FlyerTalk Forums - View Single Post - 4 digital "chirps" before landing: what do they mean?
Thread: 4 digital "chirps" before landing: what do they mean?
View Single Post
Old Dec 25, 2017 | 5:31 pm
  #4  
jrl767
FlyerTalk Evangelist
20 Countries Visited
2M
Community Builder
15 Years on Site
 
Join Date: Nov 2009
Location: SEA — the REAL Washington; occasionally in the other Washington (DCA area)
Programs: AS MVPG 100K (Atmos Titanium) / 0.5MM; DL fallen PM (1.58MM = “Complimentary Annual GM”); AA Gold
Posts: 24,368
from my long-ago Boeing Flight Test experience, I’m pretty sure those four chirps are indeed the MM ... they’re clearly coming thru the flight deck speakers, and they’re generally audible in the first few rows of the cabin
jrl767 is offline  
Reply