# Service difficulty reports: N7453U, cancelled Sep 22, 2006 A list on [N7453U, cancelled Sep 22, 2006](https://openairdocs.org/deregistered/N7453U-2006-09-22.md). Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first. - [SDR 2001UALA00243](https://openairdocs.org/sdr/2001UALA00243.md): Vent Line · leaking · Mar 12, 2001 · N7453U · Boeing 727222 · Aircraft Fuel Filter/Strainer > NR 3 FUEL TANK QUANTITY STEADILY DECREASED DURING CLIMB. SUPPLEMENTAL DATA UPDATE ELBOW VENT TUBE CRACKED. REPLACED VENT TUBE. - [SDR 2001UALA00012](https://openairdocs.org/sdr/2001UALA00012.md): Pump · failed · Jan 3, 2001 · N7453U · Boeing 727222 · Fuel Boost Pump > DURING CRUISE, THE NR 1 TANK FUEL BOOST PUMP FAILED. AIRCRAFT DIVERTED TO DSM. *S/D* RAN NR 1 AFT FUEL BOOST PUMP TO RUN APU FOR APPROXIMATELY.5 HR, RAN NR 1 ENGINE FOR 20 MINUTES. BOOST PUMP OPERATED NORMALLY. - [SDR 2000UALA00798](https://openairdocs.org/sdr/2000UALA00798.md): Warning System · malfunctioned · Dec 20, 2000 · N7453U · Boeing 727222 · Landing Gear Position and Warning > NOSE GEAR DOOR LIGHT AND RED DOOR LIGHTS STAYED ON AFTER GEAR RETRACTION. GEAR RECYCLED AND LIGHT STAYED ON. NOISE SOUNDED LIKE GEAR DOORS OPEN. *S/D* ACCOMPLISHED NLG DOOR RIG CHECK PER MAINTENANCE MANUAL. CYCLED GEAR THREE TIMES, PLUSMANUAL GEAR EXTENSI - [SDR 99UAL900588](https://openairdocs.org/sdr/99UAL900588.md): Rib · misdrilled · Nov 9, 1999 · N7453U · Boeing 727222 · Horizontal Stabilizer, Spar/Rib > DURING HEAVY MAINTENANCE A FASTENER HOLE COMMON TO THE RIGHT HAND HORIZONTAL STABILIZER ELEVATOR HINGE RIB WAS MISDRILLED RESULTING IN A DOUBLE HOLE CONDITION. THE DISCREPANT HOLE WAS OVERSIZED TO A CLEAN ROUND CONDITION AND A FREEZE PLUG WAS INSTALLED PER T - [SDR 99UAL900053](https://openairdocs.org/sdr/99UAL900053.md): Cover · loose · Jan 20, 1999 · N7453U · Boeing 727222 · Passenger/Crew Doors > ON CLIMBOUT, A CONTINUOUS LOUD SQUEAL CAME FROM MAIN CABIN DOOR 1L. AIRCRAFT RETURN TO ORD. *S/D * FOUND PASSENGER ENTRANCE DOOR LOWER HINGE COVER LOOSE. STAKED HINGE PIN AND SEALED. REPLACED LOWER HINGE COVER DOOR, OPS CHECK NORMAL. - [SDR 98UAL900509](https://openairdocs.org/sdr/98UAL900509.md): Tube · leaking · Oct 20, 1998 · N7453U · Boeing 727222 · Hydraulic System, Main > A-HYDRAULIC SYSTEM PRESSURE INDICATION ZERO. ENGINE 1 AND 2 PUMP LOW PRESSURE LIGHTS ON. LOST ALL A-SYSTEM HYDRAULICS DURING FLAP RETRACTION AFTER LANDING. *S/D* REPAIRED LEAKING HYD LINE AT NR 6 L/E SLAT ACTUATOR. OPS CK FOUND BOTH ACTUATOR ATTACH BRACKE - [SDR 98UAL900377](https://openairdocs.org/sdr/98UAL900377.md): Switch · dirty · Aug 4, 1998 · N7453U · Boeing 727222 · Fuel Quantity Indicator > AFTER DEPARTURE ALL FUEL QUANTITY GAUGES DROPPED TO ZERO. RESETTING CIRCUIT BREAKER DID NOT SOLVE PROBLEM. FLIGHT WAS DIVERTED TO SYR. *S/D* SUSPECTED REFUELING PANEL POWER SWITCH. CLEANED POWER SWITCH AT REFUELING PANEL. NO SUBSEQUENT WRITE-UPS. - [SDR 98UAL900335](https://openairdocs.org/sdr/98UAL900335.md): Battery Pack · discharged · Jul 19, 1998 · N7453U · Boeing 727222 · Emergency Lighting > EMERGENCY EXIT SIGN ABOVE AFT EXIT DOOR INOPERATIVE. *S/D* REPLACED CHARGER AND BATTERY. - [SDR 97UAL900818](https://openairdocs.org/sdr/97UAL900818.md): Clamp · loose · Nov 