FAA L-864 Medium Intensity Obstruction Light
Universal AC & Universal DC Models
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If the lantern is not fitted with GPS Synchronization Option, then the following conditions
are not possible: 1 Quick Flash, and Slow Flashing.
Certification
Certified to: FAA AC NO: 150/5345-43 H, L-864
FAA Engineering Brief No. 67
DGAC L-864
Transport Canada: CAR, Standard 621; CL-864
Yellow Status
LED
Lantern Status
Lantern Condition
Off
Daylight, Standby
OFF
Lantern is in Daylight and in Dusk till
Dawn mode or in Standby Mode
Quick Flashing
0.15s on, 0.15s
off
Day to night
transition
OFF
Light is activating and will turn
on after detecting 30 seconds of
continuous darkness.
2 Quick
Flashes
every 2s
Night Operation, Not
Synchronized
ON
Lantern is in Normal operating
condition. It is not connected to any
GPS synchronisation
1 Quick
Flashes
every 2s
Night Operation,
Sync in Progress
ON
Lantern is ‘re-syncing’ with GPS.
The lantern re-syncs with the GPS
every 15 minutes.
Slow Flashing
1.5s on, 1.5s off
Night Operation,
Synchronized
ON
Normal operating condition. Lantern is
synchronised to GPS-enabled lanterns
2 Quick
flashes
every 11s
Night Operation,
Synchronized
ON
Lantern is a Hard Wire
Synchronisation Slave.
The LEDs are located on the side of the lantern.
