The problem:
TCM 642087 starter adapter main gear shaft breakage/oil scavenge pump
failure/air conditioning failure, all due to improper main gear shaft alignment

1) For those aircraft with air conditioning or air conditioning and turbo oil scavenge pump.
• Modify 642087 starter adapter to 642087M by installing alignment dowels into existing turbo oil scavenge pump and re-certify existing starter adapter main gear shaft.

2) For those aircraft without air conditioning and without turbo oil scavenge pump.
• Modify 642087 to more reliable, lower cost, 642083M starter adapter.

3) For those aircraft without air conditioning but with turbo oil scavenge pump.
• Modify 642087 to more reliable, lower cost, 642085M starter adapter.

To read the service bulletin Click here.
To read the FAA Special Airworthiness Information Bulletin Click here.

Note: This document requires acrobat reader 5.0 and takes about 2 minutes to download.

IF YOU HAVE QUESTIONS, WE HAVE ANSWERS!
Niagara Air Parts, Inc. is the "factory direct" distributor in the USA for Canadian Aero Manufacturing; a Transport Canada Approved aircraft parts manufacturer and maintenance organization, # 384-91. We maintain an extensive inventory of "in stock" parts to keep you flying. You can contact us at Sales@niagaraairparts.com or USA 800-565-4268 International 705-326-1368.

You can email us at sales@niagaraairparts.com