Yakutsk-Intl (Platon Oyunsky)

Flight Type:

Survivors:

Site:

Schedule:

Ulan-Ude - Yakutsk

MSN:

95019

YOM:

2012

Flight number:

SYL414

Location:

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

Pax fatalities:

Other fatalities:

Total fatalities:

Captain / Total flying hours:

13125

Captain / Total hours on type:

1080.00

Copilot / Total flying hours:

3200

Copilot / Total hours on type:

1300

Aircraft flight hours:

8115

Aircraft flight cycles:

3320

Circumstances:

Following an uneventful flight from Ulan-Ude, the crew initiated the approach to Yakutsk-Platon Oyunsky Intl Airport Runway 23L. Due to work in progress, the runway 05R threshold was displaced by 1,150 metres, reducing the landing distance to 2,248 metres for the runway 23L on which the touchdown zone lighting system was unserviceable. On approach, the crew was informed by ATC that the friction coefficient was 0,45. The crew completed the landing on runway 23L with a slight tailwind component of 4 knots and started the braking procedure. Unable to stop within the remaining distance, the aircraft overran, entered the construction area and collided with the junction of a concrete section under reconstruction, causing both main landing gear to collapse (the left main gear was torn off). The aircraft slid for another 250 metres before coming to rest. All 92 occupants evacuated safely and the aircraft was damaged beyond repair.

Probable cause:

The cause of the aviation accident with the RRJ 95B RA-89011 aircraft when landing at night with one deactivated thrust reverser was the transfer to the crew of incorrect information about the value of the friction coefficient, which led to the landing on an icy runway, the average normative friction coefficient which was less than 0.3, which did not allow landing in accordance with current regulations. This led to a significant increase in landing distance, rolling the aircraft out of the runway and collision with the junction of the reconstructed section of the runway with a height of about 0.4 m, which led to the destruction of the main landing gear supports and damage to the engines with fuel leakage without causing a fire.
The contributing factors were the following:
- Absence of a connecting ramp (which was not envisaged by the reconstruction project) between the current and the part of the runway being reconstructed;
- inefficiency of the SMS of Yakutsk Airport JSC in terms of identification and control of risks associated with the possibility of ice formation at the runway, and insufficient control over the implementation of the SMS by aviation authorities;
- erroneous determination of the Xc value at the last measurement;
- inefficiency of ice removal procedure during runway cleaning due to lack of chemical reagents for ice removal and/or thermal machines at the airfield;
- lack of information from the RRJ-95LR-100 RA 89038 aircraft crew about actual rolling out of the runway, which was an aviation incident and was subject to investigation;
- failure by airport and ATC officials to take appropriate action after receiving the RRJ-95LR-100 RA-89038 low friction report from the aircraft crew.

Final Report:

Crash of an Antonov AN-26B-100 in Deputatsky

Date & Time: Nov 21, 2012 at 1431 LT

Type of aircraft:

Antonov AN-26

Operator:

Registration:

RA-26061

Flight Phase:

Flight Type:

Survivors:

Site:

Schedule:

Yakutsk - Deputatsky

MSN:

111 08

YOM:

1981

Flight number:

PI227

Location:

Deputatsky

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

Pax fatalities:

Other fatalities:

Total fatalities:

Captain / Total flying hours:

8845

Captain / Total hours on type:

1150.00

Copilot / Total flying hours:

2566

Copilot / Total hours on type:

245

Aircraft flight hours:

22698

Aircraft flight cycles:

11257

Circumstances:

Following an uneventful flight from Yakutsk-Magan Airport, crew started the descent to runway 10. On touch down on a snow covered runway, aircraft landed slightly to the left of the centerline. After a course of 350 meters, left main gear hit a snow berm of 20-50 cm high. Aircraft continued to the left, veered off runway and came to rest in snow covered field with its right main gear and right wing severely damaged. All 29 occupants were evacuated safely while the aircraft was damaged beyond repair.

