A private pilot flying a piper single engine aircraft from sjc failed to maintain altitude as assign...

Attributes
ACN	482960
Time
Date	200008
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	intersection : sunol
State Reference	CA
Altitude	msl bound lower : 5000 msl bound upper : 6000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : o90.tracon tower : ash.tower
Operator	general aviation : personal
Make Model Name	PA-42 Cheyenne IIA
Operating Under FAR Part	Part 91
Flight Phase	climbout : intermediate altitude
Route In Use	departure : other published ifr departure
Flight Plan	IFR
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : private pilot : instrument pilot : multi engine
Experience	flight time last 90 days : 90 flight time total : 5200 flight time type : 500
ASRS Report	482960
Person 2
Affiliation	government : faa
Function	controller : departure controller : radar
Qualification	controller : radar
Events
Anomaly	altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : far non adherence : clearance non adherence : published procedure
Resolutory Action	controller : provided flight assist none taken : detected after the fact
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

During departure from san jose, was at assigned altitude of 5000 ft. When reporting to next sector, controller advised traffic, and to maintain 7000 ft. Read back 7000 ft and began climb. Controller then asked altitude and I reported 6000 ft. Controller asked what altitude I was assigned and I reiterated 7000 ft and reported traffic in sight. Tcad did not go off (alert) so I don't think there was likely a separation conflict. However, I think the controller erred in the assignment of 7000 ft.

Original NASA ASRS Text

Title: A PVT PLT FLYING A PIPER SINGLE ENG ACFT FROM SJC FAILED TO MAINTAIN ALT AS ASSIGNED BY ATC.

Narrative: DURING DEP FROM SAN JOSE, WAS AT ASSIGNED ALT OF 5000 FT. WHEN RPTING TO NEXT SECTOR, CTLR ADVISED TFC, AND TO MAINTAIN 7000 FT. READ BACK 7000 FT AND BEGAN CLB. CTLR THEN ASKED ALT AND I RPTED 6000 FT. CTLR ASKED WHAT ALT I WAS ASSIGNED AND I REITERATED 7000 FT AND RPTED TFC IN SIGHT. TCAD DID NOT GO OFF (ALERT) SO I DON'T THINK THERE WAS LIKELY A SEPARATION CONFLICT. HOWEVER, I THINK THE CTLR ERRED IN THE ASSIGNMENT OF 7000 FT.

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 flying a piper single engine aircraft from sjc failed to maintain altitude as assigned by ATC.