Unauthorized penetration of class B airspace by C-150. Training in progress.

Attributes
ACN	269059
Time
Date	199404
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : den
State Reference	CO
Altitude	msl bound lower : 7000 msl bound upper : 7400
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : den
Operator	general aviation : instructional
Make Model Name	Cessna 150
Operating Under FAR Part	Part 91
Flight Phase	cruise other
Route In Use	enroute : direct
Flight Plan	VFR
Person 1
Affiliation	Other
Function	instruction : instructor oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 150 flight time total : 8500 flight time type : 30
ASRS Report	260059
Person 2
Affiliation	Other
Function	flight crew : single pilot instruction : trainee
Qualification	pilot : student
Events
Anomaly	non adherence : far other anomaly other other anomaly other
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

While climbing out on dual cross country, called den approach to get RA and clearance into class B airspace. Upon establishing contact with den approach, he informed us we were already in class B airspace. Because of class B airspace tier is 7000 ft MSL in this area. Our transponder encoder showed us at 7400 ft MSL. Our altimeter (with proper setting) showed us at 7000 ft MSL. We informed den approach of this discrepancy and stopped our altitude squawk. Approach gave us clearance into class B airspace to climb to our cruising altitude of 7500 ft MSL. I was instructing a student on his first dual cross country and felt his was not the proper way to introduce him to class B airspace. The mechanical condition of this old cessna 152 and its instruments were a factor. It is indeed sad that cessna cannot make new single engine aircraft. Those of us involved in GA will continue to have to 'make do' with our old aircraft and equipment. I hope students some day will be able to enjoy a sparkling new aircraft like I was able to when I was a student. Even though we did not violate class B airspace, ATC thinks we may have so that is why I filed the report.

Original NASA ASRS Text

Title: UNAUTH PENETRATION OF CLASS B AIRSPACE BY C-150. TRAINING IN PROGRESS.

Narrative: WHILE CLBING OUT ON DUAL XCOUNTRY, CALLED DEN APCH TO GET RA AND CLRNC INTO CLASS B AIRSPACE. UPON ESTABLISHING CONTACT WITH DEN APCH, HE INFORMED US WE WERE ALREADY IN CLASS B AIRSPACE. BECAUSE OF CLASS B AIRSPACE TIER IS 7000 FT MSL IN THIS AREA. OUR XPONDER ENCODER SHOWED US AT 7400 FT MSL. OUR ALTIMETER (WITH PROPER SETTING) SHOWED US AT 7000 FT MSL. WE INFORMED DEN APCH OF THIS DISCREPANCY AND STOPPED OUR ALT SQUAWK. APCH GAVE US CLRNC INTO CLASS B AIRSPACE TO CLB TO OUR CRUISING ALT OF 7500 FT MSL. I WAS INSTRUCTING A STUDENT ON HIS FIRST DUAL XCOUNTRY AND FELT HIS WAS NOT THE PROPER WAY TO INTRODUCE HIM TO CLASS B AIRSPACE. THE MECHANICAL CONDITION OF THIS OLD CESSNA 152 AND ITS INSTS WERE A FACTOR. IT IS INDEED SAD THAT CESSNA CANNOT MAKE NEW SINGLE ENG ACFT. THOSE OF US INVOLVED IN GA WILL CONTINUE TO HAVE TO 'MAKE DO' WITH OUR OLD ACFT AND EQUIP. I HOPE STUDENTS SOME DAY WILL BE ABLE TO ENJOY A SPARKLING NEW ACFT LIKE I WAS ABLE TO WHEN I WAS A STUDENT. EVEN THOUGH WE DID NOT VIOLATE CLASS B AIRSPACE, ATC THINKS WE MAY HAVE SO THAT IS WHY I FILED THE RPT.

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.