# Boeing 747-45EF - Type: Aircraft model (FAA registry) - Registry code: 1384961 - Manufacturer (registry): BOEING - Model: 747-45EF - Aircraft type: Fixed wing multi engine - Category: Airplane - Engines: 4 ยท Turbo-fan - Seats: 495 - Weight class: 20,000 lb and over - Certification: Type certificated - Registered aircraft: 3 - Page: https://openairdocs.org/model/boeing-747-45ef Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker. ## ADs that may apply (OpenAirDocs) Matched to this model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment. None matched. ## Registered aircraft (3) - [N485MC](https://openairdocs.org/aircraft/N485MC): [Umb Bank Trustee](https://openairdocs.org/faa-owner/UMB%20BANK%20TRUSTEE), [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City), built 2000, S/N 30607 - [N486MC](https://openairdocs.org/aircraft/N486MC): [Umb Bank Na Trustee](https://openairdocs.org/faa-owner/UMB%20BANK%20NA%20TRUSTEE), [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City), built 2001, S/N 30608 - [N487MC](https://openairdocs.org/aircraft/N487MC): [Umb Bank Na Trustee](https://openairdocs.org/faa-owner/UMB%20BANK%20NA%20TRUSTEE), [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City), built 2002, S/N 30609 ## NTSB investigations None matched to aircraft with this model. ## FAA accident and incident reports None matched to aircraft with this model. ## Service difficulty reports (348, newest 50) As reported by operators and repair stations, by the model named in the report. - [SDR UIEA2026101600989](https://openairdocs.org/sdr/UIEA2026101600989), Oct 16, 2026: CONTROLLER. FAULTED. BLD 1 OVHT/PRV CAUTION(

REPLACED PRV CONTROLLER AND ENG 1 BLEED SYSTEM. OPS CHECK NORMAL IAW AMM 36-11-20

) - [SDR UIEA2026101200981](https://openairdocs.org/sdr/UIEA2026101200981), Oct 12, 2026: PACKING. MISSING. 1:30HR INTO FLIGHT AT 36000 ENG 4 OIL QTY INDICATED 10 MAGENTA, DECREASED APPROX EVERY 10-20 MINS. 0 QTS INDICATED AT TOP OF DESCENT, DURING DESCENT IT INDICATE - [SDR UIEA2026093000932](https://openairdocs.org/sdr/UIEA2026093000932), Oct 7, 2026: SKIN. GOUGED. DURING INSPECTION OF THE LOWER LOBE FWD CARGO DOOR STRINGER 34R SKIN LAP SPLICE, A GOUGE WAS FOUND C/T UPPER SKIN. WORK ACCOMPLISHED IAW EN#3792-26, REV 0. NO F - [SDR UIEA2026100600954](https://openairdocs.org/sdr/UIEA2026100600954), Oct 7, 2026: MOUNT. CRACKED. FOUND CRACK INDICATION DURING OPEN HOLE INSPECTION IN OTBD BARREL NUT BORE OF #2 PYLON AFT ENGINE MOUNT BULKHEAD FITTING ASSY.(

NACELLE STRUT NO.2 AFT ENGINE - [SDR UIEA2026100600955](https://openairdocs.org/sdr/UIEA2026100600955), Oct 7, 2026: SKIN. CRACKED. DURING LFEC INSPECTION AT LH WING FRONT SPAR UPPER SKIN BETWEEN WS621-WS637, FOUND 02 EA FASTENERS WITH CRACKED INDICATIONS.(

REFER TO EN 3800-26 REV 0 FOR WO - [SDR UIEA2026100600956](https://openairdocs.org/sdr/UIEA2026100600956), Oct 7, 2026: SKIN. CRACKED. DURING LFEC INSPECTION AT RH WING FRONT SPAR LOWER SKIN BETWEEN WS540-WS560 FOUND 01 EA FASTENER WITH CRACK.(

