Russian investigators are considering a full-scale experiment to identify the cause of the Yakovlev Yak-42 crash at Yaroslavl, having failed to find an obvious explanation for the accident.
The trijet failed to climb out of Yaroslavl during departure for Minsk on 7 September.
But its take-off weight was below the maximum permissible, said the Russian Interstate Aviation Committee (MAK), eliminating the possibility that the Yak-42 was overweight.
Preliminary information from the flight recorders show that the aircraft was carrying 14t of fuel, of which 8t had been uplifted at Yaroslavl airport.
"Fuel analysis is being carried out," said MAK.
Prior to take-off the crew conducted a check of all flight controls on the 18-year old Yak-42, including that of the elevator. The voices of the crew are being identified on the cockpit-voice recorder, said MAK.
The weather conditions at the airport, including crosswind components, did not preclude the departure. Investigators have already stated that the stabiliser and flaps were set to the take-off configuration, and that the aircraft's engines were functioning until impact.
"The commission has not ruled out a full-sized experiment with an [analogous] aircraft," said MAK.
It said that field work at the scene of the fatal crash, including the retrieval of wreckage from the Yak Service aircraft, was nearly complete.
This Is the Yak-42 that Crashed...
The US Federal Aviation Administration proposes to fine Everett, Washington-based Aviation Technical Services (ATS) $1.1 million for making improper repairs on 44 Southwest Airlines Boeing 737-300s.
ATS allegedly failed to accomplish work required under an airworthiness directive that mandated five repetitive inspections and a one-time inspection to find and repair fatigue cracks in the fuselage skin of the aircraft, said FAA. Those inspections were also required under the Southwest continuous airworthiness maintenance programme.
FAA also stated after the inspections ATS failed to install fasteners in all the rivet holes within the time specified for the task. The aircraft involved returned to service between 1 December 2006 and 18 September 2009.
The agency emphasised the Southwest 737-300 that suffered a fuselage crown failure in April of this year was not one of the 44 aircraft subject to the civil penalty.
FAA's latest proposed fine against ATS follows a previous penalty levied against the maintenance services provider in November 2010. At that time the agency fined ATS $530,250 after it determined ATS deviated from required procedures on fuselage skin crack inspections on 14 737s operated by Southwest.
Protocole DC8 at Brazzaville on Sep 12th 2011, runway excursion
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| By Simon Hradecky, created Monday, Sep 12th 2011 23:39Z, last updated Monday, Sep 12th 2011 23:44Z A Protocole Aviation Douglas DC-8, freight flight from Pointe-Noire to Brazzaville (Congo) with 4 crew and a load of food, burst a tyre while landing in Brazzaville and veered off the runway. No injuries occurred, the aircraft received minor damage to the landing gear. Protocole Aviation operates a DC-8-50 registration 9Q-CTA and a DC-8-60 registration TN-AIE (former 9G-MKG). Metars: FCBB 121400Z 31010KT 280V340 8000 SCT020 BKN023 28/19 Q1011 NOSIG FCBB 121300Z 29009KT 230V350 8000 BKN020 29/18 Q1011 NOSIG FCBB 121200Z 28012KT 240V330 8000 SCT020 BKN023 28/19 Q1013 NOSIG FCBB 121100Z 26011KT 220V300 8000 SCT019 BKN023 27/19 Q1014 NOSIG FCBB 121000Z 32008KT 290V350 8000 OVC023 25/19 Q1015 NOSIG  |
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