Service difficulty report · Stiffener · Boeing 7377H4

Difficulty date
February 7, 2024
Submitted
March 7, 2024
Operation
Air carrier
Aircraft
N926WN
Make and model
Boeing 7377H4
Aircraft serial
36629
Aircraft time
51,481 hours, 31,307 cycles
Part
Stiffener
Part number
UNKNOWN
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

R/H HORIZONTAL STAB INTERNAL SURFCE RIB 5 STIFFENER 2 CRACKED.<[01] REMOVED DAMAGED PART OF STIFFENER #2 AT RIB #5 REF. SRM 55-10-09-2R-4 AND INSTALLED REPAIR PARTS (T-SECTION; ANGLE AND SHIMS) PER REF 55-10-09-2R-4 REPAIR 4 AND SRM 51-40-02-0G-0;[02] CORRECTION TO STEP 1; <BR>REMOVED DAMAGED PART OF STIFFENER #2 AT RIB #5 REF. SRM 55-10-09-2R-4 AND INSTALLED REPAIR PARTS (T-SECTION; ANGLE AND SHIMS) PER REF 55-10-09-2R-4 REPAIR 4 AND SRM 51-40-02-0G-0 AND ACCOMPLISHED FILLET SEAL TO REPAIR PARTS PER REF. SRM 55-10-09-2R-4 REPAIR 4 AND AMM 51-31-00-390-804;[03] RII / VERIFIED ENTRY #2 WAS A GOOD CORRECTION TO ENTRY#1 ALSO ENTRY#2 IS WORK ACCOMPLISHED FOR THIS REPAIR.

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