# N670US: 1990 Boeing 747-451, registration cancelled 2018-08-22 - Type: Cancelled registration (FAA registry, deregistered aircraft) - Cancelled: August 22, 2018 - Status when cancelled: Valid registration - Airframe: [Boeing 747-451](https://openairdocs.org/model/boeing-747-451) (registry code 1384940) - Engine: [Pratt & Whitney PW4000 series](https://openairdocs.org/engine/pratt-whitney-pw4000-series) (registry code 52119) - Data sheets: [TCDS A20WE](https://openairdocs.org/tcds/A20WE) (OpenAirDocs) - Serial number: 24225 - Year built: 1990 - Type of aircraft: Fixed wing multi engine - Engine type: Turbo-fan - Airworthiness: Experimental, showing compliance - Airworthiness date: August 8, 1990 - Certificate issued: December 31, 2009 - Last registry action: April 13, 2016 - Mode S code: A8DD8B - Owner when cancelled: [Delta Air Lines Inc](https://openairdocs.org/faa-owner/DELTA%20AIR%20LINES%20INC) - Location: [Atlanta, GA](https://openairdocs.org/faa-place/GA/Atlanta) - Owner type: Corporation - Owner's area on the map: 33.6604° N, 84.3865° W: Placed by OpenAirDocs at the center of ZIP code 30354, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based - The mark today: https://openairdocs.org/aircraft/N670US - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=670US - Page: https://openairdocs.org/deregistered/N670US-2018-08-22 From the FAA registry file of November 12, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe. ADs and bulletins for the Boeing 747-451: https://openairdocs.org/model/boeing-747-451.md ## Service difficulty reports (146, newest 50) Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. - [SDR DALA2017100907380](https://openairdocs.org/sdr/DALA2017100907380), Oct 6, 2017: BATTERY PACK. INOPERATIVE. DURING A CHECK, FOUND THE RT UPPER DECK DOOR BATTERY OK LIGHT INOPERATIVE. REPLACED THE BATTERY PACK IAW AMM 52-23. BULB AND LENS CHECKED OK. BOTH SYSTEMS CHECK - [SDR DALA2017082506392](https://openairdocs.org/sdr/DALA2017082506392), Aug 22, 2017: PANEL. MISSING. FOUND MISSING PANEL AND DAMAGED SUPPORT BEAM AT OTBD SIDE OF THE NR 11 KRUEGER FLAP PANEL. DAMAGE WAS OUT OF LIMITS. ACCOMPLISHED SUPPORT BEAM REPAIR IAW ER/A 5 - [SDR DALA2017081706282](https://openairdocs.org/sdr/DALA2017081706282), Aug 16, 2017: BATTERY. DISCHARGED. PREFLIGHT CHECK FOUND U/D LEFT DOOR SLIDE LIGHT TEST NO ILLUMINATE. REMOVED AND REPLACED LIGHT BATTERY PER AMM 33-51. TEST OK AND CHKD NORMAL. - [SDR DALA2017072105609](https://openairdocs.org/sdr/DALA2017072105609), Jul 19, 2017: TIRE. FAILED. DURING TAKE-OFF, THE NR 11 TIRE BLEW, NO AIRFRAME VIBRATIONS OR ABNORMAL AIRCRAFT INDICATIONS. FLT CONTINUED TO DESTINATION AND WILL DECLARED AN EMERGENCY ON AR - [SDR