Originally Posted by
VNAV PATH
Read page 4 of th preliminary report:
According to the information provided by the flight recorders Cockpit Voice Recorder (CVR) and Flight Data Recorder (FDR), It was evidenced that the aircraft Backtracked towards runway 25 Threshold And simultaneously the crew performed the respective before takeoff checklists; as well as the self-announcement calls (blind) to the aircraft on the area, having in mind that the airport at the time was Uncontrolled.
Once the backtrack was completed , it was evidenced that the aircraft performed a 180 degree turn resulting in a heading different from runway heading, which was later corrected during the takeoff run.
Based on CVR and FDR, was identified that HK-4544 was set for a takeoff configuration of 30 degrees of flaps and 6 ½ (according to modification (STC)- ST00507SE “Flap and aileron droop modification- Quiet wing Corporation) units of stabilizer trim (up), also was found that the crew was unaware of the wind direction and intensity information. The closest takeoff time METAR was: 2200Z 01008KT 9999 FEW020 SCT200 32/31 A//// (This info was available on the IDEAM (Colombia’s meteorological department) office at the airport ).