<< >> NASA ASRS Report 1115379, September 2013

An air carrier took evasive action from a large unmanned balloon trailing a 5 foot square metal object while on vectors at 4;700 ft; 7 miles from sbgr (gru) runway 9R.

Attributes
ACN	1115379
Time
Date	201309
Local Time Of Day	0601-1200
Place
Locale Reference	SBGR.TRACON
State Reference	FO
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	B777-200
Operating Under FAR Part	Part 121
Flight Phase	Final Approach
Route In Use	Vectors
Flight Plan	IFR
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 150 Flight Crew Total 20000 Flight Crew Type 6000
Events
Anomaly	Conflict Airborne Conflict Deviation - Track / Heading All Types

Narrative:

At 4;700 feet on vectors to intercept ILS 9R at gru about 7 miles from the airport. We saw an object at 12 o'clock. I immediately turn the airplane to the right to miss the object. As we passed the object it appeared to be some sort of balloon. It was black in color; cylindrical in shape; approximately 20-30 ft tall and 5-10 ft wide. Hanging 10 to 20 ft the balloon by rope or cable was a metal structure about 5 ft square.

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Original NASA ASRS Text

Title: An air carrier took evasive action from a large unmanned balloon trailing a 5 foot square metal object while on vectors at 4;700 FT; 7 miles from SBGR (GRU) Runway 9R.

Narrative: At 4;700 feet on vectors to intercept ILS 9R at GRU about 7 miles from the airport. We saw an object at 12 o'clock. I immediately turn the airplane to the right to miss the object. As we passed the object it appeared to be some sort of balloon. It was black in color; cylindrical in shape; approximately 20-30 FT tall and 5-10 FT wide. Hanging 10 to 20 FT the balloon by rope or cable was a metal structure about 5 FT square.

Data retrieved from NASA's ASRS site as of July 2013 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.