Service difficulty report · Sill Drain · Boeing 73779P

Difficulty date
June 17, 2017
Submitted
January 26, 2022
Operation
Air carrier
Aircraft
N7858A
Make and model
Boeing 73779P
Aircraft serial
29361
Aircraft time
37,332 hours, 24,709 cycles
Part
Sill Drain
Condition
Corroded
Location
Asd Threshold
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*** CORROSION ON R/H AFT MOPSILL AT BS 986 / REMOVED CORROSION ON MOPSILL AT AFT SERVICE DOOR IAW SRM 51-10-02-0G-0. REMOVED CORROSION AREA 2.6' X 2.5'. ORIGINAL THICKNESS 0.080'. REMAINING THICKNESS .047'. FOUND TO BE OUT OF LIMITS IAW SRM 53-70-15-0I-1 AND SRM 53-70-15-1A-1. LOCATED DRILLED AND INSTALLED NEW MOPSILL ITEM-7530246 IAW SRM 51-40-05 AND SRM 51-40-02 88324U 26JUN17

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