NTSB Identification: FTW85FA014.
The docket is stored on NTSB microfiche number 26810.
Accident occurred Tuesday, October 16, 1984 in SEGUIN, TX
Aircraft: PIPER PA-23-170, registration: N1094P
Injuries: 4 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.

SHORTLY AFTER TAKEOFF, ACFT RETURNED WITH AN UNKNOWN ENGINE PROBLEM. LEFT ENGINE WAS FEATHERED AND GEAR PARTIALLY EXTENDED. ACFT TOO HIGH ON FINAL TO LAND, ACFT CONTINUED DOWN RWY, DESCENDING AND SLOWING DOWN. WITNESS SAID ACFT ENTERED A VMC ROLL AND DOVE INTO THE GROUND. BURST HYDRAULIC LINE WAS FOUND ON LEFT ENGINE. WITNESSES DISAGREE WHETHER PLT REPORTED ERRATIC OIL PRESSURE. NO EVIDENCE OF OIL SYSTEM FAILURE WAS FOUND. LAST ACFT ANNUAL INSPECTION WAS COMPLETED 1 FLT HR BEFORE ACCIDENT OCCURRED.

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

IN-FLIGHT PLANNING/DECISION..IMPROPER..PILOT IN COMMAND

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

AIRSPEED(VMC)..NOT MAINTAINED..PILOT IN COMMAND


Contributing Factors

HYDRAULIC SYSTEM,LINE..BURST


Contributing Factors

MAINTENANCE,INSPECTION..INADEQUATE..OTHER MAINTENANCE PERSONNEL


Contributing Factors

PROPELLER FEATHERING..PERFORMED..PILOT IN COMMAND

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