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A T34 pilot departed eyq prior to receiving IFR clearance and entered class B airspace with a malfunctioning HSI and GPS with an incomplete distance display.
| Attributes | |
| ACN | 700950 |
| Time | |
| Date | 200606 |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : i90.tracon |
| State Reference | TX |
| Altitude | msl single value : 4000 |
| Environment | |
| Flight Conditions | Marginal |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : i90.tracon |
| Operator | general aviation : personal |
| Make Model Name | Beechcraft Single Piston Undifferentiated or Other Model |
| Operating Under FAR Part | Part 91 |
| Navigation In Use | other |
| Flight Phase | climbout : initial |
| Route In Use | departure : vfr |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | other |
| Function | flight crew : single pilot |
| Qualification | pilot : atp pilot : flight engineer |
| Experience | flight time last 90 days : 2 flight time total : 3500 flight time type : 75 |
| ASRS Report | 700950 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Events | |
| Anomaly | aircraft equipment problem : less severe airspace violation : entry non adherence : clearance non adherence : far other spatial deviation |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued advisory controller : issued new clearance flight crew : became reoriented |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Problem Areas | Airspace Structure Aircraft Flight Crew Human Performance |
| Primary Problem | Aircraft |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Filed IFR eyq to adh with instructions to contact houston approach for clearance. No radio contact with approach while on the ground. Departed VFR at XA16 on a magnetic course of 356 degrees. Called approach but no contact. Immediately after departure; I noticed that the HSI appeared to give normal readings. Cross checking with the GPS display I concluded that the HSI was giving erroneous readings. Again called approach without result. The GPS moving map display indicates the limits of class B airspace. As I passed what I assumed was the outer ring I climbed out to have a better chance of contacting approach. This time radio contact was established. The controller advised that I was in class B airspace. Simultaneously; another airspace ring appeared on the moving map display. I was; of course; past the 20 NM ring; not the 30 NM ring. The controller gave me a clearance and I proceeded to destination without relying on the suspect HSI. A combination of divided attention due to instrument failure; delayed radio contact; and navigation setup not compatible with class B airspace identification contributed to this event. Since I expected to be under control on an instrument flight plan; the limits of the class B airspace were not primary to my cockpit setup. An improvement in the moving map display might be to provide a better indication of which ring the airspace is displayed.
Original NASA ASRS Text
Title: A T34 PLT DEPARTED EYQ PRIOR TO RECEIVING IFR CLRNC AND ENTERED CLASS B AIRSPACE WITH A MALFUNCTIONING HSI AND GPS WITH AN INCOMPLETE DISTANCE DISPLAY.
Narrative: FILED IFR EYQ TO ADH WITH INSTRUCTIONS TO CONTACT HOUSTON APCH FOR CLRNC. NO RADIO CONTACT WITH APCH WHILE ON THE GND. DEPARTED VFR AT XA16 ON A MAG COURSE OF 356 DEGS. CALLED APCH BUT NO CONTACT. IMMEDIATELY AFTER DEP; I NOTICED THAT THE HSI APPEARED TO GIVE NORMAL READINGS. CROSS CHKING WITH THE GPS DISPLAY I CONCLUDED THAT THE HSI WAS GIVING ERRONEOUS READINGS. AGAIN CALLED APCH WITHOUT RESULT. THE GPS MOVING MAP DISPLAY INDICATES THE LIMITS OF CLASS B AIRSPACE. AS I PASSED WHAT I ASSUMED WAS THE OUTER RING I CLBED OUT TO HAVE A BETTER CHANCE OF CONTACTING APCH. THIS TIME RADIO CONTACT WAS ESTABLISHED. THE CTLR ADVISED THAT I WAS IN CLASS B AIRSPACE. SIMULTANEOUSLY; ANOTHER AIRSPACE RING APPEARED ON THE MOVING MAP DISPLAY. I WAS; OF COURSE; PAST THE 20 NM RING; NOT THE 30 NM RING. THE CTLR GAVE ME A CLRNC AND I PROCEEDED TO DEST WITHOUT RELYING ON THE SUSPECT HSI. A COMBINATION OF DIVIDED ATTENTION DUE TO INSTRUMENT FAILURE; DELAYED RADIO CONTACT; AND NAV SETUP NOT COMPATIBLE WITH CLASS B AIRSPACE IDENTIFICATION CONTRIBUTED TO THIS EVENT. SINCE I EXPECTED TO BE UNDER CTL ON AN INSTRUMENT FLT PLAN; THE LIMITS OF THE CLASS B AIRSPACE WERE NOT PRIMARY TO MY COCKPIT SETUP. AN IMPROVEMENT IN THE MOVING MAP DISPLAY MIGHT BE TO PROVIDE A BETTER INDICATION OF WHICH RING THE AIRSPACE IS DISPLAYED.
Data retrieved from NASA's ASRS site as of January 2009 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.