B767-300 has fuel gauge failure during ETOPS flight. Elects to divert to another airport.

Attributes
ACN	686274
Time
Date	200602
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	msl single value : 32000
Environment
Flight Conditions	VMC
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	observation : observer
ASRS Report	686274
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
ASRS Report	686397
Events
Anomaly	aircraft equipment problem : less severe
Independent Detector	aircraft equipment other aircraft equipment : fuel indicator other flight crewa other flight crewb other other : 3
Resolutory Action	flight crew : diverted to another airport flight crew : declared emergency
Consequence	other
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance
Primary Problem	Aircraft

Narrative:

2 hours into flight; left main tank fuel gauge and statelier quantity gauge became intermittent and eventually quit displaying completely. Called dispatch and maintenance technician both agreed ETOPS overwater flight to ZZZ2 not good idea. ZZZ chosen due to spare aircraft availability. No problems on arrival but did not have an overweight landing gross weight 350000 pounds. ZZZ personnel did great job of getting passenger and luggage moved to new aircraft.

Original NASA ASRS Text

Title: B767-300 HAS FUEL GAUGE FAILURE DURING ETOPS FLT. ELECTS TO DIVERT TO ANOTHER ARPT.

Narrative: 2 HRS INTO FLT; L MAIN TANK FUEL GAUGE AND STATELIER QUANTITY GAUGE BECAME INTERMITTENT AND EVENTUALLY QUIT DISPLAYING COMPLETELY. CALLED DISPATCH AND MAINT TECHNICIAN BOTH AGREED ETOPS OVERWATER FLT TO ZZZ2 NOT GOOD IDEA. ZZZ CHOSEN DUE TO SPARE ACFT AVAILABILITY. NO PROBS ON ARR BUT DID NOT HAVE AN OVERWT LNDG GROSS WT 350000 LBS. ZZZ PERSONNEL DID GREAT JOB OF GETTING PAX AND LUGGAGE MOVED TO NEW ACFT.

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.