Accident description
Last updated: 20 April 2014
Status:Final
Date:Monday 24 June 1974
Time:16:45 EDT
Type:Silhouette image of generic GLF2 model; specific model in this crash may look slightly different
Gulfstream Aerospace G-1159 Gulfstream II
Operator:IBM
Registration: N720Q
C/n / msn: 58
First flight: 1969
Total airframe hrs:3224
Engines: 2 Rolls-Royce Spey 511-8
Crew:Fatalities: 3 / Occupants: 3
Passengers:Fatalities: 0 / Occupants: 0
Total:Fatalities: 3 / Occupants: 3
Airplane damage: Damaged beyond repair
Location:Kline, SC (   United States of America) show on map
Phase: En route (ENR)
Nature:Training
Departure airport:Savannah International Airport, GA (SAV/KSAV), United States of America
Destination airport:Savannah International Airport, GA (SAV/KSAV), United States of America
Narrative:
An electrical short circuit caused an unwanted extension of the ground and flight spoilers during a training flight. Control was lost; the aircraft made several 360deg rolls and then dove into a swampy area.

PROBABLE CAUSE: "An unwanted extension of the ground and flight spoilers, which resulted in a loss of control at an altitude from which recovery could not be made. The ground spoilers probably deployed because of a hot electrical short in the spoiler extend circuitry. Whereas the spoilers probably deployed symetrically, the left ground spoiler actuator failed in flight and caused a loss of lateral control. The subsequent logs of pitch control was caused by the full nosedown elevator trim tab position and the high aircraft speed."

Sources:
» NTSB


Follow-up / safety actions

NTSB issued 1 Safety Recommendation

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Map
This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Savannah International Airport, GA to Savannah International Airport, GA as the crow flies is 0 km (0 miles).

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