# N780NC: 1979 Mcdonnell Douglas DC-9-51, registration cancelled 2014-06-17

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: June 17, 2014
- Status when cancelled: Valid registration
- Airframe: [Mcdonnell Douglas DC-9-51](https://openairdocs.org/model/mcdonnell-douglas-dc-9-51) (registry code 3022051)
- Engine: [Pratt & Whitney JT8D-17 series](https://openairdocs.org/engine/pratt-whitney-jt8d-17-series) (registry code 52049)
- Data sheets: [TCDS A6WE](https://openairdocs.org/tcds/A6WE), [TCDS E2EA](https://openairdocs.org/tcds/E2EA) (OpenAirDocs)
- Serial number: 48102
- Year built: 1979
- Type of aircraft: Fixed wing multi engine
- Engine type: Turbo-jet
- Airworthiness: Standard, transport
- Airworthiness date: December 13, 1979
- Certificate issued: December 31, 2009
- Last registry action: May 1, 2013
- Mode S code: AA91B5
- 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/N780NC
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=780NC
- Page: https://openairdocs.org/deregistered/N780NC-2014-06-17

From the FAA registry file of October 29, 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 Mcdonnell Douglas DC-9-51: https://openairdocs.org/model/mcdonnell-douglas-dc-9-51.md