10, 1997 · N7453U · Boeing 727222 · Pneumatic Distribution System > DURING CRUISE, NR 3 STRUT OVERHEAT LIGHT CAME ON, POWERED BACK AND LIGHT WENT OUT. SECURED BLEED. ADVANCE POWER OPERATION NORMAL. *S/D* SECURED LOOSE CLAMP ON THE HIGH PRESSURE SHUTOFF VALVE. - [SDR 97UAL900387](https://openairdocs.org/sdr/97UAL900387.md): Anti-Ice Duct · broken · May 22, 1997 · N7453U · Boeing 727222 · Airfoil Anti/De-ice System > CREW REPORTED LOUD WHOOSHING SOUND IN AFT AIRSTAIR AREA WHEN ENGINE ANTI-ICE IS TURNED ON. SOUND GOES AWAY WHEN ENGINE ANTI-ICE IS TURNED OFF. *S/D* REPLACED NR 2 ENGINE ANTI-ICE DUCT ABOVE THE STAIRWELL AND THE S-DUCT. - [SDR 97UAL900367](https://openairdocs.org/sdr/97UAL900367.md): Fuel · transfer · May 15, 1997 · N7453U · Boeing 727222 · Aircraft Fuel Distribution System > CREW REPORTED AN UNWANTED FUEL TRANSFER OUT OF THE NR 1 MAIN FUEL TANK. INSPECTED FUEL VENT PIPE. NO DISCREPANCIES NOTED. UNABLE TO DUPLICATE CREW REPORT. NO HISTORY OF UNWANTED FUEL TRANSFER. - [SDR 97UAL900043](https://openairdocs.org/sdr/97UAL900043.md): Seam · leaking · Jan 6, 1997 · N7453U · Boeing 727222 · Escape Slide > SLIDE REMOVED FROM DOOR 1L FOR AIR CRUISERS SERVICE INFORMATION LETTER 25-98 DEVELOPED AN INFLATION TUBE SEAM LEAK DURING SHOP TEST. SLIDE REPAIRED. - [SDR 96UAL900789](https://openairdocs.org/sdr/96UAL900789.md): O-Ring · cut · Oct 8, 1996 · N7453U · Boeing 727222 · Turbine Engine Oil System > NR 2 ENGINE SHUT DOWN IN FLIGHT DUE TO EXCESSIVE OIL CONSUMPTION, 1 GALLON PER HOUR. *S/D* FOUND MAIN OIL SCREEN O-RING CUT. REPLACED O-RING AND RAN ENGINE FOR 5 MINUTES, NO LEAKS NOTED. - [SDR 96UAL900742](https://openairdocs.org/sdr/96UAL900742.md): Bleed Syst · inoperative · Sep 24, 1996 · N7453U · Boeing 727222 · APU Bleed Air System > APU BLEED SYSTEM INOPERATIVE. WHEN APU BLEED SWITCH IS PLACED IN THE OFF POSITION, EGT RISES RAPIDLY AND PACKS TRIP. - [SDR 96UAL900662](https://openairdocs.org/sdr/96UAL900662.md): Elbow · cracked · Aug 29, 1996 · N7453U · Boeing 727222 · Aircraft Fuel Distribution System > NR 3 MAIN TANK LOST 1,000 LBS OF FUEL DURING TAKEOFF. *S/D* FUEL VENT TUBE ELBOW CRACKED. REPLACED ELBOW. - [SDR 95UAL900227](https://openairdocs.org/sdr/95UAL900227.md): Oil Syst · malfunctioned · Oct 24, 1995 · N7453U · Boeing 727222 · APU Oil System > RETURNED T0 GATE. CABIN FILLED WITH SMOKE FROM AIR CONDITIONING SYSTEM. FOUND THAT APU HAD LOST ALL OIL IN TANK AND OIL IS VISIBLE IN APU EXHAUST. DIAGNOSTIC WAS PERFORMED TO CONFIRM REPORTED OIL LOSS. APU S/N 6391 TESTED OK. UNABLE TO ATTRIBUTE REPORTED - [SDR 95UAL900222](https://openairdocs.org/sdr/95UAL900222.md): Air Distribution · smoke · Oct 20, 1995 · N7453U · Boeing 727222 · Air Distribution System > AIRCRAFT RETURNED TO GATE ON ACCOUNT OF CABIN FILLED WITH SMOKE FROM AIR CONDITIONING SYSTEM. APU REMOVED AND OPERATED IN TEST CELL, NO EVIDENCE OF OIL LOSS OR PROBABILITY OF DUCT CONTAMINATION. OIL LOSS COULD HAVE BEEN OVERSERVICING. APU RECEIVED C-CHECK ## 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 = 'N7453U' AND deregistration_id = 'N7453U-2006-09-22' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/deregistered/N7453U-2006-09-22/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.