General aviation pilot reported damage from air carrier jet blast while in position on runway at sna...

Attributes
ACN	1355703
Time
Date	201605
Local Time Of Day	0601-1200
Place
Locale Reference	SNA.Airport
State Reference	CA
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Small Aircraft Low Wing 1 Eng Fixed Gear
Operating Under FAR Part	Part 91
Flight Phase	Takeoff
Route In Use	None
Flight Plan	None
Aircraft 2
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	Taxi
Flight Plan	IFR
Person 1
Function	Instructor Pilot Flying
Qualification	Flight Crew Multiengine Flight Crew Instrument Flight Crew Commercial Flight Crew Flight Instructor
Experience	Flight Crew Last 90 Days 220 Flight Crew Total 913 Flight Crew Type 128
Person 2
Function	Ground
Qualification	Air Traffic Control Fully Certified
Experience	Air Traffic Control Time Certified In Pos 1 (yrs) 5
Events
Anomaly	Ground Event / Encounter Loss Of Aircraft Control Ground Event / Encounter Ground Strike - Aircraft

Narrative:

While taxiing; I had requested the full length of 20L. Tower acknowledged the request and made it available by having me back taxi 20L from kilo taxiway to the full length. As I was back taxiing the runway I noticed a jet holding short 20R between 20R and 20L. I took note of the jet as I taxied in to the full length take off position; but did not expect it to move while I was behind the jet because ATC was aware of my position. In the full length position I asked tower if I was cleared for takeoff; tower replied 'no; but now you are cleared for takeoff 20L full length. As I was holding the brakes and preparing to apply full take off power I noticed the ground start spinning; or more accurately my aircraft being blown onto the wingtip by the jet blast from the previously mentioned jet moving into its takeoff position. The only thing I could do to maintain control of the aircraft; was apply the crosswind correction. I should have alerted tower to the predicament; but the event happened so fast and I was so overwhelmed that I was only focusing on the aircraft control.

Original NASA ASRS Text

Title: General aviation pilot reported damage from air carrier jet blast while in position on runway at SNA.

Narrative: While taxiing; I had requested the full Length of 20L. Tower acknowledged the request and made it available by having me back taxi 20L from Kilo taxiway to the full length. As I was back taxiing the runway I noticed a jet holding short 20R between 20R and 20L. I took note of the jet as I taxied in to the full length take off position; but did not expect it to move while I was behind the jet because ATC was aware of my position. In the full length position I asked tower if I was cleared for takeoff; Tower replied 'no; But now you are cleared for takeoff 20L full length. As I was holding the brakes and preparing to apply full take off power I noticed the ground start spinning; or more accurately my aircraft being blown onto the wingtip by the jet blast from the previously mentioned jet moving into its takeoff position. The only thing I could do to maintain control of the aircraft; was apply the crosswind correction. I should have alerted tower to the predicament; but the event happened so fast and I was so overwhelmed that I was only focusing on the aircraft control.

Data retrieved from NASA's ASRS site 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.