Date & Time: Sep 12, 2012 at 1220 LT
Type of aircraft:
PZL-Mielec AN-28
Operator:
Registration:
RA-28715
Survivors:
Yes
Schedule:
Petropavlovsk-Kamchatsky - Palana
MSN:
1AJ006-25
YOM:
1989
Flight number:
PTK251
Country:
Russia
Region:
Asia
Crew on board:
2
Crew fatalities:
2
Pax on board:
12
Pax fatalities:
8
Other fatalities:
0
Total fatalities:
10
Captain / Total flying hours:
8955
Captain / Total hours on type:
7732
Copilot / Total flying hours:
6543
Copilot / Total hours on type:
6347
Aircraft flight hours:
11947
Aircraft flight cycles:
8891
Circumstances:
Following an uneventful flight from Petropavlovsk-Kamchatsky, crew started the descent to runway 11 at Palana Airport from the south. Aircraft hit tree tops and crashed in a wooded area on the Mt Pyatibratka, at a height of 216 meters, some 10 km south of the airport. Both pilots and 8 passengers were killed and the aircraft was totally destroyed by impact forces.
Probable cause:
Non-compliance of the crew with the published approach procedure, descending below minimum height prematurely while flying in mountainous terrain in weather conditions that prevented consistent visual contact with the ground. This led to a controlled flight into the slopes of a mountain, the destruction of the aircraft and fatalities among the crew and passengers.
Alcohol was found in the blood of both flight crew.
Contributing factors were:
- low level of discipline of staff and inadequate supervision of pre-flight preparation and implementation of approaches by the airline
- lack of alertness by the crew when the radio altimeter reached a dangerous height
- the presence of a GPWS could possibly have averted the accident.
Following deficiencies were identified leading to the crash:
- the blood of both flight crew contained alcohol in violation of Russian regulations
- during preflight checks both flight crew were permitted to conduct the flight despite their intoxication in violation of Russian regulations
- in violation of Airline regulations the captain did not ensure a preflight examination was conducted
- according to tape recordings the decision to depart was made by the first officer of another crew, which is in violation of Russian and Airline regulations
- No ground proximity warning system (GPWS) was installed on the aircraft
- the flight crew did not track along the planned trajectory and entered the approach procedure not at the published entry point
- the flight crew provided air traffic control with wrong position reports
- nearing the aerodrome of Palana the crew performed a premature descent and flew an arbitrary trajectory in violation of the approach procedure
- near the aerodrome of Palana the flight crew again provided a false position report to ATC
- ATC cleared the aircraft to intercept the turn to final at an altitude, which violated the instrument approach procedure
- The "uncertainty phase" was not declared by the aerodrome preventing taking measurements of weather data
- the operations manuals at Palana aerodrome do not provide limiting values in altitude and bearings to air traffic controllers vectoring aircraft in the terminal area.

Source: AvHerald
Final Report: