Service difficulty report · Web · Boeing 7378H4

Difficulty date
November 2, 2023
Submitted
December 5, 2023
Operation
Air carrier
Aircraft
N8554X
Make and model
Boeing 7378H4
Aircraft serial
36993
Aircraft time
19,892 hours, 9,901 cycles
Part
Web
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

CORROSION FWD CARGO BAY SUB THRESHOLD WEB MULTIPLE AREAS AROUND NUT PLATE HOLES BS440+10' TO BS490' RBL 26.5 WL156<[01] VERIFIED STEPS 1;2 COMPLETE AND MEASUREMENT TABLE.;[02] REMOVED AND REPLACED FWD CARGO BAY SUB THRESHOLD WEB BS 440-492 RBL 26.5 WL 156 PER SRM 51-40-02-0G-0; SRM 51-40-05-0G-0; DWG 143A8330.;[03] UPDATED PART USAGE

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