Service difficulty report · Doubler · Boeing 7377H4

Difficulty date
June 14, 2018
Submitted
February 18, 2022
Operation
Air carrier
Aircraft
N717SA
Make and model
Boeing 7377H4
Aircraft serial
27851
Aircraft time
69,992 hours, 41,449 cycles
Part
Doubler
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 INTERNAL DOUBLER STA 360 +3' AT STR 28L / BLENDED CORROSION AT STA 360 + 3' STR 28R INTERNAL DOUBLER; ORIGINAL THICKNESS .050'; REMAINING .044'; LOSS OF .006' FOUND OUT OF LIMITS IAW SRM 53-00-01-1A-5. REMOVED CORRODED DOUBLER AND LOCATED; DRILLED AND INSTALLED NEW DOUBLER IAW SRM 51-40-02-0G-0 AND DWG 143A3230 REV. B APPLIED CIC TO NEW DOUBLER IAW AMM 51-21-91-620-802

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