LPFR secondary power supply arrangements differ between normal and low visibility operations.

A5274/26

PERM

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ADOther

2026-09-08 14:29 - PERM

Duration:PERMANENT

Period of Applicability

2026-09-08 14:29 - PERM

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Interpretation

At LPFR, during normal visibility operations (NVO), secondary generators provide alternative power with a switch-over time of less than 15 seconds. During low visibility operations (LVO), one generator is the primary source, while the national power grid or second LPFR generator is the standby source, providing a switch-over time of less than 1 second. This information relates to AIP LPFR AD 2.15.

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Raw NOTAM

A5274/26 NOTAMN
Q) LPPC/QFAXX/IV/NBO/A /000/999/3701N00758W005
A) LPFR B) 2609081429 C) PERM
E) SECONDARY POWER SUPPLY: DURING NORMAL VISIBILITY OPERATIONS
(NVO), THE LPFR SECONDARY GENERATORS PROVIDE AN ALTERNATIVE POWER
SUPPLY WITH A SWITCH-OVER TIME OF LESS THAN 15 SECONDS. DURING LOW
VISIBILITY OPERATIONS (LVO), ONE POWER SUPPLY GENERATOR OPERATES AS
THE PRIMARY POWER SOURCE, WHILE THE NATIONAL POWER GRID OR THE
SECOND LPFR GENERATOR ACTS AS THE STANDBY POWER SOURCE, ENSURING A
SWITCH-OVER TIME OF LESS THAN 1 SECOND.
REF AIP LPFR AD 2.15

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