Service difficulty report · Pressure Switch · Boeing 767323

Difficulty date
July 29, 2022
Submitted
August 3, 2022
Operation
Air carrier
Aircraft
N321CM
Make and model
Boeing 767323
Aircraft serial
29431
Aircraft time
85,029 hours, 14,332 cycles
Part
Pressure Switch
Condition
Chafed
Stage of operation
DE
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 ENGINE HPSOV ON DESCENT. MEL 36-11-02-02. FOUND LH ENGINE HPSOV T1 TERMINAL WIRE HAD CHAFED. REPAIRED WIRE WITH SPLICE PER SWPM 20-10-11. REVERSED MEL MAINTENANCE PROCEDURE. PERFORMED AIR SUPPLY BITE CHECK PER AMM 36-23-00. BITE CHECK OKAY.