# Service difficulty reports: N146US, cancelled Nov 1, 2002 A list on [N146US, cancelled Nov 1, 2002](https://openairdocs.org/deregistered/N146US-2002-11-01.md). Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first. - [SDR 0101231146](https://openairdocs.org/sdr/0101231146.md): Longeron · corroded · Feb 28, 2001 · N146US · Doug DC1040 · Fuselage Main, Longeron/Stringer > DURING M-CHECK, FOUND CORROSION ON VERTICAL LEG OF LONGERON AT NUMBER 3 AIR CONDITIONING EXHAUST DOOR CUTOUT AT BS 515-520 JUST ABOVE THE LOWER EDGE. REPAIRED PER EA 11-180800. - [SDR 0101221146](https://openairdocs.org/sdr/0101221146.md): Doubler · corroded · Feb 15, 2001 · N146US · Doug DC1040 · Fuselage Main, Structure > DURING M-CHECK, FOUND CORROSION ON FORWARD CARGO DOOR JAMB DOUBLER AT BS 910 ABOVE L43R. REPAIRED PER EA 11-180797. - [SDR 0101201146](https://openairdocs.org/sdr/0101201146.md): Floorbeam · damaged · Jan 29, 2001 · N146US · Doug DC1040 · Fuselage Main, Floor Beam > DURING M-CHECK, MAIN CABIN FLOORBEAM AT BS 1293 WAS FOUND SEVERED AT LBL 106 AND CRACKED AT RBL 106 JUST INSIDE OF NR 3 LT AND NR 3 RT DOORS. REPAIRED PER EA 11-180795. - [SDR 0101431146](https://openairdocs.org/sdr/0101431146.md): Beam · corroded · Jan 26, 2001 · N146US · Doug DC1040 · Fuselage Miscellaneous Structure > DURING M-CHECK, FOUND CORROSION ON LOWER END OF BEAM AT BS 1521 PRESSURE BULKHEAD. REPAIRED PER EA 11-182647. - [SDR 9722511146](https://openairdocs.org/sdr/9722511146.md): Tr Unit · malfunctioned · Dec 3, 1997 · N146US · Doug DC1040 · Engine Thrust Reverser > ON TAKEOFF ROLL AS POWER WAS APPLIED, THE NR 1 ENGINE THRUST REVERSER UNLOCK LIGHT ILLUMINATED. TAKEOFF WAS ABORTED AT APPROXIMATELY 30 KTS AND THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE PLACED THE REVERSER ON MEL 78-1A. - [SDR 9722201146](https://openairdocs.org/sdr/9722201146.md): Thrust Reverser · malfunctioned · Nov 26, 1997 · N146US · Doug DC1040 · Engine Thrust Reverser > DURING LANDING ROLLOUT, THE NR 1 ENGINE THRUST REVERSER FAILED TO STOW. THE CREW RECYCLED THE REVERSER AND A COMPRESSOR STALL OCCURRED. MAX EGT WAS 650C. THE ENGINE WAS SHUT DOWN. THE OUTBOARD REVERSER SLEEVE DEPARTED THE AIRCRAFT. MAINTENANCE LOCKED OUT - [SDR 9722871146](https://openairdocs.org/sdr/9722871146.md): Web · cracked · Nov 21, 1997 · N146US · Doug DC1040 · Fuselage Miscellaneous Structure > DURING L-CHECK, FOUND CRACKS IN THE NOSE LANDING GEAR WHEEL WELL, LEFT AND RIGHT CORNER WEB AROUND FASTENERS FS 488. REPAIRED PER EA 11-153553. - [SDR 9711421146](https://openairdocs.org/sdr/9711421146.md): Tr Unit · locked out · Jun 14, 1997 · N146US · Doug DC1040 · Engine Thrust Reverser > DURING TAKEOFF ROLL, NR 2 ENGINE THRUST REVERSER UNLOCK LIGHT ILLUMINATED. TAKEOFF WAS ABORTED AT 90 KNOTS. MAINTENANCE VERIFIED THAT THE THRUST REVERSER WAS LOCKED OUT AND CHANGED THE MEL TO 78-2A. - [SDR 9705451146](https://openairdocs.org/sdr/9705451146.md): Web · cracked · Mar 1, 1997 · N146US · Doug DC1040 · Fuselage Miscellaneous Structure > DURING LINE CHECK, MULTIPLE CRACKS WERE FOUND IN THE NCA6246-28 NOSE GEAR SUPPORT WEB AT THE UPPER FORWARD CORNERS OF BOTH LEFT AND RIGHT WEBS. REPAIRED