Service difficulty report · Rib · Boeing 73779P

Difficulty date
April 28, 2023
Submitted
May 26, 2023
Operation
Air carrier
Aircraft
N7860A
Make and model
Boeing 73779P
Aircraft serial
29362
Aircraft time
49,661 hours, 34,220 cycles
Part
Rib
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

CRACK ON INSPAR RIB LOCATED AT STAB STA 120.30 AND 1 INCH FROM FRONT SPAR AT UPPER CHORD FLANGE RT HORIZONTAL STABILIZER. 2023-282721<[01] TOOL USED PN:NORTEC 600D;SN:210138503; DUE DATE:19-MAY-23;[02] TOOLS USED: TEMPERATURE CONTROLLER P/N: P3015GOES00000; S/N: 142811020; DUE DATE: 25-JAN-24; TEMPERATURE CONTROLLER P/N: P3015GOES00000; S/N: 112820025; DUE DATE: 01-FEB-24.;[03] PERFORMED REPAIR ON FRONT SPAR UPPER CHORD FLANGE OF INSPAR RIB LOCATED AT STAB STA 120.30 RT HORIZONTAL STABILIZER IAW B737-700 SRM 55-10-09-2R-5 REPAIR 5; EA 23-155-01469-WIP1 AND EA 23-155-01469<BR>SEE INDIVIDUAL SIGNS-OFF BELOW;[04] TASK CARD COMPLETE AND CERTIFIED AS RII. <BR><BR><BR>SEE INDIVIDUAL SIGNOFFS BELOW.

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