B737 pilot reported a cockpit window heat failure; which resulted an return to the departure airport...

Attributes
ACN	1588016
Time
Date	201810
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZZ.ARTCC
State Reference	FO
Aircraft 1
Make Model Name	B737-800
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Flight Plan	IFR
Component
Aircraft Component	Cockpit Window
Person 1
Function	First Officer Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Commercial Flight Crew Instrument Flight Crew Multiengine
Events
Anomaly	Aircraft Equipment Problem Less Severe

Narrative:

Flight enroute [from] ZZZZ; reached cruise flight at FL340. Windscreen L-1 heating element began to glow brightly shortly after level-off and the window cracked. [Priority was requested] with [ATC] on HF radio and a return to ZZZZ was initiated. QRH procure for 'window damage-forward' was referenced. Flight landed at ZZZZ uneventfully.

Original NASA ASRS Text

Title: B737 pilot reported a cockpit window heat failure; which resulted an return to the departure airport.

Narrative: Flight enroute [from] ZZZZ; reached cruise flight at FL340. Windscreen L-1 heating element began to glow brightly shortly after level-off and the window cracked. [Priority was requested] with [ATC] on HF radio and a return to ZZZZ was initiated. QRH procure for 'Window damage-Forward' was referenced. Flight landed at ZZZZ uneventfully.

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.