AD/EMB-120/49 Amdt 1 - Fuel Quantity Indication System (Cth)

AIRWORTHINESS DIRECTIVE On the effective date specified below, and for the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/EMB-120/49 and issues the following AD under subregulation 39.001(1) of CASR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.

Embraer EMB-120 (Brasilia) Series Aeroplanes AD/EMB-120/49 Amdt 1 Fuel Quantity Indication System 10/2009 DM

Applicability: EMB-120, EMB-120RT, EMB-120ER, EMB-120FC and EMB-120QC model aeroplanes.

Requirement: 1. With at least 400 kg (882 lb) of fuel in each tank perform task number 28-42-00, from one of the EMB-120 AMM listed in Table 1 below, to determine the real fuel quantity on each tank using the dripless measuring sticks. Compare the results of the fuel quantity measured with the master indicator and repeater indicator readings for each tank. If the difference of the indicated fuel quantity is 60 kg (132 lb) or less, no further action is necessary.

2. If the difference of the indicated fuel quantity is greater than 60 kg (132 lb), accomplish the following:

a. If the difference is greater than 60 kg (132 lb) on both tanks, correct the Fuel Quantity Indication System (FQIS) indication.

b. If the difference is greater than 60 kg (132 lb) on only one tank, correct the FQIS indication.