# Service difficulty reports: N7251U, cancelled Jan 6, 2003 A list on [N7251U, cancelled Jan 6, 2003](https://openairdocs.org/deregistered/N7251U-2003-01-06.md). Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first. - [SDR 2001UALA00122](https://openairdocs.org/sdr/2001UALA00122.md): Harness · burned · Feb 16, 2001 · N7251U · Boeing 727222 · AC Power Distribution System > STRONG BURNING ODOR IN E&E COMPARTMENT. *S/D* APU FEEDER HARNESS BURNED AT FIREWALL CONNECTOR. REPLACED APU HARNESS WIRES PER GN-MM 2-0-15-1. - [SDR 2000UALA00642](https://openairdocs.org/sdr/2000UALA00642.md): Line · leaking · Oct 25, 2000 · N7251U · Boeing 727222 · Hydraulic System, Main > A-SYSTEM HYDRAULIC FLUID WENT FROM 3.5 TO 1.0 GAL. THE SYSTEM WAS ISOLATED, A-PUMPS OFF. *S/D* FOUND LINE TO A SYSTEM PRESSURE TRANSMITTER LEAKING. MANUFACTURED AND INSTALLED REPLACEMENT HYDRAULIC LINE. PRESSURE CHECK OK. - [SDR 2000UALA00065](https://openairdocs.org/sdr/2000UALA00065.md): Seat · loose · Feb 9, 2000 · N7251U · Boeing 727222 · Passenger Compartment Equipment > SEAT ROW 16ABC INBOARD FOOT LOOSE. *S/D* SHEARED RIVETS ON ANCHOR NUT. REF:IPC 25-00-XX-060K ITEM 16-17) HAVE SHEARED OFF DUE TO INCORRECT INSTALLATION OF SEAT ASSEMBLY. BRACKET (PCN 020-1834) WAS REPLACED BY LINE AMT. - [SDR 2000UALA00047](https://openairdocs.org/sdr/2000UALA00047.md): Seat · loose · Jan 31, 2000 · N7251U · Boeing 727222 · Passenger Compartment Equipment > SEAT 12 ABC APPEARED TO BE LOOSE IN TRACK. *S/D* FINDINGS INDICATE FORWARD ATTACH POINT EXTENDED TOO FAR PUTTING PRESSURE ON MONEL RIVETS RATHER THAN ON ATTACH BRACKET. ISOLATED INCIDENT. - [SDR 99UAL900548](https://openairdocs.org/sdr/99UAL900548.md): Connector · corroded · Oct 24, 1999 · N7251U · Boeing 727222 · Buffet/Galleys > AFT COFFEEMAKER CAUSED SMOKE, SMOKE STOPPED WHEN POT TURNED OFF. *S/D* SMOKE CAUSED BY CORRODED AND BURNED CONNECTOR ON AIRCRAFT SIDE. REPLACED CONNECTOR. THIS WAS AN ISOLATED INCIDENT. - [SDR 99UAL900545](https://openairdocs.org/sdr/99UAL900545.md): Actuator · failed · Oct 21, 1999 · N7251U · Boeing 727222 · Leading Edge Slat Actuator > SLATS NR 2, 3, 6 AND 7 WOULD NOT RETRACT WHEN FLAP 2 DEGREES SELECTED FROM 5 DEGREES. NR 4 SLAT TRANSITION LIGHT DID NOT ILLUMINATE DURING RETRACTION. RETURNED TO ORD. *S/D* REPLACED LEADING EDGE POSITION CONTROL UNIT, OPERATIONAL CHECK NORMAL. - [SDR 99UAL900416](https://openairdocs.org/sdr/99UAL900416.md): Sequence Valve · leaking · Aug 7, 1999 · N7251U · Boeing 727222 · Landing Gear Retraction/Extension System > ON GEAR EXTENSION AIRCRAFT LOST HYDRAULIC SYSTEM A. BOTH PUMPS RAN TO ZERO HYDRAULIC FLUID QUANTITY. *S/D* REPLACED NR 1 AND NR 2 ENGINE DRIVEN HYDRAULIC PUMPS AND REPLACED LT MLG LOCK OPERATED SEQUENCE VLV PER MAINTENANCE MANUAL. PERFORMED NORMAL RETRACTI - [SDR 99UAL900392](https://openairdocs.org/sdr/99UAL900392.md): Relay · failed · Jul 22, 1999 · N7251U · Boeing 727222 · Fuel Boost Pump > AFTER TAKEOFF, ALL BOOST PUMPS FOR NR 2 FUEL TANK FAILED. CIRCUIT BREAKERS POPPED. AFT FLIGHT REPORTED FUEL FUMES. RETURNED TO DEN. *S/D* MOST LIKELY CAUSE MAY HAVE BEEN A FAULTY APU BUS CIRCUIT BREAKER. PUMPS WERE TRIPPING THEIR BREAKERS WHEN USING APU - [SDR 99UAL900360](https://openairdocs.org/sdr/99UAL900360.md): Seal · worn · Jul 7, 1999 · N7251U · Boeing 727222 · Air Intake Anti/De-Ice System > RETURNED TO