Incident Overview

Date: Wednesday 4 February 2004
Aircraft Type: Ilyushin Il-18D
Owner/operator: ExpoAir, lsf Phoenix Aviation
Registration Number: EX-005
Location: Colombo-Bandaranaike International Airport (CMB/VCBI) – ÿ Sri Lanka
Phase of Flight: Landing
Status: Substantial, written off
Casualties: Fatalities: 0 / Occupants: 7
Component Affected: AltimeterAltimeter
Category: Accident
On May 2004, an Ilyushin cargo plane chartered by ExpoAir operated from Dubai to Colombo. The aircraft approached Colombo using GPS and DME, and the navigator programmed an incorrect altimeter reading of 765 mm Hg. The copilot programmed 765 mm Hg, leading to a descent to 60 meters altitude. The aircraft then descended slowly until it contacted the sea at 10.7 km from the runway, and climb power was applied. The navigator reported a ‘PHG 3-0-0-2 go around’ instruction, but the captain decided to continue the approach. The aircraft skidded and landed 2230 meters further on the runway, resulting in a significant impact. The plane was parked in a corner of the airport.On May 2004, an Ilyushin cargo plane chartered by ExpoAir operated from Dubai to Colombo. The aircraft approached Colombo using GPS and DME, and the navigator programmed an incorrect altimeter reading of 765 mm Hg. The copilot programmed 765 mm Hg, leading to a descent to 60 meters altitude. The aircraft then descended slowly until it contacted the sea at 10.7 km from the runway, and climb power was applied. The navigator reported a ‘PHG 3-0-0-2 go around’ instruction, but the captain decided to continue the approach. The aircraft skidded and landed 2230 meters further on the runway, resulting in a significant impact. The plane was parked in a corner of the airport.

Description

The Ilyushin cargo plane operated on a flight from Dubai to Colombo. The airplane was operated by Phoenix Aviation and chartered by ExpoAir. Using GPS and DME the airplane approached Colombo. The approach controller cleared flight 3002 to descend to FL150. After reaching that altitude the navigator passed on the QNH and QFE values for Colombo: 1009 mb and 756 mm Hg. The altimeters were updated with this information. However, the copilot erroneously programmed 765 mm Hg into the altimeter. After turning left onto finals the aircraft, 14 km from the runway, descended to an altitude above sea level of 60 meters. The airplane descended slowly until the landing gear contacted the surface of the sea at a distance of 10,7 km short of runway 04. Climb power was applied and the navigator reported that they were going around: “PHG 3-0-0-2 go around, again I call you established localizer”. At a height of 60-90 meters however, the captain decided to continue the approach. Assuming the undercarriage had been substantially damaged, he decided to carry out a belly landing on the side of the runway. Touchdown was accomplished 50 meters to the right of the runway and 450 meters passed the threshold. The aircraft skidded and came to rest 2230 meters further on. The Ilyushin was away and parked in a corner of the airport, where it was still noted in May 2004.

Primary Cause

Incorrect altimeter reading and subsequent descent.Incorrect altimeter reading and subsequent descent.

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