Service difficulty report · A/C Pack · Boeing 767300

Difficulty date
November 19, 2025
Submitted
November 25, 2025
Operation
Air carrier
Aircraft
N376UP
Make and model
Boeing 767300
Aircraft serial
66811
Aircraft time
8,420 hours, 3,440 cycles
Part
A/C Pack
Condition
Odor
Location
Zone 100
Stage of operation
TO
How discovered
O
Nature of condition
B
Precautionary procedure
O

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

What was found

**SUPPLEMENTAL SDR** ONCE TAKE OFF POWER WAS SET A TERRIBLE DIRTY WET SOCK SMELL FLOODED THE COCKPIT WE TURNED OFF THE RIGHT PACK AND THE FOUL SMELL WENT AWAY. REVERSED DMP AND RAN R/H PACK WITH R/T ENG, AND APU, ISOLATED VARIOUS LINES AND CLEANED WATER SEPARATOR, ALSO FLUSHED DRAIN LINES WITH AIR, OPS CHECKS GOOD, NO ODOR DETECTED, IAW AMM 21-51-00-601, 21-51-00-705-110-001. DMI CLEARED, PLACARDS REMOVED. C/W CHECKS, DMI CLEARED, PLACARDS REMOVED

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