Flgiht History and Incident Scenario

2718 Words6 Pages

Introduction

Flight History and Incident Scenario…

On the 9th of Sept 2007 the Scandinavian Airlines Bombardier Dash 8-Q400, aircraft (LN-RDK), flight 1209, had a domestic flight from Copenhagen Airport (EKCH) to Aalborg Airport (EKYT). Up to approaching phase, it was a normal flight with no mentioned incidents, however during the approach to EKYT airport, and when the flight crew selected the landing gear down, the nose landing gear and the left main landing gear (MLG) indicated down and locked while the right MLG indicated “Transit” (not down and locked i.e. Unsafe condition to land). So the flight crew decided to perform a “go-around” to verify this abnormal condition. During the go-around, the flight crew revise the Quick Reference Handbook (QRH) for a checklist concerning an unsafe landing gear, but they did not find any checklist with that header, and the only suitable checklist -as they thought- was “ALTERNATE LANDING GEAR EXTINTION”, and it was about performing an alternate landing gear extension… So they did, but nothing changed. The flight crew subsequently tried to make a normal gear up, the nose and left MLG were retracted normally, while the right MLG indication remained in “Transit”. A second attempt to use the alternate landing gear extension was performed, but without any changes to the right MLG indication. After this point the flight crew declared the need for an emergency landing, so they inform the airport about the situation and then the aircraft entered in a holding pattern in order to reduce the amount of fuel, and to acquaint the passengers about the emergency situation. Before landing, the cabin crew decided to evacuate the seats at rows 6, 7, and 8 (the seats in parallel with the right engine propellers area). [Hcl.dk, 2007]

During the landing, the left MLG touched down the runway first, followed by the right MLG, and approximately two seconds after touchdown the right MLG collapsed, the propeller blades of the -running- right engine struck the ground, then a blade splintered from the engine and wedged in the fuselage, the aircraft then veered to the right and came to rest away from the runway. Fortunately the passengers and the crew were evacuated safely with a total of seven minor injuries amongst the four crew and 69 passengers on board. The figure 1 shows the aircraft after the incident.

More about Flgiht History and Incident Scenario

Open Document