# Service difficulty reports: N626US, cancelled Jul 7, 2017 A list on [N626US, cancelled Jul 7, 2017](https://openairdocs.org/deregistered/N626US-2017-07-07.md). Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first. - [SDR 0202626626](https://openairdocs.org/sdr/0202626626.md): Fitting · loose · Aug 12, 2002 · N626US · Boeing 747251B · Hydraulic System, Main > DURING CLIMB, LOST FLUID FROM THE NR 4 HYDRAULIC SYSTEM AND THE OUTBOARD FLAPS DID NOT RETRACT. DECLARED AN EMERGENCY AND THE AIRCRAFT RETURNED TO NRT AND LANDED WITHOUT INCIDENT. TIGHTENED A FLEXIBLE HYDRAULIC PRESSURE LINE FITTING ON AFT SIDE OF THE ENGINE - [SDR 0201106626](https://openairdocs.org/sdr/0201106626.md): Odor · defective · Apr 2, 2002 · N626US · Boeing 747251B · Air Distribution System > DURING FLIGHT, AN ELECTRICAL FUME EMITTED ON THE RIGHT SIDE OF ZONE 'D'. PULLED CIRCUIT BREAKER AND AIRCRAFT CONTINUED TO DESTINATION AND LANDED WITHOUT INCIDENT. VISUALLY INSPECTED AND OPERATIONALLY CHECKED ZONE 'D' WITH NO FAULTS FOUND. - [SDR 0103176626](https://openairdocs.org/sdr/0103176626.md): Smoke · detected · Sep 4, 2001 · N626US · Boeing 747251B · Buffet/Galleys > DURING CRUISE, NOTICED SMOKE BEHIND OVEN IN E-ZONE GALLEY. INSPECTED AND OPERATED OVENS AND PASSENGER ENTERTAINMENT EQUIPMENT. NO TROUBLE FOUND. ALL EQUIPMENT OPERATED NORMALLY AND NO EVIDENCE OF SMOKE. - [SDR 0102686626](https://openairdocs.org/sdr/0102686626.md): Circuit Board · faulty · Jul 29, 2001 · N626US · Boeing 747251B · Fire Detection > DURING CRUISE, THE WHEEL WELL FIRE DETECTION LIGHT, BELL, AND MASTER CAUTION CAME ON. AIRCRAFT RETURNED TO SEA AND AND LANDED WITHOUT INCIDENT. REPLACED THE FIRE DETECTION AND WARNING CARDS A9 AND A17, AND RIGHT SEGMENT OF FIRE DETECTOR M694. OPERATIONAL CH - [SDR 0102186626](https://openairdocs.org/sdr/0102186626.md): Separator · odor · Jun 16, 2001 · N626US · Boeing 747251B · Humidity Control System > DURING TAXI OUT, FLIGHT ATTENDANT AND PASSENGER SMELLED BURNING IN VICINITY OF DOOR 3 AISLE. RETURNED TO GATE WITHOUT INCIDENT. INSPECTED FORWARD CARGO COMPARTMENT, GALLEYS, LAVS, CABIN, SEATBOXES, WIRE BUNDLES, CALL LIGHTS, READING LIGHTS, SIDEWALL, CEILING - [SDR 0102056626](https://openairdocs.org/sdr/0102056626.md): Spar · corroded · May 22, 2001 · N626US · Boeing 747251B · Wing Spar > During L-check found corrosion on Rt wing front spar web at OLES 1381 outboard and behind stiffener. Repaired per EA 66-183239. - [SDR 0101866626](https://openairdocs.org/sdr/0101866626.md): Light · inoperative · May 19, 2001 · N626US · Boeing 747251B · Emergency Lighting > DURING LINE CHECK, FOUND CABIN CEILING EMERGENCY LIGHTS INOPERATIVE AT SEAT 55GH, 16FJ, AND 65CD. REPLACED LIGHT ASSEMBLIES. OPERATIONAL CHECK NORMAL. - [SDR 0101526626](https://openairdocs.org/sdr/0101526626.md): Battery Pack · discharged · Apr 17, 2001 · N626US · Boeing 747251B · Emergency Lighting > DURING LINE CHECK, MAINTENANCE FOUND ZONE-D EMERGENCY ESCAPE PATH LIGHTING INOPERATIVE. REPLACED ZONE-D BATTERY PACK. OPERATIONAL CHECK NORMAL. - [SDR 0101276626](https://openairdocs.org/sdr/0101276626.md): Smoke · detected · Mar 31, 2001 · N626US · Boeing 747251B · Entertainment