Date: 202111
Local time of day: 1801-2400
Location: ZZZ.Airport, US
Light: Night
Aircraft: B737-700
Operator: Air Carrier
Operating under: Part 121
Flight plan: IFR
Mission: Passenger
Flight phase: Takeoff / Launch
Airspace: Class B ZZZ
ATC / advisory: Tower ZZZ
Aircraft component: Powerplant Lubrication System
Component problem: Malfunctioning
Reporter organization: Air Carrier
Reporter function: Pilot Flying; First Officer
Reporter qualification: Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Human factors: Troubleshooting
Second reporter function: Captain; Pilot Not Flying
Anomaly: Aircraft Equipment Problem Critical; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Weight And Balance
Detector: Automation Aircraft Other Automation; Person Flight Crew
When detected: In-flight
Result: Air Traffic Control Provided Assistance; Flight Crew Inflight Shutdown; Flight Crew Landed in Emergency Condition; Flight Crew Requested ATC Assistance / Clarification; Flight Crew Returned To Departure Airport; General Flight Cancelled / Delayed; General Maintenance Action
Contributing factors: Aircraft; Human Factors
Primary problem: Aircraft

Narrative: Left engine oil pressure loss to 0 PSI on takeoff roll between 80 knots and V1. Continued takeoff and climbed to 4;000 feet MSL. Coordinated with Approach Control for holding north of ZZZ. Worked through Engine Oil Pressure Light QRH Checklist. Checklist led to shutdown of left engine. By the time we shutdown the left engine; we had zero oil quantity and some initial indications of engine vibration. Shut down engine. Coordinated with Approach. Notified Dispatch via ACARS and briefly spoke to them Dispatch. Initial landing runway at ZZZ was XXR; but that had a tailwind so we coordinated with Approach to land on XYL. Ran landing data for single engine flaps 15. Plenty of stopping margin with auto brake 3. Ran hot brakes; which showed us good to go to the gate. Got vectors to ILS XYL. Landed uneventfully. Crash and Rescue checked the brakes and aircraft and said we were good; so we went to the gate. At the gate Maintenance determined that the oil temperature sensor came out of the engine which resulted in losing all oil.


Second narrative: Started takeoff on [Runway] XXR in ZZZ. Above 80 knots and before V1 saw number 2 oil pressure light come on. Continued the takeoff and leveled off at 4;000 feet with Approach Control. Ran Low Oil Pressure Checklist on number 2 engine. Requested priority handling and reported souls and fuel onboard. Felt number 2 engine vibration and followed Engine Shutdown Checklist. Received delayed radar vectors from Approach Control. Completed Engine Fire or Engine Severe Damage or Separation Checklist and One Engine Inoperative Landing Checklist to Deferred Items.Talked to F/As and told them to secure the cabin. Informed Passengers on situation and sent Dispatch a message on ACARS. Ran weight and balance landing data for [Runway] XXR and XYL. Runway XXR was active; but had a tailwind. We requested XYL; which gave us better landing data. Completed brake cooling data before landing. Finished checklists and landed without incident on [Runway] XYL. Cleared the runway and positioned the aircraft so the fire trucks could inspect the aircraft. No damage noted. Ran brake cooling data again. Data was good for us to taxi and park at the Gate XX. Talked to Dispatch; Chief Pilot and Maintenance. Had two logbook entries. One for the number two engine and the other for an overweight landing (131.5).


Synopsis: B737-700 flight crew reported loss of oil pressure on #2 engine during takeoff and performed and in flight shut down. Flight crew requested priority handing and mad an air turn back; making a precautionary landing.