Summary
On April 04, 1993, a Beech B-55 (N4167P) was involved in an incident near Green Bay, WI. All 1 person aboard were uninjured. The aircraft sustained substantial damage.
The National Transportation Safety Board determined the probable cause of this incident to be: Improper replacement of the right wing by maintenance personnel which resulted in the vapor return lines being reversed, and the auxiliary tank vent to be disconnected.
On April 3, 1993, at 1815 central standard time, a Beech B-55, N4167P, sustained substantial damage when the outboard section of the right wing exploded as the pilot started the right engine. The mishap occurred at Austin Straubel Field, Green Bay, Wisconsin. The commercial pilot was not injured. The personal flight was originating at Green Bay, with an intended destination of Rockford, Illinois. No flight plan was filed, and visual meteorological conditions prevailed at the time.
The pilot stated he had flown from Rockford, Illinois, to Green Bay using the main fuel tanks. During the preflight inspection for the return trip, he said he noticed that the right auxiliary tank was overfilled.
This incident is documented in NTSB report CHI93LA130. AviatorDB cross-references NTSB investigation data with FAA registry records to provide comprehensive safety information for aircraft N4167P.
Accident Details
Probable Cause and Findings
Improper replacement of the right wing by maintenance personnel which resulted in the vapor return lines being reversed, and the auxiliary tank vent to be disconnected.
Aircraft Information
Registered Owner (Current)
Analysis
On April 3, 1993, at 1815 central standard time, a Beech B-55, N4167P, sustained substantial damage when the outboard section of the right wing exploded as the pilot started the right engine. The mishap occurred at Austin Straubel Field, Green Bay, Wisconsin. The commercial pilot was not injured. The personal flight was originating at Green Bay, with an intended destination of Rockford, Illinois. No flight plan was filed, and visual meteorological conditions prevailed at the time.
The pilot stated he had flown from Rockford, Illinois, to Green Bay using the main fuel tanks. During the preflight inspection for the return trip, he said he noticed that the right auxiliary tank was overfilled. The examination of the wing and fuel system revealed the fuel return lines for the main tank and auxiliary tank on the right wing were reversed. A vent line connection for the right auxiliary tank was found unconnected.
The airplane had been recently painted. Both wings had been removed and replaced during the painting. The airplane had flown three hours since the post-painting inspection.
Data Source
Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# CHI93LA130