NTSB Identification: FTW87FA123.
The docket is stored on NTSB microfiche number 35386.
Accident occurred Friday, May 22, 1987 in PORTER, OK
Probable Cause Approval Date: 11/08/1988
Aircraft: PIPER PA-32R-301, registration: N81796
Injuries: 2 Fatal.

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.

ACFT WAS OBSERVED IN A RT BANK WHEN IT EXPERIENCED AN INFLT BREAKUP. BOTH WINGS, VERT STAB AND RUDDER, AND THE HORZ STAB AND TRIM TAB SEPARATED PRIOR TO IMPACT. WX WAS DARK NIGHT WITH SCATTERED TO BROKEN CLOUD COVER, BUT VFR. ALTHOUGH A WX RPT 33 NM NORTHWEST OF THE SITE LISTED THE WX AS 10,000 SCT, 25,000 OVC, A GROUND WITNESS STATED THAT IT WAS CLOUDY, BUT THAT HE COULD SEE SOME STARS BETWEEN THE CLOUDS. THE NON-INSTRUMENT RATED PVT PLT, WHO HAD CHECKED OUT IN THE ACFT THAT DAY, HAD BEEN RESTRICTED FROM NIGHT FLIGHT DUE TO NON-COMPLIANCE WITH FAR 61.109 (MINIMUM NIGHT TIME) WHEN HE RECEIVED HIS PVT CERT. INSTRUCTOR HAD WARNED HIM NOT TO ATTEMPT TO FLY SOLO AT NIGHT. ALL SEPARATION FRACTURES WERE OVERSTRESS. RT WING WAS STRUCK BY THE LFT WING AFTER IT SEPARATED IN A NEGATIVE MANNER. PLT HAD 2 HRS DUAL NIGHT LOGGED SEVERAL MONTHS PRIOR TO THE ACCIDENT AND ABOUT 45 MINS SOLO ON THE ACCIDENT FLT.

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

VFR FLIGHT INTO IMC..INADVERTENT..PILOT IN COMMAND

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

DESIGN STRESS LIMITS OF AIRCRAFT..EXCEEDED..PILOT IN COMMAND

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

SPATIAL DISORIENTATION..PILOT IN COMMAND


Contributing Factors

WEATHER CONDITION..CLOUDS


Contributing Factors

PREFLIGHT PLANNING/PREPARATION..INADEQUATE..PILOT IN COMMAND


Contributing Factors

INADEQUATE TRAINING..PILOT IN COMMAND


Contributing Factors

LIGHT CONDITION..DARK NIGHT


Contributing Factors

LACK OF RECENT EXPERIENCE IN TYPE OPERATION..PILOT IN COMMAND

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