SFO DUE TO STRUT OVERHEAT LIGHT CAME ON AFTER TAKEOFF. *S/D* LEAKING SEAL ON UPPER SIDE OF ANTI-ICE VALVE. REPLACED SEAL. - [SDR 99UAL900004](https://openairdocs.org/sdr/99UAL900004.md): Switch · failed · Jan 3, 1999 · N7251U · Boeing 727222 · Engine Thrust Reverser > TAKEOFF ABORTED AT APPROXIMATELY 90 KNOTS DUE TO NR 2 ENGINE REVERSER LIGHT ILLUMINATED DURING TAKEOFF ROLL. *S/D* BAD STOW SWITCH. REPLACED STOW SWITCH. - [SDR 98UAL900590](https://openairdocs.org/sdr/98UAL900590.md): Switch · intermittent · Dec 7, 1998 · N7251U · Boeing 727222 · Engine Thrust Reverser > NR 2 REVERSER NOT STOWED LIGHT CAME ON AT 100 KNOTS ON TAKEOFF. ABORTED TAKEOFF. *S/D* SUBSEQUENT TROUBLESHOOTING OR THE REVERSER OPERATION REVEALED WHAT APPEARED TO BE A BAD SWITCH ASSEMBLY. THE SWITCH WAS REPLACED AND THE FAILED UNIT BROUGHT INTO THE SHOP - [SDR 97UAL900743](https://openairdocs.org/sdr/97UAL900743.md): Batteries · discharged · Sep 30, 1997 · N7251U · Boeing 727222 · Emergency Lighting > RIGHT FORWARD OVERWING EMERGENCY EXIT LIGHT IS INOPERATIVE. REPLACED BATTERIES AND THE SYSTEM CHECKS OK. - [SDR 97UAL900735](https://openairdocs.org/sdr/97UAL900735.md): Mechanism · out of adjust · Sep 25, 1997 · N7251U · Boeing 727222 · Passenger/Crew Doors > AFTER LANDING AND DURING TAXI, DOOR 1L OPEN LIGHT ON FLIGHT ENGINEER'S PANEL CAME ON. FLIGHT ATTENDANT HAD TO FORCE DOOR HANDLE CLOSED. DOOR HANDLE TAKES EXCESSIVE FORCE TO CLOSE. *S/D* PRESSURIZATION DOOR STOPS FOUND OUT OF RIG. ADJUSTED PER MAINTENANCE - [SDR 96UAL900929](https://openairdocs.org/sdr/96UAL900929.md): Gear Handle · malfunctioned · Dec 6, 1996 · N7251U · Boeing 727222 · Landing Gear Selector > ON LANDING, GEAR EXTENSION ALL GEAR UNSAFE LIGHTS REMAINED ON. HANDLE WOULD NOT GO TO DETENT, MUSHY HANDLE AND MISSED APPROACH. *S/D* JACKED AIRCRAFT AND PERFORMED SEVERAL GEAR SWINGS, INCLUDING TEST OF MANUAL GEAR EXTENSION SYSTEM. NO ABNORMALITIES NOTED. - [SDR 95UAL900351](https://openairdocs.org/sdr/95UAL900351.md): Actuating Arm · failed · Dec 27, 1995 · N7251U · Boeing 727222 · Landing Gear Door Retract Section > RIGHT MAIN GEAR FAILED TO RETRACT. RT GEAR INTRANSIT LIGHT ON DURING FIRST ATTEMPT. CYCLED GEAR AND RT GEAR LIGHT AND RT GEAR DOOR LIGHT ON. FLIGHT RETURNED TO ORD. REMOVED, INSPECTED AND REINSTALLED RIGHT MLG OUTER DOOR ACTUATION ARM. JACKED AIRCRAFT AND - [SDR 95UAL900254](https://openairdocs.org/sdr/95UAL900254.md): Rivet · sheared · Nov 9, 1995 · N7251U · Boeing 727222 · Fuselage Miscellaneous Structure > RETURNED TO ORD DUE TO BIRD STRIKE. ACCOMPLISHED BIRD STRIKE INSPECTION. ALL THREE ENGINE INLETS CHECKED AND NO DAMAGE FOUND. REPLACED SHEARED RIVET AT CO-PILOT'S WINDOW POST. - [SDR 95UAL727038](https://openairdocs.org/sdr/95UAL727038.md): Actuator · malfunctioned · May 25, 1995 · N7251U · Boeing 727222 · Landing Gear Door Actuator > RT MLG DOOR LIGHT ON WITH HANDLE IN OFF POS, USED OVERRIDE TO GET HANDLE TO UP POS, LIGHT WENT OUT. ON SECOND TRY GEAR HANDLE HARD TO MOVE UP, NEEDED TRIGGER. REPLACED RIGHT GEAR DOOR ACTUATOR. ALSO, REPLACED LANDING GEAR ACCESSORY MODULE PROX CARDS A11, 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 = 'N7251U' AND deregistration_id = 'N7251U-2003-01-06' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/deregistered/N7251U-2003-01-06/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.