Eipper Quicksiver E (MODIFIED) UNREG

Summary

On 24 September 1983 at about 15:23 local time, a Eipper Quicksiver E (MODIFIED) registered UNREG was involved in an accident near Sioux Falls, South Dakota, United States. One person was on board and one died. The aircraft was destroyed. No probable cause statement is available for this record.

Date

24 September 1983 at 15:23

Classification

Accident

Location

Sioux Falls, South Dakota, United States

Coordinates

Not recorded

Aircraft

Eipper Quicksiver E (MODIFIED)

Registration

UNREG

Category

Ultralight

Engines

1

Operator

Not recorded

Operating rule

Part 103: Ultralight

Purpose of flight

Unknown

Phase of flight

Not recorded

Route

Sioux Falls → Unknown

Aircraft damage

Destroyed

Weather

VMC

Light

Day

NTSB number

DEN83LU005

1 person died.

The NTSB has not published a probable cause for this record. No probable cause statement is present in the source data.

Nothing about the cause is stated here that is not in the source record.

Read the full NTSB narrative

AFTER TAKEOFF, THE PLT OF THE WEIGHT-SHIFT CONTROLLED, ULTRALIGHT VEHICLE ENTERED A STEEP CLIMB, THEN BEGAN A SERIES OF MANEUVERS WHICH INCLUDED PAST VERTICAL WINGOVERS. REPORTEDLY, ON HIS LAST MANEUVER, HE PERFORMED A WHIP STALL. A GROUND WITNESS STATED THAT DURING THE RECOVERY, HE 'PULLED IN TIGHT TO GET AN IMPRESSIVE DIVE.' A PLT WITNESS & 2 FAA INSPECTORS REPORTED THAT WHEN THE NOSE DROPPED, IT WENT PAST A VERTICAL POSITION. THE PLT WITNESS STATED THAT DURING THE RECOVERY, THE PLT HELD THE NOSE IN APRX A 60 DEG DIVE FOR 3 TO 4 SEC. THE FAA INSPECTORS REPORTED THAT DURING THE PULL-OUT, THE WINGS FAILED. AN EXAM REVEALED THAT THE LEFT & RIGHT INBOARD COMPRESSION STRUTS HAD BUCKLED FROM POSITIVE LOADING. THE PLT HAD MODIFIED THE ULTRALIGHT BY INSTALLING A NON-STANDARD ENG-PROP REDUCTION DRIVE SYS, BY CHANGING THE PITCH TRIM, BY ADDING A LOWER TAIL BOOM BRACE & BY ADDING A 10 LB WT TO THE NOSE TO INCREASE THE FORWARD SPEED IN A DIVE.

Quoted verbatim from the NTSB record.