Service difficulty report · Rib · Boeing 737924ER

Difficulty date
August 15, 2019
Submitted
August 21, 2019
Operation
Air carrier
Aircraft
N77430
Make and model
Boeing 737924ER
Aircraft serial
37098
Aircraft time
36,040 hours, 12,374 cycles
Part
Rib
Condition
Cracked
Location
Horisontal Stab
Part time
36,040 hours, 12,374 cycles
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

R/H STABILIZER RIB 92.7, VERTICAL STIFFNERS NR 2 AND 3 CRACKED 1 INCH ABOVE LOWER FLANGE. SKIN WAS CUT TO OBTAIN ACCESS TO REPAIR VERITCAL STIFFNERS, SKIN CUT OUT REPAIRED PER SRM 55-10-01 REPAIR 11 TABLE 204 INCORPORATING PREVIOUS REPAIR ON LP 9626841. NEW DOUBLER LOCATION: STA 88 TO 111, 7 TO 43 INCHES AFT OF FRONT SPAR. STIFFNERS REPAIRED PER SRM 55-10-09 REPAIR 4 .