spiramirabilis

Did you submit your DS-3025 (medical from Australia) with your AOS? It's kinda tricky, cause that medical is only good for one year (in some cases 2 years with the new rule USCIS launched a few months ago), but because they are so backlogged they sometimes request a new medical.
If you did send the DS-3025, I would just get the I-693 done and take it to the interview. If you can't get it in time and explain it to them at the interview, worst case scenario they'll tell you to submit it before they can make their decision. You unfortunately won't be the first one to leave the interview with an RFE cause of the medical, although it's fully their fault that it is expired. So better safe then sorry. 
If you didn't send the DS-3025, I would call USCIS and double check with them if you need the I-693.

Can we see your RFE. Most commonly an I693 is asked for on a "courtesy letter". It's not actually an RFE. Do you know the difference?

Another Philly filer from January 2018 got their notice yesterday for an interview. This is so, so frustrating. Totally feels like we’ve been forgotten about.

Thanks so much for the tip - I set it up properly this morning (with both the mail alerts and the browser one with sound) and hey presto! Just got an appointment on the 14th!
 
If it's helpful information at all to anyone, the appointment popped up around 11.15am EST today (a Saturday). No idea if that's a normal time in general/for this office/etc.

Hello! After one year and 4 months I filed for AOS, finally they sent me the interview letter 🙂🤗😊😀😃☺ It's on May 31
Any tips and advances to be prepared for the interview?
Thanks ☺

My AOS took 1 year (almost to the day). I was one of the August 2016 filers, and about the only one who didn’t get an interview within the first five months, so I can totally relate to your frustration. 
 
I made an infopass appointment after waiting for 7 months. They couldn’t tell me much. I contacted my senator after 9 months of waiting, they responded few weeks later and gave me few reasons why my case could be taking a while.
 
I received an interview notice few days after I heard from the senator’s office. Overall, I think it was definitely beneficial to reach out to them and ask for assistance though I can’t tell you whether it was a natural course of action or the senator’s office phone call that triggered the interview appointment. 
 
And as as far as your travel plans go - sometimes airlines allow you to exchange the plane tickets for airline credit that you can use in the future. It is not something they mention online but depending who you call in customer support - they are able to extend this courtesy to you. And if the first person strictly denies this to you - sometimes calling again and talking to someone else helps as things like that often depend on the person’s mood.
 
Good luck to you! I hope you get good news soon.

You'll likely end up waiting forever until a slot opens. This is how you get an infopass appointment faster:
Set up an auto refresh and website change detector on your browser, you can find this add-on/extension to notify you as soon as the webpage changes.  For example if you use Google Chrome as a browser the extensions would be "SuperAuto Refresh" and "Visualping". 
Then go to the USCIS infopass page where you always see the message "Currently, there are no available appointments. Please check again tomorrow."  and set the plugin to auto refresh.  Then set Visualping to monitor to check it every minute (one minute usually works the best).  That's it! It will notify you with a pop up when the page appears with appointment dates. You can also set it to get an email sent to you when it changes. It personally worked best for me if I was at work and online for 9 hours a day anyways to instantly check it when I got the notification as sometimes it's just an ad popping up that led to the alarm. 
 
Even though people say that appointments are added overnight. I always got my infopass appointments around 1-3pm PST. 
 
 

Congressman/senator’s immigration liaison should be able to get you current status. They have direct line to USCIS. 

Don't let up. I've been told the same thing, the key with them is to absolutely not let up. They will hide behind processing times, but just keep pushing. I have an Infopass today and plan to get answers because you're right - seeing people who filed after you get approved, there's absolutely no excuse for it in my books. 

It appears a lot of people are in your position also. Although we have not been waiting quite as long as you (we filed July 2017), nobody is giving us an update either.
 
The frustrating thing is when you see people who filed many months after you getting interview notices which is happening to us right now.
 
I have an Infopass appointment later today which I'm hoping I can get some answers on. Will let you know how it goes. 

