Aircraft Y had near midair collision with military X on final approach to bfl airport. See and avoid...

Attributes
ACN	187198
Time
Date	199108
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : bfl
State Reference	CA
Altitude	msl bound lower : 2000 msl bound upper : 2400
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : bfl
Operator	other
Make Model Name	Helicopter
Flight Phase	descent : approach
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	climbout : initial cruise other
Route In Use	enroute : direct
Flight Plan	None
Person 1
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
ASRS Report	187198
Person 2
Affiliation	government : military
Function	flight crew : captain oversight : pic
Qualification	pilot : military
Events
Anomaly	conflict : nmac
Independent Detector	other controllera
Resolutory Action	none taken : anomaly accepted
Consequence	Other
Miss Distance	horizontal : 0 vertical : 400
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

Military X ILS to bfl. 8 mi final. 2400 ft MSL. At bakersfield municipal (L45), aircraft Y departed runway 34, right turn, across the localizer to rio bravo airport (L91). Unknown aircraft Y climbed to 2000 and merged with arrival uhi. L45 airport has a sign, 'no right turn out.' this is a common occurrence. Usually aircraft navigation via niley NDB which is bfl ILS IAF crossing altitude, 2341 ft. The NDB is 5 mi final. L45 is the home to many composite/experimental aircraft, some with no transponders. L45 final/straight-in is bfl 10 mi base for practice ILS. At bfl we issue lots of traffic/traffic alerts because of this situation.

Original NASA ASRS Text

Title: ACFT Y HAD NMAC WITH MIL X ON FINAL APCH TO BFL ARPT. SEE AND AVOID CONCEPT.

Narrative: MIL X ILS TO BFL. 8 MI FINAL. 2400 FT MSL. AT BAKERSFIELD MUNICIPAL (L45), ACFT Y DEPARTED RWY 34, R TURN, ACROSS THE LOC TO RIO BRAVO ARPT (L91). UNKNOWN ACFT Y CLBED TO 2000 AND MERGED WITH ARR UHI. L45 ARPT HAS A SIGN, 'NO R TURN OUT.' THIS IS A COMMON OCCURRENCE. USUALLY ACFT NAV VIA NILEY NDB WHICH IS BFL ILS IAF XING ALT, 2341 FT. THE NDB IS 5 MI FINAL. L45 IS THE HOME TO MANY COMPOSITE/EXPERIMENTAL ACFT, SOME WITH NO TRANSPONDERS. L45 FINAL/STRAIGHT-IN IS BFL 10 MI BASE FOR PRACTICE ILS. AT BFL WE ISSUE LOTS OF TFC/TFC ALERTS BECAUSE OF THIS SITUATION.

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.

Aircraft Y had near midair collision with military X on final approach to bfl airport. See and avoid concept.