SI FLY flight KSV3275 , an ATR 42-300 registered F-OHFV crashed on 12 November 1999 at 8 h 11and was operated by the Italian airline Si Fly and chartered by the World Food Program, took off from Rome to undertake Flight KSV 3275 to Pristina with three crew members and 21 passengers on board.
At 9 h 57 min 34 s, the flight was transferred by Skopje control to the Pristina military air traffic control organisation. The latter identified it on radar and the crew replied “Flight condition is now VFR” to a request from the controller.
At 9 h 58 min 32 s, the approach controller proposed ILS interception headings to the crew. The crew accepted the controller’s proposal, the latter specifying that the radar information service was limited because of poor radar performance. He then requested that the crew turn left towards heading 350 and indicated a QNH of 1028.
At 9 h 59 min 08 s, the controller requested that KSV 3275 descend initially to 5200 feet. Four minutes later, he asked them to turn on heading 340 and to descend to 4 600 feet.
At 10 h 10 min 50 s, the crew was advised that they were number two behind a faster plane 5 NM in front and the controller asked them to continue on the same heading.
a pilot’s level of fatigue particularly depends on the number of duty periods which begin early in the morning.
At 10 h 13 min 18 s, the crew called the controller and told him “I want2 to land”. The controller then requested that they turn left on heading 270 and, a few seconds later, that they indicate their estimated position relative to the PRI beacon. The crew said that they were at 15 NM, then the controller gave them heading 180 to the left.
At 10 h 14 min 33 s, the CRC alarm was heard, the crew noted 240 feet on the radio altimeter. Two seconds later the aircraft struck high ground.
At 20 h 41, the wreckage was spotted by an army helicopter 25 NM north of the aerodrome, at an altitude of 1 350 metres, at reference 042°58’ N-021°03’ E. It had struck a mountain approximately fifteen metres from the summit.
The collision of Flight KSV 3275 with high ground was due :
- to teamwork which lacked procedural discipline and vigilance during manoeuvres in a mountainous region with poor visibility.
- to the aircraft being kept on its track and then forgotten by a military controller unused to the mountainous environment of the aerodrome and to preventing the risk of collisions with high ground, within the framework of the radar service he was providing.
- to the operator’s critical situation as a new company highly dependant on the lease contract, favouring a failure to respect procedures.
- to the opening of the aerodrome to civil traffic without an advance evaluation of the operating conditions or of the conditions for distribution of aeronautical information.
The following factors contributed to the accident :
- crew fatigue, favouring a lowering of vigilance.
- undertaking the flight with an unserviceable or disconnected GPWS.