B737 first officer engine failure in flight resulting in a divert and uneventful landing.

Narrative:

Working as a resting pilot under frms rules for the [flight] departing ZZZ we heard a few loud pops from compressor stall of the number 1 engine and then obvious loss of power. Looked out the window to see the first stage fan windmilling and no signs of fire or other damage. Sat tight for a bit to allow everyone to stabilize and then shared our thoughts with the forward cabin crew but also stating that any final word would have to come from the flying captain and suggesting they just wait for him to call them which he did in a normal timely fashion given the situation. After confirming things in the cockpit were as we expected; engine shut down; no fire; preparing for return; I went to the back galley to make sure the aft cabin crew was fully informed and could expect a normal landing with fire trucks to follow with no need to prepare the cabin further yet be ready for evacuation if signal is given. We proceeded to land normally and have the afr (airport fire rescue) crews surround the aircraft. After taking the brake temps the left one was found to be hot; around 800 degrees F due to no thrust reverse on that engine and the braking system regulating more pressure to that side. The right brake was normal temp or about 300 F. The guys put a brake fan on it to speed up cooling and we then taxied to the gate with them in tow for an uneventful conclusion. Great job to both the flight and cabin crew in handling a startling event calmly and methodically.

Original NASA ASRS Text

Title: B737 First Officer engine failure in flight resulting in a divert and uneventful landing.

Narrative: Working as a resting pilot under FRMS rules for the [flight] departing ZZZ we heard a few loud pops from compressor stall of the Number 1 engine and then obvious loss of power. Looked out the window to see the first stage fan windmilling and no signs of fire or other damage. Sat tight for a bit to allow everyone to stabilize and then shared our thoughts with the forward cabin crew but also stating that any final word would have to come from the flying Captain and suggesting they just wait for him to call them which he did in a normal timely fashion given the situation. After confirming things in the cockpit were as we expected; engine shut down; no fire; preparing for return; I went to the back galley to make sure the aft cabin crew was fully informed and could expect a normal landing with fire trucks to follow with no need to prepare the cabin further yet be ready for evacuation if signal is given. We proceeded to land normally and have the AFR (Airport Fire Rescue) crews surround the aircraft. After taking the brake temps the left one was found to be hot; around 800 degrees F due to no thrust reverse on that engine and the braking system regulating more pressure to that side. The right brake was normal temp or about 300 F. The guys put a brake fan on it to speed up cooling and we then taxied to the gate with them in tow for an uneventful conclusion. Great job to both the flight and cabin crew in handling a startling event calmly and methodically.

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.

Attributes
ACN	1649050
Time
Date	201905
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Climb
Flight Plan	IFR
Person 1
Function	First Officer Pilot Not Flying
Qualification	Flight Crew Instrument Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 126
Events
Anomaly	Aircraft Equipment Problem Critical