Flugunfall 22 MAR 2011 einer Airbus A300F4-622R N173UP - Albuquerque International Airport, NM (ABQ)
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Status:Accident investigation report completed and information captured
Datum:Dienstag 22 Mrz 2011
Flugzeugtyp:Silhouette image of generic A306 model; specific model in this crash may look slightly different
Airbus A300F4-622R
Fluggesellschaft:United Parcel Service - UPS
Kennzeichen: N173UP
Werknummer: 868
Baujahr: 2006-02-28 (5 years )
Triebwerk: 2 Pratt & Whitney PW4158
Besatzung:Todesopfer: 0 / Insassen: 2
Fluggäste:Todesopfer: 0 / Insassen: 0
Gesamt:Todesopfer: 0 / Insassen: 2
Sachschaden: schwer beschädigt
Konsequenzen: Repaired
Unfallort:Albuquerque International Airport, NM (ABQ) (   USA)
Flugphase: Landung (LDG)
Flug von:El Paso International Airport, TX (ELP/KELP), USA
Flug nach:Albuquerque International Airport, NM (ABQ/KABQ), USA
An Airbus A-300-600F airplane, N173UP, registered to United Parcel Service, and operated as flight 797, a domestic cargo flight from El Paso, Texas, struck its tail during a go-around following an attempted landing in Albuquerque, New Mexico.
The captain was the pilot flying and the takeoff, climb and cruise portion of the flight was uneventful. Prior to landing, the captain conducted the approach briefing, indicating that they would conduct a visual approach to runway 26, the gusty winds required a wind additive to the approach speed and would go-around if the approach was not stabilized.
On final approach, the local controller cleared the flight to land and reported the winds were 310 degrees at 16 knots. The flight crew stated that at 1000 feet AGL the landing checklist was complete, the airplane was fully configured for landing and the approach speed was set to 132 knots (Vref + 5).
Recorder data indicated that during the final approach, the autothrottle was disconnected about 800 feet above the ground and the airspeed decreased to as low as 129 knots but did not go below Vref (127 knots). The first officer (FO) stated that he called out the low airspeed and adjusted the target airspeed from 132 to 134 knots. The captain increased power during the approach but the airspeed remained slightly below Vapp until landing. Pitch attitude on final approach was stable at about 5 to 6 degrees nose up. The pitch attitude at touchdown was about 7 degrees and the airplane touched down first on the right main landing gear (MLG) and then on the left MLG. The flight crew stated that they felt that the airplane bounced and both called for a go around simultaneously. About one second after the initial touchdown, the ground spoilers began to deploy, followed by an increase in pitch in the next two seconds from 4.2 degrees to 12.7 degrees. Thrust levers advanced to near maximum thrust about one second after the left MLG touched down and as the ground spoilers were in transit. Pitch attitude continued to increase to more than 14 degrees while the airplane was still on the ground. Neither flight crewmember was aware of a tail strike until the captain discovered damage to the airplane during the post flight inspection.
The tail strike resulted in aft fuselage skin cracks and numerous sheared rivets, internal structural damage to the frames, a cracked support bracket, buckled floor beam, buckled main cargo deck floor panels, and buckled stringers.

Probable Cause:

PROBABLE CAUSE: "The captain's failure to control the airplane pitch-up induced by ground spoiler deployment during the go-around."

Accident investigation:

Investigating agency: NTSB
Status: Investigation completed
Duration: 5 years and 11 months
Accident number: DCA11FA035
Download report: Summary report


photo of Airbus-A300F4-622R-N173UP
FDR parameters

This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from El Paso International Airport, TX to Albuquerque International Airport, NM as the crow flies is 358 km (224 miles).

This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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