Air carrier medium large transport takeoff from dca after the noise curfew.

Attributes
ACN	193972
Time
Date	199110
Day	Sun
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : dca
State Reference	DC
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	climbout : takeoff
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 210 flight time total : 12000
ASRS Report	193972
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	non adherence other
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

My flight left atl for bwi. Bwi was fogged in so we got instructions to divert to dca to try to make the XB00 takeoff curfew. Dca was VFR and we landed about XA40. After a lot of hard work by the ground crew the aircraft departed the gate at around XA55 to try to make the curfew. The tower helped us out by putting us ahead of a commuter and we received our takeoff clearance at XB00. I verified the legality of taking off right at curfew and tower said they could clear us for takeoff now but no later. We had completed all checklists and weight and balance so we accepted the clearance and took off for syr where they needed the plane badly for the next morning departure. I later came to realize in my notes for dca that takeoffs weren't permitted after XA58. I missed this in my takeoff briefing because trying to make the curfew we were tied up with checklists and other normal procedures including noise abatement procedures for dca. I felt that since the tower cleared us for takeoff and I verified the legality of the takeoff time with the tower we were legal to take off. Apparently that isn't the case.

Original NASA ASRS Text

Title: ACR MLG TKOF FROM DCA AFTER THE NOISE CURFEW.

Narrative: MY FLT LEFT ATL FOR BWI. BWI WAS FOGGED IN SO WE GOT INSTRUCTIONS TO DIVERT TO DCA TO TRY TO MAKE THE XB00 TKOF CURFEW. DCA WAS VFR AND WE LANDED ABOUT XA40. AFTER A LOT OF HARD WORK BY THE GND CREW THE ACFT DEPARTED THE GATE AT AROUND XA55 TO TRY TO MAKE THE CURFEW. THE TWR HELPED US OUT BY PUTTING US AHEAD OF A COMMUTER AND WE RECEIVED OUR TKOF CLRNC AT XB00. I VERIFIED THE LEGALITY OF TAKING OFF RIGHT AT CURFEW AND TWR SAID THEY COULD CLR US FOR TKOF NOW BUT NO LATER. WE HAD COMPLETED ALL CHKLISTS AND WT AND BAL SO WE ACCEPTED THE CLRNC AND TOOK OFF FOR SYR WHERE THEY NEEDED THE PLANE BADLY FOR THE NEXT MORNING DEP. I LATER CAME TO REALIZE IN MY NOTES FOR DCA THAT TKOFS WEREN'T PERMITTED AFTER XA58. I MISSED THIS IN MY TKOF BRIEFING BECAUSE TRYING TO MAKE THE CURFEW WE WERE TIED UP WITH CHKLISTS AND OTHER NORMAL PROCS INCLUDING NOISE ABATEMENT PROCS FOR DCA. I FELT THAT SINCE THE TWR CLRED US FOR TKOF AND I VERIFIED THE LEGALITY OF THE TKOF TIME WITH THE TWR WE WERE LEGAL TO TAKE OFF. APPARENTLY THAT ISN'T THE CASE.

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.