|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Local Time Of Day||1201 To 1800|
|Locale Reference||airport : mlu|
|Altitude||msl bound lower : 800|
msl bound upper : 800
|Controlling Facilities||tower : mlu|
artcc : mmmx
|Operator||general aviation : corporate|
|Make Model Name||Small Transport, Low Wing, 2 Turboprop Eng|
|Flight Phase||descent : approach|
|Function||flight crew : captain|
oversight : pic
|Qualification||pilot : atp|
pilot : cfi
|Experience||flight time last 90 days : 40|
flight time total : 7500
flight time type : 100
|Function||flight crew : first officer|
|Qualification||pilot : commercial|
pilot : instrument
|Anomaly||other anomaly other|
|Independent Detector||other controllera|
|Resolutory Action||flight crew : became reoriented|
|Consequence||faa : reviewed incident with flight crew|
|Primary Problem||ATC Human Performance|
|Air Traffic Incident||Operational Deviation|
On approach hand flying command bars with flight director coupled to ILS. Inside OM on G/south, on localizer at 800' MSL I got red flags on HSI. Copilot said, 'no sweat, #1 inverter failure,' then he switches to #2. Still no information. I had begun to increase power for go around. Suddenly tower said in a very shaky voice, 'turn right heading 270 degrees, climb and maintain 2000'.' simultaneously we broke out at approximately 700' MSL, saw runway and cancelled IFR. As we taxied in I asked ground what the hell that was all about and they asked me to call on phone. Explanation with many apologies: watch supervisor came up into tower. Tower controller was occupied. Supervisor saw wind had changed to favor runway 04 and west/O saying a word switched ILS to opposite runway. We had already been cleared to land so no communication necessary. Solution: don't walk into the tower and start flipping switches west/O talking to someone (even if you are the chief).
Original NASA ASRS Text
Title: ATC TURNED OFF ILS WHILE ACFT WAS FLYING ILS APCH.
Narrative: ON APCH HAND FLYING COMMAND BARS WITH FLT DIRECTOR COUPLED TO ILS. INSIDE OM ON G/S, ON LOC AT 800' MSL I GOT RED FLAGS ON HSI. COPLT SAID, 'NO SWEAT, #1 INVERTER FAILURE,' THEN HE SWITCHES TO #2. STILL NO INFO. I HAD BEGUN TO INCREASE PWR FOR GAR. SUDDENLY TWR SAID IN A VERY SHAKY VOICE, 'TURN R HDG 270 DEGS, CLB AND MAINTAIN 2000'.' SIMULTANEOUSLY WE BROKE OUT AT APPROX 700' MSL, SAW RWY AND CANCELLED IFR. AS WE TAXIED IN I ASKED GND WHAT THE HELL THAT WAS ALL ABOUT AND THEY ASKED ME TO CALL ON PHONE. EXPLANATION WITH MANY APOLOGIES: WATCH SUPVR CAME UP INTO TWR. TWR CTLR WAS OCCUPIED. SUPVR SAW WIND HAD CHANGED TO FAVOR RWY 04 AND W/O SAYING A WORD SWITCHED ILS TO OPPOSITE RWY. WE HAD ALREADY BEEN CLRED TO LAND SO NO COM NECESSARY. SOLUTION: DON'T WALK INTO THE TWR AND START FLIPPING SWITCHES W/O TALKING TO SOMEONE (EVEN IF YOU ARE THE CHIEF).
Data retrieved from NASA's ASRS site as of August 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.