REFER TO EN#3799-26 REV 0 FOR WORK PERFORMED. NO - [SDR UIEA2026100600957](https://openairdocs.org/sdr/UIEA2026100600957), Oct 7, 2026: FITTING. CORRODED. DURING OPEN HOLE INSPECTION AT RIGHT UPPER SPLICE FITTING AT STA2598 BULKHEAD, FOUND 01 EA ELONGATED HOLE AND 02 EA HOLES WITH CRACK INDICATION AT 9 O'CLOCK POS - [SDR UIEA2026100600958](https://openairdocs.org/sdr/UIEA2026100600958), Oct 7, 2026: FITTING. CORRODED. DURING OPEN HOLE INSPECTION AT LEFT UPPER SPLICE FITTING AT STA 2598 BULKHEAD, FOUND 01 EA HOLE WITH CORROSION AT 9 O'CLOCK POSITION AND 01 EA WITH CRACK INDICA - [SDR UIEA2026100600959](https://openairdocs.org/sdr/UIEA2026100600959), Oct 7, 2026: SKIN. NOT REPORTED. HFEC INTERNAL SKIN INSPECTION AT STA1820 S34L UNABLE TO BE COMPLETED AS INSPECTION AREA IS BLOCKED BY INTERNAL STRUCTURE.(

REFER EN #3772-26 REV 0 FOR WORK PE - [SDR UIEA2026100100934](https://openairdocs.org/sdr/UIEA2026100100934), Oct 7, 2026: SEAT TRACK. CHAFED. MAIN DECK COMPT SEAT TRACK BETWEEN STA 1480 - 1500 LBL 11.33 FOUND WORN DUE TO CHAFING. SPLICE REPAIR PERFORMED IAW EN3764-26 REV 0. NO FURTHER DEFECTS NOTED.) - [SDR UIEA2026100200938](https://openairdocs.org/sdr/UIEA2026100200938), Oct 7, 2026: DOOR FRAME. NOT REPORTED. DURING LFEC INSPECTION AT MAIN DECK SIDE CARGO DOOR CUTOUT, FOUND 01 EA FASTENER AT STA1780 S22L. UNABLE TO INSPECT DUE TO LFEC PROBE NOT BEING ABLE TO SIT PROP - [SDR UIEA2026100400942](https://openairdocs.org/sdr/UIEA2026100400942), Oct 7, 2026: FLOORBEAM. CORRODED. FOUND CORROSION ON MAIN DECK FLOOR BEAM AT STA 460 LBL 53.(

REPAIR CARRIED OUT ON CORROSION FLOOR BEAM PER EN 3785-26 REV 0. NO FURTHER DEFECTS NOTED.

) - [SDR UIEA2026100500946](https://openairdocs.org/sdr/UIEA2026100500946), Oct 7, 2026: SUPPORT FRAME. MODIFICATION. SECTION 48 BODY STA 2598 BULKHEAD H/STAB HINGE SUPPORT FRAME MOD, FOUND RH 08 EA FASTENERS AFFECT THE TRIPLER LOCATION.(

REFER TO EN #3801-26 REV 0 FOR WORK P - [SDR UIEA2026100500947](https://openairdocs.org/sdr/UIEA2026100500947), Oct 7, 2026: FUEL TANK. DENTED. FWD CGO COMPT CENTER TANK AT STA 991 RBL 4 WL 128 FOUND DENTED(

REFER TO EN#3682-26 REV 0 FOR WORK PERFORMED. NO FURTHER DEFECTS NOTED.

) - [SDR UIEA2026100500948](https://openairdocs.org/sdr/UIEA2026100500948), Oct 7, 2026: SUPPORT RIB. CRACKED. LH BODY GEAR W/W DOOR ACTUATOR UPPER RIB SUPPORT FITTING FOUND CRACKED AT MID O/B AREA.(

REFER TO EN #3760-26 REV 0 FOR WORK PERFORMED. NO FURTHER DEFECTS NOT - [SDR UIEA2026100500949](https://openairdocs.org/sdr/UIEA2026100500949), Oct 7, 2026: ACCESS PANEL. BULGED. CARGO DOOR AT 1898 ACCESS PANEL #836JL FOUND BULGING DUE TO CORROSION.(

REFER TO EN#3757-26 REV 0 FOR WORK PERFORMED. NO FURTHER DEFECTS NOTED.

