American A319 near Miami on Oct 28th 2017, temporary vibrations, ice shedding suspected
Last Update: November 2, 2017 / 21:27:20 GMT/Zulu time
A passenger reported about 20 minutes into the flight, just after levelling off at an intermediate cruise level, there were strong vibrations. Cabin crew, visibly uneasy, stopped the cabin service and announced all passengers should remain well strapped in. The engines audibly ran down, about 30 seconds later the vibrations ceased, the engine accelerated again and the flight continued normally. There was no announcement from the cockpit, cabin crew however reported that the captain told them he had never experienced something like this in 25 years, he suspected ice was shedding from fuselage and engines. There had been stormy weather out of Miami, they needed to quickly climb through cumulonimbus clouds which may have caused icing. The captain would have maintenance check the engines after landing.
Data off the aircraft's transponder suggest the aircraft levelled off at FL280 at about 507 knots over ground, slowed to about 410 knots over ground, then accelerated again to 500 knots over ground and continued the climb.
The aircraft remained on the ground in Mexico City for about 2 hours (about one hour longer than scheduled), then departed for the return flight.
Aircraft Registration Data
This article is published under license from Avherald.com. © of text by Avherald.com.
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