## Service difficulty reports (153, newest 50)

Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

- [SDR DALA13069740871](https://openairdocs.org/sdr/DALA13069740871), Dec 16, 2013: FUSE. FAILED. SEAT MOUNTED EMERGENCY LIGHTS IN FIRST CLASS INOPERATIVE. REPLACED FUSE IN SERVICE DOOR EXIT SIGN IAW AMM 33-52. OPS CHECKED GOOD.
- [SDR DALA13059960871](https://openairdocs.org/sdr/DALA13059960871), Nov 8, 2013: FUSE. INOPERATIVE. FIRST CLASS SEATS EMERGENCY LIGHTS OUT. REPLACED FUSE IN BATTERY PACK. OPS CHECKED GOOD IAW WDM 33-51-04.
- [SDR DALA13045940871](https://openairdocs.org/sdr/DALA13045940871), Sep 19, 2013: BATTERY PACK. INOPERATIVE. DURING NON ROUTINE CHECK, FOUND OVERWING EXIT SIGN AFT DOOR EMERGENCY LIGHTS INOPERATIVE. REPLACED BATTERIES ON AFT LT AND RT EMERGENCY EXIT LIGHTS AND FUNCTION
- [SDR DALA13044970871](https://openairdocs.org/sdr/DALA13044970871), Sep 14, 2013: TEE FITTING. CRACKED. DURING INSPECTION, FOUND AFT PRESSURE BULKHEAD TEE CAP BETWEEN STR 13 TO 14L HAS CRACK INDICATION MEASURED THE TOTAL LENGTH IS 4". REMOVED DAMAGED BULKHEAD TEE 
- [SDR DALA13049340871](https://openairdocs.org/sdr/DALA13049340871), Sep 13, 2013: TEE FITTING. CRACKED. DURING INSPECTION, THE AFT PRESSURE BULKHEAD TEE WAS FOUND WITH A .5" LONG CRACK AT L14L. REPAIRED IAW ER/A 516484-14AD .
- [SDR DALA13019820871](https://openairdocs.org/sdr/DALA13019820871), Apr 28, 2013: BATTERY PACK. INOPERATIVE. LAST 4 ROWS OF SEAT MOUNTED EMERGENCY LIGHTS INOP. REPLACED BATTERYS AT EMERGENCY EXIT SIGN IAW AMM 33-52. OPS CKS GOOD.
- [SDR DALA13017990871](https://openairdocs.org/sdr/DALA13017990871), Apr 17, 2013: WIRE. EXPOSED. EMERGENCY LIGHT WIRES EXPOSED BENEATH 12 D AND E. SECURED WIRE RUN.
- [SDR DALA12016450871](https://openairdocs.org/sdr/DALA12016450871), Dec 14, 2012: SKIN. DAMAGED. FS 370 L24-26R, FORWARD EDGE OF FWD CARGO DOOR CUT-OUT, ACFT SKIN DAMAGED IN 4 PLACES. ACCOMPLISHED REPAIR AT FS 370 L24-26R FORWARD EDGE OF FORWARD CARGO DOOR 
- [SDR DALA12015950871](https://openairdocs.org/sdr/DALA12015950871), Dec 12, 2012: SKIN. DAMAGED. DURING L CHECK, EDGE DAMAGE WAS FOUND AT THE FORWARD EDGE OF THE FORWARD CARGO DOOR BETWEEN L-24R AND L-26R. DAMAGE WAS REPAIRED IAW ER/A 509300-14.
- [SDR DALA12016460871](https://openairdocs.org/sdr/DALA12016460871), Nov 29, 2012: SKIN. BULGED. FS 106 - 110 L27R, BELLY SKIN BULGED. ONE PROTRUDING FASTENER HEAD AND ONE FASTENER HEAD PULLING THROUGH SKIN. ACCOMPLISHED REPAIR IAW ERA 509303-14 REV O.
- [SDR DALA12003630871](https://openairdocs.org/sdr/DALA12003630871), Jul 18, 2012: WIRE. BROKEN. DURING LINE CHECK, MAINTENANCE FOUND THE EMERGENCY PATH LIGHTING AT SEAT 11C TO BE INOPERATIVE. MAINTENANCE RETERMINATED THE BROKEN WIRE AND RETURNED THE AIRCRA
- [SDR DALA12003620871](https://openairdocs.org/sdr/DALA12003620871), Jul 18, 2012: WIRE HARNESS. INOPERATIVE. DURING LINE CHECK, MAINTENANCE FOUND THE EMERGENCY PATH LIGHTING AT SEAT 7C TO BE INOPERATIVE. MAINTENANCE REPLACED THE SEAT WIRE HARNESS AND RETURNED THE AIRCR
- [SDR DALA1170509871](https://openairdocs.org/sdr/DALA1170509871), Dec 19, 2011: LIGHT. INOPERATIVE. FOUND TWO AFT CATWALK EMERGENCY EGRESS PATH LIGHTS INOP. REPLACED BULBS, CHECK OK.
