هبوط اضطراري لطائرتي A350 التابعة لشركة دلتا ايرلاينز وآسيانا إيرلاينز بسبب سكب السوائل على احد اجهزة القيادة

Incident: Asiana A359 near Manila on Nov 9th 2019, engine shut down in flight


An Asiana Airlines Airbus A350-900, registration HL7579 performing flight OZ-751 from Seoul (South Korea) to Singapore (Singapore) with 310 people on board, was enroute at FL320 over the South China Sea near Manila when the crew needed to shut the right hand engine (Trent XWB) down. The aircraft drifted down to FL230 and diverted to Manila (Philippines) for a safe landing on runway 06 about 80 minutes after turning around.

The airline reported the crew shut the right hand engine down due to a failure in the engine's fuel system. The passengers were taken to hotels while waiting for the replacement aircraft.

A replacement Airbus A350-900 registration HL8362 reached Singapore with a delay of about 18 hours.

On Feb 6th 2020 the European Aviation Safety Agency (EASA) released Emergency Airworthiness Directive 2020-0020-E requiring a "a liquid prohibited zone in the cockpit, and the procedures to be followed in the case of inadvertent liquid spillage on the centre pedestal." The EASA argues:


Two in-service occurrences were reported involving inadvertent liquid spillage on the ENG START panel or ECAM Control Panel (ECP) on the centre pedestal in the flight deck on A350 aeroplanes. In both cases, the aeroplane experienced an un-commanded engine in-flight shut-down (IFSD) of an engine some time after the liquid spillage. Subsequent engine relight attempts were not successful.

In both events, the flight crew performed a diversion and landed the aeroplane safely.

Results of the preliminary technical investigations indicate abnormal operation of the components of the ENG START panel or ECP due to liquid spillage in the system.

This condition, if not corrected, could lead to a dual engine IFSD, possibly resulting in a forced landing with consequent damage to the aeroplane and injury to occupants.

The second case referred to by EASA happened in January 2020, see Incident: Delta A359 over Beaufort Sea on Jan 21st 2020, engine trouble.

Incident: Delta A359 over Beaufort Sea on Jan 21st 2020, engine trouble

A Delta Airlines Airbus A350-900, registration N508DN performing flight DL-159 from Detroit,MI (USA) to Seoul (South Korea) with 189 people on board, was enroute at FL380 over the Beaufort Sea, when the crew received abnormal indications for one of the engines (Trent XWB) and drifted the aircraft down to FL220. The aircraft diverted to Fairbanks,AK (USA) where the aircraft landed safely on runway 20R about two hours later, vacated the runway and stopped for an inspection by emergency services.

Passengers reported the crew told them they were diverting to Fairbanks due to engine issues.

Local emergency services were dispatched to Fairbanks Airport with the information the right hand engine of the aircraft had been shut down.

A replacement Airbus A350-900 registration N503DN was dispatched from Detroit to Fairbanks, departed for the continuation flight DL-159A about one hour ago and is estimated to reach Seoul with a delay of 21 hours.

The occurrence aircraft remained on the ground in Fairbanks for about 27 hours, then positioned to Minneapolis,MN (USA) and returned to service about 9 hours after landing in Minneapolis.

On Jan 28th 2020 the Canadian TSB reported the right hand engine surged which led to a roll back and subsequent shut down.

On Feb 6th 2020 the European Aviation Safety Agency (EASA) released Emergency Airworthiness Directive 2020-0020-E requiring a "a liquid prohibited zone in the cockpit, and the procedures to be followed in the case of inadvertent liquid spillage on the centre pedestal." The EASA argues:

Two in-service occurrences were reported involving inadvertent liquid spillage on the ENG START panel or ECAM Control Panel (ECP) on the centre pedestal in the flight deck on A350 aeroplanes. In both cases, the aeroplane experienced an un-commanded engine in-flight shut-down (IFSD) of an engine some time after the liquid spillage. Subsequent engine relight attempts were not successful.

In both events, the flight crew performed a diversion and landed the aeroplane safely.

Results of the preliminary technical investigations indicate abnormal operation of the components of the ENG START panel or ECP due to liquid spillage in the system.

This condition, if not corrected, could lead to a dual engine IFSD, possibly resulting in a forced landing with consequent damage to the aeroplane and injury to occupants.