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National Air Cargo B744 at Bagram on Apr 29th 2013, lost height shortly after takeoff following load shift and stall

A National Air Cargo Boeing 747-400 freighter on behalf of US Mobility Command, registration N949CA performing cargo flight N8-102 from Bagram (Afghanistan) to Dubai Al Maktoum (United Arab Emirates) with 7 crew and cargo consisting of 5 military vehicles, has crashed shortly after takeoff from Bagram Air Base's runway 03 at 15:30L (11:00Z) and erupted into flames near the end of the runway within the perimeter of the Air Base. All 7 crew are reported perished in the crash.

Afghan Authorities immediately denied claims that the crash of a large civilian cargo aircraft was the result of enemy activities. A large fire erupted after the aircraft impacted ground, it appears all crew have been killed.

Coalition Forces reported a civilian large cargo plane crashed shortly after takeoff, at the time of the accident there was no enemy activity around the aerodrome. Rescue and Recovery efforts are under way, the Air Base is currently locked down and the aerodrome is closed.

National Air Cargo confirmed their aircraft N949CA with 7 crew, 4 pilots, 2 mechanics and a load master - initial information had been 8 crew -crashed at Bagram. The airline later added, that the aircraft had been loaded with all cargo in Camp Bastion (Afghanistan, about 300nm southwest of Bagram), the cargo had been inspected at Camp Bastion, the aircraft subsequently positioned to Bagram for a refuelling stop with no difficulty, no cargo was added or removed, however, the cargo was again inspected before the aircraft departed for the leg to Dubai Al Maktoum.

The NTSB reported the Boeing 747-400 was operated by National Air Cargo and destined for Dubai Al Maktoum when it crashed just after takeoff from Bagram and came to rest within the boundaries of the Air Base. All 7 occupants, all American citizens, were killed. Afghanistan's Ministry of Transportation and Commercial Aviation is leading the investigation into the crash, the NTSB have assigned accredited representatives joining the investigation.

Several observers on the ground reported the National Air Cargo Boeing 747-400 had just lifted off and was climbing through approximately 1200 feet when it's nose sharply rose, the aircraft appeared to have stalled and came down erupting in a blaze.

According to a listener on frequency the crew reported the aircraft stalled due to a possible load shift.

A car driver caught the aircraft climbing out and coming down on his car camera, see below.

The aircraft was carrying 5 military vehicles.

On Jun 2nd 2013 accident investigators by the Ministry of Transport and Civil Aviation of Afghanistan reported in a press conference that quickly shifting cargo, consisting of three armored vehicles and two mine sweepers totalling at 80 tons of weight, caused the accident. The cargo slammed so hard at the back of the aircraft, that parts of the aircraft separated and wiring in the back was severed. As result of the shift and loss of aircraft parts the center of gravity moved so far back, that the attitude of the aircraft could no longer be controlled, the nose of the aircraft rose beyond the flying envelope of the aircraft and the aircraft stalled destroying the aircraft and killing all crew in the resulting impact. Parts of the aircraft, that separated as result of the initial load shift, were recovered from the runway. The straps used to tie down the cargo were recovered from the accident site, although charred they provided evidence of having fractured before final impact, it was unclear however, whether the fracture(s) had happened before or after takeoff.

The FAA had released a Safety Alert for Operators on May 20th 2013 regarding securing heavy vehicles in aircraft, see News: FAA concerned about potential safety impact of carrying and restraining heavy vehicle special cargo loads.

On Oct 16th 2014 the NTSB announced that Afghanistan's Authorities have delegated the remainder of the investigation to the NTSB, who had participated in the investigation so far. The NTSB is going to complete the investigation and issue the final report.

National Air Cargo operates three Boeing 747-400s with the registrations N952CA, N919CA and N949CA. N949CA operated into Afghanistan on Apr 28th.

