A departure small aircraft private pilot is advised by departure controller that his altitude readout varied from his planned cruise altitude. Reporter just had a new mode 'south' transponder installed at a workshop at mci, mo.

Home

Browse by month

Random

Latest

About

Contact

Attributes
ACN	582756
Time
Date	200305
Day	Fri
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : mci.airport
State Reference	MO
Altitude	msl bound lower : 6500 msl bound upper : 6900
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Controlling Facilities	tracon : mci.tracon
Operator	general aviation : personal
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Fixed Gear
Operating Under FAR Part	Part 91
Navigation In Use	other
Flight Phase	cruise : level
Flight Plan	VFR
Person 1
Affiliation	other
Function	flight crew : single pilot oversight : pic
Qualification	pilot : instrument pilot : private
Experience	flight time last 90 days : 50 flight time total : 3400 flight time type : 500
ASRS Report	582756
Person 2
Affiliation	government : faa
Function	controller : approach
Events
Anomaly	aircraft equipment problem : less severe non adherence : far other anomaly other
Independent Detector	atc equipment other atc equipment : mode c radar other controllera
Resolutory Action	controller : issued advisory none taken : anomaly accepted
Supplementary
Problem Areas	Aircraft Company
Primary Problem	Aircraft

Narrative:

Just picked up plane from avionics shop. Had a new mode south transponder and a traffic information system installed. Altimeter read 6500 ft. Approach informed me they showed me at 6900 ft. My altimeter barometric setting was set correctly and verified at 30.05. My answer: have system checked and recalibrated and ask ATC to verify my altitude before I have assigned altitude after this type of avionics work.

Original NASA ASRS Text

Title: A DEP SMA PVT PLT IS ADVISED BY DEP CTLR THAT HIS ALT READOUT VARIED FROM HIS PLANNED CRUISE ALT. RPTR JUST HAD A NEW MODE 'S' XPONDER INSTALLED AT A WORKSHOP AT MCI, MO.

Narrative: JUST PICKED UP PLANE FROM AVIONICS SHOP. HAD A NEW MODE S XPONDER AND A TFC INFO SYS INSTALLED. ALTIMETER READ 6500 FT. APCH INFORMED ME THEY SHOWED ME AT 6900 FT. MY ALTIMETER BAROMETRIC SETTING WAS SET CORRECTLY AND VERIFIED AT 30.05. MY ANSWER: HAVE SYS CHKED AND RECALIBRATED AND ASK ATC TO VERIFY MY ALT BEFORE I HAVE ASSIGNED ALT AFTER THIS TYPE OF AVIONICS WORK.

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.