B777-200 crew diverted to the nearest suitable airport after receiving a fuel filter bypass EICAS message. This was the fourth repeat of the discrepancy.

Home

Browse by month

Random

Latest

About

Contact

Attributes
ACN	550394
Time
Date	200206
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : sfo.airport
State Reference	CA
Altitude	msl single value : 36000
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zoa.artcc tower : zzz.tower
Operator	common carrier : air carrier
Make Model Name	B777 Undifferentiated or Other Model
Navigation In Use	other other
Route In Use	enroute : pacific
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : multi engine pilot : commercial
ASRS Report	550394
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : critical non adherence : published procedure non adherence : far non adherence : company policies
Independent Detector	aircraft equipment other aircraft equipment : eicas fuel filter by pass other flight crewa other flight crewb
Resolutory Action	flight crew : landed as precaution flight crew : diverted to another airport other
Consequence	other other
Factors
Maintenance	contributing factor : schedule pressure performance deficiency : non compliance with legal requirements performance deficiency : testing performance deficiency : repair performance deficiency : inspection performance deficiency : fault isolation
Supplementary
Problem Areas	Maintenance Human Performance Company Aircraft
Primary Problem	Aircraft

Narrative:

Left engine fuel filter EICAS message resulted in our divert to sea 1 hour 20 mins en route. Problem indicated possible imminent fuel bypass/flameout. Repeat of previous 3 discrepancies problem was supposedly fixed when it happened to us. Mechanic stated it appeared to have been a blocked filter when he checked things out at the gate in sea.

Original NASA ASRS Text

Title: B777-200 CREW DIVERTED TO THE NEAREST SUITABLE ARPT AFTER RECEIVING A FUEL FILTER BYPASS EICAS MESSAGE. THIS WAS THE FOURTH REPEAT OF THE DISCREPANCY.

Narrative: L ENG FUEL FILTER EICAS MESSAGE RESULTED IN OUR DIVERT TO SEA 1 HR 20 MINS ENRTE. PROB INDICATED POSSIBLE IMMINENT FUEL BYPASS/FLAMEOUT. REPEAT OF PREVIOUS 3 DISCREPANCIES PROB WAS SUPPOSEDLY FIXED WHEN IT HAPPENED TO US. MECH STATED IT APPEARED TO HAVE BEEN A BLOCKED FILTER WHEN HE CHKED THINGS OUT AT THE GATE IN SEA.

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.