Service difficulty report · Skin Panel · Boeing 73779P

Difficulty date
December 28, 2024
Submitted
January 23, 2025
Operation
Air carrier
Aircraft
N7855A
Make and model
Boeing 73779P
Aircraft serial
29357
Aircraft time
58,892 hours, 38,173 cycles
Part
Skin Panel
Condition
Cracked
Location
Zone 300
Stage of operation
IN
How discovered
E
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

CRACK INDICATION FOUND ON RT HORIZONTAL STABILIZER LOWER SKIN PANEL. LOCATED AT STAB STA 193.9 RIB AND 16 INCH. FROM FRONT SPAR. INBOARD SIDE OF RIB. CRACK LENGTH = 0.960 INCH. APPROX. 2024-766340<[01] EQUIPMENT P/N PHASEC 3D; S/N 800YBRK; DUE DATE 16-JUL-25 WAS USED ON STEP 5 AND STEP 6;[02] PERFORMED REPAIR CAT B LOCATED ON RT HORIZONTAL STABILIZER LOWER SKIN PANEL. BTW STAB STA 184.70 RIB TO STAB STA 203.10 RIB AND 16 INCH. FROM FRONT SPAR IAW B737-700 SRM 55-10-01-2R-11<BR>SEE INDIVIDUAL SIGN OFF BELOW;[03] PERFORMED REPAIR CAT B LOCATED ON RT HORIZONTAL STABILIZER LOWER SKIN PANEL. BTW STAB STA 184.70 RIB TO STAB STA 203.10 RIB AND 16 INCH. FROM FRONT SPAR IAW B737-700 SRM 55-10-01-2R-11<BR>RII ITEM<BR>SEE INDIVIDUAL SIGN OFF BELOW

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