Search

Notices
Regional Regional Airlines

TCAS RA's

Thread Tools
 
Search this Thread
 
Old 04-27-2006 | 07:14 PM
  #1  
dash8driver's Avatar
Thread Starter
Gets Weekends Off
 
Joined: Jan 2006
Posts: 101
Likes: 0
From: 737 FO
Default TCAS RA's

Coming out of CLT tonight we had an phantom RA right after takeoff. It showed a target right on top of us, same altitude with instructions to "monitor vertical speed", then "descend, descend", "descend faster". Needless to say scared the **** outta me and the captain but we were in VMC and nobody within 2 miles of our position. This also happened a couple of weeks back doing a visual approach. Anyone have any idea why this might happen or have this happen to them ?
Reply
Old 04-27-2006 | 08:26 PM
  #2  
tomgoodman's Avatar
Gets Weekends Off
 
Joined: Feb 2006
Posts: 6,248
Likes: 0
From: 767A (Ret)
Default False RAs

Years ago we got an advisory to beware of false TCAS indications when flying near the big Navy base at Norfolk; apparently radar/RF emissions from ships. Any DOD facilities near CLT?
Reply
Old 04-27-2006 | 08:37 PM
  #3  
dash8driver's Avatar
Thread Starter
Gets Weekends Off
 
Joined: Jan 2006
Posts: 101
Likes: 0
From: 737 FO
Default

Not that I'm aware of, no. The "phantom" stayed centered wherever we went until we turned the TCAS off, any chance it could have picked up our own transponder as an intruding aircraft ? It's the only other thing I can think of ....
Reply
Old 04-27-2006 | 09:52 PM
  #4  
Gets Weekends Off
20 Years
Gets Weekends Off
 
Joined: Dec 2005
Posts: 4,047
Likes: 20
From: 7ER B...whatever that means.
Default

I know the systems are only remotely similiar but I have had the same thing happen with Garmin 430s with the traffic function. Seemed to happen a lot doing tight turns. Scared the crap out of me a few times before i realized what was happening. From my limited knowledge of TCAS systems it might be a similar phenomenom.
Reply
Old 04-27-2006 | 11:35 PM
  #5  
HSLD's Avatar
APC co-founder
 
Joined: Feb 2005
Posts: 5,853
Likes: 0
From: B777
Default

Originally Posted by dash8driver
Coming out of CLT tonight we had an phantom RA right after takeoff. It showed a target right on top of us, same altitude with instructions to "monitor vertical speed", then "descend, descend", "descend faster". Needless to say scared the **** outta me and the captain but we were in VMC and nobody within 2 miles of our position. This also happened a couple of weeks back doing a visual approach. Anyone have any idea why this might happen or have this happen to them ?
Sounds like a software problem, I'd write it up - then file an FSAP or NASA report.
Reply
Old 04-28-2006 | 07:36 AM
  #6  
rickair7777's Avatar
Prime Minister/Moderator
Veteran: Navy
 
Joined: Jan 2006
Posts: 45,127
Likes: 796
From: Engines Turn or People Swim
Default

I've seen it too on the CRJ, always on 3-5 mile final in major metro areas. I suppose their might be some ground based emitter that causes that at that low altitude. I always follow the RA on the assumption that it might be a helo or a lost student pilot.

Do not disregard the RA even if you think it is bogus.
Reply
Old 04-28-2006 | 08:52 AM
  #7  
captainkudzu's Avatar
Gets Weekends Off
 
Joined: Dec 2005
Posts: 176
Likes: 0
From: Citation
Default

We got a phantom (as opposed to an F4 Phantom) near JAX. At FL360, we got a sudden indication of an aircraft approaching at high speed from 3:00. Just as suddenly, it disappeared. We got a TA, but no RA.

That may have been a software problem also since we got two other TAs on the same trip.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
lpcunity
Regional
2
07-26-2006 06:01 PM

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



Your Privacy Choices