B767 crew had an engine duct overheat warning in ZOA class a.

Attributes
ACN	569062
Time
Date	200212
Day	Tue
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : zoa.artcc
State Reference	CA
Altitude	msl single value : 20000
Aircraft 1
Controlling Facilities	artcc : zoa.artcc
Operator	common carrier : air carrier
Make Model Name	B767 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	569062
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : published procedure other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : eicas engine duct overheat other flight crewa other flight crewb
Resolutory Action	flight crew : diverted to another airport flight crew : landed as precaution other
Consequence	other other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

On climb out, we got left engine duct overheat light on about FL200, stopped climb with ATC. Declared emergency and worked the irr checklist and returned to sfo. Landed, taxied to gate. Maintenance found engine anti-ice clamp off. While returning to sfo, tried to get patch to maintenance controller with sfo ramp controller. They were unable to patch us through. Got hold of commercial radio operator for patch to dispatch and told them we were returning to sfo.

Original NASA ASRS Text

Title: B767 CREW HAD AN ENG DUCT OVERHEAT WARNING IN ZOA CLASS A.

Narrative: ON CLBOUT, WE GOT L ENG DUCT OVERHEAT LIGHT ON ABOUT FL200, STOPPED CLB WITH ATC. DECLARED EMER AND WORKED THE IRR CHKLIST AND RETURNED TO SFO. LANDED, TAXIED TO GATE. MAINT FOUND ENG ANTI-ICE CLAMP OFF. WHILE RETURNING TO SFO, TRIED TO GET PATCH TO MAINT CTLR WITH SFO RAMP CTLR. THEY WERE UNABLE TO PATCH US THROUGH. GOT HOLD OF COMMERCIAL RADIO OPERATOR FOR PATCH TO DISPATCH AND TOLD THEM WE WERE RETURNING TO SFO.

Data retrieved from NASA's ASRS site as of July 2007 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.