<< >> NASA ASRS Report 426510, January 1999

An air carrier B727-200 flight crew distraction WX avoidance had an altitude deviation altitude overshot.

Attributes
ACN	426510
Time
Date	199901
Day	Thu
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : cou
State Reference	MO
Altitude	msl bound lower : 29000 msl bound upper : 29300
Environment
Flight Conditions	IMC
Light	Night
Aircraft 1
Controlling Facilities	tower : ord
Operator	common carrier : air carrier
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : flight engineer
Experience	flight time last 90 days : 200 flight time total : 13200 flight time type : 7100
ASRS Report	426510
Person 2
Affiliation	company : air carrier
Function	flight crew : second officer
Qualification	pilot : flight engineer
Experience	flight time last 90 days : 150 flight time total : 2500 flight time type : 700
ASRS Report	426732
Events
Anomaly	altitude deviation : overshoot non adherence : far
Independent Detector	other flight crewa
Consequence	Other
Supplementary
Air Traffic Incident	Pilot Deviation

Narrative:

I was PNF, copilot was flying. We were busy detouring around thunderstorms and making altitude changes due to turbulence. Got cleared to climb to FL290. At around FL280, I began pointing out some WX on the radar to rest of crew. I was successful in distracting copilot. We climbed through FL290 to FL293 momentarily, then returned. Lesson: focus on leveloff during last 1000 ft after altitude alert sounds. Supplemental information from acn 426732: need to maintain focus on aircraft control during climbs and dscnts to assigned altitudes.

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Original NASA ASRS Text

Title: AN ACR B727-200 FLC DISTR WX AVOIDANCE HAD AN ALTDEV ALT OVERSHOT.

Narrative: I WAS PNF, COPLT WAS FLYING. WE WERE BUSY DETOURING AROUND TSTMS AND MAKING ALT CHANGES DUE TO TURB. GOT CLRED TO CLB TO FL290. AT AROUND FL280, I BEGAN POINTING OUT SOME WX ON THE RADAR TO REST OF CREW. I WAS SUCCESSFUL IN DISTRACTING COPLT. WE CLBED THROUGH FL290 TO FL293 MOMENTARILY, THEN RETURNED. LESSON: FOCUS ON LEVELOFF DURING LAST 1000 FT AFTER ALT ALERT SOUNDS. SUPPLEMENTAL INFO FROM ACN 426732: NEED TO MAINTAIN FOCUS ON ACFT CTL DURING CLBS AND DSCNTS TO ASSIGNED ALTS.

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.