AD NUMBER: 2009-15-18

MANUFACTURER: EMBRAER Model EMB-120, -120ER, -120FC, -120QC, and -120RT Airplanes

SUBJECT: Airworthiness Directive 2009-15-18

SUMMARY: This AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. It was found one occurrence of a fuel booster pump circuit br[e]aker opening during an engine maintenance servicing. An inspection inside the fuel tank revealed the fuel booster pump[']s electrical harness chafing against its body, causing the loss of the electrical wiring protection and resulting in a short circuit. Further in-tank inspections have showed other fuel booster pump electrical harnesses chafing either with the pump body and/or with adjacent fuel lines, causing damage to the harness protective layers and resulting  ...  (in a) possible ignition source inside the fuel tank.

We are issuing this AD to require actions to correct the unsafe condition on these products.

This AD becomes effective September 2, 2009.

FMI: http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgAD.nsf/0/459B861B1589A26286257602004CB94B?OpenDocument