# N493MC: 1998 Boeing 747-47UF - Status: Valid registration - Airframe: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (registry code 1384812, 660 seats) - Engine: [GE CF6-80 series](https://openairdocs.org/engine/ge-cf6-80-series) (registry code 30025) - Data sheets: [TCDS E13NE](https://openairdocs.org/tcds/E13NE) (General Electric Company GE Aerospace) (OpenAirDocs) - Serial number: 29254 - Year built: 1998 - Type: Fixed wing multi engine - Engine type: Turbo-fan - Airworthiness: Standard, transport - Airworthiness date: October 15, 1998 - Certificate issued: November 14, 2016 - Expires: November 30, 2029 - Mode S code: A61C53 - Registered owner: [Atlas Air Inc](https://openairdocs.org/faa-owner/ATLAS%20AIR%20INC) - Location: [Purchase, NY](https://openairdocs.org/faa-place/NY/Purchase) - Owner type: Corporation - Owner's area on the map: 41.0382° N, 73.7107° W: Placed by OpenAirDocs at the center of ZIP code 10577, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft is based - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=493MC - Page: https://openairdocs.org/aircraft/N493MC From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination. The registry lists only the engine series, so ADs for every GE CF6-80 model are included. ## ADs that may apply (OpenAirDocs): 61 in force ### Matched by airframe (Boeing 747-47UF) None in force. ### Matched by engine (GE CF6-80 series) - [AD 2024-24-03](https://openairdocs.org/ad/2024-24-03): Engine Exhaust · Boeing MD-11, MD-11F and CF6-80C2D1F. Effective Jan 13, 2025 - [AD 2023-20-08](https://openairdocs.org/ad/2023-20-08): Engine (Turbine/Turboprop) · General Electric CF6-80C2B1F, CF6-80C2B2F, CF6-80C2B4F and 4 more. Effective Oct 19, 2023 - [AD 2021-26-22](https://openairdocs.org/ad/2021-26-22): Turbine Section · General Electric CF6-80A, CF6-80A1, CF6-80A2 and 21 more. Effective Mar 14, 2022 - [AD 2022-02-18](https://openairdocs.org/ad/2022-02-18): Engine Mount Section · General Electric CF6-80C2A1, CF6-80C2A2, CF6-80C2A3 and 3 more. Effective Feb 25, 2022 - [AD 2021-14-11](https://openairdocs.org/ad/2021-14-11): Turbine Section · General Electric CF6-80A, CF6-80A1, CF6-80A2 and 25 more. Effective Aug 27, 2021 - [AD 2021-03-02](https://openairdocs.org/ad/2021-03-02): Fuel Control/Turbine Engines · General Electric CF6-80C2A1, CF6-80C2A2, CF6-80C2A3 and 16 more. Effective Mar 31, 2021 - [AD 2020-22-02](https://openairdocs.org/ad/2020-22-02): Engine Fuel and Control · General Electric CF6-80C2A5F, CF6-80C2B1F, CF6-80C2B2F and 13 more. Effective Dec 3, 2020 - [AD 2018-07-05](https://openairdocs.org/ad/2018-07-05): Turbine Section · General Electric CF6-80A, CF6-80A1, CF6-80A2 and 1 more. Effective May 11, 2018 - [AD 2017-11-15](https://openairdocs.org/ad/2017-11-15): Turbine/ Turboprop Engine--Turbine Section · General Electric CF6-80C2L1F. Effective Jul 13, 2017 - [AD 2016-08-10](https://openairdocs.org/ad/2016-08-10): Accessory heat shield · General Electric CF6-80C2A1, CF6-80C2A2, CF6-80C2A3 and 26 more. Effective Jun 1, 2016 - [AD 2014-21-01](https://openairdocs.org/ad/2014-21-01): Fuel manifold · General Electric CF6-80C2A1, CF6-80C2A2, CF6-80C2A3 and 26 more. Effective Nov 28, 2014 - [AD 2013-08-20](https://openairdocs.org/ad/2013-08-20): Fuel tube · General Electric CF6-80C2A1, CF6-80C2A2, CF6-80C2A3 and 14 more. Effective May 31, 2013 - [AD 2012-03-12](https://openairdocs.org/ad/2012-03-12): No. 3 bearing packing · General Electric CF6-80C2A1, CF6-80C2A2, CF6-80C2A3 and 21 more. Effective Apr 5, 2012 - [AD 2012-04-05](https://openairdocs.org/ad/2012-04-05): Electronic control unit (ECU) · General Electric CF6-80C2B1F, CF6-80C2B1F1, CF6-80C2B1F2 and 8 