- Moderator
- #361
OAN 002/2021 – HIGH VOLTAGE CABLE REPLACEMENTS – MASHCo FUEL FARM.
OAN REF:‐ 002/2021 DATE OF ISSUE:‐ 18/01/21 EFFECTIVE DATE:‐ 25/01/2 EXPIRY DATE:‐ 29/01/21
PLEASE ENSURE THIS INFORMATION IS PROMULGATED TO ALL STAFF
1.0 SUMMARY
A four‐night programme of landside work to replace high voltage electrical cables that are routed
between Substation R and the MASHCo fuel farm. During the overall works programme there will be 2 x
periods of circa eight hours where there will be reduced resilience in the power supply serving Terminals
1 and 3 aircraft fuel hydrant systems. Although the Terminals 1 & 3 aircraft fuel hydrant systems will
remain active, the work will be coordinated such that it is undertaken at night when there is no demand
for aircraft to be fuelled.
2.0 SCOPE & LOCATION OF WORKS
2.1 The scope of work will be the replacement of high voltage electrical cables 2262 and 2009.
2.2 All work will be located landside at Substation R and the MASHCo fuel farm substation.
3.0 PROGRAMME
3.1 The work will commence on the night of Monday 25th and be completed by the morning of Friday 29th
January 2021.
3.2 Nightly working hours will be 21.30 – 05:00L.
3.3 The nightly works activities will take place as follows:
25th & 26th January – Installation of new cables.
27th January – Switchover to new cable 2262. Existing Cable 2009 will be sole power supply to
the aircraft fuel hydrant system.
28th January – Switchover to new cable 2009. New cable 2262 will be sole power supply to the
aircraft fuel hydrant system.
4.0 OPERATIONAL IMPLICATIONS
4.1 Aircraft Fuel Hydrant System
4.1.1 During the nightly working times on 27th and 28th January there will be no power supply to the portion
of the aircraft fuel hydrant system serving Terminal 2, however this portion of the system will remain
depressurised and unused during these works due to the ongoing consolidation of aircraft operations
into Terminal 1.
4.1.2 During the nightly working times on 27th and 28th January the portion of the aircraft fuel hydrant system
serving Terminals 1 and 3 will remain active, however there will be no backup power supply. For that
reason, the work will be scheduled to take place when there is no demand for aircraft fuel.
4.1.3 Outside of the nightly working times, the aircraft fuel hydrant system will be available for use, as normal.
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.
OAN REF:‐ 002/2021 DATE OF ISSUE:‐ 18/01/21 EFFECTIVE DATE:‐ 25/01/2 EXPIRY DATE:‐ 29/01/21
PLEASE ENSURE THIS INFORMATION IS PROMULGATED TO ALL STAFF
1.0 SUMMARY
A four‐night programme of landside work to replace high voltage electrical cables that are routed
between Substation R and the MASHCo fuel farm. During the overall works programme there will be 2 x
periods of circa eight hours where there will be reduced resilience in the power supply serving Terminals
1 and 3 aircraft fuel hydrant systems. Although the Terminals 1 & 3 aircraft fuel hydrant systems will
remain active, the work will be coordinated such that it is undertaken at night when there is no demand
for aircraft to be fuelled.
2.0 SCOPE & LOCATION OF WORKS
2.1 The scope of work will be the replacement of high voltage electrical cables 2262 and 2009.
2.2 All work will be located landside at Substation R and the MASHCo fuel farm substation.
3.0 PROGRAMME
3.1 The work will commence on the night of Monday 25th and be completed by the morning of Friday 29th
January 2021.
3.2 Nightly working hours will be 21.30 – 05:00L.
3.3 The nightly works activities will take place as follows:
25th & 26th January – Installation of new cables.
27th January – Switchover to new cable 2262. Existing Cable 2009 will be sole power supply to
the aircraft fuel hydrant system.
28th January – Switchover to new cable 2009. New cable 2262 will be sole power supply to the
aircraft fuel hydrant system.
4.0 OPERATIONAL IMPLICATIONS
4.1 Aircraft Fuel Hydrant System
4.1.1 During the nightly working times on 27th and 28th January there will be no power supply to the portion
of the aircraft fuel hydrant system serving Terminal 2, however this portion of the system will remain
depressurised and unused during these works due to the ongoing consolidation of aircraft operations
into Terminal 1.
4.1.2 During the nightly working times on 27th and 28th January the portion of the aircraft fuel hydrant system
serving Terminals 1 and 3 will remain active, however there will be no backup power supply. For that
reason, the work will be scheduled to take place when there is no demand for aircraft fuel.
4.1.3 Outside of the nightly working times, the aircraft fuel hydrant system will be available for use, as normal.
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.