DALA2017062905056](https://openairdocs.org/sdr/DALA2017062905056), Jun 26, 2017: BATTERY PACK. INOPERATIVE. EMERGENCY LIGHT AT UPPER DECK SEAT 73A-75A, AND RIGHT UPPER DECK DOOR EXIT SIGN INOPERATIVE. REPLACED THE BATTERIES FOR M335 AND M312. OPS CHECKED OK IAW AMM 33 - [SDR DALA2017042403326](https://openairdocs.org/sdr/DALA2017042403326), Apr 23, 2017: HEATER. ODOR. FLIGHT ATTENDANTS COMPLAINED ABOUT FUMES IN F/A CREW REST AREA. TURNED OFF RECIRCULATION FANS AND ODOR DISSIPATED. MAINTENANCE DISCOVERED THE ODOR COMING FROM H - [SDR DALA2017032902612](https://openairdocs.org/sdr/DALA2017032902612), Mar 28, 2017: BATTERY PACK. DISCHARGED. UPPER DECK DOOR "GROUND DOOR TEST" TEST FAIL AT RT SIDE. REPLACED R/H SIDE BATTERY PACK. - [SDR DALA2017032002221](https://openairdocs.org/sdr/DALA2017032002221), Mar 18, 2017: POWER SUPPLY. INOPERATIVE. LOW 77A TO 79A EMERGENCY LIGHT WON'T ILLUMINATE. REPLACED POWER SUPPLY (M334), CHECK OK REF AMM 33-50. - [SDR DALA2017010300053](https://openairdocs.org/sdr/DALA2017010300053), Jan 1, 2017: BULB. INOPERATIVE. EMERGENCY LIGHT ON THE CEILING BETWEEN SEATS 79A AND K WILL NOT ILLUMINATE. REPLACED THE BULBS IAW AMM. - [SDR DALA2017010300052](https://openairdocs.org/sdr/DALA2017010300052), Jan 1, 2017: BULB. INOPERATIVE. EMERGENCY LIGHT BETWEEN UPPER DOORS, AFT SIDE ON THE CEILING WON'T ILLUMINATE. REPLACED THE BULBS IAW AMM 33-51. - [SDR DALA2016123010163](https://openairdocs.org/sdr/DALA2016123010163), Dec 29, 2016: BATTERY PACK. INOPERATIVE. DURING SERVICE CHECK, FOUND UPPER DECK EXIT SIGN INOPERATIVE. FOUND BATTERY WEAK AT POWER SUPPLY M7050. REMOVED AND INSTALLED A NEW BATTERY IAW AMM 33-51. - [SDR DALA2016090606611](https://openairdocs.org/sdr/DALA2016090606611), Sep 4, 2016: BATTERY PACK. UNSECURE. EMERGENCY EXIT SIGN AT UPPER DECK RIGHT DOOR INOPERATIVE. RESEATED BATTERY AT POWER SUPPLY. SYSTEM OPERATION NORMAL. - [SDR DALA2016090606625](https://openairdocs.org/sdr/DALA2016090606625), Sep 3, 2016: POWER SUPPLY. MALFUNCTIONED. LEFT EXTERIOR EMERGENCY LIGHTS AT 1ST AND 2ND FROM FORWARD ILLUMINATION. REPLACED THE POWER SUPPLY. - [SDR DALA2016071205266](https://openairdocs.org/sdr/DALA2016071205266), Jul 9, 2016: BATTERY. DISCHARGED. UPPER DECK AFT EXIT SIGN WOULD NOT ILLUMINATE. MAINTENANCE REPLACED THE BATTERY AT M6378 POWER SUPPLY. SYSTEM OPS IS NORMAL. - [SDR DALA2016060604412](https://openairdocs.org/sdr/DALA2016060604412), Jun 4, 2016: BATTERY PACK. WEAK. UPPER DECK EMRGENCY LIGHT INOPERATIVE AT SEAT 73A TO 75A. FOUND BATTERY WEAK ON "M335" POWER SUPPLY AND REPLACED THE BATTERY. PERFORMED LIGHTS CKD OK IAW B744 A - [SDR DALA2016020300852](https://openairdocs.org/sdr/DALA2016020300852), Feb 3, 2016: DOOR FRAME. CRACKED. ONE CRACK FOUND