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PA30 pilot enters phx class B accidentally. An inverter failure affected his flight director. By following the failed flight director he entered the phx class B. He was distraction by a failed and flopping gear door. That kept him from recognizing the error as instigated by the flight director.
| Attributes | |
| ACN | 370825 |
| Time | |
| Date | 199706 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : phx airport : sdl |
| State Reference | AZ |
| Altitude | agl bound lower : 3500 agl bound upper : 3500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : phx tower : sdl |
| Operator | general aviation : personal |
| Make Model Name | PA-30 Twin Comanche |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise other |
| Flight Plan | None |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : instrument pilot : commercial |
| Experience | flight time last 90 days : 150 flight time total : 10000 flight time type : 100 |
| ASRS Report | 370825 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : local |
| Qualification | controller : non radar |
| Events | |
| Anomaly | aircraft equipment problem : critical non adherence : published procedure non adherence : far other anomaly other other spatial deviation |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : exited penetrated airspace flight crew : became reoriented |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | Pilot Deviation other |
Narrative:
After takeoff from sdl airport, az, I had inverter failure and gear door failure almost at same time. Aircraft was just out of shop at sdl for inverter trouble. When inverter failed, flight director failed, and with gear door trouble, I did not notice a failure of flight director immediately. I had already asked for and was given tower permission to cross deer valley airspace and with failed flight director, I was in phx airspace. When I saw I was in phx airspace, I immediately departed and called luke approach. Aircraft is at sdl airport for gear door repair and inverter repair. I did everything I was supposed to do as per flight manual with the gear door hammering under left wing. It was a short time before I noticed the false reading on my flight director. With the small distance between sdl and phx, I had entered class B airspace.
Original NASA ASRS Text
Title: PA30 PLT ENTERS PHX CLASS B ACCIDENTALLY. AN INVERTER FAILURE AFFECTED HIS FLT DIRECTOR. BY FOLLOWING THE FAILED FLT DIRECTOR HE ENTERED THE PHX CLASS B. HE WAS DISTR BY A FAILED AND FLOPPING GEAR DOOR. THAT KEPT HIM FROM RECOGNIZING THE ERROR AS INSTIGATED BY THE FLT DIRECTOR.
Narrative: AFTER TKOF FROM SDL ARPT, AZ, I HAD INVERTER FAILURE AND GEAR DOOR FAILURE ALMOST AT SAME TIME. ACFT WAS JUST OUT OF SHOP AT SDL FOR INVERTER TROUBLE. WHEN INVERTER FAILED, FLT DIRECTOR FAILED, AND WITH GEAR DOOR TROUBLE, I DID NOT NOTICE A FAILURE OF FLT DIRECTOR IMMEDIATELY. I HAD ALREADY ASKED FOR AND WAS GIVEN TWR PERMISSION TO CROSS DEER VALLEY AIRSPACE AND WITH FAILED FLT DIRECTOR, I WAS IN PHX AIRSPACE. WHEN I SAW I WAS IN PHX AIRSPACE, I IMMEDIATELY DEPARTED AND CALLED LUKE APCH. ACFT IS AT SDL ARPT FOR GEAR DOOR REPAIR AND INVERTER REPAIR. I DID EVERYTHING I WAS SUPPOSED TO DO AS PER FLT MANUAL WITH THE GEAR DOOR HAMMERING UNDER L WING. IT WAS A SHORT TIME BEFORE I NOTICED THE FALSE READING ON MY FLT DIRECTOR. WITH THE SMALL DISTANCE BTWN SDL AND PHX, I HAD ENTERED CLASS B AIRSPACE.
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.