Service difficulty report · Rib · Boeing 7377H4

Difficulty date
April 18, 2024
Submitted
May 9, 2024
Operation
Air carrier
Aircraft
N472WN
Make and model
Boeing 7377H4
Aircraft serial
33831
Aircraft time
64,840 hours, 38,796 cycles
Part
Rib
Part number
UNKNOWN
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

VERTICAL STAB L/E ACCESS PANEL HAS CRACK AT RIB #9 FROM THE TOP<[01] ***SUMMARY***<BR>REMOVED PAINT ON VERTICAL STAB L/E ACCESS PANEL RIB #9 AS PER B-737 AMM 51-21-11-150-801<BR>REMOVED VERTICAL STAB L/E ACCESS PANEL RIB #9 AS PER B-737 SRM 51-40-02-0G-0<BR>LOCATED AND DRILLED VERTICAL STAB L/E ACCESS PANEL RIB #9 AS PER B-737 SRM 51-40-05-0G-0<BR>INSTALLED NEW L/E RIB #9 AS PER B-737 SRM 51-40-02-0G-0 & DWG 176A1410<BR>RESTORED FINISH ON VERTICAL STAB L/E ACCESS PANEL HAS CRACK AT RIB #9 AS PER B-737 AMM 51-21-41-370-803; AMM 51-21-72-370-803 & AMM 51-21-73-370-804;[02] VERIFIED STEP 1.

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