B767-200 flight crew reported that during cruise; they received a leading edge slat asymmetry messag...

Attributes
ACN	1628587
Time
Date	201903
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.ARTCC
State Reference	US
Aircraft 1
Make Model Name	B767-200
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Component
Aircraft Component	Flap/Slat Indication
Person 1
Function	First Officer Relief Pilot
Qualification	Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument
Person 2
Function	Pilot Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument Flight Crew Multiengine
Events
Anomaly	Aircraft Equipment Problem Critical Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy

Narrative:

The flight was en-route to ZZZZ from ZZZ. The flight was a crew of 4 pilots; and I was to be providing relief in the second half of the flight. I was awakened from rest to be brought back to the cockpit within the first hour or two to find the le slat assym message displayed on the EICAS and the working crew already taking the necessary steps. From this point; multiple calls placed to company/dispatch were made to decide the next course of action; and a company/crew decision was made to divert to a known maintenance facility: ZZZ. The applicable weather; notams; and fuel requirements were acquired from dispatch for ZZZ and ZZZ1. Checklist procedures were followed and steps were taken to ensure the flight occurred within aircraft limitations. We ultimately made a safe; uneventful landing at ZZZ. Le flap assym indication over zzzzz prompted to run checklist to solve the problem. Since the issue would not go away; a coordinated decision between flight crew and company was made to divert to ZZZ.

Original NASA ASRS Text

Title: B767-200 flight crew reported that during cruise; they received a Leading Edge Slat Asymmetry message. Flight crew diverted and landed without incident.

Narrative: The flight was en-route to ZZZZ from ZZZ. The flight was a crew of 4 pilots; and I was to be providing relief in the second half of the flight. I was awakened from rest to be brought back to the cockpit within the first hour or two to find the LE SLAT ASSYM message displayed on the EICAS and the working crew already taking the necessary steps. From this point; multiple calls placed to Company/Dispatch were made to decide the next course of action; and a Company/Crew decision was made to divert to a known maintenance facility: ZZZ. The applicable weather; NOTAMs; and fuel requirements were acquired from Dispatch for ZZZ and ZZZ1. Checklist procedures were followed and steps were taken to ensure the flight occurred within aircraft limitations. We ultimately made a safe; uneventful landing at ZZZ. LE FLAP ASSYM indication over ZZZZZ prompted to run checklist to solve the problem. Since the issue would not go away; a coordinated decision between flight crew and Company was made to divert to ZZZ.

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.

B767-200 flight crew reported that during cruise; they received a leading edge slat asymmetry message. Flight crew diverted and landed without incident.