Service difficulty report · Support · Boeing 7377H4

Difficulty date
April 24, 2026
Submitted
May 21, 2026
Operation
Air carrier
Aircraft
N250WN
Make and model
Boeing 7377H4
Aircraft serial
34972
Aircraft time
64,577 hours, 39,254 cycles
Part
Support
Condition
Corroded
Location
Zone 100
Stage of operation
IN
How discovered
V
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

CORRODED SUPPORT ZEE BTWN BS 727 - 847, LBL 21, WL 156. REPLACED SUPPORT ZEE AND CLIP SECTION IAW SRM 51-40-02-0G, DWG 146A7500, SHEET 86, REV A, & DWG 146A7502 SHEET 27 REV-. EVALUATED REEWORK AREAS LOC ON SUPPORT ZEE, AND FOUND WITHIN LIMITS IAW SRM 53-00-53-1A-2, ALLOWABLE DAMAGE 2, STEP 4.A(2), DETAIL D, FIGURE 103. NOMINAL THICKNESS IS 0.040; IAW SRM 53-60-53-0I-2 AND BAC1496-377.MRT IS;0.039 INCH.

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