- [SDR DALA1151469871](https://openairdocs.org/sdr/DALA1151469871), Sep 1, 2011: BATTERY. DISCHARGED. MAINTENANCE FOUND CABIN EMERGENCY CEILING LIGHTS ABOVE SEATS 5, 7 AND 9 WOULD NOT ILLUMINATE. MAINTENANCE REPLACED BATTERIES IN RESPECTIVE EMERGENCY BATTERY PAC
- [SDR DALA1129579871](https://openairdocs.org/sdr/DALA1129579871), Apr 27, 2011: FRAME. CRACKED. MAIN CABIN RT STA 734 MAIN FRAME CRACKED APPROX 2.5 INCHES. R & R MAIN FRAME, MAIN CABIN RT STA 734 L0R-L18R IAW SRM 51-10-4, 51-30-2, 51-30-5 & 51-30-8. NEW FR
- [SDR DALA1129029871](https://openairdocs.org/sdr/DALA1129029871), Apr 26, 2011: KEELBEAM. DAMAGED. KEEL BEAM AREA BETWEEN GEAR DOORS THRU ACCESS 5501 UPPER LT ANGLE CRACKED APPROX 2 INCHES. CUT AND REMOVED DAMAGED SECTION OF ANGLE. NDT IAW NDT SPM 06-10-01, A
- [SDR DALA1129019871](https://openairdocs.org/sdr/DALA1129019871), Apr 26, 2011: SUPPORT ANGLE. CRACKED. AFT ACCESSORY STA 1258, RT FAN INBD VERTICAL SUPPORT ANGLE CRACKED AT BOTTOM FASTENER. FABRICATED REPAIR DOUBLERS RT FAN INBD VERTICAL SUPPORT ANGLE AFT ACCY ST
- [SDR DALA1128939871](https://openairdocs.org/sdr/DALA1128939871), Apr 26, 2011: CUSP WEB. CORRODED. MAIN CABIN RT CUSP WEB BETWEEN STA 370 AND 389 HAS CORROSION. CPCP TASK 58-53309 GAINED ACCESS. R & R RT CUSP WEB STA 370-389 FROM .032 7075T6. RESTORED AREA IA
- [SDR DALA1128899871](https://openairdocs.org/sdr/DALA1128899871), Apr 26, 2011: FRAME. CHAFED. AFT ACCESSORY STA 1209, LT LONG 4 VALVE CHAFING INTO PREVIOUS REPAIR ON WEB. REMOVED EXISTING REPAIR IAW SRM51-30-2. FABRICATED NEW DOUBLER .032 7075-T6 IAW SRM
- [SDR DALA1128819871](https://openairdocs.org/sdr/DALA1128819871), Apr 25, 2011: FITTING. CORRODED. MAIN CABIN BETWEEN STA 693 AND 712 RT LONG 19 BATH TUB FITTING HAS CORROSION. CORROSION FOUND OUT OF LIMITS IAW SRM 53-01. REMOVED OLD FITTING, LOCATED, DRILLED
- [SDR DALA1128799871](https://openairdocs.org/sdr/DALA1128799871), Apr 25, 2011: DOUBLER. DENTED. DENT IN UPPER WINDOW BELT DOUBLER, STA 712, LT SIDE. DENT MEASURES .017" X 7" DX=41 TOOL H9340. DENT FOUND TO BE OUT OF LIMITS IAW SRM 53-04, FIG 38. R & R WIND
- [SDR DALA1128729871](https://openairdocs.org/sdr/DALA1128729871), Apr 25, 2011: DOOR FRAME. CORRODED. E & E COMPARTMENT AFT LOWER END OF AIRSTAIR DOOR CUTOUT HAS CORROSION. CORR ON CORNER ANGLE FOUND TO BE OUT OF LIMITS IAW SRM 53-01 FIG.1 75% MAT LOSS.CUT ACCES
- [SDR DALA1128709871](https://openairdocs.org/sdr/DALA1128709871), Apr 25, 2011: FRAME. CHAFED. FS 1190 AT L16R FRAME HAS HOLE CHAFED THRU BY ORIGINAL AUG VALVE. CUT OUT DAMAGED AREA 1 1/2"X 3/4" IAW SRM 53-03 FIG4. NDT VERIFIED DAMAGE REMOVED. NO CRACKS I
- [SDR DALA1128699871](https://openairdocs.org/sdr/DALA1128699871), Apr 25, 2011: FRAME. CORRODED. E & 3 COMP AIRSTAIR DOOR LOWER INTERIOR FRAME HAS 2EA SPOTS OF CORROSION. RECEIVED AND REPLACED WITH SERVICEABLE DOOR PER SRM 51-30-1.
- [SDR DALA1128219871](https://openairdocs.org/sdr/DALA1128219871), Apr 19, 2011: BRACKET. CRACKED. AFT ACC COMPT FS1258 CTR, VERTICAL BRACKET IS CRACKED. LOWER RT SIDE RADIUS GAINED ACCESS. STOP DRILLED CRACK. NDT VERIFIED CRACK CONTAINMENT. FABRICATED AND IN
