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OAN 022/2021 – INSTALLATION OF AIRCRAFT FUEL HYDRANT SYSTEM CATHODIC PROTECTION GROUND BED.
OAN REF:‐ 022/2021 DATE OF ISSUE:‐ 22/04/21 EFFECTIVE DATE:‐ 04/05/21 EXPIRY DATE:‐ 06/07/21
PLEASE ENSURE THIS INFORMATION IS PROMULGATED TO ALL STAFF
1.0 Overall, a programme of circa ten weeks’ work to install an aircraft fuel hydrant system cathodic protection ground bed underneath a section of pavement on Taxiway Echo. Whilst work is in progress multiple stand closures and the use of several non‐standard aircraft pushback manoeuvres will be required due to restricted taxiway capability in the vicinity of the work area. The aircraft fuel hydrant system will remain active throughout.
2.0 SCOPE & LOCATION OF WORKS
2.1 SUMMARY The overall scope of work will be as follows:
Breakout required areas of taxiway and apron pavement.
Installation of 1 x aircraft fuel hydrant system cathodic protection ground bed measuring approximately 30 x 2.5m.
Attachment of new CP lug to existing pipework on Stand 71.
Installation of new cable chases.
Laying of new PQ concrete.
Curing of newly laid PQ concrete.
Pavement joint sealing.
2.2 There will be two areas of work, the first area being located on Taxiway Echo with a fenced work area (40 x 40m) being erected within the taxiway strip abeam Stand 82.
2.3 A second fenced work area will also be erected on Stand 71.
2.4 At various times during the overall works programme there will be a requirement for the contractor to carry out work outside of the demarked work areas. Such work will be managed tactically to avoid further operational disruption.
3.0 PROGRAMME
3.1 Overall, the work will commence on Tuesday 4th May and will be completed by Tuesday 6th July 2021.
3.2 The work will take place during daytime hours, nominally 08:00 ‐ 17:00L.
3.3 The phasing of works activities will take place as follows:
• Tuesday 4th May – Thursday 1st July ‐ Work will be located on Taxiway Echo.
• Friday 21st May – Tuesday 6th July ‐ Work will also be located on Stand 71.
N.B: There may be a slight variation in the above dates in the event of poor weather restricting overall works progress.
4.0 OPERATIONAL IMPLICATIONS
4.1 Taxiways
4.1.1 From Tuesday 4 th May until Thursday 1 st July, Taxiway Echo will be closed H24 abeam Stand 82 and a fenced work area will be erected. Aircraft will still be permitted to use the taxiway however it will operate as a ‘double cul‐de‐sac’ and there will not be a through‐route past Stand 82.
4.2 Aircraft Stands
4.2.1Whilst work is in progress on Taxiway Echo, the following stands will be closed H24:
68 (C & R), 69 (L & C), 70C, 71C, 80 (all centrelines), 82 (all centrelines), 83C, 84C & 231 (all centrelines).
4.2.2 Additionally, Stand 71R will be closed H24 from Friday 21st May until Tuesday 6 th July. Stand 71L will be available for the duration of the works.
4.2.3 Whilst work is in progress on Taxiway Echo Stands 69, 70, 71, 83 and 84 will be restricted to maximum aircraft size of ICAO Code C (B737/A321).
4.3 Aircraft Pushback Manoeuvres
4.3.1 For the duration of the works programme, various non‐standard aircraft pushback manoeuvres will be required due to the lack of a through‐route for aircraft on Taxiway Echo.
4.3.2All non‐standard pushback manoeuvres are to be carried out as directed by ATC.
5.0 LOW VISIBILITY PROCEDURES (LVP)
5.1 The work will have no effect on the airport’s ability to operate during periods of low visibility.
6.0 WORK AREA DEMARCATION
6.1 The work areas will be demarked by full height heras fencing, mounted on alternate red/white base boards. The southern boundaries of the work area located on Taxiway Echo will be demarked by mobile blast screens.
