PPRuNe Forums - View Single Post - 737 IRS alignment
Thread: 737 IRS alignment
View Single Post
Old 29th June 2023 | 08:08
  #2 (permalink)  
FlyingStone
 
Joined: Apr 2010
Posts: 1,319
Likes: 100
From: IRS NAV ONLY
Boeing’s guidance is to use the most accurate source of position information for IRS alignment.

If your airline prefers GPS L, it is likely because MMR 1 is powered by the AC standby bus, and will likely get a valid GPS fix before MMR 2 (GPS R).
FlyingStone is offline  
Reply
0