Service difficulty report · Switch · Boeing 737924ER

Difficulty date
June 8, 2024
Submitted
June 10, 2024
Operation
Air carrier
Aircraft
N37437
Make and model
Boeing 737924ER
Aircraft serial
33532
Aircraft time
47,172 hours, 16,588 cycles
Part
Switch
Part number
M88051008
Condition
Inoperative
Location
Cabin Pressure
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
B, A

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

What was found

CABIN ALTITUDE WAS SLOWLY RISING BUT NEVER EXCEEDED 10000 BITE OF DCPC SHOWED NO FAULTS. PERFORMED PRESSURIZATION CHECK PHASE 1 UP TO 4 PSI IAW AMM 21-00-05-780-801. AIRPLANE PRESSURIZED NORMALLY AND NO LEAKS WERE FOUND, NO FAULTS ON PSEU BITE. OK PER TASK 52-71-42-710-801.