B777 crew was advised of an irregularity on the LAM4M departure at egkk.

Attributes
ACN	464340
Time
Date	200002
Day	Mon
Local Time Of Day	0601 To 1200
Place
State Reference	FO
Altitude	msl single value : 13000
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : egtt.artcc tracon : egkk.tracon
Operator	common carrier : air carrier
Make Model Name	B777 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	climbout : intermediate altitude
Route In Use	departure : on vectors departure sid : lam 4 m
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : relief pilot
Qualification	pilot : multi engine pilot : commercial pilot : instrument pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 140 flight time total : 11000 flight time type : 220
ASRS Report	464340
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	other anomaly other
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Flight Crew Human Performance ATC Human Performance
Primary Problem	ATC Human Performance

Narrative:

Flight had originated london-gatwick (egkk) international airport for cincinnati (cvg). At the time of the incident I was the relief pilot (rp) and was not in a control seat, but was conducting after takeoff duties in the relief pilot seat. As we flew the LAM4M departure (modified by radar vectors), one of the london control agencies gave us a frequency change. The captain (PNF) changed frequencys as directed, whereupon the controller inquired about our position. The captain stated that we were on the LAM4M from lgw. The controller issued a different frequency. The captain made the frequency change, as instructed, and the departure was continued. I cannot remember our assigned altitude during this frequency (sector) mismatch, but I believe the assigned altitude was FL130. Most puzzling was the way that we were informed of this frequency change 'mismatch.' as a crew we actually thought very little or nothing of the situation, until london control mentioned that there had been an irregularity on our departure and we were to contact one of their supervisors by telephone.

Original NASA ASRS Text

Title: B777 CREW WAS ADVISED OF AN IRREGULARITY ON THE LAM4M DEP AT EGKK.

Narrative: FLT HAD ORIGINATED LONDON-GATWICK (EGKK) INTL ARPT FOR CINCINNATI (CVG). AT THE TIME OF THE INCIDENT I WAS THE RELIEF PLT (RP) AND WAS NOT IN A CTL SEAT, BUT WAS CONDUCTING AFTER TKOF DUTIES IN THE RELIEF PLT SEAT. AS WE FLEW THE LAM4M DEP (MODIFIED BY RADAR VECTORS), ONE OF THE LONDON CTL AGENCIES GAVE US A FREQ CHANGE. THE CAPT (PNF) CHANGED FREQS AS DIRECTED, WHEREUPON THE CTLR INQUIRED ABOUT OUR POS. THE CAPT STATED THAT WE WERE ON THE LAM4M FROM LGW. THE CTLR ISSUED A DIFFERENT FREQ. THE CAPT MADE THE FREQ CHANGE, AS INSTRUCTED, AND THE DEP WAS CONTINUED. I CANNOT REMEMBER OUR ASSIGNED ALT DURING THIS FREQ (SECTOR) MISMATCH, BUT I BELIEVE THE ASSIGNED ALT WAS FL130. MOST PUZZLING WAS THE WAY THAT WE WERE INFORMED OF THIS FREQ CHANGE 'MISMATCH.' AS A CREW WE ACTUALLY THOUGHT VERY LITTLE OR NOTHING OF THE SIT, UNTIL LONDON CTL MENTIONED THAT THERE HAD BEEN AN IRREGULARITY ON OUR DEP AND WE WERE TO CONTACT ONE OF THEIR SUPVRS BY TELEPHONE.

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.