Service difficulty report · Support · Boeing 7378H4

Difficulty date
May 25, 2023
Submitted
July 6, 2023
Operation
Air carrier
Aircraft
N8302F
Make and model
Boeing 7378H4
Aircraft serial
36680
Aircraft time
36,881 hours, 16,672 cycles
Part
Support
Part number
UNKNOWN
Condition
Cracked
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

FWD CABIN WET AREA FLOOR SUPPORT INTERCOSTAL CRACKED AROUND FASTENETS HOLES @ LBL 13 BETWEEN STA 380 AND 400 WL 208.1 MKD DOT<[01] REMOVED AND REPLACED FLOOR SUPPORT INTERCOSTAL AT FWD CABIN WET AREA @ LBL 13'; WATER LINE 208.1 BETWEEN STA 380 AND STA 400 PER B737-800 SRM 51-40-02-0G-0 AND BOEING DRAWING 143A5400;[02] ** CORRECTION **<BR>REMOVED AND REPLACED FLOOR SUPPORT UPPER CHORD AT FWD CABIN WET AREA @ LBL 13'; WATER LINE 208.1 BETWEEN STA 380 AND STA 400 PER B737-800 SRM 51-40-02-0G-0 AND BOEING DRAWING 143A5400;[03] VERIFIED STEP 2.

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