Service difficulty report · Fastener · Boeing 7377H4

Difficulty date
February 8, 2024
Submitted
February 27, 2024
Operation
Air carrier
Aircraft
N424WN
Make and model
Boeing 7377H4
Aircraft serial
29828
Aircraft time
71,917 hours, 42,688 cycles
Part
Fastener
Part number
UNKNOWN
Condition
Cracked
Location
Nr 1 Inlet
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

#1 ENGINE INLET HAS 3EA FASTENERS WITH CRACKED HEADS AT THE 10:00 SPLICE IN THE OUTER LIP SKIN: REQUIRES REPLACMENT OF INLET ASSY.<[01] UPDATED PARTS;[02] REMOVED AND REPLACED #1 ENG INLET COWL IAW AMM 71-11-01-400-802-F00<BR><BR>CAL TOOL<BR>T/W ID:ATS2321 DUE:06/24<BR>T/W ID:ATS2686 DUE:08/24;[03] VERIFIED;[04] VERIFIED CORRECTIVE ACTION 2;[05] REMOVED AND REPLACED #1 ENGINE INLET COWL AND PERFORMED INSTALLATION TEST GOOD PER AMM 71-11-01;[06] VERIFIED CORRECTIVE ACTION STEP 5. TASK CARD COMPLETE.

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