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Front #154
GCOR 5.13.F
An engine may not enter or leave a designated engine servicing area unless:
Granted permission from the foreman to pass the blue flag and you are ringing your engine bell as required in GCOR 5.8.1
Granted permission from the foreman to pass the blue flag
The blue signal is removed from the engine and entrance/exit
You stop and then proceed at restricted speed past the blue flag
Answer: The blue signal is removed from the engine and entrance/exitFeedback: Blue signal protection is in place to keep mechanical personnel safe when they're working. When the blue signals are removed it indicates workmen have been warned of the movement that's about to occur.