Flight instructor enters class B veil without the required mode C transponder capability.

Attributes
ACN	459879
Time
Date	200001
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : s56.tracon
State Reference	UT
Altitude	msl single value : 8000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Skyhawk 172/Cutlass 172
Operating Under FAR Part	Part 91
Navigation In Use	other
Flight Phase	cruise : level
Route In Use	enroute : direct
Flight Plan	None
Person 1
Affiliation	other
Function	instruction : instructor
Qualification	pilot : multi engine pilot : instrument pilot : commercial pilot : cfi
Experience	flight time last 90 days : 125 flight time total : 575 flight time type : 151
ASRS Report	459880
Person 2
Affiliation	other
Function	instruction : trainee
Qualification	pilot : private
Events
Anomaly	aircraft equipment problem : less severe airspace violation : entry non adherence : far other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : anomaly accepted
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

It was a VFR training flight with a private pilot, I was the instructor. When we were dispatched to the airplane there was a note that the transducer was indicating a higher than actual altitude. We decided that we would not fly through salt lake's airspace, so we stayed well clear of it. We were not even in radar coverage most of the time, but we were in the mode C viel. It was not until after the flight that I noticed an inoperative sticker on our mode C. Im not sure if it was really inoperative or not, but we were in the mode C viel. Because of transponder problems at the preflight, we decided to go to heber, which was the same general direction as slc. Because of a late start and because the aircraft had to be back soon, we didn't get the most current WX information as we left. We should have taken the time to plan the new flight more thoroughly.

Original NASA ASRS Text

Title: FLT INSTRUCTOR ENTERS CLASS B VEIL WITHOUT THE REQUIRED MODE C XPONDER CAPABILITY.

Narrative: IT WAS A VFR TRAINING FLIGHT WITH A PRIVATE PILOT, I WAS THE INSTRUCTOR. WHEN WE WERE DISPATCHED TO THE AIRPLANE THERE WAS A NOTE THAT THE TRANSDUCER WAS INDICATING A HIGHER THAN ACTUAL ALTITUDE. WE DECIDED THAT WE WOULD NOT FLY THROUGH SALT LAKE'S AIRSPACE, SO WE STAYED WELL CLEAR OF IT. WE WERE NOT EVEN IN RADAR COVERAGE MOST OF THE TIME, BUT WE WERE IN THE MODE C VIEL. IT WAS NOT UNTIL AFTER THE FLIGHT THAT I NOTICED AN INOP STICKER ON OUR MODE C. IM NOT SURE IF IT WAS REALLY INOP OR NOT, BUT WE WERE IN THE MODE C VIEL. BECAUSE OF XPONDER PROBS AT THE PREFLT, WE DECIDED TO GO TO HEBER, WHICH WAS THE SAME GENERAL DIRECTION AS SLC. BECAUSE OF A LATE START AND BECAUSE THE ACFT HAD TO BE BACK SOON, WE DIDN'T GET THE MOST CURRENT WX INFO AS WE LEFT. WE SHOULD HAVE TAKEN THE TIME TO PLAN THE NEW FLT MORE THOROUGHLY.

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.