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ASN Wikibase Occurrence # 35182
Last updated: 20 June 2020
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Date:27-MAY-1990
Time:10:34
Type:Silhouette image of generic PA46 model; specific model in this crash may look slightly different
Piper PA-46-310P Malibu
Owner/operator:private
Registration: N22EK
C/n / msn: 46-8508024
Fatalities:Fatalities: 2 / Occupants: 2
Other fatalities:0
Aircraft damage: Written off (damaged beyond repair)
Category:Accident
Location:Naylor, MO -   United States of America
Phase: En route
Nature:Private
Departure airport:Sewanee, TN (UOS)
Destination airport:Springfield, MO (SGF)
Investigating agency: NTSB
Narrative:
AFTER TKOF, THE PLT RCVD PROGRESSIVE ALT CLNCS TO FL200. WHILE CRUISING AT FL200, HE RPRTD 'MODERATE CHOP.' AT ABT 1125 CDT, HE REQD & RCVD CLNC TO FL220. ABT 3 MIN LTR, HE INQUIRED ABT CLD TOPS & SAID HE WAS 'IN A LAYER RIGHT NOW AT ABOUT FLIGHT LEVEL 200 TO 210.' SOON THEREAFTER, THE ACFT BGN ALT DEVIATIONS & WENT ABV THE ASSIGNED ALT OF FL220 (22,000'). IT THEN DSCNDD TO ABT 20,500', WHERE IT PITCHED UP TO AN ALT OF ABT 23,000'. THE ACFT THEN WENT INTO A STEEP DSCNT. SUBSEQUENTLY, AN IN-FLT BREAKUP OF THE ACFT OCCURRED AT ABT THE TIME IT EMERGED FM THE CLDS NR THE 2000 FT LVL. PIECES OF WRECKAGE WERE FND over A WIDE AREA. THE LEFT WING WAS FND ABT .2 MI FM THE FUSELAGE; PIECES OF THE RUDDER & STABILIZERS WERE FND ABT 100 YDS FM THE FUSELAGE. AN EXAM OF THE FRACTURES ON MAJOR STRUCTURAL COMPONENTS REVEALED FEATURES TYPICAL OF OVERSTRESS SEPN. NO PREEXISTING CRACKS WERE FND. AN AREA FORECAST HAD FLT PRCTNS FOR IFR, TSTMS, ICING IN THE VCNTY OF CONVECTIVE ACTIVITY. THE PITOT HEAT SW WAS FND IN THE 'OFF' PSN. (SEE: NTSB/SIR-92/03) CAUSE: THE PILOT'S FAILURE TO ACTIVATE THE PITOT HEAT BEFORE FLYING IN INSTRUMENT METEOROLOGICAL CONDITIONS (IMC) ABOVE THE FREEZING LEVEL, FOLLOWED BY HIS IMPROPER RESPONSE TO ERRONEOUS AIRSPEED INDICATIONS THAT RESULTED FROM BLOCKAGE OF THE PITOT TUBE BY ATMOSPHERIC ICING.

Sources:

NTSB: https://www.ntsb.gov/ntsb/brief.asp?ev_id=20001212X23248


Revision history:

Date/timeContributorUpdates
24-Oct-2008 10:30 ASN archive Added

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