<< >> NASA ASRS Report 152498, July 1990

IMC in VFR flight without ATC clearance. Engine failure in heavy rain and emergency declared with resultant precautionary landing.

Attributes
ACN	152498
Time
Date	199007
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : msn
State Reference	WI
Altitude	msl bound lower : 6000 msl bound upper : 9500
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Fixed Gear
Flight Phase	cruise other cruise other
Route In Use	enroute airway : zau
Flight Plan	None
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private pilot : instrument
Experience	flight time last 90 days : 50 flight time total : 3000 flight time type : 150
ASRS Report	152498
Person 2
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Events
Anomaly	aircraft equipment problem : critical inflight encounter : weather inflight encounter : vfr in imc non adherence : clearance non adherence : far other anomaly other
Independent Detector	other flight crewa
Resolutory Action	aircraft : equipment problem dissipated flight crew : overcame equipment problem other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

VFR scud running, closed in. Saw sucker hole to climb above into layers. Layers closed in. Unable to obtain IFR clearance until into IMC. Got clearance 10 mins into IMC after clearance, flew into heavy rain which caused engine to quit. Suspect water clogged air box. Declared emergency. Regained power at 6000'. Made precautionary landing.

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Original NASA ASRS Text

Title: IMC IN VFR FLT WITHOUT ATC CLRNC. ENGINE FAILURE IN HEAVY RAIN AND EMERGENCY DECLARED WITH RESULTANT PRECAUTIONARY LNDG.

Narrative: VFR SCUD RUNNING, CLOSED IN. SAW SUCKER HOLE TO CLB ABOVE INTO LAYERS. LAYERS CLOSED IN. UNABLE TO OBTAIN IFR CLRNC UNTIL INTO IMC. GOT CLRNC 10 MINS INTO IMC AFTER CLRNC, FLEW INTO HEAVY RAIN WHICH CAUSED ENG TO QUIT. SUSPECT WATER CLOGGED AIR BOX. DECLARED EMER. REGAINED PWR AT 6000'. MADE PRECAUTIONARY LNDG.

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.