Airworthiness directives › 2012-05-08
AD 2012-05-08 Airworthiness Directives; Empresa Brasileira de Aeronautica S.A. (EMBRAER) Airplanes
Models named: ERJ 170-100 LR, -100 STD, -100 SE, -100 SU, ERJ 170-200 LR, -200 SU, -200 STD. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to all Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model ERJ 170-100 LR, -100 STD, -100 SE., and -100 SU airplanes; and Model ERJ 170-200 LR, -200 SU, and -200 STD airplanes; certificated in any category.
Compliance
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
Required actions
At the applicable time specified in paragraph (g)(1), (g)(2), or (g)(3) of this AD: Do a general visual inspection for fuel leakage on the wings, close to the rib 10 area, while both tanks are fully fueled, in accordance with Part I of the Accomplishment Instructions of EMBRAER Alert Service Bulletin 170-57-A053, dated February 13, 2012. Note 1 to paragraph (g) of this AD: Guidance on performing the inspection for fuel leakage can be found in Task 28-11-00-790-801-A, Wing Tank—Fueled Tank Leakage Check, of the EMBRAER 170/175 Aircraft Maintenance Manual. (1) For airplanes that have accumulated 11,999 or fewer total flight cycles as of the effective date of this AD: Inspect before the accumulation of 12,000 total flight cycles, or within 150 flight cycles after the effective date of this AD, whichever occurs later. (2) For airplanes that have accumulated more than 11,999 total flight cycles but fewer than 13,926 total flight cycles as of the effective date of this AD: Inspect within 150 flight cycles after the effective date of this AD. (3) For airplanes that have accumulated more than 13,925 total flight cycles as of the effective date of this AD: Inspect before the accumulation of 14,075 total flight cycles, or within 75 flight cycles after the effective date of this AD, whichever occurs later.
Unsafe condition
This AD was prompted by reports of fuel seepage at the left-hand wing, close to the rib 10 area in two airplanes. We are issuing this AD to detect and correct cracking on the wing spar II, which could result in a fuel leak, consequent reduced structural integrity of the airplane, and possible fire.
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