- [SDR DALA1127539871](https://openairdocs.org/sdr/DALA1127539871), Apr 19, 2011: SPAR. CRACKED. LT ELEVATOR OTBD T/E SPAR CRACKED, OTBD HOLE IN SPAR ELONGATED. CUT OUT DAMAGED SECTION OF CHANNEL 7" LONG IAW SRM 51-70-5. NDT TO VERIFY DAMAGED CONTAINED. ORI
- [SDR DALA1127379871](https://openairdocs.org/sdr/DALA1127379871), Apr 19, 2011: WEB. DAMAGED. MAIN CABIN-INNER WEB ABOVE AFT LT ESCAPE DOOR STA 753-775 HAS DAMAGE TO FASTENER HOLE. HEAT TREATED WEB TO 2024-T3. LOCATED, DRILLED, DEBURRED NEW WEB IAW DRW 5
- [SDR DALA1127319871](https://openairdocs.org/sdr/DALA1127319871), Apr 19, 2011: SHEAR TIE. CRACKED. CABIN FRAME STA 1116 BETWEEN LONGERONS 15-14L SHEAR TIE CRACKED. REMOVED,FABED AND REINSTALLED NEW SHEAR TIE IAW SRM 51-30-2, 51-30-5, 51-13-3,51-10-2, 51-10-3,
- [SDR DALA1127309871](https://openairdocs.org/sdr/DALA1127309871), Apr 19, 2011: FRAME. CRACKED. AFT ACCESSORY, RT STA 1209, FRAME WEB IS CRACKED MULTIPLE PLACES BETWEEN L9R AND L13R. REMOVED WEB AT STA 1209, BL L9R-L13R IAW SRM 51-30-2. RECEIVED MAT FOR DO
- [SDR DALA1128269871](https://openairdocs.org/sdr/DALA1128269871), Apr 18, 2011: ATTACH ANGLE. CRACKED. CABIN, CTR WING, STA 712, RBL 45. L-ANGLE CRACKED. FLOORBEAM TO TANK ATTACH ANGLE. REMOVED AND INSTALLED ANGLE IAW SRM 51-30-5 & 51-30-1 FABED ANGLE FROM 7075-0
- [SDR DALA1127029871](https://openairdocs.org/sdr/DALA1127029871), Apr 18, 2011: SKIN. DAMAGED. FUSELAGE EXT DRILL START IN SKIN AT STA 1116 L14L CUT OUT DAMAGE. 1" AREA IAW SRM 53-04, FIG 46, NDT VERIFIED NO CRACKS IAW BDT SPM 06-10-01.001. FABED REPAIR D
- [SDR DALA1126899871](https://openairdocs.org/sdr/DALA1126899871), Apr 18, 2011: FITTING. CORRODED. MAIN CABIN BETWEEN STA 693 AND 712 LEFT LONGERON 19 BATH TUB FITTING HAS CORROSION CPCP TASK 53-53300. REMOVED FITTING IAW DC-9 SRM 51-30-5. LOCATED, DRILLED AN
- [SDR DALA1126859871](https://openairdocs.org/sdr/DALA1126859871), Apr 18, 2011: DOUBLER. GOUGED. FWD CARGO DOOR FWD LATCH MECHANISM CUT OUT AND DOUBLER GOUGED. REMOVED OLD DOUBLER AND FABRICATED NEW DOUBLER IAW DC9 SRM 52-05 FIGURE 26B. MATERIAL .032 TY301 
- [SDR DALA1127059871](https://openairdocs.org/sdr/DALA1127059871), Apr 17, 2011: SKIN. GOUGED. FUSELAGE EXT LT SIDE FUSELAGE SKIN HAS A GOUGE APPROX 2" LONG AT BS 1087 AND ABOVE LONG 15L. REMOVED GOUGE IAW 53-33 FIG 3. MAT ID .032 6AL-HV PO 1120167. FABBE
- [SDR DALA1126739871](https://openairdocs.org/sdr/DALA1126739871), Apr 16, 2011: BEARING. LOOSE. LEFT NR 4 FLAP HINGE FLAP SIDE BEARING LOOSE AT PIVOT POINT. REMOVED AND REPLACED WITH NEW NR 4 FLAP HINGE P/N 5912153-501 IAW DC-9 SRM 51-30-5 P241.
- [SDR DALA1126639871](https://openairdocs.org/sdr/DALA1126639871), Apr 16, 2011: FLOOR PANEL. DAMAGED. MAIN CABIN FLOOR PANEL 19 I/B EDGE FWD FASTENER HOLE HAS NO EDGE LEFT. FABRICATED NEW FLOOR PANEL SKIN AND HAT CHANNELS IAW ERA 4890838-14 FROM .040" 7075-T6, A
- [SDR DALA1126729871](https://openairdocs.org/sdr/DALA1126729871), Apr 15, 2011: SUPPORT ANGLE. CRACKED. MAIN CABIN STA 775 BL-0 VERTICAL SUPPORT ANGLE BELOW FLOOR CRACKED. REMOVED AND INSTALLED 2EA SUPPORT ANGLE AND 1EA ATTACH ANGLE BRACKET IAW DC9 SRM 51-30-02 AN
- [SDR DALA1126009871](https://openairdocs.org/sdr/DALA1126009871), Apr 14, 2011: FLOOR PANEL. SHEARED. MAIN CABIN FLOOR PANEL 62 SEVERAL FASTENERS SHEARED OFF AND LOOSE ON AFT END. REMOVED TEN EA SHEARED OFF AND LOOSE FASTENERS ON MAIN CABIN FLOOR PNL 62 IAW SRM 
