B737-700 pilot crew reported an in flight engine shutdown due to a loss of oil quantity.
Synopsis
B737-700 pilot crew reported an in flight engine shutdown due to a loss of oil quantity.
Narrative
At FL 410; between ZZZ1 and ZZZ2; the #1 Engine Oil Quantity indicated 17% with white secondary Engine Exceedance Indicator box flashing. Oil temperature and pressure indicated normal and matched #2 Engine. Initiated a descent to FL310 and since no checklist was applicable; considered diversion to ZZZ; due to possible engine seizure; and with better weather and maintenance. Notified Dispatch and Maintenance via ACARS. Further descent to FL 240; Oil quantity was down to 12%; so initiated a divert to ZZZ; notified Dispatch; the Flight Attendants (F/A's); ran the Diversion Checklist; and [requested priority handling] with ATC. Reviewed the Engine Failure and One Engine Inoperative Checklists; ran the performance data numbers for Non-normal One Engine Landing; and decided to start the APU. Briefed the approach to XXR and considered options if the engine failed at different points prior to landing. Approximately 15;000 ft; the oil quantity showed 0%; with normal oil temperature and pressure. Approaching 20NM from ZZZ; at 5000 ft above ZZZ3; the #1 Engine Oil Pressure started fluctuating below 15 and numbers turned yellow and red; the engine exceedance indicator box flashed red; so performed a shutdown of #1 Engine and placed the #1 bus on the APU generator. Configured for landing; reviewed the #1 Engine Inoperative Landing Checklist; but was rushed with time remaining to land. Considered executing a go-around; but felt we had covered everything; so decided to land. Ran the Before Landing Checklist with the performance data numbers for #1 Engine inoperative. Uneventful landing on XXR; taxied clear at 1; was checked and cleared by Fire Rescue; then taxied to Gate X. Forgot to run the Brakes Cooling Module as directed by the Non-normal Landing Page. Spoke with ZZZ Maintenance and made a write-up in the aircraft logbook. Cause: Low oil quantity #1 Engine resulting in engine failure and divert to ZZZ.Suggestion: We should have remembered to run the brakes cooling after landing by writing it down after reviewing the performance data.
Second reporter narrative
At FL410; between ZZZ1 and ZZZ2; the #1 Engine Oil Quantity indicated 17% with white engine warning box flashing. Oil temperature and pressure indicated normal and matched #2 Engine. Initiated a descent to FL310 and since no checklist was applicable; considered diversion to ZZZ due to possible engine seizure; and with better weather and Maintenance. Notified Dispatch and Maintenance via ACARS. Further descent to FL240; oil quantity was down to 12%; so initiated a divert to ZZZ; notified Dispatch; the Flight Attendants (F/A's); ran the Diversion Checklist; and [requested priority handling] with ATC. Reviewed the Engine Failure and One Engine Inoperative Checklists; ran the performance data numbers for Non-normal One Engine Landing; and decided to start the APU. Briefed the approach to XXR and considered options if the engine failed prior to landing. Approximately 15;000 ft; the oil quantity showed 0%; with normal oil temperature and pressure. Approaching 20NM from ZZZ; at 5;000 ft. above ZZZ3; the #1 Engine oil pressure started fluctuating below 15 and numbers turned red; the engine indicators box flashed red; so performed a shutdown of #1 Engine and placed the bus on the APU generator. Configured for landing; reviewed the One Engine Inoperative Landing Checklist; and ran the Before Landing Checklist with the performance data numbers for one engine inoperative. Uneventful landing on XXR; taxied clear at 1; was checked and cleared by Fire Rescue; then taxied to Gate X.Cause: Loss of oil quantity then oil pressure on the #1 Engine/after pressure loss we shutdown engine.Suggestion: Upon further review I did not guard the good engine for shutdown. Rushed performing the Engine Failure and One Engine Inoperative Landing Checklists; even though we had reviewed previously and discussed. Could have initiated a go-around to build more time. Did not run brake cooling after landing as directed by SOP.
More incidents for this aircraft family →
Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.