more. Effective Mar 30, 2012 - [AD 2011-23-04](https://openairdocs.org/ad/2011-23-04): Forward engine mount assembly side links · General Electric CF6-45A, CF6-45A2, CF6-50A and 14 more. Effective Dec 12, 2011 - [AD 2009-21-07](https://openairdocs.org/ad/2009-21-07): Thrust and thrust control · General Electric CF6-80C2A1, CF6-80C2A2, CF6-80C2A3 and 21 more. Effective Dec 1, 2009 - [AD 2009-14-08](https://openairdocs.org/ad/2009-14-08): High-pressure compressor rotor (HPCR) stages 11-14 spool/ shafts · General Electric CF6-80C2B5F. Effective Aug 5, 2009 - [AD 2009-08-06](https://openairdocs.org/ad/2009-08-06): Stage 1 high-pressure turbine (HPT) rotor disks · General Electric CF6-80A, CF6-80A1, CF6-80A2 and 1 more. Effective May 18, 2009 - [AD 2009-07-10](https://openairdocs.org/ad/2009-07-10): High-pressure turbine rotor (HPTR) · General Electric CF6-80A, CF6-80A1, CF6-80A2 and 1 more. Effective May 6, 2009 - [AD 2009-07-03](https://openairdocs.org/ad/2009-07-03): Eddy current inspection (ECI) · General Electric CF6-80C2A1, CF6-80C2A2, CF6-80C2A3 and 26 more. Effective Apr 30, 2009 - [AD 2009-04-10](https://openairdocs.org/ad/2009-04-10): Critical life-limited parts · General Electric CF6-80A, CF6-80A1, CF6-80A2 and 30 more. Effective Mar 30, 2009 - [AD 2008-21-11](https://openairdocs.org/ad/2008-21-11): Low-pressure turbine (LPT) cases · General Electric CF6-80C2A1, CF6-80C2A2, CF6-80C2A3 and 25 more. Effective Nov 28, 2008 - [AD 2008-02-17](https://openairdocs.org/ad/2008-02-17): Thrust reverser actuation systems · General Electric CF6-50A, CF6-50C, CF6-50C1 and 16 more. Effective Feb 28, 2008 - [AD 2007-24-07](https://openairdocs.org/ad/2007-24-07): Thermal spray coating on certain stage 1 fan disks · General Electric CF6-80C2B1. Effective Jan 2, 2008 - [AD 2007-22-07](https://openairdocs.org/ad/2007-22-07): Electronic control unit (ECU) · General Electric CF6-80C2D1F. Effective Nov 28, 2007 - [AD 2007-21-06](https://openairdocs.org/ad/2007-21-06): Electronic control unit (ECU) · General Electric CF6-80C2A5F. Effective Nov 15, 2007 - [AD 2007-11-20](https://openairdocs.org/ad/2007-11-20): Fuel shroud retaining rings · General Electric CF6-80C2A1, CF6-80C2A2, CF6-80C2A3 and 22 more. Effective Jul 10, 2007 - [AD 2007-05-14](https://openairdocs.org/ad/2007-05-14): Cast titanium weld- repaired forward engine mount platforms · General Electric CF6-80C2A1, CF6-80C2A2, CF6-80C2A3 and 16 more. Effective Apr 9, 2007 - [AD 2006-16-06](https://openairdocs.org/ad/2006-16-06): Certain stage 1 high- pressure turbine (HPT) rotor disks · General Electric CF6-80A, CF6-80A1, CF6-80A2 and 21 more. Effective Sep 5, 2006 - [AD 2006-06-08](https://openairdocs.org/ad/2006-06-08): Latching system of the fan reverser · General Electric CF6-80C2D1F. Effective Apr 25, 2006 - [AD 2005-17-05](https://openairdocs.org/ad/2005-17-05): High pressure compressor rotor (HPCR) · General Electric CF6-80C2A1, CF6-80C2A2, CF6-80C2A3 and 25 more. Effective Sep 27, 2005 - [AD 2005-06-07](https://openairdocs.org/ad/2005-06-07): Directional pilot valve (DPV) assembly · General Electric CF6-80A1, CF6-80A3, CF6-80C2A1 and 5 more. Effective Apr 25, 2005 - [AD 2004-22-07](https://openairdocs.org/ad/2004-22-07): Stage 2 nozzle guide vanes (HPT S2 NGVs) · General Electric CF6-80C2A1, CF6-80C2A2, CF6-80C2A3 and 16 more. Effective Dec 1, 2004 - [AD 2004-07-13](https://openairdocs.org/ad/2004-07-13): High pressure turbine (HPT) stage 1 disks · General Electric CF6-80C2A5F, CF6-80C2B5F, CF6-80C2B7F and 1 more. Effective May 6, 2004 - [AD 2003-12-08](https://openairdocs.org/ad/2003-12-08): Directional pilot valve · General Electric CF6-80A1, CF6-80A3, CF6-80C2A1 and 5 