Service difficulty report · Fastener · Boeing 7378H4

Difficulty date
October 24, 2022
Submitted
November 23, 2022
Operation
Air carrier
Aircraft
N8657B
Make and model
Boeing 7378H4
Aircraft serial
42535
Aircraft time
26,643 hours, 12,489 cycles
Engine
Cfmint CFM567B27E
Part
Fastener
Condition
Loose
Location
Lt 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

ON THE NR 1 ENGINE INLET LIP SKIN EXTERNAL SURFACE. THERE ARE THREE FASTENERS ABOVE THE OTBD SEAM THAT ARE PULLING THROUGH. REMOVED LOOSE FASTENERS IAW SRM 51-40-02. REAMED FASTENER HOLES TO FIRST OVERSIZE IAW SRM 54-10-01-1A-2 TABLE 101. PERFORMED FASTENER HOLE PROBE INSPECTION IAW NDT PART 6-51-00-00 PROCEDURE 16. NO DEFECTS NOTED. INSTALLED NEW FASTENERS IAW SRM 54-10-01-1A-2 AND SRM 51-40-02.

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