Airworthiness directives › 2023-26-03
AD 2023-26-03 Airworthiness Directives; WACO Classic Aircraft Corporation Airplanes
Models named: 2T-1A-2. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to WACO Classic Aircraft Corporation Model 2T-1A-2 airplanes, serial numbers 1200 and subsequent with the 30116-100 upper wing center section assembly configuration, certificated in any category.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
(1) Within 30 days after the effective date of this AD, insert maneuver restriction placards on the instrument panel of the front and rear cockpits, and next to the operating placard in the rear cockpit, stating “NO AEROBATIC MANEUVERS ALLOWED.” (2) Within 100 hours time-in-service (TIS) or within 12 months after the effective date of this AD, whichever occurs first, accomplish the following: (i) Inspect the leading edge former ribs and trailing edge former ribs in the upper wing center section for cracking in accordance with section B and before further flight, replace any cracked rib in accordance with section C of the Accomplishment Instructions in WACO Great Lakes 2T-1A-2 Service Bulletin GL-SB0002, Revision NR, dated July 6, 2023 (WACO SB 2T-1A-2, Revision NR). Although section B of the Accomplishment Instructions in WACO SB 2T-1A-2, Revision NR, specifies to record the locations of all identified cracks found on the leading edge former ribs and the trailing edge former ribs and share this information with WACO Aircraft, this AD does not require those actions. (ii) Modify the center section to the 30116-104 upper wing center section assembly configuration in accordance with section C of the Accomplishment Instructions in WACO SB 2T-1A-2, Revision NR. (3) After replacing all cracked ribs and modifying the center section to the 30116-104 upper wing center section assembly configuration, aerobatic maneuvers can resume and the “NO AEROBATIC MANEUVERS ALLOWED” maneuver restriction placards can be removed from the front and rear cockpits.
Unsafe condition
This AD was prompted by reports of multiple cracks at the leading edge former ribs and trailing edge former ribs in the upper wing center section along the top flange where the ribs attach to the spar after low flight hours. The FAA is issuing this AD to detect and correct cracks in the leading and trailing edge former ribs in the upper wing center section. The unsafe condition, if not addressed, could result in reduced structural integrity of the airplane and the reduced ability of the flightcrew to maintain the safe flight and landing of the airplane.
Affected ADs
None.
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1