PER EA 11-123544. - [SDR 9703081146](https://openairdocs.org/sdr/9703081146.md): Compressor · stalled · Feb 12, 1997 · N146US · Doug DC1040 · Turbine Engine Compressor Section > DURING LANDING, THE NR 3 ENGINE COMPRESSOR STALLED WHILE IN REVERSE. ENGINE WAS SHUT DOWN WHILE STILL IN REVERSE. PERFORMED INSPECTION WITH NO FAULTS FOUND, OPERATIONAL CHECK OK. - [SDR 9702801146](https://openairdocs.org/sdr/9702801146.md): Tr System · malfunctioned · Feb 9, 1997 · N146US · Doug DC1040 · Engine Thrust Reverser > DURING TAKEOFF, THE NR 3 ENGINE REVERSER UNLOCK LIGHT ILLUMINATED. TAKEOFF WAS ABORTED. RERIGGED REVERSER SYSTEM. - [SDR 9702491146](https://openairdocs.org/sdr/9702491146.md): Tt2 Sensor · failed · Feb 7, 1997 · N146US · Doug DC1040 · Engine BMEP/Torque Indicating > DURING TAKEOFF, THE NR 1 ENGINE FAILED TO ACCELERATE. TAKEOFF WAS ABORTED AT 70 KNOTS. MAINTENANCE REPLACED THE TT2 SENSOR AND RETURNED TO SERVICE. - [SDR 9624451146](https://openairdocs.org/sdr/9624451146.md): Compressor · stalled · Nov 14, 1996 · N146US · Doug DC1040 · Turbine Engine Compressor Section > DURING POWER REDUCTION AT FL210, THE NR 1 ENGINE EXPERIENCED A COMPRESSOR STALL. AS EGT CLIMBED TO 750 DEGREES, THE ENGINE WAS SHUT DOWN AND RESTARTED. CREW FOLLOWED COCKPIT OPERATING PROCEDURE AND CONTINUED FLIGHT TO PHL WITHOUT FURTHER INCIDENT. VISUAL AN - [SDR 9621731146](https://openairdocs.org/sdr/9621731146.md): Tr Light · illuminated · Oct 10, 1996 · N146US · Doug DC1040 · Engine Thrust Reverser > DURING TAKEOFF ROLLOUT, THE NR 3 THRUST REVERSER LIGHT ILLUMINATED AT 60 KNOTS. CREW ABORTED TAKEOFF AND WHILE TAXING, REALIZED THAT THE REVERSER WAS ON MEL FROM A PREVOUS INCIDENT. FLIGHT DEPARTED AND TO BOS WITHOUT FURTHER INCIDENT. - [SDR 9621741146](https://openairdocs.org/sdr/9621741146.md): Rev Unlock Light · illuminated · Oct 8, 1996 · N146US · Doug DC1040 · Engine Thrust Reverser > DURING TAKEOFF ROLLOUT, THE NR 3 ENGINE REVERSER UNLOCK LIGHT ILLUMINATED. CREW ABORTED TAKEOFF AND RETURNED TO GATE. MAINTENANCE INSPECTED THE REVERSER AND DEFERRED REPAIR PER MEL 78-1A. - [SDR 9617961146](https://openairdocs.org/sdr/9617961146.md): Position Ind · malfunctioned · Aug 15, 1996 · N146US · Doug DC1040 · Landing Gear Position and Warning > DURING TAKEOFF, THE GEAR RETRACTED BUT THE RED GEAR POSITIONS INDICATORS REMAINED ILLUMINATED. RECYCLED GEAR AND THE LIGHT WENT OUT. MAINTENANCE PERFORMED INSPECTIONS AND BITE TESTS, OPERATIONAL CHECK OK. - [SDR 9617951146](https://openairdocs.org/sdr/9617951146.md): Proximity Box · failed · Aug 15, 1996 · N146US · Doug DC1040 · Landing Gear Position and Warning > DURING TAKEOFF, ALL RED GEAR POSITION LIGHTS ILLUMINATED AND THE WARNING HORN SOUNDED WITH THE GEAR HANDLE UP. RECYCLED GEAR BUT LIGHT REMAINED ILLUMINATED UNITL PASSING 10,000 FEET. MAINTENANCE REPLACED THE MAIN LANDING GEAR PROXIMITY BOX. - [SDR 9613101146](https://openairdocs.org/sdr/9613101146.md): Apu · fire · Jun 15, 1996 · N146US · Doug DC1040 · Airborne Auxiliary Power Unit (APU) System > PRIOR TO PUSHBACK, APU TAILPIPE FIRE DEVELOPED. AIRCRAFT APU FIRE BOTTLES WERE DISCHARGED AND FLAMES EXTINGUISHED. THE PASSENGERS WERE