Large transport balloons above assigned altitude at level off.

Attributes
ACN	330630
Time
Date	199603
Day	Tue
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : syr
State Reference	NY
Altitude	msl bound lower : 28000 msl bound upper : 28400
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	artcc : zbw
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	cruise other
Route In Use	enroute : direct
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : flight engineer pilot : cfi pilot : atp
Experience	flight time last 90 days : 120 flight time total : 7000 flight time type : 400
ASRS Report	330630
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	altitude deviation : excursion from assigned altitude altitude deviation : overshoot
Independent Detector	other flight crewa
Resolutory Action	flight crew : returned to intended course or assigned course
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Ballooned 400 ft above level off altitude for approximately 5 seconds. Immediately returned to FL280.

Original NASA ASRS Text

Title: LGT BALLOONS ABOVE ASSIGNED ALT AT LEVEL OFF.

Narrative: BALLOONED 400 FT ABOVE LEVEL OFF ALT FOR APPROX 5 SECONDS. IMMEDIATELY RETURNED TO FL280.

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.