Service difficulty report · Vent · Boeing 7377H4

Difficulty date
October 8, 2023
Submitted
December 5, 2023
Operation
Air carrier
Aircraft
N227WN
Make and model
Boeing 7377H4
Aircraft serial
34450
Aircraft time
59,356 hours, 35,576 cycles
Part
Vent
Part number
UNKNOWN
Condition
Cracked
Location
Zn 500 Left Wing
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

DURING FUEL TANK ENTRY/INSPECTION FOUND 3' CRACK L/H TANK AFT VENT BOX IB OF PYLON ABOVE RIB 6. WORKING MEL 28-2-05 TTG8Q00NT6WX<[01] ADDED MEASUREMENTS;[02] REMOVED BOLT TO GAIN ACCESS FOR CRACK AREA I.A.W SRM 51-40-02-0G-0;[03] OK TO TREAT AND PRIME REPAIR PARTS;[04] TREATED AND PRIMED REPAIR PARTS AND CUT EDGES IAW AMM 28-11-00 AND AMM 51-20-01;[05] VERIFIED STEP 4.;[06] BOLT REMOVED ON STEP 2 WAS INSTALLED ON FAULT TTG8Q00P0DP6 STEP 22;[07] REPAIRED LH WING STRINGER U10 CRACK AT WSTA 228.26 (RIB 6) IAW EA 23-157-03071;[08] VERIFIED STEP 7<BR>AUDIT C/W;[09] AUDIT C/W

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