Service difficulty report · Rib · Boeing 737*

Difficulty date
October 5, 2021
Submitted
November 18, 2021
Operation
Air carrier
Aircraft
N786SW
Make and model
Boeing 737*
Aircraft serial
29811
Aircraft time
68,452 hours, 40,246 cycles
Part
Rib
Condition
Cracked
Location
Vert. Stab.
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 DORSAL FIN 321A FORWARDMOST RIB CRACKED ; / [01] REMOVED DORSAL FIN FWD RIB AS PER B737-700 SRM 51-40-02-0G-0; [02] LOCATED AND DRILLED HOLES ON NEW RIB AS PER B737-7 SRM 51-40-05-0G-0.; [03] VERIFIED STEP 1-2 . OK TO INSTALL NEW RIB; [04] INSTALLED FWD RIB ON DORSAL FIN AS PER B737-700 SRM 51-40-02-0G-0; [05] VERIFIED STEP 4