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Good thing I stayed around the airport this week; I sure miss Air Venture ; BUt as usual there are things to do : Got this from Andy McAnaul this morning and had phone conversation too!
Greetings Forrest,
Its been awhile since we talked or corresponded. I hope you and your
family are doing well. You are probably aware of this recent incident
involving a failure of a BC-12D MLG tie strut due to corrosion. An old
1978 Taylorcraft Aviation Corporation Service Bulletin attempted to address
this problem, but the FAA has decided to issue an ACS to remind owners and
operators of the importance to check their structure for potential
corrosion related problems. I know with on your involvement in the
Taylorcraft community you of all people appreciate the need to keep on top
of aging aircraft issues. If you will, please share this ACS as
appropriate with your club members.
At this time, the FAA has not made a determination on what type of
corrective action (if any) should be taken. The resolution of this
airworthiness concern could involve an Airworthiness Directive action, a
Special Airworthiness Information Bulletin, or the FAA could determine that
no action is needed at this time. The FAA’s final determination will
depend in part on the information received in response to this ACS. As
described in the ACS, we consider this airworthiness concern as “
Information”. We are also sending this ACS to AOPA, the TC holder and
other Taylorcraft type clubs.
As always, please let me know if you need any additional information, and
thank you for your help.
Andy McAnaul/ASW-150
210-308-3365
(See attached file: TCraft MLG Tie Strut ACS.doc.docm)
I have the AWC Sheet here in Alliance. Large file ; unable to attach , will send to Bob & see what he can do. This is the basic information below " IF we just DO SB# 78-110 each annual would sure help.... Date: July 26, 2010
"FAA Description of Airworthiness Concern": A Taylorcraft BC-12D right main landing gear failed on landing when the landing gear tie strut broke approximately 6 inches inboard from the wheel. Investigation found the tie strut to be internally corroded and the probable contributing factor to the failure. Pictures of the failed tie strut are attached. Taylorcraft Aviation Corporation Service Bulletin No. 78-001 (attached) requires owners to check the strut drain hole for blockage, and to drill a drain hole if one does not exist.
Request for Information: The FAA requests information regarding known in-service problems or failures of the tie strut found on any Taylorcraft airplanes equipped with landing gear. Please contact ASW-150 with information to include aircraft model and serial number, type of failure to include the location and size of any cracks, corrosion or other problem encountered, and a point of contact name and phone number we can contact for any additional information. The FAA is also interested in any comments from Taylorcraft owners and/or users regarding landing gear tie strut problems or issues. Any replies to the FAA need to be as specific as possible. Please provide specific examples to illustrate your comments/concerns.
A preliminary risk assessment using the Small Airplane Directorate Airworthiness Directives Manual, Appendix V & VI, resulted in a Safety Risk Factor of 2 – Potential Manufacturer’s Service Information, General Aviation Alert, or Special Airworthiness Information bulletin (SAIB).
Attachments: *SDR(s)0 *A/IDS0 *SL(s)0 *SAIB0 *FAASR/*NTSBSR0 *AD0 *AMOC0 *RA0
Notification: FAA 0 *AOPA 1 *EAA 0 Type Club 1 *TC Holder 1 Other:
Response Requested 10/24/2010: Emergency (10 days) 0 Alert (30 days) 0 Information (90 days) 1
I WILL ADD MORE AS I GET IT!! bye Forrest
Greetings Forrest,
Its been awhile since we talked or corresponded. I hope you and your
family are doing well. You are probably aware of this recent incident
involving a failure of a BC-12D MLG tie strut due to corrosion. An old
1978 Taylorcraft Aviation Corporation Service Bulletin attempted to address
this problem, but the FAA has decided to issue an ACS to remind owners and
operators of the importance to check their structure for potential
corrosion related problems. I know with on your involvement in the
Taylorcraft community you of all people appreciate the need to keep on top
of aging aircraft issues. If you will, please share this ACS as
appropriate with your club members.
At this time, the FAA has not made a determination on what type of
corrective action (if any) should be taken. The resolution of this
airworthiness concern could involve an Airworthiness Directive action, a
Special Airworthiness Information Bulletin, or the FAA could determine that
no action is needed at this time. The FAA’s final determination will
depend in part on the information received in response to this ACS. As
described in the ACS, we consider this airworthiness concern as “
Information”. We are also sending this ACS to AOPA, the TC holder and
other Taylorcraft type clubs.
As always, please let me know if you need any additional information, and
thank you for your help.
Andy McAnaul/ASW-150
210-308-3365
(See attached file: TCraft MLG Tie Strut ACS.doc.docm)
I have the AWC Sheet here in Alliance. Large file ; unable to attach , will send to Bob & see what he can do. This is the basic information below " IF we just DO SB# 78-110 each annual would sure help.... Date: July 26, 2010
"FAA Description of Airworthiness Concern": A Taylorcraft BC-12D right main landing gear failed on landing when the landing gear tie strut broke approximately 6 inches inboard from the wheel. Investigation found the tie strut to be internally corroded and the probable contributing factor to the failure. Pictures of the failed tie strut are attached. Taylorcraft Aviation Corporation Service Bulletin No. 78-001 (attached) requires owners to check the strut drain hole for blockage, and to drill a drain hole if one does not exist.
Request for Information: The FAA requests information regarding known in-service problems or failures of the tie strut found on any Taylorcraft airplanes equipped with landing gear. Please contact ASW-150 with information to include aircraft model and serial number, type of failure to include the location and size of any cracks, corrosion or other problem encountered, and a point of contact name and phone number we can contact for any additional information. The FAA is also interested in any comments from Taylorcraft owners and/or users regarding landing gear tie strut problems or issues. Any replies to the FAA need to be as specific as possible. Please provide specific examples to illustrate your comments/concerns.
A preliminary risk assessment using the Small Airplane Directorate Airworthiness Directives Manual, Appendix V & VI, resulted in a Safety Risk Factor of 2 – Potential Manufacturer’s Service Information, General Aviation Alert, or Special Airworthiness Information bulletin (SAIB).
Attachments: *SDR(s)0 *A/IDS0 *SL(s)0 *SAIB0 *FAASR/*NTSBSR0 *AD0 *AMOC0 *RA0
Notification: FAA 0 *AOPA 1 *EAA 0 Type Club 1 *TC Holder 1 Other:
Response Requested 10/24/2010: Emergency (10 days) 0 Alert (30 days) 0 Information (90 days) 1
I WILL ADD MORE AS I GET IT!! bye Forrest
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