Narrative:

Aircraft was picked up after 'heavy check' and was being flown to its usual and customary base. 'Rt wing slide' EICAS message was annunciated in flight. Per the QRH; the captain instructed the mechanic (who was in the cockpit jump-seat) to head back to the cabin and take a look for visual or aural signs of deployment. He (the mechanic); did not observe any signs of deployment; noises; and / or vibration. The 39 min flight was continued to it's destination. Upon extension of final landing flaps; a noise was heard as well as accompanying vibration. Traffic holding short of the runway as well as the control tower advised us that something was hanging off the airplane and what appeared to be 'smoke' was emanating from the lower rear fuselage. The fire trucks were deployed. The fire marshal determined that the airplane was not on fire (it was in fact the agent in the raft; and that we were safe to taxi) ... We were followed to our usual and customary parking position by the trucks as a precaution. Crew should have been more proactive in declaring an emergency since we did not know the extent of the 'smoke' which was observed by personnel on the ground.

Google
 

Original NASA ASRS Text

Title: B767 flight crew experiences a right wing slide caution message during initial climb on a ferry flight after an A check by Maintenance. The QRH is consulted and the right wing is examined visually with no deployment noted. During approach; as the flaps are extended from 20 to 30; a noise is heard and vibration is felt. The Tower reports something trailing from the aircraft and possible smoke coming from the lower rear fuselage. A normal landing ensues.

Narrative: Aircraft was picked up after 'heavy check' and was being flown to its usual and customary base. 'Rt wing slide' EICAS message was annunciated in flight. Per the QRH; the Captain instructed the mechanic (who was in the cockpit jump-seat) to head back to the cabin and take a look for visual or aural signs of deployment. He (the mechanic); did not observe any signs of deployment; noises; and / or vibration. The 39 min flight was continued to it's destination. Upon extension of final landing flaps; a noise was heard as well as accompanying vibration. Traffic holding short of the runway as well as the control tower advised us that something was hanging off the airplane and what appeared to be 'smoke' was emanating from the lower rear fuselage. The fire trucks were deployed. The fire marshal determined that the airplane was not on fire (it was in fact the agent in the raft; and that we were safe to taxi) ... we were followed to our usual and customary parking position by the trucks as a precaution. Crew should have been more proactive in declaring an emergency since we did not know the extent of the 'smoke' which was observed by personnel on the ground.

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.