) - [SDR UIEA2026100500951](https://openairdocs.org/sdr/UIEA2026100500951), Oct 7, 2026: FUEL TANK. DENTED. FWD CARGO CENTER TANK AT BS 991, LBL 15, WL 128, FOUND DENTED.(

REFER TO EN#3682 REV 0 FOR WORK PERFORMED. NO FURTHER DEFECTS NOTED

) - [SDR UIEA2026100500953](https://openairdocs.org/sdr/UIEA2026100500953), Oct 7, 2026: BEARING. MIGRATED. RT WING T/E FLAP TRACK #6 FITTING SUSPECT MIGRATION. RT WING T/E FLAP TRACK #6 FWD FITTING BEARING REMOVED AND INSTALLED OVERSIZED BEARING AS PER EN 3687-26 REV - [SDR UIEA2026092300909](https://openairdocs.org/sdr/UIEA2026092300909), Oct 7, 2026: SPAR WEB. CORRODED. FOUND CORROSION ON RH WING GEAR W/W CENTER WING REAR SPAR WEB JETTISON PUMP CUTOUT UNDER BONDING STRIP.(

REPAIR ACCOMPLISHED IAW EN# 3635-26 REV 0. NO FURTHER - [SDR UIEA2026092300910](https://openairdocs.org/sdr/UIEA2026092300910), Oct 7, 2026: SPAR WEB. CORRODED. FOUND CORROSION ON LH WING GEAR W/W CENTER WING REAR SPAR WEB JETTISON PUMP CUTOUT UNDER BONDING STRIP.(

REPAIR ACCOMPLISHED IAW EN 3635-26 REV 0. NO FURTHER - [SDR UIEA2026092700917](https://openairdocs.org/sdr/UIEA2026092700917), Oct 7, 2026: BATTERY PACK. NO TEST. DURING THE EMERGENCY LIGHTS BATTERY PACKS TESTS, FOUND M5168 AND M5169 POWER SUPPLY BATTERY PACKS FAILED TO TEST.(

02 EA EMERGENCY BATTERY PACK ASSY M5168 AND - [SDR UIEA2026092900921](https://openairdocs.org/sdr/UIEA2026092900921), Oct 7, 2026: FRAME. CORRODED. FRAME AT STATION 400 RBL 60 FOUND WITH SURFACE CORROSION.(

WORK ACCOMPLISHED ON SURFACE CORROSION AREA AT MAIN E/E EQUIPMENT CTR CMPT FRAME STA 400 RBL 60 PER - [SDR UIEA2026092900924](https://openairdocs.org/sdr/UIEA2026092900924), Oct 7, 2026: FLOORBEAM. CORRODED. DURING HFEC INSPECTION AT FLOOR BEAM UPPER CHORD LOWER SURFACE STA 660 LHS, FOUND CORROSION & CRACK APPROX 0.15" AS MARKED(

WORK ACCOMPLISED IAW EN 3767-2 - [SDR UIEA2026093000928](https://openairdocs.org/sdr/UIEA2026093000928), Oct 7, 2026: BEAM. CORRODED. RH WING FIXED T/E BEAM UPPER CHORD ( P/N: 65B11614-28) FOUND WITH EXFOLIATION CORROSION ON THE INBD TOP EDGE SECTION. LENGTH OF DAMAGE IS APPROX 4".(

SPLICE R - [SDR UIEA2026093000931](https://openairdocs.org/sdr/UIEA2026093000931), Oct 7, 2026: FLOOR SUPPORT. CRACKED. BS 1220, LBL 117, WL 199.30 FLOOR PANEL SUPPORT FOUND CRACKED(

CRACKED FLOOR PANEL SUPPORT REPAIRED AS PER EN #3690-26 REV 0. NO FURTHER DEFECTS NOTED.

) - [SDR UIEA2026091900885](https://openairdocs.org/sdr/UIEA2026091900885), Sep 20, 2026: ENGINE. FAILED. ENGINE 4 FAIL AFTER TAKEOFF. REPLACED NR 4 ENG DURING ENG RUN-UP. NO FAULT MSG; LEAK CHK NML AND OPS CHK NML AS PER AMM 71-00-00, 71-00-02 AND AIPC 71-00-51-06A - [SDR UIEA2026061200464](https://openairdocs.org/sdr/UIEA2026061200464), Jul 29, 2026: FLOORBEAM. CORRODED. M/D BS 1180 LHS O/B BELOW FLOOR INTERCOSTAL WEB FOUND CRACK(

INTERCOSTAL WEB REPAIRED AS PER RI-53-40-18379 REV A. NO FURTHER DEFECTS NOTED

) - [SDR UIEA2026061200465](https://openairdocs.org/sdr/UIEA2026061200465), Jul 29, 2026: WEB. CORRODED. M/D BS 1180 RHS O/B BELOW FLOOR INTERCOSTAL WEB FOUND CRACK(

