Narrative:

After the captain shot an autoplt coupled ILS approach to coatesville, PA and missed he called for me to contact center and relay that we were on the missed approach while he stayed on unicom frequency. In the moments thereafter the aircraft deviated from heading and altitude assignment of the published missed approach procedure. In those brief moments the captain had thought that he had transferred aircraft control to me, while I thought he was still flying the aircraft with the autoplt. At this busy moment in the cockpit a gross miscom occurred. In retrospect, we learned we need to positively pass control of the aircraft through the challenge and response technique. Callback conversation with reporter revealed the following information: reporter stated that the aircraft flown during this incident was a BE90. He said that it took a few moments to realize that the autoplt was not engaged since the last that he remembered seeing is the indications of the coupled approach from which the missed approach was being made. He did notice the go around flight director light on and then his attention was diverted to contacting approach control. He further stated that he and the captain learned a good lesson with regard to flight crew communicating with each other. He has not flown the same captain since so cannot say how affective the incident was to the captain's future habits!

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Original NASA ASRS Text

Title: FLC OF AN SMT FAILED TO FOLLOW THE MISSED APCH PROC RESULTING IN NOT ADHERING TO THE PUBLISHED TRACK AND ALT.

Narrative: AFTER THE CAPT SHOT AN AUTOPLT COUPLED ILS APCH TO COATESVILLE, PA AND MISSED HE CALLED FOR ME TO CONTACT CTR AND RELAY THAT WE WERE ON THE MISSED APCH WHILE HE STAYED ON UNICOM FREQ. IN THE MOMENTS THEREAFTER THE ACFT DEVIATED FROM HDG AND ALT ASSIGNMENT OF THE PUBLISHED MISSED APCH PROC. IN THOSE BRIEF MOMENTS THE CAPT HAD THOUGHT THAT HE HAD TRANSFERRED ACFT CTL TO ME, WHILE I THOUGHT HE WAS STILL FLYING THE ACFT WITH THE AUTOPLT. AT THIS BUSY MOMENT IN THE COCKPIT A GROSS MISCOM OCCURRED. IN RETROSPECT, WE LEARNED WE NEED TO POSITIVELY PASS CTL OF THE ACFT THROUGH THE CHALLENGE AND RESPONSE TECHNIQUE. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR STATED THAT THE ACFT FLOWN DURING THIS INCIDENT WAS A BE90. HE SAID THAT IT TOOK A FEW MOMENTS TO REALIZE THAT THE AUTOPLT WAS NOT ENGAGED SINCE THE LAST THAT HE REMEMBERED SEEING IS THE INDICATIONS OF THE COUPLED APCH FROM WHICH THE MISSED APCH WAS BEING MADE. HE DID NOTICE THE GAR FLT DIRECTOR LIGHT ON AND THEN HIS ATTN WAS DIVERTED TO CONTACTING APCH CTL. HE FURTHER STATED THAT HE AND THE CAPT LEARNED A GOOD LESSON WITH REGARD TO FLC COMMUNICATING WITH EACH OTHER. HE HAS NOT FLOWN THE SAME CAPT SINCE SO CANNOT SAY HOW AFFECTIVE THE INCIDENT WAS TO THE CAPT'S FUTURE HABITS!

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.