37000 Feet

Browse and search NASA's Aviation Safety Reporting System

A maintenance technician reported the trailing edge flaps were lowered and made contact with the open engine cowling.

Narrative:

I completed a hydraulic a and B reservoir drain and filter change. Amt #2 was troubleshooting #2 engine fire loop issue and left to retrieve parts to affect a repair. After clearing tools and equipment used for the reservoir task; I proceeded to the cockpit to power the hydraulics and perform a leak check. These tasks were a part of a [routine] check so I deployed the flaps to perform a leak check and the flap inspection required. The initial lack of knowledge that an open thrust cowl interferes with the transition of the flaps; contributed to the incident.

	Enter your search terms Submit search form
	Web www.37000feet.com

Original NASA ASRS Text

Title: A Maintenance Technician reported the trailing edge flaps were lowered and made contact with the open engine cowling.

Narrative: I completed a hydraulic A and B reservoir drain and filter change. AMT #2 was troubleshooting #2 engine fire loop issue and left to retrieve parts to affect a repair. After clearing tools and equipment used for the reservoir task; I proceeded to the cockpit to power the hydraulics and perform a leak check. These tasks were a part of a [routine] check so I deployed the flaps to perform a leak check and the flap inspection required. The initial lack of knowledge that an open thrust cowl interferes with the transition of the flaps; contributed to the incident.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.