Pengamat : Kegagalan Mesin Bukan Penyebab Jatuhnya Lion Air JT610


Pengamat : Kegagalan Mesin Bukan Penyebab Jatuhnya Lion Air JT610

Liputan46 – Alvin Lie yang merupakan seorang pengamat penerbangan mengatakan jika masih hidupnya mesin pesawat Lion Air PK-LQP ketika terjatuh ke perairan di utara Tanjung Karang berarti penyebab jatuhnya pesawat bukan disebabkan oleh kegagalan mesin.

Alvin menuturkan bahwa kemungkinan lain penyebab jatuhnya pesawat ini bisa saja karena sistem hidrolis pesawat yang bermasalah. Sistem hidrolis ini merupakan sebuah sistem tekanan udara di dalam pesawat yang dipakai untuk mengendalikan sistem kemudi serta menggerakkan beberapa bagian pesawat yang lain.

Hal serupa juga diungkap oleh pengamat penerbangan lain yakni Arista Atmadjati. Menurutnya bisa saja pesawat memang terjatuh bukan disebabkan oleh kegagalan mesin, namun karena tidak terkontrol. Arista pun menyebut ada pula kemungkinan kekacauan pada instrumen yang dibaca oleh pilot. Hal serupa juga diungkap Alvin.

Kasus pesawat jatuh dengan keadaan mesin yang masih menyala menurutnya pun bukan sekali ini saja terjadi. Sebelumnya, tahun 2009 kasus serupa menimpa Air France yang berangkat dari Rio de Jeneiro, Brazil menuju Paris, Perancis.

Pesawat Airbus A330 tersebut jatuh ke Samudra Atlantik karena kekacauan pengukuran pipa pitot pesawat yang tertutup oleh es. Pipa kecil pada bagian hidung pesawat ini berfungsi untuk mengukur kecepatan pesawat, barometer, serta naik-turun pesawat. Menurut Alvin hal itu disebabkan kesalahan rancangan dari pihak pembuat pesawat.

Saat ditanya apakah terdapat kemungkinan serupa yang terjadi dalam penerbangan Lion Air, Alvin tidak dapat memastikan sampai CVR (Cockpit Voice Recorder) yang terdapat di kotak hitam pesawat ditemukan. Terpecahnya pesawat di dalam air, diungkapkan Alvin karena pesawat terjatuh dari ketinggian 3600 kaki dalam hitungan detik. Sehingga percepatan jatuhnya pesawat disebabkan oleh gravitasi memperparah situasi jatuhnya pesawat.

Alvin pun melihat terdapat keanehan dari ketinggian pesawat usai lepas landas. Karena ketinggian pesawat setelah lepas landas tidak mencapai 20.000 kaki. Berdasarkan data dari FlighRadar24, usai lepas landas pesawat ada pada ketinggian 5.500 kaki dan kemudian turun ke 4.625 kaki, dimana pergerakan selama 10 menit sebelum jatuh pesawat sendiri memang mengalami ketidakstabilan ketinggian.

Pada penerbangan malam sebelum terjadinya kecelakaan, pesawat ini disebut sudah mempunyai masalah dengan sensor yang dipakai untuk mengukur ketinggian serta kecepatan pesawat. Pilot sudah melaporkan hal tersebut ketika menerbangkan pesawat dari Denpasar ke Jakarta. Pihak Lion Air menyatakan jika instrumen yang bermasah tersebut sudah dicek oleh pekerja pemelihara pesawat yang diklaim sudah siap digunakan kembali.




31 thoughts on “Pengamat : Kegagalan Mesin Bukan Penyebab Jatuhnya Lion Air JT610

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