Originally Posted by
Genghis the Engineer
Can you post a link to the accident investigation report on the fatality you're talking about B2N2?
G
I'll look for it when I'm not on my phone.
In the mean time it's been discussed here before
http://www.pprune.org/archive/index.php/t-309978.html
The issue is mentioned here:
Piper Service Bulletin 661, entitled "Control Column Installation Modification", was issued on August 22, 1979. The purpose for issuance of Piper Service Bulletin 661 was reported as, "It has been reported that roughness or binding of the control shaft in the instrument panel cutout hole can occur when the control wheel is full aft and direct forward or upward-and-forward pressure, rather than linear pressure along the control shaft, is applied. This Service Release contains instructions for the modification of the control wheel shaft bushing assembly to provide a smoother forward movement of the control shaft from a fully aft and up position." A copy of Piper Service Bulletin 661 is attached to this factual report.
Piper Service Bulletin 800, entitled "Elevator Control Travel Modification", was issued on November 19, 1984. The purpose for issuance of Piper Service Bulletin 800 was reported as, "It has been reported that when either control wheel is full aft and an upward-and-forward pressure is applied, the potential exists that the pilot may be unable to move the control yoke out of the full aft position. This Service Bulletin provides instructions to modify the elevator up travel to alleviate the above described problem."
https://app.ntsb.gov/pdfgenerator/ReportGeneratorFile.ashx?EventID=20001212X19701&AKey=1&RType =Final&IType=FA
I'll look for more.