Service difficulty report · Oxygen Box · Boeing 7673S1

Difficulty date
November 20, 2025
Submitted
November 21, 2025
Operation
Air carrier
Aircraft
N640GT
Make and model
Boeing 7673S1
Aircraft serial
25221
Aircraft time
101,077 hours, 21,615 cycles
Part
Oxygen Box
Part number
MXP147
Part serial
S6772
Condition
Broken
Location
Zone 200
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

F/O'S O2 TEST LEVER ON O2 MASK BOX BROKEN. REMOVED & REPLACED F/O O2 MASK STOWAGE BOX IAW AMM 35-11-00/501, AND 35-11-51. OPS & LEAK CHECKED GOOD.

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