Two mechanics report how the right aft overwing slide door opened and the slide came out; but did no...

Narrative:

We were changing overwing slide door sensor. We deactivated slide per the maintenance manual. Replaced the door sensor. When putting the arm safe handle back to arm position; the automatic fire bar hit the switches; the slide came out; the door came open. The slide did not deploy. Supplemental information from acn 822714: we deactivated the overwing slide system per maintenance manual 25-65-00 to work on the overwing door lock proximity switch. We determined that the right aft hatch disarming handle occasionally moved the switches to the fire position when the handle was moved to the arm position. The slide did not deploy because the inflation bottle was still pinned.

Original NASA ASRS Text

Title: Two Mechanics report how the right aft overwing slide door opened and the slide came out; but did not deploy; after they replaced the slide door sensor on a B767-300.

Narrative: We were changing overwing slide door sensor. We deactivated slide per the Maintenance Manual. Replaced the door sensor. When putting the arm safe handle back to arm position; the automatic fire bar hit the switches; the slide came out; the door came open. The slide did not deploy. Supplemental information from ACN 822714: We deactivated the overwing slide system per Maintenance Manual 25-65-00 to work on the overwing door lock proximity switch. We determined that the right aft hatch disarming handle occasionally moved the switches to the fire position when the handle was moved to the arm position. The slide did not deploy because the inflation bottle was still pinned.

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.

Attributes
ACN	822713
Time
Date	200902
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Aircraft 1
Make Model Name	B767-300 and 300 ER
Operating Under FAR Part	Part 121
Flight Phase	Parked
Component
Aircraft Component	Escape Slide
Person 1
Function	Technician
Person 2
Function	Technician
Events
Anomaly	Deviation - Procedural Maintenance Deviation - Procedural Published Material / Policy

Two mechanics report how the right aft overwing slide door opened and the slide came out; but did not deploy; after they replaced the slide door sensor on a B767-300.