more. Effective Jul 23, 2003 - [AD 2003-02-07](https://openairdocs.org/ad/2003-02-07): Low pressure turbine (LPT) shrouds · General Electric CF6-50A, CF6-50C, CF6-50C1 and 30 more. Effective Mar 3, 2003 - [AD 2002-25-08](https://openairdocs.org/ad/2002-25-08): High pressure compressor rotor · General Electric CF6-45A, CF6-45A2, CF6-50A and 40 more. Effective Jan 23, 2003 - [AD 2002-22-12](https://openairdocs.org/ad/2002-22-12): Titeflex hoses · BAE Systems ATP, Avro 146-RJ100A, Avro 146-RJ70A and 122 more. Effective Dec 13, 2002 - [AD 2001-06-09](https://openairdocs.org/ad/2001-06-09): Aft Engine Mount Link Assemblies · General Electric CF6-80A3. Effective May 1, 2001 - [AD 2000-12-08](https://openairdocs.org/ad/2000-12-08): Mount Link Assemblies · General Electric CF6-80C2A1, CF6-80C2A2, CF6-80C2A3 and 4 more. Effective Aug 28, 2000 - [AD 2000-03-04](https://openairdocs.org/ad/2000-03-04): General Electric CF6-80C2A1, CF6-80C2A2, CF6-80C2A3 and 19 more. Effective Apr 10, 2000 - [AD 99-01-01](https://openairdocs.org/ad/99-01-01): Accessory Gearbox (AGB) idler adapters · General Electric CF6-80C2A1, CF6-80C2A2, CF6-80C2A3 and 19 more. Effective Jan 21, 1999 - [AD 98-22-06](https://openairdocs.org/ad/98-22-06): Fan Disks · General Electric CF6-45A, CF6-45A2, CF6-50A and 41 more. Effective Nov 23, 1998 - [AD 97-22-14](https://openairdocs.org/ad/97-22-14): (HPCR) 3-9 Spool · General Electric CF6-50A, CF6-50C, CF6-50C1 and 29 more. Effective Nov 17, 1997 - [AD 96-16-07](https://openairdocs.org/ad/96-16-07): Rear Right Hand Mount Link · General Electric CF6-80C2A1, CF6-80C2A2, CF6-80C2A3 and 17 more. Effective Aug 28, 1996 - [AD 95-17-16](https://openairdocs.org/ad/95-17-16): Compressor Rear Frame · General Electric CF6-80A, CF6-80A1, CF6-80A2 and 1 more. Effective Nov 7, 1995 - [AD 95-10-11](https://openairdocs.org/ad/95-10-11): Fan Reversers · General Electric CF6-80C2A1, CF6-80C2A2, CF6-80C2A3 and 17 more. Effective May 31, 1995 - [AD 94-20-06](https://openairdocs.org/ad/94-20-06): Oil System · General Electric CF6-80C2A1, CF6-80C2A2, CF6-80C2A3 and 16 more. Effective Dec 27, 1994 - [AD 94-07-04](https://openairdocs.org/ad/94-07-04): High Pressure Turbine Disk · General Electric CF6-80A, CF6-80A1, CF6-80A2 and 1 more. Effective May 23, 1994 - [AD 94-06-03](https://openairdocs.org/ad/94-06-03): High Pressure Turbine Disk · General Electric CF6-80C2A1, CF6-80C2A2, CF6-80C2A3 and 16 more. Effective Apr 29, 1994 ### Historical (superseded or no longer in force) - [AD 2020-20-13](https://openairdocs.org/ad/2020-20-13) (historical): Turbine Section · General Electric CF6-80A, CF6-80A1, CF6-80A2 and 21 more. Effective Nov 12, 2020 - [AD 2018-15-04](https://openairdocs.org/ad/2018-15-04) (historical): Turbine/Turboprop Engine--Turbine Section · General Electric CF6-80A, CF6-80A1, CF6-80A2 and 21 more. Effective Oct 2, 2018 - [AD 2009-05-02](https://openairdocs.org/ad/2009-05-02) (historical): Drainless fuel manifold assemblies · General Electric CF6-80C2A1, CF6-80C2A2, CF6-80C2A3 and 26 more. Effective Mar 31, 2009 - [AD 2007-12-07](https://openairdocs.org/ad/2007-12-07) (historical): Electronic control units (ECUs) · General Electric CF6-80C2B1F, CF6-80C2B2F, CF6-80C2B4F and 5 more. Effective Jul 11, 2007 - [AD 2006-12-24](https://openairdocs.org/ad/2006-12-24) (historical): Five-link forward mount assembly · General Electric CF6-45A, CF6-45A2, CF6-50A and 14 more. Effective Jul 21, 2006 - [AD 2004-04-07](https://openairdocs.org/ad/2004-04-07) (historical): Stage 1 HPT rotor disks · General Electric CF6-80A, CF6-80A1, CF6-80A2 and 21 more. Effective Mar 12, 2004 - [AD 2003-01-05](https://openairdocs.org/ad/2003-01-05) (historical): Dovetail