# Service difficulty reports: N527US, cancelled Feb 12, 2019 A list on [N527US, cancelled Feb 12, 2019](https://openairdocs.org/deregistered/N527US-2019-02-12.md). Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first. - [SDR DALA1137275527](https://openairdocs.org/sdr/DALA1137275527.md): Battery Pack · discharged · May 30, 2011 · N527US · Boeing 757251 · Emergency Lighting > EMERGENCY FLOOR LIGHTING FROM L2 DOOR TO AFT GALLEY REMAIN ON WITH COCKPIT SWITCH IN OFF POSITION. LIGHTS ARE VERY DIM. REPLACED AFT EMERGENCY LIGHTS BATTERY PACK AND POWER SUPPLY AND FWD AND MID EMERGENCY LIGHTS BATTERY PACKS. ALL LIGHTS TESTED NORMAL. - [SDR DALA1018305527](https://openairdocs.org/sdr/DALA1018305527.md): Light · inoperative · Aug 5, 2010 · N527US · Boeing 757251 · Emergency Lighting > DURING A LINE CHECK, MX FOUND THE DOOR 2R EMERGENCY EXIT LIGHT INOPERATIVE. MX REPLACED THE EXIT LIGHT ASSY. OPS CHECK WAS GOOD. - [SDR DALA1016575527](https://openairdocs.org/sdr/DALA1016575527.md): Battery Pack · discharged · Jul 16, 2010 · N527US · Boeing 757251 · Emergency Lighting > EMERGENCY LIGHT MODULES INOPERATIVE AT BOTH AFT DOORS AT LOWER FORWARD CORNER. REPLACED AFT BATTERY PACK. CHECKED GOOD. - [SDR DALA1016575527Q](https://openairdocs.org/sdr/DALA1016575527Q.md): Battery Pack · discharged · Jul 16, 2010 · N527US · Boeing 757251 · Emergency Lighting > EMERGENCY LIGHT MODULES INOPERATIVE AT BOTH AFT DOORS AT LOWER FORWARD CORNER. REPLACED AFT BATTERY PACK. CHECKED GOOD. - [SDR NWAA081365527](https://openairdocs.org/sdr/NWAA081365527.md): Power Supply · inoperative · Apr 1, 2008 · N527US · Boeing 757251 · Emergency Lighting > DURING OVERNIGHT LINE CHECK, FOUND FLOOR TRACK EMERGENCY LIGHTS ROW 33 TO 40 INOP. MAINTENANCE REMOVED AND REPLACED POWER SUPPLY. OPERATIONAL CHECKED GOOD AND AIRCRAFT WAS RETURNED TO SERVICE. - [SDR NWAA080105527](https://openairdocs.org/sdr/NWAA080105527.md): Battery Pack · inoperative · Jan 15, 2008 · N527US · Boeing 757251 · Emergency Lighting > PILOT REPORTED EMERGENCY LIGHTS INOP. MAINTENANCE REMOVED AND REPLACED FORWARD BATTERY PACK. OPERATIONAL CHECKED GOOD AND AIRCRAFT WAS RETURNED TO SERVICE. - [SDR NWAA074285527](https://openairdocs.org/sdr/NWAA074285527.md): Panel · debonded · Dec 18, 2007 · N527US · Boeing 757251 · Horizontal Stabilizer, Plate/Skin > DURING "L" CHECK FOUND RT HORIZONTAL STABILIZER UPPER INBOARD PANEL DISBONDED BETWEEN FSS 83-204. REPAIRED PER EA 55-210445 SECTION I. REPEAT INSPECTIONS REQUIRED PER SECTION II AT INTERVALS NOT MORE THAN 6 MONTHS FOR PERIOD UP TO 24 MONTHS. SECTION III PER - [SDR 0203345527](https://openairdocs.org/sdr/0203345527.md): Floorbeam · cracked · Oct 4, 2002 · N527US · Boeing 757251 · Fuselage Main, Floor Beam > DURING "L" CHECK FOUND CRACK IN FLOORBEAM UPPER CAP AT BS 700 LBL 25. REPAIRED PER EA 55-191542. - [SDR 0203375527](https://openairdocs.org/sdr/0203375527.md): Slide · failed · Sep 30, 2002 · N527US · Boeing 757251 · Escape Slide > WHILE PERFORMING SAMPLING DEPLOYMENT INSPECTION OF DOOR 4R EVACUATION SLIDE, THE LOWER LEFT SUPPORT RIB SEAM RIPPED OPEN. REPLACED THE SLIDE. OPERATIONAL CHECK OK. - [SDR 0202635527](https://openairdocs.org/sdr/0202635527.md): Hydraulic Line · leaking · Aug 11, 2002 · N527US · Boeing 757251 · Hydraulic System, Main > JUST AFTER DEPARTURE FROM MSP, THE AIRCRAFT EXPERIENCED A COMPLETE LOSS OF HYDRAULIC FLUID FROM THE LEFT HYDRAULIC SYSTEM. AN EMERGENCY WAS DECLARED WITH ATC AND THE AIRCRAFT LANDED UNEVENTFULLY AND WAS TOWED FROM THE RUNWAY. REPLACED THE HYDRAULIC LINE AT T - [SDR 0102525527](https://openairdocs.org/sdr/0102525527.md): Control Unit · faulty · Jul 15, 2001 · N527US · Boeing 757200 · AC Power Distribution System > ON DEPARTURE FROM SFO, BOTH ENGINE EPR INDICATIONS WERE ABNORMAL BUT OTHER ENGINE INSTRUMENTS WERE WITHIN PARAMETERS. DURING CLIMB, STATUS MESSAGES APPEARED FOR BOTH ENGINE OIL COOLERS AND REVERSER CONTROL VALVES. THE FLIGHT RETURNED TO SFO AND LANDED WITHOU - [SDR 0004665527](https://openairdocs.org/sdr/0004665527.md): Fire Detector · Dec 30, 2000 · N527US · Boeing 757251 · Fire Detection > WHEN STARTING THE LEFT ENGINE THE LEFT FIRE WARNING OCCURRED. FIRE WARNING STOPPED WHEN ENGINE FUEL CONTROL WAS PLACED TO 'CUTOFF'. AIRCRAFT RETURNED TO THE GATE. MAINTENANCE REPLACED THE LEFT ENGINE CORE UPPER AND LOWER FIRE DETECTORS. OPERATIONAL CHECK O - [SDR 9902135527](https://openairdocs.org/sdr/9902135527.md): Control Mixer · malfunctioned · Jun 18, 1999 · N527US · Boeing 757251 · Aileron Control System > EN ROUTE DTW-SFO CLIMBING THROUGH FL180, CREW REPORTED UNCOMMANDED RIGHT AILERON MOVEMENT. AN EMERGENCY WAS DECLARED. THE FLIGHT DIVERTED TO ORD AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED THE LATERAL CONTROL MIXER AND RIGGED THE AILERON CONTROL SYSTEM - [SDR 9902065527](https://openairdocs.org/sdr/9902065527.md): Valve · failed · Jun 13, 1999 · N527US · Boeing 757251 · Cabin Pressure Control System > DURING DESCENT INTO DTW, THE CABIN ALTITUDE WARNING HORN SOUNDED. CABIN ALTITUDE WAS 10,000 FEET. AN EMERGENCY DESCENT WAS INITIATED FROM FL240 TO 10,000 FEET. FLIGHT CONTINUED TO DTW AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED BOTH PRESSURE RELIEF V - [SDR 9508325527](https://openairdocs.org/sdr/9508325527.md): Skin · cracked · May 17, 1995 · N527US · Boeing 757251 · Nacelle/Pylon, Plate/Skin > DURING PERIODIC CHECK, FOUND A ONE INCH CRACK IN THE NR 1 ENGINE NACELLE STRUT SKIN PANEL, NACELLE STA 115. REPAIRED PANEL P/N 311N3450-11, -13, -15 PER EA 55-98479. - [SDR 9508135527](https://openairdocs.org/sdr/9508135527.md): Floorbeam · corroded · May 16, 1995 · N527US · Boeing 757251 · Fuselage Main, Floor Beam > DURING PERIODIC CHECK, FOUND CORROSION ON THE FLOORBEAM UPPER CHORD FS 365. REPAIRED PER EA 55-98478. - [SDR 9503055527](https://openairdocs.org/sdr/9503055527.md): Cooling Fan · failed · Feb 24, 1995 · N527US · Boeing 757251 · Air Distribution Fan > A STRONG ELECTRICAL BURNING SMELL WAS NOTICED IN THE COCKPIT. FOLLOWED COCKPIT OPERATING PROCEDURE AND SMELL WAS EVACUATED, SOURCE WAS UNKNOWN. FOUND THE FORWARD EQUIPMENT COOLING SUPPLY FAN CIRCUIT BREAKER POPPED, AND WAS UNABLE TO RESET. REPLACED FORWARD ## 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 = 'N527US' AND deregistration_id = 'N527US-2019-02-12' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/deregistered/N527US-2019-02-12/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.