Service difficulty report · None · Boeing 7377H4

Difficulty date
September 18, 2021
Submitted
October 4, 2021
Operation
Air carrier
Aircraft
N296WN
Make and model
Boeing 7377H4
Aircraft serial
36613
Aircraft time
46,748 hours, 27,979 cycles
Part
None
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

L/H HORIZONTAL STAB INSPAR RIB ASSY 5 (STAB STA 129.50) #2 VERTICAL STIFFENER CRACKED ; LH HORIZONTAL STA INSPAR RI ASSY 5 (STAB STA 129.50) #2 VERTICAL STIFFENER CRACKED / [01] CUT AND REMOVED DAMAGE ON #5 RIB ASSY AT #2 STIFFENER PER SRM 55-10-09-2R-4; [02] CUT AND REMOVED DAMAGE ON #5 RIB ASSY AT #2 STIFFENER PER SRM 55-10-09-2R-4; [03] CUT AND REMOVED DAMAGE ON #5 RIB ASSY AT #2 STIFFENER PER SRM 55-10-09-2R-4; [04] ON THE REWORKED AREA; PERFORMED HFEC SURFACE TEST AS REQUIRED PER NDT MANUAL PART 06; 51-00-00 PROCEDURE 23 AND ALSO HFEC HOLE PROBE OF FASTENER HOLES IN THE REPAIR AREA PER NDT MANUAL PART 06; 51-00-00 PROCEDURE 16. DOCUMENTED ALL FINDING AGAINST THIS TASK; NUMBER TTG8Q006L8EV; [05] FABRICATED REPAIR PARTS; LOCATED; AND LAYED OUT REPAIR AS PER SRM 55-10-09-2R-5. REPAIR FILLER ON LOWER CHORD NEEDS TO BE FABRICATED AND ALL REPAIR PARTS NEED TREATED AND PRIMED.; [06] INSPECTION OF CORRECTIVE ACTION #5; INSPECTION C/W; [07] FABRICATED FILLER & TREAT & PRIMED PARTS PER SRM 51-20-01.; [08] C/W LINE 7; [09] OK TO INSTALL PARTS; [10] INSTALLED REPAIR PARTS ON RIB PER SRM 55-10-09-2R-5.; [11] INSTALLATION OF REPAIR COMPLETE; [12] REPAIR COMPLIED WITH; SEE LINE ITEMS 1-11

More about the Boeing 737-7H4