Service difficulty report · Oxygen Mask · Boeing 777F16

Difficulty date
January 27, 2026
Submitted
January 27, 2026
Operation
Air carrier
Aircraft
N703GT
Make and model
Boeing 777F16
Aircraft serial
41518
Aircraft time
62,949 hours, 8,680 cycles
Part
Oxygen Mask
Condition
Unwanted Deploy
Location
Zone 200
Stage of operation
IN
How discovered
V
Nature of condition
W
Precautionary procedure
K

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

What was found

DURING SECURE CHECKLIST, SUPERNUMERARY SWITCH INADVERTENTLY SELECTED. REPACKED SUPERNUMERARY O2 MASKS IAW AMM 35-23-17, VERIFIED SUPERNUMERARY O2 PRESSURE 1510 PSI AND SWITCH RESET IAW AMM 35-23-00/501 AND AMM 35-23-00/601.

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