What was found
DORSAL FIN FWD RIB STA 877 SEVERAL CRACKS NOTED (MKD DOT 016). REMOVED AND REPLACED DORSAL FIN RIB AT STA 877, IAW B737-700 SRM 51-40-02-0G-0 AND DWG 174A1103.
- Difficulty date
- December 17, 2020
- Submitted
- January 12, 2021
- Operation
- Air carrier
- Aircraft
- N550WN
- Make and model
- Boeing 73776Q
- Aircraft serial
- 30279
- Aircraft time
- 59,593 hours, 37,112 cycles
- System (JASC)
- 5531 · Vertical Stabilizer, Spar/Rib
- Part
- Rib
- Part number
- 174A1103
- Condition
- Cracked
- Location
- Vertical 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.