- [SDR DALA1125999871](https://openairdocs.org/sdr/DALA1125999871), Apr 14, 2011: CUSP WEB. DAMAGED. CUSP WEB STATION 693-753 HAS CRACKS AND CORROSION THROUGHOUT PANEL. FOUND ON FURTHER OPEN UP FOR FRAME 734 REPLACEMENT CARD 6C/176. FABRICATED NEW CUSP WEB & RI
- [SDR DALA1125989871](https://openairdocs.org/sdr/DALA1125989871), Apr 14, 2011: ANGLE. BROKEN. MAIN CABIN STA 1079 TO 1118 LBL 56 Z-ANGLE BROKEN SEVERAL PLACES AT FASTENER HOLES CPCP TASK 58-53310. REMOVED & REPLACED SECTION OF Z-ANGLE STATION 1079-1125 L
- [SDR DALA1125979871](https://openairdocs.org/sdr/DALA1125979871), Apr 14, 2011: SKIN. CRACKED. AFT CARGO ABOVE DOOR CUTOUT AT APPROXIMATELY STATION 1108 PREVIOUS STOP DRILL IS CRACKED. REMOVED EXISTING REPAIR. CUT OUT DAMAGED AREA 2"X 2". HFEC INSP IAW DC
- [SDR DALA1125969871](https://openairdocs.org/sdr/DALA1125969871), Apr 14, 2011: FRAME. CRACKED. AFT ACCESSORY CANTED FRAME 1303 CRACKED AT L16L LT SIDE. REMOVED CRACK IAW 53-03 FIG 4. CRACK REMOVED HFEC USING ZETECPER NDT SPM 06-10-01. RECEIVED MAT .040 70
- [SDR DALA1127479871](https://openairdocs.org/sdr/DALA1127479871), Apr 13, 2011: INTERCOSTAL. CRACKED. MAIN CABIN-FS 764 BELOW RT AFT EMERGENCY EXIT VERTICAL INTERCOSTAL IS CRACKED. REMOVED 1 EA VERTICAL INTERCOSTAL, STOPPED DRILLED CRACK .25 DIA HFEC INSP STOP D
- [SDR DALA1125869871](https://openairdocs.org/sdr/DALA1125869871), Apr 13, 2011: STATIC WICK. DAMAGED. LT ELEVATOR AT O/B STATIC WICK BASE ATTACH POINT OB OF STATIC WICK BASE AFT END CAP DOUBLER HAS A MISDRILLED RIVET, INCOMING DAMAGE, FOUND ON INVESTIGATION OF D
- [SDR DALA1125859871](https://openairdocs.org/sdr/DALA1125859871), Apr 13, 2011: SKIN. DAMAGED. LT ELEVATOR OTBD T/E SKIN UPPER AND LOWER SURFACE OF SKIN HAS 3 EA MISDRILLED HOLES. CUT OUT DAMAGED AREA ON UPPER AND LOWER SURFACE. UPPER CUT OUT 2" X 1/2". L
- [SDR DALA1125849871](https://openairdocs.org/sdr/DALA1125849871), Apr 13, 2011: STRUCTURE. CRACKED. LT ELEVATOR AT OTBD STATIC WICK BASE ATTACH POINT, STATIC WICKBASE DOUBLER CRACKED UPPER SURFACE. REMOVED STATIC WICK BASED DOUBLER IAW SRM 51-30-2. ORIG. MAT.0
- [SDR DALA1125839871](https://openairdocs.org/sdr/DALA1125839871), Apr 13, 2011: WEDGE. CRACKED. LT ELEVATOR OTBD T/E WEDGE CRACKED. FOUND ON REMOVAL OF STATIC WICK BASE DOUBLER. REMOVED T/E WEDGE IAW SRM 51-30-2. REPAIRED USING REPAIR KIT IAW SRM 51-70-1. 
- [SDR DALA1125819871](https://openairdocs.org/sdr/DALA1125819871), Apr 13, 2011: FLOOR PANEL. DAMAGED. MAIN CABIN FLOOR PANEL 54 HAS SEVERAL MISSING AND LOOSE FASTENERS AND FIBER DAMAGE ON TOP FWD SURFACE OF PANEL. FABRICATED NEW FLOOR PANEL USING S2912282 HAT CH
- [SDR DALA1125809871](https://openairdocs.org/sdr/DALA1125809871), Apr 13, 2011: FLOORBEAM. CRACKED. MAIN CABIN FS 598, LBL 0-22 FLOOR SUPPORT IS CRACKED. REMOVED CRACKED FLOOR SUPPORT IAW SRM 51-30-05. FAB NEW FLOOR SUPPORT. MAT ID .050 2024 T3 IAW SRM 53-12-2
- [SDR DALA1125799871](https://openairdocs.org/sdr/DALA1125799871), Apr 13, 2011: LONGERON. CRACKED. AFT ACCESSORY CANTED STA 1260, L7L CRACKED NDT VERIFIED. REMOVED LONGERON L7L FROM STA 1254 TO 1286. LOCATED AND DRILLED NEW LONGERON PN 2777922-4 AND SPLICE PN

