A C310 climbs above its assigned altitude while in the holding pattern southeast of bjc, co.

Attributes
ACN	448130
Time
Date	199909
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	navaid : bjc.vor
State Reference	CO
Altitude	msl bound lower : 7500 msl bound upper : 8000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : d01.tracon
Operator	general aviation : instructional
Make Model Name	Cessna 310/T310C
Operating Under FAR Part	Part 91
Navigation In Use	other vortac
Flight Phase	cruise : holding
Route In Use	arrival : holding pattern
Flight Plan	IFR
Person 1
Affiliation	other
Function	instruction : trainee
Qualification	pilot : private pilot : multi engine
ASRS Report	448130
Person 2
Affiliation	other
Function	instruction : instructor
Qualification	pilot : multi engine pilot : instrument pilot : commercial pilot : cfi
ASRS Report	448137
Events
Anomaly	altitude deviation : excursion from assigned altitude non adherence : published procedure other spatial deviation
Independent Detector	other controllera
Resolutory Action	controller : issued advisory
Supplementary
Problem Areas	Flight Crew Human Performance Environmental Factor Airspace Structure
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Given unpublished hold (hold west on 110 degree radial bjc 7 DME) student turned second obs to outbound heading. Discussion opened, attention to altitude, lost momentary, 500 ft high. Controller called, returned to 7500 ft. Pay attention!

Original NASA ASRS Text

Title: A C310 CLBS ABOVE ITS ASSIGNED ALT WHILE IN THE HOLDING PATTERN SE OF BJC, CO.

Narrative: GIVEN UNPUBLISHED HOLD (HOLD W ON 110 DEG RADIAL BJC 7 DME) STUDENT TURNED SECOND OBS TO OUTBOUND HDG. DISCUSSION OPENED, ATTN TO ALT, LOST MOMENTARY, 500 FT HIGH. CTLR CALLED, RETURNED TO 7500 FT. PAY ATTN!

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.