"Lebanese television announces the crash of an Israeli fighter plane and Tel Aviv denies [the report]"
التلفزيون اللبناني يعلن إسقاط طائرة حربية إسرائيلية وتل ابيب تنفي
The Dubai-based and Saudi owned al-'Arabiyya article goes on to say that there are conflicting reports about the event, but that Lebanese television (they don't say what station) showed something falling from the sky. There are no pictures and there is no other evidence, and the article also notes that an Israeli security source has denied the reports. On Qatar's al-Jazeera, there's not even a headline or article about the supposed downing of the plane. This is about an hour and a half or even more after the news were first released. The news-ticker also doesn't mention the story. That must mean that is is too iffy even for al-Jazeera to publish. The Lebanese TV station LBC also makes no mention of this story. America's Arabic-language news radio station Radio Sawa, is another news outlet that does mention the story. An article in Radio Sawa says that Lebanese defence sources asked about the matter said that they could not confirm the report:
من ناحية أخرى، قالت مصادر أمنية لبنانية إنها لا تستطيع تأكيد نبأ سقوط الطائرة
The same sources added that it is possible that some part of the fuel tank became detached from the plane:
ربما يكون عبارة عن صهريج وقود انفصل عن جسم الطائرة