DEPLANED THROUGHT THE JETWAY WITHOUT INCIDENT. NO SMOKE WAS PRESENT IN CABIN. MAINTENANCE INSPECTED APU AND SURROUNDING S - [SDR 9608821146](https://openairdocs.org/sdr/9608821146.md): Header · cracked · Apr 17, 1996 · N146US · Doug DC1040 · Fuselage Miscellaneous Structure > DURING L-CHECK, FOUND A.75 INCH CRACK IN THE FORWARD CARGO DOOR CUTOUT UPPER HEADER FS 938. REPAIRED HEADER (P/N ADA0217) PER EA 11-103925. - [SDR 9608811146](https://openairdocs.org/sdr/9608811146.md): Skin · cracked · Apr 17, 1996 · N146US · Doug DC1040 · Elevator, Plate/Skin > DURING L-CHECK, FOUND A.5 INCH CRACK IN THE UPPER SKIN OF THE RIGHT INBOARD ELEVATOR. REPAIRED SKIN PER EA 11-104237. - [SDR 9608791146](https://openairdocs.org/sdr/9608791146.md): Web · cracked · Apr 16, 1996 · N146US · Doug DC1040 · Fuselage Miscellaneous Structure > DURING L-CHECK, FOUND CRACKS IN THE NOSE LANDING GEAR WHEEL WELL LEFT AND RIGHT SIDE WEBS AT FS 495, Z= -64. REPAIRED WEBS (P/N NCA6246-25, -27) PER EA 11-102158. - [SDR 9602801146](https://openairdocs.org/sdr/9602801146.md): Stall Transducer · malfunctioned · Feb 4, 1996 · N146US · Doug DC1040 · Stall Warning System > DURING TAKEOFF, AUTO SLAT WOULD NOT RETRACT AND STICK SHAKER ACTIVATED. DUMPED 16,000 LBS OF FUEL AND RETURNED TO DTW. REPLACED AT/SC COMPUTER (11-2232-9-0001, SN 10201) AND THE NR 1 STALL TRANSDUCER (11-3418-9-0001, SN 00438). - [SDR 9519011146](https://openairdocs.org/sdr/9519011146.md): Compressor · stalled · Nov 23, 1995 · N146US · Doug DC1040 · Turbine Engine Compressor Section > DURING CRUISE, THE NR 2 ENGINE EXPERIENCED A COMPRESSOR STALL WITH THE EGT GOING TO MAX FOR 30 SECONDS. THE ENGINE WAS SHUTDOWN AND THE AIRCRAFT RETURNED TO BOS WHERE AN UNEVENTFUL TWO ENGINE LANDING WAS ACCOMPLISHED. NO FUEL WAS DUMPED. THE AIRCRAFT WAS FE - [SDR 9507371146](https://openairdocs.org/sdr/9507371146.md): Epr Indication · malfunctioned · May 4, 1995 · N146US · Doug DC1040 · Engine Pressure Ratio (EPR) > DURING TAKEOFF ROLL, THE NR 1 ENGINE EPR INDICATION FAILED AND THE TAKEOFF WAS ABORTED. THE EPR INDICATOR WAS REPLACED AND A GROUND RUNUP CONFIRMED PROPER SYSTEM OPERATION. - [SDR 95005701146](https://openairdocs.org/sdr/95005701146.md): Rccb · failed · Apr 12, 1995 · N146US · Doug DC1040 · DC Generating System > DURING PREFLIGHT CHECK, THE AIRCRAFT EMERGENCY POWER FAILED TO TEST. FOUND REMOTE CONTROL CIRCUIT BREAKER (RCCB) B1-189 STUCK OPEN. REPLACED RCCB, OPERATIONAL CHECK OK. - [SDR 9501791146](https://openairdocs.org/sdr/9501791146.md): Intercostal · cracked · Feb 2, 1995 · N146US · Doug DC1040 · Fuselage Miscellaneous Structure > DURING PERIODIC CHECK, A CRACK WAS FOUND ON THE FUSELAGE BELT FRAME TO INTERCOSTAL STRAP AT FS 445, LBL 25 TO THE ACCESS DOOR 115AZ. REPLACED STRAP. - [SDR 9501781146](https://openairdocs.org/sdr/9501781146.md): Floor Beam · cracked · Feb 2, 1995 · N146US · Doug DC1040 · Fuselage Main, Floor Beam > DURING PERIODIC CHECK, A CRACK WAS FOUND ON THE FLOOR BEAM AT FS 879, RBL 29 - 37. REMOVED DAMAGE AND REPAIRED PER EA 11-96621. - [SDR 9501531146](https://openairdocs.org/sdr/9501531146.md): Doubler · corroded · Jan 28, 1995 · N146US · Doug DC1040 · Fuselage