Service difficulty report · Rib · Boeing 7377H4

Difficulty date
February 3, 2021
Submitted
March 9, 2021
Operation
Air carrier
Aircraft
N935WN
Make and model
Boeing 7377H4
Aircraft serial
36641
Aircraft time
39,462 hours, 23,697 cycles
Part
Rib
Condition
Cracked
Location
L/H Horiz. 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 INSPAR RIB LOCATED STAB STA 147.90 AND 1 INCH FROM FRONT SPAR LT HORIZONTAL STAB / PERFORMED PERMANENT REPAIR ON INSPAR RIB LOCATED AT STAB STA 147.90 AND 1 INCH FROM FRONT SPAR LT HORIZONTAL STAB IAW B737-700 SRM SRM 55-10-09-2R-5 REPAIR 5 FIG 205 MATERIAL USED PN 7075 T0-0.063 PO 2020206794 HEAT TREATED AND CONVERTED FROM T0 TO T6 IAW BAC 5602 TABLE X CRACK LENGTH 0.360 INCHES

More about the Boeing 737-7H4