Service difficulty report · Stiffener · Boeing 7377H4

Difficulty date
September 26, 2023
Submitted
October 23, 2023
Operation
Air carrier
Aircraft
N915WN
Make and model
Boeing 7377H4
Aircraft serial
36888
Aircraft time
50,935 hours, 30,834 cycles
Part
Stiffener
Part number
UNKNOWN
Condition
Cracked
Location
Zn 300 Stabilize
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

RIGHT HORIZONTAL STAB RIB # 4 HAS A CRACK AT FIRST HOLE FWD OF LOWER STIFFENER #4<[01] REMOVED CRACK AT FIRST HOLE FWD OF LOWER SECTION COMMON TO STIFFENER #4 REF SRM 51-10-02-0G-0 AND INSTALLED REPAIR PARTS AT RIGHT HORIZONTAL STAB RIB # 4 COMMON TO STIFFENER #4 REF SRM 55-10-09-2R-5.;[02] CORRECTION TO STEP 1. REMOVED CRACK AT FIRST HOLE FWD OF LOWER SECTION COMMON TO STIFFENER #4 REF SRM 51-10-02-0G-0 AND INSTALLED REPAIR PARTS AT RIGHT HORIZONTAL STAB RIB # 4 COMMON TO STIFFENER #4 REF SRM 55-10-09-2R-5. THIS WORK WAS ACCOMPLISHED IN CONJUCTION WITH TTG8Q00NJPDK;[03] RII /VERIFIED ENTRY #2 AS A CORRECT ENTRY FOR WORK ACCOMPLISHED AS A CORRECTIVE ACTION TAKEN & ALSO APPLYS TO ENTRY #1 AS A CORRECTION OF INFO. ENTERD. RII/VERIFIED TT# ENTERD WAS WORKED IN CONJUCTION WITH THIS N/R CARD.

More about the Boeing 737-7H4