B767 crew had hydraulic failure.

Attributes
ACN	447531
Time
Date	199908
Day	Fri
Place
Locale Reference	atc facility : egtt.artcc
State Reference	FO
Altitude	msl single value : 31000
Aircraft 1
Controlling Facilities	artcc : egtt.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	cruise : level
Route In Use	enroute airway : ns.airway
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	447531
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	other flight crewa other flight crewb other other : 3
Resolutory Action	controller : separated traffic
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

Left hydraulic quantity loss/diversion to lhr. Shortly after leveling at FL310 over the english channel, we noted left hydraulic quantity message. We followed checklist procedure and diverted to lhr. We declared an emergency, requested crash fire rescue equipment, and made an overweight landing on runway 27R lhr.

Original NASA ASRS Text

Title: B767 CREW HAD HYD FAILURE.

Narrative: L HYD QUANTITY LOSS/DIVERSION TO LHR. SHORTLY AFTER LEVELING AT FL310 OVER THE ENGLISH CHANNEL, WE NOTED L HYD QUANTITY MESSAGE. WE FOLLOWED CHKLIST PROC AND DIVERTED TO LHR. WE DECLARED AN EMER, REQUESTED CFR, AND MADE AN OVERWT LNDG ON RWY 27R LHR.

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.