Service difficulty report · Pressure Switch · Boeing 757251

Difficulty date
February 14, 2021
Submitted
February 16, 2021
Operation
Air carrier
Aircraft
N540US
Make and model
Boeing 757251
Aircraft serial
26487
Aircraft time
73,381 hours, 27,716 cycles
Part
Pressure Switch
Condition
Malfunctioned
Location
Flap System
Stage of operation
AP
How discovered
O
Nature of condition
J
Precautionary procedure
L

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

What was found

SHIP 5640 - THE "FLAP DISAGREE" EICAS MESSAGE DISPLAYED ON APPROACH WHEN THE FLAPS WERE SELECTED TO EXTEND. THE FLIGHT CREW PERFORMED A GO-AROUND, DECLARED AN EMERGENCY, AND USED THE ALTERNATE FLAPS FOR LANDING. CORRECTIVE ACTION: MAINTENANCE REPLACED THE FLAP/SLAT DEPRESSURIZATION MODULE PRESSURE SWITCH AND COMPLIED WITH THE NO GO ODI PROCEDURES. AIRCRAFT HAS RETURNED TO SERVICE. (LP #7574196)