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Grob ii sc aircraft. Pilot doing acrobatic maneuvers oversped his aircraft. The elevator control tab departed the aircraft. Pilot did not give proper notification to FSS that aerobatics were to be performed in the designated area.
| Attributes | |
| ACN | 413053 |
| Time | |
| Date | 199808 |
| Day | Sun |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : vny |
| State Reference | CA |
| Altitude | msl bound lower : 5500 msl bound upper : 5500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : vny |
| Operator | general aviation : personal |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise other |
| Flight Plan | None |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : cfi |
| Experience | flight time last 90 days : 288 flight time total : 592 flight time type : 45 |
| ASRS Report | 413053 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : regained aircraft control none taken : insufficient time other |
| Consequence | other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | other |
Narrative:
While I was recovering from a maneuver called 'split south' I realized that I was picking up to mach speed. I found myself in the yellow arc (well above va) and I tried to pull up very gently. When I reached 170 KTS the trim tab collapsed and I lost it. Also, the elevator had small damage, but the airplane was ctlable and I safely landed at vny. Also, I realized that to practice aerobatics in that area, I was supposed to open the aerobatic box with the local FSS, something that I wasn't aware of.
Original NASA ASRS Text
Title: GROB II SC ACFT. PLT DOING ACROBATIC MANEUVERS OVERSPED HIS ACFT. THE ELEVATOR CTL TAB DEPARTED THE ACFT. PLT DID NOT GIVE PROPER NOTIFICATION TO FSS THAT AEROBATICS WERE TO BE PERFORMED IN THE DESIGNATED AREA.
Narrative: WHILE I WAS RECOVERING FROM A MANEUVER CALLED 'SPLIT S' I REALIZED THAT I WAS PICKING UP TO MACH SPD. I FOUND MYSELF IN THE YELLOW ARC (WELL ABOVE VA) AND I TRIED TO PULL UP VERY GENTLY. WHEN I REACHED 170 KTS THE TRIM TAB COLLAPSED AND I LOST IT. ALSO, THE ELEVATOR HAD SMALL DAMAGE, BUT THE AIRPLANE WAS CTLABLE AND I SAFELY LANDED AT VNY. ALSO, I REALIZED THAT TO PRACTICE AEROBATICS IN THAT AREA, I WAS SUPPOSED TO OPEN THE AEROBATIC BOX WITH THE LCL FSS, SOMETHING THAT I WASN'T AWARE OF.
Data retrieved from NASA's ASRS site as of July 2007 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.