6.1.1 The entirety of both work area perimeters will be lit H24 by low intensity, steady red obstacle lighting.
6.2 Portions of taxiway centreline lighting leading to/through the closed portion of Taxiway Echo will be disabled.
View attachment 23302
OAN REF:‐ 022/2021 DATE OF ISSUE:‐ 22/04/21 EFFECTIVE DATE:‐ 04/05/21 EXPIRY DATE:‐ 06/07/21
PLEASE ENSURE THIS INFORMATION IS PROMULGATED TO ALL STAFF
1.0 Overall, a programme of circa ten weeks’ work to install an aircraft fuel hydrant system cathodic protection ground bed underneath a section of pavement on Taxiway Echo. Whilst work is in progress multiple stand closures and the use of several non‐standard aircraft pushback manoeuvres will be required due to restricted taxiway capability in the vicinity of the work area. The aircraft fuel hydrant system will remain active throughout.
2.0 SCOPE & LOCATION OF WORKS
2.1 SUMMARY The overall scope of work will be as follows:
Breakout required areas of taxiway and apron pavement.
Installation of 1 x aircraft fuel hydrant system cathodic protection ground bed measuring approximately 30 x 2.5m.
Attachment of new CP lug to existing pipework on Stand 71.
Installation of new cable chases.
Laying of new PQ concrete.
Curing of newly laid PQ concrete.
Pavement joint sealing.
2.2 There will be two areas of work, the first area being located on Taxiway Echo with a fenced work area (40 x 40m) being erected within the taxiway strip abeam Stand 82.
2.3 A second fenced work area will also be erected on Stand 71.
2.4 At various times during the overall works programme there will be a requirement for the contractor to carry out work outside of the demarked work areas. Such work will be managed tactically to avoid further operational disruption.
3.0 PROGRAMME
3.1 Overall, the work will commence on Tuesday 4th May and will be completed by Tuesday 6th July 2021.
3.2 The work will take place during daytime hours, nominally 08:00 ‐ 17:00L.
3.3 The phasing of works activities will take place as follows:
• Tuesday 4th May – Thursday 1st July ‐ Work will be located on Taxiway Echo.
• Friday 21st May – Tuesday 6th July ‐ Work will also be located on Stand 71.
N.B: There may be a slight variation in the above dates in the event of poor weather restricting overall works progress.
4.0 OPERATIONAL IMPLICATIONS
4.1 Taxiways
4.1.1 From Tuesday 4 th May until Thursday 1 st July, Taxiway Echo will be closed H24 abeam Stand 82 and a fenced work area will be erected. Aircraft will still be permitted to use the taxiway however it will operate as a ‘double cul‐de‐sac’ and there will not be a through‐route past Stand 82.
4.2 Aircraft Stands
4.2.1Whilst work is in progress on Taxiway Echo, the following stands will be closed H24:
68 (C & R), 69 (L & C), 70C, 71C, 80 (all centrelines), 82 (all centrelines), 83C, 84C & 231 (all centrelines).
4.2.2 Additionally, Stand 71R will be closed H24 from Friday 21st May until Tuesday 6 th July. Stand 71L will be available for the duration of the works.
4.2.3 Whilst work is in progress on Taxiway Echo Stands 69, 70, 71, 83 and 84 will be restricted to maximum aircraft size of ICAO Code C (B737/A321).
4.3 Aircraft Pushback Manoeuvres
4.3.1 For the duration of the works programme, various non‐standard aircraft pushback manoeuvres will be required due to the lack of a through‐route for aircraft on Taxiway Echo.
4.3.2All non‐standard pushback manoeuvres are to be carried out as directed by ATC.
5.0 LOW VISIBILITY PROCEDURES (LVP)
5.1 The work will have no effect on the airport’s ability to operate during periods of low visibility.
6.0 WORK AREA DEMARCATION
6.1 The work areas will be demarked by full height heras fencing, mounted on alternate red/white base boards. The southern boundaries of the work area located on Taxiway Echo will be demarked by mobile blast screens.
6.1.1 The entirety of both work area perimeters will be lit H24 by low intensity, steady red obstacle lighting.
6.2 Portions of taxiway centreline lighting leading to/through the closed portion of Taxiway Echo will be disabled.
View attachment 23302