# Service difficulty reports: N720CK A list on [N720CK](https://openairdocs.org/aircraft/N720CK.md). Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first. Page 1 of 3 · 138 reports - [SDR K11A2019041082001](https://openairdocs.org/sdr/K11A2019041082001.md): Landing Gear · inoperative · Jan 28, 2019 · N720CK · Boeing 7272B6 · Landing Gear Retraction/Extension System > NOSE GEAR DID NOT EXTEND ON LANDING. REPLACED NOSE LANDING GEAR, INSTALLED REPAIRS TO FUSELAGE IAW BOEING MSG KAE-KAE-19-0005-15C, PERFORMED TERM SERVICE AND INSTALLED GEAR PINS FERRY AIRCRAFT TO KYIP, REF NTO MSG KAE-KAE-19-0005-22B, AIRCRAFT BEING EVALUATED - [SDR K11A2018120572001](https://openairdocs.org/sdr/K11A2018120572001.md): Structure · corroded · Oct 10, 2018 · N720CK · Boeing 7272B6 · Cargo/Baggage Doors > AFT CARGO DOOR LOWER CHORD CORRODED - [SDR K11A2018120572002](https://openairdocs.org/sdr/K11A2018120572002.md): Structure · corroded · Oct 9, 2018 · N720CK · Boeing 7272B6 · Fuselage Main, Structure > RIGHT SIDE INNER NOSE W/W STA 312-328 T CHORD CORROSION - [SDR K11A2018120572003](https://openairdocs.org/sdr/K11A2018120572003.md): Structure · corroded · Oct 8, 2018 · N720CK · Boeing 7272B6 · Cargo/Baggage Doors > FWD CARGO PIT DOOR CORRODED AT AFT LOWER LIGHTNING HOLE... REMOVED & REPLACED DOOR - [SDR K11A2018060702001](https://openairdocs.org/sdr/K11A2018060702001.md): Compressor · stalled · Jun 6, 2018 · N720CK · Boeing 7272B6 · Engine (Turbine/Turboprop) > ON THROTTLE UP FOR TAKEOFF, THE NR 1 ENGINE HAD A COMPRESSOR STALL, RETURNED TO BLOCKS. OPEN - [SDR K11A2017080420001](https://openairdocs.org/sdr/K11A2017080420001.md): Skin · damaged · Aug 4, 2017 · N720CK · Boeing 7272B6 · Fuselage Main, Plate/Skin > FUSELAGE SKIN AT STA. 188-200 BETWEEN STRINGER 24L TO 24R. - [SDR KCSA201704060155](https://openairdocs.org/sdr/KCSA201704060155.md): Landing Gear · malfunctioned · Apr 5, 2017 · N720CK · Boeing 7272B6 · Landing Gear Retraction/Extension System > NOSE LANDING GEAR WOULD NOT EXTEND, HAD TO CYCLED HANDLE FOR NOSE GEAR TO EXTEND AND LOCK - [SDR K11A2016122372001](https://openairdocs.org/sdr/K11A2016122372001.md): Warning Light · illuminated · Dec 23, 2016 · N720CK · Boeing 7272B6 · Pneumatic Indicating System > NR 3 BLEED TRIP LIGHT CAME ON DURING CRUISE. - [SDR K11A2016122272000](https://openairdocs.org/sdr/K11A2016122272000.md): Valve · stuck · Dec 21, 2016 · N720CK · Boeing 7272B6 · Fuel Transfer Valve > DURING CLIMB OUT, NR 3 FUEL CROSS FEED VALVE WAS STUCK CLOSED. - [SDR K11A2015122172001](https://openairdocs.org/sdr/K11A2015122172001.md): O-Ring · leaking · Dec 21, 2015 · N720CK · Boeing 7272B6 · Engine Fuel Pump > FUEL LEAKING FROM NR 3 ENGINE FUEL PUMP, INSPECTED AND FOUND O-RING WAS BAD, REPLACED O-RING WITH NEW, LEAK AND OP'S CHECK GOOD. NO OTHER DEFECTS NOTED. - [SDR K11A20151210203](https://openairdocs.org/sdr/K11A20151210203.md): Skin · corroded · Dec 9, 2015 · N720CK · Boeing 7272B6 · Fuselage