System > DURING FLIGHT, THE FLIGHT ATTENDANT SMELLED SMOKE IN FORWARD GALLEY ENTERTAINMENT CENTER AREA. SMOKE AND FUMES WERE COMING FROM PASSENGER ENTERTAINMENT SYSTEM. REMOVED POWER FROM SYSTEM AND DIVERTED TO ANC AND LANDED WITHOUT INCIDENT. REMOVED THE NR 1 AND N - [SDR 0101196626](https://openairdocs.org/sdr/0101196626.md): Floorbeam · cracked · Mar 4, 2001 · N626US · Boeing 747251B · Fuselage Main, Floor Beam > DURING LINE CHECK FOUND CRACK ON FLOORBEAM LOWER CHORD AT BS 1900 RBL 110. REPAIRED PER EA 66-181515. - [SDR 0002236626](https://openairdocs.org/sdr/0002236626.md): Electrical Box · failed · Jun 26, 2000 · N626US · Boeing 747251B · Flight Compartment Lighting > ENROUTE TO LAX, THERE WAS A STRONG ELECTRICAL ODOR IN THE AREA OF ROW 24L. PES WAS TURNED OFF IN THE COCKPIT AND THE ODOR DISSIPATED. PRIOR TO ODOR, THE READING LIGHTS IN THAT AREA FAILED. THE FLIGHT ATTENDANT RESET THE PSS BUTTON. THE AIRCRAFT CONTINUED TO LA - [SDR 9905706626](https://openairdocs.org/sdr/9905706626.md): Spar · corroded · Dec 15, 1999 · N626US · Boeing 747251B · Wing Spar > DURING M CHECK, FOUND CORROSION ON FRONT SPAR LOWER SURFACE OF THE LOWER CHORD. REPAIRED PER EA 66-171325. - [SDR 9905696626](https://openairdocs.org/sdr/9905696626.md): Doubler · cracked · Dec 8, 1999 · N626US · Boeing 747251B · Fuselage Miscellaneous Structure > DURING M CHECK, FOUND CRACK ON DOUBLER LOCATED ON THE LOWER FLOOR STRUCTURE KEEL BEAM BOX INTERIOR. REPAIRED PER EA 66-171527. - [SDR 9905716626](https://openairdocs.org/sdr/9905716626.md): Floorbeam · corroded · Nov 30, 1999 · N626US · Boeing 747251B · Fuselage Main, Floor Beam > DURING M CHECK, FOUND CORROSION BETWEEN T CHORD AND WEB AT FLOOR LEVEL. REPAIRED PER EA 66-171436. - [SDR 9905646626](https://openairdocs.org/sdr/9905646626.md): Spar · corroded · Nov 15, 1999 · N626US · Boeing 747251B · Wing Spar > DURING M CHECK, FOUND CORROSION ON LOWER SPAR CAP OF WING LEADING EDGE CAVITY AT FSSI 1445. REPAIRED PER EA 66-173191. - [SDR 9905666626](https://openairdocs.org/sdr/9905666626.md): Flange · corroded · Nov 11, 1999 · N626US · Boeing 747251B · Fuselage, Seat/Cargo Attach Fittings > DURING M CHECK, FOUND CORROSION ON SEAT TRACK INBOARD FLANGE AT FS 1170 - 1220, RBL 98. REPAIRED PER EA 66-171435. - [SDR 9903796626](https://openairdocs.org/sdr/9903796626.md): Battery Pack · discharged · Sep 12, 1999 · N626US · Boeing 747251B · Emergency Lighting > DURING LINE CHECK, FOUND E ZONE FLOOR PATH EMERGENCY LIGHTS INOPERATIVE. CHARGED SYSTEM, OPERATIONAL CHECK GOOD. - [SDR 9811176626](https://openairdocs.org/sdr/9811176626.md): Power Supply · inop · Sep 18, 1998 · N626US · Boeing 747251B · Emergency Lighting > DURING LINE CHECK, FOUND B ZONE FLOOR PATH EMERGENCY LIGHTS INOPERATIVE. REPLACED POWER SUPPLY, OPERATIONAL CHECK GOOD. - [SDR 9809376626](https://openairdocs.org/sdr/9809376626.md): Sensors · dirty · May 26, 1998 · N626US · Boeing 747251B · Landing Gear Door Retract Section > DURING CLIMB, THE NOSE LANDING GEAR DOOR DID NOT CLOSE AFTER LANDING GEAR RETRACTION. RECYCLED THE LANDING GEAR AND THE DOOR CLOSED. AIRCRAFT CONTINUED TO LAX AND LANDED WITHOUT INCIDENT. CLEANED THE NOSE LANDING