Brussels Airlines RJ1H at Brussels on Oct 27th 2009, hydraulics fluid hits passengers during taxi
Last Update: December 27, 2012 / 14:27:43 GMT/Zulu time
The rupture of the hydraulic pressure line was caused by metal fatigue at the weld joint of the pipe, associated with a low level of weld penetration.
The aircraft had already landed and was taxiing when the crew noticed the loss of the green hydraulic system and the loss of nose wheel steering. At that time cabin crew reported hydraulic fluid leaking into the cabin with some passengers being contaminated by the fluid. The aircraft stopped on the inner 9 taxiway, the passengers disembarked via the forward air stair onto the taxiway.
Four passengers showing signs of skin irritation on face and shoulder were taken to a hospital and discharged from hospital later the same day.
An examination of the aircraft revealed a pressure pipe of the green hydraulic system had ruptured. There was a large contamination of the aircraft systems with hydraulic fluid including for example all electrical wiring right hand side between frames 25 and 26, cabin lighting, cabin structure, cabin structure insulation, all fuel processor units, engine start system, radio altimeter #2, air conditioning ducts and more.
The ruptured pipe was made of stainless steel connecting the green hydraulic system to the right hand wing spoiler control valve and was located between frames 25 and 26. The crack was about 2.5 cm (1 inch) long. The line had been installed during aircraft production and had not been removed or replaced since.
Laboratory examination revealed the pipe had a linear defect running along the inner surface of the pipe, which coincided with the base of the weld inside the pipe. "The pipe had failed due to fatigue originating at the edge of the linear defect and progressing through to the outer surface."
British Aerospace developed a plastics sealed envelope around the hydraulic pipe between frames 25 and 26 in order to contain any escaped hydraulic fluid and channel it to the cabin floor. An according service bulletin was issued in October 2010 and updated December 2010. EASA made the implementation of the service bulletin mandatory by releasing an air worthiness directive in November 2011.
The investigation did not release any safety recommendation being satisfied with the safety action already taken by British Aerospace and EASA.
This article is published under license from Avherald.com. © of text by Avherald.com.
Read unlimited articles and receive our daily update briefing. Gain better insights into what is happening in commercial aviation safety.
Support AeroInside by sending a small tip amount.
January 2023 was a busy month in aviation safety. Please find our summary below.All in all, 96 new articles have been published during last month.…
2022 is over and it is time to look back and see again what happend in aviation safety. Have a look at our summary below.All in all, 1093 new…
December 2022 was a busy month in aviation safety. Please find our summary below.All in all, 88 new articles have been published during last month. 6…
November 2022 was a busy month in aviation safety. Please find our summary below.All in all, 78 new articles have been published during last month.…
October 2022 was a busy month in aviation safety. Please find our summary below.All in all, 70 new articles have been published during last month. 5…
A LATAM Boeing 777-300, registration PT-MUI performing flight LA-8071 from Frankfurt/Main (Germany) to Sao Paulo Guarulhos,SP (Brazil), was enroute…
An Air France Airbus A320-200, registration F-HEPC performing flight AF-1269 from Manchester,EN (UK) to Paris Charles de Gaulle (France), was…
Are you researching aviation incidents? Get access to AeroInside Insights, unlimited read access and receive the daily newsletter.Pick your plan and subscribe
A new way to document and demonstrate airworthiness compliance and aircraft value. Find out more.
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.
Never miss an article from AeroInside. Subscribe to our free weekly newsletter and join 5604 existing subscribers.
Popular aircraftAirbus A320
Boeing 737-800 MAX
Popular airlinesAmerican Airlines