Service difficulty report · Pressure Switch · Boeing 767424ER

Difficulty date
April 8, 2025
Submitted
April 11, 2025
Operation
Air carrier
Aircraft
N77066
Make and model
Boeing 767424ER
Aircraft serial
29461
Aircraft time
90,407 hours, 14,416 cycles
Part
Pressure Switch
Part number
21C1321
Part serial
AD15250
Condition
Faulted
Location
Zone 600
Part time
3,478 hours, 462 cycles
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

RIGHT FWD WING PRESSURE SWITCH REQUIRE REPLACEMENT PER JC 2820-02563-002 REMOVED AND REPLACED RIGH FWD PRESSURE SWITCH IAW AMM 28-42-01. OPS CK GOOD CK GOOD.PARTS