Airworthiness Directive · Amendment 39-14110 · GROB-WERKE Model G120A Airplanes
GROB-WERKE Model G120A Airplanes
This AD affects Model G120A airplanes, all serial numbers, that are certificated in any category.
The FAA adopts a new airworthiness directive (AD) for all GROB-WERKE (GROB) Model G120A airplanes. This AD requires you to replace the main landing gear front and rear spherical bearings with improved spherical bearings. This AD results from mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for Germany. We are issuing this AD to replace front and rear main landing gear bearings that are susceptible to damage when exposed to high axial loads, which could result in failure of the landing gear bearing. This failure could lead to loss of control on landing.
To address this problem, you must do the following:
| Actions | Compliance | Procedures |
|---|---|---|
| (1) Replace any part number (P/N) S20 main landing gear front and rear spherical bearings with improved spherical bearings (P/N SSRC 20 C2) | Within the next 100 hours time-in-service (TIS) after July 18, 2005 (the effective date of this AD), unless already done | Follow GROB Service Bulletin No. MSB1121-054, dated November 22, 2004. |
| (2) Do not install any P/N S20 main landing gear front and rear spherical bearings | As of July 18, 2005 (the effective date of this AD) | Not Applicable. |
