# Service difficulty reports: N427MQ, cancelled May 12, 1998 A list on [N427MQ, cancelled May 12, 1998](https://openairdocs.org/deregistered/N427MQ-1998-05-12.md). Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first. - [SDR SIMA980532](https://openairdocs.org/sdr/SIMA980532.md): Bulb · failed · Feb 22, 1998 · N427MQ · Aerosp ATR42300 · Emergency Lighting > ORD - FLT 4005 - A COUPLE OF EMERGENCY EXIT (PATH LIGHTS) ON FLOOR OUT. REPLACED BULBS, OPS CHECK GOOD. AIRCRAFT RETURNED TO SERVICE. (M) - [SDR SIMA980181](https://openairdocs.org/sdr/SIMA980181.md): Harness · shorted · Jan 18, 1998 · N427MQ · Aerosp ATR42300 · Propeller Controlling System > AZO - FLT 4171 - EN ROUTE TO GRR FROM ORD, THE RT PROP MOVED TO FEATHER UNCOMMANDED. THE ENG WAS SHUT DOWN AND A/C DIVERTED TO AZO AND LANDED WITHOUT INCIDENT. CREW DID NOTE TORQUE IND WAS AT MAX AT THE TIME THE UNCOMMANDED FEATHER OCCURRED. MX FOUND A CHAF - [SDR SIMA973591](https://openairdocs.org/sdr/SIMA973591.md): Lamp · failed · Dec 25, 1997 · N427MQ · Aerosp ATR42300 · Emergency Lighting > ORD - FLT 4062 - FLOOR PROX EMERGENCY ESCAPE PATH MARKING LIGHT INOP. MID CABIN LIGHT STRIP. ISSUED MEL AND RETURNED A/C TO SERVICE. RAI LAMP ASSY IN LIGHT STRIP, PER JIC 33-51-21. PERFORMED OPERATIONAL CHECK SATISFACTORILY. A/C RETURNED TO SERVICE. (M) - [SDR SIMA973431](https://openairdocs.org/sdr/SIMA973431.md): Bulb · failed · Dec 9, 1997 · N427MQ · Aerosp ATR42300 · Emergency Lighting > ORD - FLT 4169 - EMERGENCY LIGHTS ON FLOOR OUT, AFT CABIN. RAI'D LIGHT BULBS (3) AFT SECTION AND RESOLDERED WIRES. OPS CHECKED GOOD. A/C RETURNED TO SERVICE. (M) - [SDR SIMA972641](https://openairdocs.org/sdr/SIMA972641.md): Transformer · failed · Sep 21, 1997 · N427MQ · Aerosp ATR42300 · Passenger Compartment Lighting > ORD - FLT 4364 - BURNED PLASTIC SMELL COMING FROM ROW 10AB. TROUBLESHOT DISCREPANCY, FOUND READING LIGHT POWER UNIT TRANSFORMER BURNED. RAI'D PER ATR 42 AMM 33-12-10. OPS CHECK GOOD. AIRCRAFT WAS RETURNED TO SERVICE. (M) - [SDR SIMA972181](https://openairdocs.org/sdr/SIMA972181.md): Bulb · failed · Aug 6, 1997 · N427MQ · Aerosp ATR42300 · Emergency Lighting > ORD - FLT 4127 - FLOOR EMERGENCY LIGHTS INOP AT ROWS 3 AND 10, ITEM MEL'D AS PER 33-22 AUTH NR 080087 CAT C. RAI'D LIGHT BULBS (P/N 7012210/16706) AND OPS CHECK GOOD. AIRCRAFT WAS RETURNED TO SERVICE. (M) - [SDR SIMA972172](https://openairdocs.org/sdr/SIMA972172.md): Bulbs · failed · Aug 5, 1997 · N427MQ · Aerosp ATR42300 · Emergency Lighting > ONE INOP EMERGENCY LIGHT ON AIRSTAIR DOOR, INOP LIGHT ON STRIP LIGHTING NEAR ROW 3. RAI'D BULBS, P/N 7012210/167006. OPS CHECK GOOD. AIRCRAFT WAS RETURNED TO SERVICE. (M) - [SDR SIMA963631](https://openairdocs.org/sdr/SIMA963631.md): Light · failed · Dec 28, 1996 · N427MQ · Aerosp ATR42300 · Emergency