Main, Plate/Skin > FUSELAGE SKIN CORROSION BS 950E + 12 ABOVE STR 28R. - [SDR K11A2015121020001](https://openairdocs.org/sdr/K11A2015121020001.md): Shear Tie · corroded · Dec 1, 2015 · N720CK · Boeing 7272B6 · Fuselage Internal Mounting Structure > FRAME SHEAR TIE CORROSION BS 970, STR 27L-28L. - [SDR K11A2015121020003](https://openairdocs.org/sdr/K11A2015121020003.md): Stringer · corroded · Nov 29, 2015 · N720CK · Boeing 7272B6 · Fuselage Main, Longeron/Stringer > STRINGER 27L DIRECTLY UNDER FRAME CORRODED UNDER FASTENER HEAD BS 970 UNDER STR 27L. - [SDR K11A2015121020002](https://openairdocs.org/sdr/K11A2015121020002.md): Shear Tie · corroded · Nov 23, 2015 · N720CK · Boeing 7272B6 · Fuselage Internal Mounting Structure > FUSELAGE SKIN ATTACH BRACKET AT BULKHEAD SHELF POINT HAS CORROSION BS 950, RBL 70. - [SDR K11A2013031120001](https://openairdocs.org/sdr/K11A2013031120001.md): Structure · cracked · Mar 11, 2013 · N720CK · Boeing 7272B6 · Fuselage Miscellaneous Structure > CRACKED FASTENER HOLE. - [SDR K11A2013030620001](https://openairdocs.org/sdr/K11A2013030620001.md): Angle · corroded · Feb 22, 2013 · N720CK · Boeing 7272B6 · Fuselage Miscellaneous Structure > CORRODED ANGLE. - [SDR K11A2013030620002](https://openairdocs.org/sdr/K11A2013030620002.md): Web · corroded · Jan 31, 2013 · N720CK · Boeing 7272B6 · Fuselage Miscellaneous Structure > EVIDENCE OF CORROSION ON AFT WEB SIDE. - [SDR K11A2011123072001](https://openairdocs.org/sdr/K11A2011123072001.md): Floor Support · corroded · Dec 30, 2011 · N720CK · Boeing 7272B6 · Fuselage Miscellaneous Structure > FLOOR SUPPORT CORRODED (BOTTOM SIDE) 1X3 INCHES. - [SDR K11A10012872001A](https://openairdocs.org/sdr/K11A10012872001A.md): Strap · cracked · Feb 10, 2010 · N720CK · Boeing 7272B6 · Fuselage Main, Structure > TIE STRAP LOOSE AND CRACKED. - [SDR K11A2010012872002](https://openairdocs.org/sdr/K11A2010012872002.md): Seat Track · corroded · Feb 10, 2010 · N720CK · Boeing 7272B6 · Fuselage, Seat/Cargo Attach Fittings > TEN INCHES OF CORROSION, SEAT TRACK CORRODED. - [SDR K11A2010012872001](https://openairdocs.org/sdr/K11A2010012872001.md): Seat Track · corroded · Feb 8, 2010 · N720CK · Boeing 7272B6 · Fuselage, Seat/Cargo Attach Fittings > FIVE INCHES OF CORROSION SEAT TRACK CORRODED. - [SDR K11A2010020172001](https://openairdocs.org/sdr/K11A2010020172001.md): Shear Tie · corroded · Feb 1, 2010 · N720CK · Boeing 7272B6 · Fuselage Internal Mounting Structure > SHEAR TIE CORROSION. - [SDR K11A2010013172002](https://openairdocs.org/sdr/K11A2010013172002.md): Sill · corroded · Jan 31, 2010 · N720CK · Boeing 7272B6 · Fuselage Miscellaneous Structure > R3 WINDOW LOWER SILL HAS EVIDENCE OF CORROSION, 6 INCHES. - [SDR K11A2010013172001](https://openairdocs.org/sdr/K11A2010013172001.md): Sill · corroded · Jan 31, 2010 · N720CK · Boeing 7272B6 · Fuselage Miscellaneous Structure > L3 WINDOW LOWER SILL HAS EVIDENCE OF CORROSION. - [SDR