<< >> NASA ASRS Report 326559, January 1996

The flight crew climbed through their FL190 assigned altitude to 19250 ft and the controller caught the error before the pilots got the aircraft back to their assigned altitude. The time above FL190 was about 12 seconds.

Attributes
ACN	326559
Time
Date	199601
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : sby
State Reference	MD
Altitude	msl bound lower : 19000 msl bound upper : 19250
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zdc
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 400 flight time total : 21000 flight time type : 4500
ASRS Report	326559
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : atp
Experience	flight time last 90 days : 100 flight time total : 11000 flight time type : 500
ASRS Report	326440
Events
Anomaly	altitude deviation : overshoot non adherence : clearance
Independent Detector	other flight crewa
Resolutory Action	flight crew : returned to intended course or assigned course flight crew : became reoriented other
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

While flying towards sby VOR about 45 DME north climbing to FL190, the airplane overshot the altitude by 250 ft for 10 seconds when corrective action was taken. Plane releveled at FL190, autoplt not in use. The controller in ZDC noted the overshoot on one sweep of the screen. He said he had traffic at FL200 10 mi away. On next sweep of scope we showed level at FL190. Total duration of overshoot about 12 seconds. Captain was flying the aircraft at the time of incident.

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Original NASA ASRS Text

Title: THE FLC CLBED THROUGH THEIR FL190 ASSIGNED ALT TO 19250 FT AND THE CTLR CAUGHT THE ERROR BEFORE THE PLTS GOT THE ACFT BACK TO THEIR ASSIGNED ALT. THE TIME ABOVE FL190 WAS ABOUT 12 SECONDS.

Narrative: WHILE FLYING TOWARDS SBY VOR ABOUT 45 DME N CLBING TO FL190, THE AIRPLANE OVERSHOT THE ALT BY 250 FT FOR 10 SECONDS WHEN CORRECTIVE ACTION WAS TAKEN. PLANE RELEVELED AT FL190, AUTOPLT NOT IN USE. THE CTLR IN ZDC NOTED THE OVERSHOOT ON ONE SWEEP OF THE SCREEN. HE SAID HE HAD TFC AT FL200 10 MI AWAY. ON NEXT SWEEP OF SCOPE WE SHOWED LEVEL AT FL190. TOTAL DURATION OF OVERSHOOT ABOUT 12 SECONDS. CAPT WAS FLYING THE ACFT AT THE TIME OF INCIDENT.

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.