slots · General Electric CF6-80A, CF6-80A1, CF6-80A2 and 1 more. Effective Jan 28, 2003 - [AD 2002-07-12](https://openairdocs.org/ad/2002-07-12) (historical): Life Limits Section of Continued Airworthiness (ICA) - Selected Critical Life-limited Parts · General Electric CF6-80A, CF6-80A1, CF6-80A2 and 27 more. Effective May 15, 2002 - [AD 2001-10-07](https://openairdocs.org/ad/2001-10-07) (historical): High Pressure Turbine Rotor Disks · General Electric CF6-80C2A1, CF6-80C2A2, CF6-80C2A3 and 19 more. Effective Jun 18, 2001 - [AD 2000-08-12](https://openairdocs.org/ad/2000-08-12) (historical): Life-limited Parts · General Electric CF6-80A, CF6-80A1, CF6-80A2 and 10 more. Effective Oct 23, 2000 - [AD 2000-16-12](https://openairdocs.org/ad/2000-16-12) (historical): High Pressure Compressor Rotor Stage 3-9 Spools · General Electric CF6-45A, CF6-45A2, CF6-50A and 39 more. Effective Sep 5, 2000 - [AD 2000-04-14](https://openairdocs.org/ad/2000-04-14) (historical): Fuel tube flange seating · General Electric CF6-80C2A1, CF6-80C2A2, CF6-80C2A3 and 12 more. Effective May 1, 2000 - [AD 99-24-15](https://openairdocs.org/ad/99-24-15) (historical): High Pressure Compressor Rotor (HPCR) Stage 3-9 Spools · General Electric CF6-45A, CF6-45A2, CF6-50A and 39 more. Effective Jan 28, 2000 - [AD 99-18-20](https://openairdocs.org/ad/99-18-20) (historical): Inadvertent In-flight Thrust Reverser · General Electric Aircraft Engines CF6-50 Series (all), CF6-80A1, CF6-80A3 and 6 more. Effective Nov 2, 1999 - [AD 99-18-19](https://openairdocs.org/ad/99-18-19) (historical): Inadvertent Thrust Reverser · General Electric CF6-80A, CF6-80A1, CF6-80A2 and 7 more. Effective Sep 24, 1999 - [AD 99-08-13](https://openairdocs.org/ad/99-08-13) (historical): General Electric CF6-80A, CF6-80A1, CF6-80A2 and 26 more. Effective May 13, 1999 - [AD 98-15-17](https://openairdocs.org/ad/98-15-17) (historical): Link Assembly · General Electric CF6-80A3. Effective Aug 7, 1998 - [AD 91-20-02](https://openairdocs.org/ad/91-20-02) (historical): Fuel Manifolds · General Electric CF6-80C2A1, CF6-80C2A2, CF6-80C2A3 and 12 more. Effective Nov 25, 1991 - [AD 90-26-01](https://openairdocs.org/ad/90-26-01) (historical): Fuel Manifold Systems · General Electric CF6-80C2A1, CF6-80C2A2, CF6-80C2A3 and 11 more. Effective Dec 20, 1990 All 80: https://openairdocs.org/aircraft/N493MC/ads.md ## Information bulletins (advisory) (5 in force) - [SAIB 2023-15](https://openairdocs.org/saib/2023-15): Falsified Forms from AOG Technics. Issued Dec 19, 2023 - [SAIB NE-11-27](https://openairdocs.org/saib/NE-11-27): Fuel Injector Nozzle - CF6-80 Improperly Welded Fuel Nozzles. Issued Apr 5, 2011 - [SAIB NE-10-37](https://openairdocs.org/saib/NE-10-37): Engine Fuel and Control: FADEC Fuel Metering Valve Resolver Feedback Faults. Issued Jul 12, 2010 - [SAIB NE-08-44](https://openairdocs.org/saib/NE-08-44): Engine Thrust Reverser Transcowl Clevis Pin. Issued Sep 3, 2008 - [SAIB NE-07-01](https://openairdocs.org/saib/NE-07-01): Dual engine flameouts on twin engine airplanes. Issued Oct 12, 2006 ## NTSB investigations None matched to N493MC. ## FAA accident and incident reports None matched to N493MC. ## Service difficulty reports (301, newest 50) As reported by operators and repair stations. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. - [SDR UIEA2026022200065](https://openairdocs.org/sdr/UIEA2026022200065), Feb 22, 2026: ADC. FAULTED. ALT DISAGREE EICAS MSG LEVEL FLIGHT AT FL280 GREATER THAN 200' L 27760 R/R CAPT LH AIR DATA COMPUTER IAW AMM 34-12-01/401 AND IPC 25-71-31-01A. OPS CHECK GOODDENT AREA REPAIRED AS PER SRM 55-10-01-2R-2 REPAIR 2 FIG 201. NO FURTHER DEFECTS NOTED

