Airworthiness Directive · Amendment 39-17071 · Horizontal stabilizer spar/rib
WACO Classic Aircraft Corporation Airplanes
This AD applies to the following WACO Classic Aircraft Corporation model airplanes listed in paragraphs (c)(1) through (c)(3) of this AD, certificated in any category:
(1) 2T-1A: Serial numbers (S/Ns) 0501 through 0502,
(2) 2T-1A-1: S/Ns 0503 through 0699, and
(3) 2T-1A-2: S/Ns 0701 through 1012.
We are adopting a new airworthiness directive (AD) for certain WACO Classic Aircraft Corporation Models 2T-1A, 2T-1A-1, and 2T-1A-2 airplanes. This AD requires inspection of the front and rear horizontal stabilizer spar assemblies with replacement of parts as necessary. This AD was prompted by cracking of the horizontal stabilizer spars, which could lead to failure of the horizontal spars with consequent loss of control. We are issuing this AD to correct the unsafe condition on these products.
Before doing aerobatic flight maneuvers or at the next annual or 100-hour inspection after July 20, 2012, whichever occurs first, and repetitively thereafter at intervals not to exceed every 200 hours time-in-service (TIS), inspect the front and rear horizontal stabilizer spar assemblies for cracking following WACO Classic Aircraft Corporation, Great Lakes Aircraft, Service Bulletin No. SB-GL12-01R, Revision IR, dated January 25, 2012.
If any cracking is found during any of the inspections required by paragraph (g) of this AD, before further flight, replace the cracked parts following WACO Classic Aircraft Corporation, Great Lakes Aircraft, Service Bulletin No. SB-GL12-01R, Revision IR, dated January 25, 2012.
Within 10 days after the initial inspection required in paragraph (g) of this AD, send a report of the inspection results to the Chicago Aircraft Certification Office (ACO) using the contact information found in the Related Information paragraph (l). Include in your report the following information:
(1) Date of inspection,
(2) Model of aircraft,
(3) N number of aircraft,
(4) Serial number of aircraft,
(5) Hours TIS of aircraft,
(6) Description of failure if applicable,
(7) Part(s) and part number of failed part(s) if applicable.
A federal agency may not conduct or sponsor, and a person is not required to respond to, nor shall a person be subject to a penalty for failure to comply with a collection of information subject to the requirements of the Paperwork Reduction Act unless that collection of information displays a current valid OMB Control Number. The OMB Control Number for this information collection is 2120-0056. Public reporting for this collection of information is estimated to be approximately 5 minutes per response, including the time for reviewing instructions, completing and reviewing the collection of information. All responses to this collection of information are mandatory. Comments concerning the accuracy of this burden and suggestions for reducing the burden should be directed to the FAA at: 800 Independence Ave. SW., Washington, DC 20591, Attn: Information Collection Clearance Officer, AES-200.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
