Service difficulty report · Proximity Switch · Boeing 737522

Difficulty date
February 22, 2001
Submitted
March 7, 2001
Operation
Air carrier
Aircraft
N909UA
Make and model
Boeing 737522
Aircraft serial
25009
Aircraft time
28,829 hours, 18,526 cycles
Engine
Ge CFM56*
Part
Proximity Switch
Condition
Failed
Location
L1 Door
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

DIVERTED DUE TO THE DOOR 1L WARNING LIGHT ILLUMINATING. *S/D* ADJUSTED GUIDE ARM, DOOR STOP PINS, AND DOOR INDICATION SWITCH. ALSO FOUND A BAD DOOR PROXIMITY SWITCH. REPLACED THE SWITCH. OPS CHECKED GOOD.