ON RT MED NR 5 AFT UPPER CORNER OF THE CUTOUT LENGTH 0.7". REPAIRED CRACK AT RT MED NR 5 DOOR AFT UPPER CORNER OF THE CUTOUT AREA IAW SRM 51-40- - [SDR DALA2016020300851](https://openairdocs.org/sdr/DALA2016020300851), Feb 3, 2016: DOOR FRAME. CRACKED. ONE CRACK FOUND ON LT MED NR 5 AFT UPPER CORNER OF THE CUTOUT LENGTH 1.5". REPAIRED CRACK AT LT MED NR 5 DOOR AFT UPPER CORNER OF THE CUT OUT AREA IAW SRM 51-40 - [SDR DALA2016012800722](https://openairdocs.org/sdr/DALA2016012800722), Jan 27, 2016: SHEAR WEB. CRACKED. UPPER LOBE TENSION TIES BS 1120 LT SLOPING SHEAR WEB TO SUPPORTING STRUCTURE, INBD DOUBLER FOUND CRACK. REPAIR UPPER LOBE TENSION TIE BS 1120, LT SLOPING SHEAR - [SDR DALA2016012800721](https://openairdocs.org/sdr/DALA2016012800721), Jan 27, 2016: SHEAR TIE. CRACKED. UPPER FUSELAGE INTERIOR STRUCTURE BS 1120, S10L - S11L. INNER CHORD SHEAR TIE ANGLE FOUND CRACKED. REPLACED UPPER FUSELAGE INSTERIOR STRUCTURE BS 1120 S10A LT - - [SDR DALA2015092105745](https://openairdocs.org/sdr/DALA2015092105745), Sep 18, 2015: LIGHT. INOPERATIVE. DURING SERVICE CHECK, FOUND DOOR 5R MOUNTED EMERGENCY LIGHT INOPERATIVE. REPLACED DOOR 5R MOUNTED EMERGENCY LIGHT ASSEMBLY. - [SDR DALA14033516310](https://openairdocs.org/sdr/DALA14033516310), May 30, 2014: LIGHT. INOPERATIVE. FOUND EMERGENCY LIGHT INOPERATIVE AT LT OVERWING MOST FWD. REPLACED EMERGENCY LIGHT ASSY. - [SDR DALA14007846310](https://openairdocs.org/sdr/DALA14007846310), Feb 2, 2014: STRINGER. CORRODED. BULK CARGO BAY BS 1920-1940, STRINGER 50L FOUND CORROSION. STRINGER REPAIRED IAW 53-60-03, REPAIR 2. - [SDR DALA14007836310](https://openairdocs.org/sdr/DALA14007836310), Feb 2, 2014: STRINGER. CORRODED. BULK CARGO BAY BS 1920-1940, STRINGER 50L FOUND CORRODED. STRINGER REPAIRED IAW 53-60-03, REPAIR 2. - [SDR DALA14006176310](https://openairdocs.org/sdr/DALA14006176310), Jan 30, 2014: FRAME. CRACKED. BULKHEAD OUTER RING FRAME AT S20R FOUND CRACKED, FRAME REPAIRED IAW ERA 520415-14, REV ORIGINAL. - [SDR DALA14005506310](https://openairdocs.org/sdr/DALA14005506310), Jan 26, 2014: FLOOR SUPPORT. CORRODED. FLOOR SUPPORT COMPLETELY CRACKED AROUND TWO NUTPLATES. BETWEEN BS 1700-1720 BL 0. FLOOR SUPPORT ANGLE REPLACED IAW SRM 51-40-02. - [SDR DALA14005466310](https://openairdocs.org/sdr/DALA14005466310), Jan 26, 2014: FLOORBEAM. CORRODED. SEVERAL AREAS OF CORROSION DISCOVERED ON FLOORBEAM UPPER FLANGE AT BS 1700, RBL 25-28. FLOORBEAM REPAIRED IAW SRM 53-60-51 REPAIR 2. - [SDR DALA14005516310](https://openairdocs.org/sdr/DALA14005516310), Jan 23, 2014: SKIN. CRACKED. RT WING L/E RWS 697, AFT SURFACE CRACK AT 3 PYLON OUTSIDE. REPAIRED IAW ERA 520413-14, REV. ORIGINAL. - [SDR DALA14005256310](https://openairdocs.org/sdr/DALA14005256310), Jan 