Cessna P-210N N4738A

Summary

On 12 April 1995 at about 14:58 local time, a Cessna P-210N registered N4738A was involved in an accident near Belle Plaine, Minnesota, United States. 3 people were on board and 3 died. The aircraft was destroyed. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

12 April 1995 at 14:58

Classification

Accident

Location

Belle Plaine, Minnesota, United States

Coordinates

44.6197, -93.7597

Aircraft

Cessna P-210N

Registration

N4738A

Category

Airplane

Engines

1

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

Eden Prairie → Jefferson Cnty

Aircraft damage

Destroyed

Weather

IMC

Light

Day

NTSB number

CHI95FA121

3 people died.

the failure to replace the deteriorated deicing boots, and the failure of the boots to operate when the airplane encountered icing condition. An additional causes were the pilot's failure to maintain adequate airspeed and the excessive pullup performed by the pilot during the uncontrolled descent.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full NTSB narrative

THE INSTRUMENT RATED PRIVATE PILOT DECLARED AN EMERGENCY DURING INITIAL CLIMBOUT IN ICING CONDITIONS. NO OTHER TRANSMISSIONS WERE RECEIVED AND THE AIRPLANE WAS LOST FROM ARTCC RADAR AT 7300 FEET MSL. THE LEFT WING AND BOTH HORIZONTAL STABILIZERS SEPARATED IN FLIGHT, EXHIBITING PERMANENT DEFORMATION SUPPORTING POSITIVE OVERLOAD (STABILIZERS DEFLECTED DOWN, MAIN WINGS DEFLECTED UP). ALL THREE EMPENNAGE DEICE BOOTS WERE FOUND TO HAVE NUMEROUS PATCHES, WHICH WOULD NOT HOLD NORMAL SYSTEM PRESSURE. THE SYSTEM REQUIRED THE EMPENNAGE TO HOLD PRESSURE BEFORE IT WOULD CYCLE TO THE MAIN WINGS. REPLACEMENT OF THE BOOTS HAD BEEN RECOMMENDED TO THE OWNERS 3 MONTHS PRIOR. WITNESSES WHO ARRIVED ON SCENE IMMEDIATELY AFTER THE ACCIDENT DESCRIBED ICE ON THE WINGS AND BOOTS.

Quoted verbatim from the NTSB record.