Air carrier flight crew reported landing without a clearance.

Attributes
ACN	1754357
Time
Date	202007
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Aircraft 1
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	Landing
Flight Plan	IFR
Person 1
Function	Pilot Not Flying First Officer
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument Flight Crew Multiengine
Person 2
Function	Captain Pilot Flying
Qualification	Flight Crew Instrument Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	ATC Issue All Types Deviation - Procedural Landing Without Clearance

Narrative:

On right downwind to land on xxl at ZZZ; tower offered a tight visual approach to avoid traffic. We accepted the approach and the captain immediately turned off the autopilot and hand flew the visual approach; intercepting final just inside the final approach fix. We accomplished all checklists and configured the aircraft for a stable approach. After landing; we noticed that the landing light was turned off and realized we were still on approach frequency. We exited the runway; contacted ground and apologized for the mistake. Looking back at the event; I don't believe we were ever instructed to contact the tower. Failure to ensure we were on the correct frequency. I would develop a personal habit of checking the nose taxi light for verification of landing clearance prior to making the 'stable and cleared to land' call out.

Original NASA ASRS Text

Title: Air carrier flight crew reported landing without a clearance.

Narrative: On right downwind to land on XXL at ZZZ; Tower offered a tight visual approach to avoid traffic. We accepted the approach and the Captain immediately turned off the autopilot and hand flew the visual approach; intercepting final just inside the final approach fix. We accomplished all checklists and configured the aircraft for a stable approach. After landing; we noticed that the landing light was turned off and realized we were still on approach frequency. We exited the runway; contacted Ground and apologized for the mistake. Looking back at the event; I don't believe we were ever instructed to contact the Tower. Failure to ensure we were on the correct frequency. I would develop a personal habit of checking the nose taxi light for verification of landing clearance prior to making the 'stable and cleared to land' call out.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.