Narrative:

On vectors to intercept the bur localizer we were cleared for the ILS 8 approach. #1 navigation radio was tuned to 109.5 and the GS flag was in view on the #1 HSI. #2 navigation radio was tuned to vny VOR (113.1). Localizer and VOR were both indented and localizer on #1 was functioning properly. 'Silex' intersection was crossed at 3500 ft MSL and descent was commenced to MDA (1140 ft MSL), since GS was showing inoperative on #1 HSI. Approximately 2 mins later, the #2 navigation radio was tuned to the bur localizer, which is presented on the #1 ADI. GS was showing below glidepath. Descent was stopped and a slight climb commenced at about 1500 ft MSL. Shortly (within seconds) after bur tower instructed us to maintain 2000 ft MSL, glidepath was intercepted and a landing to runway 8 was accomplished. A phone call to bur TRACON was requested by the tower. Bur TRACON wanted to know the reason for transiting vny's airspace and the same explanation as above was given.

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Original NASA ASRS Text

Title: UNAUTH PENETRATION OF AIRSPACE AFTER DEV FROM IAP ILS APCH LOC APCH.

Narrative: ON VECTORS TO INTERCEPT THE BUR LOC WE WERE CLRED FOR THE ILS 8 APCH. #1 NAV RADIO WAS TUNED TO 109.5 AND THE GS FLAG WAS IN VIEW ON THE #1 HSI. #2 NAV RADIO WAS TUNED TO VNY VOR (113.1). LOC AND VOR WERE BOTH INDENTED AND LOC ON #1 WAS FUNCTIONING PROPERLY. 'SILEX' INTXN WAS CROSSED AT 3500 FT MSL AND DSCNT WAS COMMENCED TO MDA (1140 FT MSL), SINCE GS WAS SHOWING INOP ON #1 HSI. APPROX 2 MINS LATER, THE #2 NAV RADIO WAS TUNED TO THE BUR LOC, WHICH IS PRESENTED ON THE #1 ADI. GS WAS SHOWING BELOW GLIDEPATH. DSCNT WAS STOPPED AND A SLIGHT CLB COMMENCED AT ABOUT 1500 FT MSL. SHORTLY (WITHIN SECONDS) AFTER BUR TWR INSTRUCTED US TO MAINTAIN 2000 FT MSL, GLIDEPATH WAS INTERCEPTED AND A LNDG TO RWY 8 WAS ACCOMPLISHED. A PHONE CALL TO BUR TRACON WAS REQUESTED BY THE TWR. BUR TRACON WANTED TO KNOW THE REASON FOR TRANSITING VNY'S AIRSPACE AND THE SAME EXPLANATION AS ABOVE WAS GIVEN.

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.