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Dublin Airport Fuel Line CCTV

Dublin Airport Fuel Line Survey Dublin Airport Fuel Line Survey

Overview: CCTV survey of the 400mm ductile iron fuel pipes within Dublin Airport to check for defects/debris before the fuel is pumped into the lines for refuelling commercial aircraft.

 

Location: Pier 4, Dublin Airport
Operations:  CCTV Survey
Client: Dublin Airport Authority
Consultant: RPS Group

 

The survey carried out by Environmental Techniques on behalf of Dublin Airport Authority at Dublin airport was of a dormant fuel pipe designed for the future refuelling of aircraft at their stands via fuel hydrant connections (instead of using fuel tankers.) The fuel pipe runs in a continuous loop around Pier 4 at Terminal 2. 

The survey was undertaken to determine the current condition of the hydrant, to assess any construction debris defects, and determine the presence, if any, of water in the pipe. The fuel pipe is a 400mm internally and externally coated carbon steel pipe, approximately 1000m in length and approximately 2m below ground level. 

Access was limited to two hydrant chambers on either sides of the pier, each access chamber was approximately 4mx2m and 3m deep with the fuel pipe sitting 1m off the floor of the chamber. 

The fuel pipe, has been maintained under a nitrogen gas atmosphere to prevent any build-up of moisture in the pipe. The nitrogen gas was vented off by a specialist contractor prior to the removal of the in-line spool piece of the fuel pipe at each access chamber. With the spool pieces removed this allowed Environmental Techniques to insert the CUES CPR camera system into the fuel pipe. The survey was carried out by stopping and scanning at each pipe joint and hydrant connection. Where the bends were too tight for the CPR to negotiate the 10x optical and 4x digital zoom cameras were used to get a visual overlap survey.

With the works being carried out airside, there was huge importance attached to working within the allotted time window to avoid any impact on the airport’s operations. This included the requirement for each spool piece to be refitted, torqued and the access chamber lids reinstated at the end of each shift before the arrival of aircrafts to the stands at 04.00.

Environmental Techniques were able to survey 700+ meters over the 2 night shifts. The restricted working hours included the need for personnel / vehicle checks to be undertaken by airside security and also the removal and replacement of spool pieces. The crews worked quickly and efficiently, and the project finished well within the allotted timeframe. The execution of the works was complimented by Cormac Bradley from RPS Group.

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