All 153: https://openairdocs.org/deregistered/N780NC-2014-06-17/reports.md

## NTSB investigations (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB CHI01LA245](https://openairdocs.org/ntsb/CHI01LA245), Jul 25, 2001: McDonnell Douglas DC-9-51 (N780NC), Detroit, MI, no damage. Probable cause: The passenger (an off duty flight attendant) disregarded the flight crews warning regarding turbulence along with the seat belt sign which had been turned on.

## FAA accident and incident reports (3)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Accident 20010725026559A](https://openairdocs.org/incident/20010725026559A), Jul 25, 2001: Doug DC951 (N780NC), Detroit, MI, No damage. (-23) During descent into Detroit, and with the "fasten seat belt" light on, one passenger, a commuting flight attendant, joyce flynn, left her seat to go into…
- [Incident 19920329015249I](https://openairdocs.org/incident/19920329015249I), Mar 29, 1992: Doug DC951 (N780NC), Detroit, MI. Pilot left his assigned altitude due to a TCAS alert to climb. Pilot reported a near miss with N525US.
- [Incident 19861014061199I](https://openairdocs.org/incident/19861014061199I), Oct 14, 1986: Doug DC951 (N780NC), Memphis, TN. Returned due to tail compartment high temperature light. Found number 8 line leaking.

## Other aircraft with N780NC

- [Registered now](https://openairdocs.org/aircraft/N780NC): Embraer-Empresa Brasileira De ERJ 170-100 LR, S/N 17000280, built 2009

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