22, 2014: SEAT TRACK. CORRODED. SEAT TRACK CORRODED BS 940, RBL 34, WL 199. REPLACED SEAT TRACK. - [SDR DALA14005246310](https://openairdocs.org/sdr/DALA14005246310), Jan 19, 2014: SEAT TRACK. CRACKED. SEAT TRACK CRACKED BS 2140-2160. INSTALLED REPAIR ANGLES AND STRAPS, REPAIRED IAW SRM 53-00-52. - [SDR DALA14006186310](https://openairdocs.org/sdr/DALA14006186310), Jan 17, 2014: STANCHION. CRACKED. STANCHION CRACKED AT BS 460 RBL91.67 "A" ZONE. REPAIRED IAW ERA 520411-14, REV ORIGINAL HFEC INSPECTION CARRIED OUT, NO CRACK FOUND IAW NDT MANUAL PART 6 53-30- - [SDR DALA14001766310](https://openairdocs.org/sdr/DALA14001766310), Jan 9, 2014: SKIN. CRACKED. CRACK FOUND IN THE FUSELAGE SKIN AT NR 3 LT MAIN ENTRY DOORWAY CUTOUT, LOWER FORWARD CORNER. REPAIRED IAW EM CARD 5331-01209-02A. - [SDR DALA13046396310](https://openairdocs.org/sdr/DALA13046396310), Sep 22, 2013: LIGHT. INOPERATIVE. GALLEY 3C MID FLOOR PATH LIGHT ON STANCHEON WAS BROKEN OFF AND INOPERATIVE. REPAIRED AND REPLACED LIGHT ASSY. CHECKED NORMAL IAW AMM 33-52. OK FOR SERVICE. - [SDR DALA13021116310](https://openairdocs.org/sdr/DALA13021116310), May 6, 2013: LIGHT. INOPERATIVE. EMERGENCY LIGHTS LOCATED SEAT ROWS 22-31 ON RT SIDE AT ACFT ARE INOPERATIVE. REPAIRED FLOOR PATH LIGHT AT 3R FLT SEAT. LIGHTS CHECKED NORMAL. OK FOR SERVICE REF - [SDR DALA13019976310](https://openairdocs.org/sdr/DALA13019976310), Apr 26, 2013: BATTERY PACK. INOPERATIVE. UPPER DECK RT DOOR EMERGENCY LIGHT INOPERATIVE. REPLACED BATTERY, CHECKED OK IAW AMM 33-51. - [SDR DALA12010006310](https://openairdocs.org/sdr/DALA12010006310), Oct 13, 2012: CONNECTOR. UNSECURE. EMERGENCY LIGHTS INOPERATIVE ROWS 25-31. FOUND CONNECTOR OFF. REINSTALLED CONNECTOR, OPS CHECK GOOD. - [SDR DALA1224166310](https://openairdocs.org/sdr/DALA1224166310), Apr 10, 2012: LIGHT. INOPERATIVE. DURING INSPECTION FOUND G1B (437) LOWER ASSY CENTER CART DIVIDER EMERGENCY LIGHT INOP. MAINTENANCE INSTALLED #63-2500-3-1817 COVER PLATE AND #63-3300-3-0059 LIG - [SDR DALA1221286310](https://openairdocs.org/sdr/DALA1221286310), Apr 8, 2012: CONNECTOR. DISCONNECTED. DURING A MAINTENANCE VISIT, THE EMERGENCY FLOOR LIGHTS AT SEATS 29 TO 31ABC WERE FOUND TO BE INOPERATIVE. MAINTENANCE RECONNECTED THE EMERGENCY LIGHT PLUG AT SE - [SDR DALA1163446310](https://openairdocs.org/sdr/DALA1163446310), Nov 3, 2011: FLOORBEAM. CRACKED. CRACK WAS FOUND ON FLOORBEAM WEB AT STA 840 RBL 5 WL 305 IN CABIN. L=1.5 SCEPTRE LOG PAGE ENTERED AND DEFERRED FOR SDR REPORTING. PERFORMED CATEGORY "B" REPAIR - [SDR DALA1161466310](https://openairdocs.org/sdr/DALA1161466310), Nov 3, 2011: ANGLE. DENTED. 