light failure

light failure

A light shall be considered to have failed when for any reason the average intensity determined using the specified angles of beam elevation, toe-in and spread falls below 50 per cent of the specified average intensity of a new light (ICAO).
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
References in periodicals archive ?
They added that due to light failure, they can't go inside and will continue search operations today.
Contact with water can lead to an open circuit, causing rear tailgate lid light failure, and, in some cases, a short circuit that trips the position light fuse, deactivating the exterior position lights and some interior lighting.
A MAJOR traffic light failure caused chaos for motorists in Liverpool city centre yesterday.
A collision at the busy 'hamburger' junction in the Boughton area of Chester has resulted in a traffic light failure.
Adding to the build-up was a traffic light failure on the other side of the Erskine Bridge at the Kilbowie Roundabout on the A82, which caused delays on the bridge going northbound.
Slow-moving traffic is reported in the area due to the traffic light failure on the A320 at the A3, on Monday morning (January 15).
The walk was originally planned for Wednesday but was delayed because of a camera light failure, (https://blogs.nasa.gov/spacestation/2017/10/19/final-spacewalk-preps-before-november-cygnus-launch/) according to a NASA release .
A traffic light failure at the Tile Hill gyratory saw traffic in the area grind to a halt during Tuesday afternoon rush hour, causing travel chaos.
07:11 Light failure at rush hour Traffic lights stopped working on the A19 at Testos Roundabout due to a power cut.
Gateshead's cabinet member for environment and transport, Malcolm Brain, said: "Thousands of drivers use Gateshead's roads as part of their journey to and from work every day, and they'll know only too well that a simple breakdown or a traffic light failure can have a huge impact on that journey.