<< >> NASA ASRS Report 1064733, January 2013

B737-800 fuel 'filter bypass' annunciator light illuminated during climb out; the flight crew ran the checklist; declared an emergency and returned to their departure airport.

Attributes
ACN	1064733
Time
Date	201301
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.ARTCC
State Reference	US
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	B737-800
Operating Under FAR Part	Part 121
Flight Phase	Climb
Flight Plan	IFR
Component
Aircraft Component	Engine Fuel Filter
Person 1
Function	Pilot Not Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Person 2
Function	First Officer Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

During climb out and passing FL200 the number 1 engine fuel 'filter bypass' light illuminated. I ran the checklist for the problem; and the first officer coordinated a return to land. We declared an emergency due to the possibility of fuel contamination. Landing was uneventful.

Related reports:

• While performing a 'before landing' checklist on a B737-800;...

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Original NASA ASRS Text

Title: B737-800 fuel 'Filter Bypass' annunciator light illuminated during climb out; the flight crew ran the checklist; declared an emergency and returned to their departure airport.

Narrative: During climb out and passing FL200 the Number 1 Engine fuel 'filter bypass' light illuminated. I ran the checklist for the problem; and the First Officer coordinated a return to land. We declared an emergency due to the possibility of fuel contamination. Landing was uneventful.

Data retrieved from NASA's ASRS site as of July 2013 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.