Service difficulty report · Rib · Boeing 737

Difficulty date
May 27, 2022
Submitted
June 3, 2022
Operation
Air carrier
Aircraft
N929AN
Make and model
Boeing 737
Aircraft serial
30078
Aircraft time
59,954 hours, 24,851 cycles
Part
Rib
Condition
Damaged
Location
Zone 300 - Stabs
Stage of operation
IN
How discovered
V
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

AIRCRAFT WAS NOT GROUNDED: LEFT HORIZONTAL STABILIZER INTERNAL RIB HAS TOOLING MARKS AT APPROXIMATELY STAB STA 129. 6 INCHES AFT OF FRONT SPAR. REMOVED DAMAGE AND ADDED DOUBLER REPAIR PER EA 336294.