Narrative:

I had been vectored and given radials for approach to runway 23L at yip, last one being 110 degrees off salen VOR by the dtw approach controller. I was at 3000' and several frequencys had been given. Awaiting the handoff to yip tower and not receiving it as I passed through the ILS 23L approach course. WX was VFR about 5 mi and haze. I did not make visibility with yip. As I passed through the approach course I called approach and advised. Radio use was busy and with no response from approach I returned to my last frequency and was advised I had been NORDO and into metropolitan traffic. Also I was given vectors and a frequency and some dialogue by the controller. Further approach to ypi was uneventful and I phoned the controller as requested. The aircraft had 2 microphone switches as 1 was in process of repair. Possibly I inadvertently used wrong switch. Possibly approach missed my first call. 2 airports close together made time a essence. Possibly approach could have turned me in sooner and handed me off to tower sooner.

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Original NASA ASRS Text

Title: LOST COM SITUATION LEADS SMA PLT INTO OTHER ATA.

Narrative: I HAD BEEN VECTORED AND GIVEN RADIALS FOR APCH TO RWY 23L AT YIP, LAST ONE BEING 110 DEGS OFF SALEN VOR BY THE DTW APCH CTLR. I WAS AT 3000' AND SEVERAL FREQS HAD BEEN GIVEN. AWAITING THE HDOF TO YIP TWR AND NOT RECEIVING IT AS I PASSED THROUGH THE ILS 23L APCH COURSE. WX WAS VFR ABOUT 5 MI AND HAZE. I DID NOT MAKE VIS WITH YIP. AS I PASSED THROUGH THE APCH COURSE I CALLED APCH AND ADVISED. RADIO USE WAS BUSY AND WITH NO RESPONSE FROM APCH I RETURNED TO MY LAST FREQ AND WAS ADVISED I HAD BEEN NORDO AND INTO METRO TFC. ALSO I WAS GIVEN VECTORS AND A FREQ AND SOME DIALOGUE BY THE CTLR. FURTHER APCH TO YPI WAS UNEVENTFUL AND I PHONED THE CTLR AS REQUESTED. THE ACFT HAD 2 MIC SWITCHES AS 1 WAS IN PROCESS OF REPAIR. POSSIBLY I INADVERTENTLY USED WRONG SWITCH. POSSIBLY APCH MISSED MY FIRST CALL. 2 ARPTS CLOSE TOGETHER MADE TIME A ESSENCE. POSSIBLY APCH COULD HAVE TURNED ME IN SOONER AND HANDED ME OFF TO TWR SOONER.

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.