NTSB Identification: CHI94FA263.
The docket is stored in the Docket Management System (DMS). Please contact Records Management Division
Accident occurred Tuesday, August 02, 1994 in DECATUR, NE
Probable Cause Approval Date: 08/01/1995
Aircraft: PIPER PA-25, registration: N6440Z
Injuries: 2 Fatal,1 Serious.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

A WITNESS REPORTED THAT THE AIRPLANE TOOK OFF TO THE SOUTH AND CLIMBED ABOVE THE LEVEL OF THE SURROUNDING CORNFIELD. THE WITNESS SAID THAT THE AIRPLANE THEN MADE A SHARP RIGHT TURN AND DROPPED INTO THE FIELD. A POSTACCIDENT FIRE ENSUED. THE PILOT AND A PASSENGER OF THE SINGLE-SEAT AIRCRAFT WERE FATALLY INJURED. THE PILOT'S MOTHER WITNESSED THE ACCIDENT; SHE RECEIVED 2ND AND THIRD DEGREE BURNS WHEN SHE ATTEMPTED A RESCUE. A HORIZONTAL IMPRESSION OF THE SPINNER AND PROPELLER WAS LOCATED IN THE SOIL ABOUT 2 FEET IN FRONT OF THE NOSE. THE METAL, FIXED-PITCH PROPELLER WAS SLIGHTLY BENT WITH NO EVIDENCE OF TORSIONAL BENDING AND NO CHORDWISE SCRATCHES. DURING AN EXAMINATION OF THE WRECKAGE, NO PREIMPACT MECHANICAL FAILURE WAS FOUND. DURING A TOXICOLOGY TEST OF THE PILOT'S BLOOD, A LOW LEVEL (0.002 UG/ML) OF TETRAHYDROCANNABINOL CARBOXYLIC ACID (MARIJUANA) WAS DETECTED. TESTS OF HIS URINE DETECTED 0.033 UG/ML OF TETRAHYDROCANNABINOL CARBOXYLIC ACID, 0.109 UG/ML OF METHAMPHETAMINE, AND 0.207 UG/ML OF AMPHETAMINE.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

LOSS OF ENGINE POWER FOR AN UNDETERMINED REASON, AND FAILURE OF THE PILOT TO MAINTAIN ADEQUATE AIRSPEED, WHICH RESULTED IN AN INADVERTENT STALL.

Full narrative available

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