Near midair collision. Unauthorized penetration of airspace.

Attributes
ACN	150443
Time
Date	199007
Day	Mon
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : san
State Reference	CA
Altitude	msl bound lower : 2500 msl bound upper : 3000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : san tower : lax
Operator	common carrier : air carrier
Make Model Name	Light Transport, Low Wing, 2 Turboprop Eng
Flight Phase	cruise other descent : approach descent other
Route In Use	approach : visual arrival other
Flight Plan	IFR
Aircraft 2
Operator	general aviation : personal
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Retractable Gear
Flight Phase	cruise other
Flight Plan	None
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 4000
ASRS Report	150443
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	conflict : nmac non adherence : required legal separation non adherence : far non adherence : clearance other anomaly other
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance other other
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 0 vertical : 500
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

While descending through 3500' MSL on visibility approach to runway 27 at san diego lindbergh airport, traffic was issued at 11 O'clock at 2500' MSL. We were told to not descend lower than 3000' MSL which we complied with. The small aircraft traffic passed under our aircraft and was spotted by the first officer on his side. We continued descent keeping visibility on the small aircraft Y. Our passengers saw the small aircraft and we discussed the incident with them as they deplaned. Tower told us the small aircraft was flying in the san diego TCA west/O clearance and west/O any radio communications.

Original NASA ASRS Text

Title: NMAC. UNAUTH PENETRATION OF AIRSPACE.

Narrative: WHILE DSNDING THROUGH 3500' MSL ON VIS APCH TO RWY 27 AT SAN DIEGO LINDBERGH ARPT, TFC WAS ISSUED AT 11 O'CLOCK AT 2500' MSL. WE WERE TOLD TO NOT DSND LOWER THAN 3000' MSL WHICH WE COMPLIED WITH. THE SMA TFC PASSED UNDER OUR ACFT AND WAS SPOTTED BY THE F/O ON HIS SIDE. WE CONTINUED DSNT KEEPING VIS ON THE SMA Y. OUR PAXS SAW THE SMA AND WE DISCUSSED THE INCIDENT WITH THEM AS THEY DEPLANED. TWR TOLD US THE SMA WAS FLYING IN THE SAN DIEGO TCA W/O CLRNC AND W/O ANY RADIO COMS.

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.