Click IL76 near Zahedan on Jul 2nd 2008, uncontained engine failure causes adjacent engine fire
Last Update: November 19, 2017 / 17:25:27 GMT/Zulu time
Incident Facts
Date of incident
Jul 2, 2008
Classification
Report
Airline
Click Airways International
Departure
Bagram, Afghanistan
Destination
Al-Fujaireh, United Arab Emirates
Aircraft Registration
EK-76400
Aircraft Type
Ilyushin Il-76
ICAO Type Designator
IL76
Iran's CAO released their final report concluding the probable causes of the occurrence rated a serious incident was:
It is believed that the incident was caused by fatigue failure of turbine main gear due to exceed time operation of engine #3, which led to the subsequent failures in engine turbine shaft to seize and it was broken.
The CAO reported the aircraft damage:
1. Engines Nr. 3 and 4 are damaged and are to be replaced.
2. There are numerous punctures in the fuselage starboard and port side panels, in landing gear and wing fairing.
3. Inside the fuselage the cargo compartment starboard and port side reinforcing panels are damaged.
4. The left outer wing is punctured and deformed.
5. Engine 4 pylon is deformed.
6. Nacelle of engine 4 has burns and punctures. There are punctures on the aft covers of Engine 3 nacelle.
7. Pipelines in the starboard hydraulic system and control circuit cables are damaged.
8. There are numerous damages to contactors, units, connectors, ruptured wires and wire bundles, deformation of connectors, damaged insulation of electrical system wiring.
9. There is damage to oxygen supply pipes.
10. Engine 3 mode control cable is ruptured.
11. There is damage to fire detectors, fire pipelines in Engine 3 and 4 nacelles, fire pipe in APU section. The stationary fire extinguishers are discharged
The CAO detailed the engine damages:
Engine #3 has its turbine unit fully destroyed with destruction of the outer Engine cover, as well as of the pods hoods and the units of Engine stud, located near the destruction area. At the destruction area the axle of the Engine, destroyed set of the nozzle diaphragm of the 4th turbine stage, remains of the straightened blade and the blade wheel of the turbine 6th stage are visible. Fragments of the 5th turbine stage along with the blade wheel disc are absent. Both rotors are jammed and can not be rotated.
Survey of the fuel and oil filters has been carried out, as well as of the magnetic insertions of the indicators. The fuel filters are clean. No metal chips are detected on the oil system filters and on the magnetic insertions.
The Engine #4 damage was caused by the fire, which arose under the Engine cowling as a result of damage (crippling) of the fuel-oil radiator.
The CAO stated:
According to the received information by state of engine manufacturer and NPO Saturn company official report dated on 27 Feb 2009 all engines of this aircraft service life time were exceeded from desired service time that published by engine manufacturer. ... The available information shows that prolongation programs (Extensions) were issued illegally with cooperation of Operator and VARZ 400 Representative.
The CAO analysed:
In Afghanistan FIR about GADER position (43 NM to the northeast of Zahedan) at FL280, the engine #3 has failed and engine shaft near Turbine section seized and turbine blades separated from shaft and throw outward and came out from engine shell. Due to high speed rotation, the separated parts have hit the engine #4 and airframe and right wing fuel tank fuselage causing fire creation in engine #4.
After engine failure, the cabin was depressurized and the crew used oxygen drops.
The action of cabin crew was appropriate and in the given situation, was as much as they could do. They could handle this emergency situation in a good manner and succeeded to land aircraft with losing 2 engines and flight control problems.
Incident Facts
Date of incident
Jul 2, 2008
Classification
Report
Airline
Click Airways International
Departure
Bagram, Afghanistan
Destination
Al-Fujaireh, United Arab Emirates
Aircraft Registration
EK-76400
Aircraft Type
Ilyushin Il-76
ICAO Type Designator
IL76
This article is published under license from Avherald.com. © of text by Avherald.com.
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