Service difficulty report · Unknown · Boeing 75726D

Difficulty date
August 16, 2023
Submitted
August 17, 2023
Operation
Air carrier
Aircraft
N823DX
Make and model
Boeing 75726D
Aircraft serial
33967
Aircraft time
47,545 hours, 23,509 cycles
Part
Unknown
Part number
UNKNOWN
Condition
Unknown
Location
Unknown
Stage of operation
CR
How discovered
O
Nature of condition
O
Precautionary procedure
B, A

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

What was found

SHIP 6823 -DIV/PRESS/DE- DIVERTED TO SLC DUE TO CABIN PRESSURIZATION ISSUES. CORRECTIVE ACTION: T/S FOUND RT PACK OUTLET BOOT DISCONNECTED AT FWD COMPARTMENT CABIN CHECK VALVE, RE-SECURED BOOT. FOUND PACK LEAKING FROM SLIP COUPLING ABOVE LOW-LIMIT VALVE, R/R SEALS. R/R #1 HI STAGE VALVE, REPLACED LT PACK SEC HX OUT TEMP SENSOR, REPLACED M864 AND LT PACK FLOW CONTROL VALVE. BOTH PACKS PASS SINGLE PACK CONFIDENCE TEST AND CABIN PRESS LEAK TEST PASSES.

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