http://avherald.com/h?article=4b511c15&opt=0
On Feb 19th 2018 local officials reported the wreckage has been located in the range of Dangazloo (Position of village: N30.8687 E51.6483) and Noqol (Position of village: N30.8672 E51.6531), located about 11nm northnortheast of Yasuj.
Subsequently on Feb 19th 2018 the CAO (Iran's Civil Aviation Authority) denied that report stating the exact location of the wreckage has still not been determined, the last radar contact was 14nm from Yasuj. Helicopters have been dispatched again following weather improvement.
On Feb 20th 2018 Iran's Revolutionary Guards reported helicopters and unmanned aerial vehicles have sighted the wreckage 30 meters below the peak of the mountains south of Noqol (Editorial note: airway W144 leading to Yasuj passes over Nogol and Yasuj NDB,
according to Google Earth the highest peak below W144 in that area rises up to about 4040 meters/13250 feet at position N30.7946 E51.6355, another peak rising up to 3900 meters/12800 feet is at position N30.8034 E51.6184, both about 7nm northeast of the aerodrome. The instrument approach chart (see below) lists the higher eastern peak at 13,984 feet/4263 meters and the other western peak at 13,819 feet/4213 meters).
Detail Map (Graphics: AVH/Google Earth):
Official report :
The aircraft levelled off at 15,000 feet on autopilot, the crew set the QNH to 1021 and maintained 15000 feet for about one minute. Then the engines were reduced to idle, the speed reduced to 200 KIAS with the angle of attack increasing, the engines get slightly accelerated. The speed continued to decrease and reached 129 KIAS (minimum maneouvering speed 132 KIAS), the pitch reaches 15 degrees nose up, the engines accelerate to 67% torque. The altitude target is set to 14,000 feet and the aircraft begins to descend at about 600fpm. The speed further reduces to 117 KIAS, a stall warning activates, the crew disengages the autopilot, the aircraft rolls 20 degrees to the left, the pitch reduces to about 9 degrees nose down.
Descending through 14200 feet at 137 KIAS the autopilot gets re-engaged, the aircraft rolls right by 12 degrees, the pitch increases to 5 degrees nose down. A GPWS warning "TERRAIN AHEAD! PULL UP!" activates, the autopilot is disengaged, the GPWS warning continues for 12 seconds until impact.
From official report :
they found airplane at 13200 feet ( 30-100 meter/ 100-320 feet below the crash point!!! depends on source )
14200-13520=680 feet or 207 metre
airplane was at least 200m higher than mountain at the moment of collision ....
according to all these findings I must say the airplane is working fine somewhere and all flight crew and passengers are still alive !
it seems "plane problem" is the case .
