PPRuNe Forums - View Single Post - strange noise on Airbus

21st December 2017 | 11:41

#2 (permalink)

Metro man

Joined: Jan 2000

Posts: 2,372

Likes: 1

From: Asia

Its the PTU or power transfer unit which allows two of the hydraulic systems to share pressure through a mechanical connection if one of them has a higher demand placed on it.

Totally normal and nothing to worry about.

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