<< >> NASA ASRS Report 261028, January 1994

Altitude bust.

Attributes
ACN	261028
Time
Date	199401
Day	Mon
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : slc
State Reference	UT
Altitude	msl bound lower : 8000 msl bound upper : 8700
Environment
Flight Conditions	Marginal
Light	Night
Aircraft 1
Controlling Facilities	tracon : slc tower : orh
Operator	common carrier : air carrier
Make Model Name	SA-227 AC Metro III
Operating Under FAR Part	Part 135
Flight Phase	climbout : intermediate altitude
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : cfi
Experience	flight time last 90 days : 110 flight time total : 4400 flight time type : 1400
ASRS Report	261028
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	altitude deviation : overshoot non adherence : far non adherence : clearance other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Just departed slc and issued a heading of 280 degrees and climb to 8000 ft. The first officer was flying and I was on the radios. Leaving approximately 7000 ft I had my attention inside the cockpit when the first officer said 'we've got some precipitation,' or words to that effect. I then looked out to confirm this and then looked back inside to turn on all of the de- ice/anti-ice that wasn't already on. I monitored for a moment to insure that it was all working and then (light was already on) looked out at the wings to check for accumulation. As I turned my head back in to check our position, the first officer said 'oh no' and pushed on the yoke to start a descent. We topped out at 8700 ft, 700 ft high. As he pushed he also reached up and turned the mode C off in hopes that we wouldn't get 'caught.' I allowed this because I kind of hoped it too. As we leveled at 8000 ft the controller issued a climb clearance and no mention was made of our 'bust.' the first officer and I were both new to our seats.

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Original NASA ASRS Text

Title: ALT BUST.

Narrative: JUST DEPARTED SLC AND ISSUED A HDG OF 280 DEGS AND CLB TO 8000 FT. THE FO WAS FLYING AND I WAS ON THE RADIOS. LEAVING APPROX 7000 FT I HAD MY ATTN INSIDE THE COCKPIT WHEN THE FO SAID 'WE'VE GOT SOME PRECIPITATION,' OR WORDS TO THAT EFFECT. I THEN LOOKED OUT TO CONFIRM THIS AND THEN LOOKED BACK INSIDE TO TURN ON ALL OF THE DE- ICE/ANTI-ICE THAT WASN'T ALREADY ON. I MONITORED FOR A MOMENT TO INSURE THAT IT WAS ALL WORKING AND THEN (LIGHT WAS ALREADY ON) LOOKED OUT AT THE WINGS TO CHK FOR ACCUMULATION. AS I TURNED MY HEAD BACK IN TO CHK OUR POS, THE FO SAID 'OH NO' AND PUSHED ON THE YOKE TO START A DSCNT. WE TOPPED OUT AT 8700 FT, 700 FT HIGH. AS HE PUSHED HE ALSO REACHED UP AND TURNED THE MODE C OFF IN HOPES THAT WE WOULDN'T GET 'CAUGHT.' I ALLOWED THIS BECAUSE I KIND OF HOPED IT TOO. AS WE LEVELED AT 8000 FT THE CTLR ISSUED A CLB CLRNC AND NO MENTION WAS MADE OF OUR 'BUST.' THE FO AND I WERE BOTH NEW TO OUR SEATS.

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.