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Airworthiness Directive

AD 99-26-11 64 FR 71003 Active

Federal Aviation Administration · 14 CFR part 39

Requires a one-time visual inspection to detect corrosion on the upper half of the lower longerons on the inboard nacelles; and corrective actions, if necessary.

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FR document
99-32582
Amendment
39-11470
Published
1999-12-20
Effective
2000-01-24
Models covered
1

Last live check: 2026-08-19

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AD

99-26-11

FR doc 99-32582 · 64 FR 71003

AD 99-26-11Published 1999-12-20Effective 2000-01-24

FAA rule - 14 CFR 39

FAA rule. Compliance with an applicable AD is required under 14 CFR 39.7. Check its effective date, applicability, compliance times and current status.

Requires a one-time visual inspection to detect corrosion on the upper half of the lower longerons on the inboard nacelles; and corrective actions, if necessary.

Full official abstract

This amendment adopts a new airworthiness directive (AD), applicable to certain Bombardier Model DHC-7 series airplanes, that requires a one-time visual inspection to detect corrosion on the upper half of the lower longerons on the inboard nacelles; and corrective actions, if necessary. This AD also requires modification of the upper and lower longeron halves. This amendment is prompted by issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified by this AD are intended to detect and correct corrosion in the upper halves of the left and right hand lower longerons on the inboard nacelles, which could result in a landing gear failure.

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All de Havilland DHC-7 Dash 7 directives

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Applies to 1 model in our index