What's Happening?
Russian investigators have identified an altimeter pressure-reference error as a contributing factor in the fatal crash of an Angara Airlines Antonov An-24 in the Amur region. The accident occurred on July 24 during a non-precision approach to Tynda airport. The crew set the altimeter to a sea-level pressure reference, which led to the aircraft flying significantly lower than intended. The terrain in the area is hilly, and the aircraft collided with trees, resulting in the loss of all 42 passengers, four crew members, and two maintenance personnel. The Russian federal air transport regulator, Rosaviatsia, has classified the accident as a controlled flight into terrain and is conducting further investigations.
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Why It's Important?
This incident highlights the critical importance of accurate altimeter settings in aviation safety. The transition from QFE to QNH pressure references in Russian airspace has been ongoing, and this accident underscores the need for thorough training and understanding of these procedures. The crash has prompted Rosaviatsia to mandate additional training for crews and air traffic controllers, particularly at airports that have recently switched to QNH references. The tragedy serves as a reminder of the potential consequences of procedural errors in aviation and the need for stringent compliance with safety protocols.
What's Next?
Rosaviatsia has instructed regional authorities to ensure additional training for aviation personnel on QNH and QFE pressure procedures. Flight operations manuals may be revised to provide clearer guidance on these settings. The Interstate Aviation Committee continues to probe the crash, and further findings may lead to additional safety recommendations or regulatory changes. The aviation industry will likely focus on improving training and compliance to prevent similar incidents in the future.
