Service difficulty report · Support · Boeing 7378

Difficulty date
October 29, 2023
Submitted
November 14, 2023
Operation
Air carrier
Aircraft
N8715Q
Make and model
Boeing 7378
Aircraft serial
42570
Aircraft time
13,037 hours, 5,794 cycles
Part
Support
Part number
UNKNOWN
Condition
Corroded
Location
Zn 200 Fus Top
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

UPON GETTING OK TO INSTALL ACB R/H FLOOR TO SIDEWALL SUPPORT PLATE BS727F+18' TO BS 767 RBL22 WL156; NOTICED CORROSION ON INTERCOSTAL AT BS747-767; RBL22; WL156.<[01] VERIFIED STEPS 1;2 COMPLETE.;[02] COMPLETED ALL WORK ON FAULT TTG8Q00PARA3;[03] EVALUATED CORROSION IN INTERCOSTAL; FOUND TO BE OUT OF LIMITS; REMOVED OLD INTERCOSTAL; LOCATED DRILL AND INSTALLED NEW INTERCOSTAL ALL PER SRM 53-00-04-1A-2; SRM 51-40-02-0G-0 DWG 140N4500; 146A7500;[04] FINAL INSPECTION. JOB COMPLETE.;[05] VERIFIED MEASUREMENTS.

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