Narrative:

On approach and landing to runway 25L the aircraft approach path penetrates directly behind a parked [airbus widebody] at a 90 degree angle. On this occasion (and one previously in a C152) the [airbus] had powered up its engines to finish its last few feet of taxi into its parking spot underneath the ATC tower. The high powered jet blast caused the landing aircraft to temporarily go out of control and be blown off course (off the centerline of the runway.) although control was regained in both situations; there is potential for a serious accident--especially if an inexperienced or student pilot is at the controls (as is very likely for runway 25L since most student pilots use this runway when at lgb.) I reported the event to the ground controller.

Google
 

Original NASA ASRS Text

Title: C172 pilot reported momentary loss of control on approach and landing to LGB Runway 25L when he encountered jet blast from a widebody Airbus on the ground.

Narrative: On approach and landing to Runway 25L the aircraft approach path penetrates directly behind a parked [Airbus widebody] at a 90 degree angle. On this occasion (and one previously in a C152) the [Airbus] had powered up its engines to finish its last few feet of taxi into its parking spot underneath the ATC Tower. The high powered jet blast caused the landing aircraft to temporarily go out of control and be blown off course (off the centerline of the runway.) Although control was regained in both situations; there is potential for a serious accident--especially if an inexperienced or student pilot is at the controls (as is very likely for Runway 25L since most student pilots use this runway when at LGB.) I reported the event to the Ground Controller.

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.