Federal Register - September 9, 2021
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Source: Federal Register
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Federal Register / Vol. 86, No. 172 / Thursday, September 9, 2021 / Proposed Rules
Table 2 of paragraph i - Initial compliance time for the inspections listed in Table 1 of paragraph i of this AD
Age of airplane on July 1, 2020 the effective date of AD 2020-12-08
Initial Compliance Time for Each Inspection
Less than 48 MO since the date of issuance of the original airworthiness certificate or the original export certificate of airworthiness
Within 60 MO after the date of issuance of the original airworthiness certificate or the original export certificate of airworthiness
Between 48 MO and 72 MO
since the date of issuance of the original airworthiness certificate or the original export certificate of airworthiness
Within 12 MO after July 1, 2020 the effective date of AD 2020-12-08, or within 72 MO after the date of issuance of the original airworthiness certificate or the original export certificate of airworthiness, whichever occurs first
More than 72 MO since the date of issuance of the original airworthiness certificate or the original export certificate of airworthiness
Within 30 days after July 1, 2020 the effective date of AD 2020-12-08
j Retained Provision: No Alternative Actions or Intervals, With No Changes This paragraph restates the requirements of paragraph j of AD 20201208, with no changes. 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 p of this AD.
k New Definition For the purposes of this AD, since new is defined as since the date of issuance of the original airworthiness certificate or the original export certificate of airworthiness.
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l New Elevator Mass-Balance Actions Groups 1, 2, and 3
At the applicable compliance time specified in paragraph l1, 2, or 3 of this AD, clean, weigh, and, as applicable, install or replace the elevator mass-balances; or replace the elevator mass-balances; as applicable, in accordance with Part I of the Accomplishment Instructions in Embraer Service Bulletin SB505550004, Revision 01, dated June 24, 2020 SB50555
0004R01. Where steps 1d, 2d, and 3e of Part I of the Accomplishment Instructions in SB505550004R01 reference criteria of the PART I, use the criteria in section 1.D. of SB505550004R01.
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1 For airplanes with a serial number listed as Group 1 or Group 3 in paragraphs 1.A.1a and c, respectively, of SB50555
0004R01: Within 12 months after the effective date of this AD.
2 For airplanes with a serial number listed as Group 2 in paragraph 1.A.1b of SB505550004R01, which are not included in the effectivity of SB50555A004R5 or Embraer Alert Service Bulletin SB50555
A004, Revision 06, dated March 25, 2020
SB50555A004R06: At the applicable compliance time specified in paragraph l2i, ii, iii, iv, v, or vi of this AD.
i For airplanes with 12 or fewer months since new as of the effective date of this AD:
Within 18 months after the effective date of this AD.
ii For airplanes with more than 12
months but 24 or fewer months since new as of the effective date of this AD: Within 12
months after the effective date of this AD.
iii For airplanes with more than 24
months but 36 or fewer months since new as of the effective date of this AD: Within 9
months after the effective date of this AD.
iv For airplanes with more than 36
months but 48 or fewer months since new as of the effective date of this AD: Within 7
months after the effective date of this AD.
v For airplanes with more than 48 months but 60 or fewer months since new as of the effective date of this AD: Within 6 months after the effective date of this AD.
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vi For airplanes with more than 60
months since new as of the effective date of this AD: Within 5 months after the effective date of this AD.
3 For airplanes with a serial number listed as Group 2 in paragraph 1.A.1b of SB505550004R01, which are included in the effectivity of SB50555A004R5 or SB50555A004R06: Before further flight.
m New Aileron Mass Balance Actions Groups 1 and 2
At the applicable compliance time specified in paragraph m1, 2, or 3 of this AD, clean, weigh, and, as applicable, install or replace the aileron mass-balance in accordance with Part II of the Accomplishment Instructions in SB50555
0004R01. Where steps 1c and 2c of Part II of the Accomplishment Instructions in SB505550004R01 reference criteria of the PART II, use the criteria in section 1.D. of SB505550004R01.
1 For airplanes with a serial number listed as Group 1 in paragraph 1.A.2a of SB505550004R01: Within 60 months after the effective date of this AD.
2 For airplanes with a serial number listed as Group 2 in paragraph 1.A.2b of SB505550004R01, which are not included in the effectivity of SB50555A004R5 or SB50555A004R06: At the applicable compliance time specified in paragraph m2i or ii of this AD.
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BILLING CODE 491013C
