B767-300 has a fuel cap leaking during climb. Declares emergency and returns for landing.

Attributes
ACN	695330
Time
Date	200604
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	msl single value : 33000
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zzz.artcc
Operator	common carrier : air carrier
Make Model Name	B767-300 and 300 ER
Operating Under FAR Part	Part 121
Flight Phase	cruise : level
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
ASRS Report	695330
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
ASRS Report	695480
Events
Anomaly	aircraft equipment problem : less severe
Independent Detector	aircraft equipment other aircraft equipment : fuel gauge other flight crewa other flight crewb
Resolutory Action	flight crew : diverted to another airport flight crew : landed as precaution flight crew : declared emergency
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance
Primary Problem	Aircraft

Narrative:

At cruise passenger reported fluid leaking from top left wing at fuel cap. Report was confirmed by first officer (B). Cockpit fuel quantity indicated 400 pounds. Down on left side. Declared an emergency and returned to ZZZ. Made overweight landing and requested crash fire rescue equipment. Subsequent to crash fire rescue equipment visual inspection taxied to gate.

Original NASA ASRS Text

Title: B767-300 HAS A FUEL CAP LEAKING DURING CLB. DECLARES EMER AND RETURNS FOR LNDG.

Narrative: AT CRUISE PAX RPTED FLUID LEAKING FROM TOP L WING AT FUEL CAP. RPT WAS CONFIRMED BY FO (B). COCKPIT FUEL QUANTITY INDICATED 400 LBS. DOWN ON L SIDE. DECLARED AN EMER AND RETURNED TO ZZZ. MADE OVERWT LNDG AND REQUESTED CFR. SUBSEQUENT TO CFR VISUAL INSPECTION TAXIED TO GATE.

Data retrieved from NASA's ASRS site as of January 2009 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.