Service difficulty report · Nut · Boeing 747200

Difficulty date
August 23, 2004
Submitted
August 25, 2004
Operation
Air carrier
Aircraft
N523UP
Make and model
Boeing 747200
Aircraft serial
22381
Engine
Pwa JT9D7Q
Part
Nut
Condition
Loose
Location
Switch Assy
Stage of operation
IN
How discovered
9
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

INSPECTION TYPE: N/A, EMERGENCY LIGHTS ARM SWITCH INTERMITTENTLY INOPERATIVE. NOTICED UNARMED LIGHT ILLUMINATED. CYCLED SWITCH ON-ARM/ OFF AND GOT MIXED RESULTS. WILL NOT STAY ARMED IN ARM POSITION. TIGHTENED JAM NUT ON SWITCH ASSY. OPS CKS GOOD.

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