Incident Overview

Date: Friday 24 March 2000
Aircraft Type: Antonov An-12BK
Owner/operator: Sky Cabs, lsf Antey
Registration Number: RA-11302
Location: 2,2 km NNW of Colombo-Bandaranaike International Airport (CMB) – ÿ Sri Lanka
Phase of Flight: Approach
Status: Destroyed, written off
Casualties: Fatalities: 6 / Occupants: 8
Component Affected: UnknownUnknown
Investigating Agency: DCA Sri LankaDCA Sri Lanka
Category: Accident
On July 16, 2023, a fatal aviation incident occurred when Sky Cabs flight SCB 701, a flight from Colombo-Bandaranaike International Airport (CMB) to Bangkok-Don Muang International Airport (BKK), experienced a catastrophic crash. The flight crew, led by the Captain, initiated a return flight from Bangkok after a 4-hour and 20-minute ground time. Upon arrival in Bangkok, the crew received weather reports prior to departure, and the aircraft was refueled, adding 6681 kg of fuel. The flight SCB 702 departed Bangkok, and the scheduled flight time for Bangkok-Colombo was five hours and twenty minutes. The flight crew radioed a warning to Colombo Director at 16:16 regarding a significant weather event ? a valid signal for up to 1415 UTC, Colombo FIR CBs, Thunderstorms, including Colombo and Ratmalana airfields. The controller subsequently radioed, ‘There is a valid signal up to 1415 UTC, Colombo FIR CBs, Thunderstorms were found having tops up to FL360 over Sri Lanka including Colombo and Ratmalana airfields, and contact Colombo Director on 132.4 Mhz.’ At 16:40, the controller radioed, ‘There is a valid signal up to 1415 UTC, Colombo FIR CBs, Thunderstorms were found having tops up to FL360 over Sri Lanka including Colombo and Ratmalana airfields, and contact Colombo Director on 132.4 Mhz.’ The crew reported an unsuccessful ILS approach to runway 04. Following this, the aircraft’s engines stopped, and the propellers feathered, resulting in a controlled glide. The aircraft crashed on coconut trees, causing significant damage. The left wing separated first, followed by the right wing, leading to complete engine failure. Four engines were lost, and the aircraft entered a controlled glide. The incident involved multiple fires where the main wing tank and APU were extinguished on its own. The aircraft’s cause was identified as fuel starvation, compounded by violations of Air Navigation Regulations, crew failure to declare an emergency, adverse weather conditions, lack of effective communication with the flight crew, and inadequate oversight by the Department of Civil Aviation, Sri Lanka. The incident stemmed from a combination of factors including violation of Air Navigation Regulations, insufficient crew communication, adverse weather conditions, and a lack of established air traffic control procedures, ultimately leading to a preventable accident.On July 16, 2023, a fatal aviation incident occurred when Sky Cabs flight SCB 701, a flight from Colombo-Bandaranaike International Airport (CMB) to Bangkok-Don Muang International Airport (BKK), experienced a catastrophic crash. The flight crew, led by the Captain, initiated a return flight from Bangkok after a 4-hour and 20-minute ground time. Upon arrival in Bangkok, the crew received weather reports prior to departure, and the aircraft was refueled, adding 6681 kg of fuel. The flight SCB 702 departed Bangkok, and the scheduled flight time for Bangkok-Colombo was five hours and twenty minutes. The flight crew radioed a warning to Colombo Director at 16:16 regarding a significant weather event ? a valid signal for up to 1415 UTC, Colombo FIR CBs, Thunderstorms, including Colombo and Ratmalana airfields. The controller subsequently radioed, ‘There is a valid signal up to 1415 UTC, Colombo FIR CBs, Thunderstorms were found having tops up to FL360 over Sri Lanka including Colombo and Ratmalana airfields, and contact Colombo Director on 132.4 Mhz.’ At 16:40, the controller radioed, ‘There is a valid signal up to 1415 UTC, Colombo FIR CBs, Thunderstorms were found having tops up to FL360 over Sri Lanka including Colombo and Ratmalana airfields, and contact Colombo Director on 132.4 Mhz.’ The crew reported an unsuccessful ILS approach to runway 04. Following this, the aircraft’s engines stopped, and the propellers feathered, resulting in a controlled glide. The aircraft crashed on coconut trees, causing significant damage. The left wing separated first, followed by the right wing, leading to complete engine failure. Four engines were lost, and the aircraft entered a controlled glide. The incident involved multiple fires where the main wing tank and APU were extinguished on its own. The aircraft’s cause was identified as fuel starvation, compounded by violations of Air Navigation Regulations, crew failure to declare an emergency, adverse weather conditions, lack of effective communication with the flight crew, and inadequate oversight by the Department of Civil Aviation, Sri Lanka. The incident stemmed from a combination of factors including violation of Air Navigation Regulations, insufficient crew communication, adverse weather conditions, and a lack of established air traffic control procedures, ultimately leading to a preventable accident.

Description

Sky Cabs flight SCB 701 originated in Colombo-Bandaranaike International Airport (CMB), Sri Lanka at 01:40 hours. It landed in Bangkok-Don Muang International Airport (BKK), Thailand after an uneventful flight. The same flight crew made the return flight back to Colombo after 4 hours and 20 minutes ground time in Bangkok. The crew had received the weather report prior to departure. The aircraft was refueled adding 6681 kg of fuel to the remaining 8300 kg bringing the total fuel onboard to 14981 kg. Flight SCB 702 departed Bangkok. The scheduled flight time for Bangkok – Colombo was five hours and twenty minutes with a scheduled time of arrival of 17:00 hours. SCB 702 made the first radio contact with Sri Lanka air traffic control at 16:16. The area controller passed SCB702 the latest weather report effective for Colombo. At 16:40 the controller radioed: “There is a sigmet valid up to 1415 UTC, Colombo FIR CBs, Thunderstorms were found having tops up to FL360 over Sri Lanka including Colombo and Ratmalana airfields and now contact Colombo Director on 132.4 Mhz.” When the crew contacted the approach radar controller (Director) they were asked to report the radial and DME from Colombo, (i.e. from “DVOR/DME KAT”). SCB 702 reported as saying “074 radial and 55 DME ready for descent”. Later, flight SCB 702 made two unsuccessful ILS approaches to runway 04. While on a radar heading to get established on the ILS to runway 22 for a third attempt to land, all four engines stopped. The propellers were feathered and the aircraft entered a controlled glide. It cut through several coconut trees before crashing on the houses. The left wing had separated first. The right wing then separated as well. Both wings lost all engines in the process. There had been two isolated minor fires where the main wing tank and the Auxiliary Power Unit (APU) were found. Both the fires had not spread to other areas and had extinguished on its own. CAUSE OF THE ACCIDENT: The aircraft accident occurred due to fuel starvation. Contributory factors to the accident are as follows. i) Violation of Air Navigation Regulations on fuel planning; ii) Failure of the flight crew to declare an emergency; iii) Being unable to land due to adverse weather situation; iv) Lack of communicability of the flight crew in English language; v) Non-availability of established air traffic control procedures to assist an aircraft in distress; vi) Failure of Skycabs (Pvt.) Ltd. to comply with the Air Navigation Regulations and the Conditions set-forth in Schedules issued with the Airline Licence; and vii) Absence of an effective Safety Oversight Programme implemented by the Department of Civil Aviation, Sri Lanka.

Source of Information

https://www.airhistory.net/info/soviet.phphttps://www.airhistory.net/info/soviet.php

Primary Cause

UnknownUnknown

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