# Service difficulty reports: N423MA, cancelled Dec 7, 2023 A list on [N423MA, cancelled Dec 7, 2023](https://openairdocs.org/deregistered/N423MA-2023-12-07.md). Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first. - [SDR JIKA2019020301](https://openairdocs.org/sdr/JIKA2019020301.md): Mixing Valve · defective · Feb 3, 2019 · N423MA · Swrngn SA227AC · Cabin Cooling System > THE PILOT REPORTED AFTER TAKEOFF THAT THE COCKPIT FILLED WITH SMOKE. AFTER TURNING THE ACM SELECTOR SWITCH TO THE OFF AND COLD POSITION, THE HEAT POSITION STAYED ON. THE PILOT RETURNED TO DEPARTURE AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED AND FOUND - [SDR JIKA2018101401](https://openairdocs.org/sdr/JIKA2018101401.md): Tire · damaged · Oct 14, 2018 · N423MA · Swrngn SA227AC · Tire > PILOT REPORTED WHILE ENROUTE FROM KBUF TO CYUL, THE CENTER HAD CONTACTED HIM REGARDING A PIECE OF RUBBER FOUND ON THE DEPARTING RUNWAY IN KBUF. REQUESTED A LOW FLY BY TO SEE IF ANY OBVIOUS SIGNS OF DAMAGE COULD BE SEEN, THE GEAR AND WHEELS APPEARED DOWN AND LO - [SDR JIK2008F00003](https://openairdocs.org/sdr/JIK2008F00003.md): Accumulator · failed · Jul 3, 2008 · N423MA · Swrngn SA227AC · Hydraulic Power Accumulator, Main > AFTER TAKEOFF, BOTH HYDRAULIC PRESSURE LIGHTS CAME ON RIGHT AFTER GEAR RETRACTION. PILOT DECLARED AN EMERGENCY, CONDUCTED AN EMERGENCY GEAR EXTENSION PROCEDURE, AND MADE A LANDING WITHOUT FURTHER INCIDENT. UPON EXAMINATION, IT WAS DISCOVERED THAT THE HYDRAULIC - [SDR JIK2008F00002](https://openairdocs.org/sdr/JIK2008F00002.md): Accumulator · failed · Jul 3, 2008 · N423MA · Swrngn SA227AC · Hydraulic System, Main > FOLLOWING TAKEOFF, BOTH HYDR PRESSURE LIGHTS CAME ON RIGHT AFTER GEAR RETRACTION. PILOT DECLARED AN EMERGENCY, CONDUCTED AN EMERGENCY GEAR EXTENSION PROCEDURE, MADE A LANDING WITHOUT FURTHER INCIDENT. UPON EXAMINATION, IT WAS DISCOVERED THAT HYDR ACCUMULATOR - [SDR MALA975305](https://openairdocs.org/sdr/MALA975305.md): Switch · lack of lube · Jan 28, 1997 · N423MA · Swrngn SA227AC · Landing Gear Position and Warning > FLT 3099 - ON FINAL APPROACH INTO MSP, NO NOSE GEAR GREEN DOWN LIGHT SLOW TO ILLUMINATE. AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE CLEANED AND LUBED SWITCHES, COMPLETED SEVERAL GEAR SWINGS. INDICATION SYSTEMS OPS CHECK GOOD. (M) - [SDR MALA965161](https://openairdocs.org/sdr/MALA965161.md): Frame · cracked · Oct 3, 1996 · N423MA · Swrngn SA227AC · Fuselage Main, Frame > DURING A BLOCK INSPECTION IN MSP, THE LEFT BELT FRAME, FS 242, WL 75.32 WAS FOUND TO BE CRACKED AT THE RELIEF RADIUS, OUTBOARD OF PANEL 403. (M) - [SDR MALA965160](https://openairdocs.org/sdr/MALA965160.md): Frame · cracked · Oct 3, 1996 · N423MA · Swrngn SA227AC · Fuselage Main, Frame > DURING A BLOCK INSPECTION IN MSP, THE RIGHT BELT FRAME AT FS 332, WL 75.32 WAS FOUND TO BE CRACKED AT THE RELIEF RADIUS, OUTBOARD OF PANEL 406. (M) - [SDR MALA965159](https://openairdocs.org/sdr/MALA965159.md): Frame · cracked · Oct 3, 1996 · N423MA · Swrngn SA227AC · Fuselage Main, Frame > DURING A BLOCK INSPECTION IN MSP, THE RIGHT BELT FRAME AT FS 317 WL 75.32 WAS FOUND TO BE CRACKED AT THE RELIEF RADIUS, OUTBOARD OF PANEL 406. (M) - [SDR MALA965142](https://openairdocs.org/sdr/MALA965142.md): Skin · chafed · Sep 18, 1996 · N423MA · Swrngn SA227AC · Cargo/Baggage