Single pilot in the confusion of a near miss on final may have landed without clearance.

Attributes
ACN	493058
Time
Date	200011
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : rdu.airport
State Reference	NC
Altitude	msl bound lower : 2000 msl bound upper : 2500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : rdu.tracon tower : rdu.tower
Operator	general aviation : personal
Make Model Name	Bonanza 36
Operating Under FAR Part	Part 91
Navigation In Use	ils localizer & glide slope : 5l
Flight Phase	descent : approach
Route In Use	approach : instrument precision arrival : on vectors arrival : vfr
Flight Plan	None
Aircraft 2
Controlling Facilities	tracon : rdu.tracon
Operator	general aviation : personal
Make Model Name	Piper Single Undifferentiated or Other Model
Operating Under FAR Part	Part 91
Flight Phase	descent : approach
Route In Use	approach : visual
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : instrument pilot : commercial pilot : multi engine
Experience	flight time last 90 days : 41 flight time total : 6206 flight time type : 713
ASRS Report	493058
Person 2
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : private
Events
Anomaly	conflict : nmac non adherence : required legal separation non adherence : far other anomaly other
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance controller : separated traffic flight crew : took evasive action
Miss Distance	horizontal : 100 vertical : 300
Supplementary
Problem Areas	Flight Crew Human Performance Aircraft ATC Human Performance
Primary Problem	ATC Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

After a VFR departure from I6X I climbed to 2500 ft and contacted rdu approach for flight following and a request for a practice ILS approach at rdu with a full stop landing planned. Approach assigned a transponder code and informed me to expect vectors for an ILS to runway 5L at rdu. Normal vectoring for the approach continued immediately with a few calls for traffic prior to being cleared for the approach. After being cleared for the approach to runway 5L a traffic call was made at my 10 O'clock position. I did not see the traffic and informed the controller. Now inbound to marker the controller asked for an immediate descent to 2000 ft. The traffic was reported to be at 2500 ft. I immediately started the descent, taking me well below the GS. I then saw the aircraft at 11 O'clock position, and informed approach. Approach then cleared me to resume the approach and contact tower. Simultaneous with this activity, the passenger who were both on the aircraft's intercom system became concerned about the proximity of the other aircraft and began asking numerous questions. Landing checks were performed and an uneventful landing was made on runway 5L at rdu. In all of the confusion that occurred during the handoff with traffic and the conversations occurring over the aircraft's intercom, I cannot confirm that I received and acknowledged landing clearance. No questions or comments were received from tower or ground after landing.

Original NASA ASRS Text

Title: SINGLE PLT IN THE CONFUSION OF A NEAR MISS ON FINAL MAY HAVE LANDED WITHOUT CLRNC.

Narrative: AFTER A VFR DEP FROM I6X I CLBED TO 2500 FT AND CONTACTED RDU APCH FOR FLT FOLLOWING AND A REQUEST FOR A PRACTICE ILS APCH AT RDU WITH A FULL STOP LNDG PLANNED. APCH ASSIGNED A XPONDER CODE AND INFORMED ME TO EXPECT VECTORS FOR AN ILS TO RWY 5L AT RDU. NORMAL VECTORING FOR THE APCH CONTINUED IMMEDIATELY WITH A FEW CALLS FOR TFC PRIOR TO BEING CLRED FOR THE APCH. AFTER BEING CLRED FOR THE APCH TO RWY 5L A TFC CALL WAS MADE AT MY 10 O'CLOCK POS. I DID NOT SEE THE TFC AND INFORMED THE CTLR. NOW INBOUND TO MARKER THE CTLR ASKED FOR AN IMMEDIATE DSCNT TO 2000 FT. THE TFC WAS RPTED TO BE AT 2500 FT. I IMMEDIATELY STARTED THE DSCNT, TAKING ME WELL BELOW THE GS. I THEN SAW THE ACFT AT 11 O'CLOCK POS, AND INFORMED APCH. APCH THEN CLRED ME TO RESUME THE APCH AND CONTACT TWR. SIMULTANEOUS WITH THIS ACTIVITY, THE PAX WHO WERE BOTH ON THE ACFT'S INTERCOM SYS BECAME CONCERNED ABOUT THE PROX OF THE OTHER ACFT AND BEGAN ASKING NUMEROUS QUESTIONS. LNDG CHKS WERE PERFORMED AND AN UNEVENTFUL LNDG WAS MADE ON RWY 5L AT RDU. IN ALL OF THE CONFUSION THAT OCCURRED DURING THE HDOF WITH TFC AND THE CONVERSATIONS OCCURRING OVER THE ACFT'S INTERCOM, I CANNOT CONFIRM THAT I RECEIVED AND ACKNOWLEDGED LNDG CLRNC. NO QUESTIONS OR COMMENTS WERE RECEIVED FROM TWR OR GND AFTER LNDG.

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.