Service difficulty report · Switch · Boeing 737724

Difficulty date
September 21, 2025
Submitted
September 24, 2025
Operation
Air carrier
Aircraft
N24736
Make and model
Boeing 737724
Aircraft serial
28803
Aircraft time
80,550 hours, 28,096 cycles
Part
Switch
Condition
Malfunctioned
Location
Zone 800
Stage of operation
IN
How discovered
V
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

LEFT OVERWING DOOR LIGHT HAS FLASHED TWICE DOOR IS SECURED & VERIFIED BY FA.S. FOUND LOW SWITCH DISAGREE MSG 52-72020. ITEM HAS HISTORY. DOOR VERIFIED CLOSED. REQUESTING MEL. MEL COMPLIED WITH PERFORMED PSEU BITE TEST & RECONFIRMED 52-72020 LT OVRWG SW DISAGREE MAINT MESSAGE IN LAST LEG REPORT IAW AMM 32-09. CHECKED EXIT DOOR INDICATION SWITCH INPUTS FOR SWITCHES S1104 & S1105, TESTED OK IN LOCKED & UNLOCKED POSITION. FOLLOWED FIM 52-20 TASK 805. ACCOMPLISHED CHECK OF EMERGENCY EXIT DOOR INDICATION SWITCH ADJUST IAW AMM 52-71-22-820-805 FOUND WITHIN LIMITS, SECURED DOOR FLAGED, INSPECTION FLAGGED FOR INSPECTION ACP. RII INSPECTION OF O/W DOOR INSTALLATION, REF. GMM 09-25-05. CURRENTLY EXIT LIGHT IS EXTINGUISHED. RPL PSEU PRECAUTIONARY. REF MM32-09-10-400-801. OPS CHECKS GOOD. EXIT INDICATOR LIGHT REMAINS EXTINGUISHED.