Tuesday, November 10, 2020

Schleicher ASW-20C, N18MA and Schleicher ASW-27, N81KP: Accident occurred November 07, 2020 Clayton, Contra Costa County, California

This is preliminary information, subject to change, and may contain errors. Any errors in this report will be corrected when the final report has been completed.

The National Transportation Safety Board did not travel to the scene of this accident.

Additional Participating Entity:  
Federal Aviation Administration / Flight Standards District Office; Oakland, California 


Location: Clayton, CA 
Accident Number: WPR21LA040
Date & Time: November 7, 2020, 12:51 Local 
Registration: N18MA (A1); N81KP (A2)
Aircraft: Schleicher ASW20C (A1); Schleicher ASW27 (A2) 
Injuries: 1 Serious (A1); 1 Serious (A2)
Flight Conducted Under:

Aircraft and Owner/Operator Information (A1)

Aircraft Make: Schleicher
Registration: N18MA
Model/Series: ASW20C 
Aircraft Category: Glider
Amateur Built: No
Operator: 
Operating Certificate(s) Held: None
Operator Designator Code:

Aircraft and Owner/Operator Information (A2)

Aircraft Make: Schleicher 
Registration: N81KP
Model/Series: ASW27 
Aircraft Category: Glider
Amateur Built: No
Operator: 
Operating Certificate(s) Held: None
Operator Designator Code:

Meteorological Information and Flight Plan

Conditions at Accident Site:
Condition of Light:
Observation Facility, Elevation: 
Observation Time:
Distance from Accident Site: 
Temperature/Dew Point:
Lowest Cloud Condition: 
Wind Speed/Gusts, Direction: / ,
Lowest Ceiling: Visibility:
Altimeter Setting: 
Type of Flight Plan Filed:
Departure Point:
Destination: 

Wreckage and Impact Information (A1)

Crew Injuries: 1 Serious
Aircraft Damage: Substantial
Passenger Injuries: 
Aircraft Fire: None
Ground Injuries: 
Aircraft Explosion: None
Total Injuries: 1 Serious
Latitude, Longitude: 37.839997,-121.87482 (est)

Wreckage and Impact Information (A2)

Crew Injuries: 1 Serious 
Aircraft Damage: Substantial
Passenger Injuries:
Aircraft Fire: None
Ground Injuries: 
Aircraft Explosion: None
Total Injuries: 1 Serious 
Latitude, Longitude: 37.839997,-121.87482 (est)
 


Mid-air collision involving gliders on Mt. Diablo on Saturday, November 7th

Here’s what a witness had to say:

You have to zoom in (on the pictures), but you can see the gliders, a parachute and the body of the pilot. I was out at Knobcone Point on Mt. Diablo, when we saw two odd looking and sounding gliders, collide head on. The first glider circled around the summit and came back towards us….we were facing East/SE on Knobcone Point. The glider sounded like it had an electric or something else non-gasoline engine. I took some photos, but I only had a 15-30mm lens with me today. If you zoom in on the photo you can see the two gliders, one still circling above the parachutist, the other plane out of control heading to earth, and a small speck that was the other pilot (we think). Spoke to a Ranger and they found the parachutist and were transporting them to a hospital. Click on each photo for a much larger view of the photos, and to see the two planes and at least one person with a parachute.

UPDATE: The FAA released the following information to Claycord.com:

Two Schleicher gliders collided in mid-air over Mt. Diablo State Park, around 12:50 p.m. Saturday. Only the pilots were on board and each parachuted out of the plane. The gliders tail numbers are N81KP and N18MA. The FAA and NTSB will investigate.

The condition of the pilots is unknown at this time.

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