A320 experienced wind shear on approach, abnormal runway contact, Both nosegear tires broke away from the strut.

Here is the reason of Accident :

Cause:  Wind shear is defined as a sudden change of wind velocity and/or direction. Negative windshear (or wind shear) is when any headwind component drops sharply – or a tailwind component increases sharply. The effect on an aircraft is a sudden loss of air speed and lift, and can lead to a stall shortly.

The main effects of wind shear are:

  • Turbulence
  • Violent air movement (up- or down-draughts or swirling or rotating air patterns)
  • Sudden increase or reduction of airspeed
  • Sudden increase or decrease of groundspeed and/or drift.

Clear Air Turbulence (CAT), which may be very severe, is often associated with jet streams.

Rotor action or down-draughts in the lee of mountain waves can create difficult flying conditions and may even lead to loss of control.

What Should have done : 

“If wind shear is encountered during the approach or landing, the following recovery actions should be taken without delay:

  • Select the takeoff/go-around (TOGA) mode and set and maintain maximum go-around thrust

Incident/Accident Definition: Capital Airlines A320 (B-6952) flight experienced windshear on approach to Macau. The aircraft made an abnormal runway contact (hard landing). Both nosegear tires broke away from the strut. Pilots did a go-around and diverted to Shenzhen.

The weather at Macau at the time of the consisted of rain and wind with gusts up to 30 knots.

METAR COR VMMC 280330Z 22017KT 170V240 7000 -SHRA FEW009 FEW012CB SCT025 27/25 Q1002 TEMPO 20020G30KT 2500 TSRA=

Capital Airlines Airbus A320 (B-6952) operating flight from Beijing to Macao was substantial damaged in a hard landing at Macao Airport (VMMC). Parts of the nosegear broke away. Engine severely damaged. Diverted to Shenzhen AP. Evacuation via slides.


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