Service difficulty report · Pressure Switch · Boeing 737824

Difficulty date
May 31, 2024
Submitted
June 5, 2024
Operation
Air carrier
Aircraft
N37253
Make and model
Boeing 737824
Aircraft serial
30584
Aircraft time
73,069 hours, 26,869 cycles
Part
Pressure Switch
Part number
21SN4152
Condition
Malfunctioned
Location
Nacelleanti-Ice
Stage of operation
UK
How discovered
9
Nature of condition
O
Precautionary procedure
A

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

What was found

NUMBER 2 ENGINE COWL ANTI ICE FLICKERED ON MOMENTARILY AND EXTIN G UISHED. REQUEST MEL 3003D DEFERRED PER MEL 3003D DISPATCH DESK: 33 NAME: PA DATE: 31-MAY-24- NOC DESK: 738 NAME: JP DATE: 31-MAY-24- TOMC APPROVED *DM* REF. FIM 30-21 TASK 801 FOR TROUBLESHOOTING. 29-3021-9-9001 SLAVED IN ENG ANTI ICE VALVE IAW AMM 30-21-11 NO HELP. TS IAW FIM 30-21 TASK 801 FOUND DUCT OVER PRESSURE INOP SW. S-806 P/N 29-3021-9-9001