B737-700 first officer reported that distraction and time pressure caused the crew to miss a checkli...

Attributes
ACN	1702279
Time
Date	201911
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	Mixed
Light	Night
Aircraft 1
Make Model Name	B737-700
Operating Under FAR Part	Part 121
Flight Phase	Cruise Parked
Flight Plan	IFR
Component
Aircraft Component	Fuel Crossfeed
Person 1
Function	First Officer Pilot Flying
Qualification	Flight Crew Commercial Flight Crew Instrument Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 468 Flight Crew Type 3000
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural MEL Deviation - Procedural Clearance Deviation - Procedural Weight And Balance Inflight Event / Encounter Fuel Issue

Narrative:

Heavy traffic on way to airport caused van driver to drop us off at airport approximately 20 minutes late. We rushed to get to the gate and push as close to on time as possible. I accomplished flight duties while hearing from captain that we had an MEL 28-X-xx. Right center tank fuel boost pump inoperative. I read the dispatch report as did the captain. After push; and before takeoff; failed to recognize crossfeed valve in closed position (supposed to be open). Took off and at climbout captain recognized that we had over 1000 pound imbalance from main tanks. We leveled off; referenced the QRH and accomplished applicable checklist. We shut off left center tank boost pump. Balanced mains and turned left center tank boost pump back on. Fuel initially fed from center tank but stopped feeding and started to feed from right main tank causing another slight imbalance. We failed to open up the crossfeed per the MEL which caused this to happen. At the time I was coordinating and programming for a diversion. Landed in ZZZ as a divert. Captain recognized the error after talking to maintenance via telephone call.

Original NASA ASRS Text

Title: B737-700 First Officer reported that distraction and time pressure caused the crew to miss a checklist item that resulted in a fuel imbalance and a diversion.

Narrative: Heavy traffic on way to airport caused Van Driver to drop us off at airport approximately 20 minutes late. We rushed to get to the gate and push as close to on time as possible. I accomplished flight duties while hearing from Captain that we had an MEL 28-X-XX. Right Center Tank fuel boost pump inoperative. I read the dispatch report as did the Captain. After push; and before takeoff; failed to recognize crossfeed valve in closed position (supposed to be open). Took off and at climbout Captain recognized that we had over 1000 pound imbalance from main tanks. We leveled off; referenced the QRH and accomplished applicable checklist. We shut off left center tank boost pump. Balanced mains and turned left center tank boost pump back on. Fuel initially fed from center tank but stopped feeding and started to feed from right main tank causing another slight imbalance. We failed to open up the crossfeed per the MEL which caused this to happen. At the time I was coordinating and programming for a diversion. Landed in ZZZ as a divert. Captain recognized the error after talking to Maintenance via telephone call.

Data retrieved from NASA's ASRS site 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.

B737-700 first officer reported that distraction and time pressure caused the crew to miss a checklist item that resulted in a fuel imbalance and a diversion.