<< >> NASA ASRS Report 282293, September 1994

Altitude bust.

Attributes
ACN	282293
Time
Date	199409
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : yip
State Reference	MI
Altitude	msl bound lower : 4500 msl bound upper : 5000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : dtw
Operator	general aviation : corporate
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	other : unknown
Flight Phase	descent other
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 240 flight time total : 15000 flight time type : 3000
ASRS Report	282293
Person 2
Affiliation	Other
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	altitude deviation : overshoot non adherence : clearance non adherence other other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other controllera
Resolutory Action	flight crew : became reoriented 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:

During descent into yip we were cleared to descend to 5000 ft by dtw approach. As we were approaching the assigned altitude a TA was given to us with traffic at 10 O'clock (2 mi naturally our attention immediately turned to looking for the traffic and we descended through the altitude. When I heard the altitude alerter I immediately took corrective action and returned to the assigned altitude. During this time ATC was quite insistent that we communication with them regarding our altitude, assigned altitude and the issued traffic. I would suggest that if they suspect an altitude deviation (or any other deviation for that matter) that they point it out and then shut up for a min so we can resolve the problem without being distracted even further by ATC.

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Original NASA ASRS Text

Title: ALT BUST.

Narrative: DURING DSCNT INTO YIP WE WERE CLRED TO DSND TO 5000 FT BY DTW APCH. AS WE WERE APCHING THE ASSIGNED ALT A TA WAS GIVEN TO US WITH TFC AT 10 O'CLOCK (2 MI NATURALLY OUR ATTN IMMEDIATELY TURNED TO LOOKING FOR THE TFC AND WE DSNDED THROUGH THE ALT. WHEN I HEARD THE ALT ALERTER I IMMEDIATELY TOOK CORRECTIVE ACTION AND RETURNED TO THE ASSIGNED ALT. DURING THIS TIME ATC WAS QUITE INSISTENT THAT WE COM WITH THEM REGARDING OUR ALT, ASSIGNED ALT AND THE ISSUED TFC. I WOULD SUGGEST THAT IF THEY SUSPECT AN ALTDEV (OR ANY OTHER DEV FOR THAT MATTER) THAT THEY POINT IT OUT AND THEN SHUT UP FOR A MIN SO WE CAN RESOLVE THE PROB WITHOUT BEING DISTRACTED EVEN FURTHER BY ATC.

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.