Air carrier flies without IFR clearance. Clearance expired before takeoff.

Attributes
ACN	314804
Time
Date	199508
Day	Wed
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : lga
State Reference	NY
Altitude	msl bound lower : 5000 msl bound upper : 5000
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : lga
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	climbout : takeoff climbout : intermediate altitude climbout : initial
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : cfi pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 460 flight time total : 20000 flight time type : 2565
ASRS Report	314804
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	non adherence : clearance other anomaly other
Independent Detector	other flight crewa
Resolutory Action	controller : issued new clearance flight crew : returned to intended course or assigned course flight crew : became reoriented
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Flight departed lga en route to pbi. On climb out from lga ny departure control advised us that our flight plan had timed out and had dropped out of the computer. The controller asked us for the routing of the original clearance and then cleared us on that routing to pbi. Contributing factors were a late arrival inbound to lga. This was followed by a mechanical problem which further delayed our outbound flight. Some passenger were deplaning to find a quicker way to get to pbi. During this whole process the clearance was received by pre departure clearance with a valid time till XX15Z. We taxied for takeoff at XX00Z and took off at XX24Z. In being busy with the many things that were going on at the time we overlooked the XX15Z time.

Original NASA ASRS Text

Title: ACR FLIES WITHOUT IFR CLRNC. CLRNC EXPIRED BEFORE TKOF.

Narrative: FLT DEPARTED LGA ENRTE TO PBI. ON CLBOUT FROM LGA NY DEP CTL ADVISED US THAT OUR FLT PLAN HAD TIMED OUT AND HAD DROPPED OUT OF THE COMPUTER. THE CTLR ASKED US FOR THE ROUTING OF THE ORIGINAL CLRNC AND THEN CLRED US ON THAT ROUTING TO PBI. CONTRIBUTING FACTORS WERE A LATE ARR INBOUND TO LGA. THIS WAS FOLLOWED BY A MECHANICAL PROB WHICH FURTHER DELAYED OUR OUTBOUND FLT. SOME PAX WERE DEPLANING TO FIND A QUICKER WAY TO GET TO PBI. DURING THIS WHOLE PROCESS THE CLRNC WAS RECEIVED BY PDC WITH A VALID TIME TILL XX15Z. WE TAXIED FOR TKOF AT XX00Z AND TOOK OFF AT XX24Z. IN BEING BUSY WITH THE MANY THINGS THAT WERE GOING ON AT THE TIME WE OVERLOOKED THE XX15Z TIME.

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.