Airworthiness Directive · Amendment 39-21143 · Elevator structure
Embraer S.A. (Type Certificate Previously Held by Empresa Brasileira de Aeronáutica S.A.) Airplanes
Superseded. A later AD replaced this one: AD 2022-05-12. Comply with the one in force.
This AD applies to Embraer S.A. (type certificate previously held by Empresa Brasileira de Aeronáutica S.A.) Model EMB-505 airplanes, all serial numbers, certificated in any category.
The FAA is superseding airworthiness directive (AD) 2011-20-01 for certain Empresa Brasileira de Aeron[aacute]utica S.A. (now Embraer S.A.) Model EMB-505 airplanes. AD 2011-20-01 required replacing the bolts that attach the balance mass weights to the elevator structure. This AD requires inspections of the mass-balance weights of the elevators, ailerons, and rudder (flight control surfaces) and their attachment parts and corrective actions if necessary, and revising the airworthiness limitation section of the existing maintenance manual or instructions for continued airworthiness to incorporate new airworthiness limitations. This AD also adds airplanes to the applicability. This AD was prompted by reports of corrosion in the mass-balance weights of the flight control surfaces, and a determination that new airworthiness limitations are necessary. The FAA is issuing this AD to address the unsafe condition on these products.
For airplanes with a serial number listed in Embraer Alert Service Bulletin SB505-55-A004, Revision 5, dated December 12, 2019 (“SB505-55-A004R5”): At the applicable compliance time specified in paragraph (g)(1), (2), or (3) of this AD, accomplish the actions required by paragraph (h) of this AD.
(1) For airplanes with a serial number listed in Group 1 of Embraer Alert SB505-55-A004R5: Within 3 calendar days or 5 hours time-in-service (TIS), whichever occurs first, after July 1, 2020 (the effective date of this AD).
(2) For airplanes with a serial number listed in Group 3 of SB505-55-A004R5: Within 30 calendar days or 50 hours TIS, whichever occurs first, after July 1, 2020 (the effective date of this AD).
(3) For airplanes with a serial number listed in Group 2 of SB505-55-A004R5: Within 60 calendar days or 100 hours TIS, whichever occurs first, after July 1, 2020 (the effective date of this AD).
For airplanes with a serial number listed in SB505-55-A004R5, at the applicable time specified in paragraph (g) of this AD: Do the inspections identified in paragraphs (h)(1) through (6) of this AD and, before further flight, install or replace the mass-balance, as applicable, and replace the attachment parts, in accordance with Parts I through VI and Part VIII, as applicable, of the Accomplishment Instructions of SB505-55-A004R5, except where SB505-55-A004R5 tells you to submit information to Embraer, instead you must comply with paragraph (k) of this AD.
(1) Do an inspection of the elevator horn mass-balance weights and attachments parts for corrosion and fragmentation, and weigh each mass-balance.
(2) Do an inspection of the elevator internal mass-balance weights and attachments parts for corrosion and fragmentation and, weigh each mass-balance. You must remove and weigh the mass-balance weight even if there is no sign of corrosion or material fragmentation.
(3) Do an inspection of the elevator adjustable mass-balance weights and attachments parts for corrosion and fragmentation, and weigh each mass-balance.
(4) Do an inspection of the aileron mass-balance weights and attachments parts for corrosion and fragmentation and, weigh each mass-balance. You must remove and weigh the mass-balance weight even if there is no sign of corrosion or material fragmentation.
(5) Do an inspection of the rudder adjustable mass-balance weights and attachments parts for corrosion and fragmentation, and weigh each mass-balance.
(6) Do an inspection of the rudder internal mass-balance weights and attachments parts for corrosion and fragmentation and, weigh each mass-balance. You must remove and weigh the mass-balance weight even if there is no sign of corrosion or material fragmentation.
Within 10 days after July 1, 2020 (the effective date of this AD), revise the airworthiness limitations section (ALS) of the existing maintenance manual or instructions for continued airworthiness to add the information in Table 1 to paragraph (i) of this AD and the initial compliance time information in Table 2 to paragraph (i) of this AD.
After the ALS has been revised as required by paragraph (i) of this AD, no alternative inspection intervals may be approved, except as provided in paragraph (n)(1) of this AD.
For airplanes with a serial number listed in SB505-55-A004R5, at the applicable time specified in paragraph (k)(1) or (2) of this AD: For any inspection required by paragraph (h) of this AD, report findings to Embraer via email to contact.center@embraer.com. The report must include information specified in Appendix 1 of SB505-55-A004R5.
(1) If the inspection was done on or after July 1, 2020 (the effective date of this AD): Submit the report within 96 hours after the inspection.
(2) If the inspection was done before July 1, 2020 (the effective date of this AD): Submit the report within 5 days after July 1, 2020 (the effective date of this AD).
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.
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