Narrative:

I was cleared for an ILS approach to runway 5 at ZZZ. Visibility was about 6 mi; no clouds. I was listening to unicom while nearing the final fix. Determined that there was a C172 (or similar) doing touch and goes on runway 23. I believed that I could land on runway 5 safely after he had completed his takeoff from runway 23. I made several announcements of my location and intentions; and I could both hear him report his position and see him on the runway and after takeoff. I easily flew under the other aircraft by at least 500 ft. After landing; the other aircraft called on unicom to the 'plane which landed' and said he suspected we had flown under him. I acknowledged that I had done the same and that I had broadcast my intentions several times and heard his broadcasts. He said he had not heard my broadcasts. After landing I could see that this was an instructor with a student; most likely prepping for some unsupervised solo touch and goes; because the instructor got out and watched the other pilot do that. It dawned on me that I had gone against my usual procedure of entering pattern with prevailing traffic; all in the interest of saving a few mins. I had not endangered another pilot; but I had subjected them to a scenario in which they were unwilling participants. For all I knew; the PF could have been a student pilot on first solo; and I would have been throwing in unneeded variables to their flight. I thought back to my time as a flight instructor in similar situations and my chagrin at seeing a cpr or charter plane come in and take shortcuts instead of going with the flow. I have determined to supervise myself more closely and see that I stick to standard procedures rather than do something I might even be aghast at observing another pilot doing.

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Original NASA ASRS Text

Title: BE58 PILOT ON APPROACH REPORTS FLYING UNDER A C172 ON DEPARTURE IN THE OPPOSITE DIRECTION AFTER ANNOUNCING HIS INTENTIONS TO DO SO ON CTAF.

Narrative: I WAS CLRED FOR AN ILS APCH TO RWY 5 AT ZZZ. VISIBILITY WAS ABOUT 6 MI; NO CLOUDS. I WAS LISTENING TO UNICOM WHILE NEARING THE FINAL FIX. DETERMINED THAT THERE WAS A C172 (OR SIMILAR) DOING TOUCH AND GOES ON RWY 23. I BELIEVED THAT I COULD LAND ON RWY 5 SAFELY AFTER HE HAD COMPLETED HIS TKOF FROM RWY 23. I MADE SEVERAL ANNOUNCEMENTS OF MY LOCATION AND INTENTIONS; AND I COULD BOTH HEAR HIM RPT HIS POS AND SEE HIM ON THE RWY AND AFTER TKOF. I EASILY FLEW UNDER THE OTHER ACFT BY AT LEAST 500 FT. AFTER LNDG; THE OTHER ACFT CALLED ON UNICOM TO THE 'PLANE WHICH LANDED' AND SAID HE SUSPECTED WE HAD FLOWN UNDER HIM. I ACKNOWLEDGED THAT I HAD DONE THE SAME AND THAT I HAD BROADCAST MY INTENTIONS SEVERAL TIMES AND HEARD HIS BROADCASTS. HE SAID HE HAD NOT HEARD MY BROADCASTS. AFTER LNDG I COULD SEE THAT THIS WAS AN INSTRUCTOR WITH A STUDENT; MOST LIKELY PREPPING FOR SOME UNSUPERVISED SOLO TOUCH AND GOES; BECAUSE THE INSTRUCTOR GOT OUT AND WATCHED THE OTHER PLT DO THAT. IT DAWNED ON ME THAT I HAD GONE AGAINST MY USUAL PROC OF ENTERING PATTERN WITH PREVAILING TFC; ALL IN THE INTEREST OF SAVING A FEW MINS. I HAD NOT ENDANGERED ANOTHER PLT; BUT I HAD SUBJECTED THEM TO A SCENARIO IN WHICH THEY WERE UNWILLING PARTICIPANTS. FOR ALL I KNEW; THE PF COULD HAVE BEEN A STUDENT PLT ON FIRST SOLO; AND I WOULD HAVE BEEN THROWING IN UNNEEDED VARIABLES TO THEIR FLT. I THOUGHT BACK TO MY TIME AS A FLT INSTRUCTOR IN SIMILAR SITUATIONS AND MY CHAGRIN AT SEEING A CPR OR CHARTER PLANE COME IN AND TAKE SHORTCUTS INSTEAD OF GOING WITH THE FLOW. I HAVE DETERMINED TO SUPERVISE MYSELF MORE CLOSELY AND SEE THAT I STICK TO STANDARD PROCS RATHER THAN DO SOMETHING I MIGHT EVEN BE AGHAST AT OBSERVING ANOTHER PLT DOING.

Data retrieved from NASA's ASRS site as of January 2009 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.