Doors > DURING A SCHEDULED INSPECTION IN MSP, MAINTENANCE FOUND THE AFT UPPER CARGO DOOR SKIN JUST FORWARD OF FS 491 CHAFED APPROX.50 INCH. CHAFED DAMAGE CAUSED FROM CARGO DOOR HINGE PIN END, HINGE PIN LENGTH DETERMINED TO BE TOO LONG. CARGO SKIN AREA REPAIR IAW FA - [SDR MALA965141](https://openairdocs.org/sdr/MALA965141.md): Skin · oversized holes · Sep 18, 1996 · N423MA · Swrngn SA227AC · Fuselage Main, Plate/Skin > DURING A SCHEDULED INSPECTION IN MSP, AFTER REMOVAL OF AFT LOWER CARGO DOOR FRAME FILLET, P/N 27-24082-9003 AT FS 491, MAINTENANCE FOUND THE FUSELAGE SKIN RIVET HOLES TO BE OVERSIZED (CARGO DOOR SURROUND SKIN). REMOVED AND REPLACED THE AFT LOWER SKIN SECTION - [SDR MALA965140](https://openairdocs.org/sdr/MALA965140.md): Skin · chafed · Sep 18, 1996 · N423MA · Swrngn SA227AC · Fuselage Main, Plate/Skin > DURING SCHEDULED INSPECTION IN MSP, MAINTENANCE FOUND CHAFE DAMAGE AT FS 241 AND ON BOTH SIDES OF BL 0. CHAFE DAMAGE IS APPROX.025 DEEP AND.125 INCH IN DIAMETER. FABRICATED AND INSTALLED AN EXTERNAL REPAIR DOUBLER (.050 INCH AND 4 INCH BY 5 INCH) IAW FAC S - [SDR MALA965135](https://openairdocs.org/sdr/MALA965135.md): Door Frame · cracked · Sep 17, 1996 · N423MA · Swrngn SA227AC · Fuselage Miscellaneous Structure > DURING BLOCK INSPECTION IN MSP, MAINTENANCE COMPLETED REPAIR TO FUSELAGE FORWARD CARGO DOOR FRAME P/N 27-22085 AT FS 438 DUE TO.250 INCH CRACK NOTED IN AREA OF THE DOOR GAS STRUT SUPPORT LOWER MOUNT HOLE. REMOVED CRACKED AREA AND INSTALLED REPAIR DOUBLERS IA - [SDR MALA964894](https://openairdocs.org/sdr/MALA964894.md): Retract Mech · lack of lube · Feb 29, 1996 · N423MA · Swrngn SA227AC · Landing Gear Retraction/Extension System > DTW - FLT 3386 - ON APPROACH TO DTW THE NOSE GEAR WAS SLOW TO SHOW DOWN AND LOCKED AFTER GEAR EXTENSION. MAINTENANCE WAS UNABLE TO DUPLICATE THE DISCREPANCY. AS A PRECAUTION, THE NOSE GEAR AND POSITION SWITCHES WERE CLEANED AND LUBED. (X) - [SDR MALA964840](https://openairdocs.org/sdr/MALA964840.md): Frame · cracked · Jan 24, 1996 · N423MA · Swrngn SA227AC · Passenger/Crew Doors > DURING A SCHEDULED INSPECTION IN MSP, MAINTENANCE PERSONNEL NOTED A CRACK IN THE PASSENGER DOOR AFT FRAME. THEY REPAIRED THE CRACK BY REMOVING 7 INCHES OF THE FRAME AND INSTALLING A FILLER AND DOUBLER IAW FAC SRM 52-90-10. (M) - [SDR MALA954712](https://openairdocs.org/sdr/MALA954712.md): Solenoid Valve · failed · Nov 15, 1995 · N423MA · Swrngn SA227AC · Air Intake Anti/De-Ice System > FLT NR 3345 - EN ROUTE FROM DTW TO CVG, THE LEFT INTAKE HEAT WOULD NOT FUNCTION WHEN SELECTED ON. THE AIRCRAFT RETURNED TO DTW WITHOUT INCIDENT. MAINTENANCE PERSONNEL REPLACED THE LEFT INTAKE HEAT VALVE AND REPAIRED BROKEN WIRES AT THE INTAKE HEAT VALVE CANN - [SDR MALA954691](https://openairdocs.org/sdr/MALA954691.md): Skin · cracked · Oct 31, 1995 · N423MA · Swrngn SA227AC · Wing, Plate/Skin > DURING A SCHEDULED INSPECTION IN MSP, MAINTENANCE NOTED THAT THE RIGHT LOWER WING HAD A CRACK AROUND THE RIVET HOLE AT WS 113. REPAIRS WERE COMPLETED BY INSTALLING A SURFACE DOUBLER IAW FAC LAR 95-MALA-280 AND INSTALLING STRINGER REPAIR DOUBLERS IAW FAC SRM 5 - [SDR MALA954620](https://openairdocs.org/sdr/MALA954620.md): Door Frame · cracked · Sep 6, 1995 · N423MA · Swrngn SA227AC · Fuselage Miscellaneous Structure > DURING A