2005-13-09
FR doc 05-12152 · 70 FR 35993AD 2005-13-09Published 2005-06-22Effective 2005-07-26
Requires you to replace the main landing gear (MLG) up-lock hook assembly.
2 corrections to this AD FAA · 2006-03-29
Correction published 2005-08-23
- Issued by
- Federal Aviation Administration
- Published
- 2005-08-23
- Document
- Federal Register 05-16440 · Final rule; correction
- Corrects
- the version published June 22, 2005 at 70 FR 35993
This document incorporates corrections to add service information to Airworthiness Directive (AD) 2005-13-09, which was published in the Federal Register on June 22, 2005 (70 FR 35993). AD 2005-13-09 applies to certain GROB-WERKE Model G120A airplanes. This action adds GROB-WERKE Service Bulletin No. MSB1121-052/2, dated February 14, 2005, to paragraphs (e)(1), (e)(2), and (h) of AD 2005-13- 09. This service information was included in the notice of proposed rulemaking (NPRM) for this AD, but we inadvertently omitted it in the final rule request for comments. We are re-issuing the AD in its entirety to help eliminate any confusion that this AD may have created.
A correction restates part of an AD that was published incorrectly. It is not an additional requirement and it does not change the AD number or its effective date.
Source: Federal Register document 05-16440, retrieved 2026-08-17
Correction published 2006-03-29
- Issued by
- Federal Aviation Administration
- Published
- 2006-03-29
- Document
- Federal Register 06-2983 · Final rule; correction
- Corrects
- the version published August 23, 2005 at 70 FR 49184
This document makes a correction to Airworthiness Directive (AD) 2005-13-09, which published in the Federal Register on August 23, 2005 (70 FR 49184), and applies to certain GROB-WERKE Model G120A airplanes. AD 2005-13-09 requires replacement of the main landing gear (MLG) up-lock hook assembly. Current language in paragraph (e)(2) of AD 2005-13-09 incorrectly references the MLG up-lock assembly as "elevator and aileron hinge pins." This AD corrects that paragraph to reference the appropriate part number MLG up-lock hook assembly.
A correction restates part of an AD that was published incorrectly. It is not an additional requirement and it does not change the AD number or its effective date.
Source: Federal Register document 06-2983, retrieved 2026-08-17
Full official abstract
The FAA adopts a new airworthiness directive (AD) for certain GROB-WERKE Model G120A airplanes. This AD requires you to replace the main landing gear (MLG) up-lock hook assembly. This AD results from mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for Germany. We are issuing this AD to prevent the MLG from becoming jammed and not extending, which could result in loss of control of the airplane during landing. During the comment period for the notice of proposed rulemaking (NPRM) regarding this action, we received a comment recommending the incorporation of service information to install connecting bolts secured with cotter pins instead of connecting bolts secured with snap rings. All U.S.- registered airplanes currently have these actions incorporated so these actions do not impose an additional burden over that proposed in the NPRM and prior public comment is not necessary. However, we are reopening the comment period to allow the public the chance to comment on these additional actions.