY PACK, OPERATIONAL CHECK NORMAL. - [SDR 9706549906](https://openairdocs.org/sdr/9706549906.md): Wire · broken · Mar 27, 1997 · N956N · Doug DC931 · Light System Wiring > DURING LINE MAITNENANCE INSPECTION, FOUND FORWARD CABIN EMERGENCY LIGHTS BETWEEN ROWS 1 THROUGH 4 AND RIGHT FORWARD ACCESS DOOR INOPERATIVE. REPAIRED WIRING AND REPLACED FUSE, OPERATIONAL CHECK NORMAL. - [SDR 9706409906](https://openairdocs.org/sdr/9706409906.md): Fuse · failed · Mar 22, 1997 · N956N · Doug DC931 · Emergency Lighting > DURING LINE MAINTENANCE INSPECTION, FOUND FLOOR PROXIMITY EMERGENCY LIGHTS IN FORWARD CABIN INOPERATIVE. MAINTENANCE REPLACED FUSE IN POWER SUPPLY, OPERATIONAL CHECK NORMAL. - [SDR 9704119906](https://openairdocs.org/sdr/9704119906.md): Slide · low pressure · Feb 25, 1997 · N956N · Doug DC931 · Escape Slide > DURING LINE MAINTENANCE INSPECITON, FOUND AFT EMERGENCY EXIT EVACUATION SLIDE PRESSURE LOW. REPLACED SLIDE. - [SDR 9700759906](https://openairdocs.org/sdr/9700759906.md): Generator · failed · Jan 14, 1997 · N956N · Doug DC931 · AC Generator-Alternator > RIGHT GENERATOR DROPPED OFF LINE ACCOMPANIED BY AC CROSSTIE LOCKOUT AFTER TAKEOFF. FLIGHT RETURNED TO GCM AND LANDED WITHOUT INCIDENT. MAINTENANCE FOUND RIGHT GENERATOR SHAFT SHEARED INTERNALLY. REPLACED THE GENERATOR. OPERATIONAL CHECK NORMAL. AIRCRAFT R - [SDR 9625859906](https://openairdocs.org/sdr/9625859906.md): O-Ring · broken · Dec 3, 1996 · N956N · Doug DC931 · Aircraft Fuel Distribution System > FUEL LEAKING FROM LEFT WING AFTER TAKEOFF. FLIGHT RETURNED TO MIA AND LANDED WITHOUT INCIDENT. MAINTENANCE FOUND LEAK AT DUCT CONNECTION BETWEEN CROSSFEED VALVE AND FORWARD RIGHT FUEL PUMP. REPLACED O-RINGS. OPERATIONAL CHECK NORMAL. AIRCRAFT RETURNED TO - [SDR 9624989906](https://openairdocs.org/sdr/9624989906.md): Wire · broken · Nov 20, 1996 · N956N · Doug DC931 · Light System Wiring > DURING PERIODIC CHECK, FOUND EMERGENCY AT ROW 18 INOPERATIVE. REPAIRED BROKEN WIRE, OPERATIONAL CHECK NORMAL. - [SDR 9613869906](https://openairdocs.org/sdr/9613869906.md): Batteries · discharged · Jun 24, 1996 · N956N · Doug DC931 · Emergency Lighting > DURING LINE MAINTENANCE INSPECTION, FOUND RIGHT AFT OVERWING EMERGENCY LIGHTS VERY DIM. REPLACED BATTERIES, OPERATIONAL CHECK NORMAL. - [SDR 9610989906](https://openairdocs.org/sdr/9610989906.md): Fitting · corroded · May 8, 1996 · N956N · Doug DC931 · Fuselage, Landing Gear Attach Fittings > DURING H-CHECK, FOUND CORROSION IN THE RIGHT MAIN LANDING GEAR WHEELWELL INBOARD AND OUTBOARD KEEL FITTINGS FS 756. REPLACED FITTINGS PER SRM 51-30-2, SRM 51-30-5. - [SDR 9610309906](https://openairdocs.org/sdr/9610309906.md): Fitting · cracked · May 7, 1996 · N956N · Doug DC931 · Fuselage Miscellaneous Structure > DURING M-CHECK, FOUND A.75 INCH CRACK IN THE FORWARD LOWER INBOARD LIGHTENING HOLE FITTING, RIGHT MAIN LANDING GEAR WHEEL WELL FS 690. REPLACED FITTING PER SRM 51-30-1. - [SDR 9610299906](https://openairdocs.org/sdr/9610299906.md): Fitting · corroded · May 7, 1996 · N956N · Doug DC931 · Fuselage Miscellaneous Structure > DURING M-CHECK, FOUND CORROSION IN THE FS 690 LEFT SUPPORT FITTING AT THE INBOARD ATTACH CLIP. REPLACED FITTING PER SRM 51-30-5. - [SDR 9610289906](https://openairdocs.org/sdr/9610289906.md): Fitting · cracked · May 7, 1996 · N956N · Doug DC931 · Fuselage Miscellaneous Structure > DURING M-CHECK, FOUND A CRACK IN THE FS 691 FITTING IN THE LEFT MAIN LANDING GEAR WHEEL WELL AT THE ANTI-ICE DUCT. REPAIRED FITTING PER SRM 51-30-2. - [SDR 9610279906](https://openairdocs.org/sdr/9610279906.md): Fitting · cracked · May 7, 1996 · N956N · Doug DC931 · Fuselage Miscellaneous Structure > DURING M-CHECK, FOUND A CRACK IN THE LONGERON 29L END FITTING AT FS 760. REPLACED FITTING PER SRM 51-30-2, 51-30-5. - [SDR 9610269906](https://openairdocs.org/sdr/9610269906.md): Fittings · cracked · May 7, 1996 · N956N · Doug DC931 · Fuselage Miscellaneous Structure > DURING M-CHECK, FOUND CRACKS IN THE LONGERON 30 RIGHT AND LEFT END FITTINGS AT THE FORWARD CANTED KEEL. REPLACED FITTINGS PER SRM 51-30-1, 51-30-2. - [SDR 9609149906](https://openairdocs.org/sdr/9609149906.md): Frame · corroded · Apr 20, 1996 · N956N · Doug DC931 · Fuselage Main, Frame > DURING "M" CHECK, FOUND CORROSION ON THE FS 169 FRAME AT THE RIGHT CUSP. REPLACED FITTING PER SRM 51-30-5 AND 51-30-1. - [SDR 9601129906](https://openairdocs.org/sdr/9601129906.md): Connector · dirty · Jan 16, 1996 · N956N · Doug DC932 · Landing Gear Position and Warning > GCM - DURING CLIMB, THE NOSE LANDING GEAR UNSAFE LIGHT ILLUMINATED AFTER LANDING GEAR RETRACTION. RECYCLED LANDING GEAR AND LIGHT EXTINGUISHED. AIRCRAFT CONTINUED TO DESTINATION AND LANDED WITHOUT INCIDENT. LUBRICATED NOSE LANDING GEAR, CLEANED CANNON PLUG - [SDR 9517909906](https://openairdocs.org/sdr/9517909906.md): Guide Pins · worn · Nov 8, 1995 · N956N · Doug DC931 · Aerodynamic Fairings > DURING LINE CHECK, FOUND THAT EXCESSIVE FORCE WAS REQUIRED TO PULL THE EXTERNAL TAILCONE HANDLE. ALSO, FOUND 5 WORN GUIDE PINS. REPLACED THE PINS AND ADJUSTED THE PULL FORCE. - [SDR 9513089906](https://openairdocs.org/sdr/9513089906.md): Dnlock Switch · malfunctioned · Aug 25, 1995 · N956N · Doug DC931 · Landing Gear Position and Warning > ON APPROACH INTO DTW, NOSE LANDING GEAR UNSAFE LIGHT REMAINED ON AFTER GEAR WAS EXTENDED AND FLAPS AT 25 DEGREES. EMERGENCY GEAR EXTENSION PROCEDURES WERE UTILIZED AND EMERGENCY EQUIPMENT WAS CALLED TO MEET FLIGHT ON LANDING AS A PRECAUTION. AIRCRAFT LANDED - [SDR 9503789906](https://openairdocs.org/sdr/9503789906.md): Generators · malfunctioned · Mar 9, 1995 · N956N · Doug DC931 · AC Generation System > LEFT AND RIGHT GENERATORS DROPPED OFF LINE DURING TAKEOFF ROLL. ABORTED TAKEOFF AND RETURNED TO GATE. RAN OPERATIONAL CHECK WITH NO PROBLEMS FOUND. AIRCRAFT RETURNED TO SERVICE. ## 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 = 'N956N' AND deregistration_id = 'N956N-2013-02-06' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/deregistered/N956N-2013-02-06/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.