Service difficulty report · Cover · Boeing 757224

Difficulty date
December 21, 2023
Submitted
December 22, 2023
Operation
Air carrier
Aircraft
N19141
Make and model
Boeing 757224
Aircraft serial
30354
Aircraft time
81,311 hours, 19,430 cycles
Part
Cover
Part number
411N20588SP
Part serial
NSN
Condition
Out Of Position
Location
Slide Light
Stage of operation
IN
How discovered
C
Nature of condition
L
Precautionary procedure
K

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

What was found

WHEN SQUIB TEST BUTTON PRESSED TO NUMBER "1" POSITION BOTH WING SLIDE LIGHTS DO NOT ILLUMINATE. UPON FURTHER INVESTIGATION FOUND L/H AND R/H OVERWING SLIDE ARMING PANELS IN WRONG POSITIONS. SWAPPED PANELS TO PROPER CONFIGURATION REF AMM 25-65-11. AS STATED IN THE UPDATED SECTION OF THIS LOG PAGE, THE OVER WING EMERGENCY SLIDING ARM/DISARM PANELS WERE IN WRONG POSITIONS. AFTER CORRECTING THAT IN REF TO AMM 25-65-11, SYSTEM OPS CK GOOD IN REF TO AMM 25-65-00-765-027. VERIFIED SQUIB TEST IAW AMM 25-65-00-765-027. DURING TROUBLE SHOOTING, FOUND THAT THE OVER WING EXIT ARM LEVERS WERE DISARMED WHEN IN THE "ARMED" POSITION AND ARMED WHEN IN THE "DISARMED" POSITION... FOUND THAT A TECH IN SFO HAD FOUND THAT THE DOORS WEREN''T FLUSH WHEN IN THE "ARMED" POSITION. THE TECH THEN SWAPPED THE DOORS/ COVERS INDUCING THE ERROR. UPON FURTHER INVESTIGATION ONCE WE PLACED THE DOORS/ COVERS BACK INTO THE CORRECT POSITION, WE FOUND THAT THE VERBAL PLACARDS WERE IN THE INCORRECT POSITION WHILE THE PICTORIAL PLACARDS WERE IN CORRECT LOCATION ON THE ARM/DISARM COVER.