WEB CRACK AREA REPAIRED AS PER SRM 51-10-02 AND NEW WEB HOLES TRANSFERRED AS PER SRM 51-40-05 AND - [SDR UIEA2026061200466](https://openairdocs.org/sdr/UIEA2026061200466), Jul 29, 2026: FLOORBEAM. CORRODED. M/D BS 1220 LHS O/B BELOW FLOOR INTERCOSTAL WEB FOUND CRACK(

WEB CRACK AREA REPAIRED AS PER RI-53-40-18378 REV A. NO FURTHER DEFECTS NOTED

) - [SDR UIEA2026061300467](https://openairdocs.org/sdr/UIEA2026061300467), Jul 29, 2026: FLOORBEAM. CORRODED. M/D BS 1220 RHS O/B BELOW FLOOR INTERCOSTAL WEB FOUND CRACK(

WEB CRACK AREA REPAIRED AS PER RI-53-40-18381 REV A. NO FURTHER DEFECTS NOTED

) - [SDR UIEA2026061300468](https://openairdocs.org/sdr/UIEA2026061300468), Jul 29, 2026: FLOORBEAM. CORRODED. M/D STA 1200 RBL 105" BELOW FLOOR INTERCOSTAL WEB FOUND CRACKED(

WEB CRACK AREA REPAIRED AS PER RI-53-40-18382 REV A. NO FURTHER DEFECTS NOTED

) - [SDR UIEA2026061300469](https://openairdocs.org/sdr/UIEA2026061300469), Jul 29, 2026: FLOOR SUPPORT. CORRODED. M/D STA 1200 LBL 105 BELOW FLOOR INTERCOSTAL WEB FOUND CRACKED(

WEB REPAIRED AS PER RI-53-40-18377 REV A. NO FURTHER DEFECTS NOTED

) - [SDR UIEA2026061300470](https://openairdocs.org/sdr/UIEA2026061300470), Jul 29, 2026: SEAT TRACK. CORRODED. M/D BS 1020 TO 1070 LBL 11 SEAT TRACK RHS FLANGE BOTTOM SIDE FOUND CORROSION(

SEAT TRACK REPLACED AS PER SRM 51-10-02 AND NEW SEAT TRACK HOLES TRANSFERRED AS - [SDR UIEA2026061300471](https://openairdocs.org/sdr/UIEA2026061300471), Jul 29, 2026: PANEL. CORRODED. RHW L/E UPPER FIXED PANEL O/B EDGE NEAR #3 PYLON O/B FOUND CORROSION(

CHORD REPLACED AND INSTALLED AS PER RI-57-41-18383 REV A. NO FURTHER DEFECTS NOTED

) - [SDR UIEA2026061300472](https://openairdocs.org/sdr/UIEA2026061300472), Jul 29, 2026: STRUCTURE. CORRODED. LHW STA 1241 CETNER LH O/J PUMP CUTOUT FOUND CORROSION(

WEB CORROSION AREA REPAIRED AS PER RI-57-10-18352 REV A. NO FURTHER DEFECTS NOTED

) - [SDR UIEA2026061300473](https://openairdocs.org/sdr/UIEA2026061300473), Jul 29, 2026: STRUCTURE. CORRODED. RHW STA 1241 RH CENTER O/J PUMP CUTOUT FOUND CORROSION(

CORROSION AREA REPAIRED AS PER RI-57-10-18355 REV A. NO DEFECTS NOTED

) - [SDR UIEA2026061300474](https://openairdocs.org/sdr/UIEA2026061300474), Jul 29, 2026: SPAR. CRACKED. LHW - UPPER WING T/E MOST I/B FIXED PNL SUPPORT P/N 65B11532-41 CRACK(

SUPPORT P/N 65B11532-41 REPLACED AS PER RI-57-20-18384 REV A. NO FURTHER DEFECTS NOTED< - [SDR UIEA2026061300475](https://openairdocs.org/sdr/UIEA2026061300475), Jul 29, 2026: FITTING. CRACKED. RH BS 1480 LONGERON EXTENSION FITTING RADIUS AREA FOUND 1EA CRACK(

