N11TPBEECH 70 1989-08-02 NTSB Accident Report

Destroyed
Fatal

BEECH 70 S/N: LB-12

Summary

On August 02, 1989, a Beech 70 (N11TP) was involved in an accident near Albany, GA. The accident resulted in 6 fatal injuries. The aircraft was destroyed.

The National Transportation Safety Board determined the probable cause of this accident to be: THE FATIGUE FAILURE OF THE SUPERCHARGER INTERMEDIATE DRIVE GEAR SHAFT (GEAR TOOTH), WHICH RESULTED IN A PARTIAL LOSS OF POWER, AND THE PILOT'S INITIATION OF LIFT-OFF BEFORE REACHING VMC AIRSPEED. FACTORS RELATED TO THE ACCIDENT WERE: THE WORN INTERMEDIATE DRIVE GEAR SHAFT, THE PILOT'S OPERATION OF THE AIRCRAFT ABOVE ITS MAXIMUM CERTIFIED GROSS WEIGHT LIMIT, AND THE HIGH DENSITY ALTITUDE.

This accident is documented in NTSB report ATL89FA188. AviatorDB cross-references NTSB investigation data with FAA registry records to provide comprehensive safety information for aircraft N11TP.

Accident Details

Date
Wednesday, August 2, 1989
NTSB Number
ATL89FA188
Location
ALBANY, GA
Event ID
20001213X29022
Coordinates
31.589319, -84.210983
Aircraft Damage
Destroyed
Highest Injury
Fatal
Fatalities
6
Serious Injuries
0
Minor Injuries
0
Uninjured
0
Total Aboard
6

Probable Cause and Findings

THE FATIGUE FAILURE OF THE SUPERCHARGER INTERMEDIATE DRIVE GEAR SHAFT (GEAR TOOTH), WHICH RESULTED IN A PARTIAL LOSS OF POWER, AND THE PILOT'S INITIATION OF LIFT-OFF BEFORE REACHING VMC AIRSPEED. FACTORS RELATED TO THE ACCIDENT WERE: THE WORN INTERMEDIATE DRIVE GEAR SHAFT, THE PILOT'S OPERATION OF THE AIRCRAFT ABOVE ITS MAXIMUM CERTIFIED GROSS WEIGHT LIMIT, AND THE HIGH DENSITY ALTITUDE.

Aircraft Information

Registration
Make
BEECH
Serial Number
LB-12
Engine Type
Reciprocating
Model / ICAO
70 BE70
Aircraft Type
Fixed Wing Multi Engine
No. of Engines
2

Registered Owner (Historical)

Status
Deregistered
Country
United States

Data Source

Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# ATL89FA188