A private pilot in a PA28 enters the slc class B without authority/authorized. Aircraft had a defect...

Attributes
ACN	403012
Time
Date	199805
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : btf
State Reference	UT
Altitude	agl bound lower : 1500 agl bound upper : 1500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : slc
Operator	general aviation : personal
Make Model Name	PA-28 Cherokee Arrow IV
Operating Under FAR Part	Part 91
Flight Phase	climbout : intermediate altitude
Route In Use	enroute : direct
Flight Plan	VFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : instrument pilot : private
Experience	flight time last 90 days : 19 flight time total : 643 flight time type : 345
ASRS Report	403012
Person 2
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Events
Anomaly	aircraft equipment problem : less severe non adherence : published procedure non adherence : far non adherence : clearance other anomaly other other anomaly other
Independent Detector	other controllera
Resolutory Action	none taken : insufficient time
Consequence	faa : investigated
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation other

Narrative:

May/xa/98 I flew from lgu to btf and then to U07, VFR in arrow. On the flight from lgu to btf, slc approach said that my mode C was intermittent. I landed at btf and picked up my passenger. At the end of the runway after runup I called slc approach on 120.7 as directed by the sign there for IFR or VFR clearance. Approach instructed me to contact slc tower after I was airborne. The first mistake I made was to assume that they would tell the tower I was coming. I went back to CTAF and departed btf to the south. There is only a few mi before you enter class B. I called tower and they assigned a transponder code and said get ATIS and stay clear of class B. I misunderstood the clear of class B as cleared class B. Then they said my mode C was not working and to cycle it off and back on, which I did. By this time I was in class B. They then told me that I had entered class B without clearance. They asked then if I wanted to return to btf because of the mode C problem. I elected to continue the flight because there was no way to get the mode C fixed then and I was working on getting the 24 months inspections done the next week anyway. Approach told me after I was handed back to them by the tower that they would report this to the FAA. I made a couple of mistakes. The first was assuming that by talking to approach control while on the ground at btf that when I talked to the tower they would clear me for class B. The second was that I did not abort the flight when approach told me that my mode C was intermittent. Approach did not tell me not to continue when I was going in so I assumed that I could continue the flight. One of the other things that confused me was the request to pick up slc ATIS, because I was not going to their airport. On the return trip I did not return my passenger to btf but flew to lgu and drove them to btf to avoid the class B.

Original NASA ASRS Text

Title: A PVT PLT IN A PA28 ENTERS THE SLC CLASS B WITHOUT AUTH. ACFT HAD A DEFECTIVE MODE C AND HAD BEEN ADVISED OF THIS PRIOR TO LNDG AND DEP FROM BTF ARPT PRIOR TO THE PENETRATION.

Narrative: MAY/XA/98 I FLEW FROM LGU TO BTF AND THEN TO U07, VFR IN ARROW. ON THE FLT FROM LGU TO BTF, SLC APCH SAID THAT MY MODE C WAS INTERMITTENT. I LANDED AT BTF AND PICKED UP MY PAX. AT THE END OF THE RWY AFTER RUNUP I CALLED SLC APCH ON 120.7 AS DIRECTED BY THE SIGN THERE FOR IFR OR VFR CLRNC. APCH INSTRUCTED ME TO CONTACT SLC TWR AFTER I WAS AIRBORNE. THE FIRST MISTAKE I MADE WAS TO ASSUME THAT THEY WOULD TELL THE TWR I WAS COMING. I WENT BACK TO CTAF AND DEPARTED BTF TO THE S. THERE IS ONLY A FEW MI BEFORE YOU ENTER CLASS B. I CALLED TWR AND THEY ASSIGNED A XPONDER CODE AND SAID GET ATIS AND STAY CLR OF CLASS B. I MISUNDERSTOOD THE CLR OF CLASS B AS CLRED CLASS B. THEN THEY SAID MY MODE C WAS NOT WORKING AND TO CYCLE IT OFF AND BACK ON, WHICH I DID. BY THIS TIME I WAS IN CLASS B. THEY THEN TOLD ME THAT I HAD ENTERED CLASS B WITHOUT CLRNC. THEY ASKED THEN IF I WANTED TO RETURN TO BTF BECAUSE OF THE MODE C PROB. I ELECTED TO CONTINUE THE FLT BECAUSE THERE WAS NO WAY TO GET THE MODE C FIXED THEN AND I WAS WORKING ON GETTING THE 24 MONTHS INSPECTIONS DONE THE NEXT WK ANYWAY. APCH TOLD ME AFTER I WAS HANDED BACK TO THEM BY THE TWR THAT THEY WOULD RPT THIS TO THE FAA. I MADE A COUPLE OF MISTAKES. THE FIRST WAS ASSUMING THAT BY TALKING TO APCH CTL WHILE ON THE GND AT BTF THAT WHEN I TALKED TO THE TWR THEY WOULD CLR ME FOR CLASS B. THE SECOND WAS THAT I DID NOT ABORT THE FLT WHEN APCH TOLD ME THAT MY MODE C WAS INTERMITTENT. APCH DID NOT TELL ME NOT TO CONTINUE WHEN I WAS GOING IN SO I ASSUMED THAT I COULD CONTINUE THE FLT. ONE OF THE OTHER THINGS THAT CONFUSED ME WAS THE REQUEST TO PICK UP SLC ATIS, BECAUSE I WAS NOT GOING TO THEIR ARPT. ON THE RETURN TRIP I DID NOT RETURN MY PAX TO BTF BUT FLEW TO LGU AND DROVE THEM TO BTF TO AVOID THE CLASS B.

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.

A private pilot in a PA28 enters the slc class B without authority/authorized. Aircraft had a defective mode C and had been advised of this prior to landing and departure from btf airport prior to the penetration.