NTSB Identification: DEN91LA117.
The docket is stored on NTSB microfiche number 43944.
Accident occurred Saturday, August 17, 1991 in SEAGRAVES, TX
Probable Cause Approval Date: 03/31/1993
Aircraft: PIPER PA-25-150, registration: N6261Z
Injuries: 1 Minor.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

WHILE CONDUCTING FORMATION AERIAL APPLICATION, CONTROL OF THE AIRCRAFT WAS LOST DURING AN ENCOUNTER WITH WAKE TURBULENCE FROM THE LEAD AIRCRAFT. ALTITUDE WAS INSUFFICIENT TO EFFECT RECOVERY.

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

THE PILOT'S IMPROPER INFLIGHT PLANNING WHICH RESULTED IN LOSS OF AIRCRAFT CONTROL DUE TO WAKE TURBULENCE.

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