Narrative:

Descending into ZZZ on zzzzz STAR at FL280; first officer pointed out appearance of engine compact indicators and boxed low oil quantity indications on center du. I asked fight attendants to look at number 1 engine for indications of streaming fluid. First officer with concurrence pulled back number 1 engine to idle. Oil pressure started to fall and was soon highlighted. Oil temperature on number 1 was slowly rising to match number 2 which had a much higher power setting. QRH consulted for engine low oil pressure; recommending engine shutdown. Flight attendants reported no visual streaming. I assumed pilot flying duties and engine was shut down in accordance with QRH procedures directed by first officer. First officer sent message to dispatch informing of situation and declared an emergency with ATC (TRACON).I informed flight attendants of engine shutdown and expectations of normal landing; rollout; inspection by ZZZ fire department; and then taxi to gate. I made similar PA to passengers. The flight attendants calmly secured the cabin for arrival. First officer got 15 flap numbers from [weight and balance system] and directed the one engine inoperative landing checklist in the QRH covering all contingencies. Flight touched down uneventfully on runway 30 in ZZZ. I intentionally rolled past [first taxiway] high speed to [second taxiway] to meet awaiting fire truck and not shut down arrivals into ZZZ. First officer retrieved the brake cooling requirements and determined the safety of inspection by ZZZ fire and ability to taxi to gate. Fire inspection observed small amount of oil smoke from oil in the aft engine area and recommended they follow us to gate which they did.

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Original NASA ASRS Text

Title: B737 flight crew reported the loss of the Number 1 engine oil pressure during descent; which resulted in a an inflight engine shutdown.

Narrative: Descending into ZZZ on ZZZZZ STAR at FL280; First Officer pointed out appearance of engine compact indicators and boxed low oil quantity indications on center DU. I asked fight attendants to look at Number 1 engine for indications of streaming fluid. First Officer with concurrence pulled back Number 1 engine to idle. Oil pressure started to fall and was soon highlighted. Oil temperature on Number 1 was slowly rising to match Number 2 which had a much higher power setting. QRH consulted for engine low oil pressure; recommending engine shutdown. Flight attendants reported no visual streaming. I assumed Pilot Flying duties and engine was shut down in accordance with QRH procedures directed by First Officer. First Officer sent message to Dispatch informing of situation and declared an emergency with ATC (TRACON).I informed flight attendants of engine shutdown and expectations of normal landing; rollout; inspection by ZZZ Fire Department; and then taxi to gate. I made similar PA to Passengers. The flight attendants calmly secured the cabin for arrival. First Officer got 15 flap numbers from [weight and balance system] and directed the One Engine Inoperative Landing Checklist in the QRH covering all contingencies. Flight touched down uneventfully on Runway 30 in ZZZ. I intentionally rolled past [first taxiway] high speed to [second taxiway] to meet awaiting fire truck and not shut down arrivals into ZZZ. First Officer retrieved the brake cooling requirements and determined the Safety of inspection by ZZZ Fire and ability to taxi to gate. Fire inspection observed small amount of oil smoke from oil in the aft engine area and recommended they follow us to gate which they did.

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.