An LR35 approaching mcn was at assigned altitude and deviated from altitude prior to canceling IFR c...

Attributes
ACN	424880
Time
Date	199901
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : mcn
State Reference	GA
Altitude	msl bound lower : 2000 msl bound upper : 3000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Learjet 25
Flight Phase	descent other landing other
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Experience	flight time last 90 days : 120 flight time total : 3100 flight time type : 450
ASRS Report	424880
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	altitude deviation : excursion from assigned altitude non adherence : far other anomaly other
Independent Detector	other controllera
Resolutory Action	other other
Consequence	Other
Supplementary
Air Traffic Incident	Pilot Deviation

Narrative:

Approaching mcn we were being vectored to a visual approach to runway 31. I was the PNF working the radios. We were on a vector of 190 degrees and were told to descend to 3000 ft. After some time, we were told to turn to a heading of 130 degrees (away from the airport). The PF was very angry with that assignment. He complied, but at the same time told me to advise ATC that we wanted to cancel and switch to the tower frequency. Prior to getting our release from ATC, the PF descended below 3000 ft to 2000 ft. When queried by ATC, the captain answered back that we wanted to cancel and switched to tower. I believe this entire incident was caused by a hot tempered pilot.

Original NASA ASRS Text

Title: AN LR35 APCHING MCN WAS AT ASSIGNED ALT AND DEVIATED FROM ALT PRIOR TO CANCELING IFR CLRNC.

Narrative: APCHING MCN WE WERE BEING VECTORED TO A VISUAL APCH TO RWY 31. I WAS THE PNF WORKING THE RADIOS. WE WERE ON A VECTOR OF 190 DEGS AND WERE TOLD TO DSND TO 3000 FT. AFTER SOME TIME, WE WERE TOLD TO TURN TO A HDG OF 130 DEGS (AWAY FROM THE ARPT). THE PF WAS VERY ANGRY WITH THAT ASSIGNMENT. HE COMPLIED, BUT AT THE SAME TIME TOLD ME TO ADVISE ATC THAT WE WANTED TO CANCEL AND SWITCH TO THE TWR FREQ. PRIOR TO GETTING OUR RELEASE FROM ATC, THE PF DSNDED BELOW 3000 FT TO 2000 FT. WHEN QUERIED BY ATC, THE CAPT ANSWERED BACK THAT WE WANTED TO CANCEL AND SWITCHED TO TWR. I BELIEVE THIS ENTIRE INCIDENT WAS CAUSED BY A HOT TEMPERED PLT.

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.

An LR35 approaching mcn was at assigned altitude and deviated from altitude prior to canceling IFR clearance.