Burkhart Grob G-103A TWIN II ACRO N855BG

Summary

On 26 November 2010 at about 20:55 local time, a Burkhart Grob G-103A TWIN II ACRO registered N855BG, operated by Sky Sailing Inc, was involved in an accident near Warner Springs, California, United States. 2 people were on board and nobody was injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

26 November 2010 at 20:55

Classification

Accident

Location

Warner Springs, California, United States

Nearest airport

Warner Springs Gliderport (CL35)

Coordinates

33.2844, -116.6747

Aircraft

Burkhart Grob G-103A TWIN II ACRO

Registration

N855BG

Category

Glider

Operator

Sky Sailing Inc

Operating rule

Part 91: General Aviation

Purpose of flight

Instructional

Phase of flight

Not recorded

Route

Warner Springs → Warner Springs

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

WPR11CA060

Nobody was injured.

The certified flight instructor's inadequate compensation for the crosswind and delayed remedial action during landing, which resulted in a ground loop.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full NTSB narrative

The certified flight instructor (CFI) stated that he was providing instruction to a student pilot in a glider. After a routine local instructional flight, they returned to the departure airport for landing. The student was flying the glider and the CFI was providing verbal instructions to him as they completed a standard traffic pattern to the dirt landing area. He reported that there was a crosswind at 12 knots, gusting to about 20 knots. The glider encountered a high sink rate and the CFI took authority over the controls. The glider ground looped, resulting in substantial damage to the tail. The CFI reported no preimpact mechanical malfunctions or failures with the glider that would have precluded normal operation.

Quoted verbatim from the NTSB record.