Service difficulty report · Tee Angle · Boeing 7377H4

Difficulty date
November 16, 2021
Submitted
January 6, 2022
Operation
Air carrier
Aircraft
N770SA
Make and model
Boeing 7377H4
Aircraft serial
30589
Aircraft time
69,290 hours, 41,022 cycles
Part
Tee Angle
Condition
Corroded
Location
Fuselage
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

CORROSION ON E&E COMPARTMENT LOWER AUXILIARY SILL S-23L FROM BS 294.5 TO 312 . REMOVED EXFOLIATED TEE ANGLE IAW SRM 51-40-02-0G-0. PERFORMED PENETRANT INSP ON FABRICATED ANGLE IAW SOPM 20-20-02; NO CRACKS NOTED. A NEW TEE ANGLE FABRICATED AND INSTALLED THE NEW TEE ANGLE IAW SRM 51-40-02-0G-0 AND DWG 141A8131.

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