Service difficulty report · Spring · Boeing 777FS2

Difficulty date
September 12, 2014
Submitted
September 12, 2014
Operation
Air carrier
Aircraft
N890FD
Make and model
Boeing 777FS2
Aircraft serial
41439
Aircraft time
8,433 hours, 1,292 cycles
Part
Spring
Part number
402122
Condition
Missing
Location
Light Switch
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

EMERGENCY LIGHTS SWITCH IS MISSING INTERNAL SPRING CLIP, DOES NOT DISARM OR ARM EMER LIGHTS WHEN COVER IS POSITIONED DOWN OR WHEN SELECTED TO OFF. R & R EMER LIGHTS SWITCH GUARD COVER WITH SPRING CLIP PN 402-122 IAW SMP. PERFORMED EMER LIGHT OPERATIONAL TEST WITH PILOTS EMER LIGHT SWITCH WORKS NORMAL IAW AMM. ACFT OK FOR SERVICE.

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