K11A2010012672002](https://openairdocs.org/sdr/K11A2010012672002.md): Skin · bulged · Jan 31, 2010 · N720CK · Boeing 7272B6 · Fuselage Main, Plate/Skin > SKIN BULGE AT LAP SEAM, 7 INCHES OF CORROSION. - [SDR K11A2010012772002](https://openairdocs.org/sdr/K11A2010012772002.md): Seat Track · corroded · Jan 27, 2010 · N720CK · Boeing 7272B6 · Fuselage, Seat/Cargo Attach Fittings > SEAT TRACK CORRODED 4 INCHES. - [SDR K11A2010012772001](https://openairdocs.org/sdr/K11A2010012772001.md): Shear Tie · corroded · Jan 27, 2010 · N720CK · Boeing 7272B6 · Fuselage Internal Mounting Structure > STA 600 FWD LOWER CARGO LOWER LEG OF SHEAR TIE CORRODED. - [SDR K11A2010012672001](https://openairdocs.org/sdr/K11A2010012672001.md): Skin · damaged · Jan 26, 2010 · N720CK · Boeing 7272B6 · Nacelle/Pylon, Plate/Skin > SKIN DENTED CREASED 4 INCHES BELOW VERT STAB LT SIDE. - [SDR K11A2010012472008](https://openairdocs.org/sdr/K11A2010012472008.md): Structure · corroded · Jan 24, 2010 · N720CK · Boeing 7272B6 · Fuselage Miscellaneous Structure > CORROSION UNDER DOOR SILL PLATE, 8 INCHES. - [SDR K11A2010012472007](https://openairdocs.org/sdr/K11A2010012472007.md): Support · corroded · Jan 24, 2010 · N720CK · Boeing 7272B6 · Fuselage Main, Longeron/Stringer > STRINGER SUPPORT CORROSION, 20 INCHES. - [SDR K11A2010012472006](https://openairdocs.org/sdr/K11A2010012472006.md): Skin · corroded · Jan 24, 2010 · N720CK · Boeing 7272B6 · Fuselage Main, Plate/Skin > EIGHT INCHES OF SKIN CORROSION. - [SDR K11A2010012472005](https://openairdocs.org/sdr/K11A2010012472005.md): Stringer · corroded · Jan 24, 2010 · N720CK · Boeing 7272B6 · Fuselage Main, Longeron/Stringer > STRINGER CORROSION, 15 INCHES. - [SDR K11A2010012472004](https://openairdocs.org/sdr/K11A2010012472004.md): Sill · corroded · Jan 24, 2010 · N720CK · Boeing 7272B6 · Fuselage Miscellaneous Structure > FWD LWR CARGO DOOR INSIDE DOOR SILL 6 INCHES OF CORROSION. - [SDR K11A2010012472003](https://openairdocs.org/sdr/K11A2010012472003.md): Sill · corroded · Jan 24, 2010 · N720CK · Boeing 7272B6 · Fuselage Miscellaneous Structure > CORROSION UNDER SILL S-26R STA 970-990. - [SDR K11A2010012472001](https://openairdocs.org/sdr/K11A2010012472001.md): Stringer · corroded · Jan 24, 2010 · N720CK · Boeing 7272B6 · Fuselage Main, Longeron/Stringer > CORROSION ON S-29L. - [SDR K11A2010012472002](https://openairdocs.org/sdr/K11A2010012472002.md): Stringer · corroded · Jan 24, 2010 · N720CK · Boeing 7272B6 · Fuselage Main, Longeron/Stringer > CORROSION ON S-28L. - [SDR K11A2010012372001](https://openairdocs.org/sdr/K11A2010012372001.md): Flange · cracked · Jan 23, 2010 · N720CK · Boeing 7272B6 · Fuselage Miscellaneous Structure > CRACK ON FLANGE. - [SDR K11A2009022472002](https://openairdocs.org/sdr/K11A2009022472002.md): Spar · cracked · Feb 24, 2009 · N720CK · Boeing 7272B6 · Elevator, Spar/Rib > REAR SPAR HAS CRACK, LT ELE STA 66.5. - [SDR K11A2009022472001](https://openairdocs.org/sdr/K11A2009022472001.md): Spar · cracked · Feb 16, 2009 · N720CK · Boeing 7272B6 · Elevator, Spar/Rib > REAR SPAR HAS CRACK, LT ELE STA 68. - [SDR K11A2009020672001](https://openairdocs.org/sdr/K11A2009020672001.md): Seat Track · corroded · Feb 5, 2009 · N720CK · Boeing 7272B6 · Fuselage, Seat/Cargo Attach Fittings > SEAT TRACK CORROSION. - [SDR K11A2009020472001](https://openairdocs.org/sdr/K11A2009020472001.md): Floorbeam · corroded · Jan 23, 2009 · N720CK · Boeing 7272B6 · Fuselage Main, Floor Beam > FLOORBEAM LOWER CHORD REPAIR CORRODED ON FORWARD SIDE. - [SDR K11A200912872001](https://openairdocs.org/sdr/K11A200912872001.md): Repair · corroded · Jan 23, 2009 · N720CK · Boeing 7272B6 · Fuselage Main, Floor Beam > FLOORBEAM LOWER CHORD REPAIR CORRODED ON FORWARD SIDE. - [SDR K11A2008102272001](https://openairdocs.org/sdr/K11A2008102272001.md): A/C Pack · inoperative · Oct 17, 2008 · N720CK · Boeing 7272B6 · Cabin Cooling System > DURING CLIMBOUT CABIN ALT BEGAN TO CLIMB AT 1500 FT/MIN RT AC PACK WAS FOUND TO BE INOPERATIVE, LT PACK WORKING BUT WOULD NOT MAINTAIN CABIN PRESS. REMOVED AND REPLACED RIGHT AC PACK FLOW CONTROL MODULATING AND SHUTOFF VALVE. - [SDR K11A2008121672010](https://openairdocs.org/sdr/K11A2008121672010.md): Spar · cracked · Nov 21, 2007 · N720CK · Boeing 7272B6 · Elevator, Spar/Rib > RT ELEVATOR REAR SPAR CRACKED FWD OF THE NR 4 TRIM TAB HINGE, ELEVATOR STA 99.79. - [SDR K11A2008121672009](https://openairdocs.org/sdr/K11A2008121672009.md): Stiffener · cracked · Nov 16, 2007 · N720CK · Boeing 7272B6 · Wing Miscellaneous Structure > RT WING FRONT SPAR VERTICAL STIFFENER CRACKED. - [SDR K11A2008121672005](https://openairdocs.org/sdr/K11A2008121672005.md): Shear Tie · cracked · Nov 15, 2007 · N720CK · Boeing 7272B6 · Fuselage Internal Mounting Structure > SHEAR TIE CRACKED. - [SDR K11A2008121672007](https://openairdocs.org/sdr/K11A2008121672007.md): Web · corroded · Nov 1, 2007 · N720CK · Boeing 7272B6 · Fuselage Miscellaneous Structure > MAIN DECK FLOOR WEB CORRODED AROUND NUT PLATE. - [SDR K11A200121672006](https://openairdocs.org/sdr/K11A200121672006.md): Skin · corroded · Oct 31, 2007 · N720CK · Boeing 7272B6 · Fuselage Main, Plate/Skin > FUSELAGE SKIN CORROSION. - [SDR K11A2008121672004](https://openairdocs.org/sdr/K11A2008121672004.md): Bolt · corroded · Oct 26, 2007 · N720CK · Boeing 7272B6 · Fuselage Main, Attach Fittings > CORROSION AT BULKHEAD FITTING ATTACH BOLTS. - [SDR K11A2008121672003](https://openairdocs.org/sdr/K11A2008121672003.md): Shear Tie · corroded · Oct 24, 2007 · N720CK · Boeing 7272B6 · Fuselage Internal Mounting Structure > FRAME SHEAR TIE CORRODED. Next page: https://openairdocs.org/aircraft/N720CK/reports.md?page=2 ## 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 = 'N720CK' AND registry_match = 'registration' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/aircraft/N720CK/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.