) - [SDR UIEA2025031800354](https://openairdocs.org/sdr/UIEA2025031800354), Apr 18, 2025: CHANNEL. CRACKED. STA 720 RH UPPER DECK TENSION TIE FWD CHANNEL FOUND CRACK APPROX 3/8" IN LENGTH(

TENSION TIE REPAIRED AS PER SRM 53-20-30-2R-1 REPAIR 1 (REPAIR IS CAT B). NO - [SDR UIEA2025032100363](https://openairdocs.org/sdr/UIEA2025032100363), Apr 18, 2025: STRUCTURE. CORRODED. M/D STA 1175 RBL 11.33 CHORD LWR SURFACE CORRODED(

CHORD REPLACED AS PER SRM 51-10-02. NEW CHORD HOLES TRANSFERRED AS PER SRM 51-40-05. NEW CHORD INSTALLED AS - [SDR UIEA2025032100364](https://openairdocs.org/sdr/UIEA2025032100364), Apr 18, 2025: LUG. CRACKED. INTERCOSTAL LUG FITTING AT STA 1000 RBL 11.33 FOUND CRACK(

INTERCOSTAL LUG FITTING REPLACEMENT AS PER ATLAS AIR EO 4453C024 REV 4 PART 7 STEP 3 CONDITION 11. - [SDR UIEA2025032200374](https://openairdocs.org/sdr/UIEA2025032200374), Apr 18, 2025: SHEAR TIE. CRACKED. SHEAR TIE AT STA 1000 RBL 33.99 FOUND CRACK(

SHEAR TIE REPLACEMENT AS PER ATLAS AIR EO 4453C024 REV 4 PART 8 STEP 2 CONDITION 13 AND RI-53-14-17485 REV A. NO - [SDR UIEA2025032300380](https://openairdocs.org/sdr/UIEA2025032300380), Apr 18, 2025: RIB. CRACKED. R/H H/STAB TIP CLOSURE RIB FOUND LOWER CHORD CRACKED(

CRACK LOWER CHORD REPLACED AS PER SRM 51-10-02. NEW LOWER CHORD HOLES TRANSFERED AS PER SRM 51-40-05. NE - [SDR UIEA2025032300381](https://openairdocs.org/sdr/UIEA2025032300381), Apr 18, 2025: RIB. CRACKED. R/H H/STAB TIP CLOSURE RIB FOUND WEB CRACKED(

CRACK WEB REPLACED AS PER SRM 51-10-02. NEW WEB HOLES TRANSFERED AS PER SRM 51-40-05. NEW WEB INSTALLED AS PER S - [SDR UIEA2025032300382](https://openairdocs.org/sdr/UIEA2025032300382), Apr 18, 2025: RIB. CRACKED. RH H.STAB TIP CLOSURE RIB FOUND UPPER CHORD CRACKED(

CRACK UPPER CHORD REPLACED AS PER SRM 51-10-02. NEW UPPER CHORD HOLES TRANSFERRED AS PER SRM 51-40-05. NE - [SDR UIEA2025032500385](https://openairdocs.org/sdr/UIEA2025032500385), Apr 18, 2025: BULKHEAD. CRACKED. LH BS 1480 B/HEAD VERTICAL WEB I/B AREA FOUND CRACK(

VERTICAL WEB CRACK AREA REPAIRED A PER SRM 53-40-08-2R-1 REPAIR FIG 201 AND RI-53-40-17541 REV B. NO FURT - [SDR UIEA2025032500386](https://openairdocs.org/sdr/UIEA2025032500386), Apr 18, 2025: BULKHEAD. CRACKED. RH BS 1480 B/HEAD VERTICAL WB I/B AREA FOUND CRACK(

VERTICAL WEB CRACK AREA REPAIRED AS PER SRM 53-40-08-2R-1 REPAIR 1 FIG 201 AND RI-53-40-17541 REV B. NO FU - [SDR UIEA2025032500387](https://openairdocs.org/sdr/UIEA2025032500387), Apr 18, 2025: SKIN. WORN. #3 RH CORE COWL UPPER AFT AREA FND WORN OUT(

WORN OUT AREA REPAIRED AS PER SRM 54-41-01-2R-5 REPAIR 5 FIG 202 DETAIL III. NO FURTHER DEFECTS NOTED

) - [SDR UIEA2025032700391](https://openairdocs.org/sdr/UIEA2025032700391), Apr 18, 2025: SKIN. DAMAGED. FUS SECTION 48 APPROX STA 2658 - STA 2701, WL 280-WL 340 AREA FOUND FUS SKIN SEVERAL RIVETS LOOSE(

SKIN REPLACED AS PER RI-53-80-17492 REV B. NO FURTHER DEFEC - [SDR UIEA2025032700394](https://openairdocs.org/sdr/UIEA2025032700394), Apr 18, 2025: SKIN. DEBONDED. LHW O/B FORE FLAP LOWER T/E O/B AREA FOUND DEBOND(

PERFORMED PERMANENT REPAIR AS PER SRM 51-70-07 PAR 5. A. NO FURTHER DEFECTS NOTED

) - [SDR UIEA2025032800395](https://openairdocs.org/sdr/UIEA2025032800395), Apr 18, 2025: SKIN. DAMAGED. RHW I/B MID FLAP O/B T/E SCREW HOLE FOUND ELONGATED(

PERFORMED PERMANENT REPAIR AS PER SRM 51-70-07 PAR 5. K. NO FURTHER DEFECTS NOTED

) - [SDR UIEA2025032800396](https://openairdocs.org/sdr/UIEA2025032800396), Apr 18, 2025: SKIN. DELAMINATED. LH ELEVATOR UPPER I/B AREA FOUND DELAMINATION(

PERFORMED PERMANENT REPAIR AS PER SRM 51-70-07 PAR 5. A. NO FURTHER DEFECTS NOTED

) - [SDR UIEA2025032800397](https://openairdocs.org/sdr/UIEA2025032800397), Apr 18, 2025: SKIN. CHAFED. RHW I/B AILERON LOWER O/B AREA FOUND CHAFING(

