<< >> NASA ASRS Report 921425, November 2010

A line mechanic reports trying to inspect a crack in a left engine pylon panel using ladders. He decided to access the A320 aircraft upper pylon by going over the left wing through the emergency exit door. He did not notice the 'slide armed' light when he removed the exit handle cover; opened exit door and slide deployed.

Attributes
ACN	921425
Time
Date	201011
Local Time Of Day	0001-0600
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Light	Night
Aircraft 1
Make Model Name	A320
Operating Under FAR Part	Part 121
Flight Phase	Parked
Component
Aircraft Component	Escape Slide
Person 1
Function	Technician
Qualification	Maintenance Airframe Maintenance Powerplant
Events
Anomaly	Aircraft Equipment Problem Critical Deviation - Procedural Published Material / Policy

Narrative:

I was working aircraft to inspect a crack in panel (412 dl) left engine pylon; tried to gain access on several ladders but could not get a good look at the panel. With that; I was thinking that I could get a better view and access to the area to be inspected by going over the left wing. Here my lack of awareness led me to think it was O.K. To remove the left emergency exit door. I removed the handle cover and did not notice the 'slide armed' light. Then proceeded to open the door and inadvertently deployed the slide. [I] reported to my supervisor the slide deployment. [One must] think think think about what you're doing!!!!

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Original NASA ASRS Text

Title: A Line Mechanic reports trying to inspect a crack in a left engine pylon panel using ladders. He decided to access the A320 aircraft upper pylon by going over the left wing through the emergency exit door. He did not notice the 'SLIDE ARMED' light when he removed the exit handle cover; opened exit door and slide deployed.

Narrative: I was working aircraft to inspect a crack in panel (412 DL) left ENG PYLON; tried to gain access on several ladders but could not get a good look at the panel. With that; I was thinking that I could get a better view and access to the area to be inspected by going over the left wing. Here my lack of awareness led me to think it was O.K. to remove the left Emergency Exit door. I removed the handle cover and did not notice the 'SLIDE ARMED' light. Then proceeded to open the door and inadvertently deployed the slide. [I] reported to my Supervisor the slide deployment. [One must] think think think about what you're doing!!!!

Data retrieved from NASA's ASRS site as of April 2012 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.