Service difficulty report · Sill Drain · Boeing 7377H4

Difficulty date
October 6, 2023
Submitted
November 3, 2023
Operation
Air carrier
Aircraft
N908WN
Make and model
Boeing 7377H4
Aircraft serial
36620
Aircraft time
51,548 hours, 31,049 cycles
Part
Sill Drain
Part number
UNKNOWN
Condition
Corroded
Location
Zn 100 Fus Lower
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

R/H AFT MOPSIL HAS CORROSION BS 955 RBL 55; BS 959 RBL 55; AND BS 967-987 RBL 50<[01] REMOVED AND REPLACED ASD MOP SILL I.A.W SRM 51-10-02-0G-0 PAR 9C; SRM 53-10-15-1A-1 ALLOWABLE DAMAGE 1; SRM 51-40-02-0G AND DWG 147A8501.;[02] VERIFIED CORRECTIVE ACTION 1

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