PERFORMED PERMANENT REPAIR AS PER SRM 51-70-06 PAR 5. G. NO FURTHER DEFECTS NOTED

) - [SDR UIEA2025032800398](https://openairdocs.org/sdr/UIEA2025032800398), Apr 18, 2025: SKIN. PUNCTURED. LHW O/B FORE FLAP LOWER T/E MID AREA FOUND PUNCH(

PERFORMED PERMANENT REPAIR AS PER SRM 51-70-07 PAR 5. A. NO FURTHER DEFECTS NOTED

) - [SDR UIEA2025032800399](https://openairdocs.org/sdr/UIEA2025032800399), Apr 18, 2025: SKIN. DELAMINATED. LHW O/B MID FLAP MOST O/B L/E FAIRING FOUND DELAMINATION(

PERFORMED PERMANENT REPAIR AS PER SRM 51-70-07 PAR 5. A. NO FURTHER DEFECTS NOTED

) - [SDR UIEA2025032800400](https://openairdocs.org/sdr/UIEA2025032800400), Apr 18, 2025: ACCESS DOOR. WORN. #2 PYLON I/B ACCESS DOOR #462ER FOUND 2EA SCREW HOLES WORN(

PANEL FABRICATED AS PER RI-54-50-17522 REV A . NO FURTHER DEFECTS NOTED

) - [SDR UIEA2025032800401](https://openairdocs.org/sdr/UIEA2025032800401), Apr 18, 2025: SKIN. BULGED. LHW I/B FORE FLAP LOWER SURFACE O/B PANEL FOUND BULGE UP(

PERFORMED PERMANENT REPAIR AS PER SRM 51-70-10 REPAIR 4 FIG.202. NO FURTHER DEFECTS NOTED

) - [SDR UIEA2025032800402](https://openairdocs.org/sdr/UIEA2025032800402), Apr 18, 2025: SKIN. BULGED. LHW I/B FORE FLAP LOWER SURFACE O/B PANEL FOUND BULGE UP(

PERFORMED PERMANENT REPAIR AS PER SRM 51-70-10 REPAIR 4 FIG.202. NO FURTHER DEFECTS NOTED

) - [SDR UIEA2025032800403](https://openairdocs.org/sdr/UIEA2025032800403), Apr 18, 2025: SKIN. BULGED. RHW I/B FORE FLAP LOWER SURFACE I/B PANEL FOUND BULGE UP(

PERFORMED PERMANENT REPAIR AS PER SRM 51-70-10 REPAIR 4 FIG.202. NO FURTHER DEFECTS NOTED

) - [SDR UIEA2025032800404](https://openairdocs.org/sdr/UIEA2025032800404), Apr 18, 2025: SKIN. BULGED. RHW I/B FORE FLAP LOWER SURFACE O/B PANEL FOUND BULGE UP(

PERFORMED PERMANENT REPAIR AS PER SRM 51-70-10 REPAIR 4 FIG.202. NO FURTHER DEFECTS NOTED.

) - [SDR UIEA2025032800405](https://openairdocs.org/sdr/UIEA2025032800405), Apr 18, 2025: SKIN. CHAFED. RHW I/B AFT FLAP UPPER SURFACE MOST I/B PANEL FOUND CHAFING(

PERFORMED PERMANENT REPAIR AS PER RI-57-53-17513 REV. A. NO FURTHER DEFECTS NOTED

) - [SDR UIEA2025032800406](https://openairdocs.org/sdr/UIEA2025032800406), Apr 18, 2025: SKIN. CHAFED. RHW I/B AFT FLAP UPPER SURFACE MOST O/B PANEL FOUND CHAFING(

PERFORMED PERMANENT REPAIR AS PER RI-57-53-17526 REV. A. NO FURTHER DEFECTS NOTED

) - [SDR UIEA2025032800407](https://openairdocs.org/sdr/UIEA2025032800407), Apr 18, 2025: SKIN. SCRATCHED. LHW O/B AFT FLAP UPPER SURFACE I/B PANEL FOUND PUNCH(

PERFORMED PERMANENT REPAIR AS PER SRM 51-70-10 REPAIR 4 FIG.201. NO FURTHER DEFECTS NOTED

/

&NBSP - [SDR UIEA2025032800408](https://openairdocs.org/sdr/UIEA2025032800408), Apr 18, 2025: SKIN. SCRATCHED. LHW O/B AFT FLAP UPPER SURFACE O/B PANEL FOUND SCRATCH(

PERFORMED PERMANENT REPAIR AS PER RI-57-58-17523 REV. A. NO FURTHER DEFECTS NOTED

) - [SDR UIEA2025032800409](https://openairdocs.org/sdr/UIEA2025032800409), Apr 18, 2025: SKIN. SCRATCHED. LHW O/B AFT FLAP UPPER SURFACE MID PANEL FOUND SCRATCH(

PERFORMED PERMANENT REPAIR AS PER RI-57-58-17523 REV. A. NO FURTHER DEFECTS NOTED

) - [SDR UIEA2025032800410](https://openairdocs.org/sdr/UIEA2025032800410), Apr 18, 2025: FRAME. CRACKED. LH BS 2231 FRAME STR 16 ONE EACH FASTENER HOLE FOUND 2EA CRACK.(