GEAR DOOR SENSORS, OPERATIONAL CHECK GOOD. - [SDR 9712926626](https://openairdocs.org/sdr/9712926626.md): Sill · cracked · Jul 1, 1997 · N626US · Boeing 747251B · Fuselage Miscellaneous Structure > DURING PERIODIC CHECK, FOUND A CRACK IN MAIN ENTRY DOOR 1L UPPER SILL CHORD FS 460. REPAIRED PER EA 66-151097. - [SDR 9623206626](https://openairdocs.org/sdr/9623206626.md): Oxygen Syst · leaking · Oct 31, 1996 · N626US · Boeing 747251B · Crew Oxygen System > DURING CRUISE, THE FLIGHT CREW'S OXYGEN DEPLETED. AIRCRAFT DIVERTED TO ANC AND LANDED WITHOUT INCIDENT. REPLACED THE CREW OXYGEN CYLINDER, CAPTAIN'S OXYGEN MASK AND FIRST OBSERVER'S OXYGEN PANEL, OPERATIONAL CHECK GOOD. - [SDR 9622616626](https://openairdocs.org/sdr/9622616626.md): Battery · discharged · Oct 23, 1996 · N626US · Boeing 747251B · Emergency Lighting > DURING LINE CHECK, FOUND A-ZONE FLOOR PATH AND STAIR EMERGENCY LIGHTS INOPERATIVE. REPLACED BATTERY, OPERATIONAL CHECK GOOD. - [SDR 9613756626](https://openairdocs.org/sdr/9613756626.md): Battery Pack · discharged · Jun 21, 1996 · N626US · Boeing 747251B · Emergency Lighting > DURING LINE CHECK, FOUND EMERGENCY LIGHTS BY DOORS 1L, 4L, 5L AND 5R INOPERATIVE. REPLACED TWO BATTERY PACKS AND TWO LIGHT ASSEMBLIES, OPERATIONAL CHECK GOOD. - [SDR 9602546626](https://openairdocs.org/sdr/9602546626.md): Gear Handle · lack of lube · Jan 31, 1996 · N626US · Boeing 747251B · Landing Gear Selector > DURING APPROACH, THE LANDING GEAR UNSAFE LIGHT REMAINED ILLUMINATED AFTER LANDING GEAR EXTENSION. EXECUTED GO-AROUND AND RECYCLED THE LANDING GEAR AND THE LIGHT EXTINGUISHED. AIRCRAFT LANDED WITHOUT INCIDENT. FOUND LANDING GEAR CONTROL HANDLE STICKING. LUB - [SDR 9510246626](https://openairdocs.org/sdr/9510246626.md): Nr 1 Ac/Dc Bus · elect smoke · Jun 30, 1995 · N626US · Boeing 747251B · AC Generation System > DURING CRUISE, A BURNING ELECTRICAL SMOKE WAS DETECTED IN THE COCKPIT. THE CREW FOLLOWED PROCEDURES AND ISOLATED THE NR 1 GENERATOR, DUE TO HIGH LOAD AND ISOLATED THE NR 1 AC AND DC BUS, THE SMOKE DISSIPATED. AIRCRAFT CONTINUED WITHOUT FURTHER INCIDENT. PER - [SDR 9509526626](https://openairdocs.org/sdr/9509526626.md): Engine · failed · Jun 16, 1995 · N626US · Boeing 747251B · Engine (Turbine/Turboprop) > DURING CLIMB, THE NR 3 ENGINE DEVELOPED LOW EPR, N1 AND FUEL FLOW WITH HIGH EGT. THE ENGINE HAD NO RESPONSE TO POWER LEVER MOVEMENT. THE AIRCRAFT BEGAN A RETURN TO NRT, DUMPING 170,000 LBS OF FUEL. DURING DESCENT, THE ENGINE EXPERIENCED A COMPRESSOR STALL A - [SDR 9502046626](https://openairdocs.org/sdr/9502046626.md): Fire Loop · malfunctioned · Feb 9, 1995 · N626US · Boeing 747251B · Fire Detection > DURING FINAL APPROACH, THE APU FIRE LIGHT ILLUMINATED AND BELL SOUNDED. THE FIRE BOTTLE WAS DISCHARGED. INSPECTION FOUND NO SIGN OF FIRE AND THE BOTTLE WAS REPLACED. TROUBLESHOOTING FOUND THE FIRE WARNING LOOP 'A' TO BE AT FAULT. THE ELEMENT WAS REPLACED A ## 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 = 'N626US' AND deregistration_id = 'N626US-2017-07-07' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/deregistered/N626US-2017-07-07/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.