<< >> NASA ASRS Report 336840, May 1996

A corporate jet flight crew failed to level at their assigned altitude. The altitude was overshot 500 ft before the flight crew returned to the correct altitude.

Attributes
ACN	336840
Time
Date	199605
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : rfd
State Reference	IL
Altitude	msl bound lower : 8000 msl bound upper : 8500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : rfd
Operator	general aviation : corporate
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 80 flight time total : 8800 flight time type : 60
ASRS Report	336840
Person 2
Affiliation	Other
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	altitude deviation : overshoot non adherence : clearance
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : returned to intended course or assigned course other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Cleared to climb and maintain 8000 ft with rockford approach control. My mind was preoccupied with other non flight related thoughts. Our sops require both crew members to respond to the 1000 ft altitude alerter chime with verbal acknowledgement of altitude passing through, level off altitude. Altitude alerter set properly, and flight director set and armed for altitude capture. Both crew members missed the 1000 ft call. PNF warned me after passing through 8000 ft. Rockford approach also warned as we were nearing 8500 ft as I was correcting back to 8000 ft. Complacency, preoccupation with non-flight related issues, not focused on flight parameters, not adhering to our sops -- these were the issues that caused this altitude bust.

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Original NASA ASRS Text

Title: A CORPORATE JET FLC FAILED TO LEVEL AT THEIR ASSIGNED ALT. THE ALT WAS OVERSHOT 500 FT BEFORE THE FLC RETURNED TO THE CORRECT ALT.

Narrative: CLRED TO CLB AND MAINTAIN 8000 FT WITH ROCKFORD APCH CTL. MY MIND WAS PREOCCUPIED WITH OTHER NON FLT RELATED THOUGHTS. OUR SOPS REQUIRE BOTH CREW MEMBERS TO RESPOND TO THE 1000 FT ALT ALERTER CHIME WITH VERBAL ACKNOWLEDGEMENT OF ALT PASSING THROUGH, LEVEL OFF ALT. ALT ALERTER SET PROPERLY, AND FLT DIRECTOR SET AND ARMED FOR ALT CAPTURE. BOTH CREW MEMBERS MISSED THE 1000 FT CALL. PNF WARNED ME AFTER PASSING THROUGH 8000 FT. ROCKFORD APCH ALSO WARNED AS WE WERE NEARING 8500 FT AS I WAS CORRECTING BACK TO 8000 FT. COMPLACENCY, PREOCCUPATION WITH NON-FLT RELATED ISSUES, NOT FOCUSED ON FLT PARAMETERS, NOT ADHERING TO OUR SOPS -- THESE WERE THE ISSUES THAT CAUSED THIS ALT BUST.

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.