One person in the 2016 December filers thread just got his/her interview letter yesterday. Sometimes it just takes a long time, maybe especially these days.

Good lord Atlanta is a black hole isn't it?! In 2013 when I-130s for IR1/CR1 visas were being adjudicated by local offices, Atlanta was the only place not doing a thing.  If your case has been too long don't hesitate to get in contact with the ombudsman and your representatives.  A year without any notification is too long!

I looked at your timeline. We, too, have been waiting for AOS through the Atlanta office. However, we filed early June 2017. Almost a year. Still nothing. I thought that was a long time. A couple of thoughts and questions for you. Since your EAD was approved last April 2017, hasn’t it expired?  My husband’s EAD card is only good for a year and that will end in October.  At that time his drivers license will expire here in Georgia. Do you have that problem as well?  Did your EAD and DL both expire already?  Another question for you has to do with your physical. The physical is only good for a year after you apply for AOS.  So I’m assuming you will need to get a new physical before you can be approved for AOS. Do you know anything about this?  Will you get another physical or did you get a new one already?  I wish you luck in finding out what is taking so long and hope that you get approved soon. Let me know what you think and keep us updated. 

Umm I'd say this calls for drastic action at this point. I contacted my senator and ombudsman for my combo card after 6 months of waiting. Contact them now.

You can make an InfoPass at your local office. If there is no date available keep trying until you find an available slot.
 
 

Mine didn't take that long. But based on my AOS experience, my INFOpass was very helpful. I asked the field officer where is my file and is it still intact. He told me that my physical files were intact and had been sent to the field office. On queue to be assigned. I was told to wait for 3-4months because that is the usual trend. It was atleast comforting knowing where my file is at and that it wasn't lost. 
 
On the contrary my service request was a waste of time. I got an update or "in progress" with no other details. How helpful!
 
Also, have you created an account to check your case online? 
https://myaccount.uscis.dhs.gov/

Did you tried getting an Infopass and see where your physical file is at? 

My wife has been waiting on her EAD/AP approval for 168 days now.  We filed AOS/EAD/AP back in early November, and received NOA1, Biometrics appointment, and NOA2 all before January 2018.  We have since been forced to endure over 5 months of radio silence.
 
Like you, we purchased round trip flights months ago for Australia.  Our flight is currently scheduled for next month and we still don't have AP approval.  We know your pain!  We are currently looking into all options, in addition to just holding out hope that the US Government comes through in the next few weeks.

Yes, it still works perfectly. I never have to put my info in again. 
After you get to your field office scheduling page you turn the auto refresh on and it will keep on refreshing this site (see pic I attached). The detector will notify you once this screen looks different. Also I forgot to tell you that once it detects something and you want to book your appointment, quickly turn the autorefresh off (it's literally one click) otherwise it refreshes while you put in your info. 
 
I used to having to wait for weeks to get an appointment and now I usually get one within 2 days when I use this method. 

Thanks so much for the tip - I set it up properly this morning (with both the mail alerts and the browser one with sound) and hey presto! Just got an appointment on the 14th!
 
If it's helpful information at all to anyone, the appointment popped up around 11.15am EST today (a Saturday). No idea if that's a normal time in general/for this office/etc.

I'm not sure I'm meant to take such drastic action given their 'don't bother us until this amount of time has passed' timelines are extremely long. But I can see other people getting interview dates and getting approved so it's alarming.

I'm really worried and I wondered if anyone had any advice.
 
I filed for AOS in December 2016. I had my biometrics appointment early Feb 2017 and submitted some extra info which I can see they received early March 2017. Since then, no updates.
 
I put in an online case inquiry request which said I would have an answer by April 12. I've still got nothing. I just don't know what to do to find out why I can see a bunch of cases in people's timelines getting interviews and I'm not, and why they're not even responding to my request.
 
I'm freaking out because I have plane tickets to go and see my family. I stupidly thought it would be fine. I applied for AP but given current timelines, I don't think I'll get it in time. I just don't know what to do now.