Service difficulty report · Stiffener · Boeing 7377BD

Difficulty date
April 7, 2023
Submitted
May 5, 2023
Operation
Air carrier
Aircraft
N7747C
Make and model
Boeing 7377BD
Aircraft serial
36091
Aircraft time
50,468 hours, 25,711 cycles
Part
Stiffener
Condition
Cracked
Location
Zn 300 Stabilize
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

SUSPECT CRACK AT RIGHT HORIZONTAL STABILIZER RIB 4 STIFFENER 4 AT LWR TRANSITION AREA.<[01] CORRECTION TO STEP#7 SQUISH OUT TIME 2:00PM 04/17/2023;[02] REMOVED DAMAGE AREA AND INSTALLED NEW REPAIR PER SRM 55-10-09-2R-4;[03] VERIFIED STEP # 1 AND 2

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