Lighting > ORD - FLT 4341 - EMERGENCY LIGHT ON STAIR AND CABIN EMERGENCY LIGHTS INOP. RAI'D EMERGENCY LIGHT ASSEMBLY FOR AIRSTAIR LIGHT AND BATTERY PACKS 10WL, 15WL AND 18WL. OPERATIONAL CHECK SATISFACTORY AIRCRAFT RTS. AIRCRAFT WAS RETURNED TO SERVICE. (M) - [SDR 97ZZZM80](https://openairdocs.org/sdr/97ZZZM80.md): Battery Pack · discharged · Dec 28, 1996 · N427MQ · Aerosp ATR42300 · Emergency Lighting > ORD - FLT 4341 - EMERGENCY LIGHT ON STAIR AND CABIN EMERGENCY LIGHTS INOP. RAI'D EMERGENCY LIGHT ASSEMBLY FOR AIRSTAIR LIGHT AND BATTERY PACKS 10WL, 15WL AND 18WL. OPERATIONAL CHECK SATISFACTORY AIRCRAFT RTS. AIRCRAFT WAS RETURNED TO SERVICE. (M) - [SDR SIMA962901](https://openairdocs.org/sdr/SIMA962901.md): Wire · broken · Oct 16, 1996 · N427MQ · Aerosp ATR42300 · Light System Wiring > ORD - FLT 4309 - EMERGENCY EXIT STAIR LIGHT INOP. REPAIRED BROKEN WIRE ON CANNON PLUG ON PASSENGER DOOR. OPS CHECK GOOD. AIRCRAFT WAS RETURNED TO SERVICE. (M) - [SDR SIMA962871](https://openairdocs.org/sdr/SIMA962871.md): Power Supply · failed · Oct 13, 1996 · N427MQ · Aerosp ATR42300 · Emergency Lighting > ORD - FLT 4045 - THREE FLOOR EMERGENCY LIGHTS INOP AND BOTH FORWARD CABIN EMERGENCY EXITS BOTTOM LIGHTS INOP. RAI'D BATTERY PACK IN POWER SUPPLY 34WL. OPS CHECK GOOD. AIRCRAFT WAS RETURNED TO SERVICE. (M) - [SDR SIMA962223](https://openairdocs.org/sdr/SIMA962223.md): Wire · broken · Aug 9, 1996 · N427MQ · Aerosp ATR42300 · Light System Wiring > ORD - FLT 4003 - FOUND EMERGENCY LIGHT AT AIRSTAIRS INOP. REPAIRED BROKEN WIRE UNDER AIRSTAIRS. OPS CHECK GOOD. AIRCRAFT WAS RETURNED TO SERVICE. (M) - [SDR SIMA962122](https://openairdocs.org/sdr/SIMA962122.md): Light · failed · Jul 30, 1996 · N427MQ · Aerosp ATR42300 · Emergency Lighting > ORD - FLT 4137 - FOUND ENTRANCE DOOR EMERGENCY LIGHT INOP. REMOVED AND REPLACED EMERGENCY LIGHT ASSY. OPS CHECK GOOD. AIRCRAFT WAS RETURNED TO SERVICE. (M) - [SDR SIMA961221](https://openairdocs.org/sdr/SIMA961221.md): Ballast · failed · May 1, 1996 · N427MQ · Aerosp ATR42300 · Passenger Compartment Lighting > MSN - FLT 4046 - AFTER DEPARTURE FROM MSN THE PASSENGERS AND CREW DETECTED AN ELECTRICAL SMOKE SMELL IN THE CABIN, AIRCRAFT RETURNED TO MSN AND CFR RESPONED. INSPECTED AND FOUND THE LIGHT BALLAST FOR THE FORWARD LATERAL LIGHTS WAS THE SOURCE OF THE ODOR. RAI - [SDR SIMA960941](https://openairdocs.org/sdr/SIMA960941.md): Wire · broken · Apr 3, 1996 · N427MQ · Aerosp ATR42300 · Light System Wiring > ORD - REPAIRED WIRING TO AIRSTAIR EMERGENCY LIGHT. AIRCRAFT RETURNED TO SERVICE. (M) - [SDR SIMA952201](https://openairdocs.org/sdr/SIMA952201.md): Eel · broken · Aug 8, 1995 · N427MQ · Aerosp ATR42300 · Emergency Lighting > ORD - FLT NR 4369 - WHILE DOING THE INITIAL INSPECTION OF THE AIRCRAFT, THE CREW NOTED THE PASSENGER