Main, Plate/Skin > DURING PERIODIC CHECK, CORROSION WAS FOUND ON THE INNER SKIN STIFFENER AT FS 1156, STR 50L AND 51L. INSTALLED NEW DOUBLER PER EA 11-96638. - [SDR 9501551146](https://openairdocs.org/sdr/9501551146.md): Longeron · corroded · Jan 27, 1995 · N146US · Doug DC1040 · Fuselage Main, Longeron/Stringer > DURING PERIODIC CHECK, CORROSION WAS FOUND ON LONGERON AT STR 44L, FS 1581. INSTALLED REPAIR STRAP PER 11-96601. - [SDR 9501541146](https://openairdocs.org/sdr/9501541146.md): Longeron · cracked · Jan 27, 1995 · N146US · Doug DC1040 · Fuselage Main, Longeron/Stringer > DURING PERIODIC CHECK, A CRACK WAS FOUND ON THE END FITTING AT LONGERON 18R, FS 1988 AND LONGERON 19R, FS 1990. INSTALLED STRAP DOUBLERS PER EA 11-96271. - [SDR 9503181146](https://openairdocs.org/sdr/9503181146.md): Longeron · corroded · Jan 25, 1995 · N146US · Doug DC1040 · Fuselage Main, Longeron/Stringer > DURING PERIODIC CHECK, CORROSION WAS FOUND ON THE LONGERON 44L, FS 1581. REMOVED CORROSION AND INSTALLED DOUBLER PER EA 11-96601. - [SDR 9501281146](https://openairdocs.org/sdr/9501281146.md): Bulkhead Angle · corroded · Jan 23, 1995 · N146US · Doug DC1040 · Fuselage Main, Bulkhead > DURING PERIODIC INSPECTION, CORROSION WAS FOUND ON THE SUPPORT ANGLE OF THE FORWARD BULKHEAD IN THE CENTER WHEEL WELL, AT RBL 10-29. INSTALLED REPAIR ANGLE PER EA 11-93766. - [SDR 9501271146](https://openairdocs.org/sdr/9501271146.md): Skin · corroded · Jan 23, 1995 · N146US · Doug DC1040 · Fuselage Main, Plate/Skin > DURING PERIODIC INSPECTION, CORROSION WAS FOUND ON THE FUSELAGE MOUNTING RINGS UNDER THE FOUR RADIO ALTIMETER ANTENNAS. INSTALLED TITANIUM DOUBLERS PER EA 11-96572. - [SDR 9501261146](https://openairdocs.org/sdr/9501261146.md): Bolt · cracked · Jan 23, 1995 · N146US · Doug DC1040 · Wing, Nacelle/Pylon Attach Fittings > DURING PERIODIC INSPECTION, CRACK INDICATIONS WERE FOUND ON THE WING PYLON TO FRONT SPAR FITTING ATTACH NR 2 LOWER BOLT. REPLACED NR 2 AND NR 4 LOWER BOLTS. - [SDR 9501141146](https://openairdocs.org/sdr/9501141146.md): Bulkhead Support · corroded · Jan 19, 1995 · N146US · Doug DC1040 · Fuselage Main, Bulkhead > DURING PERIODIC INSPECTION, CORROSION WAS FOUND ON THE SUPPORT ANGLE OF THE FORWARD BULKHEAD IN THE CENTER WHEEL WELL AT LBL 19-29. INSTALLED REPAIR ANGLE PER EA 11-93766. - [SDR 9501301146](https://openairdocs.org/sdr/9501301146.md): Longeron · corroded · Jan 12, 1995 · N146US · Doug DC1040 · Fuselage Main, Longeron/Stringer > DURING PERIODIC INSPECTION, CORROSION WAS FOUND IN THE AFT CARGO COMPARTMENT AT FS 1801-1815, STR 44R. REPLACED LONGERON PER EA 11-96636. - [SDR 9500631146](https://openairdocs.org/sdr/9500631146.md): Skin · damaged · Jan 12, 1995 · N146US · Doug DC1040 · Fuselage Main, Plate/Skin > DURING PERIODIC INSPECTION, NON-STANDARD REPAIR WAS FOUND AT FS 515 - 560, STR 24L - 23L. REMOVED DAMAGE AND INSTALLED DOUBLERS PER EA 11-96400. ## 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 = 'N146US' AND deregistration_id = 'N146US-2002-11-01' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/deregistered/N146US-2002-11-01/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.