Aria Air IL62 at Mashhad on Jul 24th 2009, overran the runway
Last Update: November 11, 2017 / 18:35:20 GMT/Zulu time
Incident Facts
Date of incident
Jul 24, 2009
Classification
Accident
Aircraft Type
Ilyushin Il-62
ICAO Type Designator
IL62
the main cause of this accident is “weak Cockpit management between the crew” to use correct landing techniques same as releasing Engine trust reversers – Engine shut down in unsuitable time - ….
Contributive Factors :
Some of contributive factors for this accident occurrence are noted as:
- The copilot and the flight engineer had self activity& decision without the (PIC) coordination.
- The cockpit crew was careless and not paying proper attention toward EGPWS warning.
- Psychological adverse effect on cockpit crew because of presence of General Director of Aria airline
Violation & other deficiencies:
The accident investigation team encountered some violations and deficiencies with ICAO Standards and Iran Local Authority regulation (CAO) which are descript as:
- Poor and in-sufficient supervision controlled of operation & technical manger of Aria Airline.
- The DETA airline has not used proper procedure to receive life time extension of engine and has not passed necessary information to Iranian and Kazakhstan Authorities.
- It has not been designed a headset for flight engineer to make more coordination between the crew, by the aircraft design bureau.
- The crew was not familiar with Iranian AIP completely.
- The total on board persons was not according to written load sheet.
The CAO reported the aircraft carried 169 passengers and 17 crew. The captain (52, ATPL, 14,200 hours total, 1,500 hours on type) was pilot flying, the first officer (47, CPL, 8,294 hours total, 1,319 hours on type) was pilot monitoring. The crew was assisted by a flight engineer (52, FEL, 8,747 hours total, 1,697 hours on type).
The CAO reported that there was no indication of task sharing prior to the begin of the approach. While on approach to Mashads runway 13L ATC instructed the aircraft to reduce speed due to preceding traffic, the captain decided to fly an orbit at 7000 feet, told the crew, the navigator radioed ATC. While on final approach the aircraft flew above the glide path, the navigator, without instruction from the captain, performed the landing checklist to lower the gear, brakes, spoilers, altitude selector, no responses to the reading of the checklist were heard on the CVR. According to the FDR the engines were reduced to idle prior to the captain instructing to reduce the engines to idle about 1000 meters before the runway threshold. At that point the indicated airspeed was 325 kph (175 KIAS), about 50 kph (27 KIAS) above Vref, the rate of descent was 10m/s (1968 fpm), the GPWS issued a number of warnings. The aircraft crossed the runway threshold at 310 kph (167 KIAS) at a height of 31m (101 feet), descending through 22m (72 feet) the flight engineer moved the (separate) lever for the thrust reversers into the reverse position without instruction from the captain, the aircraft touched down 1000 meters (3270 feet) past the runway threshold. Just before touchdown the flight engineer had shifted the reverse thrust lever into forward thrust again. After nose gear touch down the first officer (not the captain!) instructed "Reverse!", neither captain, first officer or flight engineer monitoring the reverser indications, the flight engineer set throttles on engines #1 and #4 at maximum thrust, the CAO annotated: "It should be noted that as for that aircraft type, if the reverse lever is in the “Reverse” position, throttles cannot, due to their design, be set at a position over the “Nominal” mode (80…90 degrees according to thrust mode indicator)."
About 2 seconds after touchdown the inboard engines #2 and #3 were shut down by the flight engineer. Due to the forward thrust on engines #1 and #4 the aircraft did not slow down over the next 12 seconds, then the aircraft began to accelerate, the flight engineer now shut down engines #1 and #4 too. The CAO analysed: "It should be noted that crew’s actions when landing did not comply with the Crew Interaction and Procedure Instruction for the case of landing with reverse engaged, under the Operating Manual of the IL-62 type (Tab 4.1)."
The aircraft crossed the runway end at 200 kph (108 KIAS), took out some approach lights, crossed a net barrier, went across a ditch (1m deep, 2m wide) at 185 kph (100 KIAS) causing the collapse of the nose gear, the left main gear entangled turning the aircraft to the left. The aircraft continued on main gear and nose and collided with the concrete foundation of a 2.5m high brick wall, the nose section up to seat row 6 were destroyed killing the crew and occupants of the first seat rows. About 160 meters further the aircraft severed a power line and came to a stop.
11 crew and 5 passengers were killed, 2 crew and one passenger received serious, 28 passengers received minor injuries. 4 crew and 122 passengers remained without injuries.
The aircraft was damaged beyond repair.
Incident Facts
Date of incident
Jul 24, 2009
Classification
Accident
Aircraft Type
Ilyushin Il-62
ICAO Type Designator
IL62
This article is published under license from Avherald.com. © of text by Avherald.com.
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