Private pilot of an small aircraft sel aircraft momentarily lost control of aircraft and when entering IMC resulting in deviating from assigned altitude and heading.

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Attributes
ACN	252696
Time
Date	199309
Day	Mon
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : hpn
State Reference	NY
Altitude	msl bound lower : 2000 msl bound upper : 3000
Environment
Flight Conditions	Mixed
Light	Night
Aircraft 1
Controlling Facilities	tracon : n90 tower : msp
Operator	general aviation : personal
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Retractable Gear
Flight Phase	cruise other descent other
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private pilot : instrument
Experience	flight time last 90 days : 125 flight time total : 5000 flight time type : 3500
ASRS Report	252696
Person 2
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Events
Anomaly	altitude deviation : excursion from assigned altitude inflight encounter : weather non adherence : clearance other anomaly other anomaly other other spatial deviation
Independent Detector	atc equipment other atc equipment : unspecified other controllera
Resolutory Action	controller : issued new clearance flight crew : regained aircraft control other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Aircraft was returning to home base at XA15 hours in VFR conditions. Approximately 4 mi east of white plains at 2500 ft MSL, conditions quickly deteriorated, requiring IFR clearance. Upon clearance being issued clearance to 'direct carmel' (VORTAC) aircraft entered IMC and began climb to 3000 ft in steep turn. Controller at ny TRACON stated that altitude given was 2000 ft. Aircraft began descent to 2000 ft, whereupon controller indicated that turn to 340 degrees had also been issued. Turn to 270 degrees issued and aircraft initiated turn to 270 degree heading, intercepted final approach course and landed. Human performance conditions: pilot fatigue, extensive workload due to hand flying aircraft in IMC conditions in steep turn.

Original NASA ASRS Text

Title: PVT PLT OF AN SMA SEL ACFT MOMENTARILY LOST CTL OF ACFT AND WHEN ENTERING IMC RESULTING IN DEVIATING FROM ASSIGNED ALT AND HDG.

Narrative: ACFT WAS RETURNING TO HOME BASE AT XA15 HRS IN VFR CONDITIONS. APPROX 4 MI E OF WHITE PLAINS AT 2500 FT MSL, CONDITIONS QUICKLY DETERIORATED, REQUIRING IFR CLRNC. UPON CLRNC BEING ISSUED CLRNC TO 'DIRECT CARMEL' (VORTAC) ACFT ENTERED IMC AND BEGAN CLB TO 3000 FT IN STEEP TURN. CTLR AT NY TRACON STATED THAT ALT GIVEN WAS 2000 FT. ACFT BEGAN DSCNT TO 2000 FT, WHEREUPON CTLR INDICATED THAT TURN TO 340 DEGS HAD ALSO BEEN ISSUED. TURN TO 270 DEGS ISSUED AND ACFT INITIATED TURN TO 270 DEG HDG, INTERCEPTED FINAL APCH COURSE AND LANDED. HUMAN PERFORMANCE CONDITIONS: PLT FATIGUE, EXTENSIVE WORKLOAD DUE TO HAND FLYING ACFT IN IMC CONDITIONS IN STEEP TURN.

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.