Service difficulty report · Rib · Boeing 7377BD

Difficulty date
July 22, 2020
Submitted
August 31, 2020
Operation
Air carrier
Aircraft
N7749B
Make and model
Boeing 7377BD
Aircraft serial
36724
Aircraft time
34,744 hours, 17,727 cycles
Part
Rib
Condition
Cracked
Location
Horizontal 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

CRACK FRONT SPAR INSPAR RIB 4 ON LOWER POSITION AT LEVEL STA 120.30 AT RT HORIZONTAL STABILIZER (2 EA) / REPAIRED INSPAR RIB AT LEVEL STA 120.30 AT RT HORIZONTAL STABILIZER LOWER POSITION IAW B737-700 SRM 55-10-09-2R-5 REPAIR 5 FIG 204

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