To: Helimutt
That’s right, mast separations and / or rotor incursions. There have been 35 to date.
If you check the last page of your POH you will see restrictions dealing with sideslipping and flying out of trim. Elsewhere you will see cautions against zero G and cautions against moving the cyclic aft in countering zero G. All of this stems from a report prepared by the Georgia Tech Aero Department for the FAA. As a result the NTSB wrote a report; SPECIAL INVESTIGATION REPORT. ROBINSON HELICOPTER COMPANY R22 LOSS OF MAIN ROTOR CONTROL ACCIDENTS. The report number is PB96-917003/NTSB/SIR-96/03.
The report outlines in detail what happened to the first 31 helicopters covered in the report. The last 4 rotor loss / rotor incursions happened last year. One in California, one in the UK, one in Scandinavia and one in Ireland. I wrote a report and submitted it to the NTSB outlining my thoughts on what I thought was the cause of these accidents. I offered the report to members of this forum and the S**t hit the fan. Most of the S**t was thrown by Robbie lovers and some from others that just like to throw S**t.
If you want, contact the NTSB and they will provide the following; the report but it might cost you and a printout of all of the Robinson accidents involving rotor loss or rotor incursion.
This information is dated and the name may have changed but the rest is OK.
Latricia Carter RE-50
NTSB
490 L’Enfant Plaza S.W.
Washington, DC
20594-2000
Telephone number 202 314-6000
Ask for her by name or by department number.
The official name of the department is Aviation Accident Data Specialist Analysis and Data Division.
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The Cat