Service difficulty report · 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
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

E&E COMPARTMENT LOWER AUXILIARY SILL BETWEEN S-21L AND-23L AT STA 320. FOUND CORROSION ON ANGLE. REMOVED EXFOLIATED ANGLE CHORD AT E&E COMPARTMENT LOWER AUXILIARY SILL; BETWEEN S21L AND S23L AT STA 320 APPX. IAW SRM 51-40-02-0G-0. REMOVED ANGLE CHORD AT E&E BAY LOWER SILL. FOUND OUT OF LIMITS IAW SRM 53-10-15-1A-1; 4.A. LOCATED AND DRILLED NEW ANGLE. FOUND OUT OF LIMITS IAW SRM 51-40-05-0G-0 AND DWG#141A8240. TREATED AND PRIMED DRILLED HOLES. INSTALLED NEW ANGLE IAWSRM 51-20-01-0G-0 AND DWG#141A8240.

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