LONGERON EXTENSION FITTING REPLACED AS PER ATLAS AIR EO 4453A818 REV 20 PART 4. NO FURTHER - [SDR UIEA2026061300476](https://openairdocs.org/sdr/UIEA2026061300476), Jul 29, 2026: DOUBLER. CORRODED. NR 3 FUEL AFT BOOST PUMP FOUND CUTOUT DOUBLER CORROSION. DOUBLER FABRICATED AS PER BOEING DWG 65B19560 AND PL, NEW DOUBLER HOLES TRANSFERRED AS PER SRM 51-40-05 - [SDR UIEA2026061400477](https://openairdocs.org/sdr/UIEA2026061400477), Jul 29, 2026: DOUBLER. CRACKED. RHS STA 2524.4 UPPER LOBE DOUBLER ALONG THE RADIUS FOUND 1EA CRACK APPROX 8" IN LENGTH(

CRACK AREA REPAIRED AS PER ATLAS AIR EO 4453A224 REV 10 PART 2 AND RI- - [SDR UIEA2026061400479](https://openairdocs.org/sdr/UIEA2026061400479), Jul 29, 2026: DOUBLER. CHAFED. RH STA 980 UNDERWING LONGERON AREA FOUND REPAIR DOUBLER ADJ SKIN CHAFING(

SKIN REPAIRED AS PER RI-53-20-18357 REV B. NO FURTHER DEFECTS NOTED&NBSP;

) - [SDR UIEA2026061400480](https://openairdocs.org/sdr/UIEA2026061400480), Jul 29, 2026: FITTING. CORRODED. RT WING T/E L/G SUPPORT BEAM APPROX 200 UPPR CHORD FWD SUPPORT ROD O/B FITTING FOUND CORROSION WEAR #5 FLAP TRACK. FITTING ASSY FABRICATED AS PER BOEING DWG 69B - [SDR UIEA2026061400481](https://openairdocs.org/sdr/UIEA2026061400481), Jul 29, 2026: FRAME. CHAFED. NR 4L CORE COWL NR 2 FRAME PATCH FOUND CHAFING ( COUNT FROM FWD )(

FRAME REPAIRED AS PER SRM 54-41-02-2R-2 REPAIR 2 FIG 201. NO FURTHER DEFECT NOTED

) - [SDR UIEA2026061400482](https://openairdocs.org/sdr/UIEA2026061400482), Jul 29, 2026: LONGERON SPLICE. CRACKED. RH BS 1480 LONGERON EXTENSION FITTING INTERIOR SPLICE FITTING 1EA HOLE FOUND CRACK(

CRACK FASTENER HOLE REPAIRED AS PER RI-53-60-18406 REV A. NO FURTHER DEFEC - [SDR UIEA2026061500487](https://openairdocs.org/sdr/UIEA2026061500487), Jul 29, 2026: ANGLE. CRACKED. RHW L/E ILES APPROX 268.81 UPPER SUPPORT RIB AFT AREA. ANGLE REPLACED AND INSTALLED IAW RI-57-41-18376 REV A. NO FURTHER DEFECTS NOTED. - [SDR UIEA2026061500488](https://openairdocs.org/sdr/UIEA2026061500488), Jul 29, 2026: ANGLE. CRACKED. LHW L/E ILES APPROX 268.81 UPPER SUPPORT RIB AFT CORNER SPLICE FITTING FOUND CRACK. ANGLE REPLACED AND INSTALLED AS PER RI-57-41-18375 REV A. NO FURTHER DEFECTS - [SDR UIEA2026061500489](https://openairdocs.org/sdr/UIEA2026061500489), Jul 29, 2026: PANEL. NICKED. M/D LHS BS 1620 TO 1720 DADO PNL AFT EDGE FOUND NICKED. DADO PANEL NICK AREA REPAIRED AS PER RI-25-21-18349 REV A. NO FURTHER DEFECTS NOTED. - [SDR UIEA2026061500490](https://openairdocs.org/sdr/UIEA2026061500490), Jul 29, 2026: STEP. CRACKED. M/D BS 500 LHS LADDER #7 STEP ( COUNT FROM BOTTOM ) I/B WEB FWD AREA FOUND CRACK(

WEB CRACK AREA REPAIRED AS PER RI-25-13-18347 REV A. NO FURTHER DEFECTS NOTE - [SDR UIEA2026061500491](https://openairdocs.org/sdr/UIEA2026061500491), Jul 29, 2026: STEP. CRACKED. M/D BS 500 LHS LADDER #8 STEP ( COUNT FROM BOTTOM ) I/B WEB FWD AND AFT FOUND CRACK(

I/B WEB FWD AND AFT CRACK AREA REPAIRED AS PER RI-25-13-18348 REV A. NO F All 348: https://openairdocs.org/model/boeing-747-45ef/reports.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.