12/821 FWD CARGO DOOR A REPAIR ANGLE HAS A DENT. D=0.04". MAINTENANCE REPLACED WITH A NEW REPAIR ANGLE PER B747-400 SRM 51-70-11 FIG1. - [SDR DALA1161156310](https://openairdocs.org/sdr/DALA1161156310), Oct 31, 2011: SKIN. CORRODED. DURING L CHECK AT AMECO, CORROSION WAS FOUND ON THE FWD CARGO DOOR INNER SKIN, STA 580-596. ER/A 495585-14 SECT I WAS ACCOMPLISHED, FOLLOW ON ACTION IS REQUIRED - [SDR DALA1160806310](https://openairdocs.org/sdr/DALA1160806310), Oct 31, 2011: WEB. CRACKED. (LP 0393847) 47/230 MAIN DECK NR 2 RT DOOR CUTOUT FWD LOWER CORNER AREA REVEAL WEB CRACK. BS 800. S-24R. L=0.5". - [SDR DALA1160486310](https://openairdocs.org/sdr/DALA1160486310), Oct 25, 2011: ANGLE. NICKED. FWD CARGO DOOR LOWER A ANGLE WAS FOUND WITH NICKED. REPAIRED THE NICK PER SRM 51-70-11 P1 REV 80. - [SDR DALA1167856310](https://openairdocs.org/sdr/DALA1167856310), Oct 19, 2011: FLOORBEAM. DAMAGED. (L/P 0404898) 34/230 FLAT BED ITEM (AIR LOG ITEM 22): FIGURE 8 HOLE AT STA 520 FLOORBEAM RT SIDE AT RBL 70. CORRECTED PER B747-400 SRM 53-10-51 REPAIR 3, COMPLE - [SDR DALA1158926310](https://openairdocs.org/sdr/DALA1158926310), Oct 19, 2011: SKIN. CRACKED. CRACK ON LEADING EDGE OF RT WING. REPAIRED IAW ERA 495590-14. - [SDR DALA1158896310](https://openairdocs.org/sdr/DALA1158896310), Oct 19, 2011: SILL. CRACKED. 3/210 RT NR 1 DOOR UPPER SILL WEB CRACK BS 460 S-16R L=0.8" ENTR LOG PAGE ENTERED AND DEFERRED FOR SDR REPORTING. - [SDR DALA1158916310](https://openairdocs.org/sdr/DALA1158916310), Oct 4, 2011: SKIN. CRACKED. CRACK ON LEADING EDGE OF RT WING. REPAIRED IAW ERA 49559414. - [SDR DALA1156576310](https://openairdocs.org/sdr/DALA1156576310), Oct 2, 2011: INTERCOSTAL. CORRODED. SEVERAL CORROSION WERE FOUND ON THE FLOOR INTERCOSTAL LOWER SURFACE OF BULK CARGO COMPARTMENT AT STA 1920-STA 1980, LBL 45 MAX S=5" X 3". REPAIRED THE CORROSION - [SDR DALA1156556310](https://openairdocs.org/sdr/DALA1156556310), Sep 30, 2011: FRAME. CRACKED. FUSELAGE FRAME CRACK BS 1160. S-9R - 10R. L=1.2". MAINTENANCE REPAIRED THE DAMAGE FRAME PER B747-400 SRM 53-40-07 REPAIR 6. - [SDR DALA1156566310](https://openairdocs.org/sdr/DALA1156566310), Sep 30, 2011: WEB. DENTED. DENT WAS FOUND ON THE TOP WEB OF AFT CARGO COMPARTMENT TORQUE BOX AT STA 1688 LBL 27. S=0.8"X0.8". MAINTENANCE REPAIRED THE DENT PER B747-400 SRM 51-70-13 P201. - [SDR DALA1156406310](https://openairdocs.org/sdr/DALA1156406310), Sep 29, 2011: DOUBLER. CRACKED. CRACK WAS FOUND ON DOOR FRAME REVEAL DOUBLER OF LT MAIN ENTRY DOOR FWD CUTOUT STA 2231 S-21L-S-22L L:3". PERFORMED THE DOOR REVEAL DOUBLER REPAIR PER B747-400 S All 146: https://openairdocs.org/deregistered/N670US-2018-08-22/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, except the copies of manufacturers’ service documents, which belong to their rights holders.