EASA issues Emergency Airworthiness Directive for A359s due to possible fuel/air ignition in fuel tanks
Last Update: August 24, 2017 / 17:09:16 GMT/Zulu time
Incident Facts
Classification
News
In the A350 design, the hydraulic fluid cooling system is located in the fuel tanks. Recently, an overheat failure mode of the the A350 hydraulic Engine Driven Pump (EDP) has been found. Such EDP failure may cause a fast temperature rise of the hydraulic fluid.
This condition, if not detected and corrected, combined with an inoperative Fuel Tank Inerting System (FTIS), could lead to an uncontrolled overheat of the hydraulic fluid, possibly resulting in ignition of the fuel-air mixture in the affected fuel tank.
Airbus have released an updated Master Minimum Equipment List "that incorporates restrictions to avoid an uncontrolled overheat of the hydraulic system". Several items have changed to "NO GO".
The new dispatch requirements and MEL requirements have to be implemented on the next flight.
The EASA advises that this EAD is an interim measure, additional Airworthiness Directives may follow.
Incident Facts
Classification
News
This article is published under license from Avherald.com. © of text by Avherald.com.
Article source
You can read 2 more free articles without a subscription.
Subscribe now and continue reading without any limits!
Read unlimited articles and receive our daily update briefing. Gain better insights into what is happening in commercial aviation safety.
Send tip
Support AeroInside by sending a small tip amount.
Newest articles
Cityjet CRJ9 near Zurich on Oct 6th 2025, smoke in cabin
A Cityjet Canadair CRJ-900 on behalf of SAS Scandinavian Airlines, registration EI-HSE performing flight SK-1684 from Milan Malpensa (Italy) to…
Fleet type match
Jin B772 at Okinawa on Oct 7th 2025, engine failure
A Jin Air Boeing 777-200, registration HL7743 performing flight LJ-342 from Okinawa (Japan) to Seoul (South Korea) with 405 people on board, was…
Subscribe today
Are you researching aviation incidents? Get access to AeroInside Insights, unlimited read access and receive the daily newsletter.
Pick your plan and subscribePartner
ELITE Simulation Solutions is a leading global provider of Flight Simulation Training Devices, IFR training software as well as flight controls and related services. Find out more.
SafetyScan Pro provides streamlined access to thousands of aviation accident reports. Tailored for your safety management efforts. Book your demo today
AeroInside Blog
Popular aircraft
Airbus A320Boeing 737-800
Boeing 737-800 MAX
Popular airlines
American AirlinesUnited
Delta
Air Canada
Lufthansa
British Airways