Service difficulty report · Unknown · Boeing 75724APF

Difficulty date
February 15, 2026
Submitted
February 20, 2026
Operation
Air carrier
Aircraft
N426UP
Make and model
Boeing 75724APF
Aircraft serial
25457
Aircraft time
32,924 hours, 22,170 cycles
Part
Unknown
Condition
Fumes
Location
Zone 200
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

ON TAKEOFF ROLL, FUMES WERE OBSERVED WITH AN ACRID WET SOCK ODOR. AT POWER REDUCTION TURNED RIGHT PACK OFF AND FUMES DISSIPATED. RAN NR 2 ENGINE AND PACKS NO FUMES PRESENT COULD NOT DUPLICATE. IAW AMM 71-00-00 BEGINNING FUEL QUANTITY 17.7 ENDING 17.4

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