Small transport on ILS approach sights small aircraft crossing approach route. Near midair collision...

Attributes
ACN	155022
Time
Date	199008
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : aeg
State Reference	NM
Altitude	msl bound lower : 7000 msl bound upper : 7000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : abq
Operator	general aviation : instructional
Make Model Name	Small Transport, Low Wing, 2 Recip Eng
Flight Phase	descent : approach
Flight Plan	VFR
Aircraft 2
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Fixed Gear
Flight Phase	cruise other
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : atp pilot : cfi
Experience	flight time last 90 days : 75 flight time total : 10000
ASRS Report	155022
Person 2
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
Events
Anomaly	conflict : nmac other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : insufficient time
Consequence	Other
Miss Distance	horizontal : 100 vertical : 50
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

Aircraft suddenly appeared between nose and right engine nacelle approximately 50' below our small transport. The aircraft was an small aircraft. I believe the small aircraft was on a collision course for about one min hidden by the right tip tank of the small transport and traveling span wise to a point where he intercepted the inbound azimuth of the ILS (215 degree). At this time he appeared as described. The conflict could have been avoided had the small aircraft been in contact with approach control (abq). We were working approach and at the OM were released to CTAF. At no time was the small aircraft communicating with abq approach. He was announcing on CTAF but we obviously missed his call as we were on approach. Area ATC needs to impress upon local pilots the necessity for contacting approach control prior to using the ILS course at aeg.

Original NASA ASRS Text

Title: SMT ON ILS APCH SIGHTS SMA CROSSING APCH ROUTE. NMAC.

Narrative: ACFT SUDDENLY APPEARED BTWN NOSE AND R ENG NACELLE APPROX 50' BELOW OUR SMT. THE ACFT WAS AN SMA. I BELIEVE THE SMA WAS ON A COLLISION COURSE FOR ABOUT ONE MIN HIDDEN BY THE R TIP TANK OF THE SMT AND TRAVELING SPAN WISE TO A POINT WHERE HE INTERCEPTED THE INBND AZIMUTH OF THE ILS (215 DEG). AT THIS TIME HE APPEARED AS DESCRIBED. THE CONFLICT COULD HAVE BEEN AVOIDED HAD THE SMA BEEN IN CONTACT WITH APCH CTL (ABQ). WE WERE WORKING APCH AND AT THE OM WERE RELEASED TO CTAF. AT NO TIME WAS THE SMA COMMUNICATING WITH ABQ APCH. HE WAS ANNOUNCING ON CTAF BUT WE OBVIOUSLY MISSED HIS CALL AS WE WERE ON APCH. AREA ATC NEEDS TO IMPRESS UPON LCL PLTS THE NECESSITY FOR CONTACTING APCH CTL PRIOR TO USING THE ILS COURSE AT AEG.

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.