STR 16 AND STR 17L CRACK AREA REPAIRED AS PER RI-53-60-17501 REV A. NO FURTHER DEFECTS NOTED< - [SDR UIEA2025032800411](https://openairdocs.org/sdr/UIEA2025032800411), Apr 18, 2025: FRAME. CRACKED. LH BS 2231 FRAME STR 17 ONE EACH FASTENER HOLE FOUND CRACK(

STR 16L AND STR 17L CRACK AREA REPAIRED AS PER RI-53-60-17501 REV A. (WORK DETAIL REFER WO.4545643 - [SDR UIEA2025032800412](https://openairdocs.org/sdr/UIEA2025032800412), Apr 18, 2025: SPAR. CRACKED. RHW I/B MID FLAP REAR SPAR WEB O/B EDGE FWD CRACK(

REAR SPAR WEB CRACK AREA REPAIRED AS PER RI-57-53-17514 REV A. NO FURTHER DEFECTS NOTED

) - [SDR UIEA2025032800413](https://openairdocs.org/sdr/UIEA2025032800413), Apr 18, 2025: FLOORBEAM. PUNCTURED. AFT CARGO COMPT RH STA 1880 RBL 36 FLOOR BEAM SUPPORT WEB FOUND PUNCH(

WEB REPAIRED AS PER RI-53-65-17515 REV A. NO FURTHER DEFECTS NOTED

) - [SDR UIEA2025032800414](https://openairdocs.org/sdr/UIEA2025032800414), Apr 18, 2025: WEB. CRACKED. 1EA CRACK WAS FOUND ON WEB AROUND 2EA FASTENERS ON LHW MID SPAR WEB UPPER FROM WS 382 TO WS 441(

M/D SPAR WEB REPAIRED AS PER RI-57-20-17528 REV A. NO FURTHER - [SDR UIEA2025032800415](https://openairdocs.org/sdr/UIEA2025032800415), Apr 18, 2025: WEB. CRACKED. 5EA CRACK WERE FOUND ON WEB AROUND 2EA FASTENERS ON RHW MID SPAR WEB UPPER FROM WS 382 TO WS 411(

MID SPAR WEB REPAIRED AS PER RI-57-20-17527 REV A. NO FURTHE - [SDR UIEA2025040100420](https://openairdocs.org/sdr/UIEA2025040100420), Apr 18, 2025: KEELBEAM. CORRODED. KEEL BEAM PNL 191KK AFT SUPPORT BEAM FOUND CORROSION(

KEEL BEAM PNL 191KK APT CORROSION SUPPORT BEAM REPLACED AS PER SRM 51-10-02. NEW SUPPORT BEAM HOLES TRAN - [SDR UIEA2024081500832](https://openairdocs.org/sdr/UIEA2024081500832), Aug 15, 2024: OXYGEN MASK. LEAKING. CREW REPORTED O2 LEAK, INSUFFICIENT QTY FOR CONTINUING TO ANC, DIVERTED TO YYC. CAPT O2 MASK HAD JUST BEEN REPLACED IN JFK PRIOR TO DEPARTURE.(

FOUND LOOSE FI - [SDR UIEA2024061400519](https://openairdocs.org/sdr/UIEA2024061400519), Jun 14, 2024: FMC. FAILED. LEFT FMC FAILURE(

R/R LEFT FMC IAW AMM 34-61-01 AND IPC 34-61-01-01B. OPS CHECK GOOD. TEST PASSED.

) - [SDR UIEA2024061100513](https://openairdocs.org/sdr/UIEA2024061100513), Apr 11, 2024: DETECTOR. FAULTED. EQUIPMENT COOLING EICAS MESSAGE ON DEPARTURE FROM HKG. NON NORMAL CHECKLIST COMPLETED. EICAS CLEARED. AFTER LANDING EICAS MESSAGE RETURNED. REF CMC MESSAGE 2151 - [SDR UIEA2024020500071](https://openairdocs.org/sdr/UIEA2024020500071), Feb 5, 2024: DOOR. MISSING. DURING WALK AROUND, FOUND LH BODY GEAR STRUT OUTBOARD DOOR MISSING.(

INSTALLED LH BODY LANDING GEAR STRUT OUTBOARD DOOR AND CK OK PER AMM 32-14-06.