Metars (Bagram, via US Military):

KQSA 291255Z 04008G16KT 9000 -TSRA BKN050CB BKN090 BKN150 09/05 A3003 RMK CB NE MOV NE SLP181 WND DATA ESTMD ALSTG/SLP ESTMD=

KQSA 291231Z 30009G16KT 8000 -TSRA BKN050CB BKN090 BKN150 08/04 A3001 RMK CB NE MOV NE WND DATA ESTMD ALSTG/SLP ESTMD=

KQSA 291229Z 30010G15KT 6000 -TSRAGS BKN050CB OVC100 12/04 A3000 RMK CB OHD MOV N WND DATA ESTMD LSTG/SLP ESTMD=

KQSA 291155Z 33008G17KT 9999 -TSRA SCT050CB BKN090 BKN170 13/04 A2996 RMK CB OHD MOV N SLP139 60000 70000 51014=

KQSA 291155Z COR 33008G17KT 9999 -TSRA SCT050CB BKN090 BKN170 13/04 A2990 RMK CB OHD MOV N SLP139 WND DATA ESTMD ALSTG/SLP ESTMD 60000 70000 51014=

KQSA 291059Z 35011G17KT 9999 FEW050 BKN065 BKN090 14/05 A2993 RMK WND DATA ESTMD ALSTG/SLP ESTMD=

KQSA 291058Z 35011G17KT 9999 FEW050 BKN080CB BKN150 14/05 A2993 RMK LTG DSNT NW SLP124 WND DATA ESTMD ALSTG/SLP ESTMD=

KQSA 291055Z 02007KT 9999 FEW040 BKN080CB BKN150 18/06 A2994 RMK PK WND 06026/1005 WSHFT 1027 LTG DSNT NW CB DSNT NW SLP124 WND DATA ESTMD ALSTG/SLP ESTMD=

KQSA 290955Z COR 10017G30KT 9999 SCT085 BKN140 BKN200 17/06 A2992 RMK PK WND 09032/0856 LTG DSNT NW CB DSNT E SLP213 WND DATA ESTMD ALSTG/SLP ESTMD COR 13=

KQSA 290855Z 09026G37KT 6000 -TSRA DU FEW000 BKN070CB BKN130 17/06 A2990 RMK PK WND 09037/0852 CB W SLP103 WND DATA ESTMD ALSTG/SLP ESTMD=

KQSA 290755Z 12025G37KT 9999 SCT032CB BKN070 BKN150 17/06 A2995 RMK PK WND 10037/0747 CB W MOV N SLP114 WND DATA ESTMD ALSTG/SLP ESTMD=

KQSA 290655Z 12015G27KT 9999 VCTS SCT036CB BKN050 BKN080 15/08 A2998 RMK CB N MOV N SLP135 WND DATA ESTMD ALSTG/SLP ESTMD=

KQSA 290630Z 12016G24KT 5000 -TSRAGS FEW030 BKN050CB 15/07 A3000 RMK CB OHD MOV N WND DATA ESTMD ALSTG/SLP ESTMD=

KQSA 290628Z 10015G20KT 9999 -SHRA SCT043 BKN050 BKN080 16/06 A3000 RMK LTG DSNT SE WND DATA ESTMD ALSTG/SLP ESTMD=

KQSA 290555Z 31007KT 9999 BKN050 15/04 A3001 RMK SLP134 WND DATA ESTMD ALSTG/SLP ESTMD 58010=

Metars (of Kabul 22nm south of Bagram):

OAKB 291350Z 18004KT 7000 BKN050 13/04 Q1016 NOSIG RMK BLU BLU

OAKB 291250Z 30007KT 9999 SCT040CB BKN060 15/01 Q1015 NOSIG RMK BLU BLU

OAKB 291150Z 10017G27KT 9999 VCTS SCT090CB BKN120 16/06 Q1013 NOSIG RMK BLU BLU

OAKB 291050Z 11020G30KT 9999 SCT090 OVC120 16/05 Q1012 NOSIG RMK BLU BLU

OAKB 290950Z 10020G30KT 9999 SCT080CB 17/06 Q1012 NOSIG RMK BLU+ BLU+

OAKB 290850Z 10025G42KT 9999 FEW060CB SCT070 17/05 Q1013 NOSIG RMK BLU+ BLU+

OAKB 290750Z 11020G30KT 9999 BKN060 17/06 Q1014 NOSIG RMK BLU BLU

OAKB 290650Z 10017KT 9999 FEW050 BKN060 16/05 Q1015 NOSIG RMK BLU BLU

Car video of the aircraft departing and coming down (Video: Sathion):

Smoke plume rising from the crash site (Photo: Albert Ramirez):

Aerodrome chart (Graphics: AIP Afghanistan):

Detail Map (Graphics: AVH/Google Earth):

Map (Graphics: AVH/Google Earth):

http://avherald.com/h?article=46183bb4
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