Service difficulty report · Rod · Boeing 747251B

Difficulty date
May 5, 2015
Submitted
May 18, 2015
Operation
Air carrier
Aircraft
N706BL
Make and model
Boeing 747251B
Aircraft serial
21705
Aircraft time
103,132 hours, 18,177 cycles
Part
Rod
Condition
Out Of Adjust
Location
R5 Door
Stage of operation
IN
How discovered
C
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

DURING EMER EVACUATION DRILL, THE DOOR 5R FAILED TO ENGAGE INTO THE ARMED POSITION, THUS PREVENTING THE DOOR SLIDE & RAFT TO DEPLOY PROPERLY. INITIAL INVESTIGATION REVEALED THAT THE GIRT BAR LOCK FITTINGS DID NOT ENGAGE UNDERNEATH THE FLOOR BRACKET PROPERLY. OPERATIONAL & INSPECTION CHECK REVEALED THAT ALTHOUGH THE ARMING HANDLE TRAVELED FROM THE MANUAL WINDOW TO THE AUTOMATIC WINDOW THE FULL TRAVEL OF THE HANDLE WAS NOT REACHED, APPROX 1/2 TO 1 INCH SHORT. THIS WAS DUE TO THE BAR LOCK ASSEMBLY BUTTING UP AGAINST THE UPPER TAB OF THE FLOOR BRACKETS & NOT SLIDING UNDERNEATH & INTO THE BRACKET AS REQUIRED. FURTHER ENTRY DOOR LOWER GATE ROD TO LIFTER ASSEMBLY ADJUSTMENT WAS NEEDED TO FULLY SEAT THE BAR LOCK ENGAGING ROLLER ARM INTO THE BAR LOCK ASSEMBLY FOR SLIDING INTO THE FLOOR BRACKET.