Airworthiness Directive · Amendment 39-14358 · 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 Model G120A airplanes. This AD requires you to inspect for signs of any chafing damage to the attachment cables of the switch panels below the left-hand instrument panel, any damaged switch below the switch panels of the left-hand instrument panel, any damaged (that is, sharp) edge of the support tray for the attachment cables of the switch panels below the left-hand instrument panel; correct any damage found during the inspection; and apply a layer of anti-rub (protective padding) strips to the edge of the support tray. This AD results from mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for Germany. We are issuing this AD to detect, correct, and prevent chafing of the cables against the rear lip of the tray that holds the switch panels. Chafing of the electrical cables could result in smoke or fire in the cockpit.
To address this problem, you must do the following:
| Actions | Compliance | Procedures |
|---|---|---|
| (1) Inspect for: (i) Any signs of chafing damage to the attachment cables of switches below the switch panels of the left-hand instrument panel; | Within the next 50 hours time-in-service (TIS) after December 19, 2005 (the effective date of this AD), unless already done | Follow GROB Service Bulletin No. MSB1121-065, dated July 1, 2005 |
| (ii) Any damaged switch on switch panels of the left-hand instrument panel; and | ||
| (iii) Any damaged (that is, sharp) edge of the support tray for the attachment cables of switches below the switch panels of the left-hand instrument panel.. | ||
| (2) Correct any damage found as a result of the inspection required by paragraph (e)(1) of this AD: | ||
| (i) If you find any signs of chafing damage to the attachment cables of switches below the switch panels of the left-hand instrument panel, replace the attachment cables; | ||
| (ii) If you find any damaged switch below the switch panels of the left-hand instrument panel, replace the switch; and | ||
| (iii) If you find any damaged (that is, sharp) edge on the support tray for the attachment cables of switches below the switch panels of the left-hand instrument panel, grind off any sharp edges and clean thoroughly. | Before further flight after the inspection required by paragraph (e)(1) of this AD | Follow GROB Service Bulletin No. MSB1121-065, dated July 1, 2005. |
| (3) Apply anti-rub (padding strips to the edge of the support tray for the attachment cables of switches below the switch panels of the left-hand instrument panel. | Before further flight after the inspection required by paragraph (e)(1) of this AD. This modification is required even if damage is not found during the inspections | Follow GROB Service Bulletin No. MSB1121-065, dated July 1, 2005. |