STAIR EMERGENCY LIGHT WAS INOP. MAINTENANCE FOUND A PIN CONNECTOR DAMAGED ON THE LIGHT ASSY. MAINTENANCE REPLACED THE LIGHT ASSY. OPS CHECK GOOD. AIRCRAFT - [SDR SIMA951501](https://openairdocs.org/sdr/SIMA951501.md): Harness · chafed · May 30, 1995 · N427MQ · Aerosp ATR42300 · Fuel Controlling System > ORD - FLT 4047 - NR 1 ECU FAULTED IN FLIGHT. REMOVED AND REPLACED NR 1 ENGINE HARNESS. OPS CHECK ON GROUND GOOD, IAW JIC 73-23-61 RUNUP PROCEDURES. AIRCRAFT RETURNED TO SERVICE. (W) - [SDR SIMA951395](https://openairdocs.org/sdr/SIMA951395.md): Crank Assy · worn · May 19, 1995 · N427MQ · Aerosp ATR42300 · Aileron Control System > MQT - DURING BRIDGE INSPECTION, MAINTENANCE FOUND THE LEFT AILERON HINGE POINT TO HAVE A BAD BEARING. MAINTENANCE REMOVED AND REPLACED THE LEFT AILERON MIDDLE HINGE ASSY. A FUNCTIONAL CHECK OF THE AILERONS WAS COMPLIED WITH IAW ATR 42 J/C 27-10-00. AIRCRAFT - [SDR SIMA951394](https://openairdocs.org/sdr/SIMA951394.md): Shackle Assy · worn · May 19, 1995 · N427MQ · Aerosp ATR42300 · Aileron Control System > MQT - DURING BRIDGE INSPECTION, MAINTENANCE FOUND THE LEFT AILERON OUTBOARD HINGE TO HAVE EXCESSIVE PLAY. MAINTENANCE REMOVED AND REPLACED THE OUTBOARD SHACKLE ASSY ON THE LEFT AILERON. A FUNCTIONAL CHECK OF THE AILERONS WAS COMPLIED WITH IAW ATR 42 J/C 27-1 - [SDR SIMA951393](https://openairdocs.org/sdr/SIMA951393.md): Shackle Assy · worn · May 19, 1995 · N427MQ · Aerosp ATR42300 · Aileron Control System > MQT - DURING BRIDGE INSPECTION, MAINTENANCE FOUND THE RIGHT AILERON OUTBOARD HINGE TO HAVE EXCESSIVE PLAY. MAINTENANCE REMOVED AND REPLACED THE OUTBOARD SHACKLE ASSY ON THE RIGHT AILERON. A FUNCTIONAL CHECK OF THE AILERONS WAS COMPLIED WITH IAW ATR 42 J/C 27 - [SDR SIMA951392](https://openairdocs.org/sdr/SIMA951392.md): Bellcrank · binding · May 19, 1995 · N427MQ · Aerosp ATR42300 · Aileron Control System > MQT - DURING BRIDGE INSPECTION AND COMPLIANCE OF EO E9-2700-001, MAINTENANCE FOUND CENTER WING BOX RIGHT AILERON BELLCRANK FORWARD BEARING BINDING. MAINTENANCE REMOVED AND INSPECTED BELLCRANK ASSEMBLY AND COMPLIED WITH FUNCTIONAL CHECK OF AILERON SYSTEM IAW A - [SDR SIMA951391](https://openairdocs.org/sdr/SIMA951391.md): Bellcrank · corroded · May 19, 1995 · N427MQ · Aerosp ATR42300 · Aileron Control System > MQT - DURING BRIDGE INSPECTION AND COMPLIANCE OF EO E9-2700-001, MAINTENANCE FOUND THE RIGHT AILERON BELLCRANK (INBOARD) AFT BEARING RUSTED AND BINDING. MAINTENANCE REMOVED AND INSPECTED BELLCRANK ASSEMBLY AND COMPLIED WITH FUNCTIONAL CHECK OF AILERON SYSTEM ## 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 = 'N427MQ' AND deregistration_id = 'N427MQ-1998-05-12' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/deregistered/N427MQ-1998-05-12/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.