Service difficulty report · Cowling · Boeing 7378H4

Difficulty date
July 27, 2022
Submitted
August 8, 2022
Operation
Air carrier
Aircraft
N8322X
Make and model
Boeing 7378H4
Aircraft serial
36997
Aircraft time
33,013 hours, 15,031 cycles
Part
Cowling
Condition
Corroded
Location
L/H Fuselage
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 COWL HAS NUMEROUS AREAS OF CORROSION AROUND ATTACHING FASTENERS FOR UPPER AND LOWER BARREL SKINS PT# OF COWL 314-2100-3 SN# 4779001 / [01] REMOVED #1 ENGINE INLET COWL PER AMM 71-11-01 REMOVED T12 SENSOR PER AMM 73-21-05;[02] UPDATED MEASUREMENT'S TABLE; INLET COWL TO BE REPLACED DUE TO TIME FOR REPAIR.;[03] VERIFIED;[04] REPLACED #1 ENGINE INLET COWL PER AMM 71-11-01-400-802-F00 STEPS 5G(1) THROUGH 5G(13) AND 5G(18) THROUGH 5G(19).<BR><BR>TORQUE VALUES VERIFIED: <BR>ID PER1990 DUE 04/2023<BR>ID PER1989 DUE 04/2023;[05] CERTIFIED STEP 4.;[06] UPDATED STEP 1<BR><BR>OK TO CLOSE PANEL 431AT;[07] REINSTALLED PANEL 431AT PER AMM 54-52-01-410-801 STEP 3E(1).;[08] VERIFIED;[09] VERIFIED CORRECTIVE ACTIONS 4; 5; 7; AND 8;[10] INSTALLATION COMPLETE;[11] VERIFIED TASK CARD COMPLETE.;[12] VERIFIED MEASUREMENT TABLE.

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