MD-80 Series (DC-9-80) Undifferentiated or Other Model
Flight Crew Air Transport Pilot (ATP)
Troubleshooting
Aircraft Equipment Problem Critical; Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter Other / Unknown
Flight Crew Landed As Precaution; Flight Crew Overcame Equipment Problem; Flight Crew Returned To Departure Airport
Aircraft
Just after liftoff we experienced an apparent compressor stall as was noted only by a very loud noise. It was so loud that Tower commented that they even heard it. The right wing dropped and we got 'bank angle'. I was applying some left rudder just as we heard 'bank angle' although I don't really remember much yaw at all. It just felt like an engine failure that happens in the sim. The warning stopped after only one 'bank angle'. After I felt the plane was flying correctly; I looked at the engine instruments to confirm engine failure; but everything appeared normal except the right engine EPR was lagging the left side a little bit. And then it was normal again. This was followed (or occurring at the same time) by the gear not retracting. We had loud/unusual noise and vibrations coming from nose gear as well as red gear unsafe light. The number one flight attendant also heard the loud gear noise and vibrations.  As we were trying to figure out what happened; fly the plane and talk to ATC; the gear finally retracted. We [advised ATC] as we thought maybe the nose tire failed and the engine ingested some of the rubber. We did a fly-by the tower. They did not see anything unusual. We came back around and the Captain took the plane to perform a successful overweight landing. We did perform an overweight landing checklist before the landing.
An MD-80 flight crew experienced a compressor stall combined with a gear retraction issue on climbout. The flight then returned to the departure airport.