) - [SDR UIEA2023040100300](https://openairdocs.org/sdr/UIEA2023040100300), Apr 1, 2023: UNKNOWN. UNKNOWN. RIGHT SUPERNUMERARY SEAT OXYGEN MASKS DEPLOYED (UNCOMMANDED) IN FLIGHT(

TRANSFER TO DMI 183092 PER MEL 35-21-01-02-01 CAT C, DUE DATE 11APR2023. 2 RIGHT SUPER - [SDR UIEA2023031000243](https://openairdocs.org/sdr/UIEA2023031000243), Mar 9, 2023: TRANSCEIVER. UNKNOWN. ATB-RH HF RADIO NOT TRANSMITTING.(

REMOVED AND REPLACED RH HF TRANSCEIVER PER AMM 23-11-00. OPS CHECK GOOD

) - [SDR UIEA2023020500091](https://openairdocs.org/sdr/UIEA2023020500091), Mar 1, 2023: NONE. NONE. STA 900 LBL68" U/D TENSION TIE AFT CHANNEL 1EA HOLE FOUND CRACKED.(

STA 900 LBL68" U/D TENSION TIE AFT CHANNEL 1EA HOLE CRACK AREA OVERSIZE REPAIRED IAW EO 44 - [SDR UIEA2023021400112](https://openairdocs.org/sdr/UIEA2023021400112), Mar 1, 2023: NONE. NONE. RH 920 UPPER DECK TENSION TIE AT AFT CHANNEL FOUND 1 EA FASTENER HOLE CRACK AT 1 O/C POSITION(

STA 920 RBL 67" TENSION TIE CHANNEL 1 EA FASTENER HOLE CRACK AR - [SDR UIEA2023021400113](https://openairdocs.org/sdr/UIEA2023021400113), Mar 1, 2023: NONE. NONE. RH 880 UPPER DECK TENSION TIE AFT CHANNEL FOUND 1EA FASTENER HOLE CRACK AT 10 O/C POSITION(

STA 880 RBL 70.25 TENSION TIE CHANNEL 1 EA FASTENER HOLE CRACK ARE - [SDR UIEA2023021400114](https://openairdocs.org/sdr/UIEA2023021400114), Mar 1, 2023: NONE. NONE. RH 840 UPPER DECK TENSION TIE AFT CHANNEL FOUND 1 EA FASTENER HOLE CRACK AT 10 O/C POSITION(

STA 840 RBL 74.5" TENSION TIE CHANNEL 1 EA FASTENER HOLE CRACK AR - [SDR UIEA2023021500118](https://openairdocs.org/sdr/UIEA2023021500118), Mar 1, 2023: NONE. NONE. RHW L/E OLES 1520 LWR FIXED PNL SUPPORT CHANNEL FOUND CORROSION.(

RHW L/E OLES 1520 TO OLES 15835 LWR FIXED PNL SUPPORT CHANNEL P/N: 65B11862-30 CORROSION DAM - [SDR UIEA2023021500120](https://openairdocs.org/sdr/UIEA2023021500120), Mar 1, 2023: NONE. NONE. F/D COCKPIT CENTER CONSOLE ADJACENT OF PEDDLE LHS PANEL FOUND CRACK(

F/D - COCKPIT LH PILOTS FORWARD PANEL SUPPORT WEB CRACK AREA REPAIRED IAW RI-53-00-16058 All 301: https://openairdocs.org/aircraft/N493MC/reports.md ## STCs that may be installed (OpenAirDocs) (6) Approved for this aircraft's airframe or engine model, in force first, then newest. The registry doesn't record which STCs an aircraft has; its records do. ### Approved for the engine (GE CF6-80 series) - [STC SE01543CH](https://openairdocs.org/stc/SE01543CH): Replace Hamilton Sundstrand P/N 778839-13, 778839-14, 778839-19, 778839-20, 778839-37, 778839-38, 816682-1, 840618-2, 880724 carbon bushings with Cook Airtomic P/N AIR22947 Slotted Entry Busing in the High Pressure Shutoff Valve. Cook Airtomic. Lists CF6-80A - [STC SE01478CH](https://openairdocs.org/stc/SE01478CH): Installation of Cook Airtomic alignment joint p/n AIR 22912. Cook Airtomic. Lists CF6-80C2 Series - [STC SE00969CH](https://openairdocs.org/stc/SE00969CH): Install AeroControlex P/N 2605290-001 variable stator feedback control cable. AeroControlex Group TransDigm Inc. Lists CF6-80A - [STC SE01471AT](https://openairdocs.org/stc/SE01471AT): Replace right and left side Rohr, Inc. fire detection harness on GE CF6-80C2 engine. Unison Industries. Lists CF6-80C2 Series - [STC SE00463LA](https://openairdocs.org/stc/SE00463LA): Install fireproof blankets on the engine fan reverser intermediate fireseal, in lieu of fireproof intumescent coating. This STC is jointly by owned by Hi Temp Insulation and MRA Systems acting through Middle River Aircraft Systems, 103 Chesapeake Park Plaza, Baltimore, MD 21220. Hi Temp Insulation Inc. Lists CF6-80C2A1 - [STC SA2227SO](https://openairdocs.org/stc/SA2227SO): Installation of wiring and associated components for utilization of the Rolls Royce, Inc., ARINC, interface/readers UT1317 or UT1317/1, for the purpose of acquisition, recording, and analysis in real time of engine/aircraft/ systems. (767 SERIES POWERED BY RR RB-11-524 SERIES. Rolls Royce, Inc ## Related - Other Boeing 747-47UF aircraft: https://openairdocs.org/model/boeing-747-47uf/aircraft.md - The GE CF6-80 series engine: https://openairdocs.org/engine/ge-cf6-80-series.md --- 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.