Service difficulty report · Stiffener · Boeing 7377H4

Difficulty date
March 9, 2020
Submitted
March 23, 2020
Operation
Air carrier
Aircraft
N947WN
Make and model
Boeing 7377H4
Aircraft serial
36924
Aircraft time
33,928 hours, 20,447 cycles
Part
Stiffener
Condition
Cracked
Location
Rt Horiz Stab
Stage of operation
IN
How discovered
E
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

PERFORMED HIGH FREQUENCY EDDY CURRENT (HFEC) INSPECTION OF HOLES COMMON TO REPAIR AREA IAW 737 NDT PART 6; 51-00-00 PROCEDURE 16. CRACK INDICATION AT 10TH HOLE COUNTING FROM AFT END; INBOARD FLANGE. (THIS DEFECT DISCOVERED BY E38279-RHAME; LEE IN WIP #3 OF NRC (G720146) / REPAIRED R/H HORIZ STAB; INSPAR RIB #5 STIFFENER #4 PER SRM 55-10-09-2R-5.

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