Pilot of air ambulance, distraction by turbulence encounter, overshoots descent altitude.

Attributes
ACN	148088
Time
Date	199006
Day	Thu
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : gnv airport : gvn
State Reference	FL
Altitude	msl bound lower : 6700 msl bound upper : 7000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air taxi
Make Model Name	Small Transport, Low Wing, 2 Turboprop Eng
Flight Phase	descent other
Route In Use	enroute airway : zjx
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : captain
Qualification	pilot : commercial pilot : instrument
Experience	flight time last 90 days : 50 flight time total : 3700
ASRS Report	148088
Person 2
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Events
Anomaly	altitude deviation : overshoot inflight encounter : weather non adherence : published procedure
Independent Detector	other flight crewa
Resolutory Action	flight crew : returned to intended course or assigned course
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Descending into gnv, I was cleared to 7000' from an altitude of 15000', if I remember correctly. I overshot the 7000' altitude by 300'. I promptly corrected to my assigned altitude. Factors that contributed to this mistake are summertime turbulence. Attention at that time was primarily given to slowing the aircraft to penetrate turbulent air at the lower altitude. Also lack of attention given to the assigned altitude by both crew members. Corrective action to prevent recurrence has been a better awareness of ATC instructions by both crew members.

Original NASA ASRS Text

Title: PLT OF AIR AMBULANCE, DISTR BY TURBULENCE ENCOUNTER, OVERSHOOTS DESCENT ALT.

Narrative: DSNDING INTO GNV, I WAS CLRED TO 7000' FROM AN ALT OF 15000', IF I REMEMBER CORRECTLY. I OVERSHOT THE 7000' ALT BY 300'. I PROMPTLY CORRECTED TO MY ASSIGNED ALT. FACTORS THAT CONTRIBUTED TO THIS MISTAKE ARE SUMMERTIME TURB. ATTN AT THAT TIME WAS PRIMARILY GIVEN TO SLOWING THE ACFT TO PENETRATE TURBULENT AIR AT THE LOWER ALT. ALSO LACK OF ATTN GIVEN TO THE ASSIGNED ALT BY BOTH CREW MEMBERS. CORRECTIVE ACTION TO PREVENT RECURRENCE HAS BEEN A BETTER AWARENESS OF ATC INSTRUCTIONS BY BOTH CREW MEMBERS.

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.