SCHEDULED INSPECTION IN MSP, THE AFT CARGO FUSELAGE FRAME AT FS 491 WAS FOUND TO BE CRACKED AT THE GAS STRUT MOUNT POST HOLE. REPAIRS WERE COMPLETED BY FABRICATING AND INSTALLING A REPAIR ANGLE IAW FAIRCHILD ARP 53-20-9503. (M) - [SDR MALA954616](https://openairdocs.org/sdr/MALA954616.md): Skin · dented · Sep 1, 1995 · N423MA · Swrngn SA227AC · Wing, Plate/Skin > MSP - DURING PRE-FLIGHT INSPECTION, THE CREW NOTED A BIRD STRIKE DENT ON THE LEFT WING EXTENSION. MAINTENANCE PERSONNEL REPAIRED THE WING DENT BY REMOVING A 11.75 INCH SECTION OF LEADING EDGE SKIN AND REPLACING IT WITH A FLUSH PATCH AND REPAIR SPLICE IAW FAIR - [SDR MALA954581](https://openairdocs.org/sdr/MALA954581.md): Corner Frame · dented · Aug 13, 1995 · N423MA · Swrngn SA227AC · Passenger/Crew Doors > DURING A SCHEDULED INSPECTION IN MSP, THE PASSENGER DOOR LOWER FRAME WAS FOUND TO BE DENTED. REPAIRS WERE COMPLETED BY REPLACING THE CORNER FRAME, P/N 27-24044-009, STRAIGHT FRAME, P/N 27-24043-003, AND STRAIGHT FRAME, P/N 27-24043-035 IAW FAC SRM 51-00-00 PA - [SDR MALA954510](https://openairdocs.org/sdr/MALA954510.md): Uplock Hook · broken · Jun 20, 1995 · N423MA · Swrngn SA227AC · Landing Gear Retraction/Extension System > FFM - FLT 3074 - AFTER TAKEOFF, NOSE LANDING GEAR WOULD CYCLE PARTIALLY OUT+OF +HEEL WELL. NO GEAR INDICATIONS WOULD ILLUMINATE. THE FLIGHT CONTINUED TO MSP WITHOUT INCIDENT. MAINTENANCE REPLACED THE RT MAIN GEAR UPLOCK. THE SYSTEM OPERATED SATISFACTORILY. - [SDR MALA954478](https://openairdocs.org/sdr/MALA954478.md): Switch · failed · May 29, 1995 · N423MA · Swrngn SA227AC · Landing Gear Position and Warning > MSP - FLT 3218 - ON CLIMB-OUT FROM MSP, THE GEAR WARNING HORN SOUNDED. THE WARNING HORN CONTINUED TO SOUND UNTIL THE GEAR WAS SELECTED DOWN. THE AIRCRAFT RETURNED TO MSP. MAINTENANCE REPLACED A MICROSWITCH AT THE RIGHT POWER LEVER. SYSTEM OPERATED SATISFAC - [SDR MALA954477](https://openairdocs.org/sdr/MALA954477.md): Computer · failed · May 28, 1995 · N423MA · Swrngn SA227AC · Stall Warning System > MSP - FLT 3352 - ON CLIMB-OUT FROM MSP, THE GEAR WARNING HORN BEGAN TO SOUND. THE AIRCRAFT RETURNED TO MSP. MAINTENANCE WAS UNABLE TO DUPLICATE THE DISCREPANCY. AS A PRECAUTION, MAINTENANCE REPLACED THE SAS COMPUTER. SYSTEM OPERATED SATISFACTORILY DURING A - [SDR MALA954281](https://openairdocs.org/sdr/MALA954281.md): Rib · chafed · Jan 30, 1995 · N423MA · Swrngn SA227AC · Trailing Edge Flaps > DURING A SCHEDULED INSPECTION IN MSP, MAINTENANCE FOUND THE RIGHT FLAP INBOARD END RIB TO HAVE CHAFING DAMAGE FROM CONTACT WITH THE SWING LINK BRACKET. REPAIRS WERE COMPLETED BY REPLACING THE RIGHT FLAP INBOARD END RIB. (Z) - [SDR MALA954233](https://openairdocs.org/sdr/MALA954233.md): Uplock Switch · failed · Jan 7, 1995 · N423MA · Swrngn SA227AC · Landing Gear Position and Warning > FLT NR 3496 - ON APPROACH TO MSP, THE NOSE GEAR INTRANSIT LIGHT AND DOWN AND LOCKED LIGHT WAS SLOW TO ILLUMINATE. THE AIRCRAFT CONTINUED TO MSP. MAINTENANCE REPLACED THE NOSE GEARS LEFT UPLOCK SWITCH. SYSTEM OPERATED SATISFACTORILY. (Z) ## 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 = 'N423MA' AND deregistration_id = 'N423MA-2023-12-07' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/deregistered/N423MA-2023-12-07/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.