# Service difficulty reports: N7456U, cancelled Sep 15, 2009 A list on [N7456U, cancelled Sep 15, 2009](https://openairdocs.org/deregistered/N7456U-2009-09-15.md). Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first. - [SDR 2001UALA01405](https://openairdocs.org/sdr/2001UALA01405.md): Switch · failed · Jul 13, 2001 · N7456U · Boeing 727222 · Leading Edge Slat Control System > LEADING EDGE FLAP AMBER LIGHT INDICATION OCCURRED AFTER CLIMBOUT. AIRCRAFT CONTINUED TO MIA. SUPPLEMENTAL DATA UPDATE FOUND #2 LEADING EDGE FLAP SWITCH FAULTY AND REPLACED SWITCH. - [SDR 2001UALA00621](https://openairdocs.org/sdr/2001UALA00621.md): Clip · cracked · Apr 29, 2001 · N7456U · Boeing 727222 · Fuselage Miscellaneous Structure > STRINGER 21R CLIP CRACKED AND BUCKLED AT BS 460 ATTACHMENT. REPLACED STRINGER CLIP AT STRINGER 21R PER SRM 53-10-3 - [SDR 2001UALA00617](https://openairdocs.org/sdr/2001UALA00617.md): Frame · cracked · Apr 29, 2001 · N7456U · Boeing 727222 · Fuselage Main, Frame > FUSELAGE FRAME AT BS 420 IS CRACKED ALONG THE RADIUS BETWEEN STRINGER 20R AND 21R.. INSTALLED EXTERNAL DOUBLER PER SRM 53-30-3 AND 53-10-2 DUE TO SKIN CRACKING - [SDR 2000UALA00418](https://openairdocs.org/sdr/2000UALA00418.md): Light · failed · Jul 12, 2000 · N7456U · Boeing 727222 · Emergency Lighting > OVERHEAD EMERGENCY LIGHT IN COCKPIT WILL NOT SHUTOFF. *S/D* REPLACED EMERGENCY LIGHT ASSEMBLY. - [SDR 2000UALA00362](https://openairdocs.org/sdr/2000UALA00362.md): Fuel Cell · overserviced · Jun 22, 2000 · N7456U · Boeing 727222 · Fuel Storage > ABORTED TAKEOFF AT 120 KNOTS DUE TO AIRCRAFT VENTING FUEL FROM NR 1 TANK. *S/D* MAINTENANCE SUSPECTED TOO MUCH FUEL WAS PUT IN NR 1 TANK. DRIPPED TANK AND TRANSFERRED EXCESS FUEL. - [SDR 98UAL900446](https://openairdocs.org/sdr/98UAL900446.md): Battery · discharged · Sep 4, 1998 · N7456U · Boeing 727222 · Emergency Lighting > LEFT OVERWING FORWARD EMERGENCY LIGHT IS ILLUMINATED WHEN THE POWER IS OFF. *S/D* BATTERY CHARGE WAS FOUND TO BE LOW. BATTERY PACK WAS REPLACED AND CHECKED FOR PROPER OPERATION. - [SDR 98UAL900433](https://openairdocs.org/sdr/98UAL900433.md): Power Supply · inoperative · Aug 29, 1998 · N7456U · Boeing 727222 · Emergency Lighting > BOTH LEFT WING EMERGENCY EXIT LIGHTS STAY ON WITH SWITCH OFF. *S/D* REPLACED POWER SUPPLY, CHECKS GOOD. - [SDR 98UAL900396](https://openairdocs.org/sdr/98UAL900396.md): Battery Pack · discharged · Aug 18, 1998 · N7456U · Boeing 727222 · Emergency Lighting > OVERWING EMERGENCY EXIT LIGHTS AT LEFT SIDE ROW 15 AND 17 WILL NOT EXTINGUISH. *S/D* RESET BATTERY PACK, OPS CHECKS GOOD. - [SDR 98UAL900380](https://openairdocs.org/sdr/98UAL900380.md): Battery Pack · discharged · Aug 7, 1998 · N7456U · Boeing 727222 · Emergency Lighting > LEFT FORWARD EXTERIOR EMERGENCY LIGHT BATTERY CHARGER IS INOPERATIVE. *S/D* REPLACED BATTERY PACK, OP CHECKS OK. - [SDR 98UAL900117](https://openairdocs.org/sdr/98UAL900117.md): Lamp · failed · Mar 17, 1998 · N7456U · Boeing 727222 · Emergency Lighting > EMERGENCY EXIT LIGHT ON LEFT FUSELAGE AFT OF WING IS INOPERATIVE. RELAMPED. - [SDR 97UAL900866](https://openairdocs.org/sdr/97UAL900866.md): Uplock · iced up · Dec 10, 1997 · N7456U · Boeing 727222 · Landing Gear Retraction/Extension System > TAXIED THROUGH SLUSH, AFTER TAKEOFF LEFT AND RIGHT LANDING GEAR DOORS LIGHT CAME ON. RECYCLED 5 TIMES WITH NO HELP. WHEN GEAR LEVER MOVED FROM UP TO OFF BOTH MAIN GEAR FELL DOWN WITH GREEN LIGHTS. RETURNED TO DEN. *S/D* JACKED AIRCRAFT AND ACTUATED GEAR - [SDR 97UAL900528](https://openairdocs.org/sdr/97UAL900528.md): Clamp · loose · Jun 27, 1997 · N7456U · Boeing 727222 · Pneumatic Distribution System > AFTER TAKEOFF, NR 3 ENGINE STRUT OVERHEAT LIGHT ILLUMINATED. *S/D* SECURED LOOSE DUCT CLAMP IN NR 3 ENGINE STRUT. - [SDR 97UAL900123](https://openairdocs.org/sdr/97UAL900123.md): Regulator · failed · Feb 10, 1997 · N7456U · Boeing 727222 · Pneumatic Distribution System > AFTER TAKEOFF, CABIN FILLED WITH SMOKE. RIGHT PACK COMPRESSOR TEMPERATURE WENT INTO YELLOW BAND. MAIN SUPPLY TEMPERATURE EXCEEDED 160 DEGREES. REPLACED BLEED AIR REGULATOR. - [SDR 97UAL900100](https://openairdocs.org/sdr/97UAL900100.md): Valve · stuck · Feb 2, 1997 · N7456U · Boeing 727222 · Cabin Pressure Control System > JUST AFTER ROTATION, THE RIGHT PACK OVERHEAT LIGHT CAME ON AND NR THREE BLEED TRIPPED. CABIN FILLED WITH SMOKE. RETURNED TO FIELD. OPERATED RIGHT PACK ON TAXI IN AND SMOKE CLEARED. FOUND 13TH STAGE MOD VALVE STUCK OPEN. REPLACED VALVE AND REGULAR. CHECKS - [SDR 96UAL900706](https://openairdocs.org/sdr/96UAL900706.md): Vent Tube Elbow · broken · Sep 14, 1996 · N7456U · Boeing 727222 · Aircraft Fuel Distribution System > NR 1 FUEL TANK 300 POUNDS BELOW RIGHT WING WHILE FEEDING ALL ENGINES FROM NR 2 FUEL TANK. REPLACED BROKEN NR 1 FUEL TANK VENT TUBE ELBOW. - [SDR 96UAL900606](https://openairdocs.org/sdr/96UAL900606.md): Fan · failed · Aug 7, 1996 · N7456U · Boeing 727222 · Air Distribution Fan > SMOKE IN CABIN. GASPER FAN SWITCHED OFF AND SMOKE APPEARED TO DISSIPATE. *S/D* INSPECTED GASPER FAN, FOUND FAN MAKING LOUD NOISE. - [SDR 96UAL900530](https://openairdocs.org/sdr/96UAL900530.md): Hyd Fluid · lost · Jul 12, 1996 · N7456U · Boeing 727222 · Hydraulic System, Main > LOST ALL OF B-SYSTEM HYDRAULIC FLUID ON DEPARTURE, RETURNED TO SEA. - [SDR 96UAL900491](https://openairdocs.org/sdr/96UAL900491.md): Actuator · bypassing · Jun 27, 1996 · N7456U · Boeing 727222 · Steering Unit > ON THE RUNWAY LINE UP THE NOSE WHEEL STEERING FAILED, LOCKED WITH TILLER BOW FULL RIGHT. MAINTENANCE TOWED AIRCRAFT BACK TO GATE. *S/D* REPLACED NLG STEERING CYLINDER DUE TO BYPASSING. - [SDR 95UAL727032](https://openairdocs.org/sdr/95UAL727032.md): Hyd Hose · ruptured · Apr 4, 1995 · N7456U · Boeing 727222 · Hydraulic System, Main > NR 1 AND 2 ENGINE 'A' SYS HYD LOW PRESS LIGHT ON INTERMITTENTLY. BOTH PUMPS WENT INOPERATIVE AND AIRCRAFT OPERATED FOR ONE HOUR WITHOUT FLUID FLOW. TURNED OFF BOTH PUMPS. REPLACED NR 2 ENGINE 'A' SYSTEM HYDRAULIC SUPPLY HOSE, NR 1 AND 2 ENGINE DRIVEN HYDRA ## 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 = 'N7456U' AND deregistration_id = 'N7456U-2009-09-15' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/deregistered/N7456U-2009-09-15/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.