Probable cause:

The non-fatal accident with An-26B RA-26061 aircraft was caused by its RWY overrun that resulted in aircraft structure damage. The accident was possible due to combination of the following factors:
- Pilot's error resulted in approach procedure correction up to the moment of landing resulted in offset approach towards unpaved RWY axis and considerably to the left from its axis;
- Non-compliance of unpaved RWY of "Deputatsky" Airport" condition with Civil aerodrome operation manual requirements RF-94, in part of interface between cleaned and uncleaned surface of unpaved RWY with slope no more than 1:10;
- Nose-left moment during main landing gear movement along interface from recent snow up to 30-50 cm as a result of both left landing gear wheels dipping into snow.

Final Report:

Crash of an Antonov AN-26B in Ust-Kuyga

Date & Time: Dec 27, 2002

Type of aircraft:

Antonov AN-26

Operator:

Dauriya

Registration:

RA-26053

Flight Phase:

Flight Type:

Cargo

Survivors:

Site:

Schedule:

Yakutsk - Ust-Kuyga

MSN:

109 09

YOM:

1981

Location:

Ust-Kuyga

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

Pax fatalities:

Other fatalities:

Total fatalities:

Aircraft flight hours:

17609

Aircraft flight cycles:

9649

Circumstances:

Following an uneventful cargo flight from Yakutsk, the crew started the approach to Ust-Kuyga on a polar night with an OAT of -51° C. On final approach, at a distance of 1,150 metres from the runway threshold, the aircraft deviated to the right by 150 metres. The captain was instructed by ATC to initiate a go-around but he decided to continue the approach. Unstable, the aircraft's speed dropped to 210 km/h and on the last segment, it lost height, causing the right main gear to struck the runway surface. On impact, the right main gear was torn off, followed shortly later by the nose gear. Out of control, the aircraft slid for few dozen metres before coming to rest. All six occupants escaped uninjured and the aircraft was damaged beyond repair.

Probable cause:

The following findings were identified:
- Wrong approach configuration on part of the crew,
- The aircraft was unstable on approach,
- The approach' speed of 210 km/h was insufficient (20 km/h below the prescribed speed),
- On the last segment, the aircraft rolled to the right following improper actions from the crew,
- The crew failed to initiate a go-around and ignored ATC instructions,
- The configuration adopted by the crew resulted in the aircraft making a deliberate descent to the right of the approach pattern.

Crash of an Antonov AN-24RV in Yakutsk

Date & Time: Jul 13, 2002 at 1418 LT

Type of aircraft:

Antonov AN-24

Operator:

Registration:

RA-46670

Flight Phase:

Flight Type:

Training

Survivors:

Site:

Schedule:

Yakutsk - Yakutsk

MSN:

47309601

YOM:

1974

Location:

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

Pax fatalities:

Other fatalities:

Total fatalities:

Circumstances:

The Antonov departed Yakutsk on a crew training flight. Two approach and landings were carried out using flap settings of 38 and 15 degrees. During the third approach the captain called for lowering of the landing gear. The flight engineer moved the landing gear handle from neutral into the "retract" position. He did not check for three greens so failed to notice his mistake. Then the captain requested the flaps to be selected at 10 degrees. The Antonov turned to finals, but the crew did not carry out the final approach checks and continued after having obtained landing clearance. Fourteen seconds before touchdown an air traffic controller informed the crew that they should go around because the landing gear was not down. The captain did not hear this because at that moment height and speed were called out by the flight engineer. Five seconds later the controller repeated his warning. One of the crew members heard the call and noticed three reds on the instrument panel. He informed that captain about this, but it was already too late. The captain added takeoff power, but within three seconds the tail struck the runway. The airplane skidded about 1000 metres before coming to rest.

Probable cause:

The accident was caused by the combination of the following factors:
- The erroneous actions of the flight engineer when trying to lower the landing gear,
- Failure of the flight crew to conduct the necessary (final approach) checks,
- The failure by the crew to check and respond to landing gear warning indications,
- The execution of a flight with an incomplete composition of crew, causing additional workload on the flight engineer during the approach (height and speed call outs),
- Late commands to go around by the air traffic controller,
- On the Yak-40 the landing gear handle moves to the opposite direction for retraction and lowering compared to the Antonov 24 (the flight mechanic had more, and recent, flight experience on the Yakovlev 40 jet),
- The large workload and fatigue of the crew during the recent six days before the incident.

Crash of an Antonov AN-70 in Omsk

Date & Time: Jan 27, 2001

Type of aircraft:

Antonov AN-70

Operator:

Registration:

UR-NTK

Flight Phase:

Takeoff (climb)

Flight Type:

Test

Survivors:

Site:

Schedule:

Omsk - Yakutsk

MSN:

77 01 02

YOM:

1997

Location:

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

Pax fatalities:

Other fatalities:

Total fatalities:

Circumstances:

The aircraft departed Omsk Airport on a test flight to Yakutsk, carrying 22 passengers and a crew of 11 in order to perform a test flight in low-temperature flight conditions, as part of the Ukrainian manufacturer's certification program. During initial climb, at a height of 20 metres, the engine n°3 lost power. The crew increased power on all three other engines and continued to climb. Less than 25 seconds laters, at a height of about 60 metres, the engine n°1 failed. The captain attempted an emergency landing in a snow covered terrain located 660 metres past the runway end. The aircraft belly landed and came to rest with severe damages to the fuselage (almost broke in two at wings level) and engines. All 33 occupants were rescued, among them four were injured, two seriously.

Probable cause:

The loss of power on engine n°3 was the result of the rupture of a hydraulic line located near the rotor. This failure caused a reduction of the blades' rotation on both propellers (counter-rotating system), creating severe vibrations. The crew increased power on all three remaining engines when a technical malfunction occurred on an electric sensor coupled to the turbine of the engine n°1, causing the automatic control unit to fail and the engine n°1 to stop.

Crash of an Ilyushin II-62M in Yakutsk

Date & Time: Jul 1, 1990 at 0019 LT

Type of aircraft:

Ilyushin II-62

Operator:

Registration:

CCCP-86456

Flight Phase:

Flight Type:

Survivors:

Site:

Schedule:

Moscow - Yakutsk

MSN:

2623717

YOM:

1976

Location:

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

Pax fatalities:

Other fatalities:

Total fatalities:

Circumstances:

The four engine aircraft departed Moscow-Domodedovo Airport at 1237LT with 99 passengers and 10 crew members on board. Following an uneventful flight of 5 hours and 42 minutes, the crew started the approach to Yakutsk-Intl Airport by night. After touchdown on runway 23 (3,300 meters long), the flight engineer mistakenly selected reverse thrust on engine n°2 and 3 only, letting both engines n°1 and 4 running at takeoff power. Both pilots took few seconds to identify the problem and the aircraft's speed was about 265-270 km/h and there were 655 meters of remaining runway. The captain attempted an emergency braking procedure when all tyres burst and the aircraft overran runway at a speed of 200 km/h, lost its undercarriage and came to rest 397 meters further, broken in three. All 109 occupants were evacuated, among them six were injured, two seriously. The aircraft was written off.

Probable cause:

The accident was the consequence of an error on part of the flight engineer who mistakenly selected reverse thrust on engine n°2 and 3 only, letting both engines n°1 and 4 running at takeoff power.
The following contributing factors were reported:
- The spoilers could not deploy because reverse thrust was not activated on all four engines,
- The crew was disorganized during the landing phase,
- Poor crew coordination,
- The mistake committed by the flight engineer was identified too late by the rest of the flying crew, ¨
- Heavy verbal charge during the landing phase,
- Insufficient professional skills of the flight engineer.

Crash of an Ilyushin II-18V in Yakutsk

Date & Time: Sep 10, 1969 at 1525 LT

Type of aircraft:

Ilyushin II-18

Operator:

Registration:

CCCP-75791

Flight Phase:

Flight Type:

Survivors:

Site:

Schedule:

Krasnoyarsk – Yakutsk

MSN:

181 0040 05

YOM:

1961

Flight number:

SU093

Location:

Country:

Region: