Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
November 2, 2023
Submitted
November 21, 2023
Operation
Air carrier
Aircraft
N914WN
Make and model
Boeing 7377H4
Aircraft serial
36622
Aircraft time
51,132 hours, 31,028 cycles
Part
Intercostal
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

FOUND CORROSION AT MAIN CABIN INTERCOSTAL STABILIZER RBL 11.05; BETWEEN STA. 294.5 & STA. 312; WL 208.1.<[01] ORIGINAL THICKNESS 0.080'; REMAINING MATERIAL 0.067'; REMOVED MATERIAL 0.013'. REWORKED AREA IS OUT OF LIMITS REF SRM 53-10-51-1A-1; FIGURE 105; DETAIL C. REMOVED AND INSTALLED NEW INTERCOSTAL STABILIZER AT MAIN CABIN; RBL 11.05; BETWEEN STA. 294.5 & STA. 312; WL 208.1. AS PER SRM 51-40-02-0G-0;[02] VERIFIED STEP # 1

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