Service difficulty report · Drain Mast · Boeing 7377BD

Difficulty date
August 3, 2024
Submitted
August 9, 2024
Operation
Air carrier
Aircraft
N7713A
Make and model
Boeing 7377BD
Aircraft serial
33919
Aircraft time
62,242 hours, 33,243 cycles
Part
Drain Mast
Condition
Corroded
Location
Zone 100
Stage of operation
IN
How discovered
9
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

INTERGRANULAR CORROSION ON AFT DRAIN MAST APPROX. STA 1000 BETWEEN S-24L & 25L<[01] C/W EA 24-153-02124;[02] VERIFIED REPAIR PER EA 24-153-02124-WIP1 TTG8Q00V07QE; EA 24-153-02124-WIP2 TTG8Q00V0